技术领域technical field
本发明涉及抛光设备技术领域，特别涉及一种砂带抛光机。The invention relates to the technical field of polishing equipment, in particular to an abrasive belt polishing machine.
背景技术Background technique
钢管表面抛光是光亮管生产重要的环节之一，在抛光过程中，主轴带着大盘旋转，旋转接头由于要接外界的压缩空气管道而不能旋转，因此在旋转接头与主轴之间产生非常大的摩擦。旋转接头与主轴摩擦后，旋转接头常常由于密封圈容易损坏而出现漏气的问题，导致压缩空气无法大量到达大盘上的气缸，造成气缸不工作或气缸压持力不够，影响钢管表面抛光质量，而且会造成主轴的损伤。Steel pipe surface polishing is one of the important links in the production of bright tubes. During the polishing process, the main shaft rotates with the large plate, and the rotary joint cannot rotate because it needs to be connected to the external compressed air pipeline, so there is a very large gap between the rotary joint and the main shaft. friction. After the rotary joint rubs against the main shaft, the rotary joint often has air leakage problems due to the easy damage of the sealing ring, resulting in a large amount of compressed air not being able to reach the cylinder on the large plate, causing the cylinder to not work or the pressure of the cylinder is not enough, affecting the surface polishing quality of the steel pipe. And it will cause damage to the spindle.
而且一旦出现此种现象，通过简单零件更换无法确保使用，由于旋转接头在主轴中部，拆装难度大，每次拆下后主轴都有不同程度的损伤，修复难度大，修复效果不确定因素多，常出现反复修理的现象发生，造成生产延误，维修强度高。Moreover, once this phenomenon occurs, it cannot be guaranteed to be used through simple parts replacement. Since the rotary joint is in the middle of the main shaft, it is difficult to disassemble and assemble. Every time the main shaft is disassembled, the main shaft will be damaged to varying degrees. It is difficult to repair and there are many uncertain factors in the repair effect. , The phenomenon of repeated repairs often occurs, resulting in production delays and high maintenance intensity.
发明内容Contents of the invention
本发明的目的是提供一种砂带抛光机，解决旋转接头拆装、维修不方便的问题。The object of the present invention is to provide an abrasive belt polishing machine to solve the problem of inconvenient disassembly and maintenance of the rotary joint.
本发明的上述目的是通过以下技术方案得以实现的：一种砂带抛光机，包括主轴和旋转接头，所述主轴内设置有第一气路通道，所述旋转接头包括固定体和转动体，所述固定体套装在转动体外侧且两者相对转动，所述固定体上设置有高压气体连接孔，所述转动体设置在主轴的端部并与主轴同步转动，所述转动体内设置有至少两条第二气路通道，每条第二气路通道分布与对应的第一气路通道连通；所述固定体上设置有环设于转动体外侧的凹槽，所述凹槽与转动体的外壁形成一环形的密封腔体，所述高压气体连接孔分别与对应的凹槽连通，所述转动体上设置有通气孔，每条第二气路通道分别与对应的凹槽通过通气孔连通。The above object of the present invention is achieved by the following technical solutions: an abrasive belt polishing machine, comprising a main shaft and a rotary joint, the main shaft is provided with a first air channel, and the rotary joint includes a fixed body and a rotating body, The fixed body is set on the outside of the rotating body and the two rotate relatively. The fixed body is provided with a high-pressure gas connection hole. The rotating body is arranged at the end of the main shaft and rotates synchronously with the main shaft. The rotating body is provided with at least Two second air passages, each second air passage is distributed and communicated with the corresponding first air passage; the fixed body is provided with a groove ringed on the outside of the rotating body, and the groove is connected to the rotating body The outer wall of the outer wall forms a ring-shaped sealed cavity, the high-pressure gas connection holes communicate with the corresponding grooves, the rotating body is provided with vent holes, and each second gas channel is respectively connected to the corresponding groove through the vent holes connected.
作为优选，所述主轴内设置有轴向贯穿的第一通孔，所述转动体内设置有轴向贯穿的第二通孔，所述第一通孔与第二通孔同轴设置且相互连通。Preferably, a first through hole axially penetrating is provided in the main shaft, a second through hole axially penetrating is provided in the rotating body, and the first through hole and the second through hole are arranged coaxially and communicate with each other .
作为优选，所述主轴与旋转接头之间设置有过渡接头，所述过渡接头的一端固定在主轴端部，另一端固定在转动体端部，所述过渡接头内设置有轴向贯穿的第三气路通道和第三通孔，第三气路通道连通于第一气路通道与第二气路通道，所述第三通孔连通于第一通孔与第二通孔。Preferably, a transition joint is provided between the main shaft and the rotary joint, one end of the transition joint is fixed on the end of the main shaft, and the other end is fixed on the end of the rotating body, and a third axially penetrating joint is arranged in the transition joint. The air channel and the third through hole, the third air channel communicates with the first air channel and the second air channel, and the third through hole communicates with the first through hole and the second through hole.
作为优选，所述第三通孔内设置有导向套，所述导向套的内径由主轴到旋转接头方向逐渐增大。Preferably, a guide sleeve is provided in the third through hole, and the inner diameter of the guide sleeve gradually increases from the main shaft to the rotary joint.
作为优选，所述第一通孔内设置有空心护管。Preferably, a hollow protective tube is arranged in the first through hole.
作为优选，所述固定体与转动体之间设置有密封结构，所述密封结构位于凹槽的轴向两侧。Preferably, a sealing structure is provided between the fixed body and the rotating body, and the sealing structure is located on both axial sides of the groove.
作为优选，所述密封结构包括密封圈，所述密封圈固定在固定体的内壁上。Preferably, the sealing structure includes a sealing ring, and the sealing ring is fixed on the inner wall of the fixed body.
作为优选，所述转动体的外壁设置有与密封圈贴合的耐磨层，所述耐磨层为陶瓷。Preferably, the outer wall of the rotating body is provided with a wear-resistant layer bonded to the sealing ring, and the wear-resistant layer is made of ceramics.
旋转接头在工作工程中，转动体相对密封圈和固定体转动，密封圈的内圈壁与转动体摩擦而使转动体或密封圈磨损，从而逐渐失去密封效果，而陶瓷具有高耐磨性，线膨胀系数低，具有良好的尺寸稳定性，从而保证稳定的密封性能。During the working process of the rotary joint, the rotating body rotates relative to the sealing ring and the fixed body, and the inner wall of the sealing ring rubs against the rotating body to wear the rotating body or the sealing ring, thus gradually losing the sealing effect, while ceramics have high wear resistance, The linear expansion coefficient is low and has good dimensional stability, thus ensuring stable sealing performance.
作为优选，所述固定体与转动体之间设置有冷却结构，所述冷却结构位于凹槽同一侧的相邻两组密封结构之间。Preferably, a cooling structure is provided between the fixed body and the rotating body, and the cooling structure is located between two adjacent sets of sealing structures on the same side of the groove.
该冷却结构能够对转动体的外壁进行冷却降温，改善旋转接头发热、密封件老化的问题。The cooling structure can cool down the outer wall of the rotating body, and improve the problems of heating of the rotary joint and aging of the sealing member.
作为优选，所述冷却结构包括设置在固定体的冷却槽，所述冷却槽环设于转动体外侧。Preferably, the cooling structure includes a cooling groove arranged on the fixed body, and the cooling groove is arranged on the outer side of the rotating body.
本发明具有以下有益效果：The present invention has the following beneficial effects:
1、本发明将现有技术中安装在主轴中部的旋转接头安装到主轴的端部，方便拆装和后期维修；1. The present invention installs the rotary joint installed in the middle of the main shaft in the prior art to the end of the main shaft, which is convenient for disassembly and later maintenance;
2、转动体外壁设置的陶瓷耐磨层，改善了密封形式，使得旋转接头可以保持长期运行而不出现密封件磨损漏气的情况，从而保证了设备的长期稳定运行；2. The ceramic wear-resistant layer set on the outer wall of the rotating body improves the sealing form, so that the rotary joint can maintain long-term operation without seal wear and leakage, thus ensuring the long-term stable operation of the equipment;
3、两组密封结构之间设置的冷却结构能够有效改善旋转接头发热、密封件老化严重的问题，进一步提高旋转接头的使用寿命。3. The cooling structure provided between the two sets of sealing structures can effectively improve the problems of heat generation of the rotary joint and serious aging of the seals, and further improve the service life of the rotary joint.
附图说明Description of drawings
图1是本发明实施例的结构示意图；Fig. 1 is the structural representation of the embodiment of the present invention;
图2是本发明实施例中旋转接头的剖视图；Fig. 2 is a cross-sectional view of a rotary joint in an embodiment of the present invention;
图3是图2中A-A处的剖视图；Fig. 3 is the sectional view of A-A place among Fig. 2;
图中：1-主轴，101-第一通孔，102-第一气路通道，2-过渡接头，201-第三通孔，202-第三气路通道，3-旋转接头，301-固定体，302-转动体，303-第二通孔，304-第二气路通道，305-通气孔，306-凹槽，307-高压气体连接孔，308-密封圈，309-冷却液进出孔，4-空心护管，5-导向套。In the figure: 1-spindle, 101-first through hole, 102-first air channel, 2-transition joint, 201-third through hole, 202-third air channel, 3-rotary joint, 301-fixed Body, 302-rotating body, 303-second through hole, 304-second air channel, 305-ventilation hole, 306-groove, 307-high pressure gas connection hole, 308-sealing ring, 309-coolant inlet and outlet hole , 4-hollow protective tube, 5-guiding sleeve.
具体实施方式Detailed ways
以下结合附图对本发明作进一步的详细说明。The present invention will be further described in detail below in conjunction with the accompanying drawings.
本具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后，可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的权利要求范围内都受到专利法的保护。This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contribution as required, but as long as they are within the scope of the present invention All claims are protected by patent law.
实施例：如图1、图2和图3所示，一种砂带抛光机，包括主轴1、过渡接头2和旋转接头3，主轴1为空心轴，主轴1的中心设置有轴向贯穿的第一通孔101。旋转接头3位于主轴1的端部，主轴1的另一端安装有大盘和由气缸驱动的打磨头，主轴1通过轴承座水平安装在机架上，旋转接头3连接压缩空气发生器，如高压气泵。Embodiment: As shown in Figure 1, Figure 2 and Figure 3, an abrasive belt polishing machine includes a main shaft 1, a transition joint 2 and a rotary joint 3, the main shaft 1 is a hollow shaft, and the center of the main shaft 1 is provided with an axially penetrating The first through hole 101. The rotary joint 3 is located at the end of the main shaft 1, and the other end of the main shaft 1 is equipped with a large disc and a grinding head driven by an air cylinder. The main shaft 1 is horizontally installed on the frame through the bearing seat, and the rotary joint 3 is connected with a compressed air generator, such as a high-pressure air pump .
如图2所示，旋转接头3包括固定体301和转动体302，固定体301套装在转动体302外侧，并通过转轴安装在转动体302上，两者相对转动。其中转动体302与主轴1同轴设置并且与主轴1同步转动。As shown in FIG. 2 , the rotary joint 3 includes a fixed body 301 and a rotating body 302 . The fixed body 301 is sleeved on the outside of the rotating body 302 and mounted on the rotating body 302 through a rotating shaft, and the two rotate relatively. The rotating body 302 is arranged coaxially with the main shaft 1 and rotates synchronously with the main shaft 1 .
过渡接头2连接在主轴1与转动体302之间，过渡接头2的一端固定在主轴1端部，另一端通过法兰盘固定在转动体302端部。转动体302内设置有轴向贯穿的第二通孔303，过渡接头2内设置轴向贯穿的第三通孔201，第一通孔101、第二通孔303与第三通孔201三者同轴设置且依次连通。在打磨时，钢管依次穿过第二通孔303、第三通孔201和第一通孔101后进入打磨区域。第三通孔201内设置有管状的导向套5，导向套5的内径由主轴1到旋转接头3方向逐渐增大，方便钢管从旋转接头3进入主轴1内。第一通孔101内设置有空心护管4，空心护管4的内径大于或等于导向套5的内径。The transition joint 2 is connected between the main shaft 1 and the rotating body 302, one end of the transition joint 2 is fixed on the end of the main shaft 1, and the other end is fixed on the end of the rotating body 302 through a flange. The rotating body 302 is provided with a second through hole 303 axially penetrating, and the transition joint 2 is provided with a third through hole 201 axially penetrating. The first through hole 101 , the second through hole 303 and the third through hole 201 Coaxial arrangement and sequential connection. During grinding, the steel pipe enters the grinding area after passing through the second through hole 303 , the third through hole 201 and the first through hole 101 in sequence. A tubular guide sleeve 5 is provided in the third through hole 201 , and the inner diameter of the guide sleeve 5 gradually increases from the main shaft 1 to the rotary joint 3 , so that the steel pipe enters the main shaft 1 from the rotary joint 3 . A hollow protective tube 4 is disposed in the first through hole 101 , and the inner diameter of the hollow protective tube 4 is greater than or equal to the inner diameter of the guide sleeve 5 .
如图1所示，主轴1内设置有两条第一气路通道102，第一气路通道102轴向贯穿主轴1的两端，其中一条第一气路通道102为大盘上的气缸提供压缩空气，另一条第一气路通道102为气缸泄压时排出压缩空气。转动体302内设置有第二气路通道304，第二气路通道304轴向贯穿转动体302的一端，该端为与过渡接头2相连的一端。过渡接头2内设置有第三气路通道202，第三气路通道202轴向贯穿过渡接头2。其中第一气路通道102、第二气路通道304和第三气路通道202数量相等，且一一对应连接，第一气路通道102与第二气路通道304由第三气路通道202连通。As shown in Figure 1, two first air passages 102 are arranged in the main shaft 1, and the first air passages 102 run through both ends of the main shaft 1 in the axial direction, and one of the first air passages 102 provides compression for the cylinder on the large disk. Air, the other first air channel 102 is used to discharge compressed air when the cylinder is depressurized. A second air channel 304 is disposed inside the rotating body 302 , and the second air channel 304 axially penetrates one end of the rotating body 302 , which is the end connected to the transition joint 2 . A third air channel 202 is arranged in the transition joint 2 , and the third air channel 202 axially penetrates the transition joint 2 . Wherein the first gas path channel 102, the second gas path channel 304 and the third gas path channel 202 are equal in number and connected in one-to-one correspondence, the first gas path channel 102 and the second gas path channel 304 are connected by the third gas path channel 202 connected.
固定体301上设置有环设于转动体302外侧的凹槽306，凹槽306与转动体302的外壁形成一环形的密封腔体。凹槽306的数量与第二气路通道304的数量相等，并沿转动体302的轴向分布。The fixed body 301 is provided with a groove 306 surrounding the outer side of the rotating body 302 , and the groove 306 forms an annular sealed cavity with the outer wall of the rotating body 302 . The number of the grooves 306 is equal to the number of the second air passages 304 and distributed along the axial direction of the rotor 302 .
转动体302上设置有通气孔305，每条第二气路通道304分别与对应的凹槽306通过通气孔305连通，每条第二气路通道304对应一个通气孔305。当转动体302相对固定体301转动时，通气孔305沿着凹槽306转动，始终与凹槽306保持连通状态。The rotating body 302 is provided with vent holes 305 , and each second air channel 304 communicates with the corresponding groove 306 through the vent holes 305 , and each second air channel 304 corresponds to a vent hole 305 . When the rotating body 302 rotates relative to the fixed body 301 , the air hole 305 rotates along the groove 306 and keeps communicating with the groove 306 all the time.
固定体301上设置两个有高压气体连接孔307，高压气体连接孔307与凹槽306和气路通道的数量相等，沿转动体302的轴向分布，每个高压气体连接孔307分别与对应的凹槽306连通。在加压时其中一个高压气体连接孔307用于输入压缩空气，使压缩空气通过其中一个通气孔305进入到其中一条第二气路通道304内，然后经过对应的一条第三气路通道202后进入对应的一条第一气路通道102，最后到达主轴1另一端大盘上的气缸，使打磨头在钢管表面加压打磨；在泄压时，另一条第一气路通道102内的压缩空气进入另一条第二气路通道304，经对应的另一个高压气体连接孔307来排出压缩空气。Two high-pressure gas connection holes 307 are arranged on the fixed body 301. The number of high-pressure gas connection holes 307 is equal to that of the grooves 306 and gas passages, and they are distributed along the axial direction of the rotating body 302. Each high-pressure gas connection hole 307 is respectively connected to the corresponding The groove 306 communicates. When pressurizing, one of the high-pressure gas connection holes 307 is used to input compressed air, so that the compressed air enters one of the second air passages 304 through one of the vent holes 305, and then passes through a corresponding third air passage 202. Enter the corresponding first air channel 102, and finally reach the cylinder on the other end of the main shaft 1, so that the grinding head is pressurized and polished on the steel pipe surface; when the pressure is released, the compressed air in the other first air channel 102 enters Another second air channel 304 discharges compressed air through another corresponding high-pressure gas connection hole 307 .
在本实施例中，第一气路通道102、第二气路通道304和第三气路通道202数量均为两条，对一组气缸进行加压和泄压。在另一实施例中，第一气路通道102、第二气路通道304和第三气路通道202数量为四条，对两组压缩气缸进行加压和泄压。In this embodiment, the number of the first air channel 102 , the second air channel 304 and the third air channel 202 are two, which pressurize and depressurize a group of cylinders. In another embodiment, the number of the first air channel 102 , the second air channel 304 and the third air channel 202 is four, which pressurize and depressurize two groups of compressed air cylinders.
如图2所示，固定体301与转动体302之间设置有密封结构，密封结构位于凹槽306的轴向两侧。密封结构包括密封圈308，密封圈308固定在固定体301的内壁上，密封圈308的内圈壁贴合在转动体302的外壁。转动体302的外壁设置有与密封圈308贴合的耐磨层，耐磨层为陶瓷。As shown in FIG. 2 , a sealing structure is provided between the fixed body 301 and the rotating body 302 , and the sealing structures are located on both axial sides of the groove 306 . The sealing structure includes a sealing ring 308 , the sealing ring 308 is fixed on the inner wall of the fixed body 301 , and the inner ring wall of the sealing ring 308 is attached to the outer wall of the rotating body 302 . The outer wall of the rotating body 302 is provided with a wear-resistant layer attached to the sealing ring 308, and the wear-resistant layer is made of ceramics.
固定体301与转动体302之间设置有冷却结构，冷却结构位于凹槽306同一侧的相邻两组密封结构之间。冷却结构包括设置在固定体301内壁上的冷却槽309，冷却槽309环设于转动体302外侧，固定体301设置有冷却液进出孔309，每个冷却槽309均连通两个冷却液进出孔309。通过冷却液的循环流动，对转动体的外壁进行冷却降温，改善旋转接头发热、密封件老化的问题。A cooling structure is provided between the fixed body 301 and the rotating body 302 , and the cooling structure is located between two adjacent sets of sealing structures on the same side of the groove 306 . The cooling structure includes a cooling groove 309 arranged on the inner wall of the fixed body 301. The cooling groove 309 is arranged around the outer side of the rotating body 302. The fixed body 301 is provided with cooling liquid inlet and outlet holes 309, and each cooling groove 309 is connected to two cooling liquid inlet and outlet holes. 309. Through the circulating flow of cooling liquid, the outer wall of the rotating body is cooled to reduce the temperature, and the problems of heat generation and aging of the sealing parts of the rotary joint are improved.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821037.3ACN110561241B (en) | 2019-09-02 | 2019-09-02 | A belt polishing machine |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821037.3ACN110561241B (en) | 2019-09-02 | 2019-09-02 | A belt polishing machine |
| Publication Number | Publication Date |
|---|---|
| CN110561241Atrue CN110561241A (en) | 2019-12-13 |
| CN110561241B CN110561241B (en) | 2021-07-09 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821037.3AActiveCN110561241B (en) | 2019-09-02 | 2019-09-02 | A belt polishing machine |
| Country | Link |
|---|---|
| CN (1) | CN110561241B (en) |
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| CN110561241B (en) | 2021-07-09 |
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| TR01 | Transfer of patent right | Effective date of registration:20250513 Address after:313012 Zhejiang Province Hangzhou City Shuanglin Town Zhenxi Patentee after:ZHEJIANG JIULI HI-TECH METALS Co.,Ltd. Country or region after:China Patentee after:HUZHOU JIULI YONGXING SPECIAL ALLOY MATERIAL CO.,LTD. Address before:313000 Zhejiang Province, Huzhou city Nanxun District Shuanglin Town West Patentee before:ZHEJIANG JIULI HI-TECH METALS Co.,Ltd. Country or region before:China | |
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