Oil cooler structure for mine truck transmission

Abstract

This utility model provides an oil cooler structure for a mining truck gearbox, which improves the heat dissipation capacity of the gearbox lubricating oil, thereby solving the problem of high temperature in the gearbox and extending its service life. It includes: a gearbox end cover with several positioning holes and an open liquid-cooling flow groove, the inlet of which is connected to a liquid inlet and the outlet of which is connected to a liquid outlet; an integrated oil pump and oil-cooling cover plate, including an oil pump assembly cover plate and an oil flow channel, the outer periphery of which is also provided with several corresponding first mounting holes, the oil flow channel including an oil inlet channel and an oil outlet channel, the oil inlet channel being connected to an exposed oil inlet and the oil outlet channel being connected to an exposed oil outlet; and an integrated oil pump and oil-cooling housing, including an oil pump assembly housing and a liquid-cooling flow channel groove, the two end faces of which are open, the outer periphery of which is also provided with several corresponding second mounting holes.

Description

Technical Field

[0001] This utility model relates to the technical field of lubricating oil cooling, specifically to an oil cooler structure for a mining truck gearbox. Background Technology

[0002] Existing mining truck gearboxes mostly draw oil directly from the bottom oil passage through an oil pump, and then pump it into the lubrication oil passage of the housing through an external oil passage. In actual operation, the lubricating oil is cooled by the air generated during vehicle operation through a pipe exposed to the air.

[0003] In actual use, mining truck gearboxes are often subjected to harsh conditions such as heavy-load climbing. Due to the heavy load and slow climbing speed, the power of the gearbox relying solely on air cooling is relatively small, which often leads to problems such as excessively high oil temperature, resulting in a reduction in the gearbox's lifespan. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an oil cooler structure for mining truck gearboxes, which improves the heat dissipation capacity of the gearbox lubricating oil, thereby solving the problem of high gearbox temperature and extending the service life of the gearbox.

[0005] An oil cooler structure for a mining truck gearbox, characterized in that it comprises: The gearbox end cover is provided with several positioning holes and a liquid-cooled flow groove with an open end face. The inlet of the liquid-cooled flow groove is connected to a liquid inlet, and the outlet of the liquid-cooled flow groove is connected to a liquid outlet. An integrated oil pump and oil cooler cover plate includes an oil pump assembly cover plate and an oil flow channel. The outer periphery of the integrated oil pump and oil cooler cover plate is also provided with several corresponding first mounting holes. The oil flow channel includes an oil inlet channel and an oil outlet channel. The oil inlet channel is connected to an exposed oil inlet port, and the oil outlet channel is connected to an exposed oil outlet port. And an integrated oil pump and oil cooling housing, which includes an oil pump assembly housing and a liquid cooling channel groove, wherein the two ends of the liquid cooling channel groove are open, and the outer periphery of the integrated oil pump and oil cooling housing is also provided with several corresponding second mounting holes. The integrated oil pump and oil cooler cover plate is press-fitted onto the exposed end face of the integrated oil pump and oil cooler housing, and the integrated oil pump and oil cooler housing is press-fitted onto the end face of the gearbox end cover. The oil pump assembly housing and the oil pump assembly cover plate are aligned and assembled to form an oil pump. The oil inlet channel delivers oil into the inner cavity of the oil pump, and the oil pump delivers oil out of the oil pump through the oil outlet channel. The cover plate corresponding to the surface area of ​​the oil flow channel is fitted onto the exposed end face of the liquid cooling channel groove. The inner surface of the liquid cooling channel groove is connected to the corresponding end face of the liquid cooling flow groove.

[0006] Its further features are: The trajectory of the liquid cooling channel groove is modeled after the trajectory of the liquid cooling flow groove, which ensures that the coolant fully contacts the corresponding cover plate position of the oil flow channel, thus ensuring sufficient and reliable cooling. The fastening bolts pass through the first mounting hole and the second mounting hole respectively and are then fixed in the positioning hole, so that the oil pump and oil cooler integrated cover plate, the oil pump and oil cooler integrated housing and the gearbox end cover can be reliably assembled. A gasket is provided in the area between the liquid cooling channel groove of the integrated oil pump housing and the oil flow channel of the gearbox end cover. A sealing gasket is provided between the cover plate corresponding to the liquid cooling channel groove and the oil flow channel surface area of ​​the integrated oil pump housing to ensure that the coolant does not leak. An oil pump end cover sealing gasket is provided between the oil pump assembly housing and the oil pump assembly cover plate to ensure reliable sealing of the oil pump components. The space formed by the assembly of the pump housing and the oil pump assembly cover plate contains the oil pump assembly and the inner cavity of the oil pump.

[0007] With the solution of this utility model, the oil is powered by the oil pump, drawing oil from the bottom of the gearbox into the oil inlet. Then, the oil flows into the inner cavity along the oil inlet channel, and is then pumped out through the oil outlet via the oil outlet channel. The heat of the lubricating oil is dissipated by the area in contact with the coolant through the integrated oil pump and oil-cooled cover. The coolant continuously circulates through the liquid-cooled flow channel groove and the liquid-cooled flow groove, thus providing the lubricating oil with additional liquid cooling on top of air cooling. This enhances the heat dissipation capacity of the gearbox lubricating oil, thereby solving the problem of high gearbox temperature and improving the service life of the gearbox. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an exploded perspective view of the present invention; Figure 3 This is a side view structural diagram of the present invention (with the gearbox end cover removed). The names corresponding to the serial numbers in the diagram are as follows: Transmission end cover 10, positioning hole 11, liquid cooling flow groove 12, liquid inlet 13, liquid outlet 14, oil pump and oil cooling integrated cover plate 20, oil pump assembly cover plate 201, oil flow channel 202, first mounting hole 21, oil inlet channel 22, oil outlet channel 23, oil inlet 24, oil outlet 25, oil pump and oil cooling integrated housing 30, oil pump assembly housing 301, liquid cooling flow channel groove 302, second mounting hole 31, overflow interface 32, oil pump 40, fastening bolt 50; Gasket 1, sealing gasket 2, oil pump end cover sealing gasket 3, overflow valve core 4, spring 5. Detailed Implementation

[0009] A structure for an oil cooler used in a mining truck gearbox, see Figures 1-3 It includes a gearbox end cover 10, an integrated oil pump and oil cooler cover 20, and an integrated oil pump and oil cooler housing 30. The gearbox end cover 10 is provided with a number of positioning holes 11 and a liquid-cooled flow groove 12 with an open end face. The inlet of the liquid-cooled flow groove 12 is connected to a liquid inlet 13, and the outlet of the liquid-cooled flow groove 12 is connected to a liquid outlet 14. The integrated oil pump and oil cooler cover plate 20 includes an oil pump assembly cover plate 201 and an oil flow channel 202. The outer periphery of the integrated oil pump and oil cooler cover plate 20 is also provided with a number of corresponding first mounting holes 21. The oil flow channel 202 includes an oil inlet channel 22 and an oil outlet channel 23. The oil inlet channel 23 is connected to an exposed oil inlet port 24, and the oil outlet channel 23 is connected to an exposed oil outlet port 25. The integrated oil pump and oil cooling housing 30 includes an oil pump assembly housing 301 and a liquid cooling channel groove 302. The two ends of the liquid cooling channel groove 302 are open. The outer periphery of the integrated oil pump and oil cooling housing 30 is also provided with a number of corresponding second mounting holes 31. The oil pump and oil-cooling integrated cover plate 20 is press-fitted onto the exposed end face of the oil pump and oil-cooling integrated housing 30, and the oil pump and oil-cooling integrated housing 30 is press-fitted onto the end face of the gearbox end cover 10. The oil pump assembly housing 301 and the oil pump assembly cover plate 201 are aligned and assembled to form the oil pump 40. The oil inlet channel 22 sends oil into the inner cavity of the oil pump 40, and the oil pump 40 sends the oil out of the oil pump through the oil outlet channel 23. The cover plate corresponding to the surface area of ​​the oil flow channel 202 is fitted onto the exposed end face of the liquid cooling channel groove 302. The inner surface of the liquid cooling channel groove 302 is connected to the corresponding end face of the liquid cooling flow groove 12.

[0010] In a specific embodiment, the trajectory of the liquid cooling channel groove 302 is modeled after the trajectory of the liquid cooling flow groove 12, which ensures that the coolant fully contacts the corresponding cover plate position of the oil flow channel, thus ensuring sufficient and reliable cooling. The fastening bolts 50 pass through the first mounting hole 21 and the second mounting hole 31 respectively and are fixed in the positioning hole 11, so that the oil pump oil-cooling integrated cover plate 20, the oil pump oil-cooling integrated housing 30 and the gearbox end cover 10 can be reliably assembled.

[0011] A gasket 1 is provided in the area between the liquid cooling channel groove 302 of the oil pump and oil cooling integrated housing 30 and the oil flow channel 12 of the gearbox end cover 10, which makes the flow of coolant stable and reliable. A sealing gasket 2 is provided between the cover plate corresponding to the surface area of ​​the liquid cooling channel groove 302 and the oil flow channel 202 of the integrated oil pump and oil cooling housing 30 to ensure that the coolant does not leak. An oil pump end cover sealing gasket 3 is provided between the oil pump assembly housing 301 and the oil pump assembly cover plate 201 to ensure that the components of the oil pump 40 are reliably sealed. The space formed by the assembly of the pump housing 301 and the oil pump assembly cover plate 201 contains the oil pump assembly and the inner cavity of the oil pump. The inner cavity of the oil pump 40 is also provided with an overflow port 32 corresponding to the oil pump oil-cooled integrated housing 30. The overflow port 32 is provided with an overflow valve core 4 and a spring 5.

[0012] Its working principle is as follows: The oil is powered by the oil pump, which draws oil from the bottom of the transmission into the inlet. Then, the oil flows into the inner cavity along the inlet channel, and is then pumped out through the outlet channel by the oil pump. The heat of the lubricating oil is carried away by the area in contact with the coolant through the integrated oil pump and oil-cooled cover plate, thus completing the heat dissipation. The coolant continuously circulates through the liquid-cooled flow channel groove and the liquid-cooled flow groove, so that the lubricating oil has additional liquid cooling on the basis of air cooling. This improves the heat dissipation capacity of the transmission lubricating oil, thereby solving the problem of high transmission temperature and improving the service life of the transmission.

[0013] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0014] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure for an oil cooler in a mining truck gearbox, characterized in that, It includes: The gearbox end cover is provided with several positioning holes and a liquid-cooled flow groove with an open end face. The inlet of the liquid-cooled flow groove is connected to a liquid inlet, and the outlet of the liquid-cooled flow groove is connected to a liquid outlet. An integrated oil pump and oil cooler cover plate includes an oil pump assembly cover plate and an oil flow channel. The outer periphery of the integrated oil pump and oil cooler cover plate is also provided with several corresponding first mounting holes. The oil flow channel includes an oil inlet channel and an oil outlet channel. The oil inlet channel is connected to an exposed oil inlet port, and the oil outlet channel is connected to an exposed oil outlet port. And an integrated oil pump and oil cooling housing, which includes an oil pump assembly housing and a liquid cooling channel groove, wherein the two ends of the liquid cooling channel groove are open, and the outer periphery of the integrated oil pump and oil cooling housing is also provided with several corresponding second mounting holes. The integrated oil pump and oil cooler cover plate is press-fitted onto the exposed end face of the integrated oil pump and oil cooler housing, and the integrated oil pump and oil cooler housing is press-fitted onto the end face of the gearbox end cover. The oil pump assembly housing and the oil pump assembly cover plate are aligned and assembled to form an oil pump. The oil inlet channel delivers oil into the inner cavity of the oil pump, and the oil pump delivers oil out of the oil pump through the oil outlet channel. The cover plate corresponding to the surface area of ​​the oil flow channel is fitted onto the exposed end face of the liquid cooling channel groove, and the inner surface of the liquid cooling channel groove is connected to the corresponding end face of the liquid cooling flow groove.

2. The structure of an oil cooler for a mining truck gearbox according to claim 1, characterized in that: The trajectory of the liquid-cooled flow channel is modeled after the trajectory of the liquid-cooled flow groove.

3. The structure of an oil cooler for a mining truck gearbox according to claim 1, characterized in that: The fastening bolts pass through the first mounting hole and the second mounting hole respectively and are then fixed in the positioning hole.

4. The structure of an oil cooler for a mining truck gearbox according to claim 1, characterized in that: A gasket is provided in the area between the liquid cooling channel groove of the integrated oil pump housing and the oil flow channel of the gearbox end cover.

5. The structure of an oil cooler for a mining truck gearbox according to claim 1, characterized in that: A sealing gasket is provided between the cover plate corresponding to the liquid cooling channel groove and the oil flow channel surface area of ​​the integrated oil pump housing.

6. The structure of an oil cooler for a mining truck gearbox according to claim 1, characterized in that: An oil pump end cover sealing gasket is provided between the oil pump assembly housing and the oil pump assembly cover plate.

7. The structure of an oil cooler for a mining truck gearbox according to claim 1, characterized in that: The space formed by the assembly of the pump housing and the oil pump assembly cover plate contains the oil pump assembly and the inner cavity of the oil pump.

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