CN107989090B

Movatterモバイル変換

Info

Publication number: CN107989090B
Application number: CN201711337087.1A
Authority: CN
Inventors: 邓亚东; 张剑寒; 冉渊; 唐郁林; 苏楚奇
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2020-01-14
Anticipated expiration: 2037-12-14
Also published as: CN107989090A

Abstract

Translated fromChinese

本发明公开了一种挖掘机侧向倾倒清洁装置，包括卷筒、卷簧、卷材、套筒以及驱动装置，其中，套筒和卷筒分别固定于货箱的两侧，卷簧容纳于套筒中，套筒上设有缝隙以供卷材穿过，驱动装置与卷筒连接以驱动其转动，卷筒和驱动装置安装于货箱上且均位于货箱隔板的外侧，卷材的一端穿过货箱上隔板的缝隙与卷筒固定连接，卷材的另一端穿过套筒的缝隙与卷簧固定连接。使用本发明提出的挖掘机侧向倾倒清洁装置，可方便清除货箱中的残余物料。

The invention discloses a side dumping cleaning device for an excavator. In the sleeve, the sleeve is provided with a gap for the coil to pass through, the driving device is connected with the reel to drive it to rotate, the reel and the driving device are installed on the cargo box and are located on the outside of the bulkhead of the cargo box. One end of the coil is fixedly connected to the reel through the gap of the upper partition of the cargo box, and the other end of the coil is fixedly connected to the coil spring through the gap of the sleeve. Using the excavator side dumping cleaning device provided by the present invention can easily remove the residual materials in the cargo box.

Description

Translated fromChinese

挖掘机及其侧向倾倒清洁装置Excavator and its side dump cleaning device

技术领域technical field

本发明涉及挖掘机辅助设备技术领域，尤其涉及一种挖掘机及其侧向倾倒清洁装置。The invention relates to the technical field of excavator auxiliary equipment, in particular to an excavator and a side dumping cleaning device thereof.

背景技术Background technique

随着城市化进程的不断加快，与城市化建设以及公共设施维护的工作越来越多。市政公用工程的工作环境比较特殊，城市地下往往有布置有复杂的电缆网络与水管等设施，在进行挖掘工作时要防止对这些设施造成破坏，同时需要尽量减少对周围环境的影响。针对这种情况，吸入式挖掘机正在逐渐取代传统挖掘设备，以满足复杂的挖掘需求。With the continuous acceleration of urbanization, more and more work is related to urbanization construction and maintenance of public facilities. The working environment of municipal public works is relatively special. There are often complex cable networks and water pipes arranged underground in the city. During the excavation work, it is necessary to prevent damage to these facilities, and at the same time, it is necessary to minimize the impact on the surrounding environment. In response to this situation, suction excavators are gradually replacing traditional excavation equipment to meet complex excavation needs.

吸入式挖掘机的货箱为密闭式，采用液压举升货箱进行侧向倾倒，因举升油缸长度限制，其倾倒角度有限，货箱倾倒角度过大会使重心偏移，造成翻车的危险。并且吸入式挖掘机吸入的物料多为有粘性的泥土和少量的水，往往会有部分残留在货箱内壁难以清除，因此有必要开发一种侧向倾倒清洁装置，以清除残留的物料。The cargo box of the suction excavator is closed, and the hydraulic lifting cargo box is used for side dumping. Due to the limitation of the length of the lifting cylinder, the dumping angle is limited. If the dumping angle of the cargo box is too large, the center of gravity will be shifted, causing the danger of overturning. Moreover, the materials sucked by the suction excavator are mostly sticky soil and a small amount of water, and some of them are often left on the inner wall of the cargo box and are difficult to remove. Therefore, it is necessary to develop a side dumping cleaning device to remove the residual materials.

发明内容SUMMARY OF THE INVENTION

本发明的主要目的在于提供一种挖掘机及其侧向倾倒清洁装置，旨在方便清除货箱中的残余物料。The main purpose of the present invention is to provide an excavator and its side dumping cleaning device, which is intended to facilitate the removal of residual materials in a cargo box.

为实现上述目的，本发明提供一种挖掘机侧向倾倒清洁装置，包括卷筒、卷簧、卷材、套筒以及驱动装置，其中，In order to achieve the above object, the present invention provides a side dumping cleaning device for an excavator, comprising a reel, a coil spring, a coil, a sleeve and a drive device, wherein,

所述套筒和卷筒分别固定于货箱的两侧，卷簧容纳于套筒中，套筒上设有缝隙以供卷材穿过，驱动装置与卷筒连接以驱动其转动，卷筒和驱动装置安装于货箱上且均位于货箱隔板的外侧，卷材的一端穿过货箱上隔板的缝隙与卷筒固定连接，卷材的另一端穿过套筒的缝隙与卷簧固定连接。The sleeve and the reel are respectively fixed on both sides of the cargo box, the coil spring is accommodated in the sleeve, the sleeve is provided with a gap for the coil to pass through, the driving device is connected with the reel to drive it to rotate, and the reel is And the driving device is installed on the cargo box and is located on the outer side of the bulkhead of the cargo box, one end of the coil passes through the gap of the upper bulkhead of the cargo box and is fixedly connected to the reel, and the other end of the coil passes through the gap of the sleeve and is connected to the roll. Spring fixed connection.

优选地，所述卷筒和卷簧均通过粘连的方式与卷材可拆卸连接。Preferably, both the reel and the coil spring are detachably connected to the coil material by means of adhesion.

优选地，所述驱动装置包括步进电机、固定于步进电机输出轴上的第一皮带轮、固定于卷筒上的第二皮带轮以及连接第一皮带轮和第二皮带轮的皮带，步进电机工作时驱动卷筒正转或反转以带动卷材移动。Preferably, the driving device includes a stepping motor, a first pulley fixed on the output shaft of the stepping motor, a second pulley fixed on the reel, and a belt connecting the first pulley and the second pulley, and the stepping motor works At the same time, the reel is driven to rotate forward or reverse to drive the coil to move.

优选地，所述挖掘机侧向倾倒清洁装置还包括与步进电机电连接的控制器，该控制器控制步进电机以分离物料和回位。Preferably, the excavator side dumping cleaning device further comprises a controller electrically connected with the stepper motor, the controller controls the stepper motor to separate the material and return to the position.

优选地，所述卷筒的两端均通过轴承安装于货箱上。Preferably, both ends of the reel are mounted on the cargo box through bearings.

优选地，所述套筒中固定有中心轴，所述卷簧套于中心轴上，当卷材上没有物料时，卷材在卷簧的弹力作用下进入套筒。Preferably, a central shaft is fixed in the sleeve, and the coil spring is sleeved on the central shaft. When there is no material on the coil, the coil enters the sleeve under the elastic force of the coil spring.

优选地，所述套筒安装在货箱倾倒侧内壁上方，套筒外壁与货箱内壁之间有间隙以便水和少量物料排出。Preferably, the sleeve is installed above the inner wall of the dumping side of the cargo box, and there is a gap between the outer wall of the sleeve and the inner wall of the cargo box for the discharge of water and a small amount of material.

优选地，货箱的外侧壁上固定有盒体，所述驱动装置固定于盒体中。Preferably, a box body is fixed on the outer side wall of the cargo box, and the driving device is fixed in the box body.

优选地，所述卷材的宽度与货箱隔板宽度相同；所述套筒在货箱上的安装高度高于卷筒的安装高度。Preferably, the width of the coil is the same as the width of the bulkhead of the cargo box; the installation height of the sleeve on the cargo box is higher than the installation height of the reel.

本发明进一步提出一种挖掘机，包括上述的挖掘机侧向倾倒清洁装置。The present invention further provides an excavator, including the above-mentioned excavator side dumping cleaning device.

本发明提出的挖掘机侧向倾倒清洁装置，其有益效果如下。The side dumping cleaning device for an excavator proposed by the present invention has the following beneficial effects.

1、使用步进电机作为动力装置，用控制器控制其转动。在工作时，可根据物料倾倒情况决定是否启用清洁装置，或者根据情况需要卷材卷入多少，无需人力操作，整个过程耗时短。1. Use a stepper motor as a power device, and use a controller to control its rotation. When working, it can be decided whether to activate the cleaning device according to the material dumping situation, or how much the coil needs to be involved according to the situation. No manual operation is required, and the whole process takes a short time.

2、本侧向倾倒清洁装置可以使倾倒角度再次增大，无需货箱移动，卷筒转动时，卷材被拉伸，倾倒角增大，残留物料将会随倾倒角再次增大而被清除，剩余的粘附物料将通过隔板间隙与卷材分离，进而完全清除。2. This side dumping cleaning device can increase the dumping angle again without moving the cargo box. When the reel rotates, the coil is stretched, the dumping angle increases, and the residual material will be removed as the dumping angle increases again. , the remaining adhering material will be separated from the coil through the gap of the separator, and then completely removed.

3、使用步进电机作为动力装置，卷筒作为传动件，动力装置位于货箱外，节省空间，传动部件少，结构简单，便于安装。3. The stepping motor is used as the power device, the reel is used as the transmission part, and the power device is located outside the cargo box, which saves space, has few transmission parts, and has a simple structure and is easy to install.

附图说明Description of drawings

图1为本发明挖掘机侧向倾倒清洁装置的整体结构示意图；Fig. 1 is the overall structure schematic diagram of the side dumping cleaning device of the excavator according to the present invention;

图2为本发明挖掘机侧向倾倒清洁装置的局部结构俯视示意图；2 is a schematic top view of the partial structure of the side dumping cleaning device of the excavator according to the present invention;

图3为本发明挖掘机侧向倾倒清洁装置的安装俯视结构示意图；3 is a schematic view of the installation top view structure of the side dumping cleaning device of the excavator according to the present invention;

图4为本发明挖掘机侧向倾倒清洁装置在处于工作状态1时的结构示意图；4 is a schematic structural diagram of the excavator side dumping cleaning device of the present invention when it is in working state 1;

图5为本发明挖掘机侧向倾倒清洁装置在处于工作状态2时的结构示意图；5 is a schematic structural diagram of the excavator side dumping cleaning device of the present invention when it is in working state 2;

图6为本发明挖掘机侧向倾倒清洁装置在处于工作状态3时的结构示意图。FIG. 6 is a schematic structural diagram of the side dumping cleaning device of the excavator in the working state 3 according to the present invention.

图中，1-步进电机、2-第一皮带轮、3-皮带、4-轴承、5-第二皮带轮、6-卷筒、7-隔板、8-卷材、9-卷簧、10-套筒。In the figure, 1-stepping motor, 2-first pulley, 3-belt, 4-bearing, 5-second pulley, 6-roller, 7-partition, 8-coil, 9-coil spring, 10 -Sleeve.

本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

具体实施方式Detailed ways

应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

需要说明的是，在本发明的描述中，术语“横向”、“纵向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，并不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。It should be noted that in the description of the present invention, the terms "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

本发明提出一种挖掘机侧向倾倒清洁装置。The invention provides a side dumping cleaning device for an excavator.

参照图1至图6，本优选实施例中，一种挖掘机侧向倾倒清洁装置，包括卷筒6、卷簧9、卷材8、套筒10以及驱动装置，其中，1 to 6 , in this preferred embodiment, an excavator side dumping cleaning device includes areel 6, a coil spring 9, a coil 8, asleeve 10 and a driving device, wherein,

套筒10和卷筒6分别固定于货箱的两侧，卷簧9容纳于套筒10中，套筒10上设有缝隙以供卷材8穿过，驱动装置与卷筒6连接以驱动其转动，卷筒6和驱动装置安装于货箱上且均位于货箱隔板的外侧，卷材8的一端穿过货箱上隔板的缝隙（此缝隙宽度和厚度与卷材8相同）与卷筒6固定连接，卷材8的另一端穿过套筒10的缝隙与卷簧9固定连接。Thesleeve 10 and thereel 6 are respectively fixed on both sides of the cargo box, the coil spring 9 is accommodated in thesleeve 10, thesleeve 10 is provided with a gap for the coil 8 to pass through, and the driving device is connected with thereel 6 to drive When it rotates, thereel 6 and the driving device are installed on the cargo box and are located on the outside of the bulkhead of the cargo box. One end of the coil 8 passes through the gap on the bulkhead of the cargo box (the width and thickness of the gap are the same as those of the coil 8) It is fixedly connected to thereel 6 , and the other end of the coil 8 is fixedly connected to the coil spring 9 through the gap of thesleeve 10 .

卷材8与物料接触面为光滑、防粘材料，另一面为非光滑面。卷材8有很好的弯曲度，便于卷入，同时其抗拉伸、强度高。套筒10长度与货箱长度相同。套筒10内部空间可容下全部长度的卷材8。套筒10上有一条缝隙，卷材8可通过缝隙进入货箱。卷材8的宽度与货箱上隔板7的宽度相同。套筒10在货箱上的安装高度高于卷筒6的安装高度，隔板7的缝隙位于货箱中上部，套筒10的缝隙位于顶部，这样预留空间便于物料聚集以拉出卷材8。卷筒6、卷簧9及套筒10长度与货箱纵向长度相同。The contact surface of the coil 8 and the material is a smooth, anti-stick material, and the other side is a non-smooth surface. The coiled material 8 has a good degree of bending, which is easy to be rolled, and at the same time, it has high tensile strength and high strength. Thesleeve 10 is the same length as the cargo box. The inner space of thesleeve 10 can accommodate the entire length of the coil 8 . Thesleeve 10 has a slit through which the coil 8 can enter the cargo box. The width of the coil 8 is the same as the width of the upper partition 7 of the cargo box. The installation height of thesleeve 10 on the cargo box is higher than the installation height of thereel 6, the gap of the partition 7 is located in the upper part of the cargo box, and the gap of thesleeve 10 is located at the top, so that the reserved space is convenient for materials to gather and pull out the coil. 8. The length of thereel 6, the coil spring 9 and thesleeve 10 is the same as the longitudinal length of the cargo box.

进一步地，卷筒6和卷簧9均通过粘连的方式与卷材8可拆卸连接，从而便于将卷材8拆卸以清洗。Further, both thereel 6 and the coil spring 9 are detachably connected to the coil material 8 by means of adhesion, so that the coil material 8 can be easily disassembled for cleaning.

本实施例在此给出一驱动装置的具体结构：驱动装置包括步进电机1、固定于步进电机1输出轴上的第一皮带轮2、固定于卷筒6上的第二皮带轮5以及连接第一皮带轮2和第二皮带轮5的皮带3，两个皮带轮大小可根据传递动力的大小改变，皮带3的长度也可根据步进电机1位置进行灵活设置。步进电机1工作时正转或反转，带动第一皮带轮2转动，通过皮带3传动，带动第二皮带轮5转动，进而驱动卷筒6转动，最终达到卷取卷材8的目的。In this embodiment, the specific structure of a driving device is given here: the driving device includes a stepping motor 1, a first pulley 2 fixed on the output shaft of the stepping motor 1, asecond pulley 5 fixed on thereel 6, and a connecting The size of the belt 3 of the first pulley 2 and thesecond pulley 5 can be changed according to the size of the transmitted power, and the length of the belt 3 can also be flexibly set according to the position of the stepping motor 1 . When the stepping motor 1 works, it rotates forward or reverse, driving the first pulley 2 to rotate, and through the transmission of the belt 3, it drives thesecond pulley 5 to rotate, and then drives thereel 6 to rotate, and finally achieves the purpose of winding the coil 8 .

进一步地，本挖掘机侧向倾倒清洁装置还包括与步进电机1电连接的控制器，该控制器控制步进电机1以分离物料和回位。通过设置控制器，从而实现自动控制分离物料和卷材8的回位。Further, the side dumping cleaning device of the excavator further includes a controller electrically connected with the stepping motor 1 , and the controller controls the stepping motor 1 to separate the materials and return them. By setting the controller, the automatic control of the separation material and the return of the coil 8 can be realized.

具体地，卷筒6的两端均通过轴承4安装于货箱上。卷筒6固定在轴承4的内圈，轴承4安装在货箱的内壁孔上，轴承4外圈与孔为过盈配合。Specifically, both ends of thedrum 6 are mounted on the cargo box through the bearings 4 . Thedrum 6 is fixed on the inner ring of the bearing 4, the bearing 4 is installed on the inner wall hole of the cargo box, and the outer ring of the bearing 4 and the hole are in an interference fit.

套筒10中固定有中心轴，卷簧9套于中心轴上，当卷材8上没有物料时，卷材8在卷簧9的弹力作用下进入套筒10。A central shaft is fixed in thesleeve 10 , and the coil spring 9 is sleeved on the central shaft. When there is no material on the coil 8 , the coil 8 enters thesleeve 10 under the elastic force of the coil spring 9 .

套筒10安装在货箱倾倒侧内壁上方（安装方式包括但不限于焊接），套筒10外壁与货箱内壁之间有间隙以便水和少量物料排出。Thesleeve 10 is installed above the inner wall of the dumping side of the cargo box (installation methods include but not limited to welding).

另外，货箱的外侧壁上固定有盒体（安装方式包括但不限于焊接），驱动装置固定于盒体中。步进电机1固定在盒体上，安装方式包括但不限于螺栓连接。卷筒6一端穿过货箱伸入盒体内，卷筒6另一端插入货箱另一侧内壁的轴承4上以轴向固定。In addition, a box body is fixed on the outer side wall of the cargo box (installation methods include but not limited to welding), and the driving device is fixed in the box body. The stepping motor 1 is fixed on the box body, and the installation method includes but is not limited to bolt connection. One end of thereel 6 extends through the cargo box into the box body, and the other end of thereel 6 is inserted into the bearing 4 on the inner wall of the other side of the cargo box to be axially fixed.

本挖掘机侧向倾倒清洁装置其具体工作过程如下。The specific working process of the side dumping cleaning device of the excavator is as follows.

如图4所示为工作状态1，货箱内盛有物料时，卷筒6上没有卷材8，卷材8从套筒10内伸出，逐渐贴合货箱的三个内壁，随着放置物料增多，卷材8与货箱内壁空隙消除，此时卷材8不再伸出，套筒10内剩余卷材8略多于外部卷材8。Figure 4 shows working state 1. When there is material in the container, there is no coil 8 on thereel 6. The coil 8 protrudes from thesleeve 10 and gradually fits the three inner walls of the container. As more materials are placed, the gap between the coiled material 8 and the inner wall of the container is eliminated. At this time, the coiled material 8 no longer protrudes, and the remaining coiled material 8 in thesleeve 10 is slightly more than the outer coiled material 8 .

如图5所示为工作状态2，货箱倾倒结束。在倾倒过程中，部分卷材8已在卷簧9的弹力作用下进入套筒10，卷材8上物料通过套筒10的间隙进行分离。货箱翻转角度达到最大后，步进电机1开始转动，卷材8通过隔板7的间隙进入卷筒6，物料被隔板7分离后直接落到货箱外，直到套筒10内的卷材8完全被拉出，粘附物料完全分离，步进电机1停止转动。As shown in Figure 5, it is the working state 2, and the dumping of the cargo box is completed. During the pouring process, part of the coiled material 8 has entered thesleeve 10 under the elastic force of the coil spring 9 , and the material on the coiled material 8 is separated through the gap of thesleeve 10 . After the turning angle of the cargo box reaches the maximum, the stepping motor 1 starts to rotate, the coil material 8 enters thereel 6 through the gap of the partition plate 7, and the material is separated by the partition plate 7 and directly falls out of the cargo box until the coil in thesleeve 10. The material 8 is completely pulled out, the adhering material is completely separated, and the stepping motor 1 stops rotating.

如图6所示，为工作状态3，货箱回位，步进电机1反转，卷材8在卷簧9的弹力作用下回到套筒10内，直到卷筒6上无剩余卷材8。此时货箱内卷材8拉直，物料再次进入货箱时，将聚集在卷材8上，由于重力作用，套筒10内卷材8被拉出，进入工作状态1。As shown in Fig. 6, it is working state 3, the cargo box is returned, the stepping motor 1 is reversed, and the coil 8 is returned to thesleeve 10 under the elastic force of the coil spring 9 until there is no remaining coil on thedrum 6. 8. At this time, the coiled material 8 in the container is straightened, and when the material enters the container again, it will gather on the coiled material 8. Due to the action of gravity, the coiled material 8 in thesleeve 10 is pulled out and enters the working state 1.

步进电机1的工作由工作人员操作控制器调控，步进电机1在需要辅助倾倒时启动，根据物料的粘附情况调整步进电机1的转动，以此来达到完全倾倒的目的。该装置按工作状态1、工作状态2、工作状态3的顺序循环进行，货箱每完成一次倾倒，进行一次循环。The work of the stepper motor 1 is regulated by the staff operating the controller. The stepper motor 1 is started when auxiliary dumping is required, and the rotation of the stepper motor 1 is adjusted according to the adhesion of the material, so as to achieve the purpose of complete dumping. The device is cycled in the order of working state 1, working state 2, and working state 3, and a cycle is performed every time the container is dumped.

1、使用步进电机1作为动力装置，用控制器控制其转动。在工作时，可根据物料倾倒情况决定是否启用清洁装置，或者根据情况需要卷材8卷入多少，无需人力操作，整个过程耗时短。1. Use the stepper motor 1 as the power device, and use the controller to control its rotation. When working, it can be decided whether to activate the cleaning device according to the material dumping situation, or how much the coil 8 needs to be rolled in according to the situation, no manual operation is required, and the whole process takes a short time.

2、本侧向倾倒清洁装置可以使倾倒角度再次增大，无需货箱移动，卷筒6转动时，卷材8被拉伸，倾倒角增大，残留物料将会随倾倒角再次增大而被清除，剩余的粘附物料将通过隔板7间隙与卷材8分离，进而完全清除。2. The side dumping cleaning device can increase the dumping angle again without moving the cargo box. When thereel 6 rotates, the coil 8 is stretched, the dumping angle increases, and the residual material will increase with the dumping angle. After being removed, the remaining adhering material will be separated from the coil material 8 through the gap of the separator 7, and then completely removed.

3、使用步进电机1作为动力装置，卷筒6作为传动件，动力装置位于货箱外，节省空间，传动部件少，结构简单，便于安装。3. The stepping motor 1 is used as the power device, thereel 6 is used as the transmission part, and the power device is located outside the cargo box, which saves space, has few transmission parts, and has a simple structure and is easy to install.

本发明进一步提出一种挖掘机。The present invention further provides an excavator.

本优选实施例中，挖掘机包括挖掘机侧向倾倒清洁装置，该侧向倾倒清洁装置的具体结构及有益效果参照上述实施例，在此不再赘述。In this preferred embodiment, the excavator includes a side dumping cleaning device for the excavator. The specific structure and beneficial effects of the side dumping cleaning device refer to the above-mentioned embodiments, and are not repeated here.

以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are the same. Included in the scope of patent protection of the present invention.

Claims

1. A lateral dumping cleaning device of an excavator is characterized by comprising a winding drum, a coil spring, a coiled material, a sleeve and a driving device, wherein,

2. The excavator side dump cleaning apparatus of claim 1 wherein the drum and coil spring are removably attached to the roll by adhesive.

3. The excavator side dump cleaning apparatus of claim 1 wherein the drive means comprises a stepper motor, a first pulley secured to an output shaft of the stepper motor, a second pulley secured to the drum, and a belt connecting the first pulley and the second pulley, the stepper motor being operable to drive the drum in a forward or reverse direction to move the web.

4. The excavator side dump cleaning apparatus of claim 3 further comprising a controller electrically connected to the stepper motor, the controller controlling the stepper motor to separate the material and return.

5. The excavator side dump cleaning apparatus of claim 1 wherein both ends of the drum are mounted to the cargo box by bearings.

6. The excavator side dump cleaning apparatus of claim 1 wherein a central shaft is secured in said sleeve and said coil spring is fitted over said central shaft such that when there is no material on the coil, the coil enters the sleeve under the force of the coil spring.

7. The excavator side dump cleaning apparatus of claim 1 wherein the sleeve is mounted above the dump side inner wall of the cargo box with a gap between the outer wall of the sleeve and the inner wall of the cargo box for drainage of water and small amounts of material.

8. The excavator side dump cleaning apparatus of claim 1 wherein a box is secured to an exterior side wall of the cargo box and the drive means is secured in the box.

9. The excavator side dump cleaning apparatus of any one of claims 1 to 8 wherein the coil has a width equal to the width of the cargo box deck; the mounting height of the sleeve on the container is higher than that of the winding drum.

10. An excavator comprising an excavator side dump cleaning apparatus as claimed in any one of claims 1 to 9.