A locomotive coupler anti-jump device

Abstract

The utility model relates to a kind of locomotive coupler anti-jump devices, including strip steel pedestal, mounting hole, restraint steel bar, plane end, outer thread, metal ring spring buckle, first buckle, second buckle, anti-chain, with the first buckle 3a connection ring, with the second buckle 3b connection ring, nut mechanism, operating nut, locking nut, coupler locking pin, lifting rod, pull rod.The device is simple in structure, easy to make, easy to operate, can accurately limit coupler locking pin vertical jump amplitude (≤10mm), fundamentally eliminate the unexpected unlocking risk caused by vibration, shaking and complex force impact of coupler;Through the cooperation design of restraint steel bar and anti-chain, when locomotive is connected and needs to open coupler anti-jump device, it can prevent the loss of restraint steel bar, avoid the hidden danger that anti-jump device cannot be used.

Description

Technical Field

[0001] This patent application belongs to the field of railway transportation equipment technology, and more specifically, it relates to a diesel locomotive coupler anti-jump device, especially applicable to the Dongfeng 10D diesel locomotive. Background Technology

[0002] In railway transportation, diesel locomotives play a crucial role in traction. The coupler, as a key component connecting vehicles, directly impacts the safety of train operation. Currently, locomotives experience vibrations, swaying, and various complex forces when navigating curves. Without anti-jump devices, the coupler could easily detach unexpectedly. Once the coupler detaches, the connection between the locomotive and the vehicle is interrupted, potentially leading to serious railway safety accidents. While some anti-jump measures exist, they suffer from complex structures, inconvenient installation, and poor reliability, failing to effectively meet the ever-increasing safety demands of railway transportation. Therefore, developing a simple, easy-to-install anti-jump device that effectively prevents the coupler from automatically detaching is of significant practical importance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a diesel locomotive coupler anti-jump device, which effectively prevents the coupler from automatically jumping apart during operation through the design of a specific structure, thereby improving the safety of railway transportation.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: An anti-jump device for couplers of an internal combustion locomotive includes a base mechanism, an installation mechanism, and a connection mechanism. The basic mechanism includes a coupler locking pin mounted on the coupler, a pull rod mounted on the coupler locking pin, and a lifting rod mounted on the pull rod and pointing toward the coupler locking pin; The mounting mechanism includes a strip steel base symmetrically welded to the locking pin on the coupler, a mounting hole on the top of the strip steel base, a restraining steel bar inserted through the mounting hole and parallel to the locking pin on the coupler, a flat end of the restraining steel bar, an operating nut horizontally welded to the flat end, an external thread at the other end of the restraining steel bar, and a locking nut axially locked with the M12 external thread. One plane of the operating nut is fixed to the flat end of the restraining steel bar by a horizontal weld. The operating nut and the locking nut together constitute the nut mechanism. The connecting mechanism includes a metal ring spring buckle, which includes a first buckle mounted on the operating nut and a second buckle mounted at a preset mounting position on the lifting rod. An anti-derailment chain is connected between the first buckle and the second buckle. The top of the steel base adopts a semi-circular arc transition, and the vertical distance between the restraining steel bar and the locking pin on the coupler is 8~15mm, preferably 10mm.

[0005] Furthermore, the strip base is a 120×50×5mm rectangular steel plate, and the strip base is provided with a φ13mm mounting hole 20mm from the top edge.

[0006] Furthermore, the restraining reinforcement is a straight bar-shaped member with a diameter of 12mm and a length of 180mm.

[0007] Furthermore, the metal ring spring buckle has dimensions of 38×5mm, an inner diameter of 38mm, and a wire thickness of 5.0mm.

[0008] Furthermore, the anti-derailment chain is a 300mm long, 2mm φ metal chain.

[0009] Furthermore, the nut mechanism is an M12 standard hexagonal nut.

[0010] Furthermore, the lifting lever is U-shaped.

[0011] The beneficial effects achieved by this utility model due to the adoption of the above technical solution are as follows: This device, through the combined design of a steel base and restraining steel bars, forms a rigid restraint frame that can precisely limit the vertical jump of the locking pin on the coupler (≤10mm), fundamentally eliminating the risk of unexpected unlocking of the coupler due to vibration, shaking, and impact from complex forces. Through the combined design of the restraining steel bars and the anti-derailment chain, when the anti-derailment device needs to be opened during locomotive coupling, the restraining steel bars can be prevented from being lost, avoiding the hidden danger of the anti-derailment device becoming unusable.

[0012] This utility model has a simple structure, is easy to manufacture and operate. It adopts an M12 standard threaded connection structure and a modular assembly design, which can be disassembled and installed by a single person within 1 minute. It is convenient, fast and has low maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation of the anti-jump device of this utility model.

[0014] Figure 2 This is a schematic diagram of the anti-chain detachment method of this utility model.

[0015] Figure 3 This is an axonometric view of the restrained reinforcing bar of this utility model.

[0016] Figure 4 This is the front view of the steel strip base of this utility model.

[0017] Figure 5 This is a left view of the steel strip base of this utility model.

[0018] The labels in the diagram are as follows: 1. Steel base; 1a. Mounting hole; 2. Constraint reinforcement; 2a. Flat end; 2b. External thread; 3. Metal ring spring buckle; 3a. First buckle; 3b. Second buckle; 4. Anti-chain slippage; 4a. Connecting ring to first buckle 3a; 4b. Connecting ring to second buckle 3b; 5. Nut mechanism; 5a. Operating nut; 5b. Locking nut; 6. Locking pin on the coupler; 7. Lifting rod; 8. Pull rod. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the embodiments.

[0020] A diesel locomotive coupler anti-jump device, such as Figures 1-5 It includes the basic structure, the installation structure, and the connection structure.

[0021] The basic mechanism includes a coupler locking pin 6 installed on the coupler, a pull rod 8 installed on the coupler locking pin 6, and a lifting rod 7 installed on the pull rod 8 and facing the coupler locking pin 6; The mounting mechanism includes a strip steel base 1 symmetrically welded to the locking pin 6 on the coupler, a mounting hole 1a set on the top of the strip steel base 1, a restraining steel bar 2 that penetrates and is inserted into the mounting hole 1a and is parallel to the locking pin 6 on the coupler, a flat end 2a set at one end of the restraining steel bar 2, an operating nut 5a horizontally welded to the flat end 2a, an external thread 2b set at the other end of the restraining steel bar 2, and a locking nut 5b that is axially locked to the M12 external thread 2b. One plane of the operating nut 5a is fixed to the flat end 2a of the restraining steel bar 2a by a horizontal weld. The operating nut 5a and the locking nut 5b together constitute the nut mechanism 5. The connecting mechanism includes a metal ring spring buckle 3, which includes a first buckle 3a mounted on the operating nut 5a and a second buckle 3b mounted at a preset mounting position on the lifting rod 7. An anti-derailment chain 4 is connected between the first buckle 3a and the second buckle 3b. The top of the steel base 1 adopts a semi-circular arc transition, and the vertical distance between the restraining steel bar 2 and the locking pin 6 on the coupler is 8~15mm, preferably 10mm.

[0022] In the design, the steel base 1 is a rectangular steel plate of 120×50×5mm, and the steel base 1 is provided with a φ13mm mounting hole 1a 20mm from the top edge.

[0023] The restraining reinforcement 2 is a straight bar with a diameter of 12mm and a length of 180mm.

[0024] The metal ring spring buckle 3 has dimensions of 38×5mm, an inner diameter of 38mm, and a wire thickness of 5.0mm.

[0025] The anti-detachment chain 4 is a 300mm long, 2mm φ metal chain.

[0026] Nut mechanism 5 is an M12 standard hexagonal nut.

[0027] The lifting lever 7 is U-shaped.

[0028] The working process of the utility model is as follows: This utility model is generally composed of a steel base 1, a restraining steel bar 2, a metal ring spring buckle 3, an anti-derailment chain 4, and a nut mechanism 5.

[0029] Installation of strip steel base 1: Two rectangular strip steel bases 1, each measuring 120×50×5mm, are symmetrically welded to both sides of the locking pin 6 on the coupler, ensuring precise welding. The φ13mm mounting holes 1a on the two bases are aligned along their axes, and the vertical distance between the circular bottom of the mounting hole 1a and the locking pin 6 on the coupler is 10mm. The top edges of the strip steel bases are treated with a semi-circular transition structure to prevent scratches from the edges of the strip steel bases during operation.

[0030] Installation of restraint reinforcement 2: Take a restraint reinforcement 2 with a diameter of 12mm and a length of 180mm, and pass it through the φ13mm mounting holes 1a of the steel base 1 on both sides to restrict the vertical movement of the coupler. Ensure that the vertical distance between the restraint reinforcement 2 and the locking pin 6 on the coupler is 10mm, and that the restraint reinforcement 2 and the locking pin 6 on the coupler are parallel and subjected to balanced force. Weld one plane of the M12 operating nut (5a) horizontally to the flat end 2a of the restraint reinforcement 2, and machine the M12 external thread 2b at the other end. By engaging the locking nut (5b) with the external thread, the axial locking and fixing of the restraint reinforcement 2 is achieved.

[0031] Buckle installation: Select metal ring spring buckle 3 with dimensions of 38×5mm (inner diameter 38mm, wire thickness 5.0mm). Metal ring spring buckle 3 includes a first buckle 3a and a second buckle 3b. Install the first buckle 3a on the operating nut 5a and the second buckle 3b on the preset installation position of the lifting rod 7.

[0032] Anti-detachment chain 4 installation: Connect one end of the anti-detachment chain 4, which is made of a metal chain with a length of 300mm and a diameter of 2mm (that is, the connecting ring 4a with the first buckle 3a), to the first buckle 3a, and the other end (that is, the connecting ring 4b with the second buckle 3b), to the second buckle 3b, to prevent the restraining steel bar 2 from falling off and being lost when the device is opened.

[0033] Nut mechanism 5 installation: The nut mechanism 5 used is an M12 standard hexagonal nut. The plane of the operating nut 5a is fixed to the constraint steel bar 2a by a horizontal weld. The locking nut 5b is screwed into the M12 external thread 2b of the constraint steel bar 2. The locking nut 5b is tightened by wrench to achieve axial locking of the constraint steel bar 2.

[0034] Anti-jump state: During normal operation, the restraint steel bar 2 is rigidly connected to the coupler upper locking pin 6 through the steel base 1 to form a vertical restraint frame, which limits the vertical jump of the coupler upper locking pin 6 to ≤10mm and prevents the coupler from being unlocked unexpectedly due to external forces such as vibration.

[0035] Coupling Operation: When the coupler needs to be engaged for coupling, loosen the locking nut 5b to release the axial locking of the restraining reinforcing bar 2. Move the restraining reinforcing bar 2 to one side and remove it from the mounting hole 1a of the strip base 1. At this time, the anti-derailment chain 4, connected to the lifting rod 7, can suspend the restraining reinforcing bar 2 to prevent it from falling and being lost. After coupling is completed, re-insert the restraining reinforcing bar 2 into the mounting hole 1a and tighten the locking nut 5b to restore the anti-jump function.

Claims

1. A device for preventing coupler jumping in a diesel locomotive, characterized in that: Includes basic structure, installation structure, and connection structure. The basic mechanism includes a coupler locking pin (6) set on the coupler, a pull rod (8) set on the coupler locking pin (6), and a lifting rod (7) set on the pull rod (8) and facing the coupler locking pin (6). The mounting mechanism includes a strip steel base (1) symmetrically welded to the locking pin (6) on the coupler, a mounting hole (1a) set on the top of the strip steel base (1), a restraining steel bar (2) inserted through the mounting hole (1a) and parallel to the locking pin (6) on the coupler, a flat end (2a) set at one end of the restraining steel bar (2), an operating nut (5a) horizontally welded to the flat end (2a) on one side, an external thread (2b) set at the other end of the restraining steel bar (2), and a locking nut (5b) axially locked to the M12 external thread (2b). One plane of the operating nut (5a) is fixed to the flat end (2a) of the restraining steel bar (2) by a horizontal weld. The operating nut (5a) and the locking nut (5b) together constitute the nut mechanism (5). The connecting mechanism includes a metal ring spring buckle (3), which includes a first buckle (3a) mounted on the operating nut (5a) and a second buckle (3b) mounted at a preset mounting position on the lifting rod (7). An anti-derailment chain (4) is connected between the first buckle (3a) and the second buckle (3b). The top of the steel base (1) adopts a semi-circular arc transition, and the vertical distance between the restraint steel bar (2) and the locking pin (6) on the coupler is 8~15mm.

2. The anti-jump device for coupler of an internal combustion locomotive according to claim 1, characterized in that: The steel base (1) is a rectangular steel plate of 120×50×5mm. The steel base (1) has a φ13mm mounting hole (1a) 20mm from the top edge.

3. The anti-jump device for couplers of an internal combustion locomotive according to claim 1, characterized in that: The restraint reinforcement (2) is a straight bar with a diameter of 12mm and a length of 180mm.

4. The anti-jump device for coupler of an internal combustion locomotive according to claim 1, characterized in that: The metal ring spring buckle (3) has dimensions of 38×5mm, an inner diameter of 38mm, and a wire thickness of 5.0mm.

5. The anti-jump device for couplers of an internal combustion locomotive according to claim 1, characterized in that: The anti-detachment chain (4) is a metal chain with a length of 300mm and a diameter of 2mm.

6. A diesel locomotive coupler anti-jump device according to any one of claims 1-5, characterized in that: The nut mechanism (5) is an M12 standard hexagonal nut.

7. A diesel locomotive coupler anti-jump device according to any one of claims 1-5, characterized in that: The lifting rod (7) is U-shaped.

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