Multi-function rotary motor overflow valve
A rotary motor, relief valve technology, applied in servo motor components, fluid pressure actuation devices, mechanical equipment and other directions, can solve the problems of high processing cost, long processing and assembly time, etc., to reduce processing and assembly time, reduce Impact, Great Use Prospects, and Economic Benefits
Pending Publication Date: 2018-09-18
龙工(上海)精工液压有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to solve the problem that two check valves are added to the hydraulic motor in order to prevent cavitation, which makes the processing and assembly time long and the processing cost is high
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Embodiment Construction
[0019] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.
[0020] The present invention is a multifunctional rotary motor relief valve, which is installed on the main oil circuit of the rotary system, such as figure 1 As shown, it is mainly composed of buffer valve rod 1, rod seat 2, coupling sleeve 3, first spring 4, spring seat 5, second spring 6, cone spool 7, ball spool 8, spool seat 9, etc. The right end of the rod seat 2 is set in the left end of the coupling sleeve 3 and is sealed and connected with each other through a rubber ring. The right end of the rod 1 is arranged in the left end of the spring seat 5 and is connected to each other. The outside of the spring seat 5 is provided with a first spring 4, and the two ends of the first spring 4 are respectively connected to the raised part of the right end of the spring seat 5 and the buffer valve rod 1. The raised part in the midd...
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The invention discloses a multi-function rotary motor overflow valve. The multi-function rotary motor overflow valve is characterized by comprising a rod seat, a seal cover is arranged at the left endof the rod seat, the right end of the rod seat is arranged in the left end of a joining sleeve and the right end of the rod seat and the left end of the joining sleeve are connected to each other, and a valve body is arranged on the outer side of the joint of the rod seat and the joining sleeve. A buffer valve rod is arranged in the rod seat, the right end of the buffer valve rod is arranged in the left end of a spring seat and the right end of the buffer valve rod and the left end of the spring seat are connected to each other, a first spring is arranged on the outer side of the spring seat,two ends of the first spring are separately connected with the right end of the spring seat and the buffer valve rod, and the right end of the spring seat is connected with the left end of a cone valve core. The left end of the cone valve core is arranged in the right end of the spring seat, the right end of the cone valve core is matched with a valve core seat on the right side, a ball valve core is arranged on the outer side of the cone valve core, and a second spring used for controlling the size of an opening of the ball valve core is arranged at the position, between the ball valve coreand a valve body, of the outer side of the joining sleeve. The multi-function rotary motor overflow valve can reduce the impact, realizes the buffer, plays the role of oil supplementation, and can bewidely used in rotary systems such as excavators, cranes, rotary drilling and the like.
Description
technical field [0001] The invention relates to a multifunctional rotary motor relief valve, which is suitable for engineering machinery such as excavators, cranes, and rotary drills, and belongs to the technical field of hydraulic valve products. Background technique [0002] For rotary construction machinery such as excavators, the start and stop of the rotary mechanism will bring a great impact. In addition, when the rotary motor stops, the oil inlet and outlet ports of the multi-way valve are closed. Due to the inertia, the rotary motor at this time becomes a pump operation mode, and the original oil inlet port appears empty, which will produce a huge abnormal sound. A common solution is to set two overflow valves and two one-way valves on the hydraulic circuit to respectively absorb shock and replenish oil to the vacuum chamber. [0003] In order to prevent cavitation, two additional one-way valves are added to the hydraulic motor, which requires additional processing ...
Claims
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IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 陈超王康恋余红波
Owner 龙工(上海)精工液压有限公司