CN209349960U - A sealing structure for the main shaft pulley of the main shaft box of a lathe - Google Patents
A sealing structure for the main shaft pulley of the main shaft box of a lathe Download PDFInfo
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- CN209349960U CN209349960U CN201920113425.1U CN201920113425U CN209349960U CN 209349960 U CN209349960 U CN 209349960U CN 201920113425 U CN201920113425 U CN 201920113425U CN 209349960 U CN209349960 U CN 209349960U
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000000314 lubricant Substances 0.000 claims abstract 14
- 125000006850 spacer group Chemical group 0.000 claims description 20
- 230000001050 lubricating effect Effects 0.000 claims description 11
- 239000003921 oil Substances 0.000 abstract description 58
- 239000010687 lubricating oil Substances 0.000 abstract description 45
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
技术领域technical field
本实用新型属于机械技术领域，尤其涉及一种车床主轴箱主轴带轮密封结构。The utility model belongs to the technical field of machinery, in particular to a sealing structure of a main shaft pulley of a lathe main shaft box.
背景技术Background technique
本实用新型涉及机械制造行业，公开了一种车床主轴箱主轴带轮密封结构的改进。在机械制造行业，多数车床的主轴箱传动多采用皮带传动，主轴与皮带轮连接为变速箱箱体结构。这种主轴箱结构具有过载保护、载荷均匀及减少振动的特点，采用稀油润滑。但是长期使用发现带轮与主轴连接部位出现漏油现象，既严重污染环境，又浪费大量油品。The utility model relates to the machinery manufacturing industry, and discloses an improvement of a sealing structure of a main shaft pulley of a lathe main shaft box. In the machinery manufacturing industry, the main shaft box transmission of most lathes is mostly driven by a belt, and the main shaft and the pulley are connected to form a gearbox box structure. This headstock structure has the characteristics of overload protection, uniform load and reduced vibration, and is lubricated with thin oil. However, long-term use has found that oil leakage occurs at the joint between the pulley and the main shaft, which seriously pollutes the environment and wastes a large amount of oil.
参看图1，现有主轴箱结构整个结构零件较多，但密封部位较少，带轮与转动套接触部位无密封措施，下部迷宫法兰与带轮接触部位无密封措施，没有密封元件进行隔离密封，零件之间刚性接触，润滑油从零件接触面缝隙向外漏油，导致接触部位渗油。整个结构回油口仅有一个，出油口少，润滑油回油速度慢，整个油路不畅通，迫使润滑油从其它接触面部位渗漏。Referring to Figure 1, there are many structural parts in the existing headstock structure, but there are few sealing parts, there is no sealing measure for the contact part between the pulley and the rotating sleeve, there is no sealing measure for the contact part between the lower labyrinth flange and the pulley, and there is no sealing element for isolation Sealing, rigid contact between parts, lubricating oil leaks from the gap of the contact surface of the parts, resulting in oil leakage from the contact parts. There is only one oil return port in the whole structure, there are few oil outlets, the oil return speed of lubricating oil is slow, and the whole oil circuit is not smooth, forcing the lubricating oil to leak from other contact surface positions.
实用新型内容Utility model content
本实用新型要解决的技术问题是提供一种车床主轴箱主轴带轮密封结构，以解决润滑油渗漏的问题。The technical problem to be solved by the utility model is to provide a lathe headstock main shaft pulley sealing structure to solve the problem of lubricating oil leakage.
为解决上述问题，本实用新型的技术方案为：For solving the problems referred to above, the technical scheme of the utility model is:
本实用新型的一种车床主轴箱主轴带轮密封结构，包括：A sealing structure for the main shaft pulley of the lathe spindle box of the utility model comprises:
主轴；spindle;
转动套，所述转动套与所述主轴键连接，用于带动所述主轴旋转；a rotating sleeve, the rotating sleeve is keyed to the main shaft and used to drive the main shaft to rotate;
端盖，所述端盖固连于所述主轴的第一端并限定所述转动套的轴向位置；an end cover, the end cover is fixedly connected to the first end of the main shaft and defines the axial position of the rotating sleeve;
带轮，所述带轮的第一侧与所述转动套固连，用于带动所述转动套旋转；a pulley, the first side of the pulley is fixedly connected with the rotating sleeve, and is used to drive the rotating sleeve to rotate;
固定套，所述固定套的第二端面固连于外部变速箱体上，所述固定套与所述转动套配合形成润滑腔，所述固定套上开有进油口和第一润滑油路，所述第一润滑油路的第一端与所述进油口连通，所述第一润滑油路的第二端与所述润滑腔连通；A fixed sleeve, the second end surface of the fixed sleeve is fixedly connected to the external gearbox body, the fixed sleeve cooperates with the rotating sleeve to form a lubricating cavity, and the fixed sleeve is provided with an oil inlet and a first lubricating oil passage , the first end of the first lubricating oil passage communicates with the oil inlet, and the second end of the first lubricating oil passage communicates with the lubricating chamber;
迷宫法兰，所述迷宫法兰固连于所述带轮的第二侧并与所述固定套配合形成迷宫密封并构成第二润滑油路，所述第二润滑油路的第一端与所述润滑腔连通；A labyrinth flange, the labyrinth flange is fixedly connected to the second side of the pulley and cooperates with the fixed sleeve to form a labyrinth seal and constitute a second lubricating oil passage, the first end of the second lubricating oil passage is connected to the The lubricating chamber is connected;
第一隔套；first spacer;
第一轴承，所述第一轴承的外圈与所述带轮相接且所述第一轴承的外圈的第一端与所述转动套相连，所述第一轴承的内圈与所述固定套相接且所述第一轴承的内圈的第二端与所述第一隔套相接；The first bearing, the outer ring of the first bearing is in contact with the pulley and the first end of the outer ring of the first bearing is connected with the rotating sleeve, the inner ring of the first bearing is connected with the The fixed sleeve is connected and the second end of the inner ring of the first bearing is connected with the first spacer;
第二轴承，所述第二轴承的外圈与所述带轮相接且所述第二轴承的外圈的第二端与所述迷宫法兰相连，所述第二轴承的内圈与所述固定套相接且所述第二轴承的内圈的第一端与所述第一隔套相接；The second bearing, the outer ring of the second bearing is in contact with the pulley and the second end of the outer ring of the second bearing is connected with the labyrinth flange, the inner ring of the second bearing is in contact with the pulley The fixed sleeve is connected and the first end of the inner ring of the second bearing is connected with the first spacer;
所述第一轴承的外圈的第一端设有第一密封圈，用于阻止润滑油渗漏；The first end of the outer ring of the first bearing is provided with a first sealing ring for preventing leakage of lubricating oil;
所述第二轴承的外圈的第二端设有第二密封圈，用于阻止所述润滑油渗漏；The second end of the outer ring of the second bearing is provided with a second sealing ring for preventing the lubricating oil from leaking;
所述第二润滑油路的出油口设有密封件，用于阻止所述润滑油渗漏；The oil outlet of the second lubricating oil circuit is provided with a seal for preventing the lubricating oil from leaking;
所述固定套和所述外部变速箱体上开有第一回油口和第二回油口，所述第一回油口的第一端与所述第二润滑油路连通，所述第一回油口的第二端与所述外部变速箱体的内腔连通；所述第二回油口的第一端与所述第二润滑油路连通，所述第二回油口的第二端与所述外部变速箱体的内腔连通。The fixed sleeve and the outer gearbox body are provided with a first oil return port and a second oil return port, the first end of the first oil return port communicates with the second lubricating oil passage, and the first oil return port communicates with the second lubricating oil passage. The second end of an oil return port communicates with the inner cavity of the external gearbox body; the first end of the second oil return port communicates with the second lubricating oil passage, and the first end of the second oil return port The two ends communicate with the inner cavity of the outer gearbox body.
本实用新型的车床主轴箱主轴带轮密封结构，所述迷宫密封为两道迷宫密封，所述第一回油口的第一端与所述迷宫密封在所述第二润滑油路的第一波谷连通，所述第二回油口的第一端与所述迷宫密封在所述第二润滑油路的第二波谷连通。In the sealing structure of the main shaft pulley of the lathe spindle box of the utility model, the labyrinth seal is two labyrinth seals, and the first end of the first oil return port and the labyrinth seal are at the first end of the second lubricating oil passage. The trough communicates with each other, and the first end of the second oil return port communicates with the second trough of the labyrinth seal in the second lubricating oil passage.
本实用新型的车床主轴箱主轴带轮密封结构，还包括第二隔套；所述第二隔套的第一端与所述第一轴承的外圈的第二端相连，所述第二隔套的第二端与所述第二轴承的外圈的第一端相连。The sealing structure of the main shaft pulley of the lathe spindle box of the utility model also includes a second spacer; the first end of the second spacer is connected with the second end of the outer ring of the first bearing, and the second spacer The second end of the sleeve is connected to the first end of the outer ring of the second bearing.
本实用新型的车床主轴箱主轴带轮密封结构，所述主轴与所述转动套通过平键连接。The utility model relates to a lathe headstock main shaft pulley sealing structure, and the main shaft is connected to the rotating sleeve through a flat key.
本实用新型的车床主轴箱主轴带轮密封结构，所述带轮与所述转动套螺栓连接。The utility model relates to a lathe headstock main shaft pulley sealing structure, and the pulley is connected to the rotating sleeve by bolts.
本实用新型由于采用以上技术方案，使其与现有技术相比具有以下的优点和积极效果：Compared with the prior art, the utility model has the following advantages and positive effects due to the adoption of the above technical scheme:
本实用新型一实施例通过在第一轴承的外圈的第一端设置第一密封圈，第二轴承的外圈的第二端设置第二密封圈以及第二润滑油路的出油口设置密封件来阻止润滑油渗漏，还通过在固定套和外部变速箱体上开设与第二润滑油路连通的第一回油口和第二回油口，提高回油速度，保持整个油路畅通，防止润滑油由于油路压力过高而从其他接触面部位渗漏。In one embodiment of the present invention, the first sealing ring is arranged at the first end of the outer ring of the first bearing, the second sealing ring is arranged at the second end of the outer ring of the second bearing, and the oil outlet of the second lubricating oil circuit is arranged. Seals are used to prevent lubricating oil from leaking, and the first oil return port and the second oil return port connected to the second lubricating oil circuit are opened on the fixed sleeve and the external gearbox body to increase the oil return speed and maintain the entire oil circuit. Unimpeded, preventing lubricating oil from leaking from other contact surface parts due to excessive pressure in the oil circuit.
附图说明Description of drawings
图1为本实用新型的车床主轴箱主轴带轮密封结构现有技术的实施方案示意图；Fig. 1 is the embodiment schematic diagram of the prior art of lathe headstock main shaft pulley seal structure of the utility model;
图2为本实用新型的车床主轴箱主轴带轮密封结构的示意图。Fig. 2 is a schematic diagram of the seal structure of the main shaft pulley of the lathe headstock of the utility model.
附图标记说明：1：主轴；2：转动套；3：带轮；4：端盖；5：第一轴承；6：第二轴承；7：迷宫法兰；8：固定套；9：外部变速箱体；10：进油口；11：第一隔套；12：第二隔套；13：第一密封圈；14：第二密封圈；15：密封件；16第一回油口；17：第二回油口。Explanation of reference signs: 1: main shaft; 2: rotating sleeve; 3: pulley; 4: end cover; 5: first bearing; 6: second bearing; 7: labyrinth flange; 8: fixed sleeve; 9: exterior Gear box; 10: oil inlet; 11: first spacer; 12: second spacer; 13: first sealing ring; 14: second sealing ring; 15: seal; 16 first oil return port; 17: The second oil return port.
具体实施方式Detailed ways
以下结合附图和具体实施例对本实用新型提出的一种车床主轴箱主轴带轮密封结构作进一步详细说明。根据下面说明和权利要求书，本实用新型的优点和特征将更清楚。The sealing structure of the main shaft pulley of the lathe headstock box proposed by the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description and claims, the advantages and features of the utility model will be more clear.
参看图2，在一个实施例中，一种车床主轴箱主轴带轮密封结构，包括：主轴1、转动套2、端盖4、带轮3、固定套8、迷宫法兰7、第一隔套11、第一轴承5、第二轴承6。转动套2与主轴1键连接，用于带动主轴1旋转。端盖4固连于主轴1的第一端并限定转动套2的轴向位置。带轮3的第一侧与转动套2固连，用于带动转动套2旋转。固定套8的第二端面固连于外部变速箱体9上，固定套8与转动套2配合形成润滑腔，固定套8上开有进油口10和第一润滑油路，第一润滑油路的第一端与进油口10连通，第一润滑油路的第二端与润滑腔连通。迷宫法兰7固连于带轮3的第二侧并与固定套8配合形成迷宫密封并构成第二润滑油路，第二润滑油路的第一端与润滑腔连通。第一轴承5的外圈与带轮3相接且第一轴承5的外圈的第一端与转动套2相连，第一轴承5的内圈与固定套8相接且第一轴承5的内圈的第二端与第一隔套11相接。第二轴承6的外圈与带轮3相接且第二轴承6的外圈的第二端与迷宫法兰7相连，第二轴承6的内圈与固定套8相接且第二轴承6的内圈的第一端与第一隔套11相接。第一轴承5的外圈的第一端设有第一密封圈13，用于阻止润滑油渗漏。第二轴承6的外圈的第二端设有第二密封圈14，用于阻止润滑油渗漏。第二润滑油路的出油口设有密封件15，用于阻止润滑油渗漏。固定套8和外部变速箱体9上开有第一回油口16和第二回油口17，第一回油口16的第一端与第二润滑油路连通，第一回油口16的第二端与外部变速箱体9的内腔连通。第二回油口17的第一端与第二润滑油路连通，第二回油口17的第二端与外部变速箱体9的内腔连通。车床运行时，润滑油由外部注油组件通过进油口10加注进第一润滑油路，润滑油从固定套8的第一端流出后，即流经第一轴承5并为第一轴承5进行润滑，再流至第二轴承6并为第二轴承6润滑后，流至迷宫法兰7与固定套8组成的第二润滑油路，最终经由第二润滑油路上的第一回油口16和第二回油口17流回变速箱体内腔。通过在第一轴承5的外圈的第一端设置第一密封圈13，第二轴承6的外圈的第二端设置第二密封圈14以及第二润滑油路的出油口设置密封件15来阻止润滑油渗漏，还通过在固定套8和外部变速箱体9上开设与第二润滑油路连通的第一回油口16和第二回油口17，提高回油速度，保持整个油路畅通，防止润滑油由于油路压力过高而从其他接触面部位渗漏。Referring to Fig. 2, in one embodiment, a lathe headstock main shaft pulley sealing structure includes: main shaft 1, rotating sleeve 2, end cover 4, pulley 3, fixed sleeve 8, labyrinth flange 7, first spacer Cover 11, first bearing 5, second bearing 6. The rotating sleeve 2 is keyed to the main shaft 1 for driving the main shaft 1 to rotate. The end cover 4 is fixedly connected to the first end of the main shaft 1 and defines the axial position of the rotating sleeve 2 . The first side of the pulley 3 is fixedly connected with the rotating sleeve 2 for driving the rotating sleeve 2 to rotate. The second end surface of the fixed sleeve 8 is fixedly connected to the external gearbox body 9, the fixed sleeve 8 cooperates with the rotating sleeve 2 to form a lubricating cavity, the fixed sleeve 8 is provided with an oil inlet 10 and a first lubricating oil passage, the first lubricating oil The first end of the passage communicates with the oil inlet 10, and the second end of the first lubricating oil passage communicates with the lubricating chamber. The labyrinth flange 7 is fixedly connected to the second side of the pulley 3 and cooperates with the fixed sleeve 8 to form a labyrinth seal and form a second lubricating oil passage. The first end of the second lubricating oil passage communicates with the lubricating chamber. The outer ring of the first bearing 5 is connected with the pulley 3 and the first end of the outer ring of the first bearing 5 is connected with the rotating sleeve 2, the inner ring of the first bearing 5 is connected with the fixed sleeve 8 and the first end of the first bearing 5 The second end of the inner ring is in contact with the first spacer 11 . The outer ring of the second bearing 6 is connected with the pulley 3 and the second end of the outer ring of the second bearing 6 is connected with the labyrinth flange 7, the inner ring of the second bearing 6 is connected with the fixed sleeve 8 and the second bearing 6 The first end of the inner ring is in contact with the first spacer 11. The first end of the outer ring of the first bearing 5 is provided with a first sealing ring 13 for preventing lubricating oil from leaking. The second end of the outer ring of the second bearing 6 is provided with a second sealing ring 14 for preventing lubricating oil from leaking. The oil outlet of the second lubricating oil passage is provided with a seal 15 for preventing the lubricating oil from leaking. The fixed sleeve 8 and the outer gearbox body 9 are provided with a first oil return port 16 and a second oil return port 17, the first end of the first oil return port 16 communicates with the second lubricating oil circuit, and the first oil return port 16 The second end of the second end communicates with the inner cavity of the external gearbox housing 9. The first end of the second oil return port 17 communicates with the second lubricating oil passage, and the second end of the second oil return port 17 communicates with the inner chamber of the external gearbox body 9 . When the lathe is running, lubricating oil is injected into the first lubricating oil circuit through the oil inlet 10 from the external oiling assembly. After the lubricating oil flows out from the first end of the fixed sleeve 8, it flows through the first bearing 5 and is the Lubricate, then flow to the second bearing 6 and lubricate the second bearing 6, flow to the second lubricating oil circuit composed of the labyrinth flange 7 and the fixed sleeve 8, and finally pass through the first oil return port on the second lubricating oil circuit 16 and the second oil return port 17 flow back to the gearbox body cavity. By setting the first seal ring 13 at the first end of the outer ring of the first bearing 5, the second end of the outer ring of the second bearing 6 is provided with the second seal ring 14 and the oil outlet of the second lubricating oil passage is provided with a seal 15 to prevent lubricating oil from leaking, and also by opening the first oil return port 16 and the second oil return port 17 communicated with the second lubricating oil passage on the fixed sleeve 8 and the external gearbox body 9, the oil return speed is improved, and the oil return rate is maintained. The entire oil circuit is unblocked to prevent lubricating oil from leaking from other contact surfaces due to excessive pressure in the oil circuit.
进一步地，迷宫密封为两道迷宫密封，第一回油口16的第一端与迷宫密封在第二润滑油路的第一波谷连通，第二回油口17的第一端与迷宫密封在第二润滑油路的第二波谷连通。将普通迷宫密封增加为两道迷宫密封，提高密封性能。迷宫法兰7为带有若干凹槽的圆盘件，凹槽与固定套8的凸起部分配合形成迷宫密封，凹槽的数量通过具体情况确定。Further, the labyrinth seal is two labyrinth seals, the first end of the first oil return port 16 communicates with the labyrinth seal in the first trough of the second lubricating oil passage, and the first end of the second oil return port 17 communicates with the labyrinth seal at The second valley of the second lubricating oil passage is connected. The ordinary labyrinth seal is increased into two labyrinth seals to improve the sealing performance. The labyrinth flange 7 is a disc member with several grooves, and the grooves cooperate with the protrusions of the fixed sleeve 8 to form a labyrinth seal, and the number of grooves is determined according to specific conditions.
优选地，还包括第二隔套12。第二隔套12的第一端与第一轴承5的外圈的第二端相连，第二隔套12的第二端与第二轴承6的外圈的第一端相连。通过设置第二隔套12，使第一轴承5和第二轴承6的受力更均衡，提高了第一轴承5和第二轴承6的寿命。Preferably, a second spacer 12 is also included. The first end of the second spacer 12 is connected with the second end of the outer ring of the first bearing 5 , and the second end of the second spacer 12 is connected with the first end of the outer ring of the second bearing 6 . By arranging the second spacer 12, the force of the first bearing 5 and the second bearing 6 is more balanced, and the service life of the first bearing 5 and the second bearing 6 is improved.
进一步地，主轴1与转动套2通过平键连接。Further, the main shaft 1 is connected with the rotating sleeve 2 through a flat key.
进一步地，带轮3与转动套2螺栓连接。Further, the pulley 3 is bolted to the rotating sleeve 2 .
上面结合附图对本实用新型的实施方式作了详细说明，但是本实用新型并不限于上述实施方式。即使对本实用新型作出各种变化，倘若这些变化属于本实用新型权利要求及其等同技术的范围之内，则仍落入在本实用新型的保护范围之中。The embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Even if various changes are made to the utility model, if these changes fall within the scope of the claims of the utility model and equivalent technologies thereof, they still fall within the protection scope of the utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920113425.1U CN209349960U (en) | 2019-01-23 | 2019-01-23 | A sealing structure for the main shaft pulley of the main shaft box of a lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920113425.1U CN209349960U (en) | 2019-01-23 | 2019-01-23 | A sealing structure for the main shaft pulley of the main shaft box of a lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209349960U true CN209349960U (en) | 2019-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920113425.1U Withdrawn - After Issue CN209349960U (en) | 2019-01-23 | 2019-01-23 | A sealing structure for the main shaft pulley of the main shaft box of a lathe |
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| Country | Link |
|---|---|
| CN (1) | CN209349960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605119A (en) * | 2019-01-23 | 2019-04-12 | 苏州工业职业技术学院 | A lathe headstock spindle pulley sealing structure |
| CN113357271A (en) * | 2021-06-25 | 2021-09-07 | 珠海格力电器股份有限公司 | Electric spindle structure and processing equipment |
-
2019
- 2019-01-23 CN CN201920113425.1U patent/CN209349960U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605119A (en) * | 2019-01-23 | 2019-04-12 | 苏州工业职业技术学院 | A lathe headstock spindle pulley sealing structure |
| CN109605119B (en) * | 2019-01-23 | 2024-02-09 | 苏州工业职业技术学院 | Lathe headstock main shaft band pulley seal structure |
| CN113357271A (en) * | 2021-06-25 | 2021-09-07 | 珠海格力电器股份有限公司 | Electric spindle structure and processing equipment |
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Granted publication date: 20190906 Effective date of abandoning: 20240209 |
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| AV01 | Patent right actively abandoned |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |