Limiting and anti-jumping device for upper action hook lifting rod

Abstract

Provided is a position limiting and anti-jumping device for an upper-acting hook lifting rod, wherein a mounting plate and an ear plate seat located below the mounting plate are both fixed on the frame end plate surface, one end of the hook plate is hooked on the hook lifting rod, the other end of the hook plate is rotatably mounted on the ear plate seat, and the hook plate is positioned on the ear plate seat through a positioning pin shaft and a baffle located above the ear plate seat, the baffle plate is mounted on the mounting plate with adjustable upper and lower positions and angles, and the baffle plate's upper and lower movement is less than the length of the positioning pin shaft. The present invention solves the problem of abnormal unlocking of the hook due to the large swing of the hook lifting rod under vehicle impact and vibration, ensures the normal transportation efficiency and order of the railway, has a simple structure, safe and reliable performance, is easy to install and use, can realize the position limiting and anti-jumping function of the upper-acting hook lifting rod without changing the original structure of the hook lifting rod and the mounting seat, improves the safety factor during the use of the hook, and ensures the safety of vehicle operation.

Description

Technical Field

[0001] The invention belongs to the technical field of carriage connection of rail vehicles, and in particular relates to a position limiting and anti-jumping device for an upper acting hook lifting rod. Background Art

[0002] As one of the most basic and important parts of a vehicle, the coupler buffer device is located between the locomotive and the vehicle or between the vehicles. It is used to achieve vehicle traction and coupling and ensure a certain distance between the vehicles. It plays a vital role in alleviating shock and vibration and improving the safety, stability and comfort of vehicle operation. When the vehicle is in operation, it will be subjected to longitudinal shock and vertical vibration. When the shock and vibration reach a certain level, it will cause the coupler lever to swing greatly, resulting in abnormal unlocking of the coupler, causing accidents such as automatic separation, rollover, derailment, etc. of the train. In serious cases, it will also affect the normal transportation efficiency and order of the railway, causing immeasurable losses to life safety and the national economy. Due to structural limitations, some existing rail vehicles cannot be installed with a coupler lever anti-jump device. There is a hidden danger that the coupler lever will malfunction during vehicle operation, resulting in abnormal unlocking of the coupler. In order to solve this problem, it is necessary to make improvements. Summary of the invention

[0003] The technical problem solved by the present invention is as follows: a position limiting and anti-jumping device for an upper-acting hook lifting rod is provided, by arranging a mounting plate with a baffle installed and an ear plate seat with a hook plate rotatably installed on the end panel surface of the frame, and under the action of gravity, the baffle is pressed against the positioning pin shaft that positions the hook plate on the ear plate seat, so as to realize the longitudinal positioning of the hook lifting rod by the hook plate, solve the problem of abnormal unlocking of the hook caused by the large-scale swing of the hook lifting rod under the impact and vibration of the vehicle, ensure the normal transportation efficiency and order of the railway, have a simple structure, safe and reliable performance, and are easy to install and use, and can realize the position limiting and anti-jumping function of the upper-acting hook lifting rod without changing the original structure of the hook lifting rod and the mounting seat, thereby improving the safety factor during the use of the hook and ensuring the safety of vehicle operation.

[0004] The technical solution adopted by the present invention is: a position limiting and anti-jumping device for an upper-acting hook lifting rod, comprising a mounting plate, a baffle, an ear plate seat and a hook plate, wherein the mounting plate and the ear plate seat located therebelow are both fixed on the end panel surface of the frame, one end of the hook plate is hooked on the hook lifting rod, the other end of the hook plate is rotatably mounted on the ear plate seat and the hook plate is positioned on the ear plate seat through a positioning pin shaft and a baffle located above the ear plate seat, the baffle plate is mounted on the mounting plate so that its upper and lower position and angle can be adjusted, and the up and down movement of the baffle plate is less than the length of the positioning pin shaft.

[0005] Among them, the baffle is in an L-shaped structure and the horizontal plate at the lower end of the baffle rests on the positioning pin shaft under the action of gravity. A waist-shaped long hole and a rotating channel are formed on the vertical plate surface of the baffle, and the lower end of the waist-shaped long hole is connected with the lower end of the rotating channel. The rotating channel is formed by a long strip hole parallel to the waist-shaped long hole and an arc hole that transitions and connects the lower end of the waist-shaped long hole with the lower end of the long strip hole; the mounting plate is in a U-shaped structure and one side of the mounting plate is fixed to the end panel surface of the frame. Two connecting pin shafts that are adapted to the waist-shaped long hole and pass through the through holes at corresponding positions on the other side wall of the mounting plate and the open pins inserted in the ends of the connecting pin shafts install the baffle on the mounting plate so that it can move freely up and down. The center distance of the two connecting pin shafts is equal to the center distance of the waist-shaped long hole and the long strip hole.

[0006] Furthermore, the other end of the hook plate is rotatably mounted on the ear plate seat through a pin shaft adapted to the ear plate seat and the hook plate and a cotter pin I inserted into the end of the pin shaft, and a pin hole for inserting and storing a positioning pin shaft is formed on the plate surface at one end of the hook plate.

[0007] The advantages of the present invention compared with the prior art are:

[0008] 1. This technical solution provides a mounting plate with a baffle installed on the end plate surface of the frame and a lug plate seat on which a hook plate is rotatably installed. Under the action of gravity, the baffle plate is pressed against the positioning pin shaft that positions the hook plate on the lug plate seat, thereby realizing the longitudinal positioning of the hook plate on the hook lifting rod, solving the problem of abnormal unlocking of the hook caused by the large swing of the hook lifting rod under the impact and vibration of the vehicle, thereby ensuring the normal transportation efficiency and order of the railway;

[0009] 2. This technical solution provides a waist-shaped long hole and a rotating channel connected at the lower end on the vertical plate surface of the baffle, so that the two connecting pins can move up and down in the waist-shaped long hole, and the lower connecting pin can move into the long hole through the arc hole, thereby realizing the adjustment of the upper and lower position and angle of the baffle;

[0010] 3. This technical solution makes the up and down movement of the baffle smaller than the length of the positioning pin shaft, thereby preventing the positioning pin shaft from vibrating due to the hook and the impact shaft popping out, which may cause the anti-jump limit device to fail;

[0011] 4. This technical solution provides a pin hole on the plate surface at one end of the hook plate, which is conducive to the insertion and storage of the positioning pin shaft after being pulled out, and prevents the positioning pin shaft from being lost due to random placement;

[0012] 5. This technical solution has a simple structure, safe and reliable performance, and is easy to install and use. It can realize the limiting and anti-jumping function of the upper-acting hook lifting rod without changing the original hook lifting rod and mounting seat structure, thereby improving the safety factor during the use of the hook and ensuring the safety of vehicle operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the structure of the present invention;

[0014] Figure 2 It is a top view of the structure of the present invention;

[0015] Figure 3 This is the baffle rotating state structure of the present invention. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-3 An embodiment of the present invention is described to clearly and completely describe the technical solution. Obviously, the described embodiment is only a part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present invention.

[0018] The limit and anti-jump device for the upper action hook lifting rod, such as Figure 1-3 As shown, it includes a mounting plate 1, a baffle plate 2, an ear plate seat 3 and a hook plate 4. The mounting plate 1 and the ear plate seat 3 located below it are both fixed on the frame end panel surface. One end of the hook plate 4 is hooked on the hook lifting rod 6. The other end of the hook plate 4 is rotatably mounted on the ear plate seat 3 and the hook plate 4 is positioned on the ear plate seat 3 through a positioning pin shaft 5 and a baffle plate 2 located above the ear plate seat 3. The baffle plate 2 is mounted on the mounting plate 1 with adjustable up and down position and angle, and the up and down movement of the baffle plate 2 is less than the length of the positioning pin shaft 5. In the above structure, by setting The mounting plate 1 with the baffle plate 2 installed and the ear plate seat 3 with the hook plate 4 rotatably installed, under the action of gravity, the baffle plate 2 is pressed against the positioning pin shaft 5 that positions the hook plate 4 on the ear plate seat 3, so that the hook plate 4 can longitudinally position the hook lifting rod 6, thereby solving the problem of abnormal unlocking of the hook due to the large swing of the hook lifting rod 6 under the impact and vibration of the vehicle, and ensuring the normal transportation efficiency and order of the railway; the up and down movement of the baffle plate 2 is smaller than the length of the positioning pin shaft 5, so as to prevent the positioning pin shaft 5 from being invalid due to the vibration of the hook and the popping out of the impact shaft, which can lead to the disadvantage of the anti-jump limit device;

[0019] The baffle plate 2 is in an L-shaped structure, and the horizontal plate at the lower end of the baffle plate 2 rests on the positioning pin shaft 5 under the action of gravity. A waist-shaped long hole 7 and a rotating channel 8 are formed on the vertical plate surface of the baffle plate 2, and the lower end of the waist-shaped long hole 7 is connected with the lower end of the rotating channel 8. The rotating channel 8 is formed by a long strip hole 11 parallel to the waist-shaped long hole 7 and an arc hole 12 that transitionally connects the lower end of the waist-shaped long hole 7 with the lower end of the long strip hole 11; the mounting plate 1 is in a U-shaped structure, and one side of the mounting plate 1 is fixed to the end panel surface of the frame, and two connecting pin shafts 9 adapted to the waist-shaped long hole 7 and passing through the through holes at the corresponding positions on the other side wall of the mounting plate 1 and a cotter pin 1 inserted at the end of the connecting pin shaft 9 0 The baffle 2 is installed on the mounting plate 1 so that it can move freely up and down. The center distance between the two connecting pins 9 is equal to the center distance between the waist-shaped long hole 7 and the long strip hole 11, and the angle of the baffle 2 can be adjusted by adjusting the lower connecting pin 9 to move through the arc hole 12 into the long strip hole 11; in the above technical scheme, by providing the waist-shaped long hole 7 and the rotating channel 8 connected at the lower end on the vertical plate surface of the baffle 4, the two connecting pins 9 can move up and down in the waist-shaped long hole 7, and the lower connecting pin 7 can move through the arc hole 12 into the long strip hole 11, thereby realizing the adjustment of the upper and lower position and angle of the baffle 2; during the operation of the vehicle, if Figure 1 As shown, the baffle 2 is pressed against the positioning pin 5 under the action of gravity. Since the up and down movement of the baffle 2 is less than the length of the positioning pin 5 (i.e., the pull-out length of the positioning pin 5), the baffle 2 can only move up and down but cannot rotate, thereby preventing the positioning pin 5 from being ejected due to the vibration and impact of the coupler, causing the anti-jump limit device to fail. When the hook needs to be unhooked, Figure 3 As shown, the baffle 2 only needs to be pushed up to the limit position and rotated to the corresponding angle to pull out the positioning pin 5; in the above structure, the connection between the baffle 2 and the mounting plate 1 can also be achieved by welding the connecting pin 9 and the mounting plate 1 together, and ensuring that the baffle 2 can move up and down freely after welding without any jamming;

[0020] The other end of the hook plate 4 is rotatably mounted on the ear plate seat 3 through a pin shaft 13 adapted to the ear plate seat 3 and the hook plate 4 and a cotter pin Ⅰ14 inserted at the end of the pin shaft 13. A pin hole 15 for inserting and storing the locating pin shaft 5 is formed on the plate surface at one end of the hook plate 4; by providing the pin hole 15 on the plate surface at one end of the hook plate 4, it is convenient to insert and store the locating pin shaft 5 after being pulled out, and prevent the locating pin shaft 5 from being lost due to random placement; the ear plate seat 3 can be two ear plates, or it can be a structure in which the two ear plates are welded into one through a bottom plate, or its structural function can be realized by bending and punching a plate.

[0021] The technical solution has a simple structure, safe and reliable performance, and is easy to install and use. It can realize the limiting and anti-jumping function of the upper-acting coupler lifting rod without changing the original coupler lifting rod and mounting seat structure, thereby improving the safety factor during the use of the coupler and ensuring the safety of vehicle operation. Since the entire limiting and anti-jumping device is arranged under the coupler lifting rod 6, it is less affected by the space limitation on the front side of the vehicle body and has a wide range of applications.

[0022] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A position limiting and anti-jumping device for the upper action hook lifting rod, characterized in that: It comprises a mounting plate (1), a baffle (2), an ear plate seat (3) and a hook plate (4), wherein the mounting plate (1) and the ear plate seat (3) located below the mounting plate (1) are both fixed on the end plate surface of the frame, one end of the hook plate (4) is hooked on the vehicle hook lifting rod (6), the other end of the hook plate (4) is rotatably mounted on the ear plate seat (3) and positioned on the ear plate seat (3) through a positioning pin shaft (5) and a baffle (2) located above the ear plate seat (3), the baffle (2) is mounted on the mounting plate (1) in an adjustable vertical position and angle, and the vertical movement of the baffle (2) is less than the length of the positioning pin shaft (5); The baffle (2) is in an L-shaped structure, and the horizontal plate at the lower end of the baffle (2) is pressed against the positioning pin shaft (5) under the action of gravity. A waist-shaped long hole (7) and a rotating channel (8) are formed on the vertical plate surface of the baffle (2), and the lower end of the waist-shaped long hole (7) is connected to the lower end of the rotating channel (8). The rotating channel (8) is formed by a long strip hole (11) parallel to the waist-shaped long hole (7) and an arc hole (12) that transitionally connects the lower end of the waist-shaped long hole (7) with the lower end of the long strip hole (11). The mounting plate (1) is a U-shaped structure and one side of the mounting plate (1) is fixed to the end panel surface of the frame. Two connecting pins (9) adapted to the waist-shaped long hole (7) and passing through the through holes at corresponding positions on the other side wall of the mounting plate (1) and a split pin (10) inserted into the end of the connecting pin (9) are used to mount the baffle (2) on the mounting plate (1) so that the baffle can be freely moved up and down. The center distance between the two connecting pins (9) is equal to the center distance between the waist-shaped long hole (7) and the long strip hole (11).

2. The position limiting and anti-jumping device for the upper action hook lifting rod according to claim 1 is characterized in that: The other end of the hook plate (4) is rotatably mounted on the ear plate seat (3) through a pin shaft (13) adapted to the ear plate seat (3) and the hook plate (4) and a cotter pin I (14) inserted into the end of the pin shaft (13). A pin hole (15) for inserting and storing the positioning pin shaft (5) is formed on a plate surface at one end of the hook plate (4).

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