阅读说明：本技术 一种铝质关节球销总成及其生产工艺 (Aluminum joint ball pin assembly and production process thereof ) 是由 于海琳 丁国会 李兆强 吴少华 于 2021-03-16 设计创作，主要内容包括：本申请涉及一种铝质关节球销总成及其生产工艺,其铝质关节球销总成包括销体,销体中部套设有轴承壳,轴承壳外套设有弹性套；轴承壳包括壳体,壳体的两端部均设有一圈挡边,两圈挡边之间设置有安装面,安装面的外径小于挡边的外径；挡边上开设有进入槽,进入槽的槽底低于安装面的外壁,安装面的外壁开设有安装槽,安装槽的槽底与进入槽的槽底平齐,安装槽的两端相背离延伸至安装面的两端,且安装槽的端部与进入槽对齐；弹性套的内壁固定连接有安装块,安装块在沿弹性套径向的厚度与安装槽的深度适配,且安装块的宽度与安装槽的宽度均适配；安装块的两端相背离延伸至弹性套的两端。本申请具有节约成本,延长使用寿命的效果。(The application relates to an aluminum joint ball pin assembly and a production process thereof, wherein the aluminum joint ball pin assembly comprises a pin body, a bearing shell is sleeved in the middle of the pin body, and an elastic sleeve is sleeved outside the bearing shell; the bearing shell comprises a shell body, two ends of the shell body are respectively provided with a circle of flanges, an installation surface is arranged between the two circles of flanges, and the outer diameter of the installation surface is smaller than that of the flanges; the flange is provided with an inlet groove, the bottom of the inlet groove is lower than the outer wall of the mounting surface, the outer wall of the mounting surface is provided with a mounting groove, the bottom of the mounting groove is flush with the bottom of the inlet groove, two ends of the mounting groove oppositely extend to two ends of the mounting surface, and the end part of the mounting groove is aligned with the inlet groove; the inner wall of the elastic sleeve is fixedly connected with an installation block, the thickness of the installation block along the radial direction of the elastic sleeve is matched with the depth of the installation groove, and the width of the installation block is matched with the width of the installation groove; the two ends of the mounting block extend to the two ends of the elastic sleeve in a back-to-back manner. This application has the cost-effective, increase of service life's effect.)

1. The utility model provides an aluminium matter joint ball round pin assembly, includes round pin body (1), round pin body (1) middle part cover is equipped with bearing housing (2), bearing housing (2) overcoat is equipped with elastic sleeve (3), its characterized in that:

the bearing shell (2) comprises a shell (24), two ends of the shell (24) are respectively provided with a circle of flanges (22), an installation surface (23) is arranged between the two circles of flanges (22), and the outer diameter of the installation surface (23) is smaller than that of the flanges (22); an inlet groove (221) is formed in the retaining edge (22), the bottom of the inlet groove (221) is lower than the outer wall of the mounting surface (23), a mounting groove (231) is formed in the outer wall of the mounting surface (23), the bottom of the mounting groove (231) is flush with the bottom of the inlet groove (221), two ends of the mounting groove (231) extend to two ends of the mounting surface (23) in a back-to-back mode, and the end of the mounting groove (231) is aligned with the inlet groove (221);

the inner wall of the elastic sleeve (3) is fixedly connected with an installation block (32), the thickness of the installation block (32) along the radial direction of the elastic sleeve (3) is matched with the depth of the installation groove (231), and the width of the installation block (32) is matched with the width of the installation groove (231); the two ends of the mounting block (32) extend to the two ends of the elastic sleeve (3) in a back-to-back manner;

and the bearing shell (2) is also provided with a closing component (5) for plugging the inlet groove (221).

2. The aluminum knuckle ball pin assembly of claim 1, wherein: the mounting groove (231) is formed in the axial direction of the shell (24) and extends on the mounting surface (23) in a threaded shape, the mounting block (32) is also formed in the inner wall of the elastic sleeve (3) in the axial direction of the elastic sleeve (3) in a threaded shape and extends, and the thread pitch of the mounting block (32) is matched with the thread pitch of the mounting groove (231).

3. The aluminum knuckle ball pin assembly of claim 2, wherein: the entering groove (221) is obliquely arranged along the axial direction of the shell (24), and the oblique direction of the entering groove (221) is the spiral direction of the mounting groove (231).

4. The aluminum knuckle ball pin assembly of claim 1, wherein: the end part of the elastic sleeve (3) is provided with an expansion inclined plane (31), and the inner diameter of the expansion inclined plane (31) is gradually increased along the axial direction of the elastic sleeve (3) and in the direction deviating from the elastic sleeve (3).

5. The aluminum knuckle ball pin assembly of claim 1, wherein: the closing assembly (5) comprises a closing piece (51) arranged in the rib (22), the closing piece (51) is connected in the rib (22) in a sliding mode along the circumferential direction of the rib (22), and one end of the closing piece (51) extends into the entering groove (221).

6. A production process of an aluminum joint ball pin assembly is characterized by comprising the following steps: an aluminum knuckle pin assembly applied to the aluminum knuckle pin assembly as claimed in claims 1-5, comprising the following steps:

s1, installing the pin body (1) into the bearing shell (2);

s2, aligning the mounting block (32) with the entering groove (221) and penetrating the rib (22) through the entering groove (221);

s3, the mounting block (32) enters the mounting groove (231) and moves along the mounting groove (231), and the mounting of the elastic sleeve (3) on the mounting surface (23) is completed.

7. The production process of the aluminum joint ball pin assembly according to claim 6, characterized in that: the pin body (1) and the bearing shell (2) are made of aluminum.

8. The production process of the aluminum joint ball pin assembly according to claim 6, characterized in that: the elastic sleeve (3) is made of polyurethane.

Technical Field

The application relates to the technical field of automobile parts, in particular to an aluminum joint ball pin assembly and a production process thereof.

Background

The thrust rod assembly of the balanced rear suspension of the front heavy truck is an important part of a suspension system, wherein the joint ball pin assembly is particularly important, the service life of the joint ball pin assembly directly influences the service life of the whole truck, and if the joint ball pin assembly fails, the service life of an axle and a transmission system can be influenced even if the joint ball pin assembly is replaced in time.

The chinese utility model patent that the associated technology can refer to the grant publication number is CN211525323U discloses an overall structure joint bearing ball round pin assembly, including the joint ball round pin, the through-hole has been seted up at the both ends of joint ball round pin, joint ball round pin overcoat is equipped with the bearing housing, the outer anchor ring cover of bearing housing is equipped with the elastomer, the outer anchor ring interference of elastomer is connected with the cylinder metal covering.

In view of the above-mentioned related technologies, the inventor believes that when a general joint ball pin assembly is used, the elastic body is directly injection-molded on the bearing housing shell to realize the fixed connection between the elastic body and the bearing housing shell. However, in the using process, the elastic body is usually scratched and worn, so that the use of the whole joint ball pin assembly is affected, the elastic body is difficult to peel off from the bearing shell, and the elastic body cannot be replaced independently, so that once the elastic body is damaged, the joint ball pin and the bearing shell which are not damaged need to be replaced together, and the defects that the cost of the joint ball pin and the cost of the bearing shell are wasted, and the service life of the joint ball pin assembly is shortened exist.

Disclosure of Invention

In order to save cost and prolong the service life of the joint ball pin, the application provides an aluminum joint ball pin assembly and a production process thereof.

In a first aspect, the present application provides an aluminum joint ball pin assembly, which adopts the following technical scheme:

an aluminum joint ball pin assembly comprises a pin body, wherein a bearing shell is sleeved in the middle of the pin body, and an elastic sleeve is sleeved outside the bearing shell;

the bearing shell comprises a shell body, two ends of the shell body are respectively provided with a circle of flanges, an installation surface is arranged between the two circles of flanges, and the outer diameter of the installation surface is smaller than that of the flanges; the mounting structure comprises a flange, a mounting surface, a mounting groove and a mounting groove, wherein the flange is provided with the entering groove, the bottom of the entering groove is lower than the outer wall of the mounting surface, the outer wall of the mounting surface is provided with the mounting groove, the bottom of the mounting groove is flush with the bottom of the entering groove, two ends of the mounting groove oppositely extend to two ends of the mounting surface, and the end part of the mounting groove;

the inner wall of the elastic sleeve is fixedly connected with an installation block, the thickness of the installation block along the radial direction of the elastic sleeve is matched with the depth of the installation groove, and the width of the installation block is matched with the width of the installation groove; the two ends of the mounting block extend to the two ends of the elastic sleeve in a back-to-back manner;

and the bearing shell is also provided with a closing assembly for plugging the inlet groove.

Through adopting above-mentioned technical scheme, the elastic sleeve is installed on the installation face of bearing housing usually, and the external diameter of casing both sides flange all is greater than the external diameter of elastic sleeve to the reinforcing to the elastic sleeve is realized, and the change degree of difficulty of elastic sleeve has been increased.

At the moment, the elastic sleeve penetrates through the flange and moves along the axial direction of the shell under the condition that the mounting block of the inner wall of the elastic sleeve is aligned with the inlet groove by utilizing the inlet groove on the flange; furthermore, when the elastic sleeve passes through the flange, the mounting block on the inner wall of the elastic sleeve can enter the mounting groove under the action of the forward extension of the entering groove, and the elastic sleeve can stably move to the mounting surface by utilizing the matching action of the mounting block and the mounting groove, and the stability of the elastic sleeve is realized under the action of the closing assembly; in the same way, when the elastic sleeve needs to be taken down from the bearing shell, the elastic sleeve is moved to the direction opposite to the mounting direction.

Therefore, the elastic sleeve is detachably matched with the bearing shell, the elastic sleeve is independently replaced, unnecessary replacement of the pin body and the bearing shell is reduced, and the production cost is reduced; the process flow of producing the single elastic sleeve by independent injection molding is simpler than the process flow of directly injecting the elastic sleeve onto the bearing shell, so that the production process is simplified, the elastic sleeve can be produced in batch in advance for real-time replacement and standby, and the use convenience is improved; in addition, when the elastic sleeve is damaged and the single body is replaced, the service life of the joint ball pin can be prolonged.

Optionally, the mounting groove is formed in the mounting surface in a threaded shape and extends in the axial direction of the housing, the mounting block is also formed in the inner wall of the elastic sleeve in a threaded shape and extends in the axial direction of the elastic sleeve, and the thread pitch of the mounting block is matched with that of the mounting groove.

Through adopting above-mentioned technical scheme, when the installation piece gets into in the mounting groove and when removing along the direction of mounting groove, the mounting groove that the screw thread set up and the installation piece adaptation of same constant pitch screw thread setting can make elastic sleeve rotary motion to reduce elastic sleeve rectilinear movement and the resistance that produces, make elastic sleeve more laborsaving under screw-thread fit's effect install to the installation face on or shift out from the installation face, reach the effect that the elastic sleeve is convenient, laborsaving to change. In addition, the elastic sleeve moves to the mounting surface in a rotating mode, so that the elastic sleeve generates smaller deformation in the axial direction, the elastic sleeve can be attached to the mounting surface more closely after moving to the mounting surface, and the use stability of the elastic sleeve is guaranteed.

Optionally, the entry groove is arranged in an inclined manner along the axial direction of the housing, and the inclined direction of the entry groove is the spiral direction of the mounting groove.

Through adopting above-mentioned technical scheme, the entering groove sets up to the slope equally to realize entering groove and mounting groove and reach the same direction as prolonging, thereby further make things convenient for the installation piece of elastic sleeve inner wall to pass the entering groove, and then remove in stable, smooth and easy entering mounting groove.

Optionally, the end of the elastic sleeve is provided with an expansion inclined plane, and the inner diameter of the expansion inclined plane is gradually increased along the axial direction of the elastic sleeve and in the direction away from the elastic sleeve.

Through adopting above-mentioned technical scheme, the elastic sleeve utilizes the setting on extension inclined plane, not only can be when installing, can be more convenient align and pass the flange with the flange, when shifting out from the installation face in addition, also can more smoothly shift out, reduce the elastic sleeve end limit and the flange and keep out and lead to the deformation of piling up of elastic sleeve.

Optionally, the closing assembly includes a closing piece disposed in the rib, the closing piece is slidably connected in the rib along the circumferential direction of the rib, and one end of the closing piece extends into the inlet groove.

Through adopting above-mentioned technical scheme, when the closure piece slided to the entering inslot along the circumference of flange, alright realization closure piece will get into the groove and shelter from closed effect to restriction elastic sleeve inner wall installation piece is from getting into the inslot and advancing out, stability when guaranteeing the elastic sleeve use.

In a second aspect, the application provides a production process of an aluminum joint ball pin assembly, which adopts the following technical scheme:

a production process of an aluminum joint ball pin assembly is applied to the aluminum joint ball pin assembly and comprises the following steps:

s1, mounting the pin body into the bearing shell;

s2, aligning the mounting block with the entering groove and penetrating through the flange through the entering groove;

and S3, the mounting block enters the mounting groove and moves along the mounting groove to complete the mounting of the elastic sleeve on the mounting surface.

By adopting the technical scheme, after the pin body is installed in the bearing shell, the elastic sleeve penetrates through the flange and moves along the axial direction of the shell under the condition that the installation block of the inner wall of the elastic sleeve is aligned with the entering groove by utilizing the entering groove on the flange; furthermore, when the elastic sleeve passes through the flange, the mounting block on the inner wall of the elastic sleeve can enter the mounting groove under the action of the forward extension of the entering groove, and the elastic sleeve can stably move to the mounting surface by utilizing the matching action of the mounting block and the mounting groove, and the stability of the elastic sleeve is realized under the action of the closing assembly; in the same way, when the elastic sleeve needs to be taken down from the bearing shell, the elastic sleeve is moved to the direction opposite to the mounting direction. Therefore, the elastic sleeve is detachably matched with the bearing shell, the elastic sleeve is independently replaced, unnecessary replacement of the pin body and the bearing shell is reduced, and the production cost is reduced; the process flow of producing the single elastic sleeve by independent injection molding is simpler than the process flow of directly injecting the elastic sleeve onto the bearing shell, so that the production process is simplified, the elastic sleeve can be produced in batch in advance for real-time replacement and standby, and the use convenience is improved; in addition, when the elastic sleeve is damaged and the single body is replaced, the service life of the joint ball pin can be prolonged.

Optionally, the pin body and the bearing shell are made of aluminum.

Through adopting above-mentioned technical scheme, the round pin body adopts the aluminium material with the bearing housing to replace conventional steel material, and thus make round pin body and bearing housing realize the lightweight.

Optionally, the elastic sleeve is made of polyurethane.

Through adopting above-mentioned technical scheme, the elastic sleeve adopts the polyurethane material to utilize the characteristic of polyurethane, make the elastic sleeve more resistant oily, wear-resisting, low temperature resistant, ageing-resistant, increase of service life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the elastic sleeve is detachably matched with the bearing shell, so that the elastic sleeve is independently replaced, unnecessary replacement of the pin body and the bearing shell is reduced, and the production cost is reduced; the process flow of producing the single elastic sleeve by independent injection molding is simpler than the process flow of directly injecting the elastic sleeve onto the bearing shell, so that the production process is simplified, the elastic sleeve can be produced in batch in advance for real-time replacement and standby, and the use convenience is improved; in addition, when the elastic sleeve is damaged and the single body is replaced, the service life of the joint ball pin can be prolonged;

2. when the installation piece got into in the mounting groove and when removing along the direction of mounting groove, the mounting groove of screw thread setting and the installation piece adaptation of same constant pitch screw thread setting can make elastic sleeve rotary motion to reduce elastic sleeve rectilinear movement and the resistance that produces, make elastic sleeve more laborsaving under the screw-thread fit's effect install to the installation face on or shift out from the installation face, reach the effect that the elastic sleeve is convenient, laborsaving to change. In addition, the elastic sleeve moves to the mounting surface in a rotating mode, so that the elastic sleeve generates smaller deformation in the axial direction, the elastic sleeve can be attached to the mounting surface more closely after moving to the mounting surface, and the use stability of the elastic sleeve is guaranteed.

Drawings

FIG. 1 is a schematic structural view of a joint ball and pin assembly according to an embodiment of the present application.

FIG. 2 is a schematic view of the structure of the embodiment highlighting the entry slot and the mounting slot.

FIG. 3 is a schematic structural view of the highlighted elastic sleeve of the embodiment.

FIG. 4 is a schematic view of the embodiment of the highlighted closing sheet.

FIG. 5 is a flow chart of a production process according to an embodiment of the present application.

Description of reference numerals: 1. a pin body; 2. a bearing housing; 21. a seal ring; 22. blocking edges; 221. entering a groove; 222. a moving groove; 23. a mounting surface; 231. mounting grooves; 24. a housing; 3. an elastic sleeve; 31. an extension ramp; 32. mounting blocks; 5. a closure assembly; 51. a closing sheet; 52. a shifting sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an aluminum joint ball pin assembly. Referring to fig. 1, the aluminum joint ball pin assembly comprises a joint ball pin, the joint ball pin comprises a pin body 1 and a bearing shell 2, and the pin body 1 and the bearing shell 2 are made of aluminum materials so as to realize the light weight of the joint ball pin; the hollow setting of bearing housing 2 and the hollow shape of bearing housing 2 and the shape adaptation in the middle part of the round pin body 1, and then realize that the outside in the middle part of round pin body 1 is located to the bearing housing 2 cover.

Referring to fig. 1, the bearing housing 2 includes a housing 24, the housing 24 is a cylindrical arrangement, and the two ends of the housing 24 are respectively provided with a sealing ring 21 for sealing a hollow cavity in the housing 24, so as to realize sealing of the pin body 1 installed in the housing 24, thereby ensuring stable operation of the pin body 1.

Referring to fig. 1 and 2, two ends of the outer wall of the housing 24 are fixedly connected with a circle of flanges 22, the flanges 22 extend along the circumferential direction of the housing 24, an installation surface 23 is arranged between the two circles of flanges 22, and the outer diameter of the installation surface 23 is smaller than that of the flanges 22. The mounting surface 23 is provided with an elastic sleeve 3, and the elastic sleeve 3 is made of polyurethane so as to enhance the service performance and the service life of the elastic sleeve 3; two ends of the elastic sleeve 3 are respectively pressed against the flanges 22 at two ends of the shell 24.

Referring to fig. 2 and 3, the two end portions of the elastic sleeve 3 are integrally formed with expanding inclined surfaces 31, and the inner diameter of each expanding inclined surface 31 gradually increases along the axial direction of the elastic sleeve 3 and in the direction away from the elastic sleeve 3. The elastic sleeve 3 can be aligned with the flange 22 more conveniently by the arrangement of the extension inclined surface 31 when being installed, and can also be moved out more smoothly when being moved out of the installation surface 23, so that the accumulation deformation of the elastic sleeve 3 caused by the abutting of the end edge of the elastic sleeve 3 and the flange 22 is reduced.

Referring to fig. 1 and 2, each ring of the retaining ring 22 is provided with two inlet grooves 221, the two inlet grooves 221 are located on a straight line where the retaining ring has the same diameter, and the bottom of each inlet groove 221 is lower than the outer wall of the mounting surface 23.

Referring to fig. 1 and 2, two mounting grooves 231 are formed in the outer wall of the mounting surface 23, and each mounting groove 231 extends in a thread shape on the mounting surface 23 along the axial direction of the housing 24 for a half cycle; both ends of each mounting groove 231 extend away from both ends of the mounting surface 23, and the end of each mounting groove 231 is aligned with the corresponding entry groove 221 of the end, and the groove bottom of each mounting groove 231 is flush with the groove bottom of the entry groove 221 aligned therewith.

Referring to fig. 2 and 3, the inner wall of the elastic sleeve 3 is fixedly connected with two mounting blocks 32, the two mounting blocks 32 respectively correspond to the two mounting grooves 231, each mounting block 32 extends along the axial direction of the elastic sleeve 3 in a thread shape on the inner wall of the elastic sleeve 3, the two ends of each mounting block 32 extend to the two ends of the elastic sleeve 3 away from each other, and the thread pitch of each mounting block 32 is matched with the thread pitch of the mounting groove 231. The thickness of each mounting block 32 along the radial direction of the elastic sleeve 3 is matched with the depth of the mounting groove 231, and the width of each mounting block 32 is matched with the width of the mounting groove 231. When the installation piece 32 gets into in the mounting groove 231 and when removing along the direction of mounting groove 231, the mounting groove 231 that the screw thread set up and the installation piece 32 adaptation of the same equal pitch screw thread setting can make elastic sleeve 3 rotatory moving to reduce the resistance that elastic sleeve 3 rectilinear movement and produced, make elastic sleeve 3 more laborsaving under screw thread fit's effect install to installation face 23 on or follow installation face 23 and shift out, reach the effect that elastic sleeve 3 is convenient, laborsaving to change. In addition, the elastic sleeve 3 is enabled to generate smaller deformation in the axial direction of the elastic sleeve 3 through the process of rotating and moving the elastic sleeve 3 to the mounting surface 23, so that the elastic sleeve 3 can be attached to the mounting surface 23 more closely after moving to the mounting surface 23, and the use stability of the elastic sleeve 3 is guaranteed.

Referring to fig. 2 and 3, each of the entry grooves 221 is obliquely arranged along the axial direction of the housing 24, and the oblique direction of each entry groove 221 is a spiral direction of the mounting groove 231, so that the entry groove 221 and the mounting groove 231 form a continuous groove body. The entering groove 221 is also inclined to achieve that the entering groove 221 and the installation groove 231 extend forward, so that the installation block 32 on the inner wall of the elastic sleeve 3 can further conveniently penetrate through the entering groove 221, and then can stably and smoothly enter the installation groove 231 to move.

Referring to fig. 1 and 4, a closing assembly 5 for plugging the entry slot 221 is further mounted on the bearing housing 2, the closing assembly 5 includes a closing piece 51 disposed in the rib 22, the closing piece 51 is slidably connected in the rib 22 along the circumferential direction of the rib 22, and one end of the closing piece 51 can slide out of the rib 22 and slide into the entry slot 221. When the closing piece 51 slides into the entering groove 221 along the circumferential direction of the rib 22, the closing piece 51 can shield and close the entering groove 221, so that the inner wall mounting block 32 of the elastic sleeve 3 is limited to enter and exit from the entering groove 221, and the stability of the elastic sleeve 3 during use is guaranteed.

Referring to fig. 2 and 4, a moving groove 222 is formed in a side surface of each rib 22, the moving groove 222 extends to the position of the closing piece 51 along the axial direction of the rib 22, and the moving groove 222 extends along the rib 22 along the circumferential direction of the rib 22 on the side surface of the rib 22; the closing piece 51 is provided with a shifting piece 52 at one side close to the moving groove 222, and the shifting piece 52 extends into the moving groove 222 to realize shifting of the closing piece 51 by the shifting piece 52.

The implementation principle of an aluminum joint ball pin assembly in the embodiment of the application is as follows: usually, the elastic sleeve 3 is mounted on the mounting surface 23 of the bearing housing 2, and the outside diameters of the flanges 22 on both sides of the housing 24 are larger than the outside diameter of the elastic sleeve 3, so as to reinforce the elastic sleeve 3 and increase the difficulty of replacing the elastic sleeve 3. At this time, with the entry groove 221 on the rib 22, the elastic sleeve 3 is moved axially through the rib 22 and along the housing 24 with the inner wall mounting block 32 aligned with the entry groove 221; furthermore, when the elastic sleeve 3 passes through the rib 22, the mounting block 32 on the inner wall of the elastic sleeve 3 can enter the mounting groove 231 under the action of the forward extension of the entering groove 221, and the elastic sleeve 3 can stably move onto the mounting surface 23 by utilizing the matching action of the mounting block 32 and the mounting groove 231, and the stability of the elastic sleeve 3 is realized under the action of the closing component 5; similarly, when the elastic sleeve 3 needs to be removed from the bearing housing 2, the elastic sleeve 3 may be moved in a direction opposite to the mounting direction. Therefore, the elastic sleeve 3 is detachably matched with the bearing shell 2, the elastic sleeve 3 is independently replaced, unnecessary replacement of the pin body 1 and the bearing shell 2 is reduced, and the production cost is reduced; the process flow of producing the single elastic sleeve 3 by independent injection molding is simpler than the process flow of directly injecting the elastic sleeve 3 onto the bearing shell 2, so that the production process is simplified, the elastic sleeve 3 can be produced in batch in advance for replacement in real time for later use, and the use convenience is improved; in addition, when the elastic sleeve 3 is damaged and the single body is replaced, the service life of the joint ball pin can be prolonged.

The embodiment of the application also discloses a production process of the aluminum joint ball pin assembly. Referring to fig. 5, the production process includes the steps of:

s1, the pin body 1 is installed in the bearing shell 2, and the pin body 1 and the bearing shell 2 are made of aluminum materials to replace conventional steel materials, so that the pin body 1 and the bearing shell 2 are light in weight;

s2, aligning the end of the elastic sheath 3 with the rib 22 so that the mounting block 32 is aligned with the entry slot 221 and passes through the rib 22 by entering the slot 221; elastic sleeve 3 adopts the polyurethane material, and elastic sleeve 3 adopts the polyurethane material to utilize the characteristic of polyurethane, make elastic sleeve 3 resistant oily, wear-resisting, low temperature resistant, ageing-resistant more, increase of service life.

S3, the mounting block 32 enters the mounting groove 231 and moves along the mounting groove 231, thereby completing the mounting of the elastic sheath 3 on the mounting surface 23.

The implementation principle of the production process of the aluminum joint ball pin assembly in the embodiment of the application is as follows: usually, the elastic sleeve 3 is mounted on the mounting surface 23 of the bearing housing 2, and the outside diameters of the flanges 22 on both sides of the housing 24 are larger than the outside diameter of the elastic sleeve 3, so as to reinforce the elastic sleeve 3 and increase the difficulty of replacing the elastic sleeve 3. At this time, with the entry groove 221 on the rib 22, the elastic sleeve 3 is moved axially through the rib 22 and along the housing 24 with the inner wall mounting block 32 aligned with the entry groove 221; furthermore, when the elastic sleeve 3 passes through the rib 22, the mounting block 32 on the inner wall of the elastic sleeve 3 can enter the mounting groove 231 under the action of the forward extension of the entering groove 221, and the elastic sleeve 3 can stably move onto the mounting surface 23 by utilizing the matching action of the mounting block 32 and the mounting groove 231, and the stability of the elastic sleeve 3 is realized under the action of the closing component 5; similarly, when the elastic sleeve 3 needs to be removed from the bearing housing 2, the elastic sleeve 3 may be moved in a direction opposite to the mounting direction. Therefore, the elastic sleeve 3 is detachably matched with the bearing shell 2, the elastic sleeve 3 is independently replaced, unnecessary replacement of the pin body 1 and the bearing shell 2 is reduced, and the production cost is reduced; the process flow of producing the single elastic sleeve 3 by independent injection molding is simpler than the process flow of directly injecting the elastic sleeve 3 onto the bearing shell 2, so that the production process is simplified, the elastic sleeve 3 can be produced in batch in advance for replacement in real time for later use, and the use convenience is improved; in addition, when the elastic sleeve 3 is damaged and the single body is replaced, the service life of the joint ball pin can be prolonged.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.