Hydraulic pilot control system and hydraulic pilot crane provided with same
A technology of hydraulic pilot and control system, applied in the field of hydraulic control, can solve the problems of increasing controller pin resource occupation, high hydraulic control system cost, increasing crane failure points, etc., so as to reduce costs, reduce wiring harness production and installation time, The effect of reducing points of failure
Inactive Publication Date: 2011-09-21
SANY AUTOMOBILE HOISTING MACHINERY
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Problems solved by technology
It can be seen that this protection method leads to a higher cost of the hydraulic control system, prolongs the assembly of the hydraulic pipeline, the production and installation time of the protective solenoid valve harness, and also increases the pin resource occupation of the controller. The fault points during the use of the crane are also not conducive to troubleshooting during the after-sales service
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[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0027] The hydraulic pilot control system according to the first embodiment of the present invention includes: one or more such as Figure 4 The hydraulic pilot handle 3 shown, such as Figure 5 The multiple control oil circuits shown, such as Figure 6 Multiple main oil circuits shown. From Figure 6 As can be seen in , each main oil circuit is provided with a main valve 1 respectively. In addition, each main oil circuit is connected to the corresponding actuator, and the actuator is equipped with a danger signal sensor, which senses the action of the actuator and sends out a danger signal when the action of the actuator is dangerous. From Figure 5 It can be seen in the figure that each control oil circuit is respectively provided with a hydr...
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The invention discloses a hydraulic pilot control system and a hydraulic pilot crane provided with the same. The hydraulic pilot control system comprises a plurality of main oilways, a plurality of control oilways, one or a plurality of hydraulic pilot handles, a master control electromagnetic valve and a plurality of position sensors, wherein the plurality of main oilways are respectively connected to corresponding execution mechanisms, and a main valve is arranged in each main oilway; a hydraulic pilot valve is arranged in each control oilway which is connected to one main valve; each hydraulic pilot handle is connected to the hydraulic pilot valve and respectively conducts the control oilway where one hydraulic pilot valve is in when the hydraulic pilot handle is in each conduction position state; the master control electromagnetic valve is connected with all the control oilways; each position sensor is used for sensing one conduction position state of the hydraulic pilot handles and triggering a handle position signal. By means of the hydraulic control system disclosed by the invention, the cost of the hydraulic control system is reduced, the manufacturing and installing time of wire harnesses for protecting the electromagnetic valve is shorted, and fault points are also reduced.
Description
technical field [0001] The invention relates to the field of hydraulic control, in particular to a hydraulic pilot control system and a hydraulic pilot crane equipped with the system. Background technique [0002] At present, most of the mainstream small-tonnage cranes in the market are controlled by hydraulic methods, such as the control system of hydraulic pilot cranes, which is a mature and widely used hydraulic control system for cranes. Such as figure 1 and figure 2 As shown, its core components are hydraulic pilot handle, main valve 1', hydraulic pilot valve 2' and corresponding protection solenoid valve 4'. Wherein, each main valve 1' is arranged in each main oil circuit, and the conduction of each main oil circuit will cause corresponding mechanical parts of the crane to perform corresponding actions. A single hydraulic pilot handle can move in four directions on a plane and produce four conduction position states. The hydraulic pilot handle is connected with th...
Claims
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IPC IPC(8): B66C13/20B66C15/00
Inventor 李丰周斌颜理
Owner SANY AUTOMOBILE HOISTING MACHINERY