CN218294305U

CN218294305U - Rotary vibration damper suitable for railway vehicle

Info

Publication number: CN218294305U
Application number: CN202222076760.3U
Authority: CN
Inventors: 向安波; 池茂儒; 周荻; 温泽峰
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-01-13
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a be suitable for rolling stock's rotary damper, including shock absorber body, rocking arm and connecting rod, the shell is fixed in one side of connecting the mounting panel, the pivot is located the shell, and the symmetry installs two blades, and the one end of pivot is passed through the bearing and is fixed at the center of connecting the mounting panel, and the one end fixed connection of shell and rocking arm is worn out to the other end, the other end of rocking arm is articulated with the one end of connecting rod, it is provided with two baffles still to symmetry in the shell, and two baffles and two blades use the pivot to separate into four inclosed independent cavities in with the shell as the center, and the valve block formula valve system that communicates two adjacent independent cavities is do not installed to the punishment of corresponding position on two baffles. The utility model discloses the required space of installation is little and the installation is nimble, under the circumstances of guaranteeing damping performance, can be according to the suitable adjustment rocking arm length of installation space, can adjust the damping size according to adjusting valve block quantity simultaneously to satisfy rail vehicle's throttle characteristic.

Description

Rotary vibration damper suitable for railway vehicle

Technical Field

The utility model belongs to the technical field of the rail transit hangs, concretely relates to be suitable for rolling stock's rotary damper.

Background

The hydraulic shock absorbers basically used by the prior railway vehicles are all reciprocating shock absorbers, when the hydraulic shock absorbers work, the shock absorber piston moves relative to a cylinder barrel under the pulling and pressing action of a load, the volume change of a chamber generates high-low pressure difference, oil flows into a low-pressure chamber from a high-pressure chamber through a valve under the action of the pressure difference, and the volume change of the high-low pressure chamber is unequal due to the fact that a part of space is occupied by a piston rod, so that the oil excessively flows back to an oil storage cylinder during compression or the oil is insufficient to generate vacuum, and oil is supplemented by the oil storage cylinder during stretching; after the heat is generated by the working cylinder, the heat can contact with the outside to dissipate heat only by passing through three layers of the wall of the working cylinder, the wall of the oil storage cylinder and the wall of the oil storage cylinder; the space required during installation is the linear length of the two nodes, the length of the installed shock absorber can influence the damping characteristic of the shock absorber, and a proper installation position needs to be found according to the installation length of the shock absorber. We have therefore proposed a rotary shock absorber suitable for railway vehicles.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that just to above-mentioned prior art not enough, provide a be suitable for rolling stock's rotary damper, its simple structure, good reliability have that installation space is little, the installation is nimble and good thermal diffusivity simultaneously.

The utility model adopts the technical proposal that: the utility model provides a be suitable for rolling stock's rotary damper, includes shock absorber body, rocking arm and connecting rod, the shock absorber body is including connecting mounting panel, shell, pivot, blade, baffle and valve block formula valve system, the shell is fixed in the one side of connecting the mounting panel, the pivot is located the shell, and two blades are installed to the symmetry, and the one end of pivot is passed through the bearing and is fixed at the center of connecting the mounting panel, and the one end fixed connection of shell and rocking arm is worn out to the other end, the other end of rocking arm is articulated with the one end of connecting rod, it is provided with two baffles still to symmetry in the shell, and two baffles and two blades use the pivot to separate into four inclosed independent cavities in with the shell as the center, and the valve block formula valve system with two adjacent independent cavities intercommunication is installed respectively to the punishment of corresponding position on two baffles.

Preferably, the valve plate of the valve plate type valve system is provided with a plurality of valve plates.

The utility model discloses the required space of installation is little and the installation is nimble, under the circumstances of guaranteeing damping performance, can be according to the suitable adjustment rocking arm length of installation space, can adjust the damping size according to adjusting valve block quantity simultaneously to satisfy rail vehicle's throttle characteristic.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the inside of the present invention;

fig. 3 is a sectional view of the damper body of the present invention.

In the figure: 1. a shock absorber body; 2. a rotating arm; 3. a connecting rod; 101. connecting the mounting plate; 102. a housing; 103. a rotating shaft; 104. a blade; 105. a partition plate; 106. a valve system of valve plate type.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Examples

As shown in fig. 1, fig. 2 and fig. 3, the rotary shock absorber for railway vehicles according to the present embodiment includes a shock absorber body 1, a rotating arm 2 and a connecting rod 3, wherein the shock absorber body 1 includes a connecting mounting plate 101, a housing 102, a rotating shaft 103, a vane 104, a partition plate 105 and a valve plate type valve train 106;

the corner of the connecting mounting plate 101 is provided with a mounting hole for fixedly connecting with a frame of a railway vehicle, one end of the rotating shaft 103 is fixed at the center of the connecting mounting plate 101 through a bearing, the other end penetrates through the shell 102 and is fixedly connected with one end of the rotating arm 2, the rotating shaft 103 is symmetrically formed with blades 104, partition plates 105 are symmetrically formed in the shell 102, when the shell 102 is fixedly mounted on the connecting mounting plate 101, the space enclosed by the shell 102 and the connecting mounting plate 101 is divided into four closed independent cavities by the two blades 104 and the two partition plates 105, the two blades 104 and the two partition plates 105 are distributed in a cross shape in the cross section, the four independent cavities are the same in size, and meanwhile, valve plate type valve systems 106 are respectively mounted at corresponding positions on the two partition plates 105, so that the two independent cavities adjacent to the partition plates 105 are communicated through the valve type valve systems 106; one end of the rotating arm 2 far away from the shock absorber body is hinged with one end of the connecting rod 3, and one end of the connecting rod 3 is connected with the frame in a hanging mode.

The working principle is as follows: when the suspension is displaced, the connecting rod 3 is driven to displace upwards or downwards, the displacement of the connecting rod 3 drives the rotating arm 2 to rotate, the rotating shaft 103 rotates to drive the blades 104 to rotate, the blades 104 rotate at a certain angle along with the rotating shaft 103, the volumes of four independent cavities are changed, so that two high-pressure cavities and two low-pressure cavities are formed, hydraulic oil in the high-pressure cavities enters the low-pressure cavities through the valve plate type valve system 106, damping force is generated when the hydraulic oil passes through the valve plate type valve system 106, the damping force acts on the rotating shaft 103, and is transmitted to the connecting rod 3 after being transmitted to the rotating arm 2 through the rotating shaft 103; the magnitude of damping force can be adjusted by arranging different numbers of valve plates.

By installing the utility model at different positions, different vibration damping functions can be realized;

when the vehicle needs to be controlled to swing, the rotating arm 2 needs to be vertically arranged, and the connecting rod 3 needs to be longitudinally arranged;

when the rolling motion of the vehicle is required to be controlled, the rotating arm 2 is required to be arranged longitudinally, and the connecting rod 3 is required to be arranged vertically;

the transverse arrangement of the utility model can play the functions of a vertical shock absorber and an anti-snake-shaped shock absorber;

the vertical arrangement of the utility model can play the functions of a vertical shock absorber and a transverse shock absorber;

be about for the utility model discloses vertically arrange the function that can play horizontal shock absorber and anti snakelike shock absorber.

The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and the utility model provided by the present invention should be covered within the protection scope of the present invention.

Claims

1. A rotary shock absorber for a railway vehicle, characterized by: including shock absorber body (1), rocking arm (2) and connecting rod (3), shock absorber body (1) is including connecting mounting panel (101), shell (102), pivot (103), blade (104), baffle (105) and valve block formula valve system (106), one side of connecting mounting panel (101) is fixed in shell (102), pivot (103) are located shell (102), and the symmetry installs two blade (104), and the center of connecting mounting panel (101) is fixed through the bearing to the one end of pivot (103), and the one end fixed connection of shell (102) and rocking arm (2) is worn out to the other end, the other end of rocking arm (2) is articulated with the one end of connecting rod (3), still the symmetry is provided with two baffle (105) in shell (102), and two baffle (105) and two blade (104) use pivot (103) to separate into four inclosed independent cavities in with shell (102) as the center, and valve block formula valve block (106) with two adjacent independent cavities intercommunication are installed respectively to the corresponding position punishment on two baffle (105).

2. A rotary shock absorber for railway vehicles according to claim 1, wherein: the valve plate of the valve plate type valve system (106) is provided with a plurality of valve plates.