CN103939108B - Cutting part of hard rock heading machine - Google Patents

Abstract

Translated fromChinese

本发明公开的一种硬岩掘进机截割部，包括截割减速机、截割臂和截割头，其特征在于所述的截割臂与截割减速机通过螺栓固定联接，截割臂主轴与减速器输出轴通过花键联接；所述的截割头包括截割头主轴、行星轮组件、内齿圈、轴承座、旋转密封、密封盖、截割头壳体、截割盘、截齿、截割行星架、分流锥齿组件。这种硬岩掘进机截割部具有截割效率高、可截割的岩层硬度范围广、可靠性高、结构紧凑、体积小的特点，大幅度提高硬岩掘进机的掘进工作效率，极大地降低工人的工作强度，实现煤矿的安全高效生产。

A cutting part of a hard rock roadheader disclosed by the present invention includes a cutting reducer, a cutting arm and a cutting head, and is characterized in that the cutting arm and the cutting reducer are fixedly connected by bolts, and the cutting arm The main shaft and the output shaft of the reducer are connected by splines; the cutting head includes a main shaft of the cutting head, a planetary gear assembly, an inner ring gear, a bearing seat, a rotary seal, a sealing cover, a casing of the cutting head, a cutting disc, Picks, cutting planet carriers, diverter bevel gear assemblies. The cutting part of this hard rock roadheader has the characteristics of high cutting efficiency, wide range of rock hardness that can be cut, high reliability, compact structure, and small volume, which greatly improves the tunneling work efficiency of the hard rock roadheader and greatly Reduce the work intensity of workers and realize the safe and efficient production of coal mines.

Description

Translated fromChinese

硬岩掘进机截割部Hard Rock TBM Cutting Department

技术领域technical field

本发明涉及硬岩掘进技术领域，特别是涉及一种岩石硬度(f10)全岩断面的硬岩掘进机截割部。The invention relates to the technical field of hard rock excavation, in particular to a cutting part of a hard rock excavation machine with a rock hardness (f10) whole rock section.

背景技术Background technique

随着我国大批千万吨级现代化矿井的建设,特别是新井建设中岩石巷道的开拓,对全岩掘进机的需求逐年增加。掘进机是现代矿山巷道快速掘进的关键设备，随着煤层开采，硬度岩石掘进任务越来越多，而硬岩掘进机工作条件恶劣，截割机构是硬岩掘进机的核心部件，其性能好坏直接影响到掘进机的结构强度和使用寿命。现阶段，掘进机在掘进硬岩时出现对硬岩截割失败，或截齿磨损严重，截割机构受到猛烈的冲击，使掘进机的可靠性严重降低，需要工人频繁更换截齿及相关部件，严重制约着掘进机的开机时间，使岩巷掘进效率严重降低，与巷道快速掘进的要求相矛盾，同时工人的工作强度大大提高，难以保证煤矿的安全高效生产。因此，急切需要开展对硬岩掘进机的研究，特别是研制一种新型的、高效的掘进机截割部。With the construction of a large number of 10-million-ton modern mines in our country, especially the development of rock roadways in the construction of new mines, the demand for whole-rock roadheaders is increasing year by year. The roadheader is the key equipment for the rapid excavation of modern mine roadways. With the mining of coal seams, there are more and more hard rock excavation tasks. However, the working conditions of the hard rock roadheader are harsh. The cutting mechanism is the core component of the hard rock roadheader, and its performance is good. Damage directly affects the structural strength and service life of the roadheader. At this stage, when the roadheader is digging hard rock, it fails to cut the hard rock, or the picks are severely worn, and the cutting mechanism is subjected to violent impacts, which seriously reduces the reliability of the roadheader and requires workers to frequently replace the picks and related components. , seriously restricts the start-up time of the roadheader, seriously reduces the efficiency of rock roadway excavation, and contradicts the requirements of fast roadway excavation. At the same time, the work intensity of workers is greatly increased, and it is difficult to ensure safe and efficient production of coal mines. Therefore, there is an urgent need to carry out research on hard rock roadheaders, especially the development of a new and efficient cutting part of roadheaders.

发明内容Contents of the invention

技术问题：本发明的目的是针对已有技术中存在的问题，提供一种结构紧凑、降低截齿磨损、提高工作效率、可靠性高的全岩断面硬岩掘进机截割部。Technical problem: The object of the present invention is to solve the problems existing in the prior art, and provide a cutting section of a full-rock cross-section hard rock roadheader with compact structure, reduced pick wear, improved work efficiency, and high reliability.

技术方案：本发明的硬岩掘进机截割部，包括截割减速机、与截割减速机相连的截割臂、设在截割臂上的截割头，所述的截割头包括截割头主轴、行星轮组件、内齿圈、轴承座、密封盖、截割头壳体、截割盘、截齿、截割行星架、分流锥齿组件，所述的内齿圈和轴承座通过螺栓固定联接在截割臂壳体上，行星轮组件安装在截割行星架上，截割行星架与轴承座之间安装有旋转密封，密封盖通过螺钉固定在截割行星架上，分流锥齿组件安装在截割行星架上，截割头壳体通过螺栓固定在截割行星架上，截割盘安装在截割头壳体斜面上，截齿焊接在截割头壳体前端，分流锥齿组件与截割头主轴啮合。Technical solution: The cutting part of the hard rock roadheader of the present invention includes a cutting reducer, a cutting arm connected with the cutting reducer, and a cutting head arranged on the cutting arm, and the cutting head includes a cutting Cutting head main shaft, planetary gear assembly, inner ring gear, bearing housing, sealing cover, cutting head housing, cutting disc, cutting teeth, cutting planet carrier, splitter bevel gear assembly, the inner ring gear and bearing housing It is fixedly connected to the shell of the cutting arm by bolts, the planetary gear assembly is installed on the cutting planetary frame, and a rotating seal is installed between the cutting planetary frame and the bearing seat, and the sealing cover is fixed on the cutting planetary frame by screws, and the shunt The bevel tooth assembly is installed on the cutting planet carrier, the cutting head housing is fixed on the cutting planet carrier by bolts, the cutting disc is installed on the inclined surface of the cutting head housing, and the pick is welded to the front end of the cutting head housing. The splitter bevel assembly engages the cutter head spindle.

所述的截割盘的个数为4-6个；所述的截割盘包括滚刀、滚刀轴、滚刀盘、密封端盖、刀盘轴、锥齿轮、防尘盖，滚刀安装在滚刀轴上，滚刀轴螺纹固定在滚刀盘上，滚刀盘通过防尘盖固定在刀盘轴上，刀盘轴通过轴承安装在截割头壳体上，密封端盖设在截割头壳体上，安装在密封端盖内设有唇形密封圈，刀盘轴与锥齿轮花键联接，锥齿轮与分流锥齿组件相啮合实现截割盘的自转与公转；所述的滚刀和滚刀盘的刃面镀有硬质合金。The number of the cutting disks is 4-6; the cutting disks include a hob, a hob shaft, a hob, a sealing end cover, a cutter shaft, a bevel gear, a dust cover, a hob Installed on the hob shaft, the hob shaft is screwed on the hob head, the hob head is fixed on the cutter head shaft through the dust cover, the cutter head shaft is installed on the cutting head shell through the bearing, and the sealing end cover is set On the cutting head shell, a lip seal ring is installed in the sealing end cover, the cutterhead shaft is splined with the bevel gear, and the bevel gear is meshed with the diverter bevel gear assembly to realize the rotation and revolution of the cutting disc; The blade faces of the hobs and hobs described above are coated with carbide.

有益效果：由于采用了上述技术方案，本发明将传统的单个截齿与硬岩的点接触转变成滚刀与滚刀盘的线接触，既充分应用了刀具的刃性，又降低了刀具的受力，实现对硬岩的有效破碎，同时的刀具的磨损大大降低，而且截割头端部的截齿充分利用截割盘工作时产生的裂纹，对硬岩进行破碎，而不至于产生较大的受力，降低截割头端部的截齿的磨损，因此这种硬岩掘进机截割部具有其截割效率高、可截割的岩层硬度范围广、可靠性高、结构紧凑、体积小的特点，大幅度提高硬岩掘进机的掘进工作效率，极大地降低工人的工作强度。Beneficial effects: due to the adoption of the above technical scheme, the present invention transforms the traditional point contact between a single pick and the hard rock into a line contact between the hob and the hob, which not only fully utilizes the cutting edge of the cutter, but also reduces the cutting edge of the cutter. Forced to achieve effective crushing of hard rock, while the wear of the tool is greatly reduced, and the picks at the end of the cutting head make full use of the cracks generated when the cutting disc is working to crush the hard rock without causing serious damage. Large force can reduce the wear of the pick at the end of the cutting head, so the cutting part of this hard rock roadheader has the advantages of high cutting efficiency, wide range of rock hardness that can be cut, high reliability, compact structure, The small size greatly improves the working efficiency of the hard rock roadheader and greatly reduces the work intensity of the workers.

附图说明Description of drawings

图1是本发明的硬岩掘进机截割部剖视图；Fig. 1 is a sectional view of the cutting part of the hard rock roadheader of the present invention;

图2是本发明的截割头剖视图；Fig. 2 is a sectional view of the cutting head of the present invention;

图3是本发明的截割盘剖视图。Figure 3 is a cross-sectional view of the cutting disk of the present invention.

图中：1、截割减速机；2、截割臂；3、截割头；3-1、截割头主轴；3-2、行星轮组件；3-3、内齿圈；3-4、轴承座；3-5、旋转密封；3-6、密封盖；3-7、截割头壳体；3-8、截割盘；3-9、截齿；3-10、截割行星架；3-11、分流锥齿组件；3-8-1、滚刀；3-8-2、滚刀轴；3-8-3、滚刀盘；3-8-4、密封端盖；3-8-5、唇形密封圈；3-8-6、刀盘轴；3-8-7、锥齿轮；3-8-8、防尘盖。In the figure: 1. Cutting reducer; 2. Cutting arm; 3. Cutting head; 3-1. Main shaft of cutting head; 3-2. Planetary gear assembly; 3-3. Ring gear; 3-4 , bearing seat; 3-5, rotary seal; 3-6, sealing cover; 3-7, cutting head shell; 3-8, cutting disc; 3-9, pick; 3-10, cutting planet Frame; 3-11, diverter bevel gear assembly; 3-8-1, hob; 3-8-2, hob shaft; 3-8-3, hob disc; 3-8-4, sealing end cover; 3-8-5, lip seal ring; 3-8-6, cutter shaft; 3-8-7, bevel gear; 3-8-8, dust cover.

具体实施方式：detailed description:

下面结合附图对本发明的一个实施例作进一步的描述：An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

如图1所示，本发明的硬岩掘进机截割部，主要由截割减速机1、截割臂2和截割头3构成，所述的截割臂2与截割减速机1通过螺栓固定联接，截割臂主轴与减速器输出轴通过花键联接，截割头主轴3-1与截割臂主轴通过花键联接。As shown in Figure 1, the cutting section of the hard rock roadheader of the present invention is mainly composed of a cutting reducer 1, a cutting arm 2 and a cutting head 3, and the cutting arm 2 and the cutting reducer 1 pass through The bolts are fixedly connected, the main shaft of the cutting arm is connected with the output shaft of the reducer through a spline, and the main shaft of the cutting head 3-1 is connected with the main shaft of the cutting arm through a spline.

如图2所示，所述的截割头3包括截割头主轴3-1、行星轮组件3-2、内齿圈3-3、轴承座3-4、旋转密封3-5、密封盖3-6、截割头壳体3-7、截割盘3-8、截齿3-9、截割行星架3-10、分流锥齿组件3-11，内齿圈3-3和轴承座3-4通过螺栓固定联接在截割臂壳体上，行星轮组件3-2安装在截割行星架3-10上，截割行星架3-10与轴承座3-4之间安装旋转密封3-5，密封盖3-6通过螺钉固定在截割行星架3-10，分流锥齿组件3-11安装在截割行星架3-10上，截割头壳体3-7通过螺栓固定在截割行星架3-10上，截割盘3-8安装在截割头壳体3-7斜面上，截齿3-9焊接在截割头壳体3-7前端，分流锥齿组件3-11与截割头主轴3-1啮合。As shown in Figure 2, the cutting head 3 includes a cutting head main shaft 3-1, a planetary gear assembly 3-2, an inner ring gear 3-3, a bearing seat 3-4, a rotary seal 3-5, and a sealing cover 3-6, cutting head housing 3-7, cutting disc 3-8, pick 3-9, cutting planet carrier 3-10, diverter bevel gear assembly 3-11, inner ring gear 3-3 and bearing Seat 3-4 is fixedly connected to the shell of the cutting arm by bolts, the planetary gear assembly 3-2 is installed on the cutting planet carrier 3-10, and the cutting planet carrier 3-10 is installed and rotated between the bearing seat 3-4 The seal 3-5, the seal cover 3-6 is fixed on the cutting planet carrier 3-10 by screws, the splitter bevel gear assembly 3-11 is installed on the cutting planet carrier 3-10, and the cutting head housing 3-7 is fixed by bolts Fixed on the cutting planet carrier 3-10, the cutting disc 3-8 is installed on the inclined surface of the cutting head housing 3-7, the cutting teeth 3-9 are welded on the front end of the cutting head housing 3-7, and the diverter cone teeth Assembly 3-11 engages with cutter head spindle 3-1.

如图3所示，所述的截割盘3-8包括滚刀3-8-1、滚刀轴3-8-2、滚刀盘3-8-3、密封端盖3-8-4、唇形密封圈3-8-5、刀盘轴3-8-6、锥齿轮3-8-7、防尘盖3-8-8，滚刀3-8-1安装在滚刀轴3-8-2上，滚刀轴3-8-2螺纹固定在滚刀盘3-8-3，滚刀盘3-8-3通过防尘盖3-8-8固定在刀盘轴3-8-6上，刀盘轴3-8-6通过轴承安装在截割头壳体3-7上，密封端盖3-8-4通过螺钉固定在截割头壳体3-7上，唇形密封圈3-8-5安装在密封端盖3-8-4上，刀盘轴3-8-6与锥齿轮3-8-7通过花键联接，锥齿轮3-8-7与分流锥齿组件3-11啮合，以实现截割盘3-8的自转与公转。As shown in Figure 3, the cutting disc 3-8 includes a hob 3-8-1, a hob shaft 3-8-2, a hob disc 3-8-3, and a sealing end cover 3-8-4 , lip seal ring 3-8-5, cutter shaft 3-8-6, bevel gear 3-8-7, dust cover 3-8-8, hob 3-8-1 installed on hob shaft 3 On -8-2, the hob shaft 3-8-2 is screwed to the hob 3-8-3, and the hob 3-8-3 is fixed to the hob shaft 3-8 through the dust cover 3-8-8. 8-6, the cutter head shaft 3-8-6 is installed on the cutting head housing 3-7 through bearings, and the sealing end cover 3-8-4 is fixed on the cutting head housing 3-7 by screws, and the lip The sealing ring 3-8-5 is installed on the sealing end cover 3-8-4, the cutter head shaft 3-8-6 is connected with the bevel gear 3-8-7 through a spline, and the bevel gear 3-8-7 is connected with the shunt The bevel tooth assembly 3-11 is engaged to realize the rotation and revolution of the cutting disc 3-8.

工作原理：电机将动力通过截割减速机1经截割臂主轴之后传递给截割头主轴3-1，通过截割头主轴3-1再将动力传递给截割头行星减速机构和分流锥齿组件3-11，使固定在截割行星架3-10上的截割头壳体3-7进行转动，同时分流锥齿组件3-11带动截割盘3-8转动，实现截割盘3-8的自转与公转。具有截割效率高、可截割的岩层硬度范围广、可靠性高、结构紧凑、体积小的特点，大幅度提高硬岩掘进机的掘进工作效率，极大地降低工人的工作强度。Working principle: The motor transmits the power to the cutting head main shaft 3-1 through the cutting reducer 1 through the cutting arm main shaft, and then transmits the power to the cutting head planetary reduction mechanism and the splitter cone through the cutting head main shaft 3-1 The tooth assembly 3-11 rotates the cutting head housing 3-7 fixed on the cutting planet carrier 3-10, and simultaneously the splitter bevel tooth assembly 3-11 drives the cutting disc 3-8 to rotate to realize the cutting disc 3-8 rotation and revolution. It has the characteristics of high cutting efficiency, wide range of rock hardness that can be cut, high reliability, compact structure and small size, which greatly improves the driving efficiency of hard rock roadheaders and greatly reduces the work intensity of workers.

以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (2)

1. a hard rock mole cutting units, comprise cut reductor (1), the cutting arm (2) be connected with cut reductor (1), be located at the cutterhead (3) on cutting arm (2), it is characterized in that: described cutterhead (3) comprises cutterhead main shaft (3-1), planetary wheeling assembly (3-2), ring gear (3-3), bearing support (3-4), seal cover (3-6), cutterhead housing (3-7), cutting disc (3-8), pick (3-9), cut planet carrier (3-10), spreader tooth assembly (3-11), described ring gear (3-3) and bearing support (3-4) are bolted and are connected on cutting arm housing, planetary wheeling assembly (3-2) is arranged on cut planet carrier (3-10), rotatory sealing (3-5) is installed between cut planet carrier (3-10) and bearing support (3-4), seal cover (3-6) is fixed by screws on cut planet carrier (3-10), spreader tooth assembly (3-11) is arranged on cut planet carrier (3-10), cutterhead housing (3-7) is bolted on cut planet carrier (3-10), the number of described cutting disc (3-8) is 4-6, cutting disc (3-8) is arranged on cutterhead housing (3-7) inclined-plane, pick (3-9) is welded on cutterhead housing (3-7) front end, spreader tooth assembly (3-11) engages with cutterhead main shaft (3-1),

Described cutting disc (3-8) comprises hobboing cutter (3-8-1), cutter shaft (3-8-2), hob plate (3-8-3), end cover (3-8-4), cutter axis (3-8-6), bevel gear (3-8-7), dust cap (3-8-8), hobboing cutter (3-8-1) is arranged on cutter shaft (3-8-2), cutter shaft (3-8-2) screw thread is fixed on hob plate (3-8-3), hob plate (3-8-3) is fixed on cutter axis (3-8-6) by dust cap (3-8-8), cutter axis (3-8-6) is arranged on cutterhead housing (3-7) by bearing, end cover (3-8-4) is located on cutterhead housing (3-7), be arranged in end cover (3-8-4) and be provided with lip-type packing (3-8-5), cutter axis (3-8-6) and bevel gear (3-8-7) splined, bevel gear (3-8-7) is meshed with spreader tooth assembly (3-11), realize rotation and the revolution of cutting disc (3-8).

2. hard rock mole cutting units according to claim 1, is characterized in that: described hobboing cutter (3-8-1) and the sword face of hob plate (3-8-3) are coated with carbide alloy.