A closed-loop braking system for coal mine crawler equipment
A brake system and closed-loop technology, applied in the direction of brakes, brake transmissions, transportation and packaging, etc., can solve the problems of low service life, large braking impact of brakes, etc., and achieve the goal of reducing braking impact and eliminating potential safety hazards Effect
Active Publication Date: 2019-05-14
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The present invention provides a closed-loop braking system for coal mine crawler equipment in order to solve the problems of large braking impact and low service life of the existing mine crawler equipment brakes.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] Such as figure 1 As shown, a coal mine crawler equipment closed-loop braking system, including a pressure reducing valve 2, a brake valve 3, a PLC controller 4, a pedal brake switch 5, a frequency converter 6, a brake 9, a pressure sensor 10, and a forced unlocking module 12 and current transformer 13, the brake valve 3, pedal brake switch 5, frequency converter 6 and pressure sensor 10 are respectively connected to the PLC controller 4; the brake valve 3P port is connected to the oil source through the pressure reducing valve , Port B is connected to the brake 9 through the stop valve 11, port T is connected to the fuel tank; the brake 9 is connected to the forced unlocking module 12, the pressure sensor 10 and the reducer 8 respectively, the frequency converter 6 is connected to the motor 7, and the motor 7 is connected to the reducer 8 Connection, the pressure sensor 10 is respectively connected with the brake 9 and the PLC controller 4, and the current transformer 1...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of braking of crawler equipment for a coal mine, and particularly relates to a closed loop brake system of the crawler equipment for the coal mine. The system solves the problems of large brake impact, short service life and the like of the existing brake of the crawler equipment for the coal mine. The closed loop brake system of the crawler equipment for the coal mine comprises a pressure reducing valve, a brake valve, a PLC (Programmable Logic Controller), a pedal brake switch, a frequency converter, a brake, a pressure sensor, a forced unlocking module and a current transformer, wherein the brake valve, the pedal brake switch, the frequency converter and the pressure sensor are respectively connected with the PLC; a P port of the brake valve is connected with an oil source through the pressure reducing valve, a B port of the brake valve is connected with the brake through a cut-off valve, and a T port of the brake valve is connected with an oil tank; the brake is respectively connected with the forced unlocking module, the pressure sensor and a speed reducer; the frequency converter is connected with a motor; the motor is connected with the speed reducer; the pressure sensor is respectively connected with the brake and the PLC; and the current transformer is respectively connected with the motor and the PLC to form a brake system controlled closed loop.
Description
technical field [0001] The invention belongs to the technical field of braking of crawler equipment used in coal mines, and in particular relates to a closed-loop braking system of crawler equipment in coal mines. Background technique [0002] At present, in order to meet the requirements of mobility and energy saving, the crawler equipment used in coal mines widely adopts the chassis driven by variable frequency motors. In order to ensure its operation safety and efficiency, a braking system is often installed. Commonly used is hydraulically controlled friction braking. This type of brake has the characteristics of reliable braking, flexible operation, small size, light weight, and good heat dissipation. The existing problems are: 1) Large braking impact, easy to damage walking motor and travel reducer. [0003] 2) There is no logic lock between the braking system and the travel motor, which reduces the service life of the brake, travel motor and travel reducer. [0004]...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/66
CPCB60T13/662
Inventor 杨敬伟王佃武李发泉宋明江慕伟郑吉郭治富兰辉敏郭晋彬张小峰徐双用任晓力朱大鹏马凯闫金宝
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP