Heavy car shunting brake system with additional independent oil station

Abstract

The utility model relates to railway heavy vehicle shunting mechanism brake technical field discloses heavy vehicle shunting machine brake system adds independent oil station, including branch leg and hydraulic mechanism, the oil tank of hydraulic mechanism is fixedly connected in branch leg top wall, installs the cut -off door on the oil inlet pipe, hydraulic mechanism still includes motor, hydraulic pump, oil cylinder, high -pressure oil pipe, oil return pipe and pressure valve, constitutes independent hydraulic circulation loop, is used for providing stable high -pressure oil, and heavy vehicle shunting machine brake system adds independent oil station still includes protection mechanism, the protection mechanism is installed in the outer wall of cut -off door. The utility model adds independent hydraulic system, has enhanced the stability of system operation obviously, has reduced the failure risk, and the protection mechanism effectively isolates external dust and impurity, avoids the collision damage, guarantees the long -term reliability of cut -off door switch, improves the service life of heavy vehicle shunting machine brake system.

Description

Technical Field

[0001] This utility model relates to the field of railway shunting braking technology, and in particular to the addition of an independent fuel station to the shunting braking system. Background Technology

[0002] As a key piece of equipment for railway transportation and dispatching, the reliability of the braking system of heavy-duty shunting locomotives is directly related to traffic safety and operational efficiency. Currently, the braking system of heavy-duty shunting locomotives usually relies on hydraulic power for driving and control, and the hydraulic system is the core of performing braking actions.

[0003] However, in existing technologies, the hydraulic power source of the braking system of heavy-duty shunting locomotives is often shared with other functional systems of the shunting locomotive or has a simple design. Under long-term heavy-load and high-frequency operating conditions, due to complex pipeline layout, component aging, or interference from external environmental factors, the risk of leakage in the original hydraulic system pipelines increases, and abnormal system pressure fluctuations occur, resulting in reduced working stability of the hydraulic system, affecting braking performance, and increasing the failure rate. This directly restricts the reliability and economic benefits of shunting locomotive operations. In addition, key control components on the hydraulic pipelines, such as gate valves, are exposed at their interfaces for a long time in the dusty, vibrating, and open-air environment of shunting locomotive operation. They are subject to the intrusion of external dust and impurities and the impact of mechanical collisions. These factors can directly damage the sealing structure and operating interface of the valves, affecting the normal opening and closing operation and sealing performance of the gate valves, leading to accelerated oil erosion and further deteriorating the reliability of the entire hydraulic system.

[0004] Therefore, this utility model proposes to add an independent fuel station to the braking system of a heavy-duty shunting machine to solve the shortcomings of the existing technology. Utility Model Content

[0005] In view of the problems existing in the braking system of heavy-duty shunting machines with the addition of an independent oil station, such as the high failure rate of the original hydraulic system, poor operational stability, and the fact that key shut-off valves on the hydraulic pipelines are exposed and susceptible to dust contamination and mechanical impact, leading to sealing failure or operational malfunction, this utility model aims to provide a heavy-duty shunting machine braking system with an improved structure that can effectively solve the above problems by adding an independent oil station.

[0006] This utility model provides an independent oil station for the braking system of a heavy-duty shunting machine, including: outriggers; a hydraulic mechanism, which includes an oil tank, a hydraulic pump, an oil cylinder, an oil inlet pipe, a high-pressure oil pipe and an oil return pipe; and a protective mechanism.

[0007] The protective mechanism includes a fixed base, a bellows, a threaded ring, a slotted block, a threaded groove, and a sealing ring; the threaded groove is provided on the left side of the outer wall of the slotted block, and the sealing ring is provided inside the slotted block.

[0008] Furthermore, the oil tank is fixedly connected to the top wall of the outrigger, a stop valve is installed on the oil inlet pipe, the protective mechanism is installed on the outer wall of the stop valve, the fixed base is fixedly connected to the outer wall of the oil inlet pipe located on the left side of the stop valve, the corrugated pipe is fixedly connected to the right side of the outer wall of the fixed base, and the threaded ring is rotatably connected to the right side of the outer wall of the corrugated pipe. The threaded ring and the threaded groove are combined by a threaded connection to achieve sealing and physical protection of the stop valve.

[0009] Preferably, the hydraulic mechanism further includes a motor, which is mounted on the left side of the top wall of the oil tank, and the motor drives the hydraulic pump.

[0010] Preferably, a pressure valve is installed on the high-pressure oil pipe. The pressure valve is located between the oil outlet of the hydraulic pump and the oil inlet of the oil cylinder, and is used to monitor the oil pressure in real time and stabilize it within a set range.

[0011] Preferably, the shut-off valve is installed in the middle of the oil inlet pipe, which facilitates pipeline layout and switching operation.

[0012] Preferably, the bellows has a telescopic structure, which is used to extend to cover or retract to expose the stop gate when the threaded ring moves, thereby achieving flexible covering and storage functions.

[0013] Preferably, the threaded ring is connected to the threaded groove on the slotted block by rotation, and the threaded ring moves along the inner wall of the slotted block to squeeze the sealing ring, so as to achieve simultaneous locking and sealing.

[0014] Preferably, the slotted block and the fixed base are both fixedly connected to different positions on the outer wall of the oil inlet pipe to provide stable and reliable support and protection.

[0015] Preferably, the hydraulic mechanism is used to drive the piston in the cylinder to make linear motion, so as to clarify the execution effect of the hydraulic mechanism.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problems of high failure rate, unstable operation, and easy pressure abnormality or leakage in the original hydraulic system by adding an independent hydraulic mechanism consisting of a motor, hydraulic pump, oil tank, oil cylinder and complete circulation pipeline. It achieves the effect of providing a stable and reliable hydraulic power source for the braking system, greatly reducing the risk of failure and enhancing the overall stability of the system.

[0018] 2. This utility model solves the problem in the prior art where key valves exposed to harsh working conditions are easily contaminated by dust, external impacts, or oil corrosion, leading to malfunction or sealing failure. It utilizes the expansion and contraction of the bellows and the locking and sealing of the threaded ring to effectively prevent dust, impacts, and corrosion, ensuring the flexibility of the shut-off valve and its long-term reliability. Attached Figure Description

[0019] Figure 1 A front view of the independent fuel station added to the heavy-duty shunting braking system proposed in this utility model;

[0020] Figure 2 A three-dimensional view of the addition of an independent fuel station to the braking system of the heavy-duty shunting mechanism proposed in this utility model;

[0021] Figure 3 Rear view of the heavy-duty shunting braking system proposed in this utility model, which adds an independent fuel station;

[0022] Figure 4 A partial structural breakdown diagram of the independent fuel station added to the braking system of the heavy-duty shunting mechanism proposed in this utility model;

[0023] Figure 5 A diagram illustrating the hydraulic mechanism for adding an independent oil station to the braking system of the heavy-duty shunting mechanism proposed in this utility model;

[0024] Figure 6 Exploded view of the protective mechanism for adding an independent fuel station to the braking system of the heavy-duty shunting mechanism proposed in this utility model.

[0025] Legend:

[0026] 1. Outriggers; 2. Protective mechanism; 201. Threaded groove; 202. Slotted block; 203. Sealing ring; 204. Threaded ring; 205. Bellows; 206. Fixed base; 3. Hydraulic mechanism; 301. Motor; 302. Oil tank; 303. Oil inlet pipe; 304. Hydraulic pump; 305. Oil cylinder; 306. Oil return pipe; 307. Pressure valve; 308. High-pressure oil pipe; 4. Stop valve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0028] Example:

[0029] Please refer to Figures 1 to 6 This utility model embodiment provides an independent oil station for the braking system of a heavy-duty shunting machine, which aims to solve the problems of high failure rate and unstable operation of the original hydraulic system of the heavy-duty shunting machine braking system in the prior art, and the fact that key components on the hydraulic pipeline are exposed to harsh working conditions and are easily affected by dust, impact or oil corrosion, resulting in sealing failure or operation failure.

[0030] Please refer to Figure 1 and Figure 2 The heavy-duty shunting braking system is equipped with an independent oil station, including outrigger 1 and hydraulic mechanism 3. The oil tank 302 of hydraulic mechanism 3 is fixedly connected to the top wall of outrigger 1. Outrigger 1 serves as the mounting base for the entire device, while hydraulic mechanism 3 provides an independent hydraulic power source for the braking system.

[0031] Please refer to Figure 4 , Figure 5 and Figure 6 The hydraulic mechanism 3 also includes a motor 301, which is installed on the left side of the top wall of the oil tank 302. The motor 301 is used to drive the hydraulic pump 304 to start. The lower rear end of the outer wall of the oil tank 302 is connected to the oil inlet pipe 303. A stop valve 4 is installed in the middle of the oil inlet pipe 303. The other end of the oil inlet pipe 303 is connected to the hydraulic pump 304. The oil outlet of the hydraulic pump 304 is connected to the oil cylinder 305 through the high-pressure oil pipe 308. A pressure valve 307 is installed on the high-pressure oil pipe 308. The oil return end of the oil cylinder 305 is connected to the return oil pipe. 306. The other end of the return oil pipe 306 is connected to the oil tank 302. After the motor 301 starts, it drives the hydraulic pump 304 to run. The hydraulic pump 304 draws low-pressure hydraulic oil from the oil tank 302 through the oil inlet pipe 303, converts it into high-pressure oil, and delivers it to the inside of the oil cylinder 305, pushing the piston in the oil cylinder 305 to make linear motion. When the action is performed or when it needs to be reset, the high-pressure oil in the oil cylinder 305 flows into the return oil pipe 306 through the return oil end, and smoothly returns the oil that has completed the work to the oil tank 302, forming a complete hydraulic cycle.

[0032] The protective mechanism 2 is installed on the outer wall of the stop gate 4. The protective mechanism 2 includes a fixed base 206, a bellows 205, a threaded ring 204, a slotted block 202, a threaded groove 201, and a sealing ring 203. The fixed base 206 is fixedly connected to the outer wall of the oil inlet pipe 303 on the left side of the stop gate 4. The bellows 205 is fixedly connected to the right side of the outer wall of the fixed base 206. The bellows 205 has a telescopic structure. The bellows 205 is used to extend to cover or retract to expose the stop gate 4 when the threaded ring 204 moves. The threaded ring 204 is rotatably connected to the right side of the outer wall of the bellows 205. The threaded ring 204 is used to extend to cover the stop gate 4.

[0033] The slotted block 202 is fixedly connected to the outer wall of the oil inlet pipe 303 on the right side of the stop gate 4. A threaded groove 201 is provided on the left side of the outer wall of the slotted block 202. The threaded groove 201 is used to connect with the threaded ring 204. A sealing ring 203 is provided inside the slotted block 202. When the threaded ring 204 is pulled to the threaded groove 201 of the slotted block 202 and the threaded ring 204 is rotated to connect with the slotted block 202, the threaded ring 204 moves along the inner wall of the slotted block 202 to squeeze the sealing ring 203, so that the protective mechanism 2 can isolate external dust and impurities from entering the stop gate 4 interface and avoid collisions that cause mechanical damage to the interface.

[0034] In a preferred embodiment, to enhance the power of the hydraulic system, the hydraulic mechanism 3 also includes a motor 301, which is mounted on the left side of the top wall of the oil tank 302 and drives the hydraulic pump 304.

[0035] As another preferred embodiment, in order to monitor the oil pressure in real time and stabilize it within a set range, a pressure valve 307 is installed on the high-pressure oil pipe 308. The pressure valve 307 is located between the oil outlet end of the hydraulic pump 304 and the oil inlet end of the oil cylinder 305.

[0036] In another preferred embodiment, to facilitate pipeline layout and switching operation, the shut-off valve 4 is installed in the middle of the oil inlet pipe 303.

[0037] As another preferred embodiment, in order to achieve flexible covering and storage functions, the bellows 205 has a telescopic structure, which is used to extend to cover or retract to expose the stop gate 4 when the threaded ring 204 moves.

[0038] In another preferred embodiment, in order to achieve simultaneous locking and sealing, the threaded ring 204 is connected to the threaded groove 201 on the slotted block 202 by rotation, and the threaded ring 204 moves along the inner wall of the slotted block 202 to compress the sealing ring 203.

[0039] In another preferred embodiment, in order to provide stable and reliable support and protection, the slotted block 202 and the fixed base 206 are both fixedly connected to different positions on the outer wall of the oil inlet pipe 303.

[0040] As another preferred embodiment, in order to clarify the execution effect of the hydraulic mechanism 3, the hydraulic mechanism 3 is used to drive the piston inside the oil cylinder 305 to make linear motion.

[0041] Working principle: When braking is required or the system needs hydraulic power support, the motor 301 is started, which drives the hydraulic pump 304 to start. The hydraulic pump 304 draws low-pressure hydraulic oil from the oil tank 302 through the oil inlet pipe 303. The hydraulic oil undergoes a volume change in the pump body to convert mechanical energy into hydraulic energy, generating high-pressure oil. The oil outlet of the hydraulic pump 304 is connected to the oil inlet of the cylinder 305 through the high-pressure oil pipe 308. The pressure valve 307 installed on the high-pressure oil pipe 308 monitors the oil pressure in real time and stabilizes it within the set range. The high-pressure oil after compression is continuously delivered to the inside of the cylinder 305, pushing the piston inside the cylinder 305 to make linear motion and realize the braking action. When no action is needed or reset is required, the high-pressure oil in the cylinder 305 flows into the return oil pipe 306 through the return oil end. The other end of the return oil pipe 306 is connected to the return oil interface of the oil tank 302, so that the oil that has completed the work flows back smoothly to the oil tank 302, forming a complete hydraulic cycle. Through the setting of the independent hydraulic mechanism 3, the risk of failure such as pipeline leakage and pressure abnormality is greatly reduced, and the system stability is enhanced.

[0042] To prevent the interface of the stop gate 4 from being damaged by dust or oil during operation, and to ensure the flexibility of opening and closing and the reliability of sealing, the threaded ring 204 of the protective mechanism 2 is pulled. The threaded ring 204 can drive the bellows 205 to move and extend its coverage. The threaded ring 204 is moved to the threaded groove 201 opened in the slotted block 202. The threaded ring 204 is rotated to connect with the threaded engagement of the slotted block 202. The threaded ring 204 moves along the inner wall of the slotted block 202 and presses the sealing ring 203 set inside the slotted block 202, making the structure more airtight. Thus, the protective mechanism 2 can isolate external dust and impurities from entering the interface of the stop gate 4, avoid collisions that cause mechanical damage to the interface, and ensure the normal opening and closing operation and long-term stable use of the stop gate 4.

Claims

1. The braking system of the heavy-duty shunting machine is equipped with an independent fuel station, including: Support leg (1); The hydraulic mechanism (3) includes an oil tank (302), a hydraulic pump (304), an oil cylinder (305), an oil inlet pipe (303), a high-pressure oil pipe (308), and an oil return pipe (306); The oil tank (302) is fixedly connected to the top wall of the outrigger (1). The lower rear end of the outer wall of the oil tank (302) is connected to the oil inlet pipe (303). A stop valve (4) is installed on the oil inlet pipe (303). The other end of the oil inlet pipe (303) is connected to the hydraulic pump (304). The oil outlet of the hydraulic pump (304) is connected to the oil cylinder (305) through the high-pressure oil pipe (308). The oil return end of the oil cylinder (305) is connected to the oil return pipe (306). The other end of the oil return pipe (306) is connected to the oil tank (302). Its features are, It also includes a protective mechanism (2), which is installed on the outer wall of the stop gate (4). The protective mechanism (2) includes a fixed base (206), a bellows (205), a threaded ring (204), a slotted block (202), a threaded groove (201), and a sealing ring (203). The fixed base (206) is fixedly connected to the outer wall of the oil inlet pipe (303) on the left side of the stop gate (4), and the bellows (205) is fixedly connected to the right side of the outer wall of the fixed base (206).

2. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The right side of the outer wall of the corrugated pipe (205) is rotatably connected to the threaded ring (204), which is used to extend and cover the stop gate (4). The slotted block (202) is fixedly connected to the outer wall of the oil inlet pipe (303) located on the right side of the stop gate (4).

3. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The slotted block (202) has a threaded groove (201) on the left side of its outer wall. The threaded groove (201) is used to connect with the threaded ring (204) by thread. The slotted block (202) has a sealing ring (203) inside.

4. The heavy-duty shunting braking system according to claim 1 is equipped with an independent fuel station, characterized in that, The hydraulic mechanism (3) also includes a motor (301), which is installed on the left side of the top wall of the oil tank (302) and drives the hydraulic pump (304).

5. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, A pressure valve (307) is installed on the high-pressure oil pipe (308), and the pressure valve (307) is located between the oil outlet end of the hydraulic pump (304) and the oil inlet end of the oil cylinder (305).

6. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The shut-off valve (4) is installed in the middle of the oil inlet pipe (303).

7. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The bellows (205) has a telescopic structure and is used to extend to cover or retract to expose the stop gate (4) when the threaded ring (204) moves.

8. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The threaded ring (204) is connected to the threaded groove (201) on the slotted block (202) by rotation, and the threaded ring (204) moves along the inner wall of the slotted block (202) to squeeze the sealing ring (203).

9. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The slotted block (202) and the fixed base (206) are both fixedly connected to different positions on the outer wall of the oil inlet pipe (303).

10. The shunting braking system for heavy-duty wagons according to claim 1 is equipped with an independent fuel station, characterized in that, The hydraulic mechanism (3) is used to drive the piston inside the cylinder (305) to move linearly.

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