CN218935181U - Ball screw capable of preventing lubricating oil from leaking - Google Patents
Ball screw capable of preventing lubricating oil from leaking Download PDFInfo
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- CN218935181U CN218935181U CN202222536870.3U CN202222536870U CN218935181U CN 218935181 U CN218935181 U CN 218935181U CN 202222536870 U CN202222536870 U CN 202222536870U CN 218935181 U CN218935181 U CN 218935181U
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- oil
- lubricating oil
- ball
- nut
- sealing
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 41
- 239000003921 oil Substances 0.000 claims abstract description 109
- 238000007789 sealing Methods 0.000 claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000005461 lubrication Methods 0.000 claims abstract description 8
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 11
- 239000012530 fluid Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a ball screw capable of preventing lubricating oil from leaking, which comprises a screw rod and a nut, wherein the nut is arranged on the outer side of the screw rod, an end cover is arranged on one side of the nut, a steel ball is arranged in the nut, the steel ball is also arranged on the outer side, close to the nut, of the screw rod, and an oil hole is formed in the nut. This prevent ball that lubricating oil leaked, extrusion sealing bolt makes the elastic plate stretch into the inside of oilhole, makes sealed pad strengthen the extrusion to the oilhole, makes sealing bolt be difficult for not hard up, makes the leakproofness of oilhole be difficult for reducing, makes ball's lubricating oil be difficult for taking place to leak, and lubricating oil accessible divides the oil groove to get into and divides the oil channel and lubricate the steel ball by the oil dividing mouth again, sets up the top in the middle of two steel balls through the oil dividing mouth, makes the steel ball rotate and is difficult for receiving the influence of oil dividing mouth, makes ball can more fully quick receive the lubrication of lubricating oil.
Description
Technical Field
The utility model relates to the technical field of ball screws, in particular to a ball screw capable of preventing lubricating oil from leaking.
Background
Ball screws are common mechanical structural components that can convert rotary motion to linear motion, or vice versa. Currently, ball screws are one of the most commonly used drive elements in machine tools and precision machines. Its main function is to convert rotary motion into linear motion or torque into axial repeated acting force, and at the same time has the characteristics of high accuracy, reversibility and high efficiency. Ball screws are widely used in various industrial equipment and precision instruments due to their small frictional resistance.
Ball screws typically include screws, nuts, steel balls, pre-compression plates, reversers, dust guards, and the like. The ball screw pair can be lubricated to improve wear resistance and transmission efficiency. In the ball screw pair, it is considered that these elements operate with little wear as long as the entry of abrasive particles and chemically active substances is avoided. The ball screw can lead to ball frictional force increase after long-time rectilinear motion, influences ball screw's result of use, needs to add the lubricant to the nut is inside to reduce ball frictional force, make ball rolling effect smoother.
The ball screw used at present has more or less faults when not overhauled for a long time, wherein oil leakage is one of the common problems. Since the ball screw is in a moving state for a long time, the screw and the nut vibrate. During long-term vibration, the sealing bolts on the oil holes are gradually loosened. When the sealing bolt of the oil hole is loosened, if the sealing bolt cannot be found out in time and screwed down, the tightness of the oil hole is reduced, so that the lubricating oil of the ball screw can leak, and the wear resistance and the transmission efficiency of the ball screw are reduced.
Disclosure of Invention
The utility model aims to provide a ball screw capable of preventing lubricating oil from leaking, so as to improve the sealing performance of the ball screw and prevent the lubricating oil from leaking.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a prevent ball that lubricating oil leaked, includes screw rod and nut, the nut is installed in the outside of screw rod, and installs the end cover in one side of nut, the internally mounted of nut has the steel ball, the screw rod is close to the outside of nut and also installs the steel ball, the oilhole has been seted up to the inside of nut, and the oilhole meets with sealing bolt, sealing bolt's lower extreme is provided with seal assembly, and seal assembly is including elastic plate, sealing washer and sealing ring.
Preferably, the lower end of the sealing bolt is connected with an elastic plate, and a sealing gasket is fixed on the outer side of the elastic plate.
Preferably, a sealing ring is fixed on the outer side of the sealing gasket.
Preferably, a lubrication assembly is arranged on one side of the oil hole, and comprises an oil distributing groove, an oil distributing channel and an oil distributing opening, and the oil distributing groove is formed in one side of the oil hole.
Preferably, the oil distributing groove is butted with the sealing ring, and an oil distributing channel is formed in one end, far away from the oil hole, of the oil distributing groove.
Preferably, an oil distributing port is formed in one side, close to the steel ball, of the oil distributing channel.
Compared with the prior art, the utility model has the beneficial effects that: this prevent ball that lubricating oil leaked, extrusion sealing bolt makes the elastic plate stretch into the inside of oilhole, makes sealed pad strengthen the extrusion to the oilhole, makes sealing bolt be difficult for not hard up, makes the leakproofness of oilhole be difficult for reducing, makes ball's lubricating oil be difficult for taking place to leak, and lubricating oil accessible divides the oil groove to get into and divides the oil channel and lubricate the steel ball by the oil dividing mouth again, sets up the top in the middle of two steel balls through the oil dividing mouth, makes the steel ball rotate and is difficult for receiving the influence of oil dividing mouth, makes ball can more fully quick receive the lubrication of lubricating oil.
After the ball screw is added with lubricating oil, the sealing bolt is aligned with the oil hole, the sealing bolt is extruded, the elastic plate is made of a deformable and recoverable metal material, the elastic plate is extruded by the inner wall of the oil hole, the elastic plate stretches into the oil hole, and the sealing gasket and the oil hole are in interference fit, so that the oil hole and the sealing gasket form a sealing state. When the elastic plate stretches into the oil hole, the elastic plate has extrusion force on the inner wall of the oil hole, so that the sealing gasket reinforces the extrusion of the oil hole, the sealing bolt is not easy to loosen, and then the sealing bolt is rotated to be in threaded connection with the oil hole through the sealing bolt, so that the sealing bolt is limited in the oil hole. When the sealing bolt rotates to the tightest, the sealing ring is in contact with the oil distributing groove, the sealing ring extrudes the oil distributing groove, and the oil distributing groove and the sealing ring also form a sealing state by adopting rubber materials through the sealing ring. When the elastic plate is limited in the oil hole through the sealing bolt, the tightness of the oil hole is not easy to be reduced, and the lubricating oil of the ball screw is not easy to leak;
this prevent ball that lubricating oil leaked, through the oil dividing groove of seting up, divide oily passageway and divide the hydraulic fluid port, when making ball add lubricating oil to the oilhole, lubricating oil accessible oil dividing groove gets into and divides oily passageway again and lubricates the steel ball by dividing the hydraulic fluid port, and offer the top in the middle of two steel balls through dividing the hydraulic fluid port, do not contact with the hydraulic fluid port when making the rotation of steel ball, make the steel ball rotate and be difficult for receiving the influence of the hydraulic fluid port that divides, make ball can more fully quick receive the lubrication of lubricating oil.
Drawings
FIG. 1 is a schematic elevational cross-sectional view of the present utility model;
FIG. 2 is a schematic cross-sectional elevation view of a nut and end cap of the present utility model;
FIG. 3 is a schematic elevational cross-sectional view of a seal assembly of the present utility model;
FIG. 4 is a schematic view of the seal bolt and seal assembly of the present utility model.
In the figure: 1. a screw; 2. a nut; 3. an end cap; 4. a steel ball; 5. an oil hole; 6. a sealing bolt; 7. a seal assembly; 71. an elastic plate; 72. a sealing gasket; 73. a seal ring; 8. a lubrication assembly; 81. an oil dividing groove; 82. an oil separation channel; 83. and (5) an oil separating port.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a prevent ball that lubricating oil leaked, includes screw rod 1 and nut 2, nut 2 is installed in the outside of screw rod 1, and end cover 3 is installed to one side of nut 2, and the internally mounted of nut 2 has steel ball 4, and screw rod 1 is close to the outside of nut 2 and also installs steel ball 4, and oil hole 5 has been seted up to the inside of nut 2, and oil hole 5 and sealing bolt 6 butt joint.
The lower extreme of sealing bolt 6 is provided with seal assembly 7, and seal assembly 7 is including elastic plate 71, sealing washer 72 and sealing ring 73, and the lower extreme of sealing bolt 6 is connected with elastic plate 71, and the outside of elastic plate 71 is fixed with sealing washer 72, and the outside of sealing washer 72 is fixed with sealing ring 73, and sealing bolt 6 is threaded connection with oilhole 5, and elastic plate 71 adopts the metal material that can deformation resumes, and sealing washer 72 adopts the rubber material with sealing ring 73, and sealing washer 72 is interference fit with oilhole 5.
After the ball screw is added with lubricating oil, the sealing bolt 6 is aligned with the oil hole 5, the sealing bolt 6 is extruded, the elastic plate 71 is extruded by adopting a deformable and recoverable metal material through the elastic plate 71, the elastic plate 71 stretches into the oil hole 5, the sealing gasket 72 is in interference fit with the oil hole 5, the oil hole 5 and the sealing gasket 72 form a sealing state, the sealing bolt 6 is rotated, the sealing bolt 6 is in threaded connection with the oil hole 5 through the sealing bolt 6, the sealing ring 73 is limited in the oil hole 5, when the sealing bolt 6 is screwed tightly, the sealing ring 73 is in extrusion contact with the oil distributing groove 81, the oil distributing groove 81 and the sealing ring 73 also form a sealing state through the rubber material, when the elastic plate 71 is limited in the oil hole 5, the elastic plate 71 has extrusion force on the inner wall of the oil hole 5, the sealing gasket 72 reinforces the extrusion oil hole 5, the sealing bolt 6 is not easy to loose, the sealing property of the oil hole 5 is not easy to reduce, the lubricating oil of the ball screw is not easy to leak, and the ball screw maintains certain wear resistance and transmission efficiency.
During concrete implementation, one side of the oil hole 5 is provided with a lubrication assembly 8, and the lubrication assembly 8 comprises an oil distributing groove 81, an oil distributing channel 82 and an oil distributing opening 83, the oil distributing groove 81 is arranged on one side of the oil hole 5 and is in butt joint with the sealing ring 73, the oil distributing channel 82 is arranged at one end of the oil distributing groove 81, which is far away from the oil hole 5, the oil distributing opening 83 is arranged on one side of the oil distributing channel 82, which is close to the steel balls 4, the oil distributing opening 83 is arranged above the middle of the two steel balls 4, and the oil distributing groove 81 is in interference fit with the sealing ring 73.
In one embodiment, when the ball screw is added with lubricating oil through the oil dividing groove 81, the oil dividing channel 82 and the oil dividing opening 83, the lubricating oil can enter the oil dividing channel 82 through the oil dividing groove 81 to lubricate the steel balls 4 through the oil dividing opening 83, and the oil dividing opening 83 is arranged above the middle of the two steel balls 4, so that the steel balls 4 are not contacted with the oil dividing opening 83 when rotating, the steel balls 4 are not easily influenced by the oil dividing opening 83 when rotating, and the ball screw can be lubricated by the lubricating oil more sufficiently and rapidly.
When the ball screw is finished with the lubricant oil, the seal bolt 6 is aligned with the oil hole 5, the seal bolt 6 is pressed, the elastic plate 71 is inserted into the oil hole 5, and the oil hole 5 and the seal pad 72 are sealed. The sealing bolt 6 is rotated again, the sealing bolt 6 is limited in the oil hole 5, the elastic plate 71 has extrusion force to the inner wall of the oil hole 5, the sealing gasket 72 reinforces the extrusion oil hole 5, the sealing bolt 6 is not easy to loose, the sealing performance of the oil hole 5 is not easy to reduce, the lubricating oil of the ball screw is not easy to leak, and the ball screw can keep certain wear resistance and transmission efficiency.
When the ball screw is added with lubricating oil, the lubricating oil can enter the oil distributing channel 82 through the oil distributing groove 81 to lubricate the steel balls 4 through the oil distributing opening 83, and the oil distributing opening 83 is arranged above the middle of the two steel balls 4, so that the rotation of the steel balls 4 is not easily affected by the oil distributing opening 83, the ball screw can be lubricated by the lubricating oil more fully and rapidly, and the content which is not described in detail in the description belongs to the prior art known to the expert in the field.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (9)
1. The utility model provides a prevent ball that lubricating oil leaked, includes screw rod (1) and nut (2), its characterized in that:
the screw is characterized in that a nut (2) is arranged on the outer side of the screw (1), an end cover (3) is arranged on one side of the nut (2), a steel ball (4) is arranged in the nut (2), and the steel ball (4) is also arranged on the outer side, close to the nut (2), of the screw (1);
an oil hole (5) is formed in the nut (2), and the oil hole (5) is in butt joint with the sealing bolt (6); the lower end of the sealing bolt (6) is provided with a sealing component (7).
2. A ball screw for preventing leakage of lubricating oil according to claim 1, wherein: the sealing assembly (7) comprises an elastic plate (71), a sealing gasket (72) and a sealing ring (73).
3. A ball screw for preventing leakage of lubricating oil according to claim 2, wherein: the lower end of the sealing bolt (6) is connected with an elastic plate (71).
4. A ball screw for preventing leakage of lubricating oil according to claim 2, wherein: the gasket (72) is fixed to the outer side of the elastic plate (71).
5. A ball screw for preventing leakage of lubricating oil according to claim 2, wherein: a sealing ring (73) is fixed on the outer side of the sealing gasket (72).
6. A ball screw for preventing leakage of lubricating oil according to claim 1, wherein: one side of the oil hole (5) is provided with a lubrication assembly (8).
7. A ball screw for preventing leakage of lubricating oil according to claim 6, wherein: the lubricating assembly (8) comprises an oil distributing groove (81); an oil distributing groove (81) is formed in one side of the oil hole (5).
8. A ball screw for preventing leakage of lubricating oil according to claim 7, wherein: the oil distributing groove (81) is in butt joint with the sealing ring (73), and an oil distributing channel (82) is formed in one end, far away from the oil hole (5), of the oil distributing groove (81).
9. A ball screw for preventing leakage of lubricating oil according to claim 7, wherein: an oil distributing port (83) is formed in one side, close to the steel ball (4), of the oil distributing channel (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222536870.3U CN218935181U (en) | 2022-09-23 | 2022-09-23 | Ball screw capable of preventing lubricating oil from leaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222536870.3U CN218935181U (en) | 2022-09-23 | 2022-09-23 | Ball screw capable of preventing lubricating oil from leaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218935181U true CN218935181U (en) | 2023-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222536870.3U Active CN218935181U (en) | 2022-09-23 | 2022-09-23 | Ball screw capable of preventing lubricating oil from leaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218935181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118705332A (en) * | 2024-06-26 | 2024-09-27 | 中国机械总院集团海西(福建)分院有限公司 | Static pressure screw and control method thereof |
-
2022
- 2022-09-23 CN CN202222536870.3U patent/CN218935181U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118705332A (en) * | 2024-06-26 | 2024-09-27 | 中国机械总院集团海西(福建)分院有限公司 | Static pressure screw and control method thereof |
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| GR01 | Patent grant | ||
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