阅读说明：本技术 一种应用于10kV带电作业平台的液压控制系统 (Hydraulic control system applied to 10kV live working platform ) 是由 许福忠 杨华锋 黄原辉 姚瑞晋 苏东兴 陈辉阳 吴玉婷 陈蕊琼 李茂芳 吴伟鹏 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种应用于10kV带电作业平台的液压控制系统,涉及电力技术领域,包括：指令及放大器件：控制信号的产生、输入及放大,电—机械转换器：将控制信号转换或位移为等机械量控制信号。该应用于10kV带电作业平台的液压控制系统,通过液压动力源的使用,可以使设备同时拥有两种不同的动力输出方式,进一步改善系统的静、动态特性,使设备的移动满足适应农田、崎岖山路、狭小通道等复杂地形环境,保证了设备的复杂环境工作能力,有效支撑配网野外作业需求,通过内环检测反馈器件与外环检测反馈器件的结合使用,使整个系统的性能和控制精度都相对提高,保证工作人员在强电场环境下的高空作业绝缘安全。(The invention discloses a hydraulic control system applied to a 10kV live working platform, which relates to the technical field of electric power and comprises the following components: the instruction and amplification device: generation, input and amplification of control signals, electro-mechanical converter: the control signal is converted or shifted into an equal mechanical quantity control signal. This be applied to hydraulic control system of 10kV live working platform, use through hydraulic power source, can make equipment possess the power take off mode of two kinds of differences simultaneously, further improve quiet of system, dynamic characteristics, make the removal of equipment satisfy complex terrain environments such as adaptation farmland, rugged mountain roads, narrow and small passageway, the complex environment operational capability of equipment has been guaranteed, effectively support and join in marriage net field work demand, detect the combined use of feedback device and outer loop through the inner ring, make entire system's performance and control accuracy all improve relatively, guarantee the insulating safety of high altitude construction of staff under strong electric field environment.)

1. The utility model provides a be applied to 10kV live working platform's hydraulic control system which characterized in that includes:

command and amplification device (1): generating, inputting and amplifying a control signal;

electro-mechanical converter (2): converting or displacing the control signal into an equal mechanical quantity control signal;

hydraulic power source (3): providing a constant pressure oil source or a constant flow oil source for the apparatus;

hydraulic switching and amplifying device (4): converting the received signal and simultaneously carrying out power amplification;

hydraulic actuator (5): the output device of the system executes the obtained signals;

control object (6): receiving the sent signal and making a corresponding action to complete the instruction;

inner loop detection feedback device (7): detecting the actual value of the controlled quantity or the intermediate variable to obtain a feedback signal of the system;

outer loop detection feedback device (8): and detecting the output quantity, and improving the performance and control precision of the whole system.

The hydraulic power source (3) comprises a positive displacement hydraulic pump module, an overflow valve module, an energy accumulator module and a safety valve module, wherein the overflow valve module, the energy accumulator module and the safety valve module are in bidirectional signal connection with the positive displacement hydraulic pump module, and the inner ring detection feedback device (7) is in bidirectional signal connection with the outer ring detection feedback device (8).

2. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the hydraulic execution device (5) comprises a signal transition module, a load detection module and a power output module, wherein the load detection module and the power output module are in bidirectional signal connection with the signal transition module.

3. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the instruction and amplification device (1) comprises a signal generation input module, an electronic amplification correction module and an electro-hydraulic proportional control module, wherein the electronic amplification correction module and the electro-hydraulic proportional control module are in bidirectional signal connection with the signal generation input module.

4. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the output end of a signal generation input module in the instruction and amplification device (1) is in signal connection with the input end of the electro-mechanical converter (2), and the output end of the electro-mechanical converter (2) is electrically fed back to a feedback element between the instruction and amplification device (1) and the electro-mechanical converter (2).

5. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the output end of the electro-mechanical converter (2) is in signal connection with the input end of the hydraulic conversion and amplification device (4), and the output end of the positive displacement hydraulic pump module in the hydraulic power source (3) is in signal connection with the input end of the hydraulic conversion and amplification device (4).

6. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the output end of the hydraulic conversion and amplification device (4) is in signal connection with the input end of a signal transition module in the hydraulic execution device (5), and the output end of the signal transition module in the hydraulic execution device (5) is in signal connection with the input end of a control object (6).

7. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: and mechanical hydraulic feedback is generated between the hydraulic conversion and amplification device (4) and the inner ring detection feedback device (7).

8. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the output end of the hydraulic conversion and amplification device (4) is in signal connection with the input end of the inner ring detection feedback device (7), and the output end of the inner ring detection feedback device (7) is in signal connection with a feedback element between the electro-mechanical converter (2) and the hydraulic conversion and amplification device (4).

9. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the output end of the hydraulic conversion and amplification device (4) is in signal connection with the input end of the outer ring detection feedback device (8), and the output end of a signal transition module in the hydraulic execution device (5) is in signal connection with the input end of the outer ring detection feedback device (8).

10. The hydraulic control system applied to a 10kV live working platform according to claim 1, characterized in that: the output end of the control object (6) is in signal connection with the input end of an outer ring detection feedback device (8), and the output end of the outer ring detection feedback device (8) is in telecommunication connection with a feedback element between the instruction and amplification device (1) and the electro-mechanical converter (2).

Technical Field

The invention relates to the technical field of electric power, in particular to a hydraulic control system applied to a 10kV live working platform.

Background

With the further development of society, the requirement of people on the power supply quality is higher and higher, and in the work and the life of people, electric power plays an important role, once electric power stops working, the serious problem is brought to the life and the production of people, live working is proposed aiming at the problem, the live working can effectively reduce the power failure time, the live working can become a normal working mode to gradually replace the power failure work, and meanwhile, the live working of a distribution network belongs to high altitude, high risk and high intensity work.

Insulating bearing tool commonly used at present mainly has insulating arm car, insulating arm car itself has the security height, the operating efficiency is high, many characteristics of operation project, but insulating arm car is wheeled chassis structure usually, and is bulky, and 10kV distribution lines are located remote mountain area, current insulating arm car can't adapt to the terrain differently, rugged road surface of height unevenness, design and development can carry the convenient high altitude live working platform who adapts to complicated road conditions and narrow and small space and easy and simple to handle, the operation personnel can pass through the automatic operation of platform, accomplish and go up and down, function such as flexible, realize high altitude live working safely.

Disclosure of Invention

The invention aims to provide a hydraulic control system applied to a 10kV live working platform, and solves the problems in the background art.

In order to achieve the purpose, the invention is realized by the following technical scheme: a hydraulic control system applied to a 10kV live working platform comprises:

the instruction and amplification device: generating, inputting and amplifying a control signal;

electro-mechanical converter: converting or displacing the control signal into an equal mechanical quantity control signal;

a hydraulic power source: providing a constant pressure oil source or a constant flow oil source for the apparatus;

hydraulic pressure conversion and amplifier device: converting the received signal and simultaneously carrying out power amplification;

a hydraulic actuator: the output device of the system executes the obtained signals;

the control object is: receiving the sent signal and making a corresponding action to complete the instruction;

inner ring detection feedback device: detecting the actual value of the controlled quantity or the intermediate variable to obtain a feedback signal of the system;

outer loop detection feedback device: and detecting the output quantity, and improving the performance and control precision of the whole system.

The hydraulic power source comprises a positive displacement hydraulic pump module, an overflow valve module, an energy accumulator module and a safety valve module, wherein the overflow valve module, the energy accumulator module and the safety valve module are in bidirectional signal connection with the positive displacement hydraulic pump module, and the inner ring detection feedback device and the outer ring detection feedback device are in bidirectional signal connection.

Furthermore, the hydraulic execution device comprises a signal transition module, a load detection module and a power output module, wherein the load detection module and the power output module are in bidirectional signal connection with the signal transition module.

Furthermore, the instruction and amplification device comprises a signal generation input module, an electronic amplification correction module and an electro-hydraulic proportional control module, wherein the electronic amplification correction module and the electro-hydraulic proportional control module are in bidirectional signal connection with the signal generation input module.

Furthermore, the output end of the signal generation input module in the instruction and amplification device is in signal connection with the input end of the electro-mechanical converter, and the output end of the electro-mechanical converter is electrically fed back to a feedback element between the instruction and amplification device and the electro-mechanical converter.

Furthermore, the output end of the electro-mechanical converter is in signal connection with the input end of the hydraulic conversion and amplification device, and the output end of the positive displacement hydraulic pump module in the hydraulic power source is in signal connection with the input end of the hydraulic conversion and amplification device.

Furthermore, the output end of the hydraulic conversion and amplification device is in signal connection with the input end of a signal transition module in the hydraulic execution device, and the output end of the signal transition module in the hydraulic execution device is in signal connection with the input end of a control object.

Furthermore, mechanical hydraulic feedback is generated between the hydraulic conversion and amplification device and the inner ring detection feedback device.

Furthermore, the output end of the hydraulic conversion and amplification device is in signal connection with the input end of the inner ring detection feedback device, and the output end of the inner ring detection feedback device is in signal connection with a feedback element between the electro-mechanical converter and the hydraulic conversion and amplification device.

Furthermore, the output end of the hydraulic conversion and amplification device is in signal connection with the input end of the outer ring detection feedback device, and the output end of the signal transition module in the hydraulic execution device is in signal connection with the input end of the outer ring detection feedback device.

Furthermore, the output end of the control object is in signal connection with the input end of an outer ring detection feedback device, and the output end of the outer ring detection feedback device is in telecommunication connection with a feedback element between the instruction and amplification device and the electro-mechanical converter.

The invention provides a hydraulic control system applied to a 10kV live working platform. The method has the following beneficial effects:

(1) this be applied to hydraulic control system of 10kV live working platform through hydraulic power source's use, can make equipment possess two kinds of different power take off modes simultaneously, further improves quiet, the dynamic characteristic of system, makes the removal of equipment satisfy complicated terrain environment such as adaptation farmland, rugged mountain roads, narrow and small passageway, has guaranteed the complex environment operational capability of equipment, effectively supports and joins in marriage net field work demand.

(2) The hydraulic control system applied to the 10kV live working platform has the advantages that the performance and the control precision of the whole system are relatively improved through the combined use of the inner ring detection feedback device and the outer ring detection feedback device, and the insulation safety of workers in high-altitude operation in a strong electric field environment is ensured.

(3) According to the hydraulic control system applied to the 10kV live working platform, the target function of the stability coefficient of the aerial working platform is obtained by establishing a platform automatic balance model based on a moment method, and the self-leveling problem of the self-propelled traveling system in the traveling process under the complex pavement environment is solved by adopting an inclination angle high-speed acquisition technology and a pre-compensation technology.

Drawings

FIG. 1 is a general system diagram of a hydraulic control system applied to a 10kV live working platform according to the present invention;

FIG. 2 is a schematic diagram of a hydraulic power source of a hydraulic control system for a 10kV live working platform according to the present invention;

FIG. 3 is a schematic diagram of a hydraulic actuator of the hydraulic control system applied to a 10kV live working platform according to the present invention;

fig. 4 is a schematic diagram of a command and amplification device of a hydraulic control system applied to a 10kV live working platform according to the present invention.

In the figure: 1. a command and amplification device; 2. an electro-mechanical converter; 3. a hydraulic power source; 4. a hydraulic switching and amplifying device; 5. a hydraulic actuator; 6. a control object; 7. an inner loop detection feedback device; 8. and an outer loop detection feedback device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The invention will be further illustrated with reference to the following examples and drawings:

referring to fig. 1-4, the present invention provides a technical solution: a hydraulic control system applied to a 10kV live working platform comprises:

the instruction and amplification device 1: generating, inputting and amplifying a control signal;

electro-mechanical converter 2: converting or displacing the control signal into an equal mechanical quantity control signal;

hydraulic power source 3: providing a constant pressure oil source or a constant flow oil source for the apparatus;

hydraulic pressure conversion and amplification device 4: converting the received signal and simultaneously carrying out power amplification;

the hydraulic actuator 5: the output device of the system executes the obtained signals;

the control object 6: receiving the sent signal and making a corresponding action to complete the instruction;

inner loop detection feedback device 7: detecting the actual value of the controlled quantity or the intermediate variable to obtain a feedback signal of the system;

outer loop detection feedback device 8: and detecting the output quantity, and improving the performance and control precision of the whole system.

The hydraulic power source 3 comprises a positive displacement hydraulic pump module, an overflow valve module, an energy accumulator module and a safety valve module, wherein the overflow valve module, the energy accumulator module and the safety valve module are in bidirectional signal connection with the positive displacement hydraulic pump module, the inner ring detection feedback device 7 is in bidirectional signal connection with the outer ring detection feedback device 8, the power for improving the hydraulic power source 3 can be divided into two types, one type is a constant-pressure oil source consisting of the positive displacement hydraulic pump module, the overflow valve module and the energy accumulator module, the other type is a constant-flow oil source consisting of the positive displacement hydraulic pump module and the safety valve module, in an electro-hydraulic proportional control system, a hydraulic element (a proportional valve), an execution device and a control object 6 are closely related, and for the convenience of system modeling and dynamic analysis, the three types are combined into a hydraulic device which becomes a hydraulic power mechanism to further improve the static state, the energy accumulator module and the safety valve module of the system, The dynamic characteristic is that various correction devices are often added in the system, the detection element has a displacement sensor, a tachogenerator and the like, and the detection element is often a signal converter to meet the comparison requirement.

Specifically, the hydraulic actuator 5 includes a signal transition module, a load detection module and a power output module, the load detection module and the power output module are connected with the signal transition module by two-way signals, usually a hydraulic cylinder or a hydraulic motor, and output parameters of the hydraulic cylinder or the hydraulic motor are displacement, speed, acceleration, force or rotation angle, angular velocity, angular acceleration and torque, wherein the signal transition module deletes and executes received signals, the load detection module detects the load condition of a controlled position to ensure safety, and the power output module directly outputs power to perform activity control.

Specifically, the instruction and amplification device 1 comprises a signal generation input module, an electronic amplification correction module and an electro-hydraulic proportional control module, wherein the electronic amplification correction module, the electro-hydraulic proportional control module and the signal generation input module are in bidirectional signal connection, the instruction and amplification device 1 can also be called a programmer or an input circuit, under the condition that a feedback signal exists, the instruction and amplification device gives a control signal which has the same form and magnitude as the feedback signal, can also be a signal generation device or a program controller, the instruction signal can be manually set or programmed, most commonly, manually preset, and is gated by a program during operation, the signal generation input module generates and sends a signal, the electronic amplification correction module carries out amplification adjustment to ensure that the signal is normal, and the electro-hydraulic proportional control module comprises a proportional valve, an electro-hydraulic proportional variable pump and a variable motor which comprise a mechanical converter, and carrying out corresponding proportional control.

Specifically, the output end of a signal generation input module in the instruction and amplification device 1 is in signal connection with the input end of the electro-mechanical converter 2, the output end of the electro-mechanical converter 2 is electrically fed back to a feedback element between the instruction and amplification device 1 and the electro-mechanical converter 2, the electro-mechanical converter 2 is an electro-hydraulic interface element, generally a moving-iron type electromagnetic device, and converts a control signal into mechanical quantity control signals such as (moment) or (displacement) (turning angle), for example, a proportional electromagnet and the like, the instruction signal generated by the instruction and amplification device 1 is transmitted to the electro-mechanical converter 2 to be converted between different signal types, so that a corresponding identifiable signal is formed, meanwhile, feedback is generated, and the feedback quantity is also converted into the same type of electric quantity.

Specifically, the output end of the electro-mechanical converter 2 is in signal connection with the input end of the hydraulic conversion and amplification device 4, the output end of the displacement hydraulic pump module in the hydraulic power source 3 is in signal connection with the input end of the hydraulic conversion and amplification device 4, the electro-mechanical converter 2 transmits the converted signal to the hydraulic conversion and amplification device 4 for signal amplification, the hydraulic conversion and amplification device 4 can be various switch type, servo type and proportional type devices, and is actually a power amplification unit, and the hydraulic power source 3 provides corresponding power output for the hydraulic conversion and amplification device 4.

Specifically, the output end of the hydraulic conversion and amplification device 4 is in signal connection with the input end of a signal transition module in the hydraulic execution device 5, the output end of the signal transition module in the hydraulic execution device 5 is in signal connection with the input end of the control object 6, the signal amplified by the hydraulic conversion and amplification device 4 is transmitted to the hydraulic execution device 5 for signal execution, and the hydraulic execution device 5 controls the control object 6 to make a corresponding activity effect according to the received signal.

Specifically, mechanical hydraulic feedback is generated between the hydraulic conversion and amplification device 4 and the inner ring detection feedback device 7, a deviation signal is obtained by comparing the input signal and the feedback signal between the hydraulic conversion and amplification device 4 and the inner ring detection feedback device 7, and mechanical hydraulic feedback is generated according to the deviation signal.

Specifically, the output end of the hydraulic pressure conversion and amplification device 4 is in signal connection with the input end of the inner ring detection feedback device 7, the output end of the inner ring detection feedback device 7 is in signal connection with a feedback element between the electro-mechanical converter 2 and the hydraulic pressure conversion and amplification device 4, and the inner ring detection feedback device 7 detects, compares and feeds back the output signal of the hydraulic pressure conversion and amplification device 4.

Specifically, the output end of the hydraulic conversion and amplification device 4 is in signal connection with the input end of the outer ring detection feedback device 8, the output end of the signal transition module in the hydraulic execution device 5 is in signal connection with the input end of the outer ring detection feedback device 8, and the hydraulic conversion and amplification device 4 and the hydraulic execution device 5 are both connected to the outer ring detection feedback device 8 for further detection, so that data are more accurate.

Specifically, the output end of the control object 6 is in signal connection with the input end of the outer ring detection feedback device 8, the output end of the outer ring detection feedback device 8 is in telecommunication connection with a feedback element between the instruction and amplification device 1 and the electro-mechanical converter 2, the control object 6 is connected to the outer ring detection feedback device 8, the performance is higher than the temperature, and meanwhile, the signal of the outer ring detection feedback device 8 is fed back.

When in use, the signal generation input module in the instruction and amplifier device generates a signal source, the signal source is amplified, corrected and transmitted to the electro-mechanical converter 2 through the electronic amplification correction module, the electro-mechanical converter 2 converts the received signal to enable the signal to be correspondingly received, meanwhile, the hydraulic power source 3 provides corresponding power output for the hydraulic conversion and amplification device 4, the hydraulic conversion and amplification device 4 transmits the converted and amplified signal to the hydraulic execution device 5, the hydraulic execution device 5 realizes the power output according to the load so as to control the control object 6, in the process of signal transmission and control, the inner ring detection feedback device 7 compares the received signal to enable the temperature of the signal to be accurate and simultaneously feed back the information, in the process of detection of the inner ring detection feedback device 7, the data simultaneously passes through the outer ring detection feedback device 8, the performance and the control precision of the whole system are relatively improved, and the safety of personnel is ensured.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.