阅读说明：本技术 制动控制系统、高空作业平台装置及防起步冲击的方法 (Brake control system, aerial work platform device and starting impact prevention method ) 是由 薛德森 孙永光 刘中周 于 2019-11-06 设计创作，主要内容包括：本申请涉及高空作业平台制动控制技术领域,尤其是涉及一种制动控制系统、高空作业平台装置及防起步冲击的方法,制动控制系统包括第一前桥减速机制动器、第二前桥减速机制动器、第一后桥减速机制动器、第二后桥减速机制动器和制动换向阀；其中,第一前桥减速机制动器与第二前桥减速机制动器并联连接于制动换向阀；第一后桥减速机制动器与第二后桥减速机制动器并联连接于制动换向阀。可见,前桥的左、右制动器解除制动,与此同时,后桥的左、右制动器也同步解除制动,保证了汽车起步时的平稳运行,避免了左右猛烈晃动。本申请提供的防起步冲击的方法中涉及防起步时的左右冲击以及防起步时的前后冲击,使得高空作业平台起步时更加平稳,避免晃动。(The application relates to the technical field of brake control of aerial work platforms, in particular to a brake control system, an aerial work platform device and a starting impact prevention method, wherein the brake control system comprises a first front axle speed reducer brake, a second front axle speed reducer brake, a first rear axle speed reducer brake, a second rear axle speed reducer brake and a brake reversing valve; the first front axle speed reducer brake and the second front axle speed reducer brake are connected in parallel to the brake reversing valve; the first rear axle speed reducer brake and the second rear axle speed reducer brake are connected in parallel to the brake reversing valve. Therefore, the left brake and the right brake of the front axle release the brake, and simultaneously, the left brake and the right brake of the rear axle also release the brake synchronously, thereby ensuring the stable operation of the automobile when starting and avoiding the violent leftward and rightward shaking. The starting impact preventing method relates to left and right impact prevention during starting and front and back impact prevention during starting, so that the aerial work platform is more stable during starting and avoids shaking.)

1. A brake control system, characterized by comprising: a first front axle speed reducer brake, a second front axle speed reducer brake, a first rear axle speed reducer brake, a second rear axle speed reducer brake and a brake reversing valve;

the first front axle speed reducer brake and the second front axle speed reducer brake are connected in parallel to the brake reversing valve; the first rear axle speed reducer brake and the second rear axle speed reducer brake are connected in parallel to the brake reversing valve.

2. The brake control system of claim 1, further comprising a drive device, a conveyance member, and a reservoir;

wherein the conveying member is connected to the driving device and the oil storage tank respectively; the oil storage tank is connected with an oil return port of the brake reversing valve.

3. The brake control system of claim 2, further comprising proportional relief valves connected to the output of the delivery member and the reservoir, respectively.

4. The brake control system of claim 2, wherein the delivery member is a pump.

5. A brake control system according to claim 2, wherein the drive means is an engine.

6. The brake control system of claim 1, wherein the first front axle reducer brake, the second front axle reducer brake, and the brake directional valve are connected by a first three-way joint.

7. The brake control system of claim 1, wherein the first rear axle reducer brake, the second rear axle reducer brake, and the brake directional valve are connected by a second three-way joint.

8. An aerial work platform arrangement comprising a brake control system as claimed in any one of claims 1 to 7.

9. A method of providing launch-preventing impact for a brake control system as claimed in any one of claims 1 to 7, or an aerial work platform arrangement as claimed in claim 8, comprising the steps of:

when starting, the first front axle speed reducer brake and the second front axle speed reducer brake are synchronously released from braking, and the first rear axle speed reducer brake and the second rear axle speed reducer brake are synchronously released from braking.

10. A method for preventing starting impact is used for a brake control system or an aerial work platform device comprising the brake control system, wherein the brake control system comprises a speed reducer brake, a brake reversing valve, an engine, a pump and an oil storage tank, and the speed reducer brake is connected to the brake reversing valve through a pipeline; the inlet end of the pump is connected to the oil storage tank, the first outlet end of the pump is connected to the engine, and the second outlet end of the pump is connected to the oil storage tank through a loop; the oil storage tank is connected with the brake reversing valve; the method is characterized by comprising the following steps:

disconnecting a pipeline connecting the brake reversing valve to the reducer brake;

starting an engine, wherein the pump extracts hydraulic oil from the oil storage tank, one part of the extracted hydraulic oil flows out through the first outlet end and flows into the pump, the engine keeps an idling state, the other part of the extracted hydraulic oil flows out through the second outlet end and flows back to the oil storage tank through the loop, and the hydraulic oil forms back pressure in the oil storage tank;

hydraulic oil in the oil storage tank enters the brake reversing valve, and the hydraulic oil enters a pipeline for connecting a brake of the speed reducer through the brake reversing valve until air in the pipeline is completely discharged;

and turning off the engine, and respectively reconnecting the pipelines to the speed reducer brakes.

Technical Field

The application relates to the technical field of aerial work platform brake control, in particular to a brake control system, an aerial work platform device and a starting impact prevention method.

Background

At present, the following problems exist in the brake control system of the current aerial work platform: the control oil port of the brake on the left side of the front axle and the brake control oil port on the left side of the rear axle are connected in parallel to the brake control oil port of the brake reversing valve through hydraulic oil pipes, the control oil port of the brake on the right side of the front axle and the brake control oil port on the right side of the rear axle are connected in parallel to the brake control oil port of the brake reversing valve through hydraulic oil pipes, when the aerial work platform starts to run, the brakes on the left side and the right side of the front axle and the rear axle are not synchronous in braking, and the impact is violent when the aerial work platform starts.

Disclosure of Invention

The application aims to provide a brake control system, an aerial work platform device and a starting impact prevention method, and solves the technical problem that the aerial work platform in the prior art is violently impacted when starting to a certain extent.

The present application provides a brake control system, comprising: a first front axle speed reducer brake, a second front axle speed reducer brake, a first rear axle speed reducer brake, a second rear axle speed reducer brake and a brake reversing valve;

the first front axle speed reducer brake and the second front axle speed reducer brake are connected in parallel to the brake reversing valve; the first rear axle speed reducer brake and the second rear axle speed reducer brake are connected in parallel to the brake reversing valve.

In the above technical solution, further, the brake control system further includes a driving device, a conveying member, and a reservoir tank;

wherein the conveying member is connected to the driving device and the oil storage tank respectively; the oil storage tank is connected with an oil return port of the brake reversing valve.

In any of the above technical solutions, further, the brake control system further includes a proportional relief valve, and the proportional relief valve is respectively connected to the output end of the conveying member and the oil storage tank.

In any of the above technical solutions, further, the conveying member is a pump.

In any of the above technical solutions, further, the driving device is an engine.

In any of the above technical solutions, further, the first front axle reducer brake, the second front axle reducer brake, and the brake directional valve are connected by a first three-way joint.

In any of the above technical solutions, further, the first rear axle reducer brake, the second rear axle reducer brake, and the brake directional valve are connected by a second three-way joint.

The application also provides an aerial work platform device, which comprises the brake control system in any technical scheme, so that all the beneficial technical effects of the brake control system are achieved, and the details are not repeated.

The application also provides a starting impact prevention method, which is used for the brake control system or the aerial work platform device and comprises the following steps:

when starting, the first front axle speed reducer brake and the second front axle speed reducer brake are synchronously released from braking, and the first rear axle speed reducer brake and the second rear axle speed reducer brake are synchronously released from braking.

The application also provides a starting impact prevention method, which is used for the aerial work platform device comprising the brake control system, wherein the brake control system comprises a speed reducer brake, a brake reversing valve, an engine, a pump and an oil storage tank, and the speed reducer brake is connected to the brake reversing valve through a pipeline; the inlet end of the pump is connected to the oil storage tank, the first outlet end of the pump is connected to the engine, and the second outlet end of the pump is connected to the oil storage tank through a loop; the oil storage tank is connected with the brake reversing valve;

the method for preventing starting impact comprises the following steps:

disconnecting a pipeline connecting the brake reversing valve to the reducer brake;

starting an engine, wherein the pump extracts hydraulic oil from the oil storage tank, one part of the extracted hydraulic oil flows out through the first outlet end and flows into the pump, the engine keeps an idling state, the other part of the extracted hydraulic oil flows out through the second outlet end and flows back to the oil storage tank through the loop, and the hydraulic oil forms back pressure in the oil storage tank;

hydraulic oil in the oil storage tank enters the brake reversing valve, and the hydraulic oil enters a pipeline for connecting a brake of the speed reducer through the brake reversing valve until air in the pipeline is completely discharged;

and turning off the engine, and respectively reconnecting the pipelines to the speed reducer brakes.

Compared with the prior art, the beneficial effect of this application is:

the application provides a braking control system, first front axle speed reducer stopper and second front axle speed reducer stopper parallel connection are in braking switching-over valve to the left and right stopper of two front axles is in step relieved braking when having realized the starting, has avoided in the past because the left and right stopper of front axle is relieved and is braked about the violent rocking that produces when asynchronous. Similarly, the first rear axle speed reducer brake and the second rear axle speed reducer brake are connected in parallel to the brake reversing valve, so that the left brake and the right brake of the two rear axles are synchronously released when starting, and the left and right violent shaking caused by the asynchronous release of the left brake and the right brake of the rear axles is avoided. Therefore, the structure ensures the stable running of the automobile when starting, and avoids the violent left-right shaking.

The application provides an aerial working platform device, includes above-mentioned brake control system, therefore, through this brake control system, steady operation when having guaranteed the car start has avoided controlling violently to rock.

The starting impact preventing method is particularly a left-right impact preventing method, the left brake and the right brake of the front axle are released, meanwhile, the left brake and the right brake of the two rear axles are also released synchronously, stable running of an automobile is guaranteed when the automobile starts, and the automobile is prevented from shaking violently left and right.

The starting impact preventing method is particularly a front-back impact preventing method, air in a pipeline in a brake control system is discharged, starting stability of the traveling device of the aerial work platform is guaranteed, and the problem of front-back shaking existing in the conventional starting process is solved.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a brake control system provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a brake control system according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a method for preventing starting shock according to an embodiment of the present application.

Reference numerals:

1-a first front axle reducer brake, 2-a second front axle reducer brake, 3-a first rear axle reducer brake, 4-a second rear axle reducer brake, 5-a brake reversing valve, 6-a drive device, 7-a conveying member, 8-an oil tank, 9-a proportional overflow valve, 10-a first three-way joint, 11-a second three-way joint, 121-a first pipeline, 122-a second pipeline, 123-a third pipeline, 124-a fourth pipeline, 125-a fifth pipeline, 126-a sixth pipeline, 127-a seventh pipeline, 128-an eighth pipeline, 129-a ninth pipeline, 130-a tenth pipeline, 131-an eleventh pipeline.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A brake control system, aerial work platform arrangement and method of preventing breakaway impact according to some embodiments of the present application are described below with reference to fig. 1-3.