CN113202864B - Linear slider suitable for diversified lubricated oil circuit - Google Patents

Linear slider suitable for diversified lubricated oil circuit Download PDF

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Publication number
CN113202864B
CN113202864B CN202110500008.4A CN202110500008A CN113202864B CN 113202864 B CN113202864 B CN 113202864B CN 202110500008 A CN202110500008 A CN 202110500008A CN 113202864 B CN113202864 B CN 113202864B
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China
Prior art keywords
oil
valve component
hole
slider
groove
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CN202110500008.4A
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Chinese (zh)
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CN113202864A (en
Inventor
翁海龙
潘建鑫
毛庭清
叶卢炼
汤超雄
兰晓婷
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Lishui Jiexiang Technology Co ltd
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Lishui Jiexiang Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6674—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to the amount supplied, e.g. gaps to restrict flow of the liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
    • F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

The utility model provides a linear slider suitable for diversified lubricated oil circuit, includes the slider, pastes the oil circuit system that forms between end cover, end cover and the slider on this slider both ends face, be equipped with on the end cover with oil circuit system intercommunication's terminal surface oil filler point and side oil filler point, oil circuit system is including communicating in the left oiling runner of terminal surface oil filler point, communicating in the right oiling runner on terminal surface oil filler point right side and communicating in the drainage way in the middle of the terminal surface oil filler point, the terminal surface oil filler point is interior to be opened there is the mounting groove, is equipped with the oil valve part of distributing into oil circuit direction in the mounting groove, and the oil valve part seals laminating in mounting groove and slider terminal surface, and open at the center of oil valve part has the through-hole with terminal surface oil filler point intercommunication, and the through-hole is interior to be opened there is the drainage groove that is in communication oil circuit system, guarantees the slider normal lubrication under various mounting means to guarantee the life of slider.

Description

Linear slider suitable for diversified lubricated oil circuit
Technical Field
The invention relates to the field of guide rail sliding blocks, in particular to a linear sliding block suitable for a multidirectional lubricating oil way.
Background
At present, the lubrication system of the sliding block generally refuels the reflux groove through two oil ways which are arranged on the inner side of the end cover and are connected with the reflux groove, so that the lubrication effect of the rolling balls is ensured, when a customer uses the sliding block, the sliding block can be installed in various direction states, especially when the sliding block is laterally hung and installed, the sliding block is in a laterally vertical installation state, when the rolling balls are lubricated, lubricating oil can flow to the oil way of the lower end under the action of gravity, the reflux groove of the lower end and the rolling balls lubricate, and the lubricating oil cannot be added into the rolling balls at the upper end which are actually born, so that the abrasion of the rolling balls born at the upper end is increased, and the service life of the sliding block is greatly reduced.
Aiming at the technical problems, some solutions exist, but good effects cannot be achieved, for example, the closest patent document, publication No. 208397123, publication No. 2019.01.18 and patent name are linear slide rails with improved lubrication oil paths, and the structure adopts a movable plug in an oil filling hole, and the movable plug blocks an oil filling flow passage below by gravity to enable lubricating oil to flow upwards. However, the movable plug in the structure cannot block the oiling flow passage, and the main reasons are as follows: firstly, the oiling flow passage is formed by injection molding on the end face of the end cover, and the end cover is a plastic part, so that the oiling flow passage is generally square, and if the oiling flow passage is changed into other shapes, only semicircle, triangle and the like can be formed, the injection molding can not form a circle, so that the movable plug part can not completely seal the oiling flow passage no matter the movable plug part is a sphere, a cylinder or other shapes, and lubricating oil can flow downwards from a tiny gap, thereby affecting the upward flowing effect of the lubricating oil, and even the lubricating oil can not flow upwards; the second movable plug piece moves downwards under the influence of gravity, the sliding block slides transversely, and the general moving speed is higher, and the generated acceleration traction force is far greater than the gravity, so that the movable plug piece can only roll back and forth in theory or in practice.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides the linear sliding block suitable for the multidirectional lubrication oil path, and the sliding block can adapt to different installation states of the sliding block by adjusting the oil path direction of the oil valve component when in use, so that the rolling balls in the sliding block can be lubricated when the sliding block is installed in various modes, the normal use of the sliding block is ensured, and the service life of the sliding block is prolonged.
The invention solves the technical problems by adopting the technical scheme that: the linear slider suitable for the multidirectional lubrication oil way comprises a slider, end covers attached to two end faces of the slider, and an oil way system formed between the end covers and the slider, wherein the end covers are provided with an end face oil filling hole and a side face oil filling hole which are communicated with the oil way system;
the oil way system comprises a left oil injection runner communicated with the left side of the end face oil injection hole, a right oil injection runner communicated with the right side of the end face oil injection hole and a drainage runner communicated with the middle of the end face oil injection hole;
the oil valve component is sealed and attached to the end face of the mounting groove and the end face of the sliding block, a through hole communicated with the end face oil injection hole is formed in the center of the oil valve component, a drainage groove communicated with an oil circuit system is formed in the inner end of the through hole, the oil valve component which is located on the inner side of the end face oil injection hole and can rotate is arranged, the drainage groove is formed in the inner side of the oil valve component, and under different mounting states of the sliding block, the drainage groove is correspondingly connected with a left oil injection runner, a right oil injection runner or a drainage channel by rotating the oil valve component, so that the oil enters the drainage groove of the sliding block through different oil paths, and the full lubrication of the sliding block is ensured.
In order to further improve, the periphery of the outer end of the oil valve component is in sealing fit with the inner side wall of the mounting groove, and after the oil valve component is mounted, the oil valve component is tightly connected with the mounting groove, so that oil is prevented from leaking from the space between the oil valve component and the mounting groove.
Further perfecting, the inner end face of the oil valve component is provided with a sealing convex edge attached to the end face of the sliding block, the sealing convex edge is positioned on the periphery of the oil valve component and is provided with a sealing convex edge, and the sealing convex edge of the oil valve component and the outer end face of the sliding block are mutually extruded and sealed during installation, so that lubricating oil is prevented from flowing out through a gap between the oil valve component and the sliding block.
Further perfecting, the mounting groove inner chamber is the cylinder structure, the oil valve part main part is tetragonal structure, the side edges and corners of oil valve part main part are circular-arc and sealed hugs closely on the mounting groove lateral wall, because the oil valve part can outwards expand when receiving the extrusion, and the oil valve part sets up to tetragonal structure and makes to have the clearance between oil valve part and the mounting groove, make the oil valve part can outwards extrude the expansion in the clearance, thereby avoid the terminal surface that oil valve part and slider contacted to receive extrusion deformation, guarantee that the oil valve part four sides is better with the laminating of slider when receiving the extrusion, make the sealing effect of oil valve part better, and four sides and oil circuit correspondence one-to-one around separately set up, guarantee the UNICOM of required oil circuit direction.
Further perfecting, be equipped with a recess on the outer terminal surface of oil valve part, recess one end intercommunication is in the through-hole outer end to outwards extend with the drainage groove same direction, be equipped with the recess on the outer terminal surface of oil valve part, make the slider rotate through the recess when using, and the recess is the same with drainage groove extending direction, be convenient for audio-visual understanding the runner orientation of the inside drainage groove of oil valve part when using.
The other end of the groove penetrates through the outer side of the oil outlet valve component and is connected with the oil way system, the groove is connected with the oil way system, lubricating oil is more convenient to enter the oil way system, and the sliding block is more rapid and convenient to lubricate.
Further perfecting, the outer end of the through hole is provided with a groove body which is convenient for rotating the oil valve component, so that the oil valve component can be rotated conveniently.
Further perfecting, the oil valve component is made of elastic plastic materials, and has certain elasticity, so that the oil valve component is more tightly and conveniently connected with other components.
The beneficial effects of the invention are as follows: the invention has reasonable structural design and convenient use, is provided with the rotatable oil valve component positioned at the inner side of the oil filling hole of the end face, the inner side of the oil valve component is provided with the drainage groove, and under different installation states of the sliding block, the drainage groove is correspondingly connected with the left oil filling flow channel, the right oil filling flow channel or the drainage channel by rotating the oil valve component, so that the oil valve component enters the reflux groove of the sliding block through different oil ways, thereby ensuring the full lubrication of the sliding block, and the oil valve component can be stably butted with the oil filling flow channel or the drainage channel after rotating, thereby ensuring that the sliding block can lubricate balls at the upper end under the condition of side hanging, and greatly prolonging the service life of the sliding block.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic illustration of the installation of an end cap and oil valve components;
FIG. 4 is a front view of the end cap;
FIG. 5 is a schematic diagram of the structure of an oil valve member;
FIG. 6 is a rear view of the oil valve member;
FIG. 7 is a schematic flow diagram of the oil path during the normal assembly of the slider;
FIG. 8 is a schematic flow diagram of an oil path when the slider is laterally mounted and oil is injected from the end face oil injection hole;
fig. 9 is a schematic flow diagram of the oil passage when the slider is laterally mounted and oil is injected from the side oil injection hole.
Reference numerals illustrate: 1. the oil valve comprises a sliding block, 3, an end cover, 5, an end face oil filling hole, 5-1, a left oil filling flow channel, 5-2, a right oil filling flow channel, 5-3, a drainage channel, 7, a mounting groove, 8, an oil valve component, 9, a through hole, 11, a groove body, 12, a drainage groove, 17, a sealing convex edge, 19, a groove, 23 and a side oil filling hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1-4: the linear slider suitable for the multidirectional lubrication oil way comprises a slider 1, end covers 3 attached to two end faces of the slider 1, and an oil way system formed between the end covers 3 and the slider 1, wherein the end covers 3 are provided with an end face oil filling hole 5 and a side face oil filling hole 23 which are communicated with the oil way system; as shown in fig. 3 and 4, the oil path system includes a left oil injection runner 5-1 communicated with the left side of the end face oil injection hole 5, a right oil injection runner 5-2 communicated with the right side of the end face oil injection hole 5, and a guide runner 5-3 communicated with the middle of the end face oil injection hole 5; the inner end of the end face oil filling hole 5 is provided with a mounting groove 7, an oil valve component 8 for distributing the direction of an oil inlet path is arranged in the mounting groove 7, the oil valve component 8 is in sealing fit with the mounting groove 7 and the end face of the sliding block 1, the center of the oil valve component 8 is provided with a through hole 9 communicated with the end face oil filling hole 5, and the inner end of the through hole 9 is provided with a drainage groove 12 communicated with an oil path system; the periphery of the outer end of the oil valve part 8 is in sealing fit with the inner side wall of the mounting groove 7; the inner end surface of the oil valve part 8 is provided with a sealing convex edge 17 attached to the end surface of the sliding block 1, and the sealing convex edge 17 is positioned at the periphery of the oil valve part 8, so that a certain pressure is arranged between the sealing convex edge and the sliding block after the sliding block is installed and fixed, the relative sealing between the oil valve part and the sliding block is ensured, and meanwhile, the lubricating oil passing through the oil valve part can only enter a corresponding oil injection duct or a corresponding drainage duct through the drainage groove 12 and then enter a reflux groove on the end cover through a corresponding sequence; the inner cavity of the mounting groove 7 is of a cylindrical structure, the main body of the oil valve component 8 is of a tetragonal structure, and the side edges and corners of the main body of the oil valve component 8 are of arc shapes and are tightly attached to the side wall of the mounting groove 7 in a sealing manner;
as shown in fig. 5-6, a groove 19 is arranged on the outer end surface of the oil valve component 8, and one end of the groove 19 is communicated with the outer end of the through hole 9 and extends outwards in the same direction as the drainage groove 12; the other end of the groove 19 penetrates through the outer side of the oil outlet valve part 8 and is communicated with an oil way system; the outer end of the through hole 9 is provided with a groove body 11 which is convenient for rotating the oil valve part 8; the oil valve member 8 is made of elastic plastic material.
Example 1
As shown in fig. 7, when the slider is positively mounted and the oil filler neck is mounted on the end face oil filler hole 5: the normal sliding blocks arranged on the horizontal guide rail or the vertical guide rail need to be lubricated, so that the drainage groove 12 of the oil valve component 8 is kept in an upward connection state with the drainage channel 5-3, lubricating oil is injected into the through hole 9 of the oil valve component 8 through the end face oil injection hole 5, and the lubricating oil enters the drainage channel 5-3 through the drainage groove 12 and the groove 19, flows uniformly to the flow channels at the left end and the right end, and finally enters the reflux groove to lubricate the balls.
Example 2
As shown in fig. 8, when the slider is mounted on the side and the oil nozzle is mounted on the end face oil filler hole 5: when the right oiling channel 5-2 is arranged at the upper end of the slide block side, the cross screw driver is clamped into the groove body 11 to rotate the oil valve component 8, so that the drainage groove 12 of the oil valve component 8 is upwards arranged and connected with the right oiling channel 5-2, lubricating oil is injected into the through hole 9 of the oil valve component 8 through the end face oiling hole 5, after entering the right oiling channel 5-2 through the drainage groove 12 and the groove 19, one path of lubricating oil directly enters the reflux groove through the right oiling channel 5-2 to lubricate balls at the upper end, and the other path of lubricating oil downwards flows through the drainage channel 5-3 connected with the right oiling channel 5-2 and enters the reflux groove below through the left oiling channel 5-1 at the lower end to lubricate balls at the lower end, and the same operation is as above when the slide block side is arranged at the upper end.
Example 3
As shown in fig. 9, when the slider is mounted on the side and the oil nozzle is mounted on the side oil filling hole 23 at the upper end: the end face oil filling hole is sealed through the sealing plug, when the right oil filling channel 5-2 is arranged at the upper end on the side of the sliding block, the cross screw driver is clamped into the groove body 11 to rotate the oil valve component 8, so that the drainage groove 12 of the oil valve component 8 is upwards arranged and connected with the right oil filling channel 5-2, lubricating oil is filled into the inner side of the end cover 3 through the side oil filling hole 23 so as to enter the right oil filling channel 5-2, one path of lubricating oil directly enters the reflux groove at the upper end of the end cover 3 through the right oil filling channel 5-2, the oil valve component 8 connected with the right oil filling channel 5-2 cannot leak out from the through hole 9 due to the fact that the through hole 9 is sealed by the sealing plug, the path of the right oil filling channel connected with the oil valve component 8 is completely sealed, and the other path of lubricating oil enters the reflux groove at the lower end of the end cover through the drainage channel 5-3 connected with the right oil filling channel 5-2, and the same principle is operated when the sliding block is arranged at the upper end on the side of the left oil filling channel 5-1.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the invention.

Claims (6)

1. A linear slider suitable for a multidirectional lubrication oil way comprises a slider (1), end covers (3) attached to two end faces of the slider (1), an oil way system formed between the end covers (3) and the slider (1), and an end face oil filling hole (5) and a side face oil filling hole (23) which are communicated with the oil way system are formed in the end covers (3);
the oil way system comprises a left oil injection runner (5-1) communicated with the left side of the end face oil injection hole (5), a right oil injection runner (5-2) communicated with the right side of the end face oil injection hole (5) and a drainage runner (5-3) communicated with the middle of the end face oil injection hole (5);
the method is characterized in that: the inner end of the end face oil filling hole (5) is provided with a mounting groove (7), an oil valve component (8) for distributing the direction of an oil inlet oil path is arranged in the mounting groove (7), the oil valve component (8) is tightly attached to the end faces of the mounting groove (7) and the sliding block (1), the center of the oil valve component (8) is provided with a through hole (9) communicated with the end face oil filling hole (5), and the inner end of the through hole (9) is provided with a drainage groove (12) communicated with an oil path system;
the periphery of the outer end of the oil valve component (8) is in sealing fit with the inner side wall of the mounting groove (7);
the inner cavity of the mounting groove (7) is of a cylindrical structure, the main body of the oil valve component (8) is of a tetragonal structure, and the side edges and corners of the main body of the oil valve component (8) are arc-shaped and are sealed and tightly attached to the side wall of the mounting groove (7).
2. The linear slide block for a multi-directional lubrication circuit according to claim 1, wherein: the inner end surface of the oil valve component (8) is provided with a sealing convex edge (17) attached to the end surface of the sliding block (1), and the sealing convex edge (17) is positioned at the periphery of the oil valve component (8).
3. The linear slide block for a multi-directional lubrication circuit according to claim 1, wherein: the outer end face of the oil valve component (8) is provided with a groove (19), and one end of the groove (19) is communicated with the outer end of the through hole (9) and extends outwards in the same direction as the drainage groove (12).
4. A linear slide suitable for use in a multi-directional lubrication circuit as defined in claim 3, wherein: the other end of the groove (19) penetrates through the outer side of the oil outlet valve component (8) and is communicated with an oil way system.
5. The linear slide block for a multi-directional lubrication circuit according to claim 1, wherein: the outer end of the through hole (9) is provided with a groove body (11) which is convenient for rotating the oil valve component (8).
6. The linear slide block for a multi-directional lubrication circuit according to claim 1, wherein: the oil valve component (8) is made of elastic plastic materials.
CN202110500008.4A 2021-03-19 2021-05-08 Linear slider suitable for diversified lubricated oil circuit Active CN113202864B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110295293 2021-03-19
CN2021102952930 2021-03-19

Publications (2)

Publication Number Publication Date
CN113202864A CN113202864A (en) 2021-08-03
CN113202864B true CN113202864B (en) 2023-06-23

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI518259B (en) * 2013-06-11 2016-01-21 Hiwin Tech Corp Linear rail with adjustable oil path
US9046129B1 (en) * 2013-11-08 2015-06-02 Ome Technology Co., Ltd. Linear guideway and circulation module thereof
CN203717642U (en) * 2013-12-23 2014-07-16 上银科技股份有限公司 Linear guide way with lubricating structure
CN204677607U (en) * 2015-05-04 2015-09-30 上银科技股份有限公司 The linear slide rail of tool oil circuit regulating device
CN212131063U (en) * 2020-05-09 2020-12-11 丽水市杰祥科技有限公司 Slider with function of making an uproar is fallen in lubrication

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