Limiting mistake-proofing assembly tool and method for hydraulic torque converter shock absorber

Abstract

The invention relates to a shock absorber, in particular to a limiting mistake-proofing assembly tool and method for a shock absorber of a hydraulic torque converter, and solves the technical problem that when the shock absorber of an existing hydraulic torque converter is installed, the phase angle of the shock absorber is difficult to guarantee the torsion characteristic of the shock absorber. The limiting mistake-proof assembly tool comprises a base and a plurality of pins. The base comprises an annular body and a limiting table coaxially connected with the annular body. A plurality of through holes are evenly distributed in the annular body along the circumference, and a plurality of grooves are evenly distributed in the edge of the outer side of the annular body along the circumference. The plurality of grooves and the plurality of through holes are staggered along the same circumference; the limiting table is used for being nested in the first mounting hole to mount and position the annular body and the front retainer; the pins are arranged in the corresponding through holes and used for sequentially penetrating through the corresponding through holes and the first rivet holes to connect the annular body with the front retainer, and then the position of the outer middle disc is determined through cooperation of the grooves and the protrusions. By means of the method, installation errors of the front retainer and the outer middle disc can be completely eradicated.

Description

Technical Field

[0001] The invention relates to a shock absorber, and in particular to a position limiting and error-proof assembly tool and method for a hydraulic torque converter shock absorber. Background Art

[0002] As competition in the passenger car market becomes increasingly fierce, the design of the entire vehicle pays more and more attention to passenger comfort. The existing torque conversion device is generally installed between the power source and the gearbox. Combined with the coupling transmission of the fluid and the blades, the driving force of the power source can be effectively transmitted to the gearbox. This liquid torque conversion device is also called a torque converter, and a shock absorber is integrated in the torque converter to suppress noise during vehicle driving. When the engine starts or stops, it absorbs the engine's exciting torque, suppresses body vibration, and improves output stability and passenger comfort.

[0003] However, when the shock absorber of the existing torque converter is installed, its phase angle is prone to deviation, which leads to errors in the torsional characteristics of the shock absorber, making it difficult to ensure the torsional characteristics of the shock absorber and unable to meet the design requirements. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problem that the phase angle of the existing torque converter shock absorber is difficult to ensure the torsional characteristics of the shock absorber during installation, and to provide a limit error-proof assembly tool and method for the torque converter shock absorber.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A limit position error prevention assembly tool for a torque converter shock absorber, the shock absorber comprises a front retainer, an intermediate disk and a rear retainer which are sequentially sleeved on a turbine hub along the axial direction; the intermediate disk comprises an inner intermediate disk and an outer intermediate disk which are sequentially coaxially arranged from the inside to the outside; the front retainer is used to connect with a cover wheel, a first mounting hole is arranged at the center thereof, and a plurality of first rivet holes uniformly distributed on the circumference are arranged at the edge thereof; the rear retainer is used to connect with a turbine, a plurality of second rivet holes corresponding to the first rivet holes are arranged on the rear retainer; a second mounting hole is arranged at the center of the outer intermediate disk, and a plurality of protrusions are uniformly arranged on the inner circumference thereof;

[0007] The special features thereof are: comprising a base and a plurality of pins;

[0008] The base includes an annular body and a limit platform coaxially connected to the annular body;

[0009] The outer diameter of the annular body is matched with the second mounting hole, and a plurality of through holes are evenly distributed along the circumference thereof; a plurality of grooves having the same number as the through holes are evenly distributed along the circumference of the outer edge of the annular body; the plurality of grooves and the plurality of through holes are staggered along the same circumference; the plurality of grooves are matched with the plurality of protrusions, and the positions thereof correspond one to one; the positions of the plurality of through holes correspond one to one with the plurality of first rivet holes;

[0010] The outer diameter of the limiting platform is matched with the inner diameter of the first mounting hole, and the limiting platform is used to be nested in the first mounting hole to install and position the annular body and the front retaining frame;

[0011] The pin is arranged in the corresponding through hole, and is used to sequentially pass through the corresponding through hole and the first rivet hole to connect the annular body with the front retaining frame, and then determine the position of the outer middle plate through the cooperation of the groove and the protrusion.

[0012] Further, the through hole is a stepped hole, and its large end is arranged away from the front retainer;

[0013] The pin is a stepped shaft matched with the stepped hole.

[0014] Furthermore, the number of the grooves and the number of the through holes are both 5.

[0015] Furthermore, the pin is interference fit with the corresponding through hole.

[0016] Furthermore, the angle between the two side walls of the groove along the radial direction is 15.9°;

[0017] The angle between the side wall of the groove close to the through hole which is farther away from the two adjacent through holes and the center line of the through hole in the radial direction is in the range of 38°-40.1°.

[0018] Furthermore, the limiting platform has the same thickness as the front retaining frame.

[0019] At the same time, a method for preventing errors in the position limiting assembly of a torque converter shock absorber according to the present invention is based on the above-mentioned tool for preventing errors in the position limiting assembly of a torque converter shock absorber, and its special feature is that it includes the following steps:

[0020] 1] Install the pin into the through hole;

[0021] 2] Place the front retainer on the platform, make the pins match the first rivet holes one by one, and then put the limit platform into the first mounting hole of the front retainer;

[0022] 3] After the protrusions and grooves on the outer intermediate disk are aligned one by one, the outer intermediate disk is sleeved on the annular body;

[0023] 4] After determining the positions of the front cage and the outer middle plate, remove the annular body and the limit table, connect the rear cage to the front cage and the outer middle plate through the cage rivets, and complete the installation of the front cage and the outer middle plate.

[0024] Furthermore, in step 1], the annular body and the pin are interference fit.

[0025] Furthermore, in step 2], the limit platform and the front retaining frame are located in the same plane.

[0026] Beneficial effects of the present invention:

[0027] 1. The invention provides a limit error-proof assembly tool for a torque converter shock absorber, which ensures the installation phase angle of the shock absorber, thereby reducing product costs and having an important impact on subsequent related process improvements and product performance enhancements.

[0028] 2. The position limiting and error-proof assembly tool for a torque converter shock absorber of the present invention is easy to operate, simple in structure, and has a good promotion effect.

[0029] 3. The limit-limiting and anti-error assembly tool for the torque converter shock absorber of the present invention can not only meet the use of specific products, but also be extended to other models to ensure the correctness of the shock absorber installation angle, and at the same time provide a reference idea and method for ensuring the correct installation of the shock absorber.

[0030] 4. The invention provides a method for preventing errors in the limited position assembly of a torque converter shock absorber, which is simple to assemble and low in cost, and can completely prevent the occurrence of installation errors between the front retainer and the outer middle plate in the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of a torque converter damper;

[0032] Figure 2 It is a structural schematic diagram of an embodiment of a limit error prevention assembly tool for a torque converter damper of the present invention;

[0033] Figure 3 yes Figure 2 A cross-sectional view of

[0034] Figure 4 It is a schematic assembly diagram of a front retainer, a base, a pin and an outer middle plate in an embodiment of a limit error prevention assembly tool for a torque converter damper of the present invention;

[0035] Figure 5 yes Figure 4 Exploded diagram of

[0036] Figure 6 It is a front schematic diagram of the assembly of a front retainer, a base and a pin in an embodiment of a limit error prevention assembly tool for a torque converter damper of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the outer and middle plates of a torque converter shock absorber;

[0038] Figure 8 The present invention is a schematic diagram of the structure of an inner intermediate disk in a torque converter damper.

[0039] Description of reference numerals:

[0040] 1-base, 11-annular body, 12-limiting platform, 13-groove, 14-through hole, 2-pin, 3-shock absorber, 31-front retainer, 311-first mounting hole, 32-rear retainer, 33-outer ring spring, 34-outer middle disk, 341-second mounting hole, 342-protrusion, 35-inner middle disk, 36-inner ring spring, 37-turbine hub, 38-retainer rivet, 39-turbine hub rivet. DETAILED DESCRIPTION

[0041] like Figure 1 , Figure 7 , Figure 8 As shown, a torque converter damper 3 comprises a front retainer 31, an intermediate plate and a rear retainer 32 which are sequentially sleeved on a turbine hub 37 along the axial direction; the intermediate plate comprises an inner intermediate plate 35 and an outer intermediate plate 34 which are sequentially coaxially arranged from the inside to the outside; the front retainer 31 is used to connect with the cover wheel, and a first mounting hole 311 is arranged at the center thereof, and a plurality of first rivet holes uniformly distributed around the circumference are arranged at the edge thereof; the rear retainer 32 is used to connect with the turbine, and a plurality of second rivet holes corresponding to the first rivet holes are arranged thereon; a second mounting hole 341 is arranged at the center of the outer intermediate plate 34, and a plurality of protrusions 342 are uniformly arranged on the inner circumference thereof.

[0042] The first mounting hole 311 is coaxially arranged with a first spring mounting hole and a second spring mounting hole in sequence from inside to outside in the radial direction on the periphery; the third spring mounting hole and the fourth spring mounting hole corresponding to the positions of the first spring mounting hole and the second spring mounting hole are coaxially arranged on the rear retaining frame 32 in sequence from inside to outside in the radial direction; a fifth spring mounting hole is arranged at a position corresponding to the first spring mounting hole on the inner intermediate disk 35; a sixth spring mounting hole is arranged at a position corresponding to the second spring mounting hole on the outer intermediate disk 34; the first spring mounting hole, the third spring mounting hole and the fifth spring mounting hole form a primary spring window along the axial direction, and the primary spring window is used to install the inner ring spring 36; the second spring mounting hole, the fourth spring mounting hole and the sixth spring mounting hole form a secondary spring window along the axial direction, and the secondary spring window is used to install the outer ring spring 33.

[0043] The front retaining frame 31 , the outer intermediate disk 34 and the rear retaining frame 32 are riveted together through the retaining frame 38 passing through the first rivet hole and the second rivet hole; the turbine hub 37 and the inner intermediate disk 35 are riveted together through the turbine hub rivets 39 .

[0044] like Figure 2 , Figure 3As shown, a limit error prevention assembly tool for a torque converter shock absorber includes a base 1 and a plurality of pins 2; the base 1 includes an annular body 11 and a limit platform 12 coaxially connected to the annular body 11; the outer diameter of the annular body 11 is adapted to the second mounting hole 341, and a plurality of through holes 14 are evenly distributed along the circumference thereof, and a plurality of grooves 13 with the same number of through holes 14 are evenly distributed along the circumference of the outer edge of the annular body 11; the plurality of grooves 13 and the plurality of through holes 14 are staggered along the same circumference; the positions of the plurality of grooves 13 are aligned with the plurality of protrusions 342 The positions of the plurality of through holes 14 correspond one to one with the plurality of first rivet holes; the outer diameter of the limit platform 12 matches the inner diameter of the first mounting hole 311, and the limit platform 12 is used to be nested in the first mounting hole 311 to install and position the annular body 11 and the front retaining frame 31; the pin 2 is arranged in the corresponding through hole 14, and the pin 2 is used to sequentially pass through the corresponding through hole 14 and the first rivet hole to connect the annular body 11 with the front retaining frame 31, and then the position of the outer intermediate disk 34 is determined by the groove 13 and the protrusion 342.

[0045] In this embodiment, the limiting platform 12 has the same thickness as the front retainer 31; the through hole 14 is a stepped hole, and its large end is set away from the front retainer 31; the pin 2 is a stepped shaft matched with the stepped hole, which is used to position with the front retainer 31. The diameter of the annular body 11 is 200mm, and the diameter of the limiting platform 12 is 71mm; the number of the grooves 13 and the through hole 14 is 5; the inner diameter of the large end of the through hole 14 is 6.5mm; the pin 2 is interference fit with the corresponding through hole 14, so that the pin 2 is installed more securely.

[0046] In order to match with the protrusion 342, the angle between the two radial side walls of the groove 13 is 15.9°, so as to avoid the gap between the protrusion 342 and the inner wall of the groove 13 being too large, causing the outer intermediate disk 34 to rotate; the angle between the side wall of the through hole 14 of the groove 13 close to the farther through hole 14 of the two adjacent through holes 14 and the radial center line of the through hole 14 is 39.8°, which is smaller than the torsion angle of the shock absorber 3. Figure 4 As shown, the angle between the center line of the through hole 14 and the side wall of the secondary spring window close to the through hole 14 is 29.4°, and the angle between the edge of the through hole 14 and the limiting edge of the shock absorber 3 is 40.1° (i.e., the rotation angle of the outer middle plate 34). Therefore, firstly, it can be ensured that the second spring mounting hole and the sixth spring mounting hole are relative to each other; secondly, too small a tooling angle will cause relative rotation between the front retaining frame 31 and the outer middle plate 34, so that the shock absorber 3 cannot meet the design angle; thirdly, the outer middle plate 34 can be easily and correctly installed on the front retaining frame 31.

[0047] The invention provides a limit error-proof assembly tool for a torque converter shock absorber, which can ensure that the shock absorber 3 is installed at a corresponding position, thereby ensuring the reliability of the product, and has an important impact on subsequent related process improvements and product performance enhancements.

[0048] like Figure 4 , Figure 5 As shown, a method for preventing misalignment and limiting assembly of a torque converter shock absorber according to the present invention is based on the above-mentioned tooling for preventing misalignment and limiting assembly of a torque converter shock absorber, and its special feature is that it includes the following steps:

[0049] 1] Install the pin 2 in the through hole 14 so that the annular body 11 and the pin 2 are interference fit; for a torque converter shock absorber 3 with a torsion angle of 40.1°, the angle between the side wall of the groove 13 and the center line of the through hole 14 along the radial direction is 39.8°;

[0050] 2] If Figure 6 As shown, the front retainer 31 is placed on the platform so that the pins 2 are matched with the first rivet holes one by one, and then the limiting platform 12 is sleeved into the first mounting hole 311 of the front retainer 31 so that the limiting platform 12 and the front retainer 31 are kept in the same plane;

[0051] 3] After the protrusions 342 on the outer intermediate disk 34 correspond to the grooves 13 one by one, the outer intermediate disk 34 is sleeved on the annular body 11; in this embodiment, after installation, the angle between the center line of the through hole 14 and the side wall of the secondary spring window close to the through hole 14 is 29.4°, which can ensure the torsion angle of the shock absorber 3. Otherwise, if the phase angle is misaligned, the retainer rivet 38 cannot be inserted into the first rivet hole during installation;

[0052] 4] After determining the positions of the front retainer 31 and the outer middle disk 34, remove the annular body 11 and the limit platform 12, connect the rear retainer 32 to the front retainer 31 and the outer middle disk 34 through the retainer rivets 38, and after completing the installation of the front retainer 31 and the outer middle disk 34, install them together with the inner middle disk 35 on the turbine hub 37.

[0053] The limit error prevention assembly method of the torque converter shock absorber of the present invention reduces the product manufacturing cost on the basis of meeting the installation requirements, ensures the product design requirements, and avoids the phenomenon of phase angle error in the installation process of the existing shock absorber 3, thereby causing the problem of whole machine failure. Among them, the pin 2 and the step hole on the annular body 11 adopt interference fit, which is used in conjunction, is easy to use, saves human errors, and can be extended to other shock absorber 3 installation processes, and is very efficient.

Claims

1. A limit position and error prevention assembly tool for a torque converter shock absorber, the shock absorber (3) comprising a front retainer (31), an intermediate disk and a rear retainer (32) which are sequentially sleeved on a turbine hub (37) along the axial direction; the intermediate disk comprises an inner intermediate disk (35) and an outer intermediate disk (34) which are sequentially coaxially arranged from the inside to the outside; the front retainer (31) is used to connect with a cover wheel, a first mounting hole (311) is arranged at the center thereof, and a plurality of first rivet holes evenly distributed around the circumference are arranged at the edge thereof; the rear retainer (32) is used to connect with a turbine, a plurality of second rivet holes corresponding to the first rivet holes are arranged thereon; a second mounting hole (341) is arranged at the center of the outer intermediate disk (34), and a plurality of protrusions (342) are evenly arranged on the inner circumference thereof; Features: It comprises a base (1) and a plurality of pins (2); The base (1) comprises an annular body (11) and a limiting platform (12) coaxially connected to the annular body (11); The outer diameter of the annular body (11) is matched with the second mounting hole (341), and a plurality of through holes (14) are evenly distributed along the circumference thereof; a plurality of grooves (13) whose number is the same as the through holes (14) are evenly distributed along the circumference of the outer edge of the annular body (11); the plurality of grooves (13) and the plurality of through holes (14) are staggered along the same circumference; the plurality of grooves (13) are matched with the plurality of protrusions (342), and their positions correspond one to one; the positions of the plurality of through holes (14) correspond one to one with the plurality of first rivet holes; The outer diameter of the limiting platform (12) is matched with the inner diameter of the first mounting hole (311), and the limiting platform (12) is used to be nested in the first mounting hole (311) to install and position the annular body (11) and the front retaining frame (31); The pin (2) is arranged in the corresponding through hole (14). The pin (2) is used to sequentially pass through the corresponding through hole (14) and the first rivet hole to connect the annular body (11) with the front retaining frame (31), and then determine the position of the outer intermediate disk (34) through the cooperation of the groove (13) and the protrusion (342).

2. The position limiting and error-proofing assembly tool for a torque converter damper according to claim 1, characterized in that: The through hole (14) is a stepped hole, and its large end is arranged away from the front retaining frame (31); The pin (2) is a stepped shaft matched with the stepped hole.

3. The position limiting and error-proofing assembly tool for a torque converter damper according to claim 2, characterized in that: The number of the grooves (13) and the number of the through holes (14) are both five.

4. A limit position and error prevention assembly tool for a torque converter damper according to claim 1, 2 or 3, characterized in that: The pin (2) is interference fit with the corresponding through hole (14).

5. The position limiting and error-proofing assembly tool for a torque converter damper according to claim 4, characterized in that: The angle between the two radial side walls of the groove (13) is 15.9°; The angle between the side wall of the groove (13) close to the through hole (14) which is farther away from the two adjacent through holes and the radial center line of the through hole (14) is in the range of 38°-40.1°.

6. The position limiting and error-proofing assembly tool for a torque converter damper according to claim 5, characterized in that: The limiting platform (12) has the same thickness as the front retaining frame (31).

7. A method for preventing errors in the limited position assembly of a torque converter shock absorber, based on the tool for preventing errors in the limited position assembly of a torque converter shock absorber according to any one of claims 1 to 6, characterized in that: The following steps are involved: 1] Install the pin (2) into the through hole (14); 2] Place the front retaining frame (31) on the platform so that the pins (2) are matched with the first rivet holes one by one, and then the limiting platform (12) is sleeved into the first mounting hole (311) of the front retaining frame (31); 3] After the protrusions (342) on the outer intermediate disk (34) and the grooves (13) are aligned one by one, the outer intermediate disk (34) is sleeved on the annular body (11); 4] After determining the positions of the front retainer (31) and the outer intermediate disk (34), remove the annular body (11) and the limiting platform (12), connect the rear retainer (32) to the front retainer (31) and the outer intermediate disk (34) through the retainer rivets (38), and complete the installation of the front retainer (31) and the outer intermediate disk (34).

8. The method for preventing errors in the limited position assembly of a torque converter damper according to claim 7, characterized in that: In step 1], the annular body (11) and the pin (2) are interference fit.

9. A method for preventing errors in the limited position assembly of a torque converter damper according to claim 8, characterized in that: In step 2], the limiting platform (12) and the front retaining frame (31) are located in the same plane.

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