Reliability test method and device of gripping tool rotating body of forestry crane
A test method, technology of rotating body, applied in the direction of measuring device, rotating or swinging piston engine, machine/structural component testing, etc., can solve the problem of not being able to better evaluate the reliability of the gripper rotating body
Inactive Publication Date: 2011-01-12
XUZHOU CONSTR MACHINERY INST XUZHOU CONSTR MACHINERY GRP
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Problems solved by technology
At present, there is no reliability test method for the grip rotating body of forestry cranes, and the reliability of the grip rotating body cannot be better evaluated
Method used
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Embodiment 1
[0015] Embodiment 1: The test hydraulic system includes a motor 1, a variable displacement pump 2, a first pressure gauge 3, an electro-hydraulic proportional overflow valve 4, a flow meter 5, a one-way valve 6, a first electromagnetic reversing valve 7, a second electromagnetic reversing valve Directional valve 8, second pressure gauge 9, gripper rotating body 10, third pressure gauge 11, third electromagnetic directional valve 12, fourth electromagnetic directional valve 13, oil tank 14, flow distributor 15, cycloidal motor 16 , the first hose 17, the second hose 18 and the inertial load 19, the motor is connected to the variable pump, the oil outlet of the variable pump is connected to the oil tank through the electro-hydraulic proportional overflow valve, and the oil outlet of the variable pump is connected to the first pressure gauge , the oil outlet of the variable pump is also connected to the input port of the first electromagnetic reversing valve and the fourth electro...
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A reliability test method and device of the gripping tool rotating body of a forestry crane belong to a method and device for performing the reliability test to the rotating body. In the device of the invention, the electric motor of a test hydraulic system is connected with a variable pump; the oil outlet of the variable pump is connected with a first pressure gauge, the oil outlet is also connected with the input ports of a first magnetic exchange valve and a fourth magnetic exchange valve simultaneously through flowmeters and check valves; the output port of the first magnetic exchange valve is connected with a oil tank through a second magnetic exchange valve; the output port of the fourth magnetic exchange valve is connected with a third pressure gauge and the flow distributor of the gripping tool rotating body simultaneously; the gripping tool rotating body is composed of the flow distributor and a gerotor motor; and the flow distributor is communicated with the inner oil passage of the gerotor motor through a first hose and a second hose. The invention has the following advantages: the rotary speed of the rotating body can be continuously adjusted and the test pressure of the system can be continuously adjusted. Under different rated loads, the stability and reliability of the technical characteristics of the rotating body can be completely tested.
Description
technical field [0001] The invention relates to a reliability test method and device for a rotary body, in particular to a reliability test method and device for a forestry crane gripper rotary body. Background technique [0002] The rotating body of the forestry crane grab is composed of a cycloidal hydraulic motor and a flow distributor, which is directly connected to the wood grab and used to control the rotation and pick and place of the grab. The gripper has a large load when grabbing and placing wood, which makes the rotating body of the gripper have a large rotational inertia load, and there is a large hydraulic shock during the starting, braking and reversing processes, which has a certain impact on product reliability. In order to evaluate whether the reliability characteristic quantity of the cycloidal hydraulic motor and flow distributor of the rotating body reaches the required level; check the stability and reliability of the technical performance of the product...
Claims
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IPC IPC(8): G01M99/00F03C4/00
Inventor 杨力夫景军清杨涛王月行刘莹莹范旭辉
Owner XUZHOU CONSTR MACHINERY INST XUZHOU CONSTR MACHINERY GRP