CN220533455U - Bidirectional press-fitting device for assembling bearing wheel shaft sleeve - Google Patents
Bidirectional press-fitting device for assembling bearing wheel shaft sleeve Download PDFInfo
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- CN220533455U CN220533455U CN202322113055.0U CN202322113055U CN220533455U CN 220533455 U CN220533455 U CN 220533455U CN 202322113055 U CN202322113055 U CN 202322113055U CN 220533455 U CN220533455 U CN 220533455U
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- shaft
- shaft sleeve
- press
- thrust wheel
- positioning
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Abstract
The utility model belongs to the field of engineering machinery, and particularly relates to a bidirectional press-fitting device for assembling a thrust wheel shaft sleeve, wherein the thrust wheel shaft sleeve comprises an upper shaft sleeve and a lower shaft sleeve, and the bidirectional press-fitting device comprises a shaft sleeve pressure head, a positioning shaft and a thrust wheel positioning block; the positioning shaft is fixed on a base of the press, and a shaft sleeve limiting protrusion for supporting the lower shaft sleeve is arranged on the positioning shaft; the supporting wheel positioning block is arranged on the base of the press machine through an elastic piece and is used for supporting a supporting wheel body sleeved on the positioning shaft; the shaft sleeve pressure head is arranged on a telescopic pressure rod at the upper end of the press machine, and a press-fit hole for matching with the positioning shaft is formed in the middle of the shaft sleeve pressure head. According to the utility model, the lower shaft sleeve, the thrust wheel body and the upper shaft sleeve are sequentially sleeved on the same positioning shaft, and the shaft sleeves at the two ends of the thrust wheel body are assembled through one-time press fitting, so that the assembly efficiency is improved, and the coaxiality between the two shaft sleeves at the two ends of the assembled thrust wheel body is ensured.
Description
Technical Field
The utility model belongs to the field of engineering machinery, and particularly relates to a bidirectional press-fitting device for assembling a thrust wheel shaft sleeve.
Background
The thrust wheel is an important spare part in engineering machine tool chassis spare four-wheel area, mainly used supports the weight of host computer, lets the track travel along the wheel, and the both ends of every thrust wheel body all have the interference equipment axle sleeve, among the prior art, axle sleeve and thrust wheel body assembly flow are: firstly, a shaft sleeve is placed into a shaft sleeve pressing tool, then the shaft sleeve is pressed into an inner hole of the thrust wheel body through the shaft sleeve pressing tool, then the thrust wheel body is turned over, the shaft sleeve at the other end of the thrust wheel body is pressed in the same process, and the assembled workpiece is obtained after the pressing. The assembling mode can only assemble the shaft sleeve at one end of the thrust wheel body at a time, and the shaft sleeve is low in assembling efficiency and high in assembling strength. In addition, the shaft sleeves at the two ends of the thrust wheel body are poor in coaxiality after being assembled by the assembly mode.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides the bidirectional press-fitting device for assembling the bearing wheel shaft sleeves, which is characterized in that the bearing wheel body and the two shaft sleeves are sleeved on the same positioning shaft together, and the shaft sleeves at the two ends of the bearing wheel body are assembled through one-time press-fitting, so that the assembly efficiency is improved, and the coaxiality between the two shaft sleeves at the two ends of the assembled bearing wheel body is ensured.
The utility model is realized by the following technical scheme: the bidirectional press-fitting device for assembling the bearing wheel shaft sleeve comprises an upper shaft sleeve and a lower shaft sleeve, and comprises a shaft sleeve pressing head, a bearing wheel positioning block and a positioning shaft for sleeving the upper shaft sleeve, the bearing wheel body and the lower shaft sleeve from top to bottom in sequence;
the positioning shaft is fixed on a base of the press, and a shaft sleeve limiting protrusion for supporting the lower shaft sleeve is arranged on the positioning shaft;
the supporting wheel positioning block is arranged on the base of the press machine through an elastic piece and is used for supporting a supporting wheel body sleeved on the positioning shaft;
the shaft sleeve pressure head is arranged on a telescopic pressure rod at the upper end of the press machine, and a press-fit hole for matching with the positioning shaft is formed in the middle of the shaft sleeve pressure head.
In some embodiments, the positioning shaft is a stepped shaft comprising a first shaft body and a second shaft body, the first shaft body is located above the second shaft body, and the diameter of the first shaft body is smaller than the diameter of the second shaft body.
In some embodiments, the sleeve-limiting projection is a shoulder formed between the first shaft body and the second shaft body.
In some embodiments, a lower connecting plate is arranged on the base of the press, the lower connecting plate is connected with the connecting plate through a bolt, and the lower end of the positioning shaft is in threaded connection with the connecting plate.
In some embodiments, the resilient member is a spring.
In some embodiments, four sets of springs are evenly arranged between the thrust wheel positioning block and the connecting plate in an annular shape.
In some embodiments, the underside of the thrust wheel positioning block is provided with a spring slot for housing the spring.
In some embodiments, the device further comprises a spring guide screw, the spring guide screw is in threaded connection with the connecting plate, the spring is sleeved on the spring guide screw, and a gap is reserved between the top of the spring guide screw and the bottom of the spring groove of the thrust wheel positioning block.
In some embodiments, an upper connecting plate is connected to a pressure rod of the press, and the shaft sleeve pressure head is in threaded connection with the upper connecting plate.
The beneficial effects of the utility model are as follows: according to the utility model, the supporting wheel body and the two shaft sleeves are sleeved on the same positioning shaft together, and the shaft sleeves at the two ends of the supporting wheel body are assembled through one-time press fitting, so that the assembly efficiency is improved, the coaxiality between the two shaft sleeves at the two ends of the assembled supporting wheel body is ensured, and the assembly precision is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the present utility model when assembled;
in the figure, 1, an upper connecting plate, 2, a shaft sleeve pressure head, 3, a positioning shaft, 3-1, a shaft sleeve limiting protrusion, 4, a thrust wheel positioning block, 5, an elastic piece, 6, a spring guide screw, 7, a connecting plate, 8, a lower connecting plate, 9, an upper shaft sleeve, 10, a thrust wheel body, 11 and a lower shaft sleeve.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
As shown in fig. 1 and 2, a bidirectional press-fitting device for assembling a thrust wheel bushing includes an upper bushing 9 and a lower bushing 11, the upper bushing 9 and the lower bushing 11 being adapted to be assembled at both ends of a thrust wheel body 10, respectively. The bidirectional press-fitting device comprises a shaft sleeve pressing head 2, a positioning shaft 3 and a thrust wheel positioning block 4.
Specifically, the positioning shaft 3 is fixed on a base of the press, and when the press is assembled, the lower shaft sleeve 11, the thrust wheel body 10 and the upper shaft sleeve 9 are sequentially sleeved on the positioning shaft 3, the positioning shaft 3 is provided with a shaft sleeve limiting protrusion 3-1 for supporting the lower shaft sleeve 11, and the shaft sleeve limiting protrusion 3-1 is used for limiting the axial position of the lower shaft sleeve 11 relative to the positioning shaft 3.
The supporting wheel positioning block 4 is arranged on a base of the press machine through an elastic piece 5, and the supporting wheel positioning block 4 is used for supporting a supporting wheel body 10 sleeved on the positioning shaft 3; during assembly, the thrust wheel body 10 moves downwards along the axial direction of the positioning shaft 3 by pressing, and the lower shaft sleeve 11 and the upper shaft sleeve 9 are assembled with the thrust wheel body 10 respectively. After the thrust wheel body 10 loses the externally applied press-fitting force, the elastic member 5 pushes the thrust wheel positioning block 4 and the thrust wheel body 10 back up in the axial direction of the positioning shaft 3.
The shaft sleeve pressure head 2 is arranged on a telescopic pressure rod at the upper end of the press, and a press-fit hole for matching with the positioning shaft 3 is formed in the middle of the shaft sleeve pressure head 2. During assembly, the pressure rod drives the shaft sleeve pressure head 2 to move downwards, after the shaft sleeve pressure head 2 contacts with the upper shaft sleeve 9, the thrust wheel body 10 and the thrust wheel positioning block 4 are pushed to move downwards, the lower shaft sleeve 11 is fixed relative to the positioning shaft 3, and finally the upper shaft sleeve 9 and the lower shaft sleeve 11 are pressed into the inner holes of the thrust wheel body 10, so that an assembled workpiece is obtained. The press-fitting hole of the shaft sleeve pressing head 2 is prevented from interfering with the positioning shaft 3 in the process of assembling the thrust wheel shaft sleeve.
The working principle of the utility model is that when the assembly operation of the bearing wheel shaft sleeve is carried out, the lower shaft sleeve 11, the bearing wheel body 10 and the upper shaft sleeve 9 are sleeved on the positioning shaft 3 in sequence, then the press is started, the pressure rod is driven to drive the shaft sleeve pressing head 2 to move downwards, when the shaft sleeve pressing head 2 contacts with the upper shaft sleeve 9, the bearing wheel body 10 and the bearing wheel positioning block 4 are pushed to move downwards along the axial direction of the positioning shaft 3, the lower shaft sleeve 11 is limited by the shaft sleeve limiting bulge 3-1 and relatively does not move, after the shaft sleeve pressing head 2 is pressed in place, the upper shaft sleeve 9 and the lower shaft sleeve 11 are pressed into the inner holes of the bearing wheel body 10 in a uniform pressure mode, the assembly is completed, then the pressure rod returns, and the elastic piece 5 reversely pushes the bearing wheel positioning block 4 and the bearing wheel body 10 to reset upwards along the axial direction of the positioning shaft 3.
As shown in fig. 2, in some embodiments, the positioning shaft 3 is a stepped shaft including a first shaft body and a second shaft body, the first shaft body is located above the second shaft body, and the diameter of the first shaft body is smaller than the diameter of the second shaft body. The first shaft body of the positioning shaft 3 is used for sleeving the lower shaft sleeve 11, the thrust wheel body 10 and the upper shaft sleeve 9; the shaft shoulder formed between the first shaft body and the second shaft body is used as a shaft sleeve limiting protrusion 3-1 for axially limiting the lower shaft sleeve 11.
As shown in fig. 1, in some embodiments, a lower connecting plate 8 is provided on the base of the press, a connecting plate 7 is connected to the lower connecting plate 8 through a bolt, and the lower end of the positioning shaft 3 is in threaded connection with the connecting plate 7. An upper connecting plate 1 is connected to a pressure rod of the press, and the shaft sleeve pressure head 2 is in threaded connection with the upper connecting plate 1. The design can be used for replacing the corresponding connecting plate 7, the positioning shaft 3 and the shaft sleeve pressure head 2 according to different specifications of the supporting body 10.
In some embodiments, as shown in fig. 1 and 2, the elastic member 5 is a spring. Four sets of springs are evenly distributed between the thrust wheel positioning block 4 and the connecting plate 7 in an annular mode. The lower side of the thrust wheel positioning block 4 is provided with a spring groove for sleeving the spring, and the spring groove is used for limiting the spring.
In order to avoid the deviation of the spring during the extension and retraction process, as shown in fig. 1, in some embodiments, the utility model further comprises a spring guide screw 6, wherein the spring guide screw 6 is in threaded connection with a connecting plate 7, the spring is sleeved on the spring guide screw 6, and a gap is left between the top of the spring guide screw 6 and the bottom of a spring groove of the thrust wheel positioning block 4, wherein the gap is such that the spring guide screw 6 does not interfere with the thrust wheel positioning block 4 before the shaft sleeve pressing head 2 is pressed into place, i.e. enough downward movement space of the thrust wheel positioning block 4 is ensured, so that the thrust wheel shaft sleeve can be assembled into place.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical solutions of the present utility model.
Claims (9)
1. Bidirectional press-fitting device for assembling supporting wheel shaft sleeves, wherein the supporting wheel shaft sleeves comprise an upper shaft sleeve (9) and a lower shaft sleeve (11), and are characterized in that: the bidirectional press-fitting device comprises a shaft sleeve pressing head (2), a thrust wheel positioning block (4) and a positioning shaft (3) which is used for sleeving an upper shaft sleeve (9), a thrust wheel body (10) and a lower shaft sleeve (11) from top to bottom in sequence;
the positioning shaft (3) is fixed on a base of the press, and a shaft sleeve limiting protrusion (3-1) for supporting the lower shaft sleeve (11) is arranged on the positioning shaft (3);
the supporting wheel positioning block (4) is arranged on the base of the press machine through an elastic piece (5), and the supporting wheel positioning block (4) is used for supporting a supporting wheel body (10) sleeved on the positioning shaft (3);
the shaft sleeve pressure head (2) is arranged on a telescopic pressure rod at the upper end of the press, and a press-fit hole for matching with the positioning shaft (3) is formed in the middle of the shaft sleeve pressure head (2).
2. A bi-directional press-fit apparatus for assembling a thrust wheel bushing as claimed in claim 1, wherein: the positioning shaft (3) is a stepped shaft comprising a first shaft body and a second shaft body, the first shaft body is positioned above the second shaft body, and the diameter of the first shaft body is smaller than that of the second shaft body.
3. A bi-directional press-fit apparatus for assembling a thrust wheel bushing as claimed in claim 2, wherein: the shaft sleeve limiting protrusion (3-1) is a shaft shoulder formed between the first shaft body and the second shaft body.
4. A bi-directional press-fit apparatus for assembling a thrust wheel bushing as claimed in claim 1, wherein: the base of the press is provided with a lower connecting plate (8), the lower connecting plate (8) is connected with a connecting plate (7) through a bolt, and the lower end of the positioning shaft (3) is in threaded connection with the connecting plate (7).
5. The bi-directional press-fit device for assembling a thrust wheel bushing of claim 4, wherein: the elastic piece (5) is a spring.
6. The bi-directional press-fit device for assembling a thrust wheel bushing of claim 5, wherein: four sets of springs are evenly distributed between the thrust wheel positioning block (4) and the connecting plate (7) in an annular mode.
7. The bi-directional press-fit device for assembling a thrust wheel bushing of claim 6, wherein: the lower side of the thrust wheel positioning block (4) is provided with a spring groove for sleeving the spring.
8. The bi-directional press-fit device for assembling a thrust wheel bushing of claim 7, wherein: the spring guide screw (6) is in threaded connection with the connecting plate (7), the spring is sleeved on the spring guide screw (6), and a gap is reserved between the top of the spring guide screw (6) and the bottom of a spring groove of the thrust wheel positioning block (4).
9. A bi-directional press-fit apparatus for assembling a thrust wheel bushing as claimed in claim 1, wherein: an upper connecting plate (1) is connected to a pressure rod of the press, and the shaft sleeve pressure head (2) is in threaded connection with the upper connecting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322113055.0U CN220533455U (en) | 2023-08-08 | 2023-08-08 | Bidirectional press-fitting device for assembling bearing wheel shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322113055.0U CN220533455U (en) | 2023-08-08 | 2023-08-08 | Bidirectional press-fitting device for assembling bearing wheel shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220533455U true CN220533455U (en) | 2024-02-27 |
Family
ID=89968062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322113055.0U Active CN220533455U (en) | 2023-08-08 | 2023-08-08 | Bidirectional press-fitting device for assembling bearing wheel shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220533455U (en) |
-
2023
- 2023-08-08 CN CN202322113055.0U patent/CN220533455U/en active Active
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