CN110905917B - Linear bearing and motor - Google Patents
Linear bearing and motor Download PDFInfo
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- CN110905917B CN110905917B CN201911076491.7A CN201911076491A CN110905917B CN 110905917 B CN110905917 B CN 110905917B CN 201911076491 A CN201911076491 A CN 201911076491A CN 110905917 B CN110905917 B CN 110905917B
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- bearing
- oil
- linear bearing
- oil supply
- lubricating oil
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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
- F16C29/02—Sliding-contact bearings
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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
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Abstract
The invention discloses a linear bearing and a motor, relates to the technical field of motors, and solves the technical problem that in the prior art, the friction of a bearing is large because the working surface of the bearing is just at an interface. The linear bearing is a cylindrical structure formed by processing a bearing plate, the middle part of the bearing plate is formed into a bearing area, and lubricating oil paths are respectively arranged on two sides of the bearing plate and used for providing lubrication for the bearing area. According to the linear bearing, the middle part of the bearing plate is formed into the bearing area, so that the bearing area is a complete surface and has no interface, and the lubricating oil passages arranged at two sides of the bearing plate are used for lubricating the bearing area, so that the bearing area can realize complete fluid lubrication without disturbance of the interface to lubricating oil, the vibration of the lubricating oil in the linear bearing can be reduced, the vibration and friction of the linear bearing during rotation can be reduced, the service life of the linear bearing is greatly prolonged, and the noise is reduced.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a linear bearing and a motor.
Background
The linear bearing is a cylindrical structure formed by forming a rectangular plate, and has the advantages of low cost, low noise, large bearing capacity and the like. When objects in contact with each other move, friction is generated between contact surfaces, and if no lubrication is generated between the contact surfaces, the objects are worn quickly and cannot be used.
The conventional linear bearing is made of babbitt metal material, and an oil supply path structure is provided in the middle of a thin plate, as shown in fig. 1, and is formed into a cylindrical structure by a cold working winding forming process. The linear bearing can provide lubricating oil in the friction pair, and thus can achieve its excellent performance.
However, in the existing linear bearing, an interface exists after molding, and the working surface of the bearing is just at the interface, so that the rotating shaft vibrates during rotation, noise is caused, and the friction of the linear bearing is increased; meanwhile, the existence of the interface at the stress surface causes the lubricating oil to generate disturbance at the interface, so that the linear bearing cannot form complete fluid lubrication, the friction of the linear bearing is increased, and the service life is reduced. On the other hand, the existing linear bearing only has two oil supply paths, so that oil supply at the middle part of the linear bearing cannot be guaranteed, the lubrication of the linear bearing is insufficient, the friction of the bearing is further intensified, and the service life of the bearing is shortened. The problems of poor lubricating effect and high vibration noise frequently occur in the use of the conventional linear bearing, so that the service life of the bearing is shortened, and the service life of a motor is further influenced.
Disclosure of Invention
One of the purposes of the invention is to provide a linear bearing and a motor, which solve the technical problem that the friction of the bearing is large because the working surface of the bearing is just at the interface in the prior art. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the linear bearing is a cylindrical structure formed by processing a bearing plate, the middle part of the bearing plate is formed into a bearing area, and lubricating oil paths are respectively arranged on two sides of the bearing plate and used for providing lubrication for the bearing area.
According to a preferred embodiment, two sides of the bearing plate are further respectively provided with a lubricating oil distribution area and an oil inlet, wherein one end of the lubricating oil distribution area is connected with the oil inlet, the other end of the lubricating oil distribution area is connected with the lubricating oil path, and the other end of the lubricating oil path is connected with the bearing area.
According to a preferred embodiment, the lubricating oil passages, the lubricating oil distribution area and/or the oil inlets on both sides of the bearing plate are symmetrically arranged.
According to a preferred embodiment, the bearing plate is a rectangular parallelepiped structure, and the lubricating oil path, the lubricating oil distribution area and/or the oil inlet are disposed on two sides of the bearing plate with a shorter length.
According to a preferred embodiment, the oil inlet is located at a bearing interface of the molded linear bearing.
According to a preferred embodiment, the lubricating oil path includes at least a main oil supply path, a first auxiliary oil supply path and a second auxiliary oil supply path, the first auxiliary oil supply path and the second auxiliary oil supply path are located on both sides of the main oil supply path, and the main oil supply path is arranged in a direction of supplying lubricating oil to the middle of the bearing carrying area, and the first auxiliary oil supply path and the second auxiliary oil supply path are arranged in a direction of supplying lubricating oil to both ends of the bearing carrying area, respectively.
According to a preferred embodiment, the main oil supply passage, the first auxiliary oil supply passage, and the second auxiliary oil supply passage are formed in a W shape.
According to a preferred embodiment, the main oil supply passage is formed in a structure in which the diameter thereof is gradually reduced from the oil inlet end to the oil outlet end.
According to a preferred embodiment, the first auxiliary oil supply passage and the second auxiliary oil supply passage are formed in a structure in which the caliber is constant from the oil inlet end to the oil outlet end.
The motor comprises the linear bearing according to any technical scheme of the invention.
The linear bearing and the motor provided by the invention at least have the following beneficial technical effects:
according to the linear bearing, the middle part of the bearing plate is formed into the bearing area, so that the bearing area is a complete surface and has no interface, and the lubricating oil passages arranged at two sides of the bearing plate are used for lubricating the bearing area, so that the bearing area can realize complete fluid lubrication without disturbance of the interface to lubricating oil, the vibration of the lubricating oil in the linear bearing can be reduced, the vibration and friction of the linear bearing during rotation can be reduced, the service life of the linear bearing is greatly prolonged, and the noise is reduced.
Therefore, the linear bearing solves the problems that the working surface of the bearing of the conventional linear bearing is just at the interface, so that the rotating shaft vibrates during rotation, noise is caused, and the friction of the bearing is increased; meanwhile, the existence of the interface at the stress surface causes the lubricating oil to generate disturbance at the interface, so that the bearing cannot form complete fluid lubrication, the friction of the bearing is increased, and the service life is shortened.
In addition, the preferred technical scheme of the invention can also produce the following technical effects:
according to the preferred technical scheme, the main oil supply oil path provides lubricating oil to the middle of the bearing area, and the first auxiliary oil supply oil path and the second auxiliary oil supply oil path respectively provide lubricating oil to the two ends of the bearing area, so that the whole bearing area can be lubricated, and the problems that the existing linear bearing only has two oil supply oil paths, the oil supply of the middle part of the linear bearing cannot be guaranteed, the lubrication of the linear bearing is insufficient, the friction of the bearing is intensified, and the service life of the bearing is shortened are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a prior art linear bearing in an expanded configuration;
FIG. 2 is an expanded schematic view of a preferred embodiment of the linear bearing of the present invention;
FIG. 3 is a cross-sectional view of a preferred embodiment of the linear bearing of the present invention;
FIG. 4 is a first perspective view of a preferred embodiment of the linear bearing of the present invention;
fig. 5 is a second perspective view of a preferred embodiment of the linear bearing of the present invention.
In the figure: 1-bearing plate material; 11-a bearing carrying area; 12-lubricating oil circuit; 13-a lube oil distribution area; 14-an oil inlet; 15-bearing interface; 121-main oil supply path; 122-first auxiliary oil supply path; 123-second auxiliary oil supply channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The linear bearing and the motor of the present embodiment will be described in detail with reference to fig. 2 to 5.
The linear bearing of the present embodiment is a cylindrical structure formed by machining the bearing plate material 1. Fig. 2 shows a development of a preferred embodiment of the linear bearing according to the present embodiment. As shown in fig. 2, the middle of the bearing plate material 1 is formed as a bearing carrying area 11, and both sides of the bearing plate material 1 are respectively provided with a lubricating oil path 12, and the lubricating oil path 12 is used for providing lubrication for the bearing carrying area 11. The position of the bearing carrying area 11 is shown as a square frame in fig. 2, and the position of the lubricating oil path 12 is shown as a circle in fig. 2.
The linear bearing of this embodiment, the middle part of bearing panel 1 forms bearing area 11, thereby make bearing area 11 be a complete surface, there is not the interface, the rethread sets up the lubricated oil circuit 12 in 1 both sides of bearing panel and provides lubrication to bearing area 11, thereby make bearing area 11 realize complete fluid lubrication, do not have the interface to lubricating oil production disturbance, still can reduce the oscillation of the inside lubricating oil of linear bearing, vibration and friction when reducing linear bearing and rotating, make linear bearing life increase by a wide margin, the noise reduces.
Therefore, the linear bearing provided by the embodiment solves the problems that the bearing working surface of the existing linear bearing is just at the interface, so that the rotating shaft generates vibration when rotating, noise is caused, and the friction of the bearing is increased by changing the arrangement positions of the bearing area 11 and the lubricating oil path 12; meanwhile, the existence of the interface at the stress surface causes the lubricating oil to generate disturbance at the interface, so that the bearing cannot form complete fluid lubrication, the friction of the bearing is increased, and the service life is shortened.
In addition, the linear bearing of the embodiment also has the characteristics of simple structure, easy production and low cost.
According to a preferred embodiment, the bearing plate 1 is further provided with a lubricant distribution area 13 and an oil inlet 14 on both sides, respectively, as shown in fig. 2. Preferably, one end of the lubricating oil distribution area 13 is connected with the oil inlet 14, the other end of the lubricating oil distribution area 13 is connected with the lubricating oil path 12, and the other end of the lubricating oil path 12 is connected with the bearing area 11. When the linear bearing works, lubricating oil enters the lubricating oil distribution area 13 from the oil inlet 14 and is supplied to the bearing area 11 through the lubricating oil path 12.
According to a preferred embodiment, the lubrication oil channels 12, the lubrication oil distribution area 13 and/or the oil inlet 14 on both sides of the bearing plate 1 are symmetrically arranged, respectively, as shown in fig. 2. Preferably, the bearing plate 1 is of a rectangular parallelepiped structure, and the lubricating oil path 12, the lubricating oil distribution area 13 and/or the oil inlet 14 are/is arranged on two sides of the bearing plate 1 with a shorter length. Preferably, the oil inlet 14 is located at a bearing interface 15 of the molded linear bearing.
In the preferred technical scheme of this embodiment, before the linear bearing is molded, the lubricating oil path 12, the lubricating oil distribution area 13 and/or the oil inlet 14 are integrally divided into two symmetrical halves, which are respectively disposed at two sides of the bearing plate 1, as shown in fig. 2, so that the working position of the bearing is moved from the interface portion to the middle portion, thereby making the bearing carrying area 11 a complete surface without an interface, reducing the vibration of the lubricating oil inside the linear bearing, and reducing the vibration and friction of the linear bearing during rotation.
The linear bearing in the preferred technical scheme of the embodiment is manufactured into a cylindrical bearing through a cold working forming process, as shown in fig. 3-5. The bearing interface 15 of linear bearing after the shaping is located oil inlet 14 department, designs oil inlet 14 and bearing interface 15 simultaneously in linear bearing's same position department, is favorable to making linear bearing's the actual work region form complete smooth face region, promptly: the bearing area 11 forms a complete smooth surface area, the complete smooth working area is beneficial to the linear bearing to form a complete fluid lubrication state, noise generated by vibration of the linear bearing due to impact of an interface during working is reduced, and the service life of the linear bearing is greatly prolonged. The linear bearing of the preferred technical scheme of this embodiment promptly can solve current linear bearing because of the impact that has the interface, produces vibration and arouses noise and lubricating oil to vibrate the problem that arouses that the lubricating oil film destroys.
According to a preferred embodiment, the lubricating oil passages 12 include at least a main oil supply passage 121, a first auxiliary oil supply passage 122, and a second auxiliary oil supply passage 123, as shown in fig. 2. Preferably, the first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 are located at two sides of the main oil supply path 121, and the main oil supply path 121 is disposed in a direction of supplying lubricating oil to the middle of the bearing support area 11, and the first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 are disposed in a direction of supplying lubricating oil to two ends of the bearing support area 11, respectively. More preferably, the main oil supply path 121, the first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 are formed in a W shape, as shown in fig. 2 or 5.
In the preferred technical scheme of this embodiment, the main oil supply path 121 provides lubricating oil to the middle of the bearing area 11, and the first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 provide lubricating oil to the two ends of the bearing area 11, respectively, so that the whole bearing area 11 can be lubricated, and the problems that the existing linear bearing has only two oil supply paths, the oil supply to the middle part of the linear bearing cannot be ensured, the lubrication of the linear bearing is insufficient, the friction of the bearing is aggravated, and the service life of the bearing is reduced are solved.
On the other hand, in the process of lubricating the linear bearing, after the lubricating oil in the linear bearing flows to the linear bearing from the oil supply oil path, the lubricating oil flows out from two end faces of the linear bearing, so that the lubricating oil of the linear bearing has an end leakage phenomenon, and the lubricating oil film at two end face parts of the linear bearing is difficult to form, and the lubrication is poor. Therefore, in the preferred technical solution of this embodiment, the first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 for respectively providing lubricating oil to the two ends of the bearing carrying area 11 are provided, so as to supplement the lubricating oil to the two end surface portions of the linear bearing, thereby solving the problem that the lubricating oil film at the two end surface portions of the linear bearing is difficult to form and poor in lubrication due to the end leakage phenomenon of the conventional linear bearing.
According to a preferred embodiment, the main oil supply path 121 is formed in a structure in which the bore is gradually reduced from the oil inlet end to the oil outlet end. That is, the main oil supply passage 121 has a horn-shaped structure with a large end and a small end. The first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 are formed in a structure in which the caliber is not changed from the oil inlet end to the oil outlet end. In the preferred technical scheme of the embodiment, the oil inlet end refers to the end close to the oil inlet 14, and the oil outlet end refers to the end close to the bearing loading area 11.
The main oil supply path 121 of the preferred technical solution of this embodiment is formed in a structure that the caliber decreases gradually from the oil inlet end to the oil outlet end, the larger opening end of the main oil supply path 121 is connected to the lubricant distribution area 13, so that more lubricant is distributed to the main oil supply path 121, and the smaller opening end is connected to the bearing area 11, so that the end of the main oil supply path 121 can obtain a certain oil pressure, and the bearing area 11 can more easily form a lubricant film, thereby solving the problem of insufficient oil supply at the middle part of the existing linear bearing.
According to the preferable technical scheme of the embodiment, through the improvement on the lubricating oil path 12, each part of the linear bearing can be well lubricated, and the problem of insufficient oil supply at the middle part of the traditional bearing structure is solved. The middle part of the linear bearing is also the main stressed part of the linear bearing, and whether a good complete fluid lubrication state can be formed here or not directly influences the service life of the bearing. Therefore, according to the preferred technical scheme of the embodiment, after the W-shaped oil supply path structure is adopted, the middle part of the linear bearing can be well lubricated, the two end parts of the linear bearing can be supplemented with lubricating oil, and the influence of end face leakage of the bearing on lubrication is reduced, so that the whole bearing can be well lubricated.
That is, in the preferred technical scheme of this embodiment, the lubricating oil path 12 is disposed on the working surface of the linear bearing, which is in contact with the rotating shaft, and the lubricating oil path 12 is disposed in a W-shaped structure with three oil supply paths, wherein the middle main oil supply path 121 is designed in a bell mouth shape with a large end and a small end, and the first auxiliary oil supply path 122 and the second auxiliary oil supply path 123 at the two ends are designed in a parallel shape with a constant size.
The motor of the embodiment comprises the linear bearing of any technical scheme of the embodiment. The motor of this embodiment, owing to used the linear bearing of any technical scheme of this embodiment, can make linear bearing obtain good lubrication, reduce the vibration noise, life improves, and then can improve the life of motor, has solved current linear bearing and has appeared lubricated poor, the big problem of vibration noise often in the use for bearing life reduces, and then influences motor life's problem.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. The linear bearing is characterized in that the linear bearing is a cylindrical structure formed by processing a bearing plate material (1), a bearing area (11) is formed in the middle of the bearing plate material (1), lubricating oil paths (12) are respectively arranged on two sides of the bearing plate material (1), and the bearing area (11) is lubricated through the lubricating oil paths (12); wherein the content of the first and second substances,
the lubricating oil path (12) at least comprises a main oil supply path (121), a first auxiliary oil supply path (122) and a second auxiliary oil supply path (123),
the first auxiliary oil supply oil path (122) and the second auxiliary oil supply oil path (123) are located on two sides of the main oil supply oil path (121), the main oil supply oil path (121) is arranged in a direction of providing lubricating oil for the middle of the bearing area (11), and the first auxiliary oil supply oil path (122) and the second auxiliary oil supply oil path (123) are arranged in directions of providing lubricating oil for two ends of the bearing area (11) respectively.
2. Linear bearing according to claim 1, characterized in that the bearing plate (1) is also provided on both sides with a lubricant distribution area (13) and an oil inlet (14), respectively, wherein,
one end of the lubricating oil distribution area (13) is connected with the oil inlet (14), the other end of the lubricating oil distribution area (13) is connected with the lubricating oil path (12), and the other end of the lubricating oil path (12) is connected with the bearing area (11).
3. The linear bearing according to claim 2, characterized in that the lubrication oil channels (12), the lubrication oil distribution area (13) and/or the oil inlets (14) on both sides of the bearing plate (1) are arranged symmetrically.
4. A linear bearing according to claim 2, characterized in that the bearing plate (1) is of rectangular parallelepiped construction and that the lubrication oil channels (12), the lubrication oil distribution area (13) and/or the oil inlet (14) are provided on both sides of the bearing plate (1) in the shorter length.
5. The linear bearing according to claim 2, characterized in that the oil inlet (14) is located at a bearing interface (15) of the linear bearing after molding.
6. The linear bearing according to claim 1, wherein the main oil supply passage (121), the first auxiliary oil supply passage (122), and the second auxiliary oil supply passage (123) are formed in a W shape.
7. The linear bearing of claim 1, wherein the main oil supply passage (121) is formed in a structure in which a bore is gradually reduced from an oil inlet end to an oil outlet end.
8. The linear bearing according to claim 1, wherein the first auxiliary oil supply passage (122) and the second auxiliary oil supply passage (123) are formed in a structure in which a bore diameter is constant from an oil inlet end to an oil outlet end.
9. An electrical machine comprising a linear bearing as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076491.7A CN110905917B (en) | 2019-11-06 | 2019-11-06 | Linear bearing and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076491.7A CN110905917B (en) | 2019-11-06 | 2019-11-06 | Linear bearing and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110905917A CN110905917A (en) | 2020-03-24 |
| CN110905917B true CN110905917B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911076491.7A Active CN110905917B (en) | 2019-11-06 | 2019-11-06 | Linear bearing and motor |
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| Country | Link |
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| CN (1) | CN110905917B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217796B (en) * | 2021-03-30 | 2022-12-06 | 上海远都机床股份有限公司 | Lubricating mechanism of closed single-point press |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100365B2 (en) * | 1971-01-07 | 1981-09-17 | Ekkehard Dr.-Ing. 7100 Heilbronn Grau | Plain bearings with lubrication groove system |
| CN1878964A (en) * | 2003-11-25 | 2006-12-13 | 奥依列斯工业株式会社 | Bush bearing |
| CN101042154A (en) * | 2007-04-11 | 2007-09-26 | 潍柴动力股份有限公司 | Engines connecting rod bushing |
| CN201627826U (en) * | 2010-01-27 | 2010-11-10 | 宁波轴瓦厂 | Automobile brake air compressor bearing bush with eccentric oil groove |
| CN205446407U (en) * | 2015-12-17 | 2016-08-10 | 天津华北集团铜业有限公司 | Flying shear copper sheathing |
| JP6079438B2 (en) * | 2013-05-28 | 2017-02-15 | トヨタ自動車株式会社 | Winding bush bearing |
| JP2017072205A (en) * | 2015-10-08 | 2017-04-13 | 株式会社明電舎 | Slide bearing |
| CN209414404U (en) * | 2018-11-29 | 2019-09-20 | 浙江凯蒂滑动轴承有限公司 | Bimetallic flange bearing |
-
2019
- 2019-11-06 CN CN201911076491.7A patent/CN110905917B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100365B2 (en) * | 1971-01-07 | 1981-09-17 | Ekkehard Dr.-Ing. 7100 Heilbronn Grau | Plain bearings with lubrication groove system |
| CN1878964A (en) * | 2003-11-25 | 2006-12-13 | 奥依列斯工业株式会社 | Bush bearing |
| CN101042154A (en) * | 2007-04-11 | 2007-09-26 | 潍柴动力股份有限公司 | Engines connecting rod bushing |
| CN201627826U (en) * | 2010-01-27 | 2010-11-10 | 宁波轴瓦厂 | Automobile brake air compressor bearing bush with eccentric oil groove |
| JP6079438B2 (en) * | 2013-05-28 | 2017-02-15 | トヨタ自動車株式会社 | Winding bush bearing |
| JP2017072205A (en) * | 2015-10-08 | 2017-04-13 | 株式会社明電舎 | Slide bearing |
| CN205446407U (en) * | 2015-12-17 | 2016-08-10 | 天津华北集团铜业有限公司 | Flying shear copper sheathing |
| CN209414404U (en) * | 2018-11-29 | 2019-09-20 | 浙江凯蒂滑动轴承有限公司 | Bimetallic flange bearing |
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| CN110905917A (en) | 2020-03-24 |
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