Torque converter leakage testing device

Abstract

The utility model discloses a torque converter leakage test device, which relates to the technical field of torque converter maintenance and detection equipment, and comprises a mounting rack, a leakage test assembly, a test water tank and a water tank lifting assembly, and the water tank lifting assembly comprises a placement platform, a driving structure and a pair of screw lifting structures. Each screw lifting structure comprises a mounting rail, a threaded sliding block and a threaded rotating rod, the threaded sliding blocks and the threaded rotating rods are arranged in the mounting rails, the two ends of the threaded rotating rods penetrate through the mounting rails correspondingly and are rotationally connected with the mounting rails, and the threaded sliding blocks are arranged on the threaded rotating rods in a sleeving mode and are in threaded connection with the threaded rotating rods; the threaded sliding blocks are in sliding connection with the mounting rails, and the two ends of the placement platform are fixedly connected with the threaded sliding blocks in the pair of screw lifting structures respectively, so that the problems that when an existing torque converter leakage testing machine is used, liquid in the testing water tank is prone to splashing, attached to the ground and the leakage testing machine and difficult to clean, and operators are prone to fall down are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of torque converter repair and testing equipment, and in particular to a torque converter leak testing device. Background Technology

[0002] With economic development, automobiles are becoming increasingly widely used, making automobile maintenance even more important. Automatic transmission torque converters are repaired more frequently in automobile maintenance. After welding repair, if pinholes appear at the weld joint, the torque converter will leak oil at the pinhole location after installation, which can have very serious consequences.

[0003] Currently, most repair shops rely solely on manual visual inspection, which is inaccurate and unreliable, often resulting in the discovery of oil leaks. A small number of repair shops use leak testing machines, which are typically cylinder-driven. During operation, liquid in the test tank frequently splashes out. Furthermore, because the torque converter contains oil, the liquid in the test tank may also contain oil. This splashed liquid adheres to the ground and the leak testing machine, making it difficult to clean. The liquid on the ground also poses a risk of slipping and falling for the operator.

[0004] A utility model application with application number CN201220016282.0 discloses a leak tester for an automatic transmission torque converter, including a bracket, a cylinder, and a water tank. The bracket has a journal seal plug position adjustment cylinder at its top. The bottom of the piston rod in the journal seal plug position adjustment cylinder is connected to a journal seal plug tensioning cylinder. The bottom of the piston rod in the journal seal plug tensioning cylinder is connected to a torque converter, which is housed in a torque converter mounting bracket. A water tank is located at the bottom of the torque converter mounting bracket and is connected to the bottom of the bracket via two lifting cylinders. A torque converter pressure device is installed on the piston rod in the journal seal plug position adjustment cylinder. However, during use, the liquid in the test water tank easily splashes, adhering to the ground and the leak tester, making it difficult to clean and potentially causing the operator to slip and fall. Utility Model Content

[0005] Based on this, and in response to the above problems, this utility model proposes a torque converter leak testing device, which solves the problem that when using current torque converter leak testing machines, the liquid in the test tank is easy to splash and adhere to the ground and the leak testing machine, which is difficult to clean and can easily cause operators to slip and fall.

[0006] The technical solution of this utility model is:

[0007] A torque converter leak testing device includes a mounting frame, a leak testing assembly, a test water tank, and a water tank lifting assembly. The leak testing assembly and the water tank lifting assembly are mounted on the mounting frame, with the leak testing assembly positioned above the water tank lifting assembly.

[0008] The water tank lifting assembly includes a placement platform, a drive structure, and a pair of screw lifting structures. The drive structure and the pair of screw lifting structures are installed together at the bottom of the mounting frame. The placement platform is located between the pair of screw lifting structures, and the test water tank is placed on the placement platform.

[0009] Each pair of screw lifting structures includes a mounting rail, a threaded slider, and a threaded rotating rod. The threaded slider and the threaded rotating rod are both set inside the mounting rail. Both ends of the threaded rotating rod pass through the mounting rail and are rotatably connected to the mounting rail. The threaded slider is sleeved on the threaded rotating rod and is threadedly connected to the threaded rotating rod. The threaded slider is slidably connected to the mounting rail. Both ends of the placement platform are fixedly connected to the threaded sliders in the pair of screw lifting structures. The drive structure is used to drive the threaded rotating rods in the pair of screw lifting structures.

[0010] Preferably, the drive structure includes a drive motor, a T-type gear commutator, a first gear commutator, and a second gear commutator. The drive motor, T-type gear commutator, first gear commutator, and second gear commutator are configured to cooperate at the bottom of the mounting frame. The output shaft of the drive motor is fixedly connected to the input shaft of the T-type gear commutator. The first gear commutator and the second gear commutator are respectively configured on both sides of the T-type gear commutator. The input shafts of the first gear commutator and the second gear commutator are respectively fixedly connected to the two output shafts of the T-type gear commutator. A pair of screw lifting structures are respectively fixedly configured on the top of the first gear commutator and the second gear commutator, and the ends of the threaded rods in the pair of screw lifting structures are respectively fixedly connected to the output shafts of the first gear commutator and the second gear commutator.

[0011] Preferably, the bottom of the mounting rail in the pair of screw lifting structures is provided with a connecting part, which includes a pair of clamping plates and a pair of support plates. One end of the pair of clamping plates is fixedly connected to both sides of the bottom of the mounting rail. The pair of clamping plates can clamp the top of the first gear commutator or the second gear commutator and are fixedly connected by bolts. The pair of support plates are respectively disposed between the pair of clamping plates. One end of the pair of support plates is fixedly connected to the pair of clamping plates. The pair of support plates can contact the top of the first gear commutator or the second gear commutator. The output shafts of the first gear commutator and the second gear commutator can both pass through the pair of support plates and are clearance-fitted with the pair of support plates.

[0012] Preferably, the placement platform includes a bottom support and a placement plate. Each of the two screw lifting structures has a sliding limit groove on one side of the mounting rail. The two ends of the bottom support pass through the sliding limit groove and are fixedly connected to the threaded slider in the two screw lifting structures. The bottom support is slidably connected to the sliding limit groove, and the placement plate is fixedly installed on the top of the bottom support.

[0013] Preferably, the placement plate is provided with a placement slot for placing the test water tank, one end of which extends through the placement plate, and the test water tank can be placed in the placement slot.

[0014] Preferably, the leak testing assembly includes a placement frame, a lifting drive cylinder, and a fixed leak testing structure. The placement frame is located on the top of the mounting frame, the lifting drive cylinder is fixedly located on the top of the placement frame, the output shaft of the lifting drive cylinder passes through the top of the placement frame and is slidably connected to the top of the placement frame, and the fixed leak testing structure is fixedly located at the end of the lifting drive cylinder for testing whether the torque converter has pinholes.

[0015] Preferably, the fixed leak test structure includes a mounting housing, a sealing head, an inflation tube, a piston, and an airbag. The mounting housing has a cavity. One end of the mounting housing is fixedly connected to the end of the output shaft of the lifting drive cylinder, and the other end of the mounting housing has an opening communicating with the cavity. The sealing head is located at the end of the mounting housing with the opening and is threadedly connected to the mounting housing. A partition plate is provided inside the cavity, dividing the cavity into a first cavity and a second cavity. The first cavity is located above the second cavity. The inflation tube and the piston are located in the second cavity. One end of the inflation tube passes through the partition plate and communicates with the first cavity. The inflation tube is slidably connected to the partition plate, and the other end of the inflation tube passes through... The piston is sleeved on the inflation tube and fixedly connected to it. The piston is slidably connected to the inner wall of the second cavity. The airbag is located at one end of the inflation tube that passes through the closed head and is slidably connected to the closed head. The end of the inflation tube that passes through the closed head is provided with a compression plate that cooperates with the airbag. The compression plate is threadedly connected to the inflation tube. One end of the airbag contacts the closed head, and the other end contacts the compression plate. The mounting housing is provided with a first interface and a second interface. The first interface communicates with the first cavity, and the second interface communicates with the second cavity. The second interface is located below the piston. The first interface and the second interface are respectively connected to an external air source.

[0016] Preferably, the sealing head has a groove, and the end of the mounting housing with an opening can be inserted into the groove and threadedly connected to the groove.

[0017] Preferably, a return spring is provided in the second cavity. The return spring is sleeved on the inflation tube, with one end of the return spring in contact with the partition plate and the other end in contact with the piston.

[0018] Preferably, the placement frame is provided with a pair of connecting rods, which are respectively located on both sides of the middle part of the placement frame. One end of the pair of connecting rods is fixedly connected to the placement frame, and the other end is detachably connected to the upper end of the mounting frame by bolts.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In use, this invention uses a drive structure to drive a threaded rotating rod, which in turn drives a threaded slider to adjust the height of a placement platform fixedly connected to the slider. This, in turn, adjusts the height of the test water tank placed on the platform. Compared to cylinder-driven adjustments of the test water tank, this invention prevents liquid from splashing during height adjustments, solving the problem of liquid splashing from the test water tank onto the ground and machine, which is difficult to clean and can cause operators to slip and fall. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a torque converter leak testing device described in this embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of a torque converter leak testing device described in this embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a partial structural diagram of a torque converter leak testing device described in an embodiment of this utility model. Figure 1 ;

[0024] Figure 4 This is a partial structural diagram of a torque converter leak testing device described in an embodiment of this utility model. Figure 2 ;

[0025] Figure 5 This is as described in the embodiments of this utility model. Figure 4 A magnified schematic diagram of the partial structure at point A in the middle;

[0026] Figure 6 This is an exploded structural diagram of the fixed leak test structure described in the embodiments of this utility model;

[0027] Figure 7 This is a cross-sectional structural diagram of the fixed leak testing structure described in the embodiment of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 10-Mounting frame, 20-Leak test assembly, 200-Placement frame, 201-Lifting drive cylinder, 202-Fixed leak test structure, 203-Mounting housing, 204-Sealing head, 205-Inflation pipe, 206-Piston, 207-Airbag, 208-Cavity, 209-Opening, 210-Divider plate, 211-First cavity, 212-Second cavity, 213-Extrusion plate, 214-First interface, 215-Second interface, 216-Groove, 217-Reset spring, 218-Connecting rod, 219-Placement 30-Test water tank, 40-Water tank lifting assembly, 400-Placement platform, 401-Drive structure, 402-Screw lifting structure, 403-Mounting rail, 404-Threaded slider, 405-Threaded rotating rod, 406-Drive motor, 407-T-type gear commutator, 408-First gear commutator, 409-Second gear commutator, 410-Connecting part, 411-Clamping plate, 412-Support plate, 413-Bottom bracket, 414-Placement plate, 415-Sliding limit groove, 416-Placement groove. Detailed Implementation

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example:

[0032] like Figures 1 to 3 As shown, in order to solve the above problems, this embodiment discloses a torque converter leak test device, including a mounting frame 10, a leak test component 20, a test water tank 30 and a water tank lifting component 40. The leak test component 20 and the water tank lifting component 40 are mounted on the mounting frame 10, and the leak test component 20 is located above the water tank lifting component 40.

[0033] The water tank lifting assembly 40 includes a placement platform 400, a drive structure 401, and a pair of screw lifting structures 402. The drive structure 401 and the pair of screw lifting structures 402 are fitted together at the bottom of the mounting frame 10. The placement platform 400 is positioned between the pair of screw lifting structures 402. The test water tank 30 is placed on the placement platform 400.

[0034] Each of the pair of screw lifting structures 402 includes a mounting rail 403, a threaded slider 404, and a threaded rotating rod 405. The threaded slider 404 and the threaded rotating rod 405 are both disposed within the mounting rail 403. Both ends of the threaded rotating rod 405 pass through the mounting rail 403 and are rotatably connected to the mounting rail 403. The threaded slider 404 is sleeved on the threaded rotating rod 405 and is threadedly connected to the threaded rotating rod 405. The threaded slider 404 is slidably connected to the mounting rail 403. Both ends of the placement platform 400 are fixedly connected to the threaded slider 404 in the pair of screw lifting structures 402. The drive structure 401 is used to drive the threaded rotating rod 405 in the pair of screw lifting structures 402.

[0035] In use, this invention uses a drive structure 401 to drive a threaded rotating rod 405, which in turn drives a threaded slider 404. This allows for adjustment of the height of the placement platform 400, which is fixedly connected to the threaded slider 404, thereby adjusting the height of the test water tank 30 placed on the placement platform 400. Compared to the cylinder-driven method of adjusting the test water tank 30, this invention prevents liquid from splashing when adjusting the height of the test water tank 30. This solves the problem of liquid splashing from the test water tank 30 in current torque converter leak testing machines, which is difficult to clean from the ground and the machine, and can easily cause operators to slip and fall.

[0036] The main reason why the liquid in the test tank 30 is prone to splashing when the torque converter leak tester uses a cylinder drive is that the cylinder rises too quickly, with noticeable jerks at the beginning and end, causing significant shaking of the liquid in the test tank 30 and resulting in splashing. In contrast, using a threaded cylinder results in a more uniform rising speed, reducing the likelihood of significant shaking of the liquid in the test tank 30 at the beginning and end, thus minimizing splashing.

[0037] like Figure 4 As shown, to facilitate simultaneous adjustment of the height of the placement platform 400 via a pair of screw lifting structures 402, this embodiment modifies the above embodiment. The difference lies in that the drive structure 401 includes a drive motor 406, a T-shaped gear commutator 407, a first gear commutator 408, and a second gear commutator 409. The drive motor 406, T-shaped gear commutator 407, first gear commutator 408, and second gear commutator 409 are fitted together at the bottom of the mounting frame 10. The output shaft of the drive motor 406 is connected to the output shaft of the T-shaped gear commutator 407. The input shafts are fixedly connected, and the first gear commutator 408 and the second gear commutator 409 are respectively disposed on both sides of the T-type gear commutator 407. The input shafts of the first gear commutator 408 and the second gear commutator 409 are fixedly connected to the two output shafts of the T-type gear commutator 407. A pair of screw lifting structures 402 are fixedly disposed on the top of the first gear commutator 408 and the second gear commutator 409, and the end of one end of the threaded rod 405 in the pair of screw lifting structures 402 is fixedly connected to the output shafts of the first gear commutator 408 and the second gear commutator 409.

[0038] It should be noted that the T-type gear commutator 407 can be a T-series steering gear that can achieve the functions of this utility model in the prior art, and the first gear commutator 408 and the second gear commutator 409 can be HD-series bevel gear commutators that can achieve the functions of this utility model in the prior art. The output shaft of the drive motor 406 and the input shaft of the T-type gear commutator 407 can be fixedly connected by a coupling in the prior art, and the input shafts of the first gear commutator 408 and the second gear commutator 409 and the two output shafts of the T-type gear commutator 407 can be fixedly connected by a coupling and a transmission link in the prior art.

[0039] In use, the T-type gear commutator 407 can be driven by the drive motor 406, which in turn drives the first gear commutator 408 and the second gear commutator 409, thereby driving the threaded rod 405.

[0040] like Figure 5 As shown, for ease of installation, the bottom of the mounting rails 403 in the pair of screw lifting structures 402 is provided with a connecting part 410. The connecting part 410 includes a pair of clamping plates 411 and a pair of support plates 412. One end of the pair of clamping plates 411 is fixedly connected to both sides of the bottom of the mounting rails 403. The pair of clamping plates 411 can clamp the top of the first gear commutator 408 or the second gear commutator 409 and are fixedly connected by bolts. The pair of support plates 412 are respectively arranged between the pair of clamping plates 411. One end of the pair of support plates 412 is fixedly connected to the pair of clamping plates 411. The pair of support plates 412 can contact the top of the first gear commutator 408 or the second gear commutator 409. The output shafts of the first gear commutator 408 and the second gear commutator 409 can pass through the pair of support plates 412 and are clearance-fitted with the pair of support plates 412.

[0041] In use, a pair of clamping plates 411 are used to connect the mounting rail 403 to the first gear commutator 408 or the second gear commutator 409, and a pair of support plates 412 are used to support the mounting rail 403, thereby facilitating the connection of the first gear commutator 408 and the second gear commutator 409 to the threaded rods 405 in the pair of screw lifting structures 402.

[0042] like Figure 3As shown, in order to facilitate the placement of the test water tank 30, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the placement platform 400 includes a bottom support 413 and a placement plate 414. Each side of the mounting rail 403 in the pair of screw lifting structures 402 is provided with a sliding limit groove 415. Both ends of the bottom support 413 pass through the sliding limit groove 415 and are fixedly connected to the threaded slider 404 in the pair of screw lifting structures 402. The bottom support 413 is slidably connected to the sliding limit groove 415, and the placement plate 414 is fixedly installed on the top of the bottom support 413.

[0043] The placement plate 414 is provided with a placement slot 416 for placing the test water tank 30. One end of the placement slot 416 passes through the placement plate 414, and the test water tank 30 can be placed in the placement slot 416.

[0044] The bottom bracket 413 provides support for the placement plate 414, ensuring stable placement of the test water tank 30 on the plate 414. Meanwhile, the placement slot 416 extends through the placement plate 414 at one end, facilitating the installation and removal of the test water tank 30.

[0045] like Figure 4 As shown, in order to facilitate testing whether the torque converter has pinholes, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the leak test assembly 20 includes a placement frame 200, a lifting drive cylinder 201, and a fixed leak test structure 202. The placement frame 200 is set on the top of the mounting frame 10, the lifting drive cylinder 201 is fixedly set on the top of the placement frame 200, the output shaft of the lifting drive cylinder 201 passes through the top of the placement frame 200 and is slidably connected to the top of the placement frame 200, and the fixed leak test structure 202 is fixedly set at the end of the lifting drive cylinder 201 for testing whether the torque converter has pinholes.

[0046] like Figures 6 to 7As shown, the fixed leak test structure 202 includes a mounting housing 203, a sealing head 204, an inflation tube 205, a piston 206, and an airbag 207. The mounting housing 203 has a cavity 208. One end of the mounting housing 203 is fixedly connected to the end of the output shaft of the lifting drive cylinder 201. The other end of the mounting housing 203 has an opening 209 communicating with the cavity 208. The sealing head 204 is located at the end of the mounting housing 203 with the opening 209 and is threadedly connected to the mounting housing 203. A partition plate 210 is provided inside the cavity 208, dividing the cavity 208 into a first cavity 211 and a second cavity 212. The first cavity 211 is located above the second cavity 212. The inflation tube 205 and piston 206 are located inside the second cavity 212. One end of the inflation tube 205 passes through the partition plate 210 and communicates with the first cavity 211. The inflation tube 205 is slidably connected to the partition plate 210. 5. The other end passes through the closed head 204 and is slidably connected to the closed head 204. The piston 206 is sleeved on the inflation tube 205 and is fixedly connected to the inflation tube 205. The piston 206 is slidably connected to the inner wall of the second cavity 212. The airbag 207 is set at one end of the inflation tube 205 that passes through the closed head 204 and is slidably connected to the closed head 204. The end of the inflation tube 205 that passes through the closed head 204 is provided with a compression plate 213 that cooperates with the airbag 207. The compression plate 213 is threadedly connected to the inflation tube 205. One end of the airbag 207 contacts the closed head 204, and the other end contacts the compression plate 213. The mounting housing 203 is provided with a first interface 214 and a second interface 215. The first interface 214 is connected to the first cavity 211, and the second interface 215 is connected to the second cavity 212. The second interface 215 is located below the piston 206. The first interface 214 and the second interface 215 are respectively connected to an external air source.

[0047] During use, when the test water tank 30 rises to the test position, the lifting drive cylinder 201 drives the fixed leak test structure 202 to move downwards until the airbag 207 is inserted into the torque converter. Then, air is injected into the second chamber 212 through the second interface 215, causing the piston 206 to move upwards, thereby driving the compression plate 213 to compress the airbag 207, thus sealing the connection between the airbag 207 and the torque converter. Then, air is injected into the first chamber 211 through the first interface 214. The gas in the first chamber 211 enters the torque converter through the inflation pipe 205, thereby testing whether the torque converter has pinholes. The presence of air bubbles at the weld joint is considered to indicate the presence of pinholes.

[0048] The test location is as follows: the lower end of the frame 200 is placed inside the test water tank 30, and the liquid in the test water tank 30 can cover the position of the torque converter.

[0049] It should be noted that the airbag 207 is an existing airbag 207 capable of achieving the functions of this utility model. The end of the inflation tube 205 that penetrates the partition plate 210 is dynamically sealed to the partition plate 210 using an existing sealing ring, and the end of the inflation tube 205 that penetrates the sealing head 204 is also dynamically sealed to the sealing head 204 using an existing sealing ring.

[0050] To facilitate the installation of the sealing head 204, a groove 216 is provided on the sealing head 204. One end of the mounting housing 203 with an opening 209 can be inserted into the groove 216 and threadedly connected to the groove 216. Only matching threads need to be provided on the outer surface of the mounting housing 203 and the side of the groove 216 that contacts the outer surface. The threaded connection provides both good sealing performance and convenient installation of the sealing head 204.

[0051] like Figure 6 As shown, to facilitate the reset of piston 206, a reset spring 217 is provided in the second chamber 212. The reset spring 217 is sleeved on the inflation tube 205, with one end of the reset spring 217 contacting the partition plate 210 and the other end contacting piston 206. When piston 206 moves upward, it compresses the spring. When gas flows out from the second port 215, piston 206 is driven by the reset force of the compressed spring, thereby resetting.

[0052] like Figure 4 As shown, in order to facilitate the installation of the leak testing component 20, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the placement frame 200 is provided with a pair of connecting rods 218. The pair of connecting rods 218 are respectively set on both sides of the middle part of the placement frame 200. One end of the pair of connecting rods 218 is fixedly connected to the placement frame 200, and the other end is detachably connected to the upper end of the mounting frame 10 by bolts.

[0053] The placement frame 200 is detachably connected to the mounting frame 10 by a pair of connecting rods 218 and bolts, which facilitates the disassembly and assembly of the placement frame 200, thereby facilitating the installation of the leak test assembly 20.

[0054] To facilitate the placement of the torque converter, a placement tray 219 is provided at the bottom center of the placement frame 200, and the placement tray 219 is fixedly connected to the placement frame 200. The placement tray 219 facilitates the placement of the torque converter.

[0055] As a further preferred embodiment, the bottom of the mounting frame 10 is also provided with an anti-slip rubber pad, which is affixed to the bottom of the mounting frame 10. The anti-slip rubber pad can effectively prevent the mounting frame 10 from sliding, thereby further preventing the liquid in the test water tank 30 from splashing out.

[0056] Working principle of this utility model:

[0057] In use, this invention uses a drive structure 401 to drive a threaded rotating rod 405, which in turn drives a threaded slider 404. This allows for adjustment of the height of the placement platform 400, which is fixedly connected to the threaded slider 404, thereby adjusting the height of the test water tank 30 placed on the placement platform 400. Compared to the cylinder-driven method of adjusting the test water tank 30, this invention prevents liquid from splashing when adjusting the height of the test water tank 30. This solves the problem of liquid splashing from the test water tank 30 in current torque converter leak testing machines, which is difficult to clean from the ground and the machine, and can easily cause operators to slip and fall.

[0058] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A torque converter leak testing device, characterized in that, It includes an installation frame (10), a leak test assembly (20), a test water tank (30), and a water tank lifting assembly (40). The leak test assembly (20) and the water tank lifting assembly (40) are mounted on the installation frame (10), and the leak test assembly (20) is located above the water tank lifting assembly (40). The water tank lifting assembly (40) includes a placement platform (400), a drive structure (401), and a pair of screw lifting structures (402). The drive structure (401) and the pair of screw lifting structures (402) are fitted together at the bottom of the mounting frame (10). The placement platform (400) is positioned between the pair of screw lifting structures (402). The test water tank (30) is placed on the placement platform (400). Each of the two screw lifting structures (402) includes an installation rail (403), a threaded slider (404), and a threaded rotating rod (405). The threaded slider (404) and the threaded rotating rod (405) are both set inside the installation rail (403). The two ends of the threaded rotating rod (405) pass through the installation rail (403) and are rotatably connected to the installation rail (403). The threaded slider (404) is sleeved on the threaded rotating rod (405) and is threadedly connected to the threaded rotating rod (405). The threaded slider (404) is slidably connected to the installation rail (403). The two ends of the placement platform (400) are fixedly connected to the threaded slider (404) in the two screw lifting structures (402). The drive structure (401) is used to drive the threaded rotating rod (405) in the two screw lifting structures (402).

2. The torque converter leak testing device according to claim 1, characterized in that, The drive structure (401) includes a drive motor (406), a T-type gear commutator (407), a first gear commutator (408), and a second gear commutator (409). The drive motor (406), T-type gear commutator (407), first gear commutator (408), and second gear commutator (409) are fitted together at the bottom of the mounting frame (10). The output shaft of the drive motor (406) is fixedly connected to the input shaft of the T-type gear commutator (407). The first gear commutator (408) and the second gear commutator (409) are respectively provided with The input shafts of the first gear commutator (408) and the second gear commutator (409) are fixedly connected to the two output shafts of the T-type gear commutator (407) respectively, and a pair of screw lifting structures (402) are fixedly installed on the top of the first gear commutator (408) and the second gear commutator (409) respectively. The end of one end of the threaded rod (405) in the pair of screw lifting structures (402) is fixedly connected to the output shafts of the first gear commutator (408) and the second gear commutator (409) respectively.

3. The torque converter leak testing device according to claim 2, characterized in that, Each of the mounting rails (403) in the pair of screw lifting structures (402) has a connecting part (410) at the bottom. The connecting part (410) includes a pair of clamping plates (411) and a pair of support plates (412). One end of the pair of clamping plates (411) is fixedly connected to both sides of the bottom of the mounting rails (403). The pair of clamping plates (411) can be clamped on the top of the first gear commutator (408) or the second gear commutator (409) and are fixedly connected by bolts. The pair of support plates... Plates (412) are respectively disposed between a pair of clamping plates (411). One end of a pair of support plates (412) is fixedly connected to a pair of clamping plates (411). A pair of support plates (412) can contact the top of the first gear commutator (408) or the second gear commutator (409). The output shafts of the first gear commutator (408) and the second gear commutator (409) can both pass through the pair of support plates (412) and are clearance-fitted with the pair of support plates (412).

4. A torque converter leak testing device according to claim 3, characterized in that, The placement platform (400) includes a bottom bracket (413) and a placement plate (414). Each side of the mounting rail (403) in the pair of screw lifting structures (402) is provided with a sliding limit groove (415). Both ends of the bottom bracket (413) pass through the sliding limit groove (415) and are fixedly connected to the threaded slider (404) in the pair of screw lifting structures (402). The bottom bracket (413) is slidably connected to the sliding limit groove (415). The placement plate (414) is fixedly set on the top of the bottom bracket (413).

5. A torque converter leak testing device according to claim 4, characterized in that, The placement plate (414) is provided with a placement slot (416) for placing the test water tank (30). One end of the placement slot (416) passes through the placement plate (414), and the test water tank (30) can be placed in the placement slot (416).

6. A torque converter leak testing device according to claim 1 or 5, characterized in that, The leak test assembly (20) includes a placement frame (200), a lifting drive cylinder (201), and a fixed leak test structure (202). The placement frame (200) is set on the top of the mounting frame (10). The lifting drive cylinder (201) is fixedly set on the top of the placement frame (200). The output shaft of the lifting drive cylinder (201) passes through the top of the placement frame (200) and is slidably connected to the top of the placement frame (200). The fixed leak test structure (202) is fixedly set at the end of the lifting drive cylinder (201) and is used to test whether the torque converter has sand holes.

7. A torque converter leak testing device according to claim 6, characterized in that, The fixed leak test structure (202) includes a mounting housing (203), a sealing head (204), an inflation tube (205), a piston (206), and an airbag (207). The mounting housing (203) has a cavity (208). One end of the mounting housing (203) is fixedly connected to the end of the output shaft of the lifting drive cylinder (201). The other end of the mounting housing (203) has an opening (209) communicating with the cavity (208). The sealing head (204) is located at the end of the mounting housing (203) with the opening (209) and is connected to the mounting... The housing (203) is threaded, and a partition plate (210) is provided inside the cavity (208). The partition plate (210) divides the cavity (208) into a first cavity (211) and a second cavity (212). The first cavity (211) is located above the second cavity (212). The inflation tube (205) and the piston (206) are located inside the second cavity (212). One end of the inflation tube (205) passes through the partition plate (210) and communicates with the first cavity (211). The inflation tube (205) is slidably connected to the partition plate (210). The other end passes through the closed head (204) and is slidably connected to the closed head (204). The piston (206) is sleeved on the inflation tube (205) and is fixedly connected to the inflation tube (205). The piston (206) is slidably connected to the inner wall of the second chamber (212). The airbag (207) is located at one end of the inflation tube (205) that passes through the closed head (204) and is slidably connected to the closed head (204). The end of the inflation tube (205) that passes through the closed head (204) is provided with a compression disc (213) that cooperates with the airbag (207). The extrusion plate (213) is threadedly connected to the inflation tube (205). One end of the airbag (207) is in contact with the closed head (204), and the other end is in contact with the extrusion plate (213). The mounting housing (203) is provided with a first interface (214) and a second interface (215). The first interface (214) is connected to the first cavity (211), and the second interface (215) is connected to the second cavity (212). The second interface (215) is located below the piston (206). The first interface (214) and the second interface (215) are respectively connected to an external air source.

8. A torque converter leak testing device according to claim 7, characterized in that, The closed head (204) is provided with a groove (216), and the end of the mounting housing (203) with an opening (209) can be inserted into the groove (216) and threadedly connected to the groove (216).

9. A torque converter leak testing device according to claim 8, characterized in that, The second cavity (212) is equipped with a return spring (217), which is sleeved on the inflation tube (205). One end of the return spring (217) is in contact with the partition plate (210), and the other end is in contact with the piston (206).

10. A torque converter leak testing device according to claim 9, characterized in that, The placement frame (200) is provided with a pair of connecting rods (218). The pair of connecting rods (218) are respectively set on both sides of the middle part of the placement frame (200). One end of the pair of connecting rods (218) is fixedly connected to the placement frame (200), and the other end is detachably connected to the upper end of the mounting frame (10) by bolts.

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