CN114227216A - Installation device of oil-free lubrication bearing sleeve - Google Patents
Installation device of oil-free lubrication bearing sleeve Download PDFInfo
- Publication number
- CN114227216A CN114227216A CN202111589767.9A CN202111589767A CN114227216A CN 114227216 A CN114227216 A CN 114227216A CN 202111589767 A CN202111589767 A CN 202111589767A CN 114227216 A CN114227216 A CN 114227216A
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- China
- Prior art keywords
- piston
- oil
- bushing
- oil cylinder
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention belongs to the technical field of mechanical assembly, and discloses an installation device of an oil-free lubrication bearing sleeve, which comprises a positioning shaft, a connecting rod, a piston oil cylinder, a pull rod, a piston rod, a bushing, a top cover, a handle, a joint and a hydraulic pump, wherein the positioning shaft is arranged on the connecting rod; the piston rod is arranged in the piston oil cylinder; an annular oil cavity is defined by the outer wall of the piston rod and the inner wall of the piston oil cylinder; the left end of the bushing is inserted into the piston oil cylinder; the top cover is sleeved on the outer side of the bushing and is in sliding connection with the bushing, and the left end of the top cover is fixed in the piston oil cylinder; the left end of the pull rod is connected with the right end of the connecting rod, and the right end of the pull rod is provided with a handle; the left end of the connecting rod is connected with the positioning shaft; the positioning shaft is a step shaft; an oil passage hole is also formed in the piston oil cylinder and is communicated with the oil cavity; one end of the joint is connected with the oil passage hole, and the other end of the joint is connected with the hydraulic pump. The invention can stably press the bearing sleeve without oil lubrication into the bearing hole, thereby ensuring the installation precision of the bearing sleeve.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, and particularly relates to a mounting device for a solid embedded oil-free lubricating bearing sleeve.
Background
The oil-free lubricating bearing sleeve is characterized in that graphite, polytetrafluoroethylene solid lubricating materials and the like are embedded into high-force brass, tin bronze and other alloy materials by adopting an embedding process, and solid lubrication and a shaft are rubbed by frictional heat during working to form excellent conditions of oil and powder coexistence lubrication, so that the shaft is protected from abrasion, and the solid lubricating property is kept constant.
In the actual assembling process, the bearing sleeve and the bearing hole are in interference fit, the mounting technology difficulty is high, meanwhile, the wall of the bearing sleeve is thin, the bearing sleeve and the bearing hole are difficult to mount coaxially by adopting a common method during mounting, the phenomena of shaft sleeve gnawing, surface paint film damage and the like are easy to occur, the mounting precision is not high, and the service life of the shaft sleeve is greatly shortened.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problem that the oilless bearing bush is not high in precision and easy to damage when being installed.
In order to solve the technical problems, the specific technical scheme of the mounting device of the oil-free lubrication bearing sleeve is as follows:
an installation device of an oil-free lubrication bearing sleeve comprises a positioning shaft, a connecting rod, a piston oil cylinder, a pull rod, a piston rod, a bushing, a top cover, a handle, a joint and a hydraulic pump;
the piston rod is hollow inside, and an annular bulge is arranged on the outer surface of the piston rod; a step hole is formed in the piston oil cylinder; the piston rod is arranged in the piston oil cylinder and is in sliding connection with the piston oil cylinder; an annular oil cavity is defined by the outer wall of the piston rod and the inner wall of the piston oil cylinder;
the bushing is of an internal hollow structure, and the outer surface of the bushing is stepped; the left end of the bushing is inserted into the piston oil cylinder, and the step surface on the bushing is contacted with the right end surface of the piston rod; the top cover is sleeved on the outer side of the bushing and is in sliding connection with the bushing, and the left end of the top cover is fixed in the piston oil cylinder;
the pull rod penetrates through the bushing and is connected with the bushing in a sliding manner, the left end of the pull rod is connected with the right end of the connecting rod, and the right end of the pull rod is provided with a handle; the left end of the connecting rod is connected with the positioning shaft;
the positioning shaft is a step shaft, and the outer surface of the positioning shaft is in small clearance fit with a bearing sleeve to be installed; an oil passage hole is also formed in the piston oil cylinder and is communicated with the oil cavity; one end of the joint is connected with the oil passage hole, and the other end of the joint is connected with the hydraulic pump.
The piston rod is characterized by further comprising a small O-shaped ring, and the space between the outer wall of the left end of the piston rod and the inner wall of the piston oil cylinder is sealed through the small O-shaped ring.
The piston oil cylinder is characterized by further comprising a large O-shaped ring, and the annular bulge and the inner wall of the piston oil cylinder are sealed through the large O-shaped ring.
The oil passage structure further comprises a sealing gasket, and the sealing gasket is arranged between the joint and the oil passage hole and used for sealing.
The mounting device further comprises a spring, the spring sleeve is arranged at the right end of the piston rod, the left end of the spring is in contact with the annular convex part of the piston rod, and the right end of the spring is in contact with the top cover.
The installation device of the oil-free lubrication bearing sleeve has the following advantages: the bearing sleeve without oil lubrication is stably pressed into the bearing hole, the mounting precision of the bearing sleeve is guaranteed, and the mounting problem that the bearing sleeve without oil lubrication is not installed correctly and is easy to damage is solved.
Drawings
Fig. 1 is a schematic structural view of a mounting device of an oil-free lubrication bearing bush of the invention.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a mounting device for an oil-free bearing housing according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the installation device of the oil-free bearing housing of the present embodiment includes a positioning shaft 1, a connecting rod 4, a piston cylinder 5, a small O-ring 6, a pull rod 7, a large O-ring 8, a piston rod 9, a spring 10, a bushing 11, a top cover 12, a handle 13, a seal gasket 14, a joint 15, and a hydraulic pump 16.
The piston rod 9 is hollow inside, and an annular convex part is arranged on the outer surface of the piston rod; a cavity is arranged in the piston oil cylinder 5; the piston rod 9 is arranged in the piston oil cylinder 5 and is in sliding connection with the piston oil cylinder; the outer wall of the left end of the piston rod 9 is hermetically connected with the inner wall of the piston oil cylinder 5 through a small O-shaped ring 6; the annular bulge of the piston rod 9 is arranged in a cavity in the piston oil cylinder 5, the annular bulge is connected with the inner wall of the piston oil cylinder 5 in a sealing mode through a large O-shaped ring 8, and an oil cavity is formed by the outer wall of the piston rod 9 and the inner wall of the piston oil cylinder 5 in a surrounding mode; the bush 11 is of an internal hollow structure, the outer surface of the bush is stepped, the left end of the bush 11 is inserted into the piston cylinder 5, and the stepped surface on the bush 11 is in contact with the right end surface of the piston rod 9; the top cover 12 is sleeved on the outer side of the bushing 11 and is in sliding connection with the bushing 11, and the left end of the top cover 12 is fixed in the piston oil cylinder 5; the spring 10 is sleeved on the piston rod 9, the left end of the spring 10 is in contact with the annular convex part of the piston rod 9, and the right end of the spring 10 is in contact with the top cover 12; and an oil passage hole is also formed in the piston oil cylinder 5 and is communicated with the oil cavity. The joint 15 is a connector with external threads at two ends, one end of the joint 15 is arranged in an oil passage hole of the piston oil cylinder 5, the sealing gasket 14 is arranged between the joint 15 and the oil passage hole and used for sealing, and the other end of the joint 15 is connected with the hydraulic pump 16.
The pull rod 7 is a cylindrical connecting piece, the left side of the pull rod is provided with a screw rod, the right side of the pull rod is provided with a handle 13, the pull rod 7 is connected with the bush 11 in a sliding mode, and the left end of the pull rod 7 penetrates through the bush 11 and is connected with the right end of the connecting rod 4; the right end face of the bush 11 can be in contact with the left end face of the handle 13. The connecting rod 4 is a switching connecting rod, the left end of the connecting rod is provided with a screw connected with the positioning shaft 1, and the right end of the connecting rod is provided with a threaded hole; the positioning shaft 1 is a stepped shaft, the bearing sleeve 2 to be installed is arranged on the positioning shaft 1, and the outer surface of the positioning shaft 1 is in small clearance fit with the bearing sleeve 2.
When the mounting device of the embodiment is used for mounting the bearing sleeve without oil lubrication, firstly, the bearing sleeve 2 is mounted on the positioning shaft 1, the left end face of the bearing sleeve 2 is in contact with the step face of the positioning shaft 1, the positioning shaft 1 is placed on one side of the bearing hole on the workpiece 3, then the connecting rod 4 on the mounting device penetrates through the bearing hole from the other side of the bearing hole to be in threaded connection with the mounting shaft 1, and the left end face of the piston oil cylinder 5 is always attached to the workpiece 3.
The hydraulic pump 16 is used for injecting oil into the inner cavity of the piston oil cylinder 5 for pressurization, the oil pressure in the piston oil cylinder 5 pushes the piston rod 9 to slide rightwards, the inner bushing 11 and the pull rod 7 are driven to move rightwards at the same time, finally the positioning shaft 1 and the bearing sleeve 2 are driven to slide rightwards along the inner part of the bearing hole of the workpiece 3, after the step surface of the positioning shaft 1 is flush with the left end surface of the workpiece 3 in a laminating mode, the bearing sleeve 2 is installed in place, the oil injection pressurization is stopped, and the flexible installation of the whole bearing sleeve 2 is achieved. During the dismantlement, earlier with the hydraulic pump pressure release, piston rod 9 moves left under the drive of spring 10 and resets, gets rid of the interior oil of piston cylinder 5 totally, and pull rod 7 and connecting rod 4 atress are eliminated simultaneously, and connecting rod 4 accomplishes the dismantlement with installation location axle 1, accomplishes whole assembling process.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and these should be considered to fall within the scope of the invention.
Claims (5)
1. An installation device of an oil-free lubrication bearing bush is characterized by comprising a positioning shaft (1), a connecting rod (4), a piston oil cylinder (5), a pull rod (7), a piston rod (9), a bush (11), a top cover (12), a handle (13), a joint (15) and a hydraulic pump (16);
the piston rod (9) is hollow, and an annular convex part is arranged on the outer surface of the piston rod; a step hole is formed in the piston oil cylinder (5); the piston rod (9) is arranged inside the piston oil cylinder (5) and is in sliding connection with the piston oil cylinder; an annular oil cavity is defined by the outer wall of the piston rod (9) and the inner wall of the piston oil cylinder 5;
the bushing (11) is of an internal hollow structure, and the outer surface of the bushing is stepped; the left end of the bushing (11) is inserted into the piston oil cylinder (5), and a step surface on the bushing (11) is in contact with the right end surface of the piston rod (9); the top cover (12) is sleeved on the outer side of the bushing (11) and is in sliding connection with the bushing (11), and the left end of the top cover (12) is fixed in the piston oil cylinder (5);
the pull rod (7) penetrates through the bushing (11) and is connected with the bushing (1) in a sliding mode, the left end of the pull rod (7) is connected with the right end of the connecting rod (4), and a handle (13) is arranged at the right end of the pull rod (7); the left end of the connecting rod (4) is connected with the positioning shaft (1);
the positioning shaft (1) is a step shaft, and the outer surface of the positioning shaft (1) is in small clearance fit with the bearing sleeve (2) to be installed; an oil passage hole is also formed in the piston oil cylinder (5), and the oil passage hole is communicated with the oil cavity; one end of the joint (15) is connected with the oil passage hole, and the other end of the joint is connected with the hydraulic pump (16).
2. An oil-free bearing bush mounting device as claimed in claim 1, further comprising a small O-ring (6), wherein the space between the outer wall of the left end of the piston rod (9) and the inner wall of the piston cylinder (5) is sealed by the small O-ring (6).
3. An oil-free bearing bush mounting device as claimed in claim 1, further comprising a large O-ring (8), wherein the annular boss is sealed with the inner wall of the piston cylinder (5) through the large O-ring (8).
4. An oil-free bearing housing mounting device according to claim 1, further comprising a gasket (14), the gasket (14) being disposed between the joint (15) and the gallery hole for sealing.
5. An oil-free bearing bush mounting device according to claim 1, further comprising a spring (10), wherein the spring (10) is sleeved on the right end of the piston rod (9), the left end of the spring (10) is in contact with the annular convex part of the piston rod (9), and the right end of the spring is in contact with the top cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111589767.9A CN114227216A (en) | 2021-12-23 | 2021-12-23 | Installation device of oil-free lubrication bearing sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111589767.9A CN114227216A (en) | 2021-12-23 | 2021-12-23 | Installation device of oil-free lubrication bearing sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114227216A true CN114227216A (en) | 2022-03-25 |
Family
ID=80762004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111589767.9A Pending CN114227216A (en) | 2021-12-23 | 2021-12-23 | Installation device of oil-free lubrication bearing sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114227216A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1171269A1 (en) * | 1984-03-21 | 1985-08-07 | Специальное Конструкторско-Технологическое Бюро По Механизации Монтажных Работ И Запасным Частям | Pressing apparatus |
| CN201120543Y (en) * | 2007-11-29 | 2008-09-24 | 长城汽车股份有限公司 | Mounting jig for support sleeve |
| CN202952034U (en) * | 2012-11-20 | 2013-05-29 | 山推工程机械股份有限公司 | Convenient lining press fitting device |
| EA201500633A1 (en) * | 2015-05-29 | 2016-11-30 | Учреждение образования "Белорусский государственный университет транспорта" | DEVICE FOR PRESSING AND RELEASING THE RINGS OF TOWING BEARINGS FOR WHEELED PARTS |
| CN107791002A (en) * | 2016-08-31 | 2018-03-13 | 天津市汇点机电设备开发有限公司 | Movable fan press hydraulic machine |
| CN209614736U (en) * | 2019-02-27 | 2019-11-12 | 中航飞机起落架有限责任公司 | The angle hole edge R pressurizing unit |
-
2021
- 2021-12-23 CN CN202111589767.9A patent/CN114227216A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1171269A1 (en) * | 1984-03-21 | 1985-08-07 | Специальное Конструкторско-Технологическое Бюро По Механизации Монтажных Работ И Запасным Частям | Pressing apparatus |
| CN201120543Y (en) * | 2007-11-29 | 2008-09-24 | 长城汽车股份有限公司 | Mounting jig for support sleeve |
| CN202952034U (en) * | 2012-11-20 | 2013-05-29 | 山推工程机械股份有限公司 | Convenient lining press fitting device |
| EA201500633A1 (en) * | 2015-05-29 | 2016-11-30 | Учреждение образования "Белорусский государственный университет транспорта" | DEVICE FOR PRESSING AND RELEASING THE RINGS OF TOWING BEARINGS FOR WHEELED PARTS |
| CN107791002A (en) * | 2016-08-31 | 2018-03-13 | 天津市汇点机电设备开发有限公司 | Movable fan press hydraulic machine |
| CN209614736U (en) * | 2019-02-27 | 2019-11-12 | 中航飞机起落架有限责任公司 | The angle hole edge R pressurizing unit |
Non-Patent Citations (1)
| Title |
|---|
| 金芸兰: "《机械基础》", 30 June 1995, 人民交通出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220325 |
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| RJ01 | Rejection of invention patent application after publication |