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Wheel type explosion-proof hydraulic brake

A technology of hydraulic brakes and wheel brakes, which is applied in the direction of drum brakes, brake types, brake actuators, etc., and can solve the problems of complex hydraulic systems, inapplicability, and high requirements for electronic control

Inactive Publication Date: 2006-06-21
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, in the process of parking braking, the brake must be required to operate with stepless speed regulation. Of course, the corresponding braking torque is also steplessly adjustable. The existing stepless braking device obviously does not match this working condition.
At the same time, from the structure and control point of view of the stepped braking device, the entire hydraulic system is too complicated, and the requirements for electronic control are high. Very inapplicable on conveyors

Method used

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  • Wheel type explosion-proof hydraulic brake
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  • Wheel type explosion-proof hydraulic brake

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Embodiment Construction

[0011] Explosion-proof electromagnetic ball valve 8 adopts two-position two-way electromagnetic ball valve, and the programmable controller adopts PLC of Siemens S7-200 series whose basic unit is CPU224.

[0012] Connect the 660V power supply, the explosion-proof electromagnetic ball valve 8, the power line and the signal line of the proportional pressure valve 9 to the electric control cabinet, and preload and deform the brake spring 16 according to the rated braking torque. The braking force at this time is the rated braking force. When the single-acting oil cylinder 6 was working, the piston rod 21 made the right end of the brake frame final lever triangular plate 17 subject to an upward thrust, which was transmitted to the left and right brake arms 14,18 through the pull rod 15. The force acting from the oil pressure of the single-acting oil cylinder 6 to the left and right brake arms 14 and 18 is the brake release force, and its direction is opposite to the direction of th...

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Abstract

This invention relates to one wheel anti-explosion hydraulic brake, which comprises wheel brake rack and Pump hydraulic system and control device, wherein, the pump cylinder hydraulic system comprises hydraulic pump, single oil cylinder, overflow valve, anti-explosion magnetic valve, single valve, pressure meter switch, proportion flow save valve, proportion pressure valve, anti-explosion motor, filter, cylinder oil case with air filter and system oil case; the control device comprises transducer, breaker, alternating touch device, heat relay, leakage protector, direct drive power, programmable controller, local isolation grating and point button and non-touch near switch.

Description

technical field [0001] The invention relates to a hydraulically driven mechanical brake device. Background technique [0002] At present, the brakes used in various machinery are mainly normally closed. For example, the Chinese patent "wheeled explosion-proof hydraulic mechanical brake" with application number CN02135847.8 lacks an effective control braking function, and the braking torque it produces only depends on the preload of the compressed brake spring when the brake is released. To a certain extent, there is only one constant braking torque, which obviously cannot adapt to the actual needs of the machine's frequently changing load and peripherals. Although there are methods to achieve step-by-step braking, such as the patent No. CN92231346.6 normally closed multi-stage brake, for inclined belt conveyors, especially for inclined belt conveyors in coal mines, several kilometers of adhesive tapes are a kind of Elastomer, and it is arranged obliquely, sometimes in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/22F16D49/16
Inventor 寇子明卫进李军霞徐伟毛昌明
Owner TAIYUAN UNIV OF TECH
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