Multi-way valve control device of hydraulic excavator
A technology for hydraulic excavators and control devices, which is applied to earth movers/shovels, construction, etc., and can solve problems such as high precision requirements for parts manufacturing, uneconomical hydraulic pilot control methods, high use and maintenance costs, and achieve cost savings. Low cost, simple structure and convenient operation
Inactive Publication Date: 2013-03-20
GUANGXI YUCHAI HEAVY IND
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Problems solved by technology
[0002] At present, hydraulic pilot control is the main control method for hydraulic excavator multi-way valve control. The disadvantage of hydraulic pilot control is that the parts of the control device require high manufacturing precision, which leads to high use and maintenance costs. In the pursuit of practical and low-cost Occasions, the hydraulic pilot control method is uneconomical
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[0013] Such as figure 1 As shown, a hydraulic excavator multi-way valve control device is composed of a pedal 1, a pedal pin 2, a locking plate 3, a push-pull rod 4, a mounting seat 5, a spring 6, a sleeve pin 7, and a turning sleeve Tube 8, and push-pull flexible shaft 9. The pedal 1 is installed on the pedal pin 2, and the pedal pin 2 is connected with the push-pull rod 4 and installed on the mounting seat 5; the sleeve pin 7 is installed in the turning sleeve 8 and connected with the push-pull rod 4, and the push-pull is soft. The shaft 9 is connected to the sleeve pin 7; one end of the locking plate 3 is connected to the pedal pin 2, and the other end is connected to the spring 6; the spring 6 is installed on the mounting seat 5.
[0014] Pedal 1, pedal pin 2, mounting seat 5, overturning sleeve 8, sleeve pin 7 and push-pull rod 4 form a four-bar linkage mechanism, and locking plate 3 and spring 6 form a locking mechanism. The multi-way valve control device is installed ...
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The invention discloses a multi-way valve control device of a hydraulic excavator, and the device comprises a pedal, a pedal pin shaft, an installation seat, a turnover sleeve, a sleeve pin shaft, a push-pull rod and a push-pull soft shaft; the pedal is arranged on the pedal pin shaft; the pedal pin shaft and the push-pull rod are connected and are arranged on the installation seat; the sleeve pin shaft is arranged in the turnover sleeve and is connected with the push-pull rod; the push-pull soft shaft is connected with the sleeve pin shaft; a spring is arranged on the installation seat; and the spring and the pedal pin shaft are connected through a locking plate. According to the multi-way valve control device of the hydraulic excavator, the installation seat is arranged on the bottom plate of a driver cab of the hydraulic excavator, the push-pull soft shaft is connected with a multi-way valve, the push-pull soft shaft is pushed by treading on the pedal back and forth, so that a multi-way valve core of the hydraulic excavator is driven, the multi-way valve of the hydraulic excavator is controlled, the hydraulic excavator carries out corresponding action, and the multi-way valve control device of the hydraulic excavator has the advantages that the device can be operated by feet, the use is safe and reliable, the operation is convenient and comfortable, the structure is simple, and the cost is low.
Description
technical field [0001] The invention relates to a hydraulic excavator multi-way valve control device, in particular to a device for controlling the hydraulic excavator multi-way valve in a mechanical structure. Background technique [0002] At present, hydraulic pilot control is the main control method for hydraulic excavator multi-way valve control. The disadvantage of hydraulic pilot control is that the parts of the control device require high manufacturing precision, which leads to high use and maintenance costs. In the pursuit of practical and low-cost Occasionally, the hydraulic pilot control method is uneconomical. The main application occasions of small hydraulic excavators are farms and municipal maintenance projects. The use cost of the machine is particularly concerned. Due to the low cost of the control device parts, the mechanical multi-way valve control method is mostly used in the multi-way valve control device on small hydraulic excavators. Mechanical control...
Claims
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Inventor 韦康陈路烨严茂林李才斌周权刘志威梁柱黄平黄升庞金才林坤梁晓东
Owner GUANGXI YUCHAI HEAVY IND