A support device for a gear box

Abstract

This utility model belongs to the technical field of gearbox auxiliary equipment, and particularly relates to a support device for gearboxes, including a main body, a leak-proof mechanism on the side of the main body, a circulation mechanism below the leak-proof mechanism, and a cooling mechanism on the back of the main body. This gearbox support device has leak-proof, circulation, and cooling mechanisms. The leak-proof mechanism prevents excessive lubricating oil from leaking from the bearings and contaminating various parts of the train, while reducing waste, preventing rust, and extending equipment life. The scraper can also recover leaked lubricating oil, improving resource utilization and reducing safety risks. The circulation mechanism allows the lubricating oil to continuously flow and remove heat, while the cooling mechanism maintains the appropriate viscosity of the oil. The cooled oil returns to lower the temperature of the reducer, ensuring transmission accuracy, reducing equipment failures, and improving processing stability and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gearbox auxiliary equipment technology, specifically a support device for gearboxes. Background Technology

[0002] In the railway transportation sector, the safe and stable operation of high-speed trains is of paramount importance. As the core component of the high-speed train's transmission system, the gearbox's performance directly affects the overall operational performance of the train. The gearbox support device serves as the foundation for ensuring the normal operation of the gearbox. Currently, traditional gearbox support devices have many defects. In terms of leakage prevention, there is a lack of effective protective measures, which leads to lubricating oil easily leaking from the bearings. This not only causes a large waste of lubricating oil and increases operating costs, but also causes the lubricating oil to contaminate other parts on the train. Contaminated parts are prone to rust and corrosion during long-term use, shortening the service life of the equipment. Frequent maintenance and replacement of parts further increase operating costs. At the same time, leaking lubricating oil may also affect the normal operation of critical components such as wheelsets, increasing safety hazards.

[0003] Traditional designs are also unsatisfactory in terms of heat dissipation and lubrication. The large amount of heat generated by friction between the components in the gearbox is difficult to dissipate effectively, causing the oil temperature to rise continuously. Excessive oil temperature will reduce the viscosity of the lubricating oil, making it impossible to form a stable oil film, which will aggravate component wear and even cause the oil film to rupture, seriously affecting the transmission accuracy. The decrease in transmission accuracy will then be fed back to the wheelset system, causing abnormal vibration and noise in the wheelset during operation. Therefore, it is urgent to improve a support device for gearboxes to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a support device for a gearbox to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support device for a gearbox, comprising a main body, an end cap fixedly mounted on the front of the main body by bolts, an observation window provided on the side of the main body, a protective cover fixedly mounted below the observation window, a cooling device fixedly mounted on the back of the main body, and a cooling cover fixedly mounted on the side of the cooling device; the support device for the gearbox includes a leak-proof mechanism, a transmission mechanism, a circulation mechanism, and a cooling mechanism, the leak-proof mechanism including a protective cover, a limiting groove provided inside the protective cover, a turntable movably mounted inside the limiting groove, the turntable fixedly mounted on the driven shaft, and an oil outlet provided directly below the protective cover.

[0006] Preferably, a scraper is fixedly installed on the left side of the turntable, one side of the scraper is attached to the side of the main body of the device, the driven shaft is fixedly installed on the inner ring of the bearing, the bearing is provided with an oil seal groove, and an oil seal plate is provided in the oil seal groove.

[0007] Preferably, the transmission mechanism includes a driven shaft, on which a first gear is fixedly mounted, and above the driven shaft, a transmission shaft and a drive shaft are movably mounted via bearings. On the transmission shaft, a second gear and a third gear are fixedly mounted, and on the drive shaft, a fourth gear is fixedly mounted.

[0008] Preferably, gear one meshes with gear two, gear three meshes with gear four, the transmission ratio of gear one to gear two is 1:5, and the transmission ratio of gear three to gear four is 1:5.

[0009] Preferably, the circulation mechanism includes an oil outlet, an oil extraction pipe is fixedly installed on the oil outlet, an oil extraction pipe branch pipe is fixedly installed on the oil extraction pipe, the end of the oil extraction pipe branch pipe passes through the main body of the device and is installed inside the main body of the device, the height of the end of the oil extraction pipe branch pipe is slightly lower than the position of the drive shaft, and the end of the oil extraction pipe is fixedly installed on the oil pump's oil extraction port.

[0010] Preferably, the oil pump is fixedly installed at the bottom rear of the device body, and an oil injection pipe is fixedly installed at the oil outlet of the oil pump. The oil injection pipe passes through the cooling device and is fixedly installed inside the cooling device. The oil injection pipe inside the cooling device is folded, and the end of the oil injection pipe is fixedly installed at the oil injection port position at the bottom of the device body.

[0011] Preferably, the cooling mechanism includes a protective cover, an air inlet fixedly installed on the side of the protective cover, an air outlet fixedly installed on the opposite side of the protective cover, the other end of the air outlet fixedly installed on the cooling cover, a fan blade provided inside the protective cover, a fan fixedly installed inside the cooling cover, multiple sets of air holes provided on the cooling device below the fan, heat dissipation holes provided on the opposite side of the cooling device, and multiple sets of heat dissipation fins fixedly installed on the oil injection pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This gearbox support device, through its leak-proof mechanism design and the coordinated operation of components such as the oil seal plate and scraper, effectively prevents lubricating oil from leaking from the bearings. This not only avoids the waste of lubricating oil and reduces operating costs, but also prevents lubricating oil from contaminating other parts of the train, reducing the risk of rust and corrosion, and extending the service life of the equipment. Furthermore, the scraper can also recover leaked lubricating oil, improving resource utilization, reducing safety hazards, and providing a basic guarantee for the stable operation of the train gearbox, reducing a series of maintenance and safety problems caused by lubricating oil leakage.

[0013] 2. The support device for the gearbox, through the design of the circulation mechanism and the cooling mechanism, allows the lubricating oil to flow continuously, so as to remove the heat generated by the friction of various components in the reducer in a timely manner. The cooling mechanism cools down the circulating lubricating oil, maintains its appropriate viscosity, ensures lubrication performance, prevents oil film rupture and accelerated component wear, and the cooled lubricating oil flows back, which reduces the internal temperature of the reducer, avoids thermal deformation of components, and ensures transmission accuracy. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a partially enlarged schematic diagram of the leak-proof mechanism of this utility model; Figure 4 This is a schematic diagram of the gas circulation mechanism installation structure of this utility model; Figure 5 This is a schematic diagram of the cooling mechanism of this utility model.

[0015] In the diagram: 1. Main body of the device; 2. End cover; 3. Bolt; 4. Observation window; 5. Protective cover; 6. Cooling cover; 7. Cooling device; 201. Limiting groove; 202. Turntable; 203. Scraper; 204. Oil outlet; 205. Oil seal groove; 206. Oil seal plate; 301. Driven shaft; 302. Bearing; 303. Gear 1; 304. Gear 2; 305. Transmission shaft; 306. Gear 3; 307. Gear 4; 308. Drive shaft; 401. Air inlet; 402. Fan blade; 403. Air outlet; 404. Oil extraction pipe; 405. Oil extraction pipe branch pipe; 406. Oil pump; 407. Fan; 408. Air hole; 409. Oil injection pipe; 410. Heat dissipation fins; 411. Heat dissipation hole; 412. Oil injection port. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] Based on existing technology, traditional gearbox support devices have significant shortcomings. They lack effective leak prevention measures, leading to easy leakage of lubricating oil from the bearings. This not only results in substantial lubricating oil waste and increased operating costs but also causes the lubricating oil to contaminate other components on the train. Contaminated parts are prone to rust and corrosion over long-term use, shortening equipment lifespan. Frequent maintenance and replacement of parts further increase operating costs. Furthermore, leaking lubricating oil may affect the normal operation of critical components such as wheelsets, increasing safety hazards. Therefore, this device is equipped with a leak-proof mechanism. Please refer to [link / reference]. Figures 1-3 This utility model provides a technical solution: a support device for a gearbox, including a device body 1, an end cap 2 fixedly installed on the front of the device body 1 by bolts 3, an observation window 4 provided on the side of the device body 1, a protective cover 5 fixedly installed below the observation window 4, a cooling device 7 fixedly installed on the back of the device body 1, and a cooling cover 6 fixedly installed on the side of the cooling device 7; the support device for the gearbox includes a leak-proof mechanism, a transmission mechanism, a circulation mechanism, and a cooling mechanism, the leak-proof mechanism includes a protective cover 5, a limiting groove 201 provided inside the protective cover 5, a turntable 202 movably installed inside the limiting groove 201, the turntable 202 fixedly installed on the driven shaft 301, and an oil outlet 204 provided directly below the protective cover 5.

[0018] A scraper 203 is fixedly installed on the left side of the turntable 202. One side of the scraper 203 is attached to the side of the main body 1 of the device. The driven shaft 301 is fixedly installed on the inner ring of the bearing 302. The bearing 302 is provided with an oil seal groove 205 and an oil seal plate 206 is provided in the oil seal groove 205.

[0019] The transmission mechanism includes a driven shaft 301, on which a gear 303 is fixedly mounted. A transmission shaft 305 and a drive shaft 308 are movably mounted above the driven shaft 301 via bearings. Gears 304 and 306 are fixedly mounted on the transmission shaft 305, and gear 307 is fixedly mounted on the drive shaft 308.

[0020] Gear 1 (303) meshes with Gear 2 (304), and Gear 3 (306) meshes with Gear 4 (307). The transmission ratio of Gear 1 (303) to Gear 2 (304) is 1:5, and the transmission ratio of Gear 3 (306) to Gear 4 (307) is 1:5.

[0021] When the main body 1 of the device is working, the driven shaft 301 rotates in the bearing 302. Even with the oil seal plate 206, lubricating oil may still leak from the bearing 302. The driven shaft 301 drives the turntable 202 fixed on it to rotate in the limiting groove 201 of the protective cover 5. The scraper 203 on the left side of the turntable 202 is always in contact with the side of the main body 1 of the device. Once the lubricating oil leaks, the scraper 203 will scrape it off and let it flow along the protective cover 5 to the oil outlet 204, so as to realize the recovery of the leaked lubricating oil and avoid it from contaminating other parts of the train. Example

[0022] Based on Embodiment 1, traditional designs also fall short in terms of heat dissipation and lubrication. The significant heat generated by friction between components within the gearbox is difficult to dissipate effectively, leading to a continuous rise in oil temperature. Excessive oil temperature causes a decrease in lubricating oil viscosity, preventing the formation of a stable oil film, exacerbating component wear, and even causing oil film rupture. This severely impacts transmission accuracy, which in turn feeds back into the wheelset system, causing abnormal vibration and noise during operation. Therefore, the device also includes a circulation mechanism and a cooling mechanism. Please refer to [link to relevant documentation]. Figures 1-5 This utility model provides a technical solution: a support device for a gearbox, the circulation mechanism including an oil outlet 204, an oil extraction pipe 404 fixedly installed on the oil outlet 204, an oil extraction pipe branch pipe 405 fixedly installed on the oil extraction pipe 404, the end of the oil extraction pipe branch pipe 405 passing through the device body 1 and installed inside the device body 1, the height of the end of the oil extraction pipe branch pipe 405 being slightly lower than the position of the drive shaft 308, and the end of the oil extraction pipe 404 being fixedly installed at the oil extraction port of the oil pump 406.

[0023] The oil pump 406 is fixedly installed at the bottom back of the main body 1. An oil injection pipe 409 is fixedly installed at the oil outlet of the oil pump 406. The oil injection pipe 409 passes through the cooling device 7 and is fixedly installed inside the cooling device 7. The oil injection pipe 409 inside the cooling device 7 is folded. The end of the oil injection pipe 409 is fixedly installed at the oil injection port 412 at the bottom of the main body 1.

[0024] The cooling mechanism includes a protective cover 5, an air inlet 401 fixedly installed on the side of the protective cover 5, an air outlet 403 fixedly installed on the opposite side of the protective cover 5, the other end of the air outlet 403 fixedly installed on the cooling cover 6, a fan blade 402 is provided inside the protective cover 5, a fan 407 is fixedly installed inside the cooling cover 6, multiple sets of air holes 408 are provided on the cooling device 7 below the fan 407, heat dissipation holes 411 are provided on the opposite side of the cooling device 7, and multiple sets of heat dissipation fins 410 are fixedly installed on the oil injection pipe 409.

[0025] The circulation begins at the oil outlet 204, which connects to the oil extraction pipe 404. A branch pipe 405 on the oil extraction pipe 404 passes through the main body 1 of the device, its end slightly below the drive shaft 308. After the oil pump 406 is started, it draws the heated lubricating oil from the gearbox through the branch pipe 405 and sends it to the oil pump 406 via the oil extraction pipe 404. The oil pump 406 pressurizes the lubricating oil and sends it to the cooling device 7 through the oil injection pipe 409. The oil injection pipe 409 is folded within the cooling device 7 to increase the heat dissipation area. The cooled lubricating oil flows back to the bottom of the main body 1 through the oil injection port 412 at the end of the oil injection pipe 409, completing the circulation and continuously removing heat from the gearbox. The mechanism mainly consists of a protective cover 5, a cooling cover 6, and a cooling device 7. The air inlet 401 on the side of the protective cover 5 and the air outlet 403 on the opposite side are connected to the cooling cover 6. The fan blades 402 inside the protective cover 5 and the fan 407 inside the cooling cover 6 operate, causing air to flow. Air enters from the air inlet 401 and passes through the cooling device 7. Multiple sets of air holes 408 on the cooling device 7 allow the air to fully contact the oil injection pipe 409 inside the device. The heat dissipation fins 410 on the oil injection pipe 409 increase the heat dissipation area and enhance the heat dissipation effect. Hot air is discharged from the air outlet 403, thereby cooling the lubricating oil in the oil injection pipe 409, maintaining its appropriate viscosity, and ensuring lubrication performance.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A support device for a gearbox, comprising a device body (1), characterized in that: The front of the main body (1) of the device is fixedly installed with an end cap (2) by bolts (3), the side of the main body (1) of the device is provided with an observation window (4), a protective cover (5) is fixedly installed below the observation window (4), a cooling device (7) is fixedly installed on the back of the main body (1), and a cooling cover (6) is fixedly installed on the side of the cooling device (7). The support device for the gearbox includes a leak prevention mechanism, a transmission mechanism, a circulation mechanism, and a cooling mechanism. The leak prevention mechanism includes a protective cover (5), a limiting groove (201) is provided inside the protective cover (5), a turntable (202) is movably installed inside the limiting groove (201), the turntable (202) is fixedly installed on the driven shaft (301), and an oil outlet (204) is provided directly below the protective cover (5).

2. The support device for a gearbox according to claim 1, characterized in that: A scraper (203) is fixedly installed on the left side of the turntable (202). One side of the scraper (203) is attached to the side of the main body (1) of the device. The driven shaft (301) is fixedly installed in the inner ring of the bearing (302). The bearing (302) is provided with an oil seal groove (205) and an oil seal plate (206) is provided in the oil seal groove (205).

3. A support device for a gearbox according to claim 2, characterized in that: The transmission mechanism includes a driven shaft (301), on which a gear 1 (303) is fixedly mounted. A transmission shaft (305) and a drive shaft (308) are movably mounted above the driven shaft (301) via bearings. Gear 2 (304) and gear 3 (306) are fixedly mounted on the transmission shaft (305), and gear 4 (307) is fixedly mounted on the drive shaft (308).

4. A support device for a gearbox according to claim 3, characterized in that: Gear 1 (303) meshes with gear 2 (304), gear 3 (306) meshes with gear 4 (307), the transmission ratio of gear 1 (303) to gear 2 (304) is 1:5, and the transmission ratio of gear 3 (306) to gear 4 (307) is 1:

5.

5. A support device for a gearbox according to claim 4, characterized in that: The circulation mechanism includes an oil outlet (204), an oil extraction pipe (404) is fixedly installed on the oil outlet (204), an oil extraction pipe branch pipe (405) is fixedly installed on the oil extraction pipe (404), the end of the oil extraction pipe branch pipe (405) passes through the device body (1) and is installed inside the device body (1), the height of the end of the oil extraction pipe branch pipe (405) is slightly lower than the position of the drive shaft (308), and the end of the oil extraction pipe (404) is fixedly installed at the oil extraction port of the oil pump (406).

6. A support device for a gearbox according to claim 5, characterized in that: The oil pump (406) is fixedly installed on the bottom back of the main body (1). An oil injection pipe (409) is fixedly installed at the oil outlet of the oil pump (406). The oil injection pipe (409) passes through the cooling device (7) and is fixedly installed inside the cooling device (7). The oil injection pipe (409) is folded inside the cooling device (7). The end of the oil injection pipe (409) is fixedly installed at the oil injection port (412) at the bottom of the main body (1).

7. A support device for a gearbox according to claim 6, characterized in that: The cooling mechanism includes a protective cover (5), an air inlet (401) is fixedly installed on the side of the protective cover (5), an air outlet (403) is fixedly installed on the opposite side of the protective cover (5), the other end of the air outlet (403) is fixedly installed on the cooling cover (6), a fan blade (402) is provided inside the protective cover (5), a fan (407) is fixedly installed inside the cooling cover (6), a cooling device (7) below the fan (407) is provided with multiple sets of air holes (408), a heat dissipation hole (411) is provided on the opposite side of the cooling device (7), and a multiple set of heat dissipation fins (410) are fixedly installed on the oil injection pipe (409).

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