CN212401169U

CN212401169U - Wheel type mechanical gas-liquid braking system liquid path exhaust device

Info

Publication number: CN212401169U
Application number: CN202021124855.2U
Authority: CN
Inventors: 陈海军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-01-26
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a wheeled machinery gas-liquid braking system liquid way exhaust apparatus, include: the brake fluid pot is communicated with a fluid inlet of the oil pump, the oil pump is communicated with the liquid separator through a pipeline, and a pressure gauge and a pressure reducing valve are connected in series on the pipeline; the liquid separator comprises a liquid separating cavity and a plurality of liquid path oil pipes connected with the liquid separating cavity, and the liquid separating cavity is of a cavity structure and is connected with the pipelines. The utility model discloses can alone operate, and need not start engine when wheel mechanical liquid way braking system exhausts, labour saving and time saving gets rid of this trouble. The maintenance exhaust standard is ensured, the rush repair efficiency is improved, the problems of overlong exhaust time and poor effect of a hydraulic path of an engineering machinery gas-liquid braking system are solved, and the safety during maintenance operation is improved. The utility model discloses an integration, miniaturization, it is easy and simple to handle, liquid way oil pipe receive and releases fast, portable and quick operation.

Description

Wheel type mechanical gas-liquid braking system liquid path exhaust device

Technical Field

The utility model relates to a wheeled mechanical braking technical field, concretely relates to wheeled mechanical gas-liquid braking system liquid way exhaust apparatus.

Background

Most of wheel-type machines adopt a gas-liquid braking system, and a hydraulic plunger of a gas-liquid master pump is pushed by air pressure in the braking process, so that brake fluid is pressurized and then transmitted to a brake to brake the machine. In the operation process, the liquid path brake system is frequently used and has high failure rate, most failures are caused by the fact that air enters the brake liquid path, the brake performance is reduced, even no brake is generated, and the quality of the brake system is directly related to the safety of personnel and people.

The brake system works continuously for a long time, rubber sealing parts of the wheel type mechanical liquid path brake system are easy to age and deteriorate, air enters an oil path, braking is not flexible, and the liquid path of the brake system needs to be exhausted in time. In general, when exhausting, a lot of manpower is needed, and an operator and a repairer are needed to cooperate (2-3 persons); enough air pressure and brake fluid are ensured, so that the vehicle can be operated safely; and long time consuming, the brake caliper of gas-liquid braking system totally sixteen bleeder screws, need every bleeder screw to exhaust one by one repeatedly during the exhaust, and the exhaust effect is not good moreover, brings very big difficulty for quick restoration.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a wheeled machinery gas-liquid braking system liquid way exhaust apparatus to solve the technical problem who proposes in the background art.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

a wheel type mechanical gas-liquid braking system liquid path exhaust device comprises: the brake fluid pump is communicated with a fluid inlet of the oil pump, the oil pump is communicated with the fluid separator through a pipeline, and a pressure gauge and a pressure reducing valve are connected in series on the pipeline;

the liquid separator comprises a liquid separating cavity and a plurality of liquid path oil pipes connected with the liquid separating cavity, and the liquid separating cavity is of a cavity structure and is connected with the pipelines.

Furthermore, the liquid path oil pipe is detachably connected with the liquid distribution cavity.

Further, the liquid way oil pipe with divide the liquid chamber and pass through quick-operation joint plug and draw and be connected, quick-operation joint is including the public head and the female head that match each other, and public head is installed on dividing the liquid chamber, and female head is installed on liquid way oil pipe's both ends.

Further, the model of the quick joint is DZKZE 026.

Furthermore, divide the sap cavity to be cylindric, be provided with on the lateral wall with the connecting pipe of pipe connection, quick-operation joint's joint is circumference array evenly distributed and is in divide on the upper and lower terminal surface of sap cavity.

Furthermore, 8 male heads are arranged on the end face of each side of the liquid distribution cavity.

Furthermore, the pressure-bearing range of the liquid path oil pipe is 5MPa, and the diameter of the liquid path oil pipe is not more than 4 mm.

Further, still include the power, the power is 24V storage battery.

Further, the oil pump and the brake fluid pot are both installed on the installation frame, and the installation frame is provided with a handle.

The beneficial effects of the utility model are embodied in:

the utility model discloses can alone operate, and need not start engine when wheel mechanical liquid way braking system exhausts, labour saving and time saving gets rid of this trouble. The maintenance exhaust standard is ensured, the rush repair efficiency is improved, the problems of overlong exhaust time and poor effect of a hydraulic path of an engineering machinery gas-liquid braking system are solved, and the safety during maintenance operation is improved.

The utility model discloses an integration, miniaturization, it is easy and simple to handle, liquid way oil pipe receive and releases fast, portable and quick operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to the present invention;

FIG. 2 is a schematic view of the mounting structure of the oil pump and the brake fluid pot of the fluid path exhaust device of the wheel-type mechanical gas-liquid braking system of the present invention;

fig. 3 is a schematic structural view of a liquid distributor of a liquid path exhaust device of a wheel-type mechanical gas-liquid braking system according to the present invention;

fig. 4 is a schematic structural view of a liquid-separating chamber of a wheel-type mechanical gas-liquid braking system liquid path exhaust device of the present invention;

fig. 5 is the structural schematic diagram of the liquid path oil pipe of the liquid path exhaust device of the wheel type mechanical gas-liquid braking system of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

When the wheel type mechanical gas-liquid braking system fails due to braking failure caused by frequent use or aging of a sealing element when a liquid path enters air in the working process, the problems of long exhaust time, manpower waste and unsafe vehicle operation are solved. The air-liquid braking system consists of an air path system and a liquid path system, and the liquid path system can cause braking failure after air enters, so that the performance can be recovered only by exhausting the air in the liquid path.

The liquid path system consists of a gas-liquid braking master cylinder, a pipeline, a braking wheel cylinder and a deflation screw. When a brake pedal is not stepped on, a piston is in an original position when a gas-liquid brake master cylinder does not work, a master cylinder liquid storage chamber is communicated with an oil way of an oil return valve, a brake caliper is communicated with the oil return valve, the oil return valve is in a closed state at the moment, the pressure of 0.07-0.1MPa is ensured in a brake pipeline, but a valve body of the oil return valve is pressed against the inner plane of a pump body by utilizing the elasticity of a return spring of the brake piston to seal, and when the pressure of the brake pipeline is more than 0.1MPa, the valve body of the oil return valve moves towards the direction of the brake piston to ensure that the whole liquid way of the master cylinder liquid storage chamber and. The brake fluid path system has the advantages that the structural characteristic of the fluid path of the gas-liquid brake system is utilized, brake fluid with the pressure greater than 0.1MPa is injected into the air discharging screw of the brake caliper, the whole brake fluid path can be communicated, air in the brake fluid path system is rapidly discharged to the fluid storage chamber of the brake master cylinder along with fluid flow, the air discharging function of the brake system is achieved, and the structure is the same in type.

By utilizing the characteristics of the braking system, when the braking system enters air during working to cause a braking failure fault, a new hydraulic power source can be utilized to inject pressure brake fluid with pressure more than 0.1MPa from a bleeding screw of the brake caliper, and the air is rapidly discharged from a vent hole of a gas-liquid braking master cylinder in a reverse direction, so that the braking performance is rapidly recovered.

Based on the above principle, as shown in fig. 1 to 5, the present embodiment provides a wheel type mechanical pneumatic and hydraulic brake system fluid path exhaust apparatus, including: the brake fluid pump comprises an oil pump 1, a brake fluid pot 2 and a liquid separator 3, wherein the brake fluid pot 2 is communicated with a liquid inlet of the oil pump 1, brake fluid is contained in the brake fluid pot 2, the oil pump 1 is communicated with the liquid separator 3 through a pipeline 4, and a pressure gauge 5 and a pressure reducing valve 6 are connected in series on the pipeline 4; the liquid separator 3 comprises a liquid separating cavity 7 and a plurality of liquid path oil pipes 8 connected with the liquid separating cavity 7, and the liquid separating cavity 7 is of a cavity structure and is connected with the pipeline 4. Liquid way oil pipe 8 and pipeline 4 all adopt the flexible tube, convenient storage. The pressure reducing valve 6 controls the flowing pressure of the brake fluid in the pipeline 4 by a user so that the flowing pressure of the brake fluid in the pipeline 4 is between 0.11MPa and 0.15MPa, and the pressure gauge 5 is used for displaying the flowing pressure of the liquid in the pipeline 4. Brake fluid in the brake fluid pot 2 is injected into a bleeder screw of the brake caliper by the oil pump 1 through the pipeline 4, the liquid separation cavity 7 and the fluid path oil pipe 8, so that the whole brake fluid path is communicated, and air in the brake fluid path system is quickly discharged to a liquid storage chamber of the brake master cylinder along with the fluid flow, so that the exhaust function of the brake system is realized.

Furthermore, the liquid path oil pipe 8 is detachably connected with the liquid separating cavity 7. Liquid way oil pipe 8 passes through quick-operation joint 9 plug with divide liquid chamber 7 to be connected, and quick-operation joint 9 is including the public head and the female head that match each other, and public head is installed on dividing liquid chamber 7, and female head is installed on liquid way oil pipe 8's both ends, and liquid way oil pipe 8 can be connected with the quick sealing of gassing screw through female head, realizes plug-and-play, sealed firm to accelerate the installation, dismantle speed. The quick coupling 9 is of the type DZKZE 026.

Further, divide liquid chamber 7 to be cylindric, be provided with the connecting pipe 12 of being connected with pipeline 4 on the lateral wall, quick-operation joint 9's joint is circumference array evenly distributed on dividing the upper and lower terminal surface of liquid chamber 7. Each side end face of the liquid distribution cavity 7 is provided with 8 male heads. Because each wheel has a brake caliper, there are four bleeder screws on each brake caliper, there are 16 on four brake calipers.

Further, the pressure-bearing range of the liquid path oil pipe 8 is 5MPa, and the diameter is not more than 4 mm.

Further, still include the power, the power is 24V storage batteries, and the power is the power supply of oil pump 1.

Further, in order to make the device compact in structure and convenient to carry, the oil pump 1 and the brake fluid pot 2 are both installed on the installation frame 10, and the installation frame 10 is provided with the handle 11.

To sum up, the utility model discloses can alone operate, and need not start the engine when wheel-to-wheel mechanical liquid way braking system exhausts, labour saving and time saving gets rid of this trouble. The maintenance exhaust standard is ensured, the rush repair efficiency is improved, the problems of overlong exhaust time and poor effect of a hydraulic path of an engineering machinery gas-liquid braking system are solved, and the safety during maintenance operation is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a wheeled machinery gas-liquid braking system liquid way exhaust apparatus which characterized in that includes: the brake fluid pump comprises an oil pump (1), a brake fluid pot (2) and a liquid distributor (3), wherein the brake fluid pot (2) is communicated with a fluid inlet of the oil pump (1), the oil pump (1) is communicated with the liquid distributor (3) through a pipeline (4), and a pressure gauge (5) and a pressure reducing valve (6) are connected in series on the pipeline (4);

the liquid distributor (3) comprises a liquid distribution cavity (7) and a plurality of liquid path oil pipes (8) connected with the liquid distribution cavity (7), wherein the liquid distribution cavity (7) is of a cavity structure and is connected with the pipeline (4).

2. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 1, characterized in that: the liquid path oil pipe (8) is detachably connected with the liquid distribution cavity (7).

3. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 2, characterized in that: the liquid path oil pipe (8) is connected with the liquid distribution cavity (7) through a quick connector (9) in a plugging mode, the quick connector (9) comprises a male head and a female head which are matched with each other, the male head is installed on the liquid distribution cavity (7), and the female head is installed at two ends of the liquid path oil pipe (8).

4. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 3, characterized in that: the model of the quick joint (9) is DZKZE 026.

5. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 3, characterized in that: divide liquid chamber (7) to be cylindric, be provided with on the lateral wall with connecting pipe (12) that pipeline (4) are connected, the joint of quick-operation joint (9) is circumference array evenly distributed divide on the upper and lower terminal surface of liquid chamber (7).

6. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 5, characterized in that: each side end face of the liquid distribution cavity (7) is provided with 8 male heads.

7. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 1, characterized in that: the pressure-bearing range of the liquid path oil pipe (8) is 5MPa, and the diameter is not more than 4 mm.

8. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 1, characterized in that: the power supply is a 24V storage battery.

9. The fluid path exhaust device of a wheel-type mechanical gas-liquid braking system according to claim 1, characterized in that: oil pump (1) and brake fluid kettle (2) are all installed on mounting bracket (10), be provided with handle (11) on mounting bracket (10).