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Automatic braking and parking unlocking system and method suitable for forklift

A technology of automatic braking and control method, applied in the direction of brakes, brake transmission devices, vehicle components, etc., can solve the problems of inability to meet the safety of forklift parking, the wheels cannot be completely locked, accidents, etc., to prevent slippage. , The operation is simple and labor-saving, and the effect of reducing labor intensity

Inactive Publication Date: 2018-06-01
ANHUI HELI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the electric forklift is powered on and the speed is 0, the driving motor has a certain electric braking capability, but when parking on a slope, the wheels cannot be completely locked. When the driver forgets to pull the handbrake and leaves the seat after parking, it is easy to slide down the slope. and an accident
The existing forklift parking brake device cannot satisfy the safety of forklift parking, so it is necessary to design a parking system that can realize automatic parking brake and release

Method used

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  • Automatic braking and parking unlocking system and method suitable for forklift
  • Automatic braking and parking unlocking system and method suitable for forklift
  • Automatic braking and parking unlocking system and method suitable for forklift

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, an automatic braking and unlocking parking system suitable for a forklift is connected with the hydraulic system of the forklift. The hydraulic system includes: a hydraulic oil tank 17 connected in sequence, a gear pump 16, an accumulator low-pressure switch 15, and an accumulator 14. Accumulator high pressure switch 13 and parking brake solenoid valve 12; the left parking brake 9 and right parking brake 10 of the forklift respectively communicate with the parking brake solenoid valve 12 through hydraulic oil pipes; the gear pump 16 and the motor 18 ON; automatic braking and unlocking of the parking system includes:

[0033] Controller 2: Used to receive various signals, perform calculation processing and send instructions. In a specific application, the controller 2 may be an AC pump controller.

[0034] Acceleration pedal switch 5: electrically connected to the controller 2, used to send an accelerator pedal signal to the controller 2.

...

Embodiment 2

[0056] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the automatic braking and unlocking parking system also includes:

[0057] Parking indicator light 4: electrically connected to the controller 2, used to display corresponding colors according to the parking status instruction sent by the controller 2.

[0058] The parking indicator light 4 is specifically an indicator light that can display red, green and yellow.

[0059] This embodiment sets the parking indicator light 4 to facilitate the driver to know the parking state of the current forklift. Indicate the current parking status of the forklift through LCD screen, LED digital screen or voice broadcast.

[0060] The working flow chart of the parking indicator light 4 is as follows: Figure 5 As shown, the controller 2 controls the parking indicator light 4 to display lights of corresponding colors according to the current parking state of the forklift, specifically:

[006...

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Abstract

The invention provides an automatic braking and parking unlocking system and method suitable for a forklift. The automatic braking and parking unlocking system comprises a controller for receiving various signals, conducting computing treatment and sending an instruction, an accelerator pedal switch electrically connected with the controller and used for sending an accelerator pedal signal to thecontroller, an advancing / retreating gear switch electrically connected with the controller and used for sending an advancing / retreating gear signal to the controller, a speed sensor electrically connected with the controller and used for colleting vehicle driving speed data and sending the data to the controller, and a pressure switch communicated with a parking and braking electromagnetic valve,electrically connected with the controller and used for detecting whether the pressure of an energy accumulator is normal or not and sending a pressure switch signal to the controller. The automatic braking and parking unlocking system has the advantages that automatic parking can be realized, slope sliding is effectively prevented, parking is automatically unlocked when the forklift is started, parking and braking do not need to be frequently carried out, and labor intensity is relieved.

Description

technical field [0001] The invention relates to the technical field of forklift braking, in particular to an automatic braking and unlocking parking system and method suitable for forklifts. Background technique [0002] At present, the parking brake device on most electric forklifts is still realized by hand brake, and the brake control force is large. Although the electric forklift is powered on and the speed is 0, the driving motor has a certain electric braking capability, but when parking on a slope, the wheels cannot be completely locked. When the driver forgets to pull the handbrake and leaves the seat after parking, it is easy to slide down the slope. And an accident happened. The existing forklift parking brake device cannot satisfy the safety of forklift parking, so it is necessary to design a parking system that can realize automatic parking brake and release. Contents of the invention [0003] In order to solve the above-mentioned technical defects in the pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68
CPCB60T13/686
Inventor 田原陈伟林张杰江博陈仕胜
Owner ANHUI HELI CO LTD
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