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Parking brake control device of electric fork-lift truck and control method thereof

A technology for parking brakes and electric forklifts, which is applied in the direction of automatic starting devices, braking transmission devices, brakes, etc., can solve the problems of inability to start electric brakes, potential safety hazards, and inability to trigger micro switches, so as to reduce potential safety hazards, Reduce the failure rate and control the effect of intelligence

Active Publication Date: 2017-09-26
ANHUI HELI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, due to assembly errors or other reasons, the baffle plate on the handle body cannot trigger the micro switch after the handle is pulled, or the micro switch is crushed due to too small empty travel, so that the controller cannot receive The brake signal cannot start the electric brake. This scheme of relying on a single micro switch to trigger the brake signal to control the electric brake has certain potential safety hazards.

Method used

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  • Parking brake control device of electric fork-lift truck and control method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] Such as figure 1 As shown, the parking brake control device of the electric forklift of the present embodiment includes a display instrument 8, a traction motor controller 6 connected with the traction motor 10, an oil pump motor controller 7 connected with the oil pump motor 11, and a traction motor controller 7 connected with the traction motor. The display instrument 8 and the low-voltage alarm buzzer 20 connected to the device 6, the oil pump motor controller 7, the traction motor controller 6, the oil pump motor controller 7 are connected between the negative pole of the battery 1 and the key switch 3, the traction motor control The accelerator 14, the direction switch 15 and the seat switch 16 are connected on the device 6, the solenoid valve coil 17 and the pressure switch 18 are connected on the oil pump motor controller 7, and the positive terminals of the t...

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Abstract

The invention relates to a parking brake control device of an electric fork-lift truck and a control method thereof. The parking brake control device comprises a traction motor controller connected with a traction motor and an oil pump motor controller connected with an oil pump motor, wherein both the traction motor controller and the oil pump motor controller are connected between a negative pole of a storage battery and a key switch, an accelerator, a direction switch and a seat switch are connected to the traction motor controller, a solenoid valve coil and a pressure switch are connected to the oil pump motor controller, the positive pole wiring terminals of the traction motor controller and the oil pump motor controller are in serial connection with contacts of a contactor, and the coil end of the contactor is connected at the control end of the traction motor controller. The parking brake control device achieves automatic work of a parking brake control system, a driver does not need to trigger a microswitch to actively give controller signals, control is more intelligent, the operation is more convenient, the fault rate of the control system is reduced, and potential safety hazards are effectively decreased.

Description

technical field [0001] The invention relates to the technical field of forklift control, in particular to a parking brake control device and a control method for an electric forklift. Background technique [0002] At present, domestic forklifts generally use the hand brake handle to cooperate with the brake to realize the function of parking brake. This method needs to set a normally closed brake micro switch and fix it on the brake handle mounting bracket. After the forklift stops, pull the brake handle and rotate the handle body around the pin shaft. The baffle fixed on the handle body then triggers the micro switch. After the micro switch is disconnected, the brake signal is sent to the controller to control The controller issues an instruction to stop the driving motor, so as to realize the parking brake control of the electric forklift. During use, due to assembly errors or other reasons, the baffle plate on the handle body cannot trigger the micro switch after the ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68B60T17/22B60T7/12
CPCB60T13/686B60T17/22B60T7/12Y02T10/72
Inventor 栾英邵凌凌葛立银吴天福姚钢
Owner ANHUI HELI CO LTD
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