阅读说明：本技术 一种驱动半轴轴承的限位装置 (Limiting device for driving half shaft bearing ) 是由 林栋� 江振伟 郑博延 于 2021-09-28 设计创作，主要内容包括：本申请涉及一种驱动半轴轴承的限位装置,涉及汽车技术领域,其包括支架主体和封板,支架主体具有一开口朝上的第一弧形槽,第一弧形槽的一侧沿其圆周方向朝上凸设形成第一限位板；封板一端与支架主体的一端可转动连接,另一端与支架主体可拆卸连接；且封板具有一开口朝下的第二弧形槽,第二弧形槽的一侧沿其圆周方向朝下凸设形成第二限位板,第二限位板与第一限位板分设于支架主体的两侧；使用时,封板与支架主体连接,第一弧形槽与第二弧形槽共同形成用于限制轴承径向移动的限位空间,轴承位于限位空间内,且第一限位板和第二限位板分别抵持于轴承的两侧,以限制轴承的轴向移动。本申请的支架主体和封板可作为整体零件预先进行线下分装。(The application relates to a limiting device for driving a half shaft bearing, which relates to the technical field of automobiles and comprises a support main body and a sealing plate, wherein the support main body is provided with a first arc-shaped groove with an upward opening, and one side of the first arc-shaped groove is upwards convexly arranged along the circumferential direction to form a first limiting plate; one end of the sealing plate is rotatably connected with one end of the bracket main body, and the other end of the sealing plate is detachably connected with the bracket main body; the sealing plate is provided with a second arc-shaped groove with a downward opening, one side of the second arc-shaped groove is downwards convexly arranged along the circumferential direction to form a second limiting plate, and the second limiting plate and the first limiting plate are respectively arranged at two sides of the bracket main body; during the use, the shrouding is connected with the support main part, and first arc wall forms the spacing space that is used for restricting bearing radial movement with the second arc wall jointly, and the bearing is located spacing space, and just first limiting plate and second limiting plate support respectively and hold in the both sides of bearing to the axial displacement of restriction bearing. The utility model provides a sub-packaging under support main part and shrouding can regard as the advanced row line of whole part in advance.)

1. A limit device for driving a half-shaft bearing is characterized by comprising:

the bracket comprises a bracket main body (1) and a bracket body, wherein the bracket main body is provided with a first arc-shaped groove (10) with an upward opening, and one side of the first arc-shaped groove (10) is upwards convexly arranged along the circumferential direction to form a first limiting plate (11);

the sealing plate (2) has one end rotatably connected with one end of the bracket main body (1) and the other end detachably connected with the bracket main body (1); the sealing plate (2) is provided with a second arc-shaped groove (20) with a downward opening, one side of the second arc-shaped groove (20) is downwards protruded along the circumferential direction to form a second limiting plate (21), and the second limiting plate (21) and the first limiting plate (11) are respectively arranged on two sides of the bracket main body (1);

during the use, shrouding (2) with support main part (1) is connected, first arc wall (10) with second arc wall (20) form spacing space (4) that are used for restricting bearing (3) radial movement jointly, bearing (3) are located in spacing space (4), just first limiting plate (11) with second limiting plate (21) support respectively in the both sides of bearing (3), in order to restrict the axial displacement of bearing (3).

2. The limiting device for driving axle bearings according to claim 1, wherein the first arc-shaped groove (10) is in clearance fit with the bearing (3), and the clearance value is 0.009 mm-0.057 mm; and/or the diameter of the second arc-shaped groove (20) is 0.7-2.3 mm larger than that of the bearing (3).

3. The limit device for driving a side bearing according to claim 1, wherein:

a first pin hole (22) penetrating through the sealing plate (2) is formed in the sealing plate (2), and a second pin hole penetrating through the bracket main body (1) is formed in the bracket main body (1);

the sealing plate (2) is connected with the support main body (1) through a pin shaft (5), and the pin shaft (5) penetrates through the first pin hole (22) and the second pin hole.

4. The limiting device for driving axle bearings according to claim 3, wherein the first pin hole (22) is in clearance fit with the pin shaft (5), and the clearance value is 0.3mm to 0.748 mm.

5. The limiting device for driving a half-shaft bearing according to claim 3, wherein the second pin hole is in interference fit with the pin shaft (5), and the interference magnitude is 0.005 mm-0.035 mm.

6. The limit device for driving a side bearing according to claim 1, wherein:

the sealing plate (2) is provided with a bolt mounting notch (23) penetrating through the sealing plate (2), and the bracket main body (1) is provided with a threaded hole;

the seal plate (2) is connected with the support main body (1) through a bolt (6), and the bolt (6) is in threaded connection with the bolt mounting notch (23) and the threaded hole.

7. The limiting device for driving a half-shaft bearing according to claim 6, wherein the bolt mounting notch (23) is in clearance fit with the bolt (6), and the clearance value is 0mm to 0.2 mm.

8. The limiting device of the driving axle bearing according to claim 1, wherein the diameter of the first arc-shaped groove (10) is 0.009mm to 0.057mm larger than the diameter of the bearing (3), and the diameter of the first limiting plate (11) is 5.6 mm to 6.4mm smaller than the diameter of the bearing (3).

9. The limit device for driving a side bearing according to claim 1, wherein the second limit plate (21) is disposed obliquely away from the first limit plate (11).

10. The limit device for driving a side bearing according to claim 9, wherein the angle of inclination of the second limit plate (21) is 3 degrees.

Technical Field

The application relates to the technical field of automobiles, in particular to a limiting device for driving a half shaft bearing.

Background

The driving half shaft is used as a key component of a transmission system, and the long handle section of the driving half shaft is provided with a deep groove ball bearing in interference press fitting, and the deep groove ball bearing is used for supporting the driving half shaft and transmitting rotary motion. Therefore, the installation and fixation of the deep groove ball bearing is an important part in the installation and fixation of the driving half shaft, and influences the performance, cost, manufacturability, weight and other aspects of the whole scheme, so the selection of the installation and fixation scheme of the deep groove ball bearing is more critical.

In the related art, the installation and fixation of the bearing generally includes axial limitation and radial limitation, as shown in fig. 1, the limiting device of the bearing 1' includes a fixing support 2', a bearing hole is formed in the fixing support 2', the fixing support 2' is sleeved on an outer ring of the bearing 1' through the bearing hole to realize the radial limitation of the bearing, and in order to facilitate the assembly, the matching of the bearing hole and the outer ring of the bearing is clearance fit; still be equipped with the shoulder hole coaxial with the dead eye in the fixed bolster 2', the shoulder hole supports and holds in one side of bearing 1', and the opposite side of rethread spacing separation blade 3 'support holding in bearing 1' realizes spacing the axial of bearing 1', and wherein spacing separation blade 3' is connected to fixed bolster 2 'through two at least bolts 4', plays its limiting displacement.

However, in the above solution, the assembling steps of the bearing 1' and the limiting device are as follows: firstly, the fixed support 2 'is fixedly connected with an engine or a motor, then the bearing 1' penetrates into a bearing hole of the fixed support 2', and finally, the limiting separation blade 3' is installed, and the limiting separation blade 3 'is connected with the fixed support 2' through two bolts 4 'so as to limit the bearing 1'. Therefore, the axial spacing of the bearing 1' can be realized only by matching the stepped hole, the spacing baffle plate 3' and the two bolts 4', the spacing baffle plate 3' and the fixing support 2' cannot be pre-assembled into a whole under a row line, and the spacing baffle plate and the fixing support can only be installed on the line step by step, so that the problems of more parts, more complex on-line assembly process, higher cost and larger system weight exist.

Disclosure of Invention

The embodiment of the application provides a stop device of drive half shaft bearing to solve the spacing cooperation that needs through shoulder hole, spacing separation blade and two bolts of bearing among the correlation technique and just can realize, fixed bolster, spacing separation blade and two bolts are three kinds of different parts, can't advance partial shipment under the row line in advance, have that part quantity is more, assembly process is more complicated, the cost is higher on the line, and the great problem of system weight.

In a first aspect, a limit device for driving a half-shaft bearing is provided, which includes:

the bracket comprises a bracket main body and a bracket body, wherein the bracket main body is provided with a first arc-shaped groove with an upward opening, and one side of the first arc-shaped groove is upwards convexly arranged along the circumferential direction to form a first limiting plate;

one end of the sealing plate is rotatably connected with one end of the bracket main body, and the other end of the sealing plate is detachably connected with the bracket main body; the sealing plate is provided with a second arc-shaped groove with a downward opening, one side of the second arc-shaped groove is arranged in a downward protruding mode along the circumferential direction of the second arc-shaped groove to form a second limiting plate, and the second limiting plate and the first limiting plate are arranged on two sides of the support main body respectively;

during the use, the shrouding with the support main part is connected, first arc wall with the second arc wall forms the spacing space that is used for restricting bearing radial movement jointly, the bearing is located in the spacing space, just first limiting plate with the second limiting plate support respectively hold in the both sides of bearing, in order to restrict the axial displacement of bearing.

In the related art, a limiting device of a bearing comprises a fixed support, a bearing hole is formed in the fixed support, the fixed support is sleeved on an outer ring of the bearing through the bearing hole so as to realize radial limiting of the bearing, and the bearing hole and the outer ring of the bearing are in clearance fit for convenient assembly; still be equipped with the shoulder hole coaxial with the dead eye in the fixed bolster, the shoulder hole supports holds in one side of bearing, and the spacing separation blade of rethread supports holds in the opposite side of bearing, realizes spacing to the axial of bearing, and wherein spacing separation blade plays its limiting displacement through two at least bolted connection to the fixed bolster on.

However, in the above scheme, the assembling steps of the bearing and the limiting device are as follows: firstly, the fixed support is fixedly connected with an engine or a motor, then the bearing penetrates into a bearing hole of the fixed support, finally, the limiting separation blade is installed, and the limiting separation blade is connected with the fixed support through two bolts so as to limit the bearing. Therefore, the axial spacing of the bearing can be realized only by the matching of the stepped hole, the spacing baffle plate and the two bolts, the spacing baffle plate and the fixed support cannot be integrally formed by pre-arranging the sub-line, the spacing baffle plate and the fixed support can only be installed on the line step by step, and the problems of more parts, more complex on-line assembly process, higher cost and larger system weight exist.

The application steps of the limiting device for driving the half-shaft bearing of the embodiment of the application are as follows:

firstly, sub-packaging a sealing plate and a support main body on line, and rotatably connecting one end of the sealing plate with one end of the support main body to form an integral part; then connecting the integral part with an engine or a motor; then, the bearing is placed in the first arc-shaped groove of the support main body, and the first limiting plate is abutted against one side of the bearing; and finally, rotating the sealing plate to connect the other end of the sealing plate with the other end of the support main body, wherein the limiting space formed by the first arc-shaped groove and the second arc-shaped groove together limits the radial movement of the bearing, and the second limiting plate is abutted against the other side of the bearing, so that the axial movement of the bearing is limited by the first limiting plate and the second limiting plate together.

On this application embodiment distributes support main part and shrouding with restriction bearing axial displacement and radial movement's structure, the spacing space that the second arc wall of the first arc wall through the support main part and the shrouding formed jointly limits the radial movement of bearing to support respectively in the both sides of bearing through the first limiting plate with first arc wall integrated into one piece, and with shrouding integrated into one piece's second limiting plate, with the axial displacement of restriction bearing. And support main part and shrouding are whole parts, and the one end of shrouding can be assembled under the line with the one end of support main part, when on-line assembly, only need install the bearing after, be connected the other end of shrouding and the other end of support main part, can accomplish spacing of bearing

Therefore, the integral part formed by the bracket main body and the sealing plate can be used as a single part for part management, so that the part management is facilitated, and the management cost is saved; and when the on-line assembly is carried out, the operation is convenient, the assembly procedures are few, the whole weight of the limiting device is reduced, and the cost is lower.

In some embodiments, the first arc-shaped groove is in clearance fit with the bearing, and the clearance value is 0.009 mm-0.057 mm; and/or the diameter of the second arc-shaped groove is 0.7-2.3 mm larger than that of the bearing.

The outer diameter of the bearing of the embodiment of the application is 55mm, and the diameter of the second arc-shaped groove isIs 55.7 to 57.3mm, preferably 56.5 mm. After assembling the bearing to first arc wall in, the in-process of being connected shrouding and support main part because the diameter ratio bearing of second arc wall is big, the shrouding passes through elastic deformation, presses and holds on the bearing to realize the spacing space that first arc wall and second arc wall formed jointly and the adaptation of bearing, thereby the radial movement of restriction bearing, and realize the support to the drive semi-axis.

In some embodiments:

the sealing plate is provided with a first pin hole penetrating through the sealing plate, and the bracket main body is provided with a second pin hole penetrating through the bracket main body;

the closing plate is connected with the support main body through a pin shaft, and the pin shaft penetrates through the first pin hole and the second pin hole.

This application embodiment is connected shrouding and support main part through the round pin axle under online, realizes the rotatable coupling of shrouding and support main part.

In some embodiments, the first pin hole and the pin shaft are in clearance fit, and the clearance value is 0.3 mm-0.748 mm.

The first pin hole and the pin shaft are in small clearance fit, so that the pin shaft is conveniently inserted into the first pin hole, and the sealing plate is conveniently rotated, and the second limiting plate smoothly abuts against one side of the bearing after the sealing plate is fixed with the support main body.

In some embodiments, the second pin hole and the pin shaft are in interference fit, and the interference magnitude is 0.005 mm-0.035 mm.

The second pin hole is in interference fit with the pin shaft to limit the sealing plate to move along the axial direction of the pin shaft and prevent the pin shaft from moving in the second pin hole.

In some embodiments:

the sealing plate is provided with a bolt mounting notch penetrating through the sealing plate, and the support main body is provided with a bolt hole;

the seal plate is connected with the support main body through a bolt, and the bolt is in threaded connection with the bolt mounting notch and the threaded hole.

The application steps of the limiting device for driving the half-shaft bearing of the embodiment of the application are as follows:

firstly, sub-packaging a sealing plate and a support main body on line, and rotationally connecting one end of the sealing plate and one end of the support main body through a pin shaft to form an integral part; then connecting the integral part with an engine or a motor; then, the bearing is placed in the first arc-shaped groove of the support main body, and the first limiting plate is abutted against one side of the bearing; and finally, rotating the sealing plate, connecting the other end of the sealing plate with the other end of the support main body through a bolt, screwing the bolt in the bolt installation notch and the threaded hole, limiting the radial movement of the bearing in a limiting space formed by the first arc-shaped groove and the second arc-shaped groove together, enabling the second limiting plate to abut against the other side of the bearing, and limiting the axial movement of the bearing through the first limiting plate and the second limiting plate together.

In some embodiments, the bolt mounting notch and the bolt are in clearance fit, and the clearance value is 0 mm-0.2 mm.

Because there is certain error in the assembly position between bolt and the bolt installation opening, through setting up bolt installation opening and bolt for the close clearance fit, in the allowed error range, realize the bolt spiro union in bolt installation opening.

In some embodiments, the diameter of the first arc-shaped groove is 0.009mm to 0.057mm larger than the diameter of the bearing, and the diameter of the first limit plate is 5.6 mm to 6.4mm smaller than the diameter of the bearing.

First limiting plate forms the stair structure with first arc groove, and first limiting plate extends to the side of bearing to the realization is spacing to the axial of bearing.

In some embodiments, the second limiting plate is disposed obliquely away from the first limiting plate.

Because the shrouding is rotatory to passing through bolted connection with the support main part, the top of bearing is acceptd to the second arc wall of shrouding in, in order to prevent because assembly tolerance, lead to the bearing can't accept to the second arc wall in, the second limiting plate sets up towards the direction slope of keeping away from first limiting plate, has increased the area of acceping of second arc wall for the bearing can assemble smoothly to the second arc wall in, and the second limiting plate supports the side of holding in the bearing, with the realization spacing to the axial of bearing.

In some embodiments, the second limiting plate is inclined at an angle of 3 degrees.

The inclination angle of the second limiting plate is not easy to be too large, and the second limiting plate cannot be abutted against the side face of the bearing due to the too large inclination angle, so that the axial limiting effect on the bearing cannot be achieved.

This application embodiment is through "first arc wall is clearance fit with the bearing, the clearance value is 0.009mm ~ 0.057 mm", "the diameter ratio of second arc wall is 0.7 ~ 2.3mm bigger than the diameter of bearing", and "first pinhole is clearance fit with the round pin axle, the clearance value is the design cooperation of 0.3mm ~ 0.748 mm", make the shrouding be connected the back through bolt and support main part, shrouding accessible elastic deformation, press and hold on the bearing, in order to realize the spacing space of first arc wall and the common formation of second arc wall and the adaptation of bearing, thereby the radial movement of restriction bearing, and realize the support to the drive semi-axis.

This application embodiment is through "second pinhole and round pin axle be interference fit, and the magnitude of interference is 0.005mm ~ 0.035 mm" and "bolt installation opening is clearance fit with the bolt, and the clearance value is the design cooperation of 0mm ~ 0.2 mm", can restrict the axial displacement of shrouding, carries out the axial of accessible second limiting plate realization to the bearing spacing.

The diameter ratio of this application embodiment through "first arc wall is 0.009mm ~ 0.057mm big than the diameter of bearing, and the diameter ratio of first limiting plate is little 5.6 ~ 6.4 mm's design than the diameter of bearing, realizes spacing to the axial of bearing.

Through the design that "the second limiting plate sets up towards the direction slope of keeping away from first limiting plate", can make things convenient for the shrouding to the installation operation before the spacing fastening of bearing, guarantee the convenience of assembling between shrouding and the bearing.

The beneficial effect that technical scheme that this application provided brought includes: the integral part formed by the bracket main body and the sealing plate can be used as a single part for part management, so that the part management is facilitated, and the management cost is saved; and when the on-line assembly is carried out, the operation is convenient, the assembly procedures are few, the whole weight of the limiting device is reduced, and the cost is lower.

The embodiment of the application provides a stop device of drive half shaft bearing, because on this application embodiment distributes support main part and shrouding with the structure that restricts bearing axial displacement and radial movement, the spacing space that the second arc wall through the first arc wall of support main part and shrouding formed jointly, the radial movement of restriction bearing to through the first limiting plate with first arc wall integrated into one piece, and support respectively with the second limiting plate of shrouding integrated into one piece and hold in the both sides of bearing, in order to restrict the axial displacement of bearing. The support main body and the seal plate are integrated parts, one end of the seal plate and one end of the support main body can be assembled on line from bottom to top, and when the support main body and the seal plate are assembled on line, the other end of the seal plate is connected with the other end of the support main body only after the bearing is installed, so that the limiting of the bearing can be completed; and when the on-line assembly is carried out, the operation is convenient, the assembly procedures are few, the whole weight of the limiting device is reduced, and the cost is lower.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of a related art position limiting device;

FIG. 2 is a schematic structural diagram of a limiting device for driving a half-shaft bearing according to an embodiment of the present disclosure;

fig. 3 is a schematic view illustrating an assembly of a limiting device and a bearing according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a closure plate according to an embodiment of the present application;

fig. 5 is a schematic view in the direction of a-a in fig. 4.

In the figure: 1', a bearing; 2', fixing a bracket; 3', a limiting baffle plate; 4', a bolt; 1. a stent body; 10. a first arc-shaped slot; 11. a first limit plate; 2. closing the plate; 20. a second arc-shaped slot; 21. a second limiting plate; 22. a first pin hole; 23. installing a notch on the bolt; 3. a bearing; 4. a limiting space; 5. a pin shaft; 6. and (4) bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The flow diagrams depicted in the figures are merely illustrative and do not necessarily include all of the elements and operations/steps, nor do they necessarily have to be performed in the order depicted. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

Referring to fig. 1, in the related art, a limiting device of a bearing 1' includes a fixing support 2', a bearing hole is formed in the fixing support 2', the fixing support 2' is sleeved on an outer ring of the bearing 1' through the bearing hole to realize radial limiting of the bearing, and for convenient assembly, the bearing hole is in clearance fit with the outer ring of the bearing; still be equipped with the shoulder hole coaxial with the dead eye in the fixed bolster 2', the shoulder hole supports and holds in one side of bearing 1', and the opposite side of rethread spacing separation blade 3 'support holding in bearing 1' realizes spacing the axial of bearing 1', and wherein spacing separation blade 3' is connected to fixed bolster 2 'through two at least bolts 4', plays its limiting displacement.

However, in the above solution, the assembling steps of the bearing 1' and the limiting device are as follows: firstly, the fixed support 2 'is fixedly connected with an engine or a motor, then the bearing 1' penetrates into a bearing hole of the fixed support 2', and finally, the limiting separation blade 3' is installed, and the limiting separation blade 3 'is connected with the fixed support 2' through two bolts 4 'so as to limit the bearing 1'. Therefore, the axial spacing of the bearing 1' can be realized only by matching the stepped hole, the spacing baffle plate 3' and the two bolts 4', the spacing baffle plate 3' and the fixing support 2' cannot be pre-assembled into a whole under a row line, and the spacing baffle plate and the fixing support can only be installed on the line step by step, so that the problems of more parts, more complex on-line assembly process, higher cost and larger system weight exist.

In view of the above technical problems, the embodiment of the present application provides a limiting device for driving a half-shaft bearing, and as shown in fig. 2 and fig. 3, the limiting device includes a bracket main body 1 and a sealing plate 2, the bracket main body 1 has a first arc-shaped groove 10 with an upward opening, and one side of the first arc-shaped groove 10 is convexly provided upward along a circumferential direction thereof to form a first limiting plate 11; one end of the sealing plate 2 is rotatably connected with one end of the bracket main body 1, and the other end is detachably connected with the bracket main body 1; the sealing plate 2 is provided with a second arc-shaped groove 20 with a downward opening, one side of the second arc-shaped groove 20 is downwards convexly arranged along the circumferential direction to form a second limiting plate 21, and the second limiting plate 21 and the first limiting plate 11 are respectively arranged at two sides of the bracket main body 1; during the use, shrouding 2 is connected with support main part 1, and first arc wall 10 forms the spacing space 4 that is used for restricting bearing 3 radial movement jointly with second arc wall 20, and bearing 3 is located spacing space 4, and first limiting plate 11 and second limiting plate 21 support respectively and hold in the both sides of bearing 3 to restriction bearing 3's axial displacement.

The application steps of the limiting device for driving the half-shaft bearing of the embodiment of the application are as follows:

firstly, sub-packaging a sealing plate 2 and a support main body 1 on line, and rotatably connecting one end of the sealing plate 2 and one end of the support main body 1 to form an integral part; then connecting the integral part with an engine or a motor; then, the bearing 3 is placed in the first arc-shaped groove 10 of the bracket main body 1, and the first limiting plate 11 is abutted against one side of the bearing 3; at last, the sealing plate 2 is rotated, the other end of the sealing plate 2 is connected with the other end of the support main body 1, the radial movement of the bearing 3 is limited by the limiting space 4 formed by the first arc-shaped groove 10 and the second arc-shaped groove 20, the second limiting plate 21 is abutted to the other side of the bearing 3, and the axial movement of the bearing 3 is limited by the first limiting plate 11 and the second limiting plate 21.

On this application embodiment distributes support main part 1 and shrouding 2 with the structure of restricting 3 axial displacement of bearing and radial movement, the spacing space 4 that second arc wall 20 through the first arc wall 10 of support main part 1 and shrouding 2 formed jointly limits the radial movement of bearing 3 to through the first limiting plate 11 with first arc wall 10 integrated into one piece, and support respectively with the second limiting plate 21 of shrouding 2 integrated into one piece and hold in the both sides of bearing 3, in order to restrict the axial displacement of bearing 3. And support main part 1 and shrouding 2 are the integral part, and the one end of shrouding 2 and support main part 1's one end can be assembled under on line, and when assembling on line, only need install bearing 3 back, be connected the other end of shrouding 2 and support main part 1's the other end, can accomplish bearing 3's spacing.

Therefore, the integral part formed by the bracket main body 1 and the sealing plate 2 in the embodiment of the application can be used as a single part for part management, so that the part management is facilitated, and the management cost is saved; and when the on-line assembly is carried out, the operation is convenient, the assembly procedures are few, the whole weight of the limiting device is reduced, and the cost is lower.

Optionally, referring to fig. 4, the first arc-shaped groove 10 is in clearance fit with the bearing 3, and the clearance value is 0.009 mm-0.057 mm; and/or the diameter of the second arc-shaped groove 20 is 0.7-2.3 mm larger than that of the bearing 3.

First arc wall 10 and bearing 3 of this application embodiment are little clearance fit, make things convenient for bearing 3 to assemble to first arc wall 10 in promptly, can not very big surplus again supply the bearing 3 activity.

The outer diameter of the bearing 3 of the embodiment of the application is 55mm, and the diameter of the second arc-shaped groove 20 isIs 55.7 to 57.3mm, preferably 56.5 mm. After assembling bearing 3 to first arc wall 10 in, the in-process of being connected shrouding 2 and support main part 1, because the diameter ratio of second arc wall 20 is big than the diameter of bearing 3, shrouding 2 holds on bearing 3 through elastic deformation, the pressure to realize the adaptation of spacing space 4 and bearing 3 that first arc wall 10 and second arc wall 20 formed jointly, thereby restriction bearing 3's radial movement, and the realization is to the support of drive semi-axis.

Optionally, the closing plate 2 is provided with a first pin hole 22 penetrating through the closing plate 2, and the bracket main body 1 is provided with a second pin hole penetrating through the bracket main body 1; the closing plate 2 is connected with the bracket main body 1 through a pin 5, and the pin 5 penetrates through the first pin hole 22 and the second pin hole.

This application embodiment is connected shrouding 2 and support main part 1 through round pin axle 5 under the line, realizes shrouding 2 and support main part 1's rotatable coupling.

Preferably, the first pin hole 22 is in clearance fit with the pin 5, and the clearance value is 0.3 mm-0.748 mm.

First pinhole 22 and round pin axle 5 are little clearance fit, make things convenient for not only round pin axle 5 to insert in first pinhole 22, make things convenient for shrouding 2 to rotate moreover to make shrouding 2 and support main part 1 fixed back, second limiting plate 21 supports smoothly and holds in one side of bearing 3.

Preferably, the second pin hole is in interference fit with the pin shaft 5, and the interference magnitude is 0.005 mm-0.035 mm.

The second pin hole is in interference fit with the pin shaft 5 to limit the closing plate 2 to move along the axial direction of the pin shaft 5, and the pin shaft 5 is prevented from moving in the second pin hole.

Optionally, referring to fig. 2 and 3, a bolt mounting notch 23 penetrating through the closing plate 2 is formed in the closing plate 2, and a threaded hole is formed in the bracket main body 1; the closing plate 2 is connected with the support main body 1 through a bolt 6, and the bolt 6 is in threaded connection with the bolt mounting notch 23 and the threaded hole.

The application steps of the limiting device for driving the half-shaft bearing of the embodiment of the application are as follows:

firstly, sub-packaging a sealing plate 2 and a support main body 1 on line, and rotationally connecting one end of the sealing plate 2 and one end of the support main body 1 through a pin shaft 5 to form an integral part; then connecting the integral part with an engine or a motor; then, the bearing 3 is placed in the first arc-shaped groove 10 of the bracket main body 1, and the first limiting plate 11 is abutted against one side of the bearing 3; finally, the sealing plate 2 is rotated, the other end of the sealing plate 2 is connected with the other end of the support main body 1 through the bolt 6, the bolt 6 is screwed in the bolt installation notch 23 and the threaded hole, the limiting space 4 formed by the first arc-shaped groove 10 and the second arc-shaped groove 20 at the moment limits the radial movement of the bearing 3, the second limiting plate 21 is abutted to the other side of the bearing 3, and the axial movement of the bearing 3 is limited by the first limiting plate 11 and the second limiting plate 21.

Preferably, the bolt mounting notch 23 is in clearance fit with the bolt 6, and the clearance value is 0 mm-0.2 mm.

Because there is certain error in the assembly position between bolt 6 and the bolt installation notch 23, through setting up bolt installation notch 23 and bolt 6 for the close clearance fit, in the allowed error range, realize bolt 6 spiro union in bolt installation notch 23.

Preferably, the diameter of the first arc-shaped groove 10 is 0.009mm to 0.057mm larger than the diameter of the bearing 3, and the diameter of the first limit plate 11 is 5.6 mm to 6.4mm smaller than the diameter of the bearing 3.

First limiting plate 11 forms the stair structure with first arc wall 10, and first limiting plate 11 extends to the side of bearing 3 to it is spacing to realize the axial of bearing 3.

Alternatively, referring to fig. 5, the second stopper plate 21 is disposed obliquely away from the first stopper plate 11.

Because shrouding 2 rotates to pass through bolted connection with support main part 1, the top of bearing 3 is acceptd to shrouding 2 in the second arc wall 20, in order to prevent because assembly tolerance, lead to bearing 3 can't accept to the second arc wall 20 in, second limiting plate 21 sets up towards the direction slope of keeping away from first limiting plate 11, the area of acceping of second arc wall 20 has been increased, make bearing 3 assemble smoothly to the second arc wall 20 in, and second limiting plate 21 supports and holds in the side of bearing 3, in order to realize spacing to the axial of bearing 3.

Preferably, as shown in fig. 5, the inclination angle α of the second stopper plate 21 is 3 degrees.

The inclination angle of the second limiting plate 21 is not too large, which may cause the second limiting plate 21 to be unable to abut against the side surface of the bearing 3, and thus the axial limiting effect on the bearing 3 may not be achieved.

This application embodiment is through "first arc wall 10 is clearance fit with bearing 3, the clearance value is 0.009mm ~ 0.057 mm", "the diameter ratio of second arc wall 20 is 0.7 ~ 2.3mm bigger than the diameter of bearing 3", and "first pinhole 22 is clearance fit with round pin axle 5, the clearance value is the design cooperation of 0.3mm ~ 0.748 mm", make shrouding 2 be connected the back through bolt 6 and support main part 1, shrouding 2 accessible elastic deformation, press and hold on bearing 3, in order to realize the common spacing space 4 that forms of first arc wall 10 and second arc wall 20 and bearing 3's adaptation, thereby restrict bearing 3's radial movement, and realize the support to the drive semi-axis.

This application embodiment is through "second pinhole and round pin axle 5 be interference fit, and the magnitude of interference is 0.005mm ~ 0.035 mm" and "bolt installation opening 23 is clearance fit with bolt 6, and the clearance value is the design cooperation of 0mm ~ 0.2 mm", can restrict shrouding 2's axial displacement, carries out accessible second limiting plate 21 and realizes the axial spacing to bearing 3.

The diameter ratio of this application embodiment through "first arc wall 10 is 0.009mm ~ 0.057mm big than the diameter of bearing 3, and the diameter ratio of first limiting plate 11 is 5.6 ~ 6.4 mm's the design less than the diameter of bearing 3, realizes spacing the axial of bearing 3.

This application embodiment can make things convenient for shrouding 2 to the installation operation before 3 spacing fastenings of bearing through the design that "the second limiting plate 21 sets up towards the direction slope of keeping away from first limiting plate 11", guarantees the convenience of assembling between shrouding 2 and the bearing 3.

The beneficial effects that technical scheme that this application embodiment provided brought include:

firstly, the method comprises the following steps: the weight is reduced by more than 30%, and meanwhile, the material of the bracket main body 1 is reduced, and the cost is reduced;

II, secondly: the bracket main body 1 and the sealing plate 2 can be separately assembled under the wire and managed as a single part, so that the management cost and the part cost are lower;

thirdly, the method comprises the following steps: compared with the scheme in the related art that 2 bolts need to be fastened along the radial direction, and the operation space is limited (limited by the larger driving half shaft ball joint, the interfaces of the electric driving shaft and the like, and the operation space is small), the embodiment of the application only needs to fasten 1 bolt, and the operation angle is better and more convenient.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.