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HST control mechanism and agricultural machinery

A control mechanism and driving mechanism technology, applied in the layout of power plant control mechanism, mechanical equipment, control device and other directions, can solve problems such as poor directional stability, improve directional stability, reduce labor intensity, and high safety Effect

Active Publication Date: 2020-01-03
LOVOL HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that domestic agricultural machinery equipped with HST generally adopts a manual operation handle to control the displacement of HST, resulting in poor directional stability

Method used

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  • HST control mechanism and agricultural machinery
  • HST control mechanism and agricultural machinery
  • HST control mechanism and agricultural machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-Figure 3 As shown, an HST control mechanism of this embodiment includes an HST displacement adjusting member 1, a shift mechanism 6, a forward end swing arm 2, a backward end swing arm 3, and a drive mechanism 5, which is hinged on the machine On the frame, the power end of the drive mechanism 5 is connected to the foot throttle 4 through the foot throttle cable 41, the drive end of the drive mechanism 5 is connected to the engine through the engine throttle cable 42, and the drive ends of the drive mechanism 5 are connected to the engine respectively. Connected with the forward end swing arm 2 and the backward end swing arm 3, the forward end swing arm 2 and the backward end swing arm 3 are respectively connected to the shift mechanism 6 and realize the forward mode and the reverse mode through the shift mechanism 6 Switch, the shifting mechanism 6 is connected to the HST displacement adjusting member 1; wherein, in the forward mode or the reverse mode...

Embodiment 2

[0052] An agricultural machine of this embodiment includes an engine, an HST 8 and the HST control mechanism, and the HST displacement adjusting member 1 is installed on the HST 8 for adjusting displacement. The agricultural machinery of this embodiment can ensure that the steering wheel is held with both hands when increasing and decelerating, reducing the "S" shape of the working route, improving directional stability, without frequent operation of the handle bar, high comfort, and greatly reducing the driver’s labor intensity. When climbing hills, crossing bridges and getting on trucks, the steering wheel is operated with both hands, which is safe.

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Abstract

The invention relates to an HST control mechanism and agricultural machinery. The HST control mechanism comprises an HST displacement adjusting part, a gear shifting mechanism, a forward end swing arm, a backward end swing arm and a driving mechanism; the driving mechanism is hinged to a rack, a power end of the driving mechanism is connected with a foot pedal accelerator through a foot pedal accelerator throttle wire, a driving end I is connected with an engine through an engine throttle wire, and a driving end II of the driving mechanism is connected with the forward end swing arm and the backward end swing arm correspondingly; the forward end swing arm and the backward end swing arm are connected to the gear shifting mechanism correspondingly and realize the switching of a forward modeand a backward mode through the gear shifting mechanism, and the gear shifting mechanism is connected with the HST displacement adjusting part. In the forward mode or the backward mode, the driving mechanism drives an engine accelerator to simultaneously drive the forward end swing arm or the backward end swing arm to swing, and then the gear shifting mechanism acting synchronously with the driving mechanism pushes the HST displacement adjusting part to increase or decrease the HST displacement.

Description

Technical field [0001] The invention relates to the field of agricultural machinery, in particular to an HST control mechanism and agricultural machinery. Background technique [0002] At present, the existing domestic agricultural machinery equipped with HST (Hydraulic Continuously Variable Transmission) generally adopts manual control of HST displacement. When walking, one hand is required to control the handle to change the HST displacement to control the speed of the whole machine. , Only one hand controls the steering wheel, resulting in poor directional stability, and the walking route is likely to be "S". Because agricultural equipment needs to frequently adjust the operating speed during operation, the existing manual shift control method has high labor intensity and poor directional stability; in addition, when climbing, crossing ridges and loading trucks, if you need to change forward or backward in the middle Speed ​​requires one hand to control the handle and the oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K26/02B60K26/04B60K20/02F16H59/02F16H63/30
CPCB60K20/02B60K26/02B60K26/04F16H59/02F16H63/30
Inventor 王桂民于克港李玉彪刘然陈福昌王乐刚
Owner LOVOL HEAVY IND CO LTD
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