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Accelerator and walking control combination valve assembly

A technology of walking control and throttle control, which is applied to the layout of power plant control mechanisms, multi-way valves, valve devices, etc., and can solve problems such as inconvenience for drivers and operators, one-step improvement, and inconvenient operation

Active Publication Date: 2017-01-11
QUANZHOU KINHO CONSTR MACHINERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current engineering vehicles such as wheeled excavators, in the driving state such as driving, parking, acceleration, deceleration, etc., the driver and the operator need to make corresponding operations in time and control the size of the accelerator to adapt to the changes in the driving state. It is also necessary to perform corresponding operations such as shifting gears, adjusting the steering wheel, etc., which is not only inconvenient to operate, but also requires further improvement in operability
[0003] In the case of complex road conditions and harsh working environments, this will bring great inconvenience to drivers and operators, and even affect safe production.

Method used

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  • Accelerator and walking control combination valve assembly
  • Accelerator and walking control combination valve assembly
  • Accelerator and walking control combination valve assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as Figure 1 to Figure 11 As shown, in this embodiment, the combined accelerator and travel control valve assembly mainly includes a pedal mounting seat 100 , a pedal body 200 , and a combined accelerator and travel control valve 300 .

[0053] The throttle and travel control combined valve 300 mainly includes a throttle control device 400 , a travel control combined valve 500 , and a travel direction control solenoid valve 600 .

[0054]The throttle control device 400 mainly includes a reset mechanism and a throttle opening control mechanism 420 .

[0055] The travel control combination valve 500 mainly includes an outer valve body 510 , a combination valve core 512 , a combination return spring 513 and a combination valve control part 514 .

[0056] The traveling direction control solenoid valve 600 mainly includes a solenoid valve body 610, a solenoid valve core 620, an electromagnetic return spring 624 and a solenoid valve control part.

[0057] Preferably, t...

Embodiment 2

[0109] This embodiment also includes an inner valve body 511 , the inner valve body 511 is located in the combined spool chamber 510 b, and the other free end of the outer return spring 5131 pushes against the inner valve body 511 . Through the inner valve body 511, the combination valve oil inlet cavity 510a, the combination valve core cavity 510b, the combination valve distribution cavity 510c and the combination valve oil return cavity 510d can be communicated.

[0110] Preferably, the top of the inner valve body 511 is provided with an inner valve body through hole 5123a adapted to the inner valve core 5122, and the inner valve core lower boss 5122e of the inner valve core 5122 extends into the inner valve body 511, and the inner valve core 5122 The concave part of the inner valve core of the core 5122 and the upper boss 5122d of the inner valve core can freely pass through the through hole 5123a of the inner valve body. When the inner spool 5122 moves down to the working ...

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Abstract

The invention discloses an accelerator and walking control combination valve assembly which comprises an accelerator control pedal assembly for controlling the opening degree of an engine accelerator, a walking control combination valve for controlling the advancing and retreating speed, and a walking direction control electromagnetic valve for controlling the walking direction. When the walking direction control electromagnetic valve is switched into an advancing and retreating state, the opening degree of the accelerator is in direction proportion to the flow of hydraulic fluid communicated with a driving related mechanism through the walking control combination valve. In the driving acceleration or deceleration state or other states, a worker only needs to step on a control part of the combination valve, so the larger the opening degree of the accelerator is, the more the oil is supplied by the hydraulic walking system, and the higher the vehicle speed is; meanwhile, the walking direction control electromagnetic valve is controlled to be switched on or off, so vehicle advancing, retreating and idle states are achieved; due to the more user-friendly control mode, the assembly can adapt to the driving habits of drivers and workers, and great convenient is brought; the assembly is particularly suitable for operation under complicated road conditions and severe working environments, and the comfort and safety of the driving and working states and other states can be further improved.

Description

technical field [0001] The invention relates to a pedal of an engineering vehicle such as a wheeled excavator, in particular to an accelerator and travel control combined valve assembly. Background technique [0002] The current engineering vehicles such as wheeled excavators, in the driving state such as driving, parking, acceleration, deceleration, etc., the driver and the operator need to make corresponding operations in time and control the size of the accelerator to adapt to the changes in the driving state. Also need to do corresponding operation to hang gear, adjust steering wheel etc., not only inconvenient to operate, and operability also needs to be further improved. [0003] In the case of complicated road conditions and bad working environment, this brings great inconvenience to drivers and operators, and even affects safe production. [0004] Therefore, in view of the inconvenient operation of engineering vehicles such as wheeled excavators, it is necessary to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K26/02F15B21/00
CPCB60K26/02F15B21/00F15B21/08F16K11/07
Inventor 谢帮亮林秀丹周红梅
Owner QUANZHOU KINHO CONSTR MACHINERY TECH
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