Torque converter shell of hydraulic transmission module and working method of torque converter shell

Abstract

The invention belongs to the technical field of hydraulic transmission, and discloses a torque converter shell of a hydraulic transmission module and a working method of the torque converter shell. The working method of the torque converter shell of the hydraulic transmission module comprises the steps that oil sequentially enters a rough filtering oil channel, an oil supply oil channel and a fine filtering oil channel through an oil pan and enters a hydraulic valve plate through the fine filtering oil channel, part of the oil of the hydraulic valve plate enters a locking oil channel, and the other part of the oil of the hydraulic valve plate enters a working oil channel; the oil sequentially enters the shell body oil channel and the cooling oil channel through the working oil channel, and flows back to the oil pan through the cooling oil channel; the torque converter can be matched with mounting connectors of various high-horsepower engine shells, the mounting requirement of the torque converter is met, and meanwhile normal operation of a control oil way and a working oil way can be achieved; oil is primarily filtered through the rough filtering oil channel and then is further purified through the fine filtering oil channel, and the reliability of the whole hydraulic transmission system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic transmission, and in particular to a torque converter housing of a hydraulic transmission module and a working method thereof. Background Art

[0002] In the heavy-duty commercial vehicle sector, the drivetrain performance of large-tonnage vehicles (approximately 130 tons) is crucial, directly impacting transport efficiency and operating costs. Traditionally, these vehicles utilize a clutch slip start method, but this method has significant drawbacks. Frequent clutch slippage during vehicle start generates significant heat, accelerating clutch plate wear. This not only reduces starting ability, leading to jitter and power loss, but also significantly increases the frequency and cost of after-sales maintenance, impacting vehicle operation.

[0003] To improve this situation, hydraulic transmission modules came into being and have gradually been used. The hydraulic transmission module is mainly composed of a torque converter, which is installed between the engine and the transmission and transmits power with hydraulic oil as the medium. The torque converter can automatically adjust the torque output according to the vehicle load, making the vehicle start more stable and powerful, effectively improving the vehicle's starting ability; at the same time, it reduces direct friction and impact between mechanical components, reduces the occurrence of failures, and thus reduces after-sales maintenance costs, providing a strong guarantee for the stable operation of large-tonnage vehicles.

[0004] However, the existing hydraulic transmission modules also have obvious shortcomings. The existing hydraulic transmission modules have poor adaptability and cannot perfectly match the installation interfaces of various high-horsepower engine housings, which not only makes the installation process cumbersome, but may even make it impossible to install due to mismatch; at the same time, it is difficult to meet the installation requirements of the torque converter, affecting the normal operation of the torque converter; in addition, in terms of the hydraulic system, the control oil circuit and the working oil circuit cannot operate normally, and are prone to problems such as oil circuit blockage and pressure instability, which in turn affects the power transmission efficiency and brings many hidden dangers to vehicle operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a torque converter housing and a working method of a hydraulic transmission module to overcome the problems existing in the prior art. The present invention can adapt to the installation interfaces of various high-horsepower engine housings, meet the installation requirements of the torque converter, and at the same time achieve the normal operation of the control oil circuit and the working oil circuit; the oil is initially filtered through the coarse filter oil channel and then further purified through the fine filter oil channel, thereby ensuring the reliability of the entire hydraulic transmission system.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a torque converter housing for a hydraulic transmission module, comprising a torque converter housing, an oil pan mounting surface provided at the bottom of the torque converter housing for mounting an oil pan, a hydraulic valve plate mounting surface provided within the oil pan mounting surface for mounting the hydraulic valve plate, a hollow partition wall provided within the interior of the torque converter housing, a through hole formed in the middle of the hollow partition wall, and an oil distribution plate mounting surface provided around the through hole; One end of one side of the hollow partition wall is provided with a housing oil passage, a locking oil passage, and a working oil passage. One end of the housing oil passage, the locking oil passage, and the working oil passage are respectively connected to the mounting surface of the oil distribution plate, and the other end of the housing oil passage, the locking oil passage, and the working oil passage are respectively connected to the mounting surface of the hydraulic valve plate, for controlling the opening and closing of the locking oil passage and regulating the pressure of the working oil passage. The housing oil passage is also connected to a cooling oil passage, which is connected to the mounting surface of the oil pan and is arranged on the outside of the torque converter housing on one side near the working oil passage. An oil pump mounting surface is provided at the other end of one side of the hollow partition wall for mounting the oil pump. An oil supply passage, a coarse filter passage, and a fine filter passage are provided on the oil pump mounting surface. One end of the coarse filter passage is connected to the oil pan mounting surface, the other end of the coarse filter passage is connected to the oil supply passage, one end of the fine filter passage is connected to the oil supply passage, and the other end of the fine filter passage is connected to the hydraulic valve plate mounting surface. Furthermore, the oil supply passage includes an oil pump inlet and an oil pump outlet, the oil pump inlet is arranged on the oil pump mounting surface, the oil pump inlet is connected to the oil pump outlet through the oil pump, the oil pump outlet passes through the oil pump mounting surface to the oil pan mounting surface, and the oil pump outlet is located on one side of the hydraulic valve plate mounting surface; Furthermore, the coarse filter oil passage includes a coarse filter oil outlet and a coarse filter. The coarse filter oil outlet extends from the oil pump mounting surface to the oil pan mounting surface. The coarse filter oil outlet located on the oil pump mounting surface is connected to the oil pump inlet. The coarse filter oil outlet located on the oil pan mounting surface is connected to the outlet of the coarse filter. The inlet of the coarse filter is connected to the oil pan. The coarse filter oil outlet located on the oil pan mounting surface is arranged on a side of the oil pump outlet away from the hydraulic valve plate mounting surface. The fine filter oil passage includes a fine filter oil outlet and a fine filter. The fine filter oil outlet is arranged on the mounting surface of the oil pan. The fine filter oil outlet is located on the side of the oil pump outlet close to the mounting surface of the hydraulic valve plate. One end of the fine filter oil outlet is connected to the outlet of the fine filter, and the other end of the fine filter oil outlet is connected to the mounting surface of the hydraulic valve plate. The inlet of the fine filter is connected to the oil pump outlet. Furthermore, the working oil passage includes an outlet torque converter oil passage and an inlet torque converter oil passage, one end of the outlet torque converter oil passage and the inlet torque converter oil passage are respectively connected to the mounting surface of the oil distribution plate, and the other end of the outlet torque converter oil passage and the inlet torque converter oil passage are respectively connected to the mounting surface of the hydraulic valve plate; Furthermore, the cooling oil circuit includes a housing oil inlet, an oil cooler, and a housing oil outlet. The housing oil inlet and the housing oil outlet are arranged on the outside of the torque converter housing on one side close to the working oil channel. The housing oil inlet is arranged at the bottom of the housing oil outlet to prevent bubbles from being generated by the return oil. A temperature sensor mounting hole is provided at the housing oil outlet for mounting the temperature sensor. One end of the housing oil inlet is connected to the mounting surface of the oil pan, and the other end of the housing oil inlet is connected to the outlet of the oil cooler. One end of the housing oil outlet is connected to the housing oil channel, and the other end of the housing oil outlet is connected to the inlet of the oil cooler. The torque converter housing is provided with a plurality of process installation holes on the outside of the side close to the working oil channel, and the process installation holes are located at the top of the oil outlet of the housing; A liquid level gauge mounting hole is provided on the outside of the torque converter housing on a side away from the working oil channel for mounting a liquid level gauge; Furthermore, the torque converter housing located on the side of the hollow partition wall close to the working oil channel is circumferentially provided with a plurality of wiring harness clip mounting holes; the torque converter housing located on the side of the hollow partition wall away from the working oil channel is circumferentially provided with an engine housing contact surface, and the engine housing contact surface is provided with a plurality of housing fixing through holes; the through holes of the hollow partition wall are provided with oil seal mounting holes, and the oil seal mounting holes are used to cooperate with the torque converter for sealing; through oil channels are also provided at both ends of the hollow partition wall close to the working oil channel to ensure the through flow of oil; Furthermore, a ventilation duct is provided on the top of the torque converter housing, and the ventilation duct extends from the top of the torque converter housing to the interior of the torque converter housing. The ventilation duct located at one end of the top of the torque converter housing is provided with a vent plug mounting hole for installing the vent plug; a refueling hole is provided on the top of the torque converter housing, and the refueling hole is located on one side of the vent plug mounting hole; an internal wiring harness mounting port is also provided on the top of the torque converter housing.

[0007] In a second aspect, the present invention provides a method for operating a torque converter housing of a hydraulic transmission module, comprising the following steps: Step 1: Install the oil pan on the oil pan mounting surface, install the hydraulic valve plate on the hydraulic valve plate mounting surface, and install the oil pump on the oil pump mounting surface; Step 2: The oil enters the coarse filter oil channel, the oil supply oil channel and the fine filter oil channel in sequence through the oil pan, and enters the hydraulic valve plate through the fine filter oil channel; Step 3: Part of the oil in the hydraulic valve plate enters the locking oil channel, and the other part of the oil in the hydraulic valve plate enters the working oil channel, and then enters the housing oil channel and the cooling oil channel in sequence through the working oil channel, and then flows back to the oil pan through the cooling oil channel; Furthermore, the oil supply passage includes an oil pump inlet and an oil pump outlet, the oil pump inlet is arranged on the oil pump mounting surface, the oil pump inlet is connected to the oil pump outlet through the oil pump, the oil pump outlet passes through the oil pump mounting surface to the oil pan mounting surface, and the oil pump outlet is located on one side of the hydraulic valve plate mounting surface; The coarse filter oil passage includes a coarse filter oil outlet and a coarse filter. The coarse filter oil outlet extends from the oil pump mounting surface to the oil pan mounting surface. The coarse filter oil outlet located on the oil pump mounting surface is connected to the oil pump inlet. The coarse filter oil outlet located on the oil pan mounting surface is connected to the outlet of the coarse filter. The inlet of the coarse filter is connected to the oil pan. The coarse filter oil outlet located on the oil pan mounting surface is arranged on a side of the oil pump outlet away from the hydraulic valve plate mounting surface. The fine filter oil passage includes a fine filter oil outlet and a fine filter. The fine filter oil outlet is arranged on the mounting surface of the oil pan. The fine filter oil outlet is located on the side of the oil pump outlet close to the mounting surface of the hydraulic valve plate. One end of the fine filter oil outlet is connected to the outlet of the fine filter, and the other end of the fine filter oil outlet is connected to the mounting surface of the hydraulic valve plate. The inlet of the fine filter is connected to the oil pump outlet. The oil enters the coarse filter oil passage, the oil supply oil passage and the fine filter oil passage in sequence through the oil pan, and enters the hydraulic valve plate through the fine filter oil passage. Specifically, the oil includes: The oil in the oil pan enters the coarse filter through the inlet of the coarse filter for coarse filtration. The coarsely filtered oil enters the coarse filter outlet and the oil pump inlet in sequence through the outlet of the coarse filter. After entering the oil pump through the oil pump inlet, it flows out through the oil pump outlet. After flowing out of the oil pump outlet, the oil enters the fine filter through the inlet of the fine filter for fine filtration. The finely filtered oil enters the fine filter outlet through the outlet of the fine filter and enters the hydraulic valve plate through the fine filter outlet. Furthermore, the working oil passage includes an outlet torque converter oil passage and an inlet torque converter oil passage, one end of the outlet torque converter oil passage and the inlet torque converter oil passage are respectively connected to the mounting surface of the oil distribution plate, and the other end of the outlet torque converter oil passage and the inlet torque converter oil passage are respectively connected to the mounting surface of the hydraulic valve plate; The cooling oil circuit includes a housing oil inlet, an oil cooler, and a housing oil outlet. The housing oil inlet and the housing oil outlet are arranged on the outside of the torque converter housing on one side close to the working oil channel. The housing oil inlet is arranged at the bottom of the housing oil outlet. One end of the housing oil inlet is connected to the oil pan, and the other end of the housing oil inlet is connected to the outlet of the oil cooler. One end of the housing oil outlet is connected to the housing oil channel, and the other end of the housing oil outlet is connected to the inlet of the oil cooler. Another part of the oil in the hydraulic valve plate enters the working oil channel, enters the housing oil channel and the cooling oil channel in sequence through the working oil channel, and flows back to the oil pan through the cooling oil channel. Specifically, it includes: Another part of the oil in the hydraulic valve plate enters the torque converter through the torque converter oil passage and then flows back to the hydraulic valve plate through the torque converter oil passage. The oil flowing back to the hydraulic valve plate enters the housing oil outlet through the housing oil passage. The oil entering the housing oil outlet enters the oil cooler through the inlet of the oil cooler for cooling. The cooled oil enters the housing oil inlet through the outlet of the cooler and the oil entering the housing oil inlet flows back to the oil pan.

[0008] The above technical solution has the following advantages or beneficial effects: In the first aspect, the present invention provides a torque converter housing of a hydraulic transmission module. By adopting aluminum alloy low-pressure casting and convex stop positioning, it can be adapted to a variety of heavy-duty truck engines and meet the demand for lightweight vehicles. It reduces weight while ensuring strength, which helps to improve vehicle fuel economy and performance. By designing a hydraulic valve plate mounting surface, a torque converter locking oil channel, and a working oil channel inside the housing, the working oil circuit pressure of the torque converter can be adjusted, and the opening and closing of the torque converter locking oil channel can be controlled at the same time, meeting the locking and unlocking requirements of the torque converter, simplifying the structure of other parts, reducing complexity, reducing the probability of failure, and improving transmission. The reliability and stability of the system; the oil is first filtered through the coarse filter oil channel and then further purified through the fine filter oil channel to provide clean oil for the hydraulic valve plate mounting surface, ensuring the reliability of the entire hydraulic transmission system and effectively avoiding problems such as blockage and pressure instability; the cooling oil circuit connected to the housing oil channel can promptly take away the heat generated by the system, maintain a suitable operating temperature, and extend the service life of components; the present invention can be adapted to the mounting interfaces of various high-horsepower engine housings, meet the installation requirements of the torque converter, and at the same time realize the normal operation of the control oil circuit and the working oil circuit. This torque converter housing is an important component for the hydraulic transmission module to realize its function.

[0009] Furthermore, the oil pump inlet is installed on the oil pump mounting surface, which facilitates the accurate installation and connection of the oil pump, and ensures the sealing and stability of the oil supply system; the oil pump outlet passes through the oil pump mounting surface to the oil pan mounting surface and is located on the side of the hydraulic valve plate mounting surface, so that the oil can flow smoothly to the hydraulic valve plate mounting surface after coming out of the oil pump, reducing the resistance and path of the oil flow and improving the oil supply efficiency; at the same time, a reasonable oil supply channel design helps to ensure the stability of the oil pressure and flow, and provide reliable working conditions for the hydraulic valve plate mounting surface, thereby ensuring the normal operation of the entire hydraulic transmission module, reducing the probability of failure, and improving the reliability and durability of the system.

[0010] Furthermore, in terms of the coarse filter oil channel, the coarse filter oil outlet passes through the oil pump mounting surface and the oil pan mounting surface, and is connected to the oil pump inlet. The coarse filter inlet is connected to the oil pan, so that the oil flowing out of the oil pan is first preliminarily filtered by the coarse filter to remove larger particles of impurities before entering the oil pump, which effectively protects the oil pump, reduces the wear of the oil pump on impurities, and extends the service life of the oil pump. At the same time, the coarse filter oil outlet is arranged on the side of the oil pump outlet away from the hydraulic valve plate mounting surface, avoiding oil circuit interference and making the oil flow smoother; in terms of the fine filter oil channel, the fine filter oil outlet is installed on the oil pan mounting surface and close to the hydraulic valve plate mounting surface. The fine filter inlet is connected to the oil pump outlet, and the outlet is connected to the hydraulic valve plate mounting surface. After being pressurized by the oil pump, the oil enters the fine filter for further purification, providing the hydraulic valve plate mounting surface with cleaner oil, ensuring the precise control and stable operation of the hydraulic valve plate mounting surface, and improving the reliability and stability of the entire hydraulic transmission system.

[0011] Furthermore, the torque converter oil channel and the torque converter oil channel are respectively connected to the oil distribution plate mounting surface and the hydraulic valve plate mounting surface, thereby realizing effective circulation of oil between the torque converter and the hydraulic valve plate mounting surface; the torque converter oil channel transports the oil adjusted on the hydraulic valve plate mounting surface to the torque converter, providing power support for the normal operation of the torque converter; the torque converter oil channel returns the oil used by the torque converter to the hydraulic valve plate mounting surface, which is convenient for subsequent processing or readjustment; this ensures a stable supply and circulation of oil during the operation of the torque converter, helps maintain the working performance and efficiency of the torque converter, reduces failures caused by oil supply problems, improves the reliability and stability of the entire hydraulic transmission module, and extends the service life of the equipment.

[0012] Furthermore, the oil inlet of the shell in the cooling oil circuit is arranged at the bottom of the oil outlet of the shell, which can effectively prevent the return oil from generating bubbles, ensure the stability of the oil flow and the cooling effect, and avoid the bubbles from causing adverse effects on the system; a temperature sensor is arranged at the oil outlet of the shell to monitor the oil temperature in real time, so as to facilitate timely grasp of the heat dissipation status of the system and ensure that the system operates at an appropriate temperature; the process installation hole is located at the top of the oil outlet of the shell, which provides convenience for installation, maintenance and other operations and optimizes the spatial layout; a liquid level gauge is installed on the side of the torque converter shell away from the working oil channel to facilitate observation of the internal oil position and timely replenishment of the oil.

[0013] Furthermore, several wiring harness clip mounting holes installed circumferentially on the outer side of the hollow partition wall close to the working oil channel can fix the wiring harness and reduce the failure of signal transmission caused by vibration; the engine housing contact surface and several housing fixing through holes arranged circumferentially on the side of the hollow partition wall away from the working oil channel can ensure a stable and precise connection between the torque converter housing and the engine housing, thereby ensuring the stability and reliability of the entire power transmission system and reducing vibration and noise caused by loose connections; the oil seal mounting holes installed on the hollow partition wall through holes can cooperate with the torque converter to achieve good sealing, effectively prevent oil leakage, ensure the normal circulation and working pressure of the oil inside the system, and improve transmission efficiency.

[0014] Furthermore, the ventilation duct can effectively prevent splashing oil from flowing out of the housing; the refueling hole is located on one side of the vent plug, which can facilitate the addition of oil into the housing; the internal wiring harness installation port can connect the circuit to control the internal solenoid valve, thereby realizing the connection between the locking solenoid valve and the controller.

[0015] Secondly, the present invention provides a working method for the torque converter housing of a hydraulic transmission module. In terms of oil filtration, the oil passes through the coarse filter oil channel, the oil supply oil channel and the fine filter oil channel in sequence. The multi-stage filtration mechanism can effectively remove impurities in the oil and ensure the cleanliness of the oil entering the hydraulic valve plate mounting surface. The clean oil can not only reduce the wear of the hydraulic valve plate mounting surface and subsequent oil channels and components, extending their service life, but also improve the stability and reliability of the entire hydraulic transmission system and reduce the failure rate caused by oil contamination. In terms of oil circulation and control, the hydraulic valve plate mounting surface reasonably distributes the oil, a part of which enters the locking oil channel to meet the locking and unlocking requirements of the torque converter, and the other part enters the working oil channel and flows back to the oil pan through the housing oil channel and the cooling oil channel to form a complete cycle. The design of the cooling oil channel can promptly remove the heat generated by the system, maintain a suitable operating temperature, and ensure system performance. The working method of the present invention makes the oil flow path clear, facilitates system monitoring and maintenance, can promptly discover and solve potential problems, improves the maintainability and safety of the system, and ensures the efficient and stable operation of the torque converter.

[0016] Furthermore, the oil is first coarsely filtered through a coarse filter, which can effectively remove larger particles of impurities in the oil and prevent these impurities from entering the subsequent oil pump and fine filter, thereby protecting the oil pump, reducing its wear, extending the service life of the oil pump, and reducing equipment maintenance costs; then, the coarsely filtered oil enters the oil pump for pressurization, and then finely filtered through a fine filter to further remove tiny impurities, providing highly clean oil for the hydraulic valve plate mounting surface, ensuring that the hydraulic valve plate mounting surface works accurately and stably, and improving the reliability and performance of the entire hydraulic transmission system.

[0017] Furthermore, the oil circulates between the hydraulic valve plate mounting surface and the torque converter through the torque converter oil inlet and outlet passages, ensuring a stable oil supply required for the normal operation of the torque converter and maintaining its stable performance; the oil flowing back to the hydraulic valve plate mounting surface enters the oil cooler through the housing oil passage and the housing oil outlet for cooling, which can effectively reduce the oil temperature and avoid affecting the system performance and component life due to excessive oil temperature. The cooled oil flows back to the oil pan through the housing oil inlet, forming a complete cycle; the circulating cooling design can promptly remove the heat generated by the system, ensure that the oil is always in an appropriate operating temperature range, improve the reliability and stability of the system, reduce failures caused by high temperature, extend the overall service life of the equipment, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a torque converter housing of a hydraulic transmission module of the present invention; Figure 2 This is a front view of a torque converter housing of a hydraulic transmission module of the present invention; Figure 3 This is a rear view of a torque converter housing of a hydraulic transmission module of the present invention; Figure 4 This is a left side view of a torque converter housing of a hydraulic transmission module of the present invention; Figure 5 This is a right side view of a torque converter housing of a hydraulic transmission module of the present invention; Figure 6 A top view of a torque converter housing of a hydraulic transmission module of the present invention; Figure 7 A bottom view of a torque converter housing of a hydraulic transmission module of the present invention; In the figure, 1. Torque converter housing; 2. Oil passage out of housing; 3. Locking oil passage; 4. Oil passage out of torque converter; 5. Oil passage inlet to torque converter; 6. Oil pump outlet; 7. Oil pump inlet; 8. Hydraulic valve plate mounting surface; 9. Fine filter outlet; 10. Coarse filter outlet; 11. Oil pan mounting surface; 12. Process mounting hole; 13. Housing oil inlet; 14. Housing oil outlet; 15. Housing fixing through hole; 16. Engine housing contact surface; 17. Oil seal mounting hole; 18. Hollow partition wall; 19. Lifting threaded hole; 20. Oil filling hole; 21. Internal wiring harness mounting port; 22. Breather plug mounting hole; 23. Breather duct; 24. Temperature sensor mounting hole; 25. Wiring harness clip mounting hole; 26. Liquid level gauge mounting hole; 27. Oil pump mounting surface; 28. Through oil passage; 29. ​​Oil distribution plate mounting surface. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain the present invention rather than to limit it. In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention. It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] Example: The present invention provides a torque converter housing of a hydraulic transmission module, which has complex oil passages inside. In order to meet the requirements of lightweighting of the entire vehicle, it is set as an integrated structure formed by low-pressure casting of aluminum alloy, including a torque converter housing 1, an oil pan mounting surface 11, a hydraulic valve plate mounting surface 8, a hollow partition wall 18, an oil distribution plate mounting surface 29, an outlet oil passage 2, a locking oil passage 3, a working oil passage, an oil pump mounting surface 27, a cooling oil passage, an oil supply oil passage, a coarse filter oil passage, a fine filter oil passage, a temperature sensor mounting hole 24, a process mounting hole 12, and a level gauge mounting hole 2. 6. Wiring harness clip mounting hole 25, engine housing contact surface 16, housing fixing through-hole 15, oil seal mounting hole 17, through oil passage 28, vent passage 23, vent plug 22, and internal wiring harness mounting port 21; cooling oil circuit includes housing oil inlet 13, oil cooler, and housing oil outlet 14; oil supply passage includes oil pump inlet 7, oil pump, and oil pump outlet 6; coarse filter oil passage includes coarse filter outlet 10 and coarse filter; fine filter oil passage includes fine filter outlet 9 and fine filter; working oil passage includes torque converter outlet oil passage 4 and torque converter inlet oil passage 5; See also Figure 1 、 Figure 2 and Figure 7The oil pan mounting surface 11 is set at the bottom of the torque converter housing 1, and the oil pan mounting surface 11 is used to mount the oil pan. The hydraulic valve plate mounting surface 8 is mounted inside the oil pan mounting surface 11. The hydraulic valve plate mounting surface 8 is used to mount the hydraulic valve plate. A hollow partition wall 18 is set inside the torque converter housing 1. A through hole is opened in the middle of the hollow partition wall 18, and an oil distribution plate mounting surface 29 is arranged around the through hole; one end of one side of the hollow partition wall 18 is provided with a housing oil passage 2, a locking oil passage 3 and a working oil passage, and one end of the housing oil passage 2, the locking oil passage 3 and the working oil passage is respectively connected to the oil distribution plate mounting surface 29, and the other end of the housing oil passage 2, the locking oil passage 3 and the working oil passage is respectively connected to the oil distribution plate mounting surface 29. The hydraulic valve plate mounting surface 8 is connected to control the opening and closing of the locking oil passage 3 and adjust the pressure of the working oil passage; the housing oil passage 2 is also connected to the cooling oil passage, which is connected to the oil pan mounting surface 11. The cooling oil passage is arranged on the outside of the torque converter housing 1 on the side close to the working oil passage; the other end of the hollow partition wall 18 is provided with an oil pump mounting surface 27 for mounting the oil pump. The oil pump mounting surface 27 is provided with an oil supply passage, a coarse filter passage, and a fine filter passage. One end of the coarse filter passage is connected to the oil pan mounting surface 11, and the other end of the coarse filter passage is connected to the oil supply passage. One end of the fine filter passage is connected to the oil supply passage, and the other end of the fine filter passage is connected to the hydraulic valve plate mounting surface 8. The oil pump inlet 7 of the oil supply channel is set on the oil pump mounting surface 27. The oil pump inlet 7 is connected to the oil pump outlet 6 through the oil pump. The oil pump outlet 6 passes through the oil pump mounting surface 27 to the oil pan mounting surface 11. The oil pump outlet 6 is located on one side of the hydraulic valve plate mounting surface 8; the coarse filter outlet 10 of the coarse filter channel passes through the oil pump mounting surface 27 to the oil pan mounting surface 11. The coarse filter outlet 10 located on the oil pump mounting surface 27 is connected to the oil pump inlet 7. The coarse filter outlet 10 located on the oil pan mounting surface 11 is connected to the outlet of the coarse filter. The inlet of the fine filter oil passage is connected to the oil pan, and the coarse filter oil outlet 10 located on the oil pan mounting surface 11 is arranged on the side of the oil pump outlet 6 away from the hydraulic valve plate mounting surface 8; the fine filter oil outlet 9 of the fine filter oil passage is arranged on the oil pan mounting surface 11, and the fine filter oil outlet 9 is located on the side of the oil pump outlet 6 close to the hydraulic valve plate mounting surface 8, and is used to provide finely filtered hydraulic oil to the entire torque converter. One end of the fine filter oil outlet 9 is connected to the outlet of the fine filter, and the other end of the fine filter oil outlet 9 is connected to the hydraulic valve plate mounting surface 8. The inlet of the fine filter is connected to the oil pump outlet 6; Preferably, the torque converter housing 1 is a cylindrical structure as a whole; Preferably, a hydraulic valve plate mounting surface 8 is provided inside the oil pan mounting surface 11 for regulating the working oil circuit pressure of the torque converter and controlling the opening and closing of the torque converter locking oil circuit; Preferably, both the coarse filter and the fine filter are located below the torque converter housing 1 to facilitate subsequent inspection and maintenance.

[0021] See also Figure 4 and Figure 5 The working oil passage includes an outlet torque converter oil passage 4 and an inlet torque converter oil passage 5. One end of the outlet torque converter oil passage 4 and the inlet torque converter oil passage 5 are respectively connected to the oil distribution plate mounting surface 29, and the other end of the outlet torque converter oil passage 4 and the inlet torque converter oil passage 5 are respectively connected to the hydraulic valve plate mounting surface 8; the housing oil inlet 13 and the housing oil outlet 14 of the cooling oil circuit are arranged on the outside of the torque converter housing 1 on one side close to the working oil passage. The housing oil inlet 13 is arranged at the bottom of the housing oil outlet 14 to prevent bubbles from being generated by the return oil. A temperature sensor mounting hole 24 is provided at the housing oil outlet 14 for installing a temperature sensor to detect the oil outlet temperature for controlling the torque converter. To provide a temperature signal, one end of the housing oil inlet 13 is connected to the oil pan mounting surface 11, the other end of the housing oil inlet 13 is connected to the outlet of the oil cooler, one end of the housing oil outlet 14 is connected to the housing oil passage 2, and the other end of the housing oil outlet 14 is connected to the inlet of the oil cooler; the torque converter housing 1 is also provided with a plurality of process mounting holes 12 on the side close to the working oil passage for clamping the housing and facilitating process assembly; the process mounting holes 12 are located at the top of the housing oil outlet 14; the torque converter housing 1 is provided with a liquid level gauge mounting hole 26 on the side away from the working oil passage for mounting a liquid level gauge that can display the liquid level in real time; Preferably, the housing oil inlet 13 is located lower than the housing oil outlet 14, which can effectively prevent bubbles from being generated by the return oil; Preferably, the number of the process mounting holes 12 may be 2, 3, 4, 5, 6, 7, 8, 9, 10, or any other number that can realize the clamping of the housing.

[0022] See also Figure 1 and Figure 3 Several harness clip mounting holes 25 are circumferentially arranged on the outer periphery of the torque converter housing 1 on the side of the hollow partition wall 18 close to the working oil passage, for fixing the harness and reducing the failure of the transmission signal caused by vibration; an engine housing contact surface 16 is circumferentially arranged on the torque converter housing 1 on the side of the hollow partition wall 18 away from the working oil passage, and a plurality of housing fixing through holes 15 are provided on the engine housing contact surface 16; oil seal mounting holes 17 are provided on the through holes of the hollow partition wall 18, and the oil seal mounting holes 17 are used to cooperate with the torque converter to seal and prevent internal hydraulic leakage; through oil passages 28 are also provided at both ends of the hollow partition wall 18 close to the working oil passage to ensure the oil flow at both ends; Preferably, the engine housing contact surface 16 is in the form of a convex stop, and the torque converter housing 1 is connected to the mounting surface of the engine housing through the engine housing contact surface 16 and the plurality of housing fixing through holes 15, so as to fix the torque converter housing 1; Preferably, the engine housing contact surface 16 is circular, and a plurality of housing fixing through holes 15 are circumferentially arranged on the engine housing contact surface 16; Preferably, the number of the housing fixing through holes 15 can be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, or other numbers that can achieve connection with the mounting surface of the engine housing; Preferably, the number of the wiring harness clip mounting holes 25 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, or other number that can achieve fixed wiring harnesses.

[0023] See also Figure 6 A vent duct 23 is provided on the top of the torque converter housing 1. The vent duct 23 extends from the top of the torque converter housing 1 to the interior of the torque converter housing 1. A vent plug mounting hole 22 is provided on the vent duct 23 at one end of the top of the torque converter housing 1 for mounting the vent plug. A refueling hole 20 is provided on the top of the torque converter housing 1 for conveniently adding hydraulic oil. The refueling hole 20 is located on one side of the vent plug 22. An internal wiring harness mounting port 21 is also provided on the top of the torque converter housing 1 for connecting the circuit to control the internal solenoid valve and realizing the connection between the locking solenoid valve and the controller. Preferably, the ventilation airway 23 is a horizontal airway, which can effectively prevent splashing oil from flowing out of the housing; Preferably, the top of the torque converter housing 1 is further provided with a plurality of lifting threaded holes 19 for installing lifting lugs; Preferably, the number of the lifting threaded holes 19 can be 2, 3, 4, 5, 6, or any other number that can realize lifting.

[0024] In one embodiment of the present invention, a method for operating a torque converter housing of a hydraulic transmission module is provided, comprising the following steps: Step 1: Install the oil pan on the oil pan mounting surface 11, install the hydraulic valve plate on the hydraulic valve plate mounting surface 8, and install the oil pump on the oil pump mounting surface 27; Step 2: The oil enters the coarse filter oil channel, the oil supply oil channel and the fine filter oil channel in sequence through the oil pan, and enters the hydraulic valve plate through the fine filter oil channel; Specifically, the oil in the oil pan enters the coarse filter through the inlet of the coarse filter for coarse filtration. The coarsely filtered oil enters the coarse filter outlet 10 and the oil pump inlet 7 in sequence through the outlet of the coarse filter. After entering the oil pump through the oil pump inlet 7, it flows out through the oil pump outlet 6. After flowing out of the oil pump outlet 6, the oil enters the fine filter through the inlet of the fine filter for fine filtration. The finely filtered oil enters the fine filter outlet 9 through the outlet of the fine filter and enters the hydraulic valve plate through the fine filter outlet 9. Step 2: Part of the oil in the hydraulic valve plate enters the locking oil passage 3, and the other part of the oil in the hydraulic valve plate enters the working oil passage, and then enters the housing oil passage 2 and the cooling oil passage in sequence through the working oil passage, and then flows back to the oil pan through the cooling oil passage; Specifically, another part of the oil in the hydraulic valve plate enters the torque converter through the torque converter oil passage 5 and then flows back to the hydraulic valve plate through the torque converter oil passage 4. The oil flowing back to the hydraulic valve plate enters the housing oil outlet 14 through the housing oil passage 2. The oil entering the housing oil outlet 14 enters the oil cooler through the inlet of the oil cooler for cooling. The cooled oil enters the housing oil inlet 13 through the outlet of the cooler. The oil entering the housing oil inlet 13 flows back to the oil pan.

[0025] The present invention provides a torque converter housing of a hydraulic transmission module, which can be adapted to the installation interfaces of various high-horsepower engine housings, meet the installation requirements of the torque converter, and realize the normal operation of the control oil circuit and the working oil circuit. The torque converter housing is an important component for the hydraulic transmission module to realize its function; by adopting aluminum alloy low-pressure casting and convex stop positioning, it can be adapted to various heavy-duty truck engines and meet the lightweight requirements of the vehicle; a locking oil channel 3 and a working oil channel are designed inside the torque converter housing 1, which can meet the locking and unlocking requirements of the torque converter and reduce the complexity of other parts. At the same time, an installation interface of the control hydraulic valve plate mounting surface and an installation interface of the oil pump are designed to realize the oil supply and control oil circuit of the torque converter; an installation interface of a liquid level gauge 26 is designed on the outside of the torque converter housing 1 to facilitate the observation of the internal oil position; a vent plug 22 is provided on the top of the torque converter housing 1 to ensure the stability of the internal pressure; through the above design, various requirements for the operation of the torque converter are met, the problem of the design responsibility of the torque converter housing is solved, and the design and processing difficulty of other matching parts is reduced.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A torque converter housing of a hydraulic transmission module, characterized in that: The invention comprises a torque converter housing (1), wherein the bottom of the torque converter housing (1) is provided with an oil pan mounting surface (11) for mounting the oil pan, the interior of the oil pan mounting surface (11) is provided with a hydraulic valve plate mounting surface (8) for mounting the hydraulic valve plate, and the interior of the torque converter housing (1) is provided with a hollow partition wall (18), the middle of the hollow partition wall (18) is provided with a through hole, and the through hole is surrounded by an oil distribution plate mounting surface (29); One end of one side of the hollow partition wall (18) is provided with a housing oil passage (2), a locking oil passage (3) and a working oil passage, one end of the housing oil passage (2), the locking oil passage (3) and the working oil passage are respectively connected to the oil distribution plate mounting surface (29), and the other ends of the housing oil passage (2), the locking oil passage (3) and the working oil passage are respectively connected to the hydraulic valve plate mounting surface (8) for controlling the switch of the locking oil passage (3) and regulating the pressure of the working oil passage; the housing oil passage (2) is also connected to a cooling oil passage, which is connected to the oil pan mounting surface (11), and is provided on the outside of the torque converter housing (1) on one side close to the working oil passage; An oil pump mounting surface (27) is provided at the other end of one side of the hollow partition wall (18) for mounting the oil pump. An oil supply passage, a coarse filter passage, and a fine filter passage are provided on the oil pump mounting surface (27). One end of the coarse filter passage is connected to the oil pan mounting surface (11), the other end of the coarse filter passage is connected to the oil supply passage, one end of the fine filter passage is connected to the oil supply passage, and the other end of the fine filter passage is connected to the hydraulic valve plate mounting surface (8).

2. The torque converter housing of a hydraulic transmission module according to claim 1, characterized in that: The oil supply passage comprises an oil pump inlet (7) and an oil pump outlet (6), wherein the oil pump inlet (7) is arranged on the oil pump mounting surface (27), the oil pump inlet (7) is connected to the oil pump outlet (6) through the oil pump, the oil pump outlet (6) passes through the oil pump mounting surface (27) to the oil pan mounting surface (11), and the oil pump outlet (6) is located on one side of the hydraulic valve plate mounting surface (8).

3. The torque converter housing of a hydraulic transmission module according to claim 2, characterized in that: The coarse filter oil passage comprises a coarse filter oil outlet (10) and a coarse filter, the coarse filter oil outlet (10) passes through from the oil pump mounting surface (27) to the oil pan mounting surface (11), the coarse filter oil outlet (10) located on the oil pump mounting surface (27) is connected to the oil pump oil inlet (7), the coarse filter oil outlet (10) located on the oil pan mounting surface (11) is connected to the outlet of the coarse filter, the inlet of the coarse filter is connected to the oil pan, and the coarse filter oil outlet (10) located on the oil pan mounting surface (11) is arranged on a side of the oil pump oil outlet (6) away from the hydraulic valve plate mounting surface (8); The fine filter oil passage comprises a fine filter oil outlet (9) and a fine filter. The fine filter oil outlet (9) is arranged on the oil pan mounting surface (11). The fine filter oil outlet (9) is located on a side of the oil pump oil outlet (6) close to the hydraulic valve plate mounting surface (8). One end of the fine filter oil outlet (9) is connected to the outlet of the fine filter, and the other end of the fine filter oil outlet (9) is connected to the hydraulic valve plate mounting surface (8). The inlet of the fine filter is connected to the oil pump oil outlet (6).

4. The torque converter housing of a hydraulic transmission module according to claim 1, characterized in that: The working oil passage comprises an outlet torque converter oil passage (4) and an inlet torque converter oil passage (5), one end of the outlet torque converter oil passage (4) and the inlet torque converter oil passage (5) are respectively connected to the oil distribution plate mounting surface (29), and the other end of the outlet torque converter oil passage (4) and the inlet torque converter oil passage (5) are respectively connected to the hydraulic valve plate mounting surface (8).

5. The torque converter housing of a hydraulic transmission module according to claim 1, characterized in that: The cooling oil circuit includes a housing oil inlet (13), an oil cooler, and a housing oil outlet (14). The housing oil inlet (13) and the housing oil outlet (14) are arranged on the outside of the torque converter housing (1) near the working oil passage. The housing oil inlet (13) is arranged at the bottom of the housing oil outlet (14) to prevent bubbles from being generated by the return oil. A temperature sensor mounting hole (24) is provided at the housing oil outlet (14) to mount the temperature sensor. One end of the housing oil inlet (13) is connected to the oil pan mounting surface (11), and the other end of the housing oil inlet (13) is connected to the outlet of the oil cooler. One end of the housing oil outlet (14) is connected to the housing oil passage (2), and the other end of the housing oil outlet (14) is connected to the inlet of the oil cooler. A plurality of process installation holes (12) are further provided on the outside of the torque converter housing (1) on one side close to the working oil passage, and the process installation holes (12) are located at the top of the housing oil outlet (14); A liquid level gauge mounting hole (26) is provided on the outside of the torque converter housing (1) on a side away from the working oil channel for mounting a liquid level gauge.

6. The torque converter housing of a hydraulic transmission module according to claim 1, characterized in that: The torque converter housing (1) located on the side of the hollow partition wall (18) close to the working oil channel is provided with a plurality of harness clip mounting holes (25) in the circumferential direction; the torque converter housing (1) located on the side of the hollow partition wall (18) away from the working oil channel is provided with an engine housing contact surface (16) in the circumferential direction, and the engine housing contact surface (16) is provided with a plurality of housing fixing through holes (15); the through holes of the hollow partition wall (18) are provided with oil seal mounting holes (17), and the oil seal mounting holes (17) are used to cooperate with the torque converter for sealing; through oil channels (28) are also provided at both ends of the hollow partition wall (18) close to the working oil channel to ensure the through flow of oil.

7. The torque converter housing of a hydraulic transmission module according to claim 1, characterized in that: The top of the torque converter housing (1) is provided with a vent duct (23), which extends from the top of the torque converter housing (1) to the interior of the torque converter housing (1), and the vent duct (23) located at one end of the top of the torque converter housing (1) is provided with a vent plug mounting hole (22) for mounting the vent plug; the top of the torque converter housing (1) is provided with a refueling hole (20), which is located on one side of the vent plug mounting hole (22); and the top of the torque converter housing (1) is also provided with an internal wiring harness mounting port (21).

8. A method for operating a torque converter housing of a hydraulic transmission module, characterized in that: A torque converter housing of a hydraulic transmission module according to any one of claims 1 to 7, comprising the following steps: Install the oil pan on the oil pan mounting surface (11), install the hydraulic valve plate on the hydraulic valve plate mounting surface (8), and install the oil pump on the oil pump mounting surface (27); The oil enters the coarse filter oil passage, oil supply oil passage and fine filter oil passage in sequence through the oil pan, and enters the hydraulic valve plate through the fine filter oil passage; A portion of the oil in the hydraulic valve plate enters the locking oil passage (3), and another portion of the oil in the hydraulic valve plate enters the working oil passage, enters the housing oil passage (2) and the cooling oil passage in sequence through the working oil passage, and flows back to the oil pan through the cooling oil passage.

9. The method for operating a torque converter housing of a hydraulic transmission module according to claim 8, characterized in that: The oil supply passage comprises an oil pump inlet (7) and an oil pump outlet (6), the oil pump inlet (7) being arranged on the oil pump mounting surface (27), the oil pump inlet (7) being connected to the oil pump outlet (6) via the oil pump, the oil pump outlet (6) passing through the oil pump mounting surface (27) to the oil pan mounting surface (11), and the oil pump outlet (6) being located on one side of the hydraulic valve plate mounting surface (8); The coarse filter oil passage comprises a coarse filter oil outlet (10) and a coarse filter, the coarse filter oil outlet (10) passes through from the oil pump mounting surface (27) to the oil pan mounting surface (11), the coarse filter oil outlet (10) located on the oil pump mounting surface (27) is connected to the oil pump oil inlet (7), the coarse filter oil outlet (10) located on the oil pan mounting surface (11) is connected to the outlet of the coarse filter, the inlet of the coarse filter is connected to the oil pan mounting surface (11), and the coarse filter oil outlet (10) located on the oil pan mounting surface (11) is arranged on a side of the oil pump oil outlet (6) away from the hydraulic valve plate mounting surface (8); The fine filter oil passage comprises a fine filter oil outlet (9) and a fine filter, wherein the fine filter oil outlet (9) is arranged on the oil pan mounting surface (11), the fine filter oil outlet (9) is located on a side of the oil pump oil outlet (6) close to the hydraulic valve plate mounting surface (8), one end of the fine filter oil outlet (9) is connected to the outlet of the fine filter, the other end of the fine filter oil outlet (9) is connected to the hydraulic valve plate mounting surface (8), and the inlet of the fine filter is connected to the oil pump oil outlet (6); The oil enters the coarse filter oil passage, the oil supply oil passage and the fine filter oil passage in sequence through the oil pan, and enters the hydraulic valve plate through the fine filter oil passage. Specifically, the oil includes: The oil in the oil pan enters the coarse filter through the inlet of the coarse filter for coarse filtration. The coarsely filtered oil enters the coarse filter outlet (10) and the oil pump inlet (7) in sequence through the outlet of the coarse filter. After entering the oil pump through the oil pump inlet (7), it flows out through the oil pump outlet (6). After flowing out of the oil pump outlet (6), the oil enters the fine filter through the inlet of the fine filter for fine filtration. The finely filtered oil enters the fine filter outlet (9) through the outlet of the fine filter and enters the hydraulic valve plate through the fine filter outlet (9).

10. The method for operating a torque converter housing of a hydraulic transmission module according to claim 8, characterized in that: The working oil passage comprises an outlet torque converter oil passage (4) and an inlet torque converter oil passage (5), one end of the outlet torque converter oil passage (4) and the inlet torque converter oil passage (5) are respectively connected to the oil distribution plate mounting surface (29), and the other end of the outlet torque converter oil passage (4) and the inlet torque converter oil passage (5) are respectively connected to the hydraulic valve plate mounting surface (8); The cooling oil circuit includes a housing oil inlet (13), an oil cooler, and a housing oil outlet (14). The housing oil inlet (13) and the housing oil outlet (14) are arranged on the outside of the torque converter housing (1) on one side close to the working oil passage. The housing oil inlet (13) is arranged at the bottom of the housing oil outlet (14). One end of the housing oil inlet (13) is connected to the oil pan mounting surface (11), and the other end of the housing oil inlet (13) is connected to the outlet of the oil cooler. One end of the housing oil outlet (14) is connected to the housing oil passage (2), and the other end of the housing oil outlet (14) is connected to the inlet of the oil cooler. Another part of the oil of the hydraulic valve plate enters the working oil channel, enters the housing oil channel (2) and the cooling oil channel in sequence through the working oil channel, and flows back to the oil pan through the cooling oil channel, specifically including: Another part of the oil in the hydraulic valve plate enters the torque converter through the torque converter oil passage (5) and then flows back to the hydraulic valve plate through the torque converter oil passage (4). The oil flowing back to the hydraulic valve plate enters the housing oil outlet (14) through the housing oil passage (2). The oil entering the housing oil outlet (14) enters the oil cooler through the inlet of the oil cooler for cooling. The cooled oil enters the housing oil inlet (13) through the outlet of the cooler. The oil entering the housing oil inlet (13) flows back to the oil pan.

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