A hydrodynamic torque converter, auxiliary tool and assembly method

Abstract

The application discloses a kind of hydraulic torque converter, auxiliary tool and assembly method, belong to the field of transmission, including the hydraulic torque converter cover wheel, hydraulic torque converter spline board, friction plate back plate and hydraulic torque converter pump wheel that are sequentially fixedly connected;The bottom end of the hydraulic torque converter pump wheel is fixedly connected with driving teeth, and the hydraulic torque converter cover wheel, hydraulic torque converter spline board, friction plate back plate, hydraulic torque converter pump wheel and driving teeth form a first cavity, and a coaxial hydraulic torque converter locking disc, turbine hub and guide wheel seat are sequentially arranged at the center of the first cavity;In the assembly method, the hydraulic torque converter assembly does not need to be reversed, which avoids the large safety hazard caused by the large weight and volume of the torque converter itself during tooling and turning, and improves the assembly efficiency during assembly, ensures the consistency of the assembly method, and further ensures the consistency of the hydraulic transmission assembly.

Description

Technical Field

[0001] This invention belongs to the field of transmissions and relates to assembly methods, specifically a hydraulic torque converter, auxiliary tooling, and assembly method. Background Technology

[0002] The torque converter is a crucial component of a hydraulic automatic transmission. Its function is to transmit the engine's output torque through its driving element to its driven element via specialized hydraulic transmission fluid, and finally to the transmission itself. During this torque transmission process, the torque converter can achieve stepless changes in speed and torque within a certain range, ensuring normal vehicle operation under various driving conditions. Furthermore, thanks to the torque converter, the engine does not need to be turned off when the driver depresses the brake pedal. In this situation, engine power remains uninterrupted while the vehicle remains stationary, making driving more convenient and safer.

[0003] The main internal components of a hydraulic torque converter are a pump impeller, a stator, and a turbine. The turbine acts as the active element, connected to the engine output, while the other acts as the driven element, connected to the transmission input. The application of hydraulic torque converters reduces the impact and vibration of vehicle power transmission and extends the service life of related components. Especially in the commercial vehicle sector, the presence of hydraulic torque converters greatly improves driving safety and comfort.

[0004] Because the torque converter is an assembly component, it needs to be connected and assembled with other parts of the hydraulic automatic transmission as a whole during installation. On-site operators cannot visually inspect the internal structure of the hydraulic automatic transmission and must rely on experience and intuition for blind assembly. Therefore, improper assembly frequently occurs during the assembly process of the torque converter and the hydraulic automatic transmission.

[0005] When matching the torque converter with the engine, it is necessary to ensure a fixed distance between the surface of the torque converter and the stop surface of the torque converter housing after installation. However, due to the accumulation of machining errors of various parts, the distance between the surface of the torque converter and the stop surface of the torque converter housing is inconsistent for each torque converter. Therefore, it is necessary to add shims to ensure a consistent distance between the surface of the torque converter and the stop surface of the torque converter housing, based on the error between different parts of each hydraulic automatic transmission. However, adjusting the shims requires repeated segmented measurements, and the error of each measurement accumulates with the number of measurements, resulting in a large measurement error. Furthermore, to eliminate the influence of gaps between parts during the measurement process, the torque converter assembly must be reversed and measured under the action of gravity. This not only increases the complexity of the measurement and wastes a lot of time, but also poses certain safety hazards, with a risk of damage to operators and on-site parts. During the measurement process, the measurement benchmarks, measuring tools, and measurement methods of each installation operator are inconsistent, making it impossible to guarantee the consistency of the assembly state of each hydraulic automatic transmission. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a hydraulic torque converter, auxiliary tooling and assembly method to solve the technical problem that the existing technology cannot guarantee the consistency of the assembly state of hydraulic automatic transmissions.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A hydraulic torque converter assembly includes a hydraulic torque converter cover wheel, a hydraulic torque converter keypad, a friction plate backing plate, and a hydraulic torque converter pump wheel that are fixedly connected in sequence. A drive tooth is fixedly connected to the bottom end of the hydraulic torque converter pump wheel. The hydraulic torque converter cover wheel, hydraulic torque converter keypad, friction plate backing plate, hydraulic torque converter pump wheel, and drive tooth form a first cavity. A coaxial hydraulic torque converter locking disc, turbine hub, and guide wheel seat are sequentially arranged at the center of the first cavity.

[0009] A torsional damper is fixedly connected to the vertical end of the turbine hub. The friction plate assembly of the torsional damper, located on the radially outer side of the torsional damper, is connected to the hydraulic torque converter keyway. A hydraulic torque converter turbine is fixedly connected to the vertical end of the turbine hub.

[0010] A one-way clutch is sleeved on the outer side of the guide wheel seat. The one-way clutch and the guide wheel seat are circumferentially fixed by a connecting plate. A hydraulic torque converter guide wheel is fixedly connected to the connecting plate.

[0011] There is a first gap between the hydraulic torque converter turbine and the hydraulic torque converter guide wheel; there is a second gap between the hydraulic torque converter guide wheel and the hydraulic torque converter pump wheel; there is a third gap between the hydraulic torque converter turbine and the hydraulic torque converter pump wheel; and there is a fourth gap between the hydraulic torque converter cover wheel and the hydraulic torque converter locking disc.

[0012] A locking piston is fitted at the bottom of the hydraulic torque converter cover wheel. The top of the locking piston contacts the hydraulic torque converter cover wheel, and the bottom of the locking piston contacts the top of the friction plate assembly.

[0013] This invention also includes the following technical features:

[0014] The bottom end of the hydraulic torque converter pump wheel is fixedly connected to the drive gear by the first bolt.

[0015] The hydraulic torque converter cover wheel, hydraulic torque converter keypad, friction plate back plate, and hydraulic torque converter pump wheel are fixedly connected by a second bolt.

[0016] The vertical end of the turbine hub is fixedly connected to the torsional damper by a third bolt.

[0017] The vertically downward end of the turbine hub is fixedly connected to the hydraulic torque converter turbine by a fourth bolt.

[0018] The connecting plate is fixed to the hydraulic torque converter guide wheel by rivets.

[0019] A sealing ring is provided between the hydraulic torque converter cover wheel and the locking piston.

[0020] An auxiliary tooling for assembling the hydraulic torque converter assembly includes a support auxiliary component and a locking auxiliary component. The support auxiliary component includes a cylindrical section and a cylindrical section with increased diameter. The locking auxiliary component includes a disc with a groove at its center, a boss at the center of the groove, a through hole at the boss, and four horizontal plates evenly spaced along the outer edge of the disc.

[0021] A transmission housing assembly includes a torque converter housing, wherein a turbine shaft is disposed at the center of the torque converter housing; a turbine shaft gasket mounting surface is provided on the top of the turbine shaft, and a torque converter housing stop surface is provided on the upper part of the torque converter housing.

[0022] A method for assembling a hydraulic torque converter, comprising assembling the hydraulic torque converter assembly into the transmission housing assembly based on the auxiliary tooling, specifically including the following steps:

[0023] Step 1: Place the locking auxiliary disc onto the turbine shaft washer mounting surface on the upper end face of the turbine shaft, so that the boss contacts the upper end face of the turbine shaft and the through hole of the locking auxiliary is aligned with the threaded hole of the turbine shaft.

[0024] Step 2: Screw the locking nut into the through hole of the locking auxiliary component and the threaded hole of the turbine shaft and lock it in place;

[0025] Step 3: Measure the distance m1 (mm) between the stop surface of the torque converter housing and the upper surface of the locking auxiliary component;

[0026] Step 4: Calculate the distance A1 (mm) between the torque converter housing stop surface and the turbine shaft gasket mounting surface;

[0027] A1 = m1 - L1

[0028] in:

[0029] L1 is the thickness of the locking auxiliary component, in mm;

[0030] Step 5: Place the support auxiliary component on top of the locking auxiliary component, so that the cylindrical section of the support auxiliary component faces upward and the center of the cylindrical section is coaxial with the center of the locking auxiliary component.

[0031] Step 6: Slowly hoist the hydraulic torque converter assembly above the support auxiliary component, and then slowly lower it.

[0032] Step 7: After the hydraulic torque converter assembly is lowered into place, measure the distance m2 (mm) between the mounting surface of the hydraulic torque converter and the upper surface of the support auxiliary component;

[0033] Step 8: Calculate the distance A2 (mm) between the lower surface of the hydraulic torque converter locking disc and the hydraulic torque converter mounting surface;

[0034] A2 = L2 - m2

[0035] in:

[0036] L2 is the distance between the shoulder surface of the support component and the upper surface of the support component, in mm;

[0037] Step nine, calculate the thickness D of the adjusting shim;

[0038] D = H - A1 - A2

[0039] in:

[0040] H represents the distance between the torque converter housing stop surface and the torque converter mounting surface after the torque converter is properly installed, in mm.

[0041] Step 10: Measure the distance d between the turbine shaft shim mounting surface and the upper end face of the turbine shaft, and determine whether the thickness D of the adjusting shim is greater than d. If so, select an adjusting shim with a thickness of D and proceed to Step 11; otherwise, the hydraulic torque converter assembly will directly contact the upper end face of the turbine shaft during assembly, and no adjusting shim is required.

[0042] Step 11: Slowly lift the hydraulic torque converter assembly, remove the support accessories, loosen and remove the lock nut; remove the locking accessories, place the adjusting shim on the turbine shaft shim mounting surface, and make the center hole of the adjusting shim and the center hole of the turbine shaft shim mounting surface on the turbine shaft coaxial;

[0043] Step 12: Slowly lower the hydraulic torque converter assembly, pass the locking nut through the hydraulic torque converter cover wheel, hydraulic torque converter locking plate and adjusting shim in sequence, connect it to the threaded hole of the turbine shaft and lock it; and install the oil sealing nut on the top of the hydraulic torque converter cover wheel;

[0044] Step 13: Measure the distance h between the torque converter housing stop surface and the hydraulic torque converter mounting surface. If the measured value h satisfies the following formula, the assembly is qualified; otherwise, the assembly is unqualified. Remove the oil sealing nut and return to step 7.

[0045] h≤H.

[0046] Compared with the prior art, the beneficial technical effects of this invention are:

[0047] (I) The assembly method of the present invention does not require reverse measurement of the hydraulic torque converter assembly, which avoids the significant safety hazards that may arise during tooling and flipping due to the large weight and volume of the torque converter itself; it also improves the assembly efficiency during the assembly process, ensures the consistency of the assembly method, and further ensures the consistency of the hydraulic transmission assembly.

[0048] (II) In this invention, only two direct measurements, m1 and m2, are needed during the torque converter assembly process to calculate the required shim thickness. Furthermore, the reference for each measurement remains consistent, without any dimensional conversion or equivalence. All errors during the measurement process originate from these two measurements, and the calculated values ​​A1 and A2 required for shim selection are only related to m1 and m2. In actual operation, optimization methods such as averaging multiple measurements can be used to avoid the accumulation of tolerances caused by indirect multiple measurements.

[0049] (III) The tooling in this invention is universal and can be used to assemble all hydraulic torque converter assemblies of the same type of product. Attached Figure Description

[0050] Figure 1 This is a cross-sectional view of the hydraulic torque converter in this invention;

[0051] Figure 2 This is a schematic diagram of the supporting auxiliary component in this invention;

[0052] Figure 3 This is a schematic diagram of the locking auxiliary component in this invention;

[0053] Figure 4 This is a structural diagram of the assembly process of the hydraulic torque converter in this invention;

[0054] Figure 5 This is a partially enlarged view of the assembly position of the adjusting shim in this invention;

[0055] Figure 6 This is a structural diagram of the hydraulic torque converter after assembly in this invention.

[0056] 1-Hydraulic torque converter turbine, 2-Hydraulic torque converter guide wheel, 3-Hydraulic torque converter pump wheel, 4-First clearance, 5-Second clearance, 6-Third clearance, 7-Hydraulic torque converter locking disc, 8-Hydraulic torque converter cover wheel, 9-Fourth clearance, 11-Support auxiliary component, 12-Locking auxiliary component, 13-Torque converter housing, 14-Turbine shaft, 15-Locking nut, 16-Torque converter housing stop face, 17-Turbine shaft gasket mounting surface, 19- Hydraulic torque converter mounting surface, 22-Oil sealing nut, 23-Adjusting shim, 24-Torsion damper, 25-Hydraulic torque converter keypad, 26-Lock-up clutch, 27-Lock-up piston, 28-Friction plate backing plate, 29-Second bolt, 30-Turbine hub, 31-Third bolt, 32-Fourth bolt, 33-Guide wheel seat, 34-One-way clutch, 35-Rivet, 36-Drive gear, 37-First bolt, 38-Connecting plate.

[0057] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0058] It should be noted that, unless otherwise specified, all components in this invention are those known in the art.

[0059] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0060] This invention provides a hydraulic torque converter assembly, comprising a hydraulic torque converter cover wheel 8, a hydraulic torque converter keypad 25, a friction plate backing plate 28, and a hydraulic torque converter pump wheel 3, which are fixedly connected in sequence. A drive tooth 36 is fixedly connected to the bottom end of the hydraulic torque converter pump wheel 3. The hydraulic torque converter cover wheel 8, the hydraulic torque converter keypad 25, the friction plate backing plate 28, the hydraulic torque converter pump wheel 3, and the drive tooth 36 form a first cavity. A coaxial hydraulic torque converter locking disc 7, a turbine hub 30, and a guide wheel seat 33 are sequentially arranged at the center of the first cavity.

[0061] A torsional damper 24 is fixedly connected to the vertical end of the turbine hub 30. The friction plate assembly 26, which is located on the radial outer side of the torsional damper 24, is connected to the hydraulic torque converter keypad 25. A hydraulic torque converter turbine 1 is fixedly connected to the vertical end of the turbine hub 30.

[0062] A one-way clutch 34 is sleeved on the outer side of the guide wheel seat 33. The one-way clutch 34 and the guide wheel seat 33 are circumferentially fixed by the connecting plate 38. A hydraulic torque converter guide wheel 2 is fixedly connected to the connecting plate 38.

[0063] There is a first gap 4 between the hydraulic torque converter turbine 1 and the hydraulic torque converter guide wheel 2; there is a second gap 5 between the hydraulic torque converter guide wheel 2 and the hydraulic torque converter pump wheel 3; there is a third gap 6 between the hydraulic torque converter turbine 1 and the hydraulic torque converter pump wheel 3; and there is a fourth gap 9 between the hydraulic torque converter cover wheel 8 and the hydraulic torque converter locking disc 7.

[0064] A locking piston 27 is fitted at the bottom of the torque converter cover wheel 8. The top of the locking piston 27 contacts the torque converter cover wheel 8, and the bottom of the locking piston 27 contacts the top of the friction plate assembly 26.

[0065] In the above technical solution, when there is no pressure in the piston chamber of the lock-up piston 27, the torque converter keyway 25 and friction plate backing plate 28 transmit the torque output from the engine to the torque converter pump impeller 3. Then, through the action of the torque converter guide wheel 2 and the torque converter turbine 1, the torque input to the torque converter pump impeller 3 is changed according to the actual working conditions and transmitted to the transmission input shaft at the rear end, thus realizing the torque conversion function of the torque converter. When pressure is built up in the piston chamber of the lock-up piston 27, the lock-up clutch 26 is engaged, allowing the torque output from the engine to be directly transmitted through the torque converter cover wheel 8 to the turbine hub 30 fixedly connected to the torque converter turbine 1 via the torsional damper 24, directly transmitting the engine torque to the transmission input shaft at the rear end. At this time, the torque converter has no torque conversion function and only serves as a power transmission component for the engine.

[0066] The bottom end of the hydraulic torque converter pump wheel 3 is fixedly connected to the drive gear 36 by the first bolt 37.

[0067] In the above technical solutions, bolted connections facilitate installation and disassembly.

[0068] The hydraulic torque converter cover wheel 8, hydraulic torque converter keypad 25, friction plate back plate 28 and hydraulic torque converter pump wheel 3 are fixedly connected by the second bolt 29.

[0069] In the above technical solutions, bolted connections facilitate installation and disassembly.

[0070] The upper vertical end of the turbine hub 30 is fixedly connected to the torsional damper 24 by the third bolt 31.

[0071] In the above technical solutions, bolted connections facilitate installation and disassembly.

[0072] The vertical lower end of the turbine hub 30 is fixedly connected to the hydraulic torque converter turbine 1 by the fourth bolt 32.

[0073] In the above technical solutions, bolted connections facilitate installation and disassembly.

[0074] The connecting plate 38 is fixed to the hydraulic torque converter guide wheel 2 by rivets 35.

[0075] In the above technical solution, the riveted connection facilitates installation and disassembly.

[0076] A sealing ring is provided between the hydraulic torque converter cover wheel 8 and the lock-up piston 27.

[0077] In the above technical solution, the sealing ring is used to prevent oil from leaking out during operation.

[0078] This invention provides an auxiliary tooling for assembling a hydraulic torque converter assembly, including a support auxiliary component 11 and a locking auxiliary component 12. The support auxiliary component 11 includes a cylindrical section 1101 with an increased diameter and a cylindrical section 1102. The locking auxiliary component 12 includes a disc 1201, a groove 1202 is provided at the center of the disc 1201, a boss 1203 is provided at the center of the groove 1202, a through hole 1204 is provided on the boss 1203, and four horizontal plates 1205 are equally spaced on the outer edge of the disc 1201.

[0079] In the above technical solution, during the descent, the first gap 4, the second gap 5, the third gap 6 and the fourth gap 9 are eliminated due to the supporting effect of the supporting auxiliary component 11; the locking auxiliary component 12 is used to support the hydraulic torque converter assembly and the supporting auxiliary component 11, and to provide a measurement reference for subsequent measurements.

[0080] In addition, this tooling is versatile and can be used to assemble all hydraulic torque converter assemblies of the same type of product.

[0081] The present invention provides a transmission housing assembly, including a torque converter housing 13, a turbine shaft 14 disposed at the center of the torque converter housing 13; a turbine shaft gasket mounting surface 17 is provided on the top of the turbine shaft 14, and a torque converter housing stop surface 16 is provided on the upper part of the torque converter housing 13.

[0082] This invention provides a method for assembling a hydraulic torque converter, which uses auxiliary tooling to assemble the hydraulic torque converter assembly into the transmission housing assembly, specifically including the following steps:

[0083] Step 1: Place the locking auxiliary part 12 disc 1201 on the turbine shaft washer mounting surface 17 on the upper end face of the turbine shaft 14, so that the boss 1203 contacts the upper end face of the turbine shaft 14 and the through hole 1204 of the locking auxiliary part 12 is aligned with the threaded hole of the turbine shaft 14.

[0084] Step 2: Screw the locking nut 15 into the through hole 1204 of the locking auxiliary part 12 and the threaded hole of the turbine shaft 14 and lock it in place;

[0085] Step 3: Measure the distance m1 (mm) between the torque converter housing stop surface 16 and the upper surface of the locking auxiliary component 12;

[0086] Step 4: Calculate the distance A1 (mm) between the torque converter housing stop surface 16 and the turbine shaft gasket mounting surface 17;

[0087] A1 = m1 - L1

[0088] in:

[0089] L1 is the thickness of the locking auxiliary component 12, in mm;

[0090] Step 5: Place the support auxiliary component 11 on top of the locking auxiliary component 12, so that the cylindrical section 1101 of the support auxiliary component 11 faces upward and the center of the cylindrical section 1102 is coaxial with the center of the locking auxiliary component 12.

[0091] Step 6: Slowly hoist the hydraulic torque converter assembly above the support auxiliary component 11, and then slowly lower it.

[0092] Step 7: After the hydraulic torque converter assembly is lowered into place, measure the distance m2 (mm) between the hydraulic torque converter mounting surface 19 and the upper surface of the support auxiliary component 11.

[0093] Step 8: Calculate the distance A2 (mm) between the lower surface of the hydraulic torque converter locking disc 7 and the hydraulic torque converter mounting surface 19;

[0094] A2 = L2 - m2

[0095] in:

[0096] L2 is the distance between the shoulder surface of the support auxiliary component 11 and the upper surface of the support auxiliary component 11, in mm;

[0097] Step nine, calculate the thickness D of the adjusting shim 23;

[0098] D = H - A1 - A2

[0099] in:

[0100] H is the distance between the torque converter housing stop surface 16 and the torque converter mounting surface 19 after the hydraulic torque converter is properly installed, in mm;

[0101] Step 10: Measure the distance d between the turbine shaft shim mounting surface 17 and the upper end face of the turbine shaft 14, and determine whether the thickness D of the adjusting shim 23 is greater than d. If so, select the adjusting shim 23 with a thickness of D and proceed to step 11; otherwise, the hydraulic torque converter assembly will directly contact the upper end face of the turbine shaft 14 during assembly, and no adjusting shim is required.

[0102] Step 11: Slowly lift the hydraulic torque converter assembly, remove the support auxiliary part 11, loosen and remove the locking nut 15; remove the locking auxiliary part 12, place the adjusting shim 23 on the turbine shaft shim mounting surface 17, and make the center hole of the adjusting shim 23 coaxial with the center hole of the turbine shaft shim mounting surface 17 on the turbine shaft 14.

[0103] Step 12: Slowly lower the hydraulic torque converter assembly, pass the locking nut 15 through the hydraulic torque converter cover wheel 8, the hydraulic torque converter locking disc 7 and the adjusting shim 23 in sequence, connect it to the threaded hole of the turbine shaft 14 and lock it; and install the sealing nut 22 on the top of the hydraulic torque converter cover wheel 8.

[0104] Step 13: Measure the distance h between the torque converter housing stop surface 16 and the hydraulic torque converter mounting surface 19. If the measured value h satisfies the following formula, the assembly is qualified; otherwise, the assembly is unqualified. Remove the oil sealing nut 22 and return to step 7.

[0105] h≤H.

[0106] In the above technical solution, only two direct measurements, m1 and m2, are needed during torque converter assembly to calculate the required shim thickness. Furthermore, the reference for each measurement remains consistent, without any dimensional conversion or equivalence. All errors during the measurement process originate from these two measurements, and the calculated values ​​A1 and A2 for shim selection are only related to m1 and m2. In actual operation, optimization methods such as averaging multiple measurements can be used to avoid the accumulation of tolerances caused by indirect multiple measurements.

[0107] The assembly method of this solution eliminates the need for reverse measurement of the hydraulic torque converter assembly, avoiding significant safety hazards during tooling and flipping due to the large weight and volume of the torque converter itself. It also improves assembly efficiency, ensures consistency of assembly methods, and further guarantees the consistency of hydraulic transmission assembly.

[0108] During the descent, the first gap 4, the second gap 5, the third gap 6 and the fourth gap 9 are eliminated due to the supporting effect of the support auxiliary component 11; the locking auxiliary component 12 is used to support the hydraulic torque converter assembly and the support auxiliary component 11, and to provide a measurement reference for subsequent measurements.

[0109] The required thickness range of the adjustment shim 23 is determined by allowing a 0.3 tolerance fluctuation above and below the calculated D value.

Claims

1. An auxiliary tooling, characterized in that, For assembling a hydraulic torque converter assembly, it includes a support auxiliary component (11) and a locking auxiliary component (12). The support auxiliary component (11) includes a cylindrical section (1101) and a cylindrical section (1102) with an increased diameter. The locking auxiliary component (12) includes a disc (1201), a groove (1202) is provided at the center of the disc (1201), a boss (1203) is provided at the center of the groove (1202), a through hole (1204) is provided on the boss (1203), and four horizontal plates (1205) are provided at equal intervals on the outer edge of the disc (1201). The hydraulic torque converter assembly includes a hydraulic torque converter cover wheel (8), a hydraulic torque converter keypad (25), a friction plate back plate (28), and a hydraulic torque converter pump wheel (3) that are fixedly connected in sequence. A drive tooth (36) is fixedly connected to the bottom end of the hydraulic torque converter pump wheel (3). The hydraulic torque converter cover wheel (8), the hydraulic torque converter keypad (25), the friction plate back plate (28), the hydraulic torque converter pump wheel (3), and the drive tooth (36) form a first cavity. A coaxial hydraulic torque converter locking disc (7), a turbine hub (30), and a guide wheel seat (33) are arranged in sequence at the center of the first cavity. A torsional damper (24) is fixedly connected to the vertical end of the turbine hub (30). The friction plate group (26) of the torsional damper (24) is connected to the hydraulic torque converter keypad (25) on the radially outer side of the torsional damper (24). A hydraulic torque converter turbine (1) is fixedly connected to the vertical end of the turbine hub (30). A one-way clutch (34) is sleeved on the outer side of the guide wheel seat (33). The one-way clutch (34) and the guide wheel seat (33) are circumferentially fixed by a connecting plate (38). A hydraulic torque converter guide wheel (2) is fixedly connected to the connecting plate (38). There is a first gap (4) between the hydraulic torque converter turbine (1) and the hydraulic torque converter guide wheel (2); there is a second gap (5) between the hydraulic torque converter guide wheel (2) and the hydraulic torque converter pump wheel (3); there is a third gap (6) between the hydraulic torque converter turbine (1) and the hydraulic torque converter pump wheel (3); there is a fourth gap (9) between the hydraulic torque converter cover wheel (8) and the hydraulic torque converter locking disc (7). A locking piston (27) is fitted at the bottom of the hydraulic torque converter cover wheel (8). The top of the locking piston (27) contacts the hydraulic torque converter cover wheel (8), and the bottom of the locking piston (27) contacts the top of the friction plate assembly (26).

2. The auxiliary tooling as described in claim 1, characterized in that, The bottom end of the hydraulic torque converter pump wheel (3) is fixedly connected to the drive gear (36) by the first bolt (37).

3. The auxiliary tooling as described in claim 1, characterized in that, The hydraulic torque converter cover wheel (8), hydraulic torque converter keypad (25), friction plate back plate (28) and hydraulic torque converter pump wheel (3) are fixedly connected by the second bolt (29).

4. The auxiliary tooling as described in claim 1, characterized in that, The vertical end of the turbine hub (30) is fixedly connected to the torsional damper (24) by a third bolt (31).

5. The auxiliary tooling as described in claim 1, characterized in that, The vertical lower end of the turbine hub (30) is fixedly connected to the hydraulic torque converter turbine (1) by a fourth bolt (32).

6. The auxiliary tooling as described in claim 1, characterized in that, The connecting plate (38) is fixed to the hydraulic torque converter guide wheel (2) by rivets (35).

7. The auxiliary tooling as described in claim 1, characterized in that, A sealing ring is provided between the hydraulic torque converter cover wheel (8) and the locking piston (27).

8. A method for assembling a hydraulic torque converter, characterized in that, The hydraulic torque converter assembly is assembled into the transmission housing assembly based on the auxiliary tooling described in any one of claims 1 to 7. The transmission housing assembly includes a torque converter housing (13), and a turbine shaft (14) is provided at the center of the torque converter housing (13). A turbine shaft gasket mounting surface (17) is provided on the top of the turbine shaft (14), and a torque converter housing stop surface (16) is provided on the upper part of the torque converter housing (13). This specifically includes the following steps: Step 1: Place the locking auxiliary part (12) disc (1201) on the turbine shaft washer mounting surface (17) on the upper end face of the turbine shaft (14), so that the boss (1203) contacts the upper end face of the turbine shaft (14) and the through hole (1204) of the locking auxiliary part (12) is aligned with the threaded hole of the turbine shaft (14); Step 2: Screw the locking nut (15) into the through hole (1204) of the locking auxiliary part (12) and the threaded hole of the turbine shaft (14) and lock it in place; Step 3: Measure the distance between the torque converter housing stop surface (16) and the upper surface of the locking auxiliary component (12). mm; Step 4: Calculate the distance between the torque converter housing stop surface (16) and the turbine shaft gasket mounting surface (17). mm; in: The thickness of the locking auxiliary component (12) is in mm; Step 5: Place the support auxiliary component (11) on top of the locking auxiliary component (12), so that the cylindrical section (1101) of the support auxiliary component (11) faces upward and the center of the cylindrical section (1102) is coaxial with the center of the locking auxiliary component (12); Step 6: Slowly hoist the hydraulic torque converter assembly above the support auxiliary component (11), and then slowly lower it; Step 7: After the hydraulic torque converter assembly is lowered into place, measure the distance between the hydraulic torque converter mounting surface (19) and the upper surface of the support auxiliary component (11). mm; Step 8: Calculate the distance between the lower surface of the hydraulic torque converter locking disc (7) and the hydraulic torque converter mounting surface (19). mm; in: The distance between the shoulder surface of the support auxiliary component (11) and the upper surface of the support auxiliary component (11), in mm; Step 9: Calculate the thickness of the adjusting shim (23). ; in: The distance between the torque converter housing stop surface (16) and the torque converter mounting surface (19) after the hydraulic torque converter is properly installed, in mm; Step 10: Measure the distance d between the turbine shaft shim mounting surface (17) and the upper end face of the turbine shaft (14) to determine the thickness of the adjusting shim (23). If the thickness is greater than d, then select an adjustment shim (23) with a thickness of D and proceed to step eleven; otherwise, the hydraulic torque converter assembly will directly contact the upper end face of the turbine shaft (14) during assembly, and no adjustment shim is required. Step 11: Slowly lift the hydraulic torque converter assembly, remove the support auxiliary part (11), loosen the lock nut (15) and remove the lock nut (15); remove the locking auxiliary part (12), place the adjusting shim (23) on the turbine shaft shim mounting surface (17), and make the center hole of the adjusting shim (23) and the center hole of the turbine shaft shim mounting surface (17) on the turbine shaft (14) coaxial; Step 12: Slowly lower the hydraulic torque converter assembly, pass the locking nut (15) through the hydraulic torque converter cover wheel (8), the hydraulic torque converter locking plate (7) and the adjusting shim (23) in sequence, and connect and lock it to the threaded hole of the turbine shaft (14); and install the sealing nut (22) on the top of the hydraulic torque converter cover wheel (8). Step 13: Measure the distance h between the torque converter housing stop surface (16) and the hydraulic torque converter mounting surface (19). If the measured value h satisfies the following formula, the assembly is qualified; otherwise, the assembly is unqualified. Remove the oil sealing nut (22) and return to step 7. 。

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