CN113682089B - Limiting device for driving half shaft bearing - Google Patents
Limiting device for driving half shaft bearing Download PDFInfo
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- CN113682089B CN113682089B CN202111145702.5A CN202111145702A CN113682089B CN 113682089 B CN113682089 B CN 113682089B CN 202111145702 A CN202111145702 A CN 202111145702A CN 113682089 B CN113682089 B CN 113682089B
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- 230000000670 limiting effect Effects 0.000 title claims abstract description 160
- 238000007789 sealing Methods 0.000 claims abstract description 94
- 230000033001 locomotion Effects 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 15
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/18—Arrangement of bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The application relates to a limiting device for driving a half shaft bearing, and relates to the technical field of automobiles, and the limiting device comprises a bracket main body and a sealing plate, 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 of the first arc-shaped groove 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 of the second arc-shaped groove 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; when the sealing plate is used, the sealing plate is connected with the support main body, the first arc-shaped groove and the second arc-shaped groove form a limiting space for limiting the radial movement of the bearing together, the bearing is located in the limiting space, and the first limiting plate and the second limiting plate are respectively propped against the two sides of the bearing so as to limit the axial movement of the bearing. The support main body and the shrouding of this application can be as whole part advance line sub-packaging down.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a limiting device for a driving half shaft bearing.
Background
The driving half shaft is used as a key part of a transmission system, and the long handle section of the driving half shaft is provided with a deep groove ball bearing which is pressed by interference fit and 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 various aspects of the overall scheme, such as performance, cost, manufacturability, weight and the like, so that the selection of the installation and fixation scheme of the deep groove ball bearing is critical.
In the related art, the mounting and fixing of the bearing generally comprises axial limiting and radial limiting, and as shown in fig. 1, the limiting device of the bearing 1' comprises a fixed bracket 2', a bearing hole is formed in the fixed bracket 2', the fixed bracket 2' is sleeved on the outer ring of the bearing 1' through the bearing hole so as to realize radial limiting of the bearing, and the fit between the bearing hole and the outer ring of the bearing is clearance fit for convenient assembly; the fixed support 2 'is also internally provided with a stepped hole coaxial with the bearing hole, the stepped hole is propped against one side of the bearing 1', and the other side of the bearing 1 'is propped against by the limiting baffle 3', so that the axial limiting of the bearing 1 'is realized, wherein the limiting baffle 3' is connected to the fixed support 2 'through at least two bolts 4', and the limiting effect is exerted.
However, in the above-described solution, the assembly steps of the bearing 1' and the limiting device are: firstly, fixedly connecting a fixed support 2 'with an engine or a motor, penetrating a bearing 1' into a bearing hole of the fixed support 2', finally, installing a limiting baffle 3', and connecting the limiting baffle 3 'with the fixed support 2' through two bolts 4', so as to limit the bearing 1'. Therefore, the axial limit of the bearing 1' can be realized by the cooperation of the stepped hole, the limit baffle 3' and the two bolts 4', the limit baffle 3' and the fixed bracket 2' cannot be assembled in advance in a line to form a whole, the two can only be assembled in steps on line, and 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 semi-axis bearing to solve among the correlation technique axial spacing of bearing need through the shoulder hole, spacing separation blade and two bolt's cooperation just can be realized, fixed bolster, spacing separation blade and two bolts are three kinds of different parts, can't advance the lower partial shipment of line, have part quantity more, on-line assembly technology is more complicated, the cost is higher, and the great problem of system weight.
In a first aspect, there is provided a stop device for a drive axle bearing, comprising:
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 of the first arc-shaped groove 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 of the second arc-shaped groove 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;
when the sealing plate is used, the sealing plate is connected with the support main body, the first arc-shaped groove and the second arc-shaped groove form a limiting space for limiting the radial movement of the bearing together, the bearing is located in the limiting space, and the first limiting plate and the second limiting plate are respectively propped against the two sides of the bearing so as to limit the axial movement of the bearing.
In the related art, the limiting device of the bearing comprises a fixed bracket, a bearing hole is formed in the fixed bracket, the fixed bracket is sleeved on the outer ring of the bearing through the bearing hole, so that radial limiting of the bearing is realized, and the bearing hole is in clearance fit with the outer ring of the bearing for convenient assembly; the fixed support is internally provided with a stepped hole coaxial with the bearing hole, the stepped hole is propped against one side of the bearing, and the other side of the bearing is propped against by the limiting baffle plate, so that the axial limiting of the bearing is realized, and the limiting baffle plate is connected to the fixed support through at least two bolts to exert the limiting effect.
However, in the above scheme, the assembly steps of the bearing and the limiting device are as follows: the fixing support is fixedly connected with the engine or the motor, the bearing penetrates into a bearing hole of the fixing support, the limiting baffle is mounted at last, and the limiting baffle is connected with the fixing support through two bolts so as to limit the bearing. Therefore, axial limiting of the bearing can be realized through matching of the stepped hole, the limiting baffle and the two bolts, the limiting baffle and the fixed support cannot be assembled into a whole in advance, the limiting baffle and the fixed support can be installed in steps on line, 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 the driving half shaft bearing are as follows:
firstly, sub-packaging a sealing plate and a bracket main body on line, and rotationally connecting one end of the sealing plate with one end of the bracket main body to form an integral part; then the integral part is connected with an engine or a motor; then placing the bearing in a first arc-shaped groove of the bracket main body, and enabling a first limiting plate to prop against one side of the bearing; and finally, the sealing plate is rotated, the other end of the sealing plate is connected with the other end of the support body, at the moment, the radial movement of the bearing is limited by a limiting space formed by the first arc-shaped groove and the second arc-shaped groove, the second limiting plate is propped against the other side of the bearing, and the axial movement of the bearing is limited by the first limiting plate and the second limiting plate.
This application embodiment distributes the structure that restricts bearing axial displacement and radial displacement to support main part and shrouding, through the spacing space that the first arc wall of support main part and the second arc wall of shrouding formed jointly, restricts the radial displacement of bearing to through the first limiting plate with first arc wall integrated into one piece, and with shrouding integrated into one piece's second limiting plate support respectively in the both sides of bearing, with the axial displacement of restriction bearing. And the support main body and the sealing plate are integral parts, one end of the sealing plate and one end of the support main body can be assembled on line, and when the bearing is assembled on line, the other end of the sealing plate is connected with the other end of the support main body after the bearing is only required to be installed, so that the limit of the bearing can be completed
Therefore, the integral part formed by the bracket main body and the sealing plate can be used as a single part for part management, which is beneficial to part management and saves management cost; and during on-line assembly, the operation is convenient, the assembly process is 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 the diameter of the bearing.
The bearing of the embodiment of the application has an outer diameter of 55mm, and the diameter of the second arc-shaped groove is
55.7 to 57.3mm, preferably 56.5mm. After the bearing is assembled into the first arc-shaped groove, the sealing plate is connected with the support main body, and the sealing plate is pressed on the bearing through elastic deformation due to the fact that the diameter of the second arc-shaped groove is larger than that of the bearing, so that the limit space formed by the first arc-shaped groove and the second arc-shaped groove is matched with the bearing together, radial movement of the bearing is limited, and supporting of the driving half shaft is achieved.
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 sealing 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.
According to the embodiment of the application, the sealing plate is connected with the support main body through the pin shaft on line, so that the sealing plate is rotatably connected with the support main body.
In some embodiments, the first pin hole is in clearance fit with the pin shaft, and the clearance value is 0.3 mm-0.748 mm.
The first pin hole is in small clearance fit with the pin shaft, so that the pin shaft is conveniently inserted into the first pin hole, and the sealing plate is conveniently rotated, so that after the sealing plate is fixed with the support main body, the second limiting plate is smoothly abutted against one side of the bearing.
In some embodiments, the second pin hole is in interference fit with the pin shaft, and the interference is 0.005 mm-0.035 mm.
The second pin hole is in interference fit with the pin shaft so as to limit the axial movement of the sealing plate along 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 opening penetrating through the sealing plate, and the bracket main body is provided with a bolt hole;
the shrouding pass through the bolt with the support main part is connected, the bolt spiro union in the bolt installation breach with threaded hole.
The application steps of the limiting device for the driving half shaft bearing are as follows:
firstly, sub-packaging a sealing plate and a bracket main body on line, and rotationally connecting one end of the sealing plate and one end of the bracket main body through a pin shaft to form an integral part; then the integral part is connected with an engine or a motor; then placing the bearing in a first arc-shaped groove of the bracket main body, and enabling a first limiting plate to prop 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 body through a bolt, connecting the bolt in the bolt mounting notch and the threaded hole in a screwed mode, limiting the radial movement of the bearing by a limiting space formed by the first arc-shaped groove and the second arc-shaped groove at the moment, enabling the second limiting plate to abut against the other side of the bearing, and limiting the axial movement of the bearing by the first limiting plate and the second limiting plate.
In some embodiments, the bolt installation notch is in clearance fit with the bolt, and the clearance value is 0 mm-0.2 mm.
Because the assembly position between the bolt and the bolt installation notch has a certain error, the bolt installation notch and the bolt are in small clearance fit, and the bolt is in threaded connection in the bolt installation notch within the allowable error range.
In some embodiments, the diameter of the first arc-shaped groove is 0.009 mm-0.057 mm larger than the diameter of the bearing, and the diameter of the first limiting plate is 5.6-6.4 mm smaller than the diameter of the bearing.
The first limiting plate and the first arc-shaped groove form a step structure, and the first limiting plate extends to the side face of the bearing so as to realize axial limiting of the bearing.
In some embodiments, the second limiting plate is disposed obliquely in a direction away from the first limiting plate.
Because the shrouding is rotatory to pass through bolted connection with the support main part, in the second arc wall of shrouding is acceptd on the top of bearing, in order to prevent because assembly tolerance, lead to the bearing unable to acceptd in the second arc wall, the second limiting plate is set up towards the direction slope of keeping away from first limiting plate, has increased the acceptd area in second arc wall for the bearing can assemble smoothly in the second arc wall, and the second limiting plate supports to hold in the side of bearing, in order to realize the axial spacing to the bearing.
In some embodiments, the second limiting plate has an inclination angle of 3 degrees.
The inclination of the second limiting plate is not easy to be too large, and the second limiting plate cannot be propped against the side face of the bearing due to the fact that the second limiting plate is too large, and the effect of limiting the bearing in the axial direction cannot be achieved.
According to the embodiment of the application, the first arc-shaped groove is in clearance fit with the bearing, the clearance value is 0.009 mm-0.057 mm, the diameter of the second arc-shaped groove is 0.7-2.3 mm larger than that of the bearing, the first pin hole is in clearance fit with the pin shaft, and the clearance value is 0.3-0.748 mm, so that the sealing plate can be elastically deformed after being connected with the bracket main body through the bolt and is pressed on the bearing, the limit space formed by the first arc-shaped groove and the second arc-shaped groove together is matched with the bearing, the radial movement of the bearing is limited, and the supporting of the driving half shaft is realized.
According to the embodiment of the application, the second pin hole is in interference fit with the pin shaft, the interference is 0.005-0.035 mm, the bolt mounting opening is in clearance fit with the bolt, the clearance value is in design fit of 0-0.2 mm, the axial movement of the sealing plate can be limited, and the axial limiting of the bearing can be realized through the second limiting plate.
According to the embodiment of the application, through the design that the diameter of the first arc-shaped groove is 0.009 mm-0.057 mm larger than the diameter of the bearing, and the diameter of the first limiting plate is 5.6-6.4 mm smaller than the diameter of the bearing, axial limiting of the bearing is achieved.
According to the mounting structure, through the design that the second limiting plate is obliquely arranged in the direction away from the first limiting plate, the mounting operation of the sealing plate before the bearing limiting and fastening can be facilitated, and the convenience of assembly between the sealing plate and the bearing is guaranteed.
The beneficial effects that technical scheme that this application provided brought include: 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 during on-line assembly, the operation is convenient, the assembly process is 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 semi-axis bearing, because this application embodiment will restrict bearing axial displacement and radial movement's structure and distribute to support main part and shrouding, the spacing space that forms jointly through support main part's first arc wall and shrouding's second arc wall, limit bearing's radial movement to through with first arc wall integrated into one piece's first limiting plate, and with shrouding integrated into one piece's second limiting plate support respectively in the both sides of bearing, with the axial displacement of restriction bearing. The support main body and the sealing plate are integral parts, one end of the sealing plate and one end of the support main body can be assembled on line, and when the bearing is assembled on line, the other end of the sealing plate is connected with the other end of the support main body, so that the limit of the bearing can be completed; and during on-line assembly, the operation is convenient, the assembly process is 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 of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a related art stop device;
FIG. 2 is a schematic view of a limiting device for a driving axle shaft bearing according to an embodiment of the present disclosure;
fig. 3 is an assembly schematic diagram of a limiting device and a bearing according to an embodiment of the present disclosure;
fig. 4 is a schematic structural view of a sealing plate according to an embodiment of the present disclosure;
fig. 5 isbase:Sub>A schematic view of thebase:Sub>A-base:Sub>A direction of fig. 4.
In the figure: 1', a bearing; 2', a fixed bracket; 3', a limiting baffle; 4', bolts; 1. a holder main body; 10. a first arc-shaped groove; 11. a first limiting plate; 2. a sealing plate; 20. a second arc-shaped groove; 21. a second limiting plate; 22. a first pin hole; 23. a bolt mounting notch; 3. a bearing; 4. a limit space; 5. a pin shaft; 6. and (5) a bolt.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
Referring to fig. 1, in the related art, a limiting device of a bearing 1' includes a fixed bracket 2', a bearing hole is formed in the fixed bracket 2', the fixed bracket 2' is sleeved on an outer ring of the bearing 1' through the bearing hole, so as to realize radial limiting of the bearing, and for convenience in assembly, the fit between the bearing hole and an outer ring of the bearing is clearance fit; the fixed support 2 'is also internally provided with a stepped hole coaxial with the bearing hole, the stepped hole is propped against one side of the bearing 1', and the other side of the bearing 1 'is propped against by the limiting baffle 3', so that the axial limiting of the bearing 1 'is realized, wherein the limiting baffle 3' is connected to the fixed support 2 'through at least two bolts 4', and the limiting effect is exerted.
However, in the above-described solution, the assembly steps of the bearing 1' and the limiting device are: firstly, fixedly connecting a fixed support 2 'with an engine or a motor, penetrating a bearing 1' into a bearing hole of the fixed support 2', finally, installing a limiting baffle 3', and connecting the limiting baffle 3 'with the fixed support 2' through two bolts 4', so as to limit the bearing 1'. Therefore, the axial limit of the bearing 1' can be realized by the cooperation of the stepped hole, the limit baffle 3' and the two bolts 4', the limit baffle 3' and the fixed bracket 2' cannot be assembled in advance in a line to form a whole, the two can only be assembled in steps on line, and 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 present embodiment provides a limiting device for a driving axle bearing, as shown in fig. 2 and 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 slot 10 with an upward opening, and one side of the first arc-shaped slot 10 is protruded 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 of the sealing plate 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 of the second arc-shaped groove 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; when in use, the sealing plate 2 is connected with the bracket main body 1, the first arc-shaped groove 10 and the second arc-shaped groove 20 jointly form a limiting space 4 for limiting the radial movement of the bearing 3, the bearing 3 is positioned in the limiting space 4, and the first limiting plate 11 and the second limiting plate 21 respectively support against two sides of the bearing 3 so as to limit the axial movement of the bearing 3.
The application steps of the limiting device for the driving half shaft bearing are as follows:
firstly, sub-packaging the sealing plate 2 and the bracket main body 1 on line, and rotationally connecting one end of the sealing plate 2 with one end of the bracket main body 1 to form an integral part; then the integral part is connected 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 propped 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 bracket main body 1, at the moment, the limiting space 4 formed by the first arc-shaped groove 10 and the second arc-shaped groove 20 together limits the radial movement of the bearing 3, the second limiting plate 21 is abutted against 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 together.
The structure of limiting the axial movement and the radial movement of the bearing 3 is distributed to the support body 1 and the sealing plate 2, the radial movement of the bearing 3 is limited through a limiting space 4 formed by the first arc-shaped groove 10 of the support body 1 and the second arc-shaped groove 20 of the sealing plate 2, and the axial movement of the bearing 3 is limited through the first limiting plate 11 integrally formed with the first arc-shaped groove 10 and the second limiting plate 21 integrally formed with the sealing plate 2 respectively propped against two sides of the bearing 3. And the support main body 1 and the shrouding 2 are integral parts, and the one end of shrouding 2 and the one end of support main body 1 can assemble under on-line, and when assembling on-line, only need install bearing 3 after, be connected the other end of shrouding 2 and the other end of support main body 1, can accomplish the spacing of bearing 3.
Therefore, the integral part formed by the bracket main body 1 and the sealing plate 2 can be used as a single part for part management, which is beneficial to part management and saves management cost; and during on-line assembly, the operation is convenient, the assembly process is few, the whole weight of the limiting device is reduced, and the cost is lower.
Alternatively, 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 the diameter of the bearing 3.
The first arc-shaped groove 10 and the bearing 3 in the embodiment of the application are in small clearance fit, namely, the bearing 3 is conveniently assembled into the first arc-shaped groove 10, and the bearing 3 is not provided with a large allowance for movement.
The bearing 3 of the embodiment of the present application has an outer diameter of 55mm and the second arcuate groove 20 has a diameter of
55.7 to 57.3mm, preferably 56.5mm. After the bearing 3 is assembled into the first arc-shaped groove 10, in the process of connecting the sealing plate 2 with the bracket main body 1, as the diameter of the second arc-shaped groove 20 is larger than that of the bearing 3, the sealing plate 2 is pressed on the bearing 3 through elastic deformation, so that the adaptation of a limit space 4 formed by the first arc-shaped groove 10 and the second arc-shaped groove 20 together with the bearing 3 is realized, the radial movement of the bearing 3 is limited, and the support of a driving half shaft is realized.
Optionally, a first pin hole 22 penetrating through the sealing plate 2 is formed on the sealing plate 2, and a second pin hole penetrating through the bracket main body 1 is formed on the bracket main body 1; the sealing plate 2 is connected with the bracket 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.
According to the embodiment of the application, the sealing plate 2 is connected with the support body 1 through the pin shaft 5 on line, so that the rotatable connection of the sealing plate 2 and the support body 1 is realized.
Preferably, the first pin hole 22 is in clearance fit with the pin shaft 5, and the clearance value is 0.3 mm-0.748 mm.
The first pin hole 22 is in small clearance fit with the pin shaft 5, so that the pin shaft 5 is conveniently inserted into the first pin hole 22, and the sealing plate 2 is conveniently rotated, so that after the sealing plate 2 is fixed with the bracket main body 1, the second limiting plate 21 is smoothly abutted against one side of the bearing 3.
Preferably, the second pin hole is in interference fit with the pin shaft 5, and the interference is 0.005-0.035 mm.
The second pin hole is in interference fit with the pin shaft 5 so as to limit the axial movement of the sealing plate 2 along the pin shaft 5 and prevent the pin shaft 5 from moving in the second pin hole.
Optionally, as shown in fig. 2 and 3, 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 sealing plate 2 is connected with the bracket main body 1 through a bolt 6, and the bolt 6 is in threaded connection with a bolt mounting notch 23 and a threaded hole.
The application steps of the limiting device for the driving half shaft bearing are as follows:
firstly, sub-packaging the sealing plate 2 and the bracket main body 1 on line, and rotationally connecting one end of the sealing plate 2 and one end of the bracket main body 1 through a pin shaft 5 to form an integral part; then the integral part is connected 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 propped 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 bracket main body 1 through the bolt 6, the bolt 6 is in threaded connection with the bolt mounting notch 23 and the threaded hole, at the moment, the limit space 4 formed by the first arc-shaped groove 10 and the second arc-shaped groove 20 together limits the radial movement of the bearing 3, the second limit plate 21 is propped against the other side of the bearing 3, and the axial movement of the bearing 3 is limited by the first limit plate 11 and the second limit plate 21 together.
Preferably, the bolt installation notch 23 is in clearance fit with the bolt 6, and the clearance value is 0 mm-0.2 mm.
Because the assembly position between the bolt 6 and the bolt mounting notch 23 has a certain error, the bolt mounting notch 23 and the bolt 6 are in small clearance fit, and the bolt 6 is screwed in the bolt mounting notch 23 within the allowable error range.
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 limiting plate 11 is 5.6 to 6.4mm smaller than the diameter of the bearing 3.
The first limiting plate 11 and the first arc-shaped groove 10 form a stepped structure, and the first limiting plate 11 extends to the side surface of the bearing 3 so as to realize axial limiting of the bearing 3.
Alternatively, as shown in fig. 5, the second limiting plate 21 is disposed obliquely in a direction away from the first limiting plate 11.
Because the shrouding 2 rotates to be connected through bolt 6 with support main part 1, in the second arc wall 20 of shrouding 2 is acceptd on the top of bearing 3, in order to prevent because assembly tolerance leads to bearing 3 unable to acceptd in second arc wall 20, second limiting plate 21 is towards the direction slope setting of keeping away from first limiting plate 11, has increased the acceptd area of second arc wall 20 for bearing 3 can assemble smoothly in second arc wall 20, and second limiting plate 21 supports in the side of bearing 3, in order to realize the axial spacing to bearing 3.
Preferably, referring to fig. 5, the inclination angle α of the second limiting plate 21 is 3 degrees.
The inclination of the second limiting plate 21 is not easy to be too large, and the second limiting plate 21 cannot be abutted against the side face of the bearing 3 due to the too large inclination, so that the axial limiting effect of the bearing 3 cannot be achieved.
According to the embodiment of the application, the first arc-shaped groove 10 is in clearance fit with the bearing 3, the clearance value is 0.009-0.057 mm, the diameter of the second arc-shaped groove 20 is 0.7-2.3 mm larger than that of the bearing 3, the first pin hole 22 is in clearance fit with the pin shaft 5, the clearance value is 0.3-0.748 mm, and the sealing plate 2 is in design fit with the pin shaft 5, so that the sealing plate 2 can be pressed on the bearing 3 through elastic deformation after being connected with the bracket main body 1 through the bolts 6, and the limit space 4 formed by the first arc-shaped groove 10 and the second arc-shaped groove 20 is matched with the bearing 3 together, so that radial movement of the bearing 3 is limited, and supporting of a driving half shaft is realized.
According to the embodiment of the application, the second pin hole is in interference fit with the pin shaft 5, the interference is 0.005-0.035 mm, the bolt mounting notch 23 is in clearance fit with the bolt 6, the clearance value is 0-0.2 mm, the axial movement of the sealing plate 2 can be limited, and the axial limiting of the bearing 3 can be realized through the second limiting plate 21.
According to the embodiment of the application, through the design that the diameter of the first arc-shaped groove 10 is 0.009 mm-0.057 mm larger than the diameter of the bearing 3, and the diameter of the first limiting plate 11 is 5.6-6.4 mm smaller than the diameter of the bearing 3, the axial limiting of the bearing 3 is realized.
According to the embodiment of the application, through the design that the second limiting plate 21 is obliquely arranged in the direction away from the first limiting plate 11, the mounting operation of the sealing plate 2 before the bearing 3 is limited and fastened can be facilitated, and the convenience of assembly between the sealing plate 2 and the bearing 3 is guaranteed.
The beneficial effects that technical scheme that this application embodiment provided include:
and (3) a step of: the weight is reduced by more than 30 percent, and meanwhile, the material of the bracket main body 1 is reduced, so that the cost is reduced;
and II: the bracket main body 1 and the sealing plate 2 can be sub-packaged in a line and used as a single part for management, so that the management cost and the part cost are lower;
thirdly,: compared with the scheme in the related art, 2 bolts are required to be fastened in the radial direction, the operation space is limited (limited by the fact that the driving axle spindle is large, the interfaces of the electric drive axle are small, and the like), only 1 bolt is required to be fastened, and the operation angle is better and more convenient.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the 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.
Claims (9)
1. A stop device of drive axle bearing, characterized in that it includes:
the bracket comprises a bracket main body (1) which is provided with a first arc-shaped groove (10) with an upward opening, wherein one side of the first arc-shaped groove (10) is upwards convexly arranged along the circumferential direction of the first arc-shaped groove 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 of the sealing plate 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 of the second arc-shaped groove 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);
the utility model provides a sealing plate, including support main (1) and bearing (3), first pinhole (22) that run through this sealing plate (2) are offered on sealing plate (2), offer the second pinhole that runs through this support main (1) on support main (1), sealing plate (2) through round pin axle (5) with support main (1) are connected, round pin axle (5) run through in first pinhole (22) with in the second pinhole, earlier divide the sealing plate (2) with support main (1) under the line to rotate one end of sealing plate (2) and the one end of support main (1) through round pin axle (5) and be connected, form an integral part, during the use, sealing plate (2) with support main (1) can dismantle the connection, first arc wall (10) with second arc wall (20) jointly form spacing space (4) that are used for limiting bearing (3) radial movement, bearing (3) are located spacing space (4), just first limiting plate (11) with second limiting plate (21) respectively support in bearing (3) both sides in order to limit bearing (3).
2. The limiting device of the driving half shaft bearing 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 the diameter of the bearing (3).
3. The limiting device of the driving axle shaft bearing according to claim 1, wherein the first pin hole (22) is in clearance fit with the pin shaft (5), and the clearance value is 0.3 mm-0.748 mm.
4. The limiting device of the driving half shaft bearing according to claim 1, wherein the second pin hole is in interference fit with the pin shaft (5), and the interference is 0.005 mm-0.035 mm.
5. The drive axle bearing limit apparatus of 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 sealing 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 installation notch (23) and the threaded hole.
6. The limiting device of the driving axle shaft bearing according to claim 5, wherein the bolt installation notch (23) is in clearance fit with the bolt (6), and the clearance value is 0 mm-0.2 mm.
7. The limit device for the driving half shaft bearing according to claim 1, characterized in that the diameter of the first arc-shaped groove (10) is 0.09 mm-0.057 mm larger than the diameter of the bearing (3), and the diameter of the first limit plate (11) is 5.6-6.4 mm smaller than the diameter of the bearing (3).
8. The limit device for a drive axle bearing according to claim 1, characterized in that the second limit plate (21) is arranged obliquely in a direction away from the first limit plate (11).
9. The limit device for a drive axle bearing according to claim 8, characterized in that the inclination angle of the second limit plate (21) is 3 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145702.5A CN113682089B (en) | 2021-09-28 | 2021-09-28 | Limiting device for driving half shaft bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145702.5A CN113682089B (en) | 2021-09-28 | 2021-09-28 | Limiting device for driving half shaft bearing |
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| CN113682089A CN113682089A (en) | 2021-11-23 |
| CN113682089B true CN113682089B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111145702.5A Active CN113682089B (en) | 2021-09-28 | 2021-09-28 | Limiting device for driving half shaft bearing |
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| CN112211912A (en) * | 2020-09-17 | 2021-01-12 | 东风汽车集团有限公司 | Bearing limiting retainer ring |
| CN213322675U (en) * | 2020-07-10 | 2021-06-01 | 广州汽车集团股份有限公司 | Mounting structure and car of car drive shaft |
| CN214112181U (en) * | 2020-12-24 | 2021-09-03 | 恒大新能源汽车投资控股集团有限公司 | Spacing bearing structure, drive shaft, drive assembly and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5234271A (en) * | 1991-06-05 | 1993-08-10 | Ab Volvo, A Swedish Body Corporate | Shaft bearing, especially a wheel shaft bearing in a motor vehicle |
| FR2876630A1 (en) * | 2004-10-15 | 2006-04-21 | Renault Sas | Power train for motor vehicle, has monoblock clevis divided into two parts by breaking clevis in such manner that parts are accommodated with each other without any gap during mounting of center bearing in cylindrical bore of clevis |
| CN105128659A (en) * | 2015-08-28 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Transmission shaft middle supporting assembly |
| CN105235505A (en) * | 2015-10-15 | 2016-01-13 | 力帆实业(集团)股份有限公司 | Installation structure lowering vibration of vehicle transmission shafts |
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| Publication number | Publication date |
|---|---|
| CN113682089A (en) | 2021-11-23 |
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