Microcomputer hydraulic transmission control device of diesel locomotive
By introducing a hydraulic transmission oil cooling mechanism consisting of a cooling box, an oil pump, a serpentine heat pipe and a semiconductor refrigerator into the microcomputer transmission control device of a diesel locomotive, the problem of high temperature of the hydraulic transmission oil is solved, rapid cooling and purification effects are achieved, and the stability of the device is ensured.
Patent Information
- Application Number
- CN202422219267.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the existing diesel locomotive microcomputer-driven hydraulic transmission control device, the hydraulic transmission oil generates high temperature due to continuous work during operation, resulting in low cooling efficiency and affecting the stability of the device.
A hydraulic transmission oil cooling mechanism is adopted, including a cooling box, an oil pump, a serpentine heat pipe, a semiconductor refrigerator and a filter component. The hydraulic transmission oil is pumped by the oil pump, the serpentine heat pipe is used to transfer heat to the coolant, the semiconductor refrigerator cools the coolant, and the filter component intercepts metal impurities to achieve rapid cooling and purification.
It achieves rapid and effective cooling of the hydraulic transmission oil, avoids high temperature, ensures stable and reliable operation of the device, and purifies the hydraulic transmission oil to prevent the influence of metal impurities.
Smart Images
Figure CN223318373U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of diesel locomotives, and in particular to a microcomputer hydraulic transmission control device for diesel locomotives. Background Art
[0002] A diesel locomotive uses an internal combustion engine as its prime mover, with its wheels driven by a hydraulic transmission. This mechanism utilizes fuel combustion within the cylinders, converting heat energy into mechanical energy output by the crankshaft. This energy is not used to directly drive the wheels, but rather is converted by a hydraulic transmission control device into mechanical energy suitable for the locomotive's traction characteristics. This energy is then driven by the running gear to rotate the locomotive's wheels on the track. The hydraulic transmission control device is a non-rigid transmission consisting of several impellers. This device converts mechanical energy into kinetic energy of a fluid, and then back into mechanical energy, functioning as an energy transfer mechanism. The hydraulic transmission control device offers the advantages of automatic adaptability, vibration resistance, and isolation. It also provides overload protection, automatic coordination, and load distribution.
[0003] In the related art, during the operation of the hydraulic transmission control device used in the microcomputer transmission of a diesel locomotive, the hydraulic transmission oil inside it generates heat due to the continuous flow and work, causing the temperature of the hydraulic transmission oil to gradually increase. However, most hydraulic transmission control devices do not have the function of quickly cooling the hydraulic transmission oil. Usually, the heat in the hydraulic transmission oil is dissipated through natural heat transfer from the oil pan. This method results in relatively low cooling efficiency of the hydraulic transmission oil, which can easily cause the hydraulic transmission oil to generate high temperature, affecting the stable and reliable operation of the hydraulic transmission control device.
[0004] Therefore, we propose a microcomputer hydraulic transmission control device for diesel locomotive to solve the above problems. Utility Model Content
[0005] The purpose of the present application is to provide a microcomputer hydraulic transmission control device for a diesel locomotive, which has the function of quickly and effectively cooling the hydraulic transmission oil in the hydraulic transmission control device body, ensuring that the hydraulic transmission oil inside the hydraulic transmission control device body is not prone to high temperature during the operation of the hydraulic transmission control device body, ensuring the stable and reliable operation of the hydraulic transmission control device body, and in the process of cooling the hydraulic transmission oil, it can intercept and filter metal impurities and debris in the hydraulic transmission oil, thereby achieving the effect of effectively purifying the hydraulic transmission oil.
[0006] The above-mentioned technical objectives of the present application are achieved through the following technical solutions: a diesel locomotive microcomputer hydraulic transmission control device, comprising a hydraulic transmission control device body for use in diesel locomotive microcomputer transmission and a hydraulic transmission oil cooling mechanism arranged on one side of the hydraulic transmission control device body, the hydraulic transmission control device body containing hydraulic transmission oil, a bracket fixedly mounted on the right outer wall of the hydraulic transmission control device body, the hydraulic transmission oil cooling mechanism being arranged on the bracket, and the hydraulic transmission oil cooling mechanism being used to cool the hydraulic transmission oil in the hydraulic transmission control device body.
[0007] By adopting the above technical solution, the bracket is used to support the hydraulic transmission oil cooling mechanism, and the hydraulic transmission oil cooling mechanism is used to cool the hydraulic transmission oil in the hydraulic transmission control device body, that is, it can ensure that the hydraulic transmission oil inside the hydraulic transmission control device body is not prone to high temperature during operation, thereby ensuring stable and reliable operation of the hydraulic transmission control device body.
[0008] The present application is further configured as follows: the hydraulic transmission oil cooling mechanism includes a cooling box, an oil pump, an oil suction pipe, an oil outlet pipe, an oil inlet pipe, a serpentine heat conducting pipe, an oil return pipe, a coolant, a semiconductor refrigerator and a filter assembly; the cooling box is fixedly mounted on a bracket; the oil pump is fixedly mounted on the left outer wall of the cooling box; one end of the oil suction pipe is fixedly connected to the suction end of the oil pump; the end of the oil suction pipe away from the oil pump extends into the body of the hydraulic transmission control device and is immersed in the hydraulic transmission oil; one end of the oil outlet pipe is fixedly connected to the discharge end of the oil pump; the serpentine heat conducting pipe is fixedly connected to the discharge end of the oil pump; The pipe is fixedly installed in the cooling box, and the coolant is stored in the cooling box. The oil inlet pipe and the oil return pipe are fixedly connected to the two ends of the serpentine heat pipe respectively. One end of the oil inlet pipe extends outside the cooling box, and one end of the oil return pipe extends into the hydraulic transmission control device body and is located above the hydraulic transmission oil. The semiconductor refrigerator is fixedly installed at the bottom of the cooling box, and the cooling end of the semiconductor refrigerator extends into the cooling box and is immersed in the coolant. The filter assembly is arranged between the oil outlet pipe and the oil inlet pipe. The filter assembly is used to connect and filter metal impurities and debris carried in the hydraulic transmission oil.
[0009] By adopting the above technical solution, the oil pump is used to pump the hydraulic transmission oil inside the hydraulic transmission control device body, and the filter component can be used to intercept and filter the metal impurities and debris carried in the hydraulic transmission oil, thereby achieving the effect of filtering and purifying the hydraulic transmission oil, thereby preventing the metal impurities and debris from entering the serpentine heat conducting pipe and preventing the metal impurities and debris from flowing back into the hydraulic transmission control device body. By utilizing the flow process of the hydraulic transmission oil inside the serpentine heat conducting pipe, the heat in the hydraulic transmission oil can be transferred to the coolant through the pipe wall of the serpentine heat conducting pipe, and then the coolant can absorb the heat in the hydraulic transmission oil to achieve the effect of cooling the hydraulic transmission oil. The semiconductor refrigerator can be used to cool the coolant, that is, the coolant can be kept in a low temperature state, which can more effectively absorb the heat inside the hydraulic transmission oil and ensure that the cooling of the hydraulic transmission oil is effective.
[0010] The present application is further configured as follows: the liquid level of the coolant is higher than the top of the serpentine heat pipe.
[0011] By adopting the above technical solution, the serpentine heat pipe can be completely immersed in the coolant, ensuring effective and comprehensive cooling of the hydraulic transmission oil.
[0012] The present application is further configured as follows: a plurality of evenly distributed metal heat-conducting strips are fixedly mounted on the outer tube wall of the serpentine heat-conducting tube, and both ends of the metal heat-conducting strips are fixedly connected to the inner walls on both sides of the cooling box respectively.
[0013] By adopting the above technical solution, multiple metal heat-conducting strips can be used to increase the heat transfer area, so that more heat in the hydraulic transmission oil can be transferred to the coolant, providing a cooling effect on the hydraulic transmission oil. In addition, the two ends of the metal heat-conducting strips are fixedly connected to the inner wall of the cooling box, which can improve the stability of the serpentine heat pipe.
[0014] The present application is further configured as follows: the filter assembly includes a filter housing, a filter element and a shell cover, the filter housing is located between the oil outlet pipe and the oil inlet pipe, the filter element is detachably fixed in the filter housing, the rear end of the filter element is an open structure, the rear end wall of the filter element is in contact with the rear inner wall of the filter housing, the end of the oil outlet pipe away from the oil pump passes through the rear wall of the filter housing and extends into the filter element, the end of the oil inlet pipe located outside the cooling box extends into the filter housing and is located above the filter element, the front side of the filter housing is an open structure, and the shell cover is fixed to the front outer wall of the filter housing by screws.
[0015] By adopting the above technical solution, the filter element can be used to intercept and filter the metal impurities and debris in the hydraulic transmission oil, so that the metal impurities and debris remain in the internal space of the filter element. The shell cover is used to seal the front opening of the filter shell to prevent the hydraulic transmission oil from leaking.
[0016] The present application is further configured as follows: a positioning ring is fixedly mounted on the rear inner wall of the filter housing, and the rear end of the filter element is slidably mounted in the positioning ring.
[0017] By adopting the above technical solution, the installation position of the filter element can be positioned.
[0018] The present application is further configured as follows: a pressure cover is fixedly mounted on the rear side wall of the shell cover, and the pressure cover is in conflict with the front end of the filter element.
[0019] By adopting the above technical solution, the filter element can be pressed tightly into the filter housing by using the pressure cover, thereby improving the stability of the filter element during assembly, fixation and use.
[0020] The present application is further configured as follows: the diameter of the gland is smaller than the inner diameter of the filter housing, and the diameter of the gland is larger than the outer diameter of the filter element.
[0021] By adopting the above technical solution, it is ensured that the pressure cover can smoothly enter the filter housing and can fully press the filter element.
[0022] The present application is further configured as follows: a positioning groove is provided on the rear side wall of the pressure cover, and the front end of the filter element is slidably installed in the positioning groove.
[0023] By adopting the above technical solution, the stability of the filter element during assembly, fixation and use can be further improved.
[0024] The present application is further configured as follows: a bearing seat is fixedly mounted on the left outer wall of the cooling box, and the filter housing is fixedly mounted on the bearing seat.
[0025] By adopting the above technical solution, the stability of the installation and fixation of the filter housing is enhanced.
[0026] This application includes at least one of the following beneficial technical effects:
[0027] 1. The present application utilizes a hydraulic transmission oil cooling mechanism consisting of a cooling box, an oil pump, an oil suction pipe, an oil outlet pipe, an oil inlet pipe, a serpentine heat conducting pipe, an oil return pipe, a coolant, a semiconductor refrigerator, and a filter assembly to quickly and effectively cool the hydraulic transmission oil in the hydraulic transmission control device body, thereby ensuring that the hydraulic transmission oil in the hydraulic transmission control device body does not easily generate high temperatures during operation, thereby ensuring stable and reliable operation of the hydraulic transmission control device body.
[0028] 2. This application utilizes a filter assembly consisting of a filter housing, a filter element, and a shell cover to intercept and filter metal impurities and debris in the hydraulic transmission oil during the cooling process of the hydraulic transmission oil, thereby effectively purifying the hydraulic transmission oil.
[0029] 3. The present application utilizes the cooperation of the positioning ring, the shell cover, the pressure cover and the positioning groove provided on the pressure cover to facilitate the convenient disassembly and assembly of the filter element, thereby facilitating the cleaning or replacement of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.
[0032] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.
[0033] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.
[0034] Figure 4 It is a schematic diagram of the left-side sectional structure of the filter component.
[0035] In the figure, 1. Hydraulic transmission control device body; 2. Bracket; 3. Cooling box; 4. Oil pump; 5. Oil suction pipe; 6. Oil outlet pipe; 7. Oil inlet pipe; 8. Serpentine heat pipe; 9. Oil return pipe; 10. Coolant; 11. Semiconductor refrigerator; 12. Metal heat conductive strip; 13. Filter housing; 14. Filter element; 15. Shell cover; 16. Positioning ring; 17. Pressure cover; 18. Support seat. DETAILED DESCRIPTION
[0036] The technical solutions of this application will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of this application without creative effort are also within the scope of protection of this application.
[0037] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present application provides a microcomputer hydraulic transmission control device for a diesel locomotive, comprising a hydraulic transmission control device body 1 for use in a microcomputer transmission of a diesel locomotive and a hydraulic transmission oil cooling mechanism provided on one side of the hydraulic transmission control device body 1. The hydraulic transmission control device body 1 contains hydraulic transmission oil, wherein:
[0038] A bracket 2 is fixedly mounted on the right outer wall of the hydraulic transmission control device body 1, and a hydraulic transmission oil cooling mechanism is arranged on the bracket 2. The hydraulic transmission oil cooling mechanism is used to cool the hydraulic transmission oil in the hydraulic transmission control device body 1. The hydraulic transmission oil cooling mechanism includes a cooling box 3, an oil pump 4, an oil suction pipe 5, an oil outlet pipe 6, an oil inlet pipe 7, a serpentine heat conducting pipe 8, an oil return pipe 9, a coolant 10, a semiconductor refrigerator 11 and a filter assembly. The cooling box 3 is fixedly mounted on the bracket 2, and the oil pump 4 is fixedly mounted on the left outer wall of the cooling box 3. One end of the oil suction pipe 5 is fixedly connected to the suction end of the oil pump 4, and the end of the oil suction pipe 5 away from the oil pump 4 extends into the hydraulic transmission control device body 1 and is immersed Immersed in the hydraulic transmission oil, one end of the oil outlet pipe 6 is fixedly connected to the discharge end of the oil pump 4, the serpentine heat pipe 8 is fixedly installed in the cooling box 3, and the coolant 10 is stored in the cooling box 3. The oil inlet pipe 7 and the oil return pipe 9 are respectively fixedly connected to the two ends of the serpentine heat pipe 8, one end of the oil inlet pipe 7 extends to the outside of the cooling box 3, and one end of the oil return pipe 9 extends to the hydraulic transmission control device body 1 and is located above the hydraulic transmission oil. The semiconductor refrigerator 11 is fixedly installed at the bottom of the cooling box 3, and the cooling end of the semiconductor refrigerator 11 extends into the cooling box 3 and is immersed in the coolant 10. The filter assembly is arranged between the oil outlet pipe 6 and the oil inlet pipe 7, and the filter assembly is used to connect and filter the metal impurities and debris carried in the hydraulic transmission oil.
[0039] In this embodiment, the above-mentioned filter assembly includes a filter housing 13, a filter element 14 and a shell cover 15. The filter housing 13 is located between the oil outlet pipe 6 and the oil inlet pipe 7. The filter element 14 is detachably fixedly installed in the filter housing 13. The rear end of the filter element 14 is an open structure. The rear end wall of the filter element 14 abuts against the rear inner wall of the filter housing 13. The end of the oil outlet pipe 6 away from the oil pump 4 passes through the rear wall of the filter housing 13 and extends into the filter element 14. The end of the oil inlet pipe 7 located outside the cooling box 3 extends into the filter housing 13 and is located above the filter element 14. The front side of the filter housing 13 is an open structure, and the shell cover 15 is fixedly installed on the front outer wall of the filter housing 13 by screws.
[0040] In this embodiment, the liquid level of the coolant 10 is higher than the top of the serpentine heat pipe 8 .
[0041] In this embodiment, a plurality of evenly arranged metal heat-conducting strips 12 are fixedly installed on the outer tube wall of the serpentine heat-conducting tube 8, and the two ends of the metal heat-conducting strips 12 are respectively fixedly connected to the inner walls on both sides of the cooling box 3. It should be noted that the semiconductor cooler 11 and the plurality of metal heat-conducting strips 12 can be made of copper tubes or aluminum alloy tubes with good thermal conductivity, and the semiconductor cooler 11 and the plurality of metal heat-conducting strips 12 can be fixed by welding.
[0042] In this embodiment, a positioning ring 16 is fixedly mounted on the rear inner wall of the filter housing 13 , and the rear end of the filter element 14 is slidably mounted in the positioning ring 16 .
[0043] In this embodiment, a pressure cap 17 is fixedly installed on the rear side wall of the shell cover 15, and the pressure cap 17 conflicts with the front end of the filter element 14. The diameter of the pressure cap 17 is smaller than the inner diameter of the filter housing 13, and the diameter of the pressure cap 17 is larger than the outer diameter of the filter element 14. A positioning groove is provided on the rear side wall of the pressure cap 17, and the front end of the filter element 14 is slidably installed in the positioning groove.
[0044] In this embodiment, a bearing seat 18 is fixedly mounted on the left outer wall of the cooling box 3 , and the filter housing 13 is fixedly mounted on the bearing seat 18 .
[0045] In this embodiment, it should be noted that the oil pump 4 and the semiconductor refrigerator 11 can be purchased on the market or customized in the factory. The oil pump 4 and the semiconductor refrigerator 11 are equipped with a power supply, and their line connection method and control method are mature technologies in this field and are fully disclosed, so they will not be described in detail in this article.
[0046] Through the above structure, the diesel locomotive microcomputer hydraulic transmission control device provided by the present application can quickly and effectively cool the hydraulic transmission oil in the hydraulic transmission control device body 1 when in use, ensuring that the hydraulic transmission oil inside the hydraulic transmission control device body 1 is not prone to high temperature during the operation of the hydraulic transmission control device body 1, ensuring the stable and reliable operation of the hydraulic transmission control device body 1, and in the process of cooling the hydraulic transmission oil, it can intercept and filter metal impurities and debris in the hydraulic transmission oil, thereby achieving the effect of effectively purifying the hydraulic transmission oil. In specific operation, when the hydraulic transmission control device body 1 is running, the oil pump 4 and the semiconductor refrigerator 11 are turned on and run at the same time, and the semiconductor refrigerator 11 can be used to cool the coolant 10 so that the coolant 10 is in a low temperature state. The operation of the oil pump 4 can make the hydraulic transmission oil inside the hydraulic transmission control device body 1 pass through the oil suction pipe 5, the oil pump 4 and the oil outlet pipe 6 in sequence into the filter element 14, and the filter element 14 can be used to filter the hydraulic transmission oil. The metal impurities and debris carried in the transmission oil are intercepted and filtered, so that the metal impurities and debris remain on the inner wall of the filter element 14. The filtered and purified hydraulic transmission oil passes through the filter element on the filter element 14 and then flows back to the hydraulic transmission control device body 1 through the oil inlet pipe 7, the serpentine heat pipe 8 and the oil return pipe 9 in sequence. By utilizing the flow process of the hydraulic transmission oil inside the serpentine heat pipe 8, the heat in the hydraulic transmission oil can be transferred to the coolant 10. The coolant 10 can absorb the heat in the hydraulic transmission oil, thereby achieving the effect of cooling the hydraulic transmission oil. As a result, the hydraulic transmission oil flowing back to the hydraulic transmission control device body 1 through the oil return pipe 9 is the cooled hydraulic transmission control oil. When the oil pump 4 and the semiconductor cooler 11 are in continuous operation, the hydraulic transmission oil in the hydraulic transmission control device body 1 can be effectively cooled. When the hydraulic transmission oil in the hydraulic transmission control device body 1 does not need to be cooled, the oil pump 4 and the semiconductor cooler 11 can be turned off.
[0047] When the filter element 14 needs to be cleaned or replaced, first remove the multiple screws on the shell cover 15, then take out the shell cover 15, and then the filter element 14 can be pulled out from the filter housing 13, and then the filter element 14 can be cleaned or replaced. When the cleaned filter element 14 or a new filter element 14 is installed back into the filter housing 13, first face the open end of the filter element 14 towards the filter housing 13, then push the filter element 14 into the filter housing 13 and insert it into the positioning ring 16. At this time, one end of the oil outlet pipe 6 is inserted into the filter element 14, and then the shell cover 15 is installed back on the front side wall of the filter housing 13 so that the front end of the filter element 14 is tightly inserted into the positioning groove on the shell cover 15, and finally use multiple screws to tighten and fix the shell cover 15 on the front side wall of the filter housing 13, thus completing the convenient disassembly and assembly operation of the filter element 14.
Claims
1. A microcomputer hydraulic transmission control device for a diesel locomotive, characterized in that: The invention comprises a hydraulic transmission control device body (1) for use in a microcomputer transmission of a diesel locomotive and a hydraulic transmission oil cooling mechanism arranged on one side of the hydraulic transmission control device body (1); the hydraulic transmission oil is contained in the hydraulic transmission control device body (1); a bracket (2) is fixedly mounted on the right outer wall of the hydraulic transmission control device body (1); the hydraulic transmission oil cooling mechanism is arranged on the bracket (2); and the hydraulic transmission oil cooling mechanism is used to cool the hydraulic transmission oil in the hydraulic transmission control device body (1).
2. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 1, characterized in that: The hydraulic transmission oil cooling mechanism comprises a cooling box (3), an oil pump (4), an oil suction pipe (5), an oil outlet pipe (6), an oil inlet pipe (7), a serpentine heat conducting pipe (8), an oil return pipe (9), a coolant (10), a semiconductor refrigerator (11) and a filter assembly. The cooling box (3) is fixedly mounted on the bracket (2), the oil pump (4) is fixedly mounted on the left outer wall of the cooling box (3), one end of the oil suction pipe (5) is fixedly connected to the suction end of the oil pump (4), one end of the oil suction pipe (5) away from the oil pump (4) extends into the hydraulic transmission control device body (1) and is immersed in the hydraulic transmission oil, one end of the oil outlet pipe (6) is fixedly connected to the discharge end of the oil pump (4), the serpentine heat conducting pipe (8) is fixedly mounted on the left outer wall of the cooling box (3), one end of the oil suction pipe (5) is fixedly connected to the suction end of the oil pump (4), one end of the oil suction pipe (5) is away from the oil pump (4) and extends into the hydraulic transmission control device body (1) and is immersed in the hydraulic transmission oil, one end of the oil outlet pipe (6) is fixedly connected to the discharge end of the oil pump (4), and the serpentine heat conducting pipe (8) is fixedly mounted on the left outer wall of the cooling box (3). The cooling liquid (10) is stored in the cooling box (3), the oil inlet pipe (7) and the oil return pipe (9) are fixedly connected to the two ends of the serpentine heat pipe (8), one end of the oil inlet pipe (7) extends to the outside of the cooling box (3), and one end of the oil return pipe (9) extends to the inside of the hydraulic transmission control device body (1) and is located above the hydraulic transmission oil. The semiconductor refrigerator (11) is fixedly installed at the bottom of the cooling box (3), and the cooling end of the semiconductor refrigerator (11) extends to the cooling box (3) and is immersed in the cooling liquid (10). The filter component is arranged between the oil outlet pipe (6) and the oil inlet pipe (7), and the filter component is used to connect and filter metal impurities and debris carried in the hydraulic transmission oil.
3. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 2, characterized in that: The liquid level of the cooling liquid (10) is higher than the top of the serpentine heat conducting pipe (8).
4. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 2, characterized in that: A plurality of evenly arranged metal heat conducting strips (12) are fixedly mounted on the outer tube wall of the serpentine heat conducting tube (8), and the two ends of the metal heat conducting strips (12) are respectively fixedly connected to the inner walls on both sides of the cooling box (3).
5. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 2, characterized in that: The filter assembly comprises a filter housing (13), a filter element (14) and a housing cover (15). The filter housing (13) is located between the oil outlet pipe (6) and the oil inlet pipe (7). The filter element (14) is detachably fixedly mounted in the filter housing (13). The rear end of the filter element (14) is an open structure. The rear end wall of the filter element (14) abuts against the rear inner wall of the filter housing (13). The end of the oil outlet pipe (6) away from the oil pump (4) passes through the rear wall of the filter housing (13) and extends into the filter element (14). The end of the oil inlet pipe (7) located outside the cooling box (3) extends into the filter housing (13) and is located above the filter element (14). The front side of the filter housing (13) is an open structure. The housing cover (15) is fixedly mounted on the front outer wall of the filter housing (13) by screws.
6. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 5, characterized in that: A positioning ring (16) is fixedly mounted on the rear inner wall of the filter housing (13), and the rear end of the filter element (14) is slidably mounted in the positioning ring (16).
7. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 5, characterized in that: A pressure cover (17) is fixedly mounted on the rear side wall of the shell cover (15), and the pressure cover (17) contacts the front end of the filter element (14).
8. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 7, characterized in that: The diameter of the pressure cover (17) is smaller than the inner diameter of the filter housing (13), and the diameter of the pressure cover (17) is larger than the outer diameter of the filter element (14).
9. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 7, characterized in that: A positioning groove is provided on the rear side wall of the pressure cover (17), and the front end of the filter element (14) is slidably installed in the positioning groove.
10. The microcomputer hydraulic transmission control device for a diesel locomotive according to claim 7, characterized in that: A bearing seat (18) is fixedly mounted on the left outer wall of the cooling box (3), and the filter housing (13) is fixedly mounted on the bearing seat (18).