CN215214345U - Rod end joint bearing assembly structure - Google Patents
Rod end joint bearing assembly structure Download PDFInfo
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- CN215214345U CN215214345U CN202120076576.1U CN202120076576U CN215214345U CN 215214345 U CN215214345 U CN 215214345U CN 202120076576 U CN202120076576 U CN 202120076576U CN 215214345 U CN215214345 U CN 215214345U
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- ring body
- inner ring
- rod end
- outer ring
- clamping hole
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Abstract
The utility model discloses a rod end joint bearing assembly structure, include: a rod end body, an outer ring body is arranged on the rod end body; the inner ring body is assembled and arranged in the outer ring body; the middle part of the outer ring body is provided with a clamping hole, and the inner ring body is arranged in the clamping hole; one end of the clamping hole in the axial direction is provided with a press-fit locking notch, and the other end of the clamping hole is provided with an annular step. The annular steps and the press-fit type locking openings are respectively arranged on the two sides of the outer ring body, and after the inner ring body is arranged in the outer ring body, the press-fit type locking openings are locked by adopting a wrapping and pressing process, so that the inner ring body is effectively prevented from being separated from the outer ring body in the working process of the knuckle bearing, the assembly is convenient, and the locking is firm; under the effect of the wrapping and pressing process, after the deformation section is bent to form an arc-shaped structure, the deformation section and the joint section are matched to form a semi-surrounding structure, so that the inner ring body can stably work in the clamping hole.
Description
Technical Field
The utility model belongs to the technical field of joint bearing technique and specifically relates to a rod end joint bearing assembly structure is related to.
Background
The joint bearing is a spherical sliding bearing, the sliding contact surface of which is an inner spherical surface and an outer spherical surface, and can rotate and swing at any angle during movement.
The joint bearing mainly comprises an inner ring body with an outer spherical surface and an outer ring body with an inner spherical surface. The joint bearing is generally used for swinging motion (namely angular motion) with low speed, and can also perform tilting motion (namely aligning motion) within a certain angle range because the sliding surface is spherical, and can still normally work when the concentricity of the supporting shaft and the shaft shell hole is large. The manufacturing method of the rod end joint bearing comprises casting, rough turning, fine turning and the like, after the process of mounting the inner ring body on the outer ring body, the inner ring body needs to be limited, and the processing is particularly complicated.
For example, chinese patent with publication number "CN 204267518U" discloses a "rod end joint bearing", which includes an outer ring with a rod end body, an inner ring is disposed in the outer ring, gaps are respectively disposed on inner sides of two ends of the outer ring, lengths of the gaps correspond to outer diameters of the inner ring, widths of the gaps correspond to thicknesses of the inner ring, the inner ring is placed in the outer ring through the gaps, and the outer ring and the inner ring form a spherical contact with each other.
Although the rod end joint bearing structure ensures the assembly stability between the inner ring body and the outer ring body to a certain degree by utilizing the cambered surface structure of the inner edge of the outer ring body, in the actual use process, because the working condition of the rod end joint bearing is more complex, the structure lacks the rigid constraint on the inner ring body, the limiting effect on the inner ring body is not ideal, the abrasion resistance of the inner edge of the outer ring body is poor, the abrasion is serious after long-time use, and the rod end joint bearing structure cannot bear the operation of higher rotating speed.
Disclosure of Invention
To the complicated and unsatisfactory problem of locking effect of the spacing process of the prior art well-known inner race body installation that mentions among the background art, the utility model provides a rod end joint bearing assembly structure through set up annular step and pressfitting formula fore shaft respectively in outer race body both sides, installs the inner race body at the internal back of outer race, adopts the package to press technology with pressfitting formula fore shaft closure, effectively avoids the inner race body to deviate from the outer race body in joint bearing course of operation, and the assembly is convenient, and the locking is firm.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rod end knuckle bearing mounting structure comprising: a rod end body, an outer ring body is arranged on the rod end body; the inner ring body is assembled and arranged in the outer ring body; the middle part of the outer ring body is provided with a clamping hole, and the inner ring body is arranged in the clamping hole; one end of the clamping hole in the axial direction is provided with a press-fit locking notch, and the other end of the clamping hole is provided with an annular step. The inner ring body is installed into the clamping hole of the outer ring body from the pressing type locking port and abuts against the annular step at the other end of the clamping hole, the pressing type locking port is locked through a wrapping and pressing process, the process is simple, the sealing quality is good, in the working process of the rod end knuckle bearing, when the inner ring body is subjected to an outward tensile force and has a trend of outward action, the annular step is matched with the pressing type locking port to limit the inner ring body, the further generation of the releasing action of the inner ring body is avoided, and therefore the assembling stability of the rod end knuckle bearing is effectively improved.
Preferably, the outer edge of the press-fit type locking notch is provided with a yielding groove, and the yielding groove is of a ring groove structure.
Furthermore, the clamping hole comprises a deformation section close to the press-fit type locking opening and a joint section close to the annular step, an arc-shaped surface is arranged on the inner edge of the joint section, and a first containing surface capable of being bent and deformed is arranged on the inner edge of the deformation section.
After the inner ring body is arranged in the outer ring body, a wrapping and pressing process needs to be carried out, the arrangement of the abdicating groove can ensure that the outer ring body is prevented from being broken when the pressing and combining type locking notch is pressed, and the normal operation of the wrapping and pressing process is ensured. It is worth noting that when the pressing-closing type locking port is locked, the first containing face of the deformation section is pressed and deformed into an arc face symmetrical to the joint section under the effect of the pressing-closing process, and the joint section is matched to complete the wrapping of the inner ring body.
Preferably, the deformation section and the joint section are of an integrated structure, the deformation section and the joint section are arranged on the outer edge of the inner ring body in a semi-surrounding mode, and the deformation section and the joint section are recessed towards the middle part along two sides. Under the effect of the wrapping and pressing process, after the deformation section is bent to form an arc-shaped structure, the deformation section and the joint section are matched to form a semi-surrounding structure, so that the inner ring body can stably work in the clamping hole. In addition, after the inner ring body is pressurized for the second time, the outer edge of the inner ring body can be attached to a semi-surrounding structure formed by the joint section and the deformation section, and the compactness of the rod end knuckle bearing is improved.
Preferably, the inner edge of the annular step is provided with a first clamping surface, the first clamping surface is an arc-shaped surface, and the first clamping surface can be attached to the outer edge of the inner ring body.
Furthermore, a second clamping surface is arranged on the inner edge of the press-fit type locking opening, and the second clamping surface can be attached to the outer edge of the inner ring body.
The first clamping surface and the second clamping surface can completely ensure that the locking notch layer can carry out 'cage' type fixation on the inner ring body provided with the locking groove, and the shown inner ring body is limited between the pressing-fit type locking notch and the annular step at two sides of the outer ring body.
After the inner ring body is arranged in the outer ring body, the outer ring body and the inner ring body cannot be attached by 360 degrees due to the existence of bearing play, so that the stress is still unevenly distributed in the working process of the rod end knuckle bearing, uneven wear occurs in the bearing due to the incomplete attachment state, and the service life of the bearing is reduced. Therefore, the first clamping surface and the second clamping surface are respectively arranged on the two sides of the outer ring body, and after the inner ring body is assembled, the inner ring body is pressurized for the second time through the press, so that the whole inner ring body can be transversely compressed and expanded, the gap is eliminated at the position where the first assembling surface is not attached to the second assembling surface originally, and the tight fit is formed; but also the height of the side end face of the inner ring body is slightly lower than that of the side end face of the outer ring body, so that a reserved space is provided for the installation of the locking notch layer; thirdly, the inner ring body is coated in a laminating mode and limited through the first clamping face and the second clamping face. The utility model discloses in, the inner circle body pressurizes the inner circle body both sides respectively after the outer circle body of packing into to technical staff carries out the setting on fore shaft layer after pressurizeing at every turn. When the tight fit of the inner ring body and the outer ring body is ensured, the inner ring body is surrounded and limited by the first clamping surface and the second clamping surface, so that the rod end bearing assembly structure can be quickly assembled. The secondary pressurization effectively improves the assembly compactness between the inner ring body and the outer ring body.
Preferably, the inner edge of the clamping hole is provided with a wear-resistant layer. The wear-resistant layer is made of polytetrafluoroethylene, so that the wear resistance is excellent, the heat deformation temperature is dozens of degrees higher than that of common plastics, the cold brittleness temperature has almost no lower limit, the elongation at break is as high as 350%, the stress generated by the operation of the bearing can be greatly born, and the impact load and the pressure fluctuation are absorbed.
The utility model has the advantages that: (1) the annular steps and the press-fit type locking openings are respectively arranged on the two sides of the outer ring body, and after the inner ring body is arranged in the outer ring body, the press-fit type locking openings are locked by adopting a wrapping and pressing process, so that the inner ring body is effectively prevented from being separated from the outer ring body in the working process of the knuckle bearing, the assembly is convenient, and the locking is firm; (2) the inner ring body is pressurized for the second time through the press, so that the whole inner ring body can be transversely compressed and expanded, the gap is eliminated at the position where the first assembling surface is not attached to the second assembling surface originally, and the tight fit is formed; but also the height of the side end face of the inner ring body is slightly lower than that of the side end face of the outer ring body, so that a reserved space is provided for the installation of the locking notch layer; then, the inner ring body is subjected to attaching type cage-type limiting through the first clamping surface and the second clamping surface; (3) the arrangement of the abdicating groove can ensure that the outer ring body is prevented from being broken when the pressing type locking notch is pressed, and the normal operation of the wrapping and pressing process is ensured; (4) under the effect of the wrapping and pressing process, after the deformation section is bent to form an arc-shaped structure, the deformation section and the joint section are matched to form a semi-surrounding structure, so that the inner ring body can stably work in the clamping hole. In addition, after the inner ring body is pressurized for the second time, the outer edge of the inner ring body can be attached to a semi-surrounding structure formed by the joint section and the deformation section, and the compactness of the rod end knuckle bearing is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the outer ring body of FIG. 1;
FIG. 3 is a side cross-sectional view of the collar body of FIG. 1;
fig. 4 is a side cross-sectional view of the present invention.
In the figure: 1. the rod end body, 2, the outer ring body, 21, the clamping hole, 22, the annular step, 23, the deformation section, 24, the joint section, 241, the first containing surface, 3, the inner ring body, 31, the first clamping surface, 32, the second clamping surface, 4, the press-fit type locking notch, 41, the abdicating groove, 5 and the wear-resistant layer.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 and 4, a rod end joint bearing assembly structure includes: the rod end body 1 is provided with an outer ring body 2; the inner ring body 3 is assembled and arranged in the outer ring body 2; the middle part of the outer ring body 2 is provided with a clamping hole 21, and the inner ring body 3 is arranged in the clamping hole 21; one end of the clamping hole 21 in the axial direction is provided with a press-fit type locking notch 4, and the other end is provided with an annular step 22. The inner ring body 3 is installed into the clamping hole 21 of the outer ring body 2 from the pressing type locking port 4, the annular step 22 is abutted to the other end of the clamping hole 21, the pressing type locking port 4 is locked through a wrapping and pressing process, the process is simple, the sealing quality is good, and when the inner ring body 3 is subjected to an outward tensile force and has a trend of outward movement in the working process of the rod end knuckle bearing, the annular step 22 is matched with the pressing type locking port 4 to limit the inner ring body 3, the further generation of the releasing movement of the inner ring body is avoided, and therefore the assembling stability of the rod end knuckle bearing is effectively improved.
The outer edge of the press-fit type locking notch 4 is provided with a yielding groove 41, and the yielding groove 41 is of a ring groove structure. Further, the clamping hole 21 includes a deformation section 23 close to the press-fit type locking notch 4 and a joint section 24 close to the annular step 22, an inner edge of the joint section 24 is provided with an arc-shaped surface, and an inner edge of the deformation section 23 is provided with a first containing surface 241 capable of being bent and deformed. After the inner ring body 3 is installed in the outer ring body 2, the wrapping and pressing process needs to be carried out, the arrangement of the abdicating groove 41 can ensure that the outer ring body 2 is prevented from being broken when the pressing and combining type locking notch 4 is pressed, and the normal operation of the wrapping and pressing process is ensured. It is worth noting that while the press-fit type locking notch 4 completes locking, the first containing surface 241 of the deformation section 23 is pressed and deformed into an arc-shaped surface symmetrical to the joint section 24 under the action of the wrapping and pressing process, and the joint section 24 is matched to complete wrapping of the inner ring body 3.
As shown in fig. 2 and 3, the deformation section 23 and the engagement section 24 are of an integral structure, the deformation section 23 and the engagement section 24 are arranged on the outer edge of the inner ring body 3 in a semi-surrounding manner, and the deformation section 23 and the engagement section 24 are recessed towards the middle along two sides. Under the action of the wrapping and pressing process, after the deformation section 23 is bent to form an arc-shaped structure, the deformation section and the joint section 24 are matched to form a semi-enclosed structure, so that the inner ring body 3 can stably work in the clamping hole 21. In addition, after the inner ring body 3 is pressurized for the second time, the outer edge of the inner ring body 3 can be attached to the semi-enclosed structure composed of the joint section 24 and the deformation section 23, and the compactness of the rod end joint bearing is improved.
The inner edge of the annular step 22 is provided with a first clamping surface 31, the first clamping surface 31 is an arc-shaped surface, and the first clamping surface 31 can be attached to the outer edge of the inner ring body 3. Further, a second engaging surface 32 is disposed on an inner edge of the press-fit type locking notch 4, and the second engaging surface 32 can be attached to an outer edge of the inner ring body 3. The first clamping surface 31 and the second clamping surface 32 can completely ensure that the locking notch layer can perform 'cage' type fixation on the inner ring body 3 provided with the locking groove, and the shown inner ring body 3 is limited between the press-fit type locking notch 4 and the annular step 22 at two sides of the outer ring body 2.
And the inner edge of the clamping hole 21 is provided with a wear-resistant layer 5. The wear-resistant layer 5 is made of polytetrafluoroethylene, so that the wear resistance is excellent, the heat deformation temperature is dozens of degrees higher than that of common plastics, the cold brittleness temperature has almost no lower limit, the elongation at break is as high as 350%, the stress generated by the operation of the bearing can be greatly born, and the impact load and the pressure fluctuation are absorbed.
In this embodiment, after the inner ring body 3 is installed in the outer ring body 2, because of the existence of the bearing play, 360 degrees of fitting cannot be realized between the outer ring body 2 and the inner ring body 3, so that in the working process of the rod end joint bearing, uneven distribution of stress still exists, and uneven wear occurs inside the bearing due to the incomplete fitting state, thereby causing the influence of reducing the service life of the bearing. Therefore, the first clamping surface 31 and the second clamping surface 32 are respectively arranged on the two sides of the outer ring body 2, and after the inner ring body 3 is assembled, the inner ring body 3 is pressurized for the second time through the press, so that the whole inner ring body 3 can be transversely compressed and expanded, the gap is eliminated at the position where the first assembling surface is not attached to the second assembling surface originally, and the tight fit is formed; but also the height of the end surface of the inner ring body 3 is slightly lower than that of the end surface of the outer ring body 2, so that a reserved space is provided for the installation of the locking notch layer; thirdly, the inner ring body 3 is wrapped and limited in a fitting manner by the first engaging surface 31 and the second engaging surface 32.
In this embodiment, after the inner ring body 3 is installed into the outer ring body 2 from the press-fit type locking notch 4, the press-fit type locking notch 4 is pressed by using a wrapping process to complete locking, and then both sides of the inner ring body 3 are respectively pressed. When the inner ring body 3 and the outer ring body 2 are ensured to complete tight fit, the inner ring body 3 is surrounded and limited by the first clamping surface 31 and the second clamping surface 32, so that the rod end bearing assembling structure can be quickly assembled. The secondary pressurization effectively improves the assembly compactness between the inner ring body 3 and the outer ring body 2.
In addition to the above embodiments, the technical features of the present invention can be re-selected and combined within the scope of the present invention as disclosed in the claims and the specification to constitute new embodiments, which can be realized by those skilled in the art without any creative work, therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.
Claims (7)
1. A rod end joint bearing assembly structure, characterized by comprising:
a rod end body, an outer ring body is arranged on the rod end body;
the inner ring body is assembled and arranged in the outer ring body;
the middle part of the outer ring body is provided with a clamping hole, and the inner ring body is arranged in the clamping hole;
one end of the clamping hole in the axial direction is provided with a press-fit locking notch, and the other end of the clamping hole is provided with an annular step.
2. The assembly structure of claim 1, wherein the outer edge of the press-fit type locking notch is provided with a relief groove, and the relief groove is of a ring groove structure.
3. The assembly structure of a rod end joint bearing according to claim 1, wherein the engaging hole comprises a deformation section near the press-fit type locking notch and a joint section near the annular step, an inner edge of the joint section is an arc-shaped surface, and a first wrapping surface capable of bending and deforming is arranged on an inner edge of the deformation section.
4. The assembly structure of claim 3, wherein the deformation section and the engagement section are integrally formed, the deformation section and the engagement section are disposed on the outer edge of the inner ring body in a semi-surrounding manner, and the deformation section and the engagement section are recessed toward the middle along two sides.
5. The assembly structure of a rod end joint bearing according to claim 1, wherein the inner edge of the annular step is provided with a first engaging surface, the first engaging surface is an arc-shaped surface, and the first engaging surface can be attached to the outer edge of the inner ring body.
6. The assembly structure of claim 1, wherein the inner edge of the press-fit type locking notch is provided with a second engaging surface, and the second engaging surface can be attached to the outer edge of the inner ring body.
7. A rod end knuckle bearing assembly structure according to any one of claims 1-6, wherein a wear layer is disposed on an inner edge of the snap-fit hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120076576.1U CN215214345U (en) | 2021-01-12 | 2021-01-12 | Rod end joint bearing assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120076576.1U CN215214345U (en) | 2021-01-12 | 2021-01-12 | Rod end joint bearing assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215214345U true CN215214345U (en) | 2021-12-17 |
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ID=79437347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120076576.1U Active CN215214345U (en) | 2021-01-12 | 2021-01-12 | Rod end joint bearing assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215214345U (en) |
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2021
- 2021-01-12 CN CN202120076576.1U patent/CN215214345U/en active Active
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