CN216399489U - Many sizes interchangeable connects bearing pressure equipment mechanism - Google Patents
Many sizes interchangeable connects bearing pressure equipment mechanism Download PDFInfo
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- CN216399489U CN216399489U CN202121972439.2U CN202121972439U CN216399489U CN 216399489 U CN216399489 U CN 216399489U CN 202121972439 U CN202121972439 U CN 202121972439U CN 216399489 U CN216399489 U CN 216399489U
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Abstract
The utility model provides a multi-size joint-changeable bearing press-fitting mechanism which comprises two independent structures of a bearing pressed on a central shaft and a bearing pressed in a bearing seat, wherein inner/outer bearing adapter joints with corresponding specifications are designed aiming at bearings with different specifications, the quick press-fitting of the bearings with different specifications can be realized by replacing the adapter joints, and the multi-size joint-changeable bearing press-fitting mechanism is suitable for the inner and outer press-fitting of the bearings in various industries. The utility model designs the adapter joints with different sizes through the bearings with different specifications, the integrated design greatly improves the efficiency of pressing the bearing into the central shaft or the bearing seat, and simultaneously ensures the press mounting quality of the bearing through the requirements of size and form and position tolerance.
Description
Technical Field
The utility model belongs to the field of machinery, and particularly relates to a multi-size replaceable joint bearing press-fitting mechanism.
Background
The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body. The bearing is widely applied to various industries such as aviation, aerospace, ships, communication and automobiles, along with the rapid development of various industries, the requirements and quality requirements on the bearing are increasingly strict, and the production progress and reliability of products are directly influenced by the efficiency and quality of bearing press mounting.
The bearing press fitting is generally divided into two conditions that the bearing is pressed on the central shaft and the bearing is pressed into the bearing seat, and the condition that the size of the tool is difficult to match or the precision of the joint surface of the tool is unqualified usually exists during the press fitting, so that the press fitting quality and the product delivery are directly influenced.
Disclosure of Invention
The technical problem solved by the utility model is as follows: in order to solve the defects of the prior art, the utility model provides a multi-size interchangeable joint bearing press-fitting mechanism.
The technical scheme of the utility model is as follows: a multi-size interchangeable joint bearing press-fitting mechanism comprises a three-jaw chuck and is characterized by further comprising an inner press-fitting assembly and an outer press-fitting assembly;
the external press-fitting assembly comprises a bearing press-fitting seat and a bearing external press-fitting adapter, the bearing external press-fitting adapter is provided with a through hole along the central axis, the outer wall of one end of the bearing external press-fitting adapter is fixedly connected with the bearing press-fitting seat, and the other end of the bearing external press-fitting adapter can be matched with a bearing to be pressed; one end of the central shaft to be pressed is fixed through a three-jaw chuck, and the other end of the central shaft to be pressed can be opposite to the bearing to be pressed;
the size of a port, matched with a bearing, of the bearing external pressing adapter is selected according to the size of the bearing to be pressed, the bearing pressing seat, the bearing external pressing adapter, the bearing, the central shaft and the three-jaw chuck are overlapped in an axial line mode, the bearing external pressing adapter is aligned with the end face of the bearing inner ring, and the bearing external pressing adapter can press the bearing into the designated position of the central shaft under the driving of an oil press;
the internal press-fitting assembly comprises a bearing press-fitting plate and a bearing internal press-fitting adapter; one end of the bearing internal-pressing adapter is fixedly connected with the bearing press-fitting plate, and the other end of the bearing internal-pressing adapter can be matched with a bearing to be pressed; the lower end of the bearing seat to be pressed is fixed on the three-jaw chuck;
selecting the size of a port, matched with the bearing, of the bearing press-fitting adapter according to the size of the bearing to be pressed; the bearing press-fitting plate, the bearing seat, the bearing inner press-fitting adapter, the bearing and the three-jaw chuck are axially overlapped; the bearing inner press fitting adapter is aligned with the end face of the bearing outer ring; the bearing is pressed into the designated position of the bearing seat by the press fitting adapter in the bearing under the driving of the oil press.
The utility model further relates toThe technical scheme is as follows: the bearing external press-fitting adapter is a second-order columnar body, and is provided with a through hole along the axis; the outer wall of the large-diameter end is provided with threads which are matched with the inner wall of the bearing press-fitting seat in a threaded manner, and the small-diameter end is matched with the bearing; defining the thickness between the outer wall and the inner wall of the small-diameter end as T and the inner diameter of the through hole as D; the size of the hole D is consistent with that of the crimped bearing inner ring, and when the inner diameter size PhiD of the bearing is less than or equal to 3mm, the size of the size T is 2 +/-0.1 mm; when in use
When the size T is 3.5 +/-0.1 mm; when in use
When the size T is 5 +/-0.1 mm; when in use
When the size T is 8 +/-0.1 mm; when in use
The dimension T is 10. + -. 0.1 mm.
The further technical scheme of the utility model is as follows: the roughness of the end face of the pressure welding bearing of the pressure welding adapter outside the bearing is Ra0.8 mu m, the parallelism of the end face and the upper end face is not more than 0.02, and the verticality of the excircle of the pressure welding bearing and the upper end face is not more than 0.02.
The further technical scheme of the utility model is as follows: and the parallelism between the inner end surface of the bearing press-mounting seat and the stressed outer end surface is not more than 0.03.
The further technical scheme of the utility model is as follows: the bearing inner press-fitting adapter is integrally a cylindrical body, a blind hole is formed in one end of the bearing inner press-fitting adapter, a threaded hole is formed in the other end of the bearing inner press-fitting adapter along the axis, and the axes of the two holes are overlapped; the threaded hole end is fixedly connected with the bearing press-mounting plate, and the blind hole end is connected with the bearing; defining the thickness of the inner wall and the outer wall of the blind hole end as T, and the inner diameter of the blind hole as D; the size of the hole D is consistent with that of the crimped bearing inner ring, and when the inner diameter size PhiD of the bearing is less than or equal to 3mm, the size of the size T is 2 +/-0.1 mm; when in use
When the size T is 3.5 +/-0.1 mm; when in use
When the size T is 5 +/-0.1 mm; when in use
When the size T is 8 +/-0.1 mm; when in use
The dimension T is 10. + -. 0.1 mm.
The further technical scheme of the utility model is as follows: the roughness of the end face of the pressure-connection adapter pressed in the bearing is Ra0.8 mu m, the parallelism between the end face and the upper end face is not more than 0.02, and the verticality between the excircle of the pressure-connection adapter pressed in the bearing and the upper end face is not more than 0.02.
Effects of the utility model
The utility model has the technical effects that: the utility model provides a multi-size joint-changeable bearing press-fitting mechanism which comprises two independent structures of a bearing pressed on a central shaft and a bearing pressed in a bearing seat, wherein inner/outer bearing adapter joints with corresponding specifications are designed aiming at bearings with different specifications, the quick press-fitting of the bearings with different specifications can be realized by replacing the adapter joints, and the multi-size joint-changeable bearing press-fitting mechanism is suitable for the inner and outer press-fitting of the bearings in various industries. The utility model designs the adapter joints with different sizes through the bearings with different specifications, the integrated design greatly improves the efficiency of pressing the bearing into the central shaft or the bearing seat, and simultaneously ensures the press mounting quality of the bearing through the requirements of size and form and position tolerance.
Drawings
FIG. 1 is a schematic view of the dimensions of the bearing external press-fitting adapter
FIG. 2 is a schematic view showing a state where the outer portion of the bearing is pressed into the central shaft
FIG. 3 is a schematic view showing a state where a bearing seat is pressed into a bearing
Description of reference numerals: 1-bearing press mounting seat; 2-pressing the adapter outside the bearing; 3-a bearing; 4-central axis; 5-a three-jaw chuck; 6-bearing press mounting plate; 7-bearing seats; 8-bearing inner press-fit adapter
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-3, the mechanism comprises two independent structures of an inner press-fitting component and an outer press-fitting component, wherein the outer press-fitting component comprises a bearing press-fitting seat 1, a bearing outer press-fitting adapter 2, a bearing 3, a central shaft 4 and a three-jaw chuck 5. The bearing external pressing adapter is used for manufacturing a whole set of quick-change connectors according to the size of a bearing, the manufacturing precision and the requirement are qualified, the bearing pressing seat and the bearing external pressing adapter are designed in a one-to-many mode, the quick pressing of bearings of various specifications is realized by continuously replacing adapters of different sizes, and the pressing quality of the bearing is guaranteed by guaranteeing the form and position tolerance requirement of the pressing surface of the bearing.
The parallelism between the inner end surface of the bearing press-fitting seat 1 and the stressed outer end surface is not more than 0.03, and the inner end surface is chamfered, so that the outer press-fitting adapter 2 of the bearing can be screwed to the bottom.
The size of the bearing external press fitting adapter 2 is shown in figure 1, the roughness of the end face at the position where the bearing is pressed is Ra0.8 mu m, the parallelism between the end face and the upper end face is not more than 0.02, and the perpendicularity between the excircle at the position where the bearing is pressed and the upper end face is not more than 0.02. Wherein, the size T determines the strength of the crimping part, thereby directly influencing the use frequency of the crimping mechanism and the crimping quality of the bearing, the selection standard of the size T is larger than the inner diameter of the bearing and smaller than the inner diameter of the bearing outer ring, the size of the hole phi D is consistent with the size of the crimped bearing inner ring, and when the size of the inner diameter of the bearing phi D is less than or equal to 3mm, the size of the size T is 2 +/-01 mm; when in use
When the size T is 3.5 +/-0.1 mm; when in use
When the size T is 5 +/-0.1 mm; when in use
When the size T is 8 +/-0.1 mm; when in use
The dimension T is 10. + -. 0.1 mm.
When an external press-fit assembly is adopted, the working process of the mechanism is as follows:
step 1: selecting a bearing external press-fit adapter with a corresponding size according to the actual size of the bearing;
step 2: screwing and screwing the bearing press-fitting seat and the bearing external press-fitting adapter;
and step 3: aligning the center of the three-jaw chuck with the center of the oil press, and fixing the three-jaw chuck on the operating table top;
and 4, step 4: fixing the central shaft on the three-jaw chuck, and ensuring that the axis of the central shaft is superposed with the axis of the three-jaw chuck without generating deflection;
and 5: horizontally sleeving a bearing at the upper end part of the central shaft;
step 6: aligning the end face of the conversion joint outside the bearing with the end face of the bearing inner ring, and keeping the butt joint face horizontal;
and 7: and the oil press slowly applies force from the upper end surface of the bearing press-fitting seat, checks whether abnormal conditions exist or not when the bearing is integrally pressed into the central shaft, and presses the bearing to the shaft shoulder if the abnormal conditions do not exist.
When adopting the internal pressure equipment subassembly, the working process of this mechanism is:
step 1: selecting a bearing external press-fit adapter with a corresponding size according to the actual size of the bearing;
step 2: screwing and screwing the bearing press mounting plate and the bearing press mounting adapter;
and step 3: aligning the center of the three-jaw chuck with the center of the oil press, and fixing the three-jaw chuck on the operating table top;
and 4, step 4: fixing a bearing seat on the three-jaw chuck, and ensuring that the bearing seat is overlapped with the axis of the three-jaw chuck without generating deflection;
and 5: horizontally sleeving a bearing on the upper end part of a bearing seat;
step 6: aligning the end face of the bearing internal pressing conversion joint with the end face of the bearing outer ring, and keeping the butt joint face horizontal;
and 7: the oil press slowly applies force from the upper end face of the bearing press-fitting seat, when the bearing is integrally pressed into the bearing seat, whether abnormal conditions exist is checked, and if the abnormal conditions do not exist, the bearing is pressed to the shaft shoulder.
Claims (6)
1. A multi-size interchangeable joint bearing press-fitting mechanism comprises a three-jaw chuck (5), and is characterized by further comprising an inner press-fitting assembly and an outer press-fitting assembly;
the external press fitting assembly comprises a bearing press fitting seat (1) and a bearing external press fitting adapter (2), the bearing external press fitting adapter (2) is provided with a through hole along the central axis, the outer wall of one end of the bearing external press fitting adapter is fixedly connected with the bearing press fitting seat (1), and the other end of the bearing external press fitting adapter can be matched with a bearing (3) to be pressed; one end of the central shaft (4) to be pressed is fixed through a three-jaw chuck (5), and the other end of the central shaft can be opposite to the bearing (3) to be pressed;
the size of a port, matched with a bearing, of a bearing outer press fitting adapter (2) is selected according to the size of the bearing to be pressed, the axes of a bearing press fitting seat (1), the bearing outer press fitting adapter (2), the bearing (3), a central shaft (4) and a three-jaw chuck (5) are overlapped, the bearing outer press fitting adapter (2) is aligned with the end face of an inner ring of the bearing (3), and the bearing (3) can be pressed into the specified position of the central shaft (4) by the bearing outer press fitting adapter (2) under the driving of an oil press;
the inner press-fitting assembly comprises a bearing press-fitting plate (6) and a bearing inner press-fitting adapter (8); one end of the bearing inner press fitting adapter (8) is fixedly connected with the bearing press fitting plate (6), and the other end of the bearing inner press fitting adapter can be matched with the bearing (3) to be pressed; the lower end of the bearing seat (7) to be pressed is fixed on the three-jaw chuck (5);
selecting the size of a port, matched with the bearing, of a press fitting adapter (8) in the bearing according to the size of the bearing to be press fitted; the axes of the bearing press-fitting plate (6), the bearing seat (7), the bearing inner press-fitting adapter (8), the bearing (3) and the three-jaw chuck (5) are overlapped; the bearing inner press fitting adapter (8) is aligned with the end face of the outer ring of the bearing (3); the bearing inner press-fitting adapter (8) can press the bearing (3) into the designated position of the bearing seat (7) under the driving of the oil press.
2. The press-fitting mechanism of the multi-size interchangeable joint bearing according to claim 1, wherein the bearing press-fitting adapter (2) is a two-step cylindrical body, and is provided with a through hole along an axis; the outer wall of the large-diameter end is provided with threads which are matched with the inner wall of the bearing press-fitting seat (1) in a threaded manner, and the small-diameter end is matched with the bearing (3); defining the thickness between the outer wall and the inner wall of the small-diameter end as T and the inner diameter of the through hole as D; the size of the hole D is consistent with that of the crimped bearing inner ring, and when the inner diameter size PhiD of the bearing is less than or equal to 3mm, the size of the size T is 2 +/-0.1 mm; at that time, the dimension T is 3.5 +/-0.1 mm; when in use
When the size T is 5 +/-0.1 mm; when in use
When the size T is 8 +/-0.1 mm; when in use
The dimension T is 10. + -. 0.1 mm.
3. The pressing mechanism of the multi-size interchangeable joint bearing according to claim 1, wherein the roughness of the end face of the pressing bearing of the bearing external pressing adapter (2) is Ra0.8 μm, the parallelism of the end face and the upper end face is not more than 0.02, and the perpendicularity of the outer circle of the pressing bearing and the upper end face is not more than 0.02.
4. The press-fitting mechanism of the multi-size interchangeable joint bearing according to claim 1, wherein the parallelism between the inner end face of the bearing press-fitting seat (1) and the stressed outer end face is not more than 0.03.
5. The press-fitting mechanism of the multi-size interchangeable joint bearing according to claim 1, characterized in that the bearing press-fitting adapter (8) is a cylindrical body as a whole, one end of the bearing press-fitting adapter is provided with a blind hole, the other end of the bearing press-fitting adapter is provided with a threaded hole along the axial line, and the axial lines of the two holes are coincident; the threaded hole end is fixedly connected with the bearing press-mounting plate (6), and the blind hole end is connected with the bearing (3); defining the thickness of the inner wall and the outer wall of the blind hole end as T, and the inner diameter of the blind hole as D; the size of the hole D is consistent with that of the crimped bearing inner ring, and when the inner diameter size PhiD of the bearing is less than or equal to 3mm, the size of the size T is 2 +/-0.1 mm; when in use
When the size T is 3.5 +/-0.1 mm; when in use
When the size T is 5 +/-0.1 mm; when in use
When the size T is 8 +/-0.1 mm; when in use
The dimension T is 10. + -. 0.1 mm.
6. The press-fitting mechanism of the multi-size interchangeable joint bearing according to claim 1, wherein the roughness of the end face of the press-fitting conversion joint (8) in the bearing where the press-fitting conversion joint is pressed is Ra0.8 μm, the parallelism between the end face and the upper end face is not more than 0.02, and the perpendicularity between the outer circle of the press-fitting conversion joint and the upper end face is not more than 0.02.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972439.2U CN216399489U (en) | 2021-08-21 | 2021-08-21 | Many sizes interchangeable connects bearing pressure equipment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972439.2U CN216399489U (en) | 2021-08-21 | 2021-08-21 | Many sizes interchangeable connects bearing pressure equipment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216399489U true CN216399489U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121972439.2U Active CN216399489U (en) | 2021-08-21 | 2021-08-21 | Many sizes interchangeable connects bearing pressure equipment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216399489U (en) |
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2021
- 2021-08-21 CN CN202121972439.2U patent/CN216399489U/en active Active
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