A limiting and error-preventing assembly tool and method for a hydraulic torque converter damper

Abstract

The present application relates to a kind of shock absorbers, in particular to a kind of shock absorber of hydraulic torque converter limiting mistake-proof assembly tool and method, solve the technical problem that the phase angle of existing hydraulic torque converter shock absorber is difficult to guarantee the torsional characteristics of shock absorber when installation;The limiting mistake-proof assembly tool includes base and multiple pins;The base includes annular body and the limiting platform connected coaxially with annular body;Multiple through holes are uniformly distributed on annular body along circumference, and multiple recesses are uniformly distributed on the outer edge of annular body along circumference;Multiple recesses and multiple through holes are staggered along the same circumference;Limiting platform is used to be nested in first mounting hole to install and position annular body and front retainer;Pin is set in corresponding through hole, and pin is used to sequentially pass through corresponding through hole, first rivet hole, connect annular body with front retainer, and then determine the position of outer intermediate disc by recess and protrusion cooperation.The present application method can completely eliminate the occurrence of front retainer and outer intermediate disc installation error.

Description

Technical Field

[0001] This invention relates to a vibration damper, specifically to a limit and anti-misalignment assembly tooling and method for a hydraulic torque converter vibration damper. Background Technology

[0002] With increasingly fierce competition in the passenger vehicle market, vehicle design is paying more and more attention to passenger comfort. Existing torque conversion devices are generally installed between the power source and the transmission. By combining the coupling and transmission properties of fluid and blades, the driving force of the power source can be effectively transmitted to the transmission. This fluid torque conversion device is also known as a hydraulic torque converter. The hydraulic torque converter integrates a damper to suppress noise during vehicle driving. When the engine starts or stops, it absorbs the excitation torque of the engine, suppresses body vibration, and improves the smoothness of output and passenger ride comfort.

[0003] However, during the installation of existing hydraulic torque converter vibration dampers, the phase angle of the damper is prone to deviation, which leads to errors in the torsional characteristics of the damper, making it difficult to guarantee the torsional characteristics of the damper and failing to meet the design requirements. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problem that the phase angle of the damper of the existing hydraulic torque converter is difficult to guarantee the torsional characteristics of the damper during installation, and to provide a limiting and error-proof assembly tooling and method for the damper of the hydraulic torque converter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A limiting and error-proof assembly fixture for a hydraulic torque converter damper, the damper includes a front retainer, an intermediate plate, and a rear retainer sequentially sleeved on a turbine hub along the axial direction; the intermediate plate includes an inner intermediate plate and an outer intermediate plate coaxially arranged from the inside to the outside; the front retainer is used to connect with a cover wheel, and has a first mounting hole at its center and a plurality of first rivet holes evenly distributed around its edge; the rear retainer is used to connect with the turbine, and has a plurality of second rivet holes corresponding to the first rivet holes; the outer intermediate plate has a second mounting hole at its center, and a plurality of protrusions evenly distributed on its inner circumference;

[0007] Its special feature is that it includes a base and multiple pins;

[0008] The base includes a limiting platform coaxially connected to an annular body;

[0009] The outer diameter of the annular body is adapted to the second mounting hole, and multiple through holes are evenly distributed along the circumference of the annular body. Multiple grooves with the same number of through holes are evenly distributed along the circumference of the outer edge of the annular body. Multiple grooves and multiple through holes are staggered along the same circumference. Multiple grooves are adapted to multiple protrusions, and their positions correspond one-to-one. The positions of multiple through holes correspond one-to-one with multiple first rivet holes.

[0010] The outer diameter of the limiting table is matched with the inner diameter of the first mounting hole, and the limiting table is used for nesting in the first mounting hole to position the annular body and the front holder;

[0011] The pin is arranged in the corresponding through hole, and the pin is used for connecting the annular body and the front holder by sequentially penetrating the corresponding through hole and the first rivet hole, and determining the position of the outer intermediate disc through the groove and the protrusion.

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

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

[0014] Further, the number of the groove and the through hole is 5.

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

[0016] Further, the included angle between the two radial side walls of the groove is 15.9°;

[0017] The included angle between the side wall of the groove close to the through hole with the farthest distance of the adjacent two through holes and the radial center line of the through hole is in the range of 38°-40.1°.

[0018] Further, the thickness of the limiting table is the same as that of the front holder.

[0019] Meanwhile, the limiting and mistake-proof assembly method of the hydraulic torque converter damper is based on the limiting and mistake-proof assembly tool of the hydraulic torque converter damper, and the special feature is that it comprises the following steps:

[0020] 1】Install the pin in the through hole;

[0021] 2】Place the front holder on the platform, so that the pin is matched with the first rivet hole one by one, and then set the limiting table in the first mounting hole of the front holder;

[0022] 3】After the protrusion and the groove on the outer intermediate disc are matched one by one, set the outer intermediate disc on the annular body;

[0023] 4】After the positions of the front holder and the outer intermediate disc are determined, remove the annular body and the limiting table, connect the rear holder to the front holder and the outer intermediate disc through the holder rivet, and complete the installation of the front holder and the outer intermediate disc.

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

[0025] Further, in step 2】the limiting table and the front holder are located in the same plane.

[0026] Advantages of the present application:

[0027] 1. The limiting and error-proof assembly tool of the hydraulic torque converter damper ensures the installation phase angle of the damper, thereby reducing the product cost, and has an important influence on subsequent related process improvement and product performance improvement.

[0028] 2. The limiting and error-proof assembly tool of the hydraulic torque converter damper is convenient to operate, simple in structure, and has good popularization effect.

[0029] 3. The limiting and error-proof assembly tool of the hydraulic torque converter damper meets the use of specific products, and can be popularized to other models to ensure the correctness of the installation angle of the damper, and provides a reference idea and method for ensuring the correct installation of the damper.

[0030] 4. The limiting and error-proof assembly method of the hydraulic torque converter damper is simple to assemble, low in cost, and can completely eliminate the installation error of the front retainer and the outer intermediate disc in the damper. BRIEF DESCRIPTION OF DRAWINGS

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

[0032] Figure 2 is a structural schematic view of an embodiment of the limiting and error-proof assembly tool of the hydraulic torque converter damper of the present application;

[0033] Figure 3 is a sectional view of Figure 2 ;

[0034] Figure 4 is an assembly schematic view of the front retainer, the base, the pin and the outer intermediate disc in the embodiment of the limiting and error-proof assembly tool of the hydraulic torque converter damper of the present application;

[0035] Figure 5 is an exploded view of Figure 4 ;

[0036] Figure 6 is a front view of the assembly of the front retainer, the base and the pin in the embodiment of the limiting and error-proof assembly tool of the hydraulic torque converter damper of the present application;

[0037] Figure 7 is a structural schematic view of the outer intermediate disc in the hydraulic torque converter damper;

[0038] Figure 8 is a structural schematic view of the inner intermediate disc in the hydraulic torque converter damper.

[0039] Explanation of reference signs:

[0040] 1-base, 11-ring body, 12-limiting table, 13-groove, 14-through hole, 2-pin, 3-damper, 31-front holder, 311-first mounting hole, 32-rear holder, 33-outer ring spring, 34-outer intermediate disc, 341-second mounting hole, 342-protrusion, 35-inner intermediate disc, 36-inner ring spring, 37-turbine hub, 38-holder rivet, 39-turbine hub rivet. DETAILED DESCRIPTION

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

[0042] A first spring mounting hole and a second spring mounting hole are coaxially arranged in a radial direction from inside to outside at the periphery of the first mounting hole 311; a third spring mounting hole and a fourth spring mounting hole are coaxially arranged in a radial direction from inside to outside on the rear holder 32 in positions corresponding to the first spring mounting hole and the second spring mounting hole; a fifth spring mounting hole is arranged on the inner intermediate disc 35 in a position corresponding to the first spring mounting hole; and a sixth spring mounting hole is arranged on the outer intermediate disc 34 in a position corresponding to the second spring mounting hole; the first spring mounting hole, the third spring mounting hole and the fifth spring mounting hole form a first spring window in an axial direction, and the first spring window is used to mount an inner ring spring 36; the second spring mounting hole, the fourth spring mounting hole and the sixth spring mounting hole form a second spring window in an axial direction, and the second spring window is used to mount an outer ring spring 33.

[0043] The front holder 31, the outer intermediate disc 34 and the rear holder 32 are riveted together through the first rivet hole and the second rivet hole by a holder 38; and the turbine hub 37 and the inner intermediate disc 35 are riveted together by a turbine hub rivet 39.

[0044] As shown in Figure 2 , Figure 3As shown in the figure, a kind of limit error-proof assembly tooling of hydraulic torque converter damper, including base 1 and multiple pins 2;Base 1 includes annular body 11 and the limit platform 12 coaxially connected with annular body 11;The outer diameter of annular body 11 is adapted to the second mounting hole 341, and multiple through holes 14 are uniformly distributed on it along the circumference, the outer edge of annular body 11 is uniformly distributed with multiple grooves 13 consistent with the number of through holes 14 along the circumference;Multiple grooves 13 and multiple through holes 14 are staggered along the same circumference;The position of multiple grooves 13 is adapted to multiple protrusions 342, and the position is one-to-one corresponding;The position of multiple through holes 14 is one-to-one corresponding with multiple first rivet holes;The outer diameter of limit platform 12 is adapted to the inner diameter of first mounting hole 311, and limit platform 12 is used to nest in first mounting hole 311 to install and position annular body 11 and front retainer 31;Pin 2 is arranged in corresponding through hole 14, and pin 2 is used to connect annular body 11 and front retainer 31 by passing through corresponding through hole 14, first rivet hole in turn, and then determine the position of outer intermediate disc 34 by cooperating with groove 13 and protrusion 342.

[0045] In the embodiment, the thickness of limit platform 12 is the same as that of front retainer 31;Through hole 14 is a stepped hole, and the large end of the through hole is arranged away from front retainer 31;Pin 2 is a stepped shaft adapted to the stepped hole, used for positioning with front retainer 31.The diameter of annular body 11 is 200mm, and the diameter of limit platform 12 is 71mm;The number of grooves 13 and through holes 14 is 5;The inner diameter of the large end of through hole 14 is 6.5mm;Pin 2 is in interference fit with corresponding through hole 14, so that the installation of pin 2 is more secure.

[0046] In order to adapt to protrusion 342, the included angle between the two radial side walls of groove 13 is 15.9°, so as to avoid too large gap between protrusion 342 and the inner wall of groove 13, which leads to rotation of outer intermediate disc 34;The included angle between the side wall of groove 13 close to the through hole 14 with the farthest distance between the two adjacent through holes 14 and the radial center line of the through hole 14 is in the range of 39.8°, which is less than the torsion angle of damper 3, such as Figure 4 As shown in the figure, the included angle between the center line of through hole 14 and the side wall of two-stage spring window close to the through hole 14 is 29.4°, and the included angle between the edge of the through hole 14 and the limiting edge of damper 3 is 40.1° (i.e. the rotation angle of outer intermediate disc 34), therefore, first, the position of second spring mounting hole and sixth spring mounting hole can be guaranteed;Second, too small tooling angle will lead to relative rotation of front retainer 31 and outer intermediate disc 34, so that damper 3 cannot meet the design angle;Third, it makes outer intermediate disc 34 can be easily and correctly installed on front retainer 31.

[0047] The application discloses a limiting and mistake-preventing assembly tool for a hydraulic torque converter damper, which can ensure that the damper is installed in a corresponding position, thereby ensuring the reliability of a product and having an important influence on subsequent related process improvement and product performance improvement.

[0048] As shown in Figure 4 , Figure 5 , the application discloses a limiting and mistake-preventing assembly method for a hydraulic torque converter damper, which is based on the limiting and mistake-preventing assembly tool for the hydraulic torque converter damper, and is characterized in that the method comprises the following steps.

[0049] 1】The pin 2 is installed in the through hole 14, so that the annular body 11 is in interference fit with the pin 2; for the hydraulic torque converter damper 3 with a torsion angle of 40.1° of the damper 3, the included angle between the side wall of the groove 13 and the radial center line of the through hole 14 is 39.8°.

[0050] 2】As shown in Figure 6 , the front retainer 31 is placed on the platform, the pin 2 is matched with the first rivet hole one by one, then the limiting table 12 is sleeved in the first installation hole 311 of the front retainer 31, so that the limiting table 12 and the front retainer 31 are located in the same plane.

[0051] 3】The protrusion 342 on the outer intermediate disc 34 is matched with the groove 13 one by one, and then the outer intermediate disc 34 is sleeved on the annular body 11; in the embodiment, the included angle between the center line of the through hole 14 and the side wall of the second spring window close to the through hole 14 is 29.4°, which can ensure the torsion angle of the damper 3, and otherwise, the phase angle is dislocated, and the installation will cause the retainer rivet 38 to be unable to be inserted into the first rivet hole.

[0052] 4】After the positions of the front retainer 31 and the outer intermediate disc 34 are determined, the annular body 11 and the limiting table 12 are removed, the rear retainer 32 is connected with the front retainer 31 and the outer intermediate disc 34 through the retainer rivet 38, and after the installation of the front retainer 31 and the outer intermediate disc 34 is completed, the inner intermediate disc 35 is installed on the turbine hub 37 together.

[0053] The limiting and mistake-preventing assembly method for the hydraulic torque converter damper can reduce product manufacturing cost on the basis of meeting installation requirements, ensure product design requirements, avoid the phenomenon that the phase angle is wrong in the existing damper installation process, and thus cause the problem of machine failure. The stepped hole on the pin 2 and the annular body 11 is in interference fit and is used in a matched mode, is convenient to use, saves human errors, and can be popularized to other damper installation processes and is very efficient to use.

Claims

1. A limiting anti-misassembly tool for a hydraulic torque converter damper, the damper (3) comprising a front cage (31), an intermediate disc and a rear cage (32) which are sequentially sleeved on a turbine hub (37) in an axial direction; the intermediate disc comprises an inner intermediate disc (35) and an outer intermediate disc (34) which are coaxially arranged in sequence from inside to outside; the front cage (31) is used for connecting with a cover wheel, and a center thereof is provided with a first mounting hole (311), and an edge thereof is provided with a plurality of first rivet holes which are uniformly distributed in a circumferential direction; the rear cage (32) is used for connecting with a turbine, and is provided with a plurality of second rivet holes which correspond to the first rivet holes; and a center of the outer intermediate disc (34) is provided with a second mounting hole (341), and an inner circumferential surface of the second mounting hole (341) is uniformly provided with a plurality of protrusions (342) ; characterized in that the limiting anti-misassembly tool comprises a base (1) and a plurality of pins (2) ; the base (1) comprises an annular body (11) and a limiting table (12) which is coaxially connected to the annular body (11) ; an outer diameter of the annular body (11) is matched with the second mounting hole (341), a plurality of through holes (14) are uniformly distributed in a circumferential direction on the annular body (11), an outer edge of the annular body (11) is uniformly provided with a plurality of grooves (13) which are consistent in number with the through holes (14) in the circumferential direction; the plurality of grooves (13) and the plurality of through holes (14) are alternately arranged along the same circumferential direction; the plurality of grooves (13) are matched with the plurality of protrusions (342), and positions of the plurality of grooves (13) correspond to positions of the plurality of protrusions (342) one by one; and positions of the plurality of through holes (14) correspond to positions of the plurality of first rivet holes one by one; an outer diameter of the limiting table (12) is matched with an inner diameter of the first mounting hole (311), and the limiting table (12) is used for embedding in the first mounting hole (311) to position the annular body (11) and the front cage (31) ; the pin (2) is arranged in the corresponding through hole (14), and the pin (2) is used for sequentially penetrating through the corresponding through hole (14) and the first rivet hole to connect the annular body (11) and the front cage (31), and then determining the position of the outer intermediate disc (34) by cooperating the groove (13) with the protrusion (342). 2.The limiting anti-misassembly tool according to claim 1, wherein: the through hole (14) is a stepped hole, and a large end of the through hole (14) is arranged away from the front cage (31) ; and the pin (2) is a stepped shaft which is matched with the stepped hole. 3.The limiting anti-misassembly tool according to claim 2, wherein: the number of the through holes (14) and the number of the grooves (13) are both 5. 4.The limiting anti-misassembly tool according to claim 1 or 2 or 3, wherein: the pin (2) is in interference fit with the corresponding through hole (14). 5.The limiting anti-misassembly tool according to claim 4, wherein: an included angle between two radial side walls of the groove (13) is 15.9°; and an included angle between a side wall of the groove (13) which is close to a through hole (14) that is farthest away from the two adjacent through holes and a center line of the through hole (14) in a radial direction is in a range of 38°-40.1°. ​ ​ ​ ​ ​ ​ 6. The limiting and error-preventing assembly tool for a hydraulic torque converter damper according to claim 5, characterized in that: the limiting platform (12) has the same thickness as the front retainer (31).

7. A method for preventing incorrect assembly of a hydraulic torque converter damper, based on the tooling for preventing incorrect assembly of a hydraulic torque converter damper according to any one of claims 1-6, characterized in that, comprising the following steps: 1) installing the pin (2) into the through hole (14); 2) placing the front retainer (31) on the platform so that the pin (2) is in one-to-one correspondence with the first rivet hole, and then sleeving the limiting platform (12) into the first installation hole (311) of the front retainer (31); 3) sleeving the outer intermediate disc (34) onto the annular body (11) after the protrusion (342) on the outer intermediate disc (34) is in one-to-one correspondence with the groove (13); 4) after the positions of the front retainer (31) and the outer intermediate disc (34) are determined, removing the annular body (11) and the limiting platform (12), and connecting the rear retainer (32) to the front retainer (31) and the outer intermediate disc (34) through the retainer rivet (38), thereby completing the installation of the front retainer (31) and the outer intermediate disc (34).

8. The limiting and error-preventing assembly method for a hydraulic torque converter damper according to claim 7, characterized in that: in step 1), the annular body (11) is in interference fit with the pin (2).

9. The limiting and error-preventing assembly method for a hydraulic torque converter damper according to claim 8, characterized in that: in step 2), the limiting platform (12) and the front retainer (31) are located in the same plane.

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