CN209936825U - Hub bearing outer ring press-fitting device - Google Patents
Hub bearing outer ring press-fitting device Download PDFInfo
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- CN209936825U CN209936825U CN201920503928.XU CN201920503928U CN209936825U CN 209936825 U CN209936825 U CN 209936825U CN 201920503928 U CN201920503928 U CN 201920503928U CN 209936825 U CN209936825 U CN 209936825U
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- outer ring
- bearing outer
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Abstract
The utility model discloses a hub bearing outer ring press mounting device, which belongs to the technical field of automobile accessory processing equipment and comprises a frame, an upper press shaft mechanism and a lower press shaft mechanism; the method is characterized in that: an upper hydraulic oil cylinder and a lower hydraulic oil cylinder are erected in the middle of the rack; support guide posts are arranged on two sides of the reset spring, sliding supports are sleeved on the outer sides of the support guide posts, and external threads matched with the internal threads of the bolt holes are arranged on the outer sides of the sliding supports; the axis of the sliding support is provided with a through hole which is in sliding connection with the support guide post; the utility model has the advantages that: the limiting clamping groove solves the problem of fixing the bearing outer ring and the hub bearing hole; the combination of the bolt holes on the two sides of the hub and the sliding support is utilized, so that the hub is guided and positioned, and the problem that the upper pressure head and the lower pressure head deviate from the bearing hole of the hub due to the difference of the physical deformation of the spring in the supporting process of the hub and the spring seat is solved; the hydraulic cylinders which are symmetrical up and down are adopted, so that the stress is more balanced.
Description
The technical field is as follows:
the utility model belongs to the technical field of auto-parts processing equipment, more specifically relate to a hub bearing outer lane pressure equipment device.
Background art:
the hub press-mounting bearings are all pressed in place by the aid of the bottom surface bearings, the middle spacer sleeve and the upper surface bearings are placed, the upper surface bearings are pressed, each hub can complete a shaft pressing process only by press-mounting the bearings twice, the bearings are firstly sleeved on the lower pressing heads when the bottom surface bearings are pressed, the upper surfaces of the bearings are the highest planes of the lower pressing head working tables of the shaft pressing machine, and operators can take the hubs with two hands to place the bearing holes in alignment with the bearings.
However, the outer diameter of the bearing is in interference fit with the hub bearing hole, the hub is only in linear contact with the upper outer circle of the outer diameter of the bearing, the hub can fall down only by being held by hands, when the hub is not dragged to be flat, the bearing is easy to incline to a certain degree during press mounting, when the bearing is pressed, the bearing is placed on the upper surface of the hub bearing hole, the lower outer circle of the outer diameter of the bearing is in linear contact with the hub bearing hole, the bearing is also inclined to the upper surface, a certain degree of inclination can be generated during press mounting, and in addition, the middle spacer sleeve is also inclined to fall into the hub bearing hole, so that the phenomenon that the bearing is clamped and cannot rotate easily after tight press mounting is generated.
The patent number 201520251045.6 of the national utility model discloses a hub bearing press-fitting device, which well solves the above problems, and although the problem of fixing a bearing and a hub bearing hole is solved, the difference of the shape of the hub is large, the internal structure is different, the force points are also different, and meanwhile, the difference exists between the upper press head and the lower press head and the hub bearing hole due to the physical deformation of the spring, and the deviation exists between the upper press head and the hub bearing hole in the supporting process of the spring seat, so that the phenomenon that the bearing is locked and rotates easily after the press-fitting is tight can still be caused; particularly, a hydraulic oil cylinder arranged in the device adopts press mounting from top to bottom, the press mounting of the upper end is necessarily realized after the lower end is subjected to force interference after the press mounting is finished, the stress is unbalanced, the outer rings of the upper bearing and the lower bearing are subjected to uneven stress, and the deformation is easy to generate.
The utility model has the following contents:
in order to solve the problems and overcome the defects of the prior art, the utility model provides a press mounting device for an outer ring of a hub bearing;
the first technical problem to be solved is that: the problem of fixing the bearing and the hub bearing hole is solved;
the second technical problem to be solved is that: because the shape difference of the wheel hub is large, the internal structure is different, the acting points are different, and in the supporting process of the spring seat, the difference exists between the physical deformation of the spring, so that the deviation exists between the upper pressure head and the lower pressure head and the wheel hub bearing hole;
the third technical problem to be solved is: the upper end is pressed and assembled after the lower end is pressed and assembled in an interference mode, and stress is unbalanced, so that the upper bearing outer ring and the lower bearing outer ring are stressed unevenly and are easy to deform.
The utility model provides a concrete technical scheme of above-mentioned technical problem does: the hub bearing outer ring press-fitting device comprises a rack, an upper press shaft mechanism and a lower press shaft mechanism; the method is characterized in that: an upper hydraulic oil cylinder and a lower hydraulic oil cylinder are erected in the middle of the rack; the upper pressure shaft mechanism comprises an upper pressure head arranged at the ejection end of the upper hydraulic cylinder, the lower pressure shaft mechanism comprises a bottom plate at the bottom of the rack and a lower pressure head arranged at the ejection end of the lower hydraulic cylinder, and the lower pressure head and the upper pressure head are arranged on the same vertical line;
the lower pressing head penetrates through the bottom plate, the bottom plates on two sides of the lower pressing head are symmetrically provided with reset structures, each reset structure comprises a guide pillar arranged in the vertical direction, a spring sleeve penetrates through the outer side of each guide pillar, and a reset spring is sleeved in each spring sleeve; the inner side of the spring sleeve is connected to a supporting plate which is connected with the lower pressure head in a penetrating way;
the upper end face of the spring sleeve is provided with a hub in a supporting manner, and the axis of the hub is provided with a through hole for mounting a bearing; bolt holes for fastening are arranged on two sides of the hub;
the upper end faces of the bottom plates on two sides of the reset spring are also provided with support guide posts, sliding supports are sleeved on the outer sides of the support guide posts and are arranged in a cylindrical boss shape, and external threads matched with the internal threads of the bolt holes are arranged on the outer sides of the sliding supports; the axis of the sliding support is provided with a through hole which is connected with the supporting guide post in a sliding way.
Furthermore, the upper pressure head and the lower pressure head are both sleeved with bearing outer rings matched with the through holes in the axle center of the hub.
Furthermore, the lower end surface of the spring sleeve is provided with an annular blind hole in which a return spring is sleeved, and the axis of the spring sleeve is provided with a through hole in which a guide pillar penetrates; and a return spring is arranged in the annular blind hole.
Furthermore, the other end of the return spring is embedded in the bottom plate.
Furthermore, the inner side of the supporting plate is provided with a limiting clamping groove matched with the lower end face of the hub.
Further, the natural length of the return spring is larger than the length of the guide post.
The utility model has the advantages that:
the limiting clamping groove matched with the lower end face of the hub is arranged in the device, so that the problem of fixing the bearing outer ring and the hub bearing hole is solved;
the device creatively utilizes the combination of the bolt holes at the two sides of the hub and the sliding support, realizes the guiding and the positioning of the hub, and avoids the problem that the deviation exists between the upper pressure head and the lower pressure head and the bearing hole of the hub due to the difference of the physical deformation of the spring in the supporting process of the hub and the spring seat;
the device adopts the hydraulic oil cylinders which are symmetrical up and down, so that the stress is more balanced.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure of the reduction structure of the present invention; the reset structure is as follows:
1. an upper pressure head; 2. a bearing outer race; 3. a hub; 4. a spring housing; 5. an annular blind hole; 6. a support plate; 7, a return spring; 8. a base plate; 9. a guide post; 10. a lower pressure head; 11. supporting the guide post; 12. a sliding support; 13. bolt holes; 14. a limiting clamping groove; 15. an annular groove.
The specific implementation mode is as follows:
to further clarify the objects, aspects and advantages of the present invention, a more complete description of the invention will now be rendered by reference to figures 1-3. In describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are 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 therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model discloses a concrete implementation mode: the hub bearing outer ring press-fitting device comprises a rack, an upper press shaft mechanism and a lower press shaft mechanism; the method is characterized in that: an upper hydraulic oil cylinder and a lower hydraulic oil cylinder are erected in the middle of the rack; the upper pressure shaft mechanism comprises an upper pressure head 1 arranged at the ejection end of the upper hydraulic cylinder, the lower pressure shaft mechanism comprises a bottom plate 8 at the bottom of the rack and a lower pressure head 10 arranged at the ejection end of the lower hydraulic cylinder, and the lower pressure head 10 and the upper pressure head 1 are arranged on the same vertical line;
the lower pressing head 10 penetrates through the bottom plate 8, the bottom plates 8 on two sides of the lower pressing head 10 are symmetrically provided with reset structures, each reset structure comprises a guide pillar 9 arranged in the vertical direction, a spring sleeve 4 penetrates through the outer side of each guide pillar 9, and a reset spring 7 is sleeved in each spring sleeve 4; the inner side of the spring sleeve 4 is connected to a supporting plate 6 which is connected with a lower pressure head 10 in a penetrating way;
the upper end face of the spring sleeve 4 is provided with a hub 3 in a supporting way, and the axis of the hub 3 is provided with a through hole for mounting a bearing; bolt holes 13 for fastening are arranged on two sides of the hub 3;
the upper end faces of the bottom plates 8 on the two sides of the reset spring 7 are also provided with support guide columns 11, sliding supports 12 are sleeved on the outer sides of the support guide columns 11, the sliding supports 12 are arranged in a cylindrical boss shape, and external threads matched with the internal threads of the bolt holes 13 are arranged on the outer sides of the sliding supports 12; the axis of the sliding support 12 is provided with a through hole which is connected with the supporting guide post 11 in a sliding way.
Further, the upper pressure head 1 and the lower pressure head 10 are both sleeved with bearing outer rings 2 matched with through holes of the axle center of the hub 3.
Furthermore, the lower end surface of the spring sleeve 4 is provided with an annular blind hole 5 which is sleeved with a return spring 7, and the axis of the spring sleeve 4 is provided with a through hole which is penetrated by a guide pillar 9; a return spring 7 is arranged in the annular blind hole 5.
Further, the other end of the return spring 7 is embedded in the bottom plate 8.
Furthermore, the inner side of the supporting plate 6 is provided with a limiting clamping groove 14 matched with the lower end face of the hub 3.
Further, the natural length of the return spring 7 is greater than the length of the guide post 9.
It should be noted that the utility model relates to a press mounting device for the outer ring of a hub bearing, when in specific work,
1. firstly, a bearing outer ring 2 at the lower end is sleeved on a lower pressure head 10, a sliding support 12 is installed in bolt holes 13 at two sides of a hub 3 in a threaded connection mode, external threads of the sliding support 12 are matched with internal threads of the bolt holes 13, a through hole in the axis of the sliding support 12 is connected with a supporting guide post 11 in a penetrating mode, the sliding support 12 slides along the supporting guide post 11, the lower end face of the hub 3 is attached to the upper end face of a spring sleeve 4, the effects of guiding and positioning the hub 3 are achieved at the moment, the situation that due to large differences of hub shapes, inner structures are different, acting points are different, due to differences of physical deformation of springs, deviation exists between the upper pressure head and the lower pressure head and a hub bearing hole, and finally the upper port and the lower port of the hub 3 cannot be matched with the upper pressure head 1 and the lower pressure head 10 at the same time;
2. the inner side of the supporting plate 6 is provided with a limiting clamping groove 14 matched with the lower end face of the hub 3, so that the limiting of the hub 3 and the supporting plate 6 is realized, and the embedding of the bearing outer ring 2 is facilitated; sleeving the upper end bearing outer ring 2 on the upper pressure head 10, and arranging a bearing locking device on the upper pressure head 22 to fix the upper end bearing outer ring 2;
3. an upper hydraulic oil cylinder and a lower hydraulic oil cylinder in the middle of the frame are started, the upper pressure head 1 and the lower pressure head 10 are pushed to move inwards, the bearing outer ring 2 is pressed into the hub 3 through pressure, and the sliding support 12 plays a role in guiding and positioning;
4. after the pressing is finished, an upper hydraulic oil cylinder and a lower hydraulic oil cylinder in the middle of the rack are opened, the upper pressing head 1 and the lower pressing head 10 are pushed to move outwards, the wheel hub 3 moves upwards under the action of the return spring 7, and the lower pressing head 10 is separated from the supporting plate 6.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A hub bearing outer ring press-fitting device comprises a rack, an upper press shaft mechanism and a lower press shaft mechanism; the method is characterized in that: an upper hydraulic oil cylinder and a lower hydraulic oil cylinder are erected in the middle of the rack; the upper pressure shaft mechanism comprises an upper pressure head (1) arranged at the ejection end of the upper hydraulic cylinder, the lower pressure shaft mechanism comprises a bottom plate (8) at the bottom of the rack and a lower pressure head (10) arranged at the ejection end of the lower hydraulic cylinder, and the lower pressure head (10) and the upper pressure head (1) are arranged on the same vertical line;
the lower pressure head (10) penetrates through the bottom plate (8), the bottom plates (8) on two sides of the lower pressure head (10) are symmetrically provided with reset structures, each reset structure comprises a guide pillar (9) arranged in the vertical direction, a spring sleeve (4) penetrates through the outer side of each guide pillar (9), and a reset spring (7) is sleeved in each spring sleeve (4); the inner side of the spring sleeve (4) is connected to a supporting plate (6) which is connected with a lower pressure head (10) in a penetrating way;
the upper end face of the spring sleeve (4) is provided with a hub (3), and the axis of the hub (3) is provided with a through hole for mounting a bearing; both sides of the hub (3) are provided with bolt holes (13) for fastening;
the upper end faces of the bottom plates (8) on the two sides of the reset spring (7) are also provided with supporting guide columns (11), sliding supports (12) are sleeved on the outer sides of the supporting guide columns (11), the sliding supports (12) are arranged in a cylindrical boss shape, and external threads matched with the internal threads of the bolt holes (13) are arranged on the outer sides of the sliding supports (12); the axis of the sliding support (12) is provided with a through hole which is connected with the supporting guide post (11) in a sliding way.
2. The hub bearing outer ring press fitting device according to claim 1, wherein the upper press head (1) and the lower press head (10) are both provided with bearing outer rings (2) which are matched with through holes of the axle center of the hub (3).
3. The hub bearing outer ring press fitting device according to claim 1, wherein the lower end surface of the spring sleeve (4) is provided with an annular blind hole (5) sleeved with a return spring (7), and the axis of the spring sleeve (4) is provided with a through hole penetrating through a guide post (9); a return spring (7) is arranged in the annular blind hole (5).
4. The hub bearing outer ring press fitting device according to claim 3, wherein the other end of the return spring (7) is embedded in the bottom plate (8).
5. The hub bearing outer ring press fitting device according to claim 1, wherein a limiting clamping groove (14) matched with the lower end face of the hub (3) is formed in the inner side of the supporting plate (6).
6. The hub bearing outer ring press-fitting device according to claim 1, wherein the natural length of the return spring (7) is greater than the length of the guide post (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503928.XU CN209936825U (en) | 2019-04-15 | 2019-04-15 | Hub bearing outer ring press-fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503928.XU CN209936825U (en) | 2019-04-15 | 2019-04-15 | Hub bearing outer ring press-fitting device |
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| Publication Number | Publication Date |
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| CN209936825U true CN209936825U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920503928.XU Active CN209936825U (en) | 2019-04-15 | 2019-04-15 | Hub bearing outer ring press-fitting device |
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| CN (1) | CN209936825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858114A (en) * | 2021-11-04 | 2021-12-31 | 吉林大学 | Pinch roller assembly combined die and using method thereof |
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2019
- 2019-04-15 CN CN201920503928.XU patent/CN209936825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858114A (en) * | 2021-11-04 | 2021-12-31 | 吉林大学 | Pinch roller assembly combined die and using method thereof |
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