CN218000008U

CN218000008U - Buffer valve block based on vehicle anti-bending system

Info

Publication number: CN218000008U
Application number: CN202220294815.5U
Authority: CN
Inventors: 陈凌宇; 谭明敏; 姜宇飞; 刘佼龙; 杨冠男
Original assignee: ZHUZHOU GOFRONT EQUIPMENT CO LTD; Zhuzhou Jiufang Equipment Driving Technology Co ltd
Current assignee: ZHUZHOU GOFRONT EQUIPMENT CO LTD; Zhuzhou Jiufang Equipment Driving Technology Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-12-09
Anticipated expiration: 2032-02-14

Abstract

The utility model relates to a low floor vehicle spare part design field discloses a buffer valve piece based on among vehicle anti-bending system, set up four group's liquid accuse subassemblies in the main valve block main part, thereby two liang of series connection of liquid accuse subassembly are used for switching on the oil pipe way of left and right sides hydro-cylinder, utilize the functional element that has different functions on the liquid accuse subassembly, oil mass exchange between the control oil pocket of both sides around the accurate control bogie, through the buffer valve piece, absorb impact in small, guarantee that the hydraulic oil flow is steady, ensure that the vehicle operation is stable not transfinite, improve the travelling comfort by bus.

Description

Buffer valve block based on vehicle anti-bending system

Technical Field

The utility model relates to a low floor car spare part design field specifically relates to a cushion valve piece based on in the vehicle anti-bending system.

Background

In the low-floor vehicle, the front side and the rear side of each bogie are respectively provided with a control oil cylinder which is completely the same, and the front cavity and the rear cavity of the two control oil cylinders are connected with the front cavity and the rear cavity of the oil cylinder on the two sides of the other bogie. The vehicle travel is divided into four states: straight travel, drive into a curve, and drive into a curve. When the vehicle enters a curve to run, when the oil quantity of the control oil cylinders arranged on the two sides of the bogie is exchanged, the flow rate is easy to change suddenly, so that the running of the vehicle is unstable, and the riding feeling of passengers is influenced.

Prior art document CN201720779357.3 discloses a roll press accumulator buffer valve block, comprising: the oil inlet oil way and the oil outlet oil way are arranged between the oil cylinder and the energy accumulator in parallel, a one-way valve is arranged on the oil inlet oil way, and an adjustable throttle valve is arranged on the oil outlet oil way. The technical field of the application of the prior art document is different from the technical field of the application, and meanwhile, the prior art document mainly controls the oil circuit exchange of an oil cylinder, and the specific structure of the prior art document is different from the application.

The prior art does not disclose a main valve block used in an anti-bending system of a low-floor vehicle, and the low-floor vehicle has the following problems when running in a curve:

the first disadvantage is that: relative position deviation can occur between the vehicle bodies and even exceed a limited driving area; the large relative position deviation occurs between the car bodies, and the limit requirement is wider;

the second disadvantage is that: the vehicle body has large deflection impact, obvious noise and low comfort;

the third disadvantage is that: under the rescue pushing action, the relative bending phenomenon can occur between the vehicle bodies.

Disclosure of Invention

The utility model provides a technical problem lie in overcoming prior art's defect, provide a cushion valve piece based on among the vehicle bending resistance system.

The purpose of the utility model is realized through the following technical scheme:

the buffering valve block comprises a main body, wherein a first interface and a second interface which are connected with a first oil cylinder are arranged on the surface of the main body; the main body is internally and correspondingly provided with a first hydraulic control assembly, a second hydraulic control assembly, a third hydraulic control assembly and a fourth hydraulic control assembly which are connected with the four interface pipelines; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttle valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly is connected with the third hydraulic control assembly through a pipeline, and the second hydraulic control assembly is connected with the fourth hydraulic control assembly through a pipeline.

Furthermore, two pressure limiting valve mounting holes are respectively arranged on the symmetrical first side surface and the symmetrical second side surface of the main body.

Further, two pressure limiting valve mounting holes on the same side surface of the main body are arranged diagonally.

Furthermore, two one-way valve mounting holes and a throttle valve mounting hole are respectively arranged on a third side surface and a fourth side surface of the main body, which are symmetrical.

Further, the holes of the check valve mounting hole and the throttle valve mounting hole are provided as stepped holes, and the diameter of the orifice is larger than the inner diameter of the hole.

Further, two one-way valve mounting holes and throttle valve mounting holes on the same side surface are symmetrically arranged.

Furthermore, plugs are correspondingly arranged on the first interface, the second interface, the third interface and the fourth interface;

more closely, the end cap is connected with each interface through threads.

Furthermore, a fifth interface and a sixth interface which are connected with the external main valve block are arranged on the main body.

Furthermore, the main body is provided with a rust-proof layer.

Compared with the prior art, the utility model discloses the core part of buffer valve piece conduct anti-bending system installs in four module trolley-bus automobile body below. Each half train is equipped with 2 cushion valve blocks, each of which is responsible for one bogie. By controlling the flow speed of oil exchange generated by the telescopic motion of each steering oil cylinder in the turning process of the vehicle body, the transverse impact and the acceleration of the vehicle body during turning are reduced, and the comfort is improved.

It has the following beneficial effects:

1) When oil liquid of the oil cylinder between the two bogies is alternately replaced, the oil quantity is ensured to be stable, and the steering angles of the two bogies are ensured to be consistent when the vehicle turns, so that stable turning is realized;

2) Providing passenger ride comfort;

3) The running of the vehicle does not exceed the limit.

Drawings

Fig. 1 is a schematic structural diagram of a buffer valve block in a vehicle anti-bending system according to the present invention;

fig. 2 is a top view of the buffer valve block in the vehicle anti-bending system according to the present invention;

fig. 3 is the utility model discloses based on each valve pipe connection structure sketch map on the buffer valve piece among the vehicle anti-bending system.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example 1

As shown in fig. 1, a buffering valve block in a vehicle-based anti-bending system is provided, and comprises a main body 1, wherein a first interface 20 and a second interface which are connected with a first oil cylinder 2 are arranged on the surface of the main body 1; the main body 1 is internally and correspondingly provided with a first hydraulic control component 4, a second hydraulic control component 5, a third hydraulic control component 6 and a fourth hydraulic control component 7 which are connected with four interface pipelines; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttle valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly 4 is connected with the third hydraulic control assembly 6 through a pipeline, and the second hydraulic control assembly 5 is connected with the fourth hydraulic control assembly 7 through a pipeline.

For ease of understanding, the following description sets forth three valves in a hydraulically controlled assembly:

1. the check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type. The straight-through one-way valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms of threaded connection, plate connection and flange connection.

2. A throttle valve is a valve that controls the flow of fluid by changing the throttle cross-section or throttle length. The throttle valve and the one-way valve are connected in parallel to form the one-way throttle valve.

3. The pressure limiting valve is used for limiting the oil pressure of the lubricating system to a specified value. The working principle is as follows: when the oil pressure in the lubricating oil line exceeds the specified value, the pressure limiting valve is opened, and the redundant lubricating oil flows back to the oil pan or the oil inlet of the oil pump, so that the oil pressure is reduced. The higher the oil pressure is, the larger the opening of the pressure limiting valve is, the more the lubricating oil flows back to the oil pan, and the more the oil pressure is reduced. When the oil pressure of the lubricating system is reduced to normal pressure, the pressure limiting valve is reset under the action of the spring.

In the anti-bending system, two sides of each bogie are respectively provided with a same control oil cylinder, and the two control oil cylinders are connected with the front cavity and the rear cavity and are connected with the oil cylinders on the two sides of the other bogie through two hydraulic control assemblies which are connected in series in a buffer valve block.

The anti-buckling system is a closed hydraulic system. The hydraulic circuit is mechanically divided into two chambers Z1 and Z2, which represent the left and right turns of the trolley.

One side of the buffer valve block is connected with the Z1 and Z2 oil ways of the main valve block, the other side of the buffer valve block is connected with 2 steering cylinders of the same bogie, and oil in and out of 2 cavities of the steering cylinders must pass through the buffer valve block. A throttle valve and a pressure limiting valve are arranged in the buffer valve block, and the action of the steering oil cylinder can be controlled by adjusting the flow of oil liquid.

The buffer valve block is used as a core component of the anti-bending system and is arranged below the four-module electric car body. Each half train is equipped with 2 cushion valve blocks, each of which is responsible for one bogie. When the oil in the oil cylinder 2 enters the oil cylinder 3 through the hydraulic control assembly 4 and the hydraulic control assembly 6, the oil in the oil cylinder 3 enters the oil cylinder 2 through the hydraulic control assembly 7 and the hydraulic control assembly 5. Oil exchange in the oil cylinder 2 and the oil cylinder 3 is controlled through the buffer valve block, so that hydraulic pressure impact of a system is reduced, and stable turning of a vehicle body is ensured.

The control assembly in the buffer valve block is used for controlling the flow speed of oil exchange generated by the telescopic motion of each steering oil cylinder in the turning process of the vehicle body, so that the transverse impact and the acceleration of the vehicle body during turning are reduced, and the running stability and the comfort of the vehicle are improved.

Example 2

The buffering valve block comprises a main body 1, wherein a first interface 20 and a second interface which are connected with a first oil cylinder 2 are arranged on the surface of the main body 1; the main body 1 is internally and correspondingly provided with a first hydraulic control component 4, a second hydraulic control component 5, a third hydraulic control component 6 and a fourth hydraulic control component 7 which are connected with four interface pipelines; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttle valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly 4 is connected with the third hydraulic control assembly 6 through a pipeline, and the second hydraulic control assembly 5 is connected with the fourth hydraulic control assembly 7 through a pipeline.

In this embodiment, two pressure limiting valve mounting holes are respectively disposed on the first side surface and the second side surface of the main body 1. The four pressure limiting valves 10 are respectively and correspondingly arranged in the pressure limiting valve mounting holes, and the adjusting ends of the pressure limiting valves are displaced outside the main body so as to facilitate real-time adjustment. In order to facilitate the pipeline layout of the buffer valve block main body 1, the pressure limiting valve can be arranged at the diagonal position on the side surface of the main body 1.

Example 3

The buffering valve block comprises a main body 1, wherein a first interface 20 and a second interface which are connected with a first oil cylinder 2 are arranged on the surface of the main body 1; the main body 1 is internally and correspondingly provided with a first hydraulic control component 4, a second hydraulic control component 5, a third hydraulic control component 6 and a fourth hydraulic control component 7 which are connected with four interface pipelines; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttling valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly 4 is connected with the third hydraulic control assembly 6 through a pipeline, and the second hydraulic control assembly 5 is connected with the fourth hydraulic control assembly 7 through a pipeline.

The third embodiment differs from the other embodiments in that: two check valve mounting holes 80 and a throttle valve mounting hole 90 are respectively arranged on the third side surface and the fourth side surface of the main body which are symmetrical. The check valve 8 and the throttle valve 9 are correspondingly inserted into the mounting holes in an inserting mode, because the main bodies of the check valve 8 and the throttle valve 9 are all inserted into the main body 1, the check valve mounting holes and the throttle valve mounting holes are arranged to be stepped holes, the diameter of the hole opening is larger than the diameter of the hole opening, and the check valve connecting port is convenient to connect with a pipeline. Simultaneously, for easy to assemble and make overall structure arrange in order, be symmetrical setting with two check valve mounting holes and choke valve mounting hole on the same side surface.

Example 4

The buffering valve block comprises a main body 1, wherein a first interface 20 and a second interface which are connected with a first oil cylinder 2 are arranged on the surface of the main body 1; a first hydraulic control assembly 4, a second hydraulic control assembly 5, a third hydraulic control assembly 6 and a fourth hydraulic control assembly 7 which are connected with the four interface pipelines are correspondingly arranged in the main body 1; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttling valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly 4 is connected with the third hydraulic control assembly 6 through a pipeline, and the second hydraulic control assembly 5 is connected with the fourth hydraulic control assembly 7 through a pipeline.

The salient points of the embodiment are as follows: the first interface, the second interface, the third interface and the fourth interface are correspondingly provided with plugs. Before the buffer valve block is not installed or in other unused states, a dustproof sealing device can be arranged on a connecting port between the buffer valve block and the outside. In order to facilitate operation and prevent dust, the sealing device generally adopts a plug, and the plug can be connected with the interface through a thread or can be directly sleeved on the interface.

Example 5

In this embodiment, the main body 1 is further provided with a fifth port and a sixth port connected to an external mechanism (a main valve block in the bending resistance system). The fifth connecting port is connected with a pipeline between the hydraulic control assembly 4 and the hydraulic control assembly 6, the sixth connecting port is connected with a pipeline between the hydraulic control assembly 5 and the hydraulic control assembly 7, oil change of oil cylinders on two sides of the bogie is controlled through the buffer valve block and the main valve block, and oil change consistency is guaranteed.

Example 6

The buffering valve block comprises a main body 1, wherein a first interface 20 and a second interface which are connected with a first oil cylinder 2 are arranged on the surface of the main body 1; a first hydraulic control assembly 4, a second hydraulic control assembly 5, a third hydraulic control assembly 6 and a fourth hydraulic control assembly 7 which are connected with the four interface pipelines are correspondingly arranged in the main body 1; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttle valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly 4 is connected with the third hydraulic control assembly 6 through a pipeline, and the second hydraulic control assembly 5 is connected with the fourth hydraulic control assembly 7 through a pipeline.

In the embodiment, the main body of the buffering sliding block is provided with the antirust layer so that the buffering sliding block can have a good antirust effect after being installed.

It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The buffering valve block based on the vehicle anti-bending system is characterized by comprising a main body, wherein a first interface and a second interface which are connected with a first oil cylinder are arranged on the surface of the main body; the main body is internally and correspondingly provided with a first hydraulic control assembly, a second hydraulic control assembly, a third hydraulic control assembly and a fourth hydraulic control assembly which are connected with the four interface pipelines; the four hydraulic control assemblies have the same structure, and each hydraulic control assembly comprises a one-way valve, a throttle valve and a pressure limiting valve which are arranged in parallel; the first hydraulic control assembly is connected with the third hydraulic control assembly through a pipeline, and the second hydraulic control assembly is connected with the fourth hydraulic control assembly through a pipeline.

2. The cushion valve block in the vehicle bending-resistant system according to claim 1, wherein two pressure limiting valve mounting holes are respectively formed on a first side surface and a second side surface of the main body, which are symmetrical.

3. The cushion valve block in the vehicle anti-buckling system according to claim 2, wherein two pressure limiting valve mounting holes on the same side surface of the main body are diagonally arranged.

4. The cushion valve block in the vehicle-based anti-buckling system according to claim 1, wherein two check valve mounting holes and a throttle valve mounting hole are respectively formed on a third side surface and a fourth side surface of the main body which are symmetrical.

5. The cushion valve block in the vehicle bending resistant system according to claim 4, wherein the holes of the check valve mounting hole and the throttle valve mounting hole are provided as stepped holes, and the diameter of the hole opening is larger than the diameter of the hole.

6. The cushion valve block in the vehicle-based anti-buckling system according to claim 5, wherein the two check valve mounting holes and the throttle valve mounting hole on the same side surface of the main body are symmetrically arranged.

7. The cushion valve block in the vehicle anti-bending system according to claim 1, wherein plugs are correspondingly arranged on the first interface, the second interface, the third interface and the fourth interface.

8. The cushion valve block of claim 7, wherein the plug is threaded to each of the ports.

9. The cushion valve block in the vehicle bending-resistant system according to claim 1, wherein a fifth port and a sixth port connected with an external main valve block are further arranged on the main body.

10. The cushion valve block of claim 1, wherein the body is provided with a rust resistant layer.