CN117464621A - Small clearance fit bearing jacking assembly device - Google Patents
Small clearance fit bearing jacking assembly device Download PDFInfo
- Publication number
- CN117464621A CN117464621A CN202311383981.8A CN202311383981A CN117464621A CN 117464621 A CN117464621 A CN 117464621A CN 202311383981 A CN202311383981 A CN 202311383981A CN 117464621 A CN117464621 A CN 117464621A
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- Prior art keywords
- jacking
- seat
- bearing
- assembly
- clearance fit
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The application discloses a small clearance fit bearing jacking assembly device, relates to the field of mechanical assembly, and comprises a support body and a jacking body, wherein the support body comprises an assembly base, a support seat and a support column, and the jacking body comprises a jacking seat and a clamping adapter; the support column is connected between the assembly base and the support seat, the jacking seat is arranged between the assembly base and the support seat, and the support column penetrates through the jacking seat and is vertically and slidably connected with the jacking seat; the assembly base is used for placing shaft parts, and the clamping adapter is used for clamping the bearing; the supporting seat is connected with a driving mechanism for driving the jacking seat to move downwards; a reset mechanism for driving the jacking seat to move upwards is arranged between the jacking seat and the assembly base. The precise positioning between the bearing and the shaft parts is realized, and the assembly efficiency and the qualification rate of the small clearance fit bearing are improved.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, and relates to an assembly device, in particular to a small-clearance fit bearing jacking assembly device.
Background
Bearings are an important component in contemporary mechanical devices. Its main functions are to support the mechanical rotator, reduce its friction coefficient in the course of motion and ensure the accuracy of rotation. The assembly method of the bearing comprises a knocking method, a jacking method and a temperature difference method. The knocking method has high requirements on assembly personnel and difficult risk control, the temperature difference method has high requirements on equipment and high cost, and the jacking method is a preferred method for reliably assembling small-batch bearings, so that stable assembly of the bearings with small clearance fit can be realized.
Disclosure of Invention
The technical problem that this application solved is: overcomes the defects of the prior art, provides a small clearance fit bearing jacking assembly device, realizes the accurate positioning between the bearing and the shaft parts, and improves the efficiency and the qualification rate of the small clearance fit bearing assembly.
The technical scheme provided by the application is as follows:
the small clearance fit bearing jacking assembly device comprises a support body and a jacking body, wherein the support body comprises an assembly base, a support seat and a support column, and the jacking body comprises a jacking seat and a clamping adapter; the support column is connected between the assembly base and the support seat, the jacking seat is arranged between the assembly base and the support seat, and the support column penetrates through the jacking seat and is vertically and slidably connected with the jacking seat; the assembly base is used for placing shaft parts, and the clamping adapter is in threaded connection with the jacking seat and is used for clamping the bearing; the supporting seat is connected with a driving mechanism for driving the jacking seat to move downwards; a reset mechanism for driving the jacking seat to move upwards is arranged between the jacking seat and the assembly base.
In one implementation of the assembly device, the reset mechanism includes a guide post and a reset spring, the guide post is connected to the assembly base, the compression spring is sleeved outside the guide post, the guide post passes through the jacking seat and is slidably connected with the jacking seat, one end of the compression spring is in contact with the assembly base, and the other end of the compression spring is in contact with the jacking seat.
In one implementation mode of the assembly device, the assembly base is connected with a bearing positioning seat, the bearing positioning seat is provided with a mounting hole matched with the shaft part, and when the shaft part is placed in the mounting hole, the axis of the shaft part is parallel to the moving direction of the jacking seat; the end of the jacking seat facing the bearing positioning seat is provided with a sealing groove, an O-shaped ring is arranged in the sealing groove, and the axis of the O-shaped ring is parallel to the moving direction of the jacking seat.
In one implementation of the assembly device, the bearing positioning seat is detachably connected with the assembly base; the jacking body comprises a jacking seat and a clamping adapter body, the supporting column penetrates through the jacking seat and is in vertical sliding connection with the jacking seat, the clamping adapter body is detachably connected to the bottom of the jacking seat, and the O-shaped ring is connected to the clamping adapter body to clamp the bearing through elastic deformation.
In one implementation of the assembly device, the assembly base is provided with a step hole, the step hole comprises a first hole and a second hole which are sequentially arranged along the direction of the assembly base to the supporting seat, the diameter of the first hole is larger than that of the second hole, a step surface is formed between the first hole and the second hole, the bottom of the bearing positioning seat is provided with an installation seat, the installation seat is located in the first hole, the end face of the installation seat is in contact with the step surface, and the bearing positioning seat is connected with the assembly base through a bolt.
In one embodiment of the assembly device, the pressure seat is screwed to the clamping adapter.
In one implementation of the assembly device, the driving mechanism includes a pressing post, and the pressing post is screwed with the supporting seat.
In one implementation mode of the assembly device, one end, facing the supporting seat, of the jacking seat is connected with a bearing, the bottom of the jacking column is inserted into the inner ring of the tapered roller bearing, the outer wall of the jacking column is provided with a step surface, and the step surface is in contact with the top of the inner ring of the tapered roller bearing.
In one possible embodiment of the assembly device, the bearing is a tapered roller bearing.
In one implementation of the assembly device, the pressing seat is connected with a guide sleeve through interference fit, and the guide post penetrates through the guide sleeve and is vertically and slidably connected with the guide sleeve.
In summary, the present application at least includes the following beneficial technical effects:
(1) The jacking device can realize semi-automation of bearing assembly, replaces a knocking method by a jacking method, reduces risk operation, and improves efficiency and qualification rate of small clearance fit bearing assembly.
(2) The jacking device provides jacking force by utilizing screw thread precession, and converts rotary motion into linear motion by utilizing a tapered roller bearing.
(3) The pressing device utilizes the elasticity of the O-shaped ring to realize clamping of the bearing, prevents the falling of the assembly process, utilizes the cooperation of the pressing body and the bearing to realize the accurate positioning of the bearing, and ensures the assembly precision.
Drawings
FIG. 1 is a schematic three-dimensional axial view of an embodiment of a small clearance fit bearing press-fit apparatus of the present invention;
FIG. 2 is a schematic front cross-sectional view of a support body of an embodiment of a small clearance fit bearing press-fit assembly device of the present invention;
FIG. 3 is a schematic top cross-sectional view of a support body of an embodiment of a small clearance fit bearing press-fit assembly device of the present invention;
FIG. 4 is a schematic front cross-sectional view of an exemplary press body of a small clearance fit bearing press-fit assembly device of the present invention;
FIG. 5 is a schematic top view of an exemplary press body of a small clearance fit bearing press fitting apparatus according to the present invention;
FIG. 6 is a schematic diagram illustrating the working principle of an embodiment of a small clearance fit bearing press-fit device according to the present invention;
in the figure: 1. a support body; 2. a pressing body; 3. assembling a base; 4. a bearing positioning seat; 5. a guide post; 6. a compression spring; 7. a support column; 8. a support base; 9. jacking the column; 10. a pressing seat; 11. clamping the adapter; 12. an O-ring; 13. tapered roller bearings; 14. a bearing baffle; 15 guide sleeves.
Detailed Description
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The embodiment of the application discloses a small clearance fit bearing jacking assembly device, as shown in fig. 1 and 6, the blanking die comprises a support body 1 and a jacking body 2; the whole support body 1 is arranged on an assembly table top through 4 flange holes which are axially and uniformly distributed on the assembly base 3, and mainly realizes the positioning of shaft parts and the support of jacking force; the jacking body 2 reciprocates in the middle of the supporting body 1 through a guide shaft, and mainly converts screw threads into linear motion, and simultaneously realizes clamping and positioning before assembly of the bearing.
As shown in fig. 2 and 3, the support body 1 includes an assembly base 3, a bearing positioning seat 4, a guide post 5, a compression spring 6, a support column 7, a support seat 8, and a pressing post 9. The assembly base 3 is fixed on the assembly table through 4 flange holes which are uniformly distributed in the axial direction through bolts. The bearing positioning seat 4 is positioned in a matching way through the shaft hole and fixed on the assembly base 3 through a screw, the bearing positioning seat 4 is provided with a placement hole for placing shaft parts, and the placement hole is matched with the shape of the shaft parts; bearing positioning seat 4 and assembly base 3 separate design can be fit for the bearing assembly of certain scope specification, specifically, the step hole has been seted up to assembly base 3, the step hole includes along the directional supporting seat 8 direction of assembly base 3 first hole and the second hole that sets gradually, the diameter of first hole is greater than the diameter of second hole, form the step face between first hole and the second hole, the bottom of bearing positioning seat 4 is provided with the mount pad, the mount pad is located first downthehole, and the terminal surface and the step face contact of mount pad, pass through bolted connection between bearing positioning seat 4 and the assembly base 3. The guide post 5 is fixed on the assembly base 3 through interference fit and is used for guiding the jacking body 2 when moving up and down; the compression spring 6 is sleeved on the guide post 5 and is positioned between the assembly base 3 and the jacking seat 10 and used for resetting the jacking seat 10 after bearing assembly; one end of a support column 7 is assembled on the assembly base 3 through bolts and is used for connecting the assembly base 3 and a support seat 8; the supporting seat 8 is connected with the other end of the supporting column 7 through a bolt and is used for supporting the jacking force; the jacking column 9 is connected with the supporting seat 8 through threads and is used for generating jacking force. The guide posts 5 and the support posts 7 are all arranged in a plurality, and the guide posts 5 and the support posts 7 are uniformly distributed on the assembly base 3 in a circumferential direction in sequence.
As shown in fig. 4 and 5, the pressing body 2 comprises a pressing seat 10, a clamping adapter 11, an O-ring 12, a tapered roller bearing 13, a bearing baffle 14 and a guide sleeve 15; the jacking seat 10 is arranged between the assembly base 3 and the supporting seat 8 in a guiding way by utilizing the guide column 5, the guide column 5 and the supporting column 7 penetrate through the jacking seat 10 and are vertically and slidably connected with the jacking seat 10, and the jacking seat 10 is in clearance fit with the supporting column 7; the clamping adapter 11 is in threaded connection with the jacking seat 10, the O-shaped ring 12 is arranged in a sealing groove of the clamping adapter 11, and elastic deformation of the O-shaped ring 12 is used for clamping a bearing to replace manual clamping; the tapered roller bearing 13 is mounted at the top of the jacking seat 10 through transition fit, the bottom of the jacking column 9 is inserted into the inner ring of the tapered roller bearing 13, the bottom of the jacking column 9 is in clearance fit with the inner ring of the tapered roller bearing 13, the outer wall of the jacking column 9 is provided with a step surface, the step surface is contacted with the top of the inner ring of the tapered roller bearing 13, the friction force between the step surface and the top of the inner ring of the tapered roller bearing 13 is greater than the friction force between the inner ring and the outer ring of the tapered roller bearing 13, so that the jacking column rotates to drive the inner ring of the tapered roller bearing 12 to rotate, and meanwhile, the jacking seat 10 moves vertically and linearly, so that the rotary motion of the jacking column 9 can be converted into the linear motion of the jacking seat 10; the tapered roller bearing 13 is arranged so that it can bear relatively large axial force; the bearing baffle 14 is fixed on the jacking seat 10 through bolts and is used for axially fixing the tapered roller bearing 13; the guide sleeve 15 is fixed on the jacking seat 10 through interference fit, and the guide sleeve 15 is processed by using alloy tool steel after heat treatment, so that the hardness and the wear resistance of the guide sleeve can be improved.
The clamping adapter 11 in the jacking body 2 is in threaded connection with the bottom of the jacking seat 10, the sealing groove with a circular cross section is arranged at the bottom end of the clamping adapter 11, and the O-shaped ring 12 is arranged in the sealing groove. The detachable replacement of the clamping adapter 11 is realized through the structure, so that the clamping adapter 11 with the sealing grooves with different diameters can be replaced, and bearings with different diameters can be clamped.
The working principle and the working flow of the small clearance fit bearing jacking assembly device are as follows:
under the state that the jacking body 2 is in situ, firstly, the shaft part is placed on the bearing positioning seat 4, then the bearing is clamped on the jacking body 2 by utilizing the elasticity of the O-shaped ring 12, then the jacking column 9 is rotated by utilizing the ratchet wrench (the power output by the motor can be utilized to replace manual work), so that the jacking body 2 moves downwards, after the bearing is contacted with the shaft part, the shaft part is automatically adjusted and accurately positioned due to the fact that the end face chamfer of the shaft part is in clearance fit with the bearing and the jacking seat 10, then the end face of the bearing is stably assembled by uniform pressure and the shaft part, and the rejection rate of the assembly process of a knocking method is reduced. After the assembly is in place, the friction force between the bearing and the O-shaped ring 12 is smaller than the friction force between the bearing and the shaft part, and the compression spring 6 resets the jacking body 2 in the process of screwing out the jacking column 9, so that the bearing and the jacking body 2 are separated.
The "upper", "lower", "left", "right", etc. used in the installation positions or directions of the structures or components in this embodiment are based on the orientations of the given drawings, which are merely for convenience of description, and are not meant to represent the orientations of the small clearance fit bearing press-fit device in this embodiment.
The foregoing detailed description has been provided for the purposes of illustration in connection with specific embodiments and exemplary examples, but such description is not to be construed as limiting the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications and improvements may be made to the technical solution of the present application and its embodiments without departing from the spirit and scope of the present application, and these all fall within the scope of the present application. The scope of the application is defined by the appended claims.
What is not described in detail in the present specification is a well known technology to those skilled in the art.
Claims (10)
1. The utility model provides a little clearance fit bearing roof pressure assembly quality which characterized in that: the device comprises a supporting body (1) and a jacking body (2), wherein the supporting body (1) comprises an assembly base (3), a supporting seat (8) and a supporting column (7);
the support column (7) is connected between the assembly base (3) and the support seat (8), the jacking body (2) is positioned between the assembly base (3) and the support seat (8), and the support column (7) penetrates through the jacking seat (10) and is vertically and slidably connected with the jacking seat (10); the assembly base (3) is used for placing shaft parts, and the jacking body (2) is used for clamping the bearing; the supporting seat (8) is connected with a driving mechanism for driving the jacking body (2) to move downwards;
a reset mechanism for driving the jacking seat (10) to move upwards is arranged between the jacking seat (10) and the assembly base (3).
2. The small clearance fit bearing press-fit assembly device of claim 1, wherein: the reset mechanism comprises a guide post (5) and a reset spring, the guide post (5) is connected to the assembly base (3), the compression spring (6) is sleeved outside the guide post (5), the guide post (5) penetrates through the jacking seat (10) and is in sliding connection with the jacking seat (10), one end of the compression spring (6) is in contact with the assembly base (3), and the other end of the compression spring is in contact with the jacking seat (10).
3. The small clearance fit bearing press-fit assembly device of claim 1, wherein: the assembly base (3) is connected with a bearing positioning seat (4), the bearing positioning seat (4) is provided with a mounting hole matched with the shaft part, and when the shaft part is placed in the step hole, the axis of the shaft part is parallel to the moving direction of the jacking body (2); the end part of the jacking body (2) facing the bearing positioning seat (4) is provided with a sealing groove, an O-shaped ring (12) is arranged in the sealing groove, and the axis of the O-shaped ring (12) is parallel to the moving direction of the jacking seat (10).
4. A small clearance fit bearing press fit assembly device as claimed in claim 3, wherein: the bearing positioning seat (4) is detachably connected with the assembly base (3); the jacking body (2) comprises a jacking seat (10) and a clamping adapter body (11), the supporting column (7) penetrates through the jacking seat (10) and is vertically and slidably connected with the jacking seat (10), the clamping adapter body (11) is detachably connected to the bottom of the jacking seat (10), the sealing groove is formed in the bottom end of the clamping adapter body (11), and the bearing is arranged in an O-shaped ring (12) in the sealing groove.
5. The small clearance fit bearing press-fit assembly device of claim 4, wherein: the assembly base (3) is provided with a step hole, the step hole comprises a first hole and a second hole which are sequentially arranged along the direction of the assembly base (3) to the supporting seat (8), the diameter of the first hole is larger than that of the second hole, a step surface is formed between the first hole and the second hole, the bottom of the bearing positioning seat (4) is provided with a mounting seat, the mounting seat is positioned in the first hole, the end face of the mounting seat is contacted with the step surface, and the bearing positioning seat (4) is connected with the assembly base (3) through bolts.
6. The small clearance fit bearing press-fit assembly device of claim 4, wherein: the jacking seat (10) is in threaded connection with the clamping adapter body (11).
7. The small clearance fit bearing press-fit assembly device of claim 1, wherein: the driving mechanism comprises a jacking column (9), and the jacking column (9) is in threaded connection with the supporting seat (8).
8. The small clearance fit bearing press-fit assembly device of claim 7, wherein: the bearing is installed towards one end of the supporting seat (8) of the jacking seat (10), the bottom of the jacking column (9) is inserted into the inner ring of the tapered roller bearing (13), the outer wall of the jacking column (9) is provided with a step surface, and the step surface is contacted with the top of the inner ring of the tapered roller bearing (13).
9. The small clearance fit bearing press-fit assembly device of claim 8, wherein: the bearing is a tapered roller bearing (13).
10. The small clearance fit bearing press-fit assembly device of claim 2, wherein: the jacking seat (10) is connected with a guide sleeve (15) through interference fit, and the guide column (5) penetrates through the guide sleeve (15) and is vertically and slidably connected with the guide sleeve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311383981.8A CN117464621A (en) | 2023-10-24 | 2023-10-24 | Small clearance fit bearing jacking assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311383981.8A CN117464621A (en) | 2023-10-24 | 2023-10-24 | Small clearance fit bearing jacking assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117464621A true CN117464621A (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311383981.8A Pending CN117464621A (en) | 2023-10-24 | 2023-10-24 | Small clearance fit bearing jacking assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117464621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118181219A (en) * | 2024-05-14 | 2024-06-14 | 哈尔滨东安实业发展有限公司 | Bearing inner ring mounting and loading device for aero-engine research and development and application method thereof |
-
2023
- 2023-10-24 CN CN202311383981.8A patent/CN117464621A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118181219A (en) * | 2024-05-14 | 2024-06-14 | 哈尔滨东安实业发展有限公司 | Bearing inner ring mounting and loading device for aero-engine research and development and application method thereof |
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