Railway wagon torsion type endless sensing valve mounting and adjusting structure

Abstract

This invention discloses an installation and adjustment structure for a torsion-type stepless sensing valve for railway freight cars. It includes a torsion-type stepless sensing valve, a sensing valve mounting base assembly, a baffle, and an adjustment device. The sensing valve is mounted and fixed on the sensing valve mounting base assembly. The sensing valve mounting base assembly is bolted to the end of the bolster. The baffle and adjustment device are mounted and fixed to the outside of the side frame. A sensing valve spring lever has one end located at the sensing valve end and the other end at the baffle and adjustment device end. This invention supports the installation of the sensing valve on the outside of the side frame, making installation and maintenance simple and convenient. The working status of the sensing valve can be directly observed, ensuring driving safety. Simultaneously, it frees up space inside the side frame, providing space for the installation and operation of other devices. Longitudinal and vertical adjustment devices ensure working accuracy, and the initial and working states of the sensing valve can be adjusted according to different car weights, achieving interchangeability between the car body and bogie. It can simulate loaded car positions and manually switch between empty and loaded cars at any time.

Description

Technical Field

[0001] This invention belongs to the field of railway freight car equipment design and manufacturing technology, and in particular to the field of railway freight car braking device design technology. Specifically, it relates to an installation and adjustment structure for a torsion-type stepless sensing valve for railway freight cars. Background Technology

[0002] To meet the braking rate requirements of railway freight cars in both empty and loaded states, a sensor valve is generally installed in the braking system of railway freight cars to automatically adjust the brake cylinder pressure in these states. Currently, there are two types of sensor valves: two-stage and stepless. Domestically, stepless sensor valves are more commonly used, while both types are used in foreign vehicles. Stepless sensor valves are more frequently used in container cars.

[0003] One type of stepless valve is a contact-type structure, typically mounted at the rear end of the car body's traction beam and fixed to the car body. A contact plate is installed between the two side frames of the bogie, and the relative displacement between the car body and the contact plate adjusts the brake cylinder pressure. Another type is a torsion-type stepless valve, which operates on a different principle than the contact-type valve and cannot be installed on the car body. It is typically installed on the inner side of the bolster of the two side frames of the bogie, with a fixed baffle installed on the side frame. The relative displacement between the bolster and the side frame under different car body loads drives a torsion spring to rotate, thus adjusting the brake cylinder pressure. With the development of railway freight car parking brakes and integrated braking technology, as well as the widespread application of radial structures in bogies, the space inside the side frames is no longer sufficient to provide installation positions for stepless valves.

[0004] Therefore, a torsion-type stepless sensor valve installation and adjustment structure, which is installed on the outside of the side frame, fixed to the end of the bolster, and whose brake cylinder pressure is adjusted by the relative movement of the side frame and the bolster, is of practical significance for solving the problem of insufficient basic braking space and promoting the development of railway freight car parking brake systems. Summary of the Invention

[0005] This invention discloses an installation and adjustment structure for a torsion-type stepless sensor valve for railway freight cars. The purpose of this invention is to provide an installation and adjustment structure for a torsion-type stepless sensor valve that is installed on the outside of the side frame, fixed to the end of the bolster, and adjusts the brake cylinder pressure by the relative movement of the side frame and the bolster. This invention solves the problems of insufficient braking space and inconvenient adjustment in existing railway freight car mounting foundations.

[0006] This invention is achieved through the following technical solution:

[0007] A torsion-type stepless sensing valve installation and adjustment structure for railway freight cars includes a torsion-type stepless sensing valve, characterized in that: it further includes a sensing valve mounting base assembly, a baffle, and an adjustment device, wherein the sensing valve is mounted and fixed on the sensing valve mounting base assembly; wherein, the sensing valve mounting base assembly is fixed to the end of the bolster by bolts, the baffle and adjustment device are mounted and fixed to the outside of the side frame, and a sensing valve spring lever is provided at one end of the sensing valve end and at the other end of the baffle and adjustment device end.

[0008] Furthermore, the sensor valve mounting base is composed of a vertical seat plate and a horizontal seat plate that are fixed perpendicularly to each other. The vertical seat plate and the horizontal seat plate are respectively fixed to the vertical surface and the upper surface of the horizontal end of the rocker arm by bolts. A through hole is provided in the middle of the vertical seat plate for the sensor valve spring lever to pass through. The sensor valve is installed and fixed by covering the through hole.

[0009] Furthermore, the vertical seat plate and the horizontal seat plate are connected by a reinforcing rib welded to the right-angle side.

[0010] Furthermore, the baffle and adjustment device consists of a baffle seat, a longitudinal adjustment plate, a connecting plate, and a limiting device; the baffle seat is welded and fixed to the outside of the side frame; the connecting plate and the longitudinal adjustment plate are fixed to the baffle seat by bolts; the connecting plate is provided with a spring lever limiting working opening with an open structure, the spring lever limiting working opening is matched with the through hole on the vertical seat plate formed by the sensor valve mounting seat and is located on the same horizontal axis to limit the spring lever passing through the sensor valve; a limiting device is provided on the outside of the spring lever limiting working opening; the limiting device consists of perforated lugs on both sides of the spring lever limiting working opening and a pin detachably set on the two perforated lugs.

[0011] Furthermore, a vertical adjustment plate is provided on one side of the spring lever limiting working opening of the connecting plate by bolt connection, and the vertical adjustment plate has an opening that matches the spring lever limiting working opening.

[0012] Furthermore, the longitudinal adjustment plate is bolted between the mounting base and the baffle base, and the longitudinal position of the baffle can be adjusted by adjusting the thickness of the longitudinal adjustment plate.

[0013] Furthermore, a simulated heavy vehicle position opening is also provided above the connecting plate spring lever limiting working opening for testing and verifying the working condition of the sensing valve under simulated heavy vehicle conditions.

[0014] Furthermore, the sensor valve mounting base is further equipped with a protective cover consisting of a mounting frame structure on the outside of the sensor valve.

[0015] The installation and adjustment structure of the stepless sensing valve of the present invention has the following advantages:

[0016] Compared with the existing stepless sensor valve installation structure, this installation structure supports the installation of the sensor valve on the outside of the side frame, making installation and maintenance simple and convenient. During vehicle operation, the working status of the sensor valve can be directly observed to ensure driving safety. At the same time, it frees up space inside the side frame, providing space for the installation and operation of bogie radial devices and parking brake devices.

[0017] Compared with the existing sensor valve mounting structure, this mounting structure is equipped with longitudinal and vertical adjustment devices, which can ensure that the sensor valve has high working accuracy. The initial state and working state of the sensor valve can be adjusted according to different vehicle weights, and the interchangeability of the car body and bogie can be realized.

[0018] Compared with existing sensor valve mounting structures, this mounting structure can simulate a loaded vehicle position and can manually switch between empty and loaded vehicles at any time, providing convenience for vehicle type testing and verification testing. Attached Figure Description

[0019] Figure 1 This is a front view of the installation and adjustment structure of the stepless sensor valve of the present invention;

[0020] Figure 2 This is a top view of the installation and adjustment structure of the stepless sensor valve of the present invention;

[0021] Figure 3 This is an isometric view of the installation and adjustment structure of the stepless sensor valve of the present invention;

[0022] Figure 4 This is a front view of the mounting base of the present invention;

[0023] Figure 5 This is an isometric view of the mounting base assembly of the present invention;

[0024] Figure 6 This is a front view of the baffle and adjustment device of the present invention;

[0025] Figure 7 This is an isometric view of the baffle and adjustment device of the present invention;

[0026] Figure 8 This is a schematic diagram of the installation of the present invention.

[0027] In the diagram, 1 is the sensor valve mounting base, 2 is the baffle and adjustment device, 3 is the protective cover, and 4 is the sensor valve; 1.1 is the vertical seat plate, 1.2 is the horizontal seat plate, 1.3 is the stiffening plate, 2.1 is the baffle seat, 2.2 is the longitudinal adjustment plate, 2.3 is the connecting plate, 2.3.1 is the simulated heavy vehicle position opening, 2.3.2 is the spring lever limiting working opening, 2.4 is the vertical adjustment plate, 2.5 is the limiting device, and 4.1 is the sensor valve spring lever. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. These specific embodiments are further explanations of the principles of the present invention and are not intended to limit the present invention in any way. Any technology that is the same as or similar to the present invention does not exceed the scope of protection of the present invention.

[0029] Refer to the attached diagram.

[0030] As shown in the figure, the installation and adjustment structure of the railway freight car torsion-type stepless sensing valve of the present invention consists of a sensing valve mounting seat 1, a baffle and an adjustment device 2, and a protective cover 3 installed on the outside of the sensing valve 4.

[0031] The sensor valve mounting base assembly 1 is welded together from a vertical seat plate 1.1, a horizontal seat plate 1.2, and a stiffening plate 1.3, and is fixed to the end of the bolster by bolts.

[0032] The vertical seat plate 1.1 is fixed to the vertical surface of the end of the bolster by one bolt, and the horizontal seat plate is fixed to the upper surface of the end of the bolster by two bolts.

[0033] The baffle and adjustment device 2 consists of a baffle seat 2.1, a longitudinal adjustment plate 2.2, a connecting plate 2.3, a vertical adjustment plate 2.4, and a limiting device 2.5.

[0034] Among them, the baffle seat 2.1 is welded together from a horizontal plate and a vertical plate. It is welded to the outside of the side frame. The horizontal plate is located on the upper plane of the side frame, and the vertical plate is located on the outer facade of the side frame. Both are welded and fixed to the side frame.

[0035] The longitudinal adjustment plate 2.2 and the connecting plate 2.3 are fixed to the baffle seat 2.1 by bolts. The longitudinal position of the connecting plate 2.3 relative to the sensor valve mounting seat 1 can be adjusted by adjusting the thickness of the longitudinal adjustment plate 2.2.

[0036] The vertical adjustment plate 2.4 is made of non-metallic material and is fixed by bolts and connecting plate 2.3. The vertical adjustment plate 2.4 has an opening that matches the spring lever limiting working opening 2.3.2. Generally, the opening of the vertical adjustment plate 2.4 can be narrower than the spring lever limiting working opening 2.3.2. The opening of the vertical adjustment plate 2.4 is arranged parallel to the spring lever limiting working opening 2.3.2. The vertical adjustment plate 2.4 can be adjusted in vertical position by bolts connected to the connecting plate 2.3, so that the opening of the vertical adjustment plate 2.4 is appropriately horizontally offset from the spring lever limiting working opening 2.3.2 to achieve adjustment of the sensor valve spring lever 4.1.

[0037] A limiting device 2.5 is provided at the end of the connecting plate 2.3. The limiting device 2.5 consists of two perforated lugs and a cotter pin, which is used to limit the lateral displacement of the sensing valve spring lever 4.1 during vehicle operation.

[0038] The installation and adjustment structure of this invention places the sensor valve 4 on the outside of the side frame, freeing up space for the braking system arrangement on the inside of the side frame. This provides favorable conditions for the development and application of braking technologies such as bogie radial devices, integrated braking, and parking brakes. Placing the sensor valve 4 on the outside of the side frame also improves vehicle assembly and maintenance processes, allowing for real-time and intuitive observation of the sensor valve's operating status, thus ensuring vehicle operational safety.

[0039] The installation and adjustment structure of this invention makes full use of the special structure and limited space at the end of the rocker bolster. The mounting base 1 is designed as a combination of vertical and horizontal plates, which are fixed to the two end faces of the rocker bolster respectively, ensuring reliable installation strength. The baffle and adjustment device 2 is equipped with a longitudinal adjustment plate and a vertical adjustment plate to ensure high installation and working accuracy of the sensor valve.

[0040] The protective cover 3 is fixed to the vertical seat plate 1.1 and the horizontal seat plate 1.2 of the mounting base by bolts, which protects the structure of the sensing valve and ensures its stable operation.

[0041] The working principle of the railway freight car torsion-type stepless sensor valve installation and adjustment structure of the present invention is as follows: The sensor valve 4 is fixed to the mounting base assembly 1 by bolts, and the mounting base assembly 1 is fixed to the end of the bolster. The sensor valve 4 moves synchronously with the bolster. The baffle and adjustment device 2 are fixed to the outside of the side frame. The sensor valve spring lever 4.1 passes through the working position opening of the vertical adjustment plate 2.4 and is installed in the spring lever limiting working opening 2.3.2 on the connecting plate 2.3. Its lateral displacement is limited by the limiting device 2.5. The sensor valve spring lever 4.1 moves synchronously with the side frame. Under different load conditions of the vehicle, the change in the compression of the bogie spring will cause a certain vertical displacement difference between the side frame and the bolster. This displacement difference will be synchronously transferred to the sensor valve spring lever 4.1 and transmitted to the sensor valve 4. The sensor valve spring lever 4.1 is twisted upward by a swing angle relative to the sensor valve 4. The air pressure passing through it is controlled by the internal structure of the sensor valve to realize stepless adjustment of the brake cylinder pressure.

[0042] After the sensor valve is assembled, the longitudinal distance between the connecting plate 2.3 and the sensor valve is adjusted by the longitudinal adjustment plate 2.2 to control the swing angle of the sensor valve spring lever 4.1 during empty and loaded vehicle switching, so as to achieve the purpose of matching the brake cylinder pressure with the vehicle weight; the initial position of the sensor valve spring lever 4.1 is adjusted by the vertical adjustment plate 2.4 to adjust the initial pressure of the sensor valve for vehicles with different self-weights, so as to realize the interchangeability of the car body and bogie.

[0043] In addition to the spring lever limiting working opening 2.3.2, the connecting plate 2.3 also has a simulated heavy vehicle position opening 2.3.1, which is used to test and verify the working condition of the sensing valve by simulating the heavy vehicle working condition during production and testing.

Claims

1. An installation and adjustment structure for a torsion-type stepless sensing valve for railway freight cars, comprising a torsion-type stepless sensing valve, characterized in that: It also includes a sensor valve mounting base assembly, a baffle and an adjustment device, with the sensor valve mounted and fixed on the sensor valve mounting base assembly; wherein, the sensor valve mounting base assembly is fixed to the end of the rocker arm by bolts, the baffle and adjustment device are mounted and fixed on the outside of the side frame, and one end of the sensor valve spring lever is set at the sensor valve end and the other end is set at the baffle and adjustment device end; The sensor valve mounting base consists of a vertical seat plate and a horizontal seat plate that are fixed perpendicularly to each other. The vertical seat plate and the horizontal seat plate are respectively fixed to the vertical surface and the upper surface of the horizontal end of the rocker arm by bolts. A through hole is provided in the middle of the vertical seat plate for the sensor valve spring lever to pass through. The sensor valve is installed and fixed by covering the through hole. The baffle and adjustment device consists of a baffle seat, a longitudinal adjustment plate, a connecting plate, and a limiting device. The baffle seat is welded and fixed to the outside of the side frame. The connecting plate and the longitudinal adjustment plate are fixed to the baffle seat with bolts. The connecting plate has a spring lever limiting working opening with an open structure. The installation position of the spring lever limiting working opening matches the through hole of the vertical seat plate formed by the sensor valve mounting seat and is located on the same horizontal axis to limit the spring lever passing through the sensor valve. A vertical adjustment plate is bolted to one side surface of the spring lever limiting working opening. The vertical adjustment plate has an opening that matches the spring lever limiting working opening. A limiting device is set on the outside of the spring lever limiting working opening. The limiting device consists of perforated lugs on both sides of the spring lever limiting working opening and a pin detachably set on the two perforated lugs. The longitudinal adjustment plate is bolted between the mounting seat and the baffle seat. The longitudinal position of the baffle is adjusted by adjusting the thickness of the longitudinal adjustment plate.

2. The installation and adjustment structure of the railway freight car torsion-type stepless sensing valve according to claim 1, characterized in that: The vertical seat plate and the horizontal seat plate are connected by a reinforcing rib welded to the right-angle side.

3. The installation and adjustment structure of the railway freight car torsion-type stepless sensing valve according to claim 2, characterized in that: Above the spring lever limiting working opening of the connecting plate, a simulated heavy vehicle position opening is also provided for testing and verifying the working condition of the sensing valve under simulated heavy vehicle conditions.

4. The installation and adjustment structure of the railway freight car torsion-type stepless sensing valve according to claim 2, characterized in that: The sensor valve mounting base consists of an upper part and a protective cover with a mounting frame structure covering the outside of the sensor valve.

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