Hydraulic multi-way valve sleeve and engineering machine
A multi-way valve and valve sleeve technology, which is applied in the direction of mechanical equipment, fluid pressure actuators, servo motor components, etc., can solve the problem of unreliable positioning and fastening of valve sleeves, easy cutting of seals, difficulties in disassembly and maintenance, etc. problems, to achieve the effect of simplifying the assembly process, improving the sealing performance, and solving the complex assembly process
Inactive Publication Date: 2013-12-11
SHANGHAI SANY HEAVY IND
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[0030] In further embodiments of the present invention, please continue to refer to Figure 1-4 As shown, the valve sleeve sealing ring 4 is installed between the valve sleeve 2 and the valve body 1 .
[0031] In a further embodiment of the present invention, the oil port sealing ring 6 is installed in the oil port 5 of the valve body.
[0032] In a further embodiment of the present invention, the oil ports 5 are arranged at a certain distance.
[0033] In a further embodiment of the present invention, the outer shape of the valve body 1 is circular.
[0034] In a further embodiment of the present invention, the outer shape of the valve sleeve 2 is circular.
[0035] In a further embodiment of the present invention, the sealing ring 4 of the valve sleeve is an O-ring.
[0036] When using the present invention, the user can follow the steps below:
[0037] Install the oil port sealing ring 6 into the oil port 5 of the valve body 1 first, then connect the valve sleeve 2 ...
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The invention discloses a hydraulic multi-way valve sleeve. The hydraulic multi-way valve sleeve comprises a valve body, a valve element, oil port sealing rings, a valve sleeve sealing ring and a valve sleeve body. The valve element is installed inside the valve sleeve body, the valve sleeve body is installed inside the valve body, a plurality of oil ports are formed in the valve body, an internal thread is arranged inside the valve body, a groove is formed in a port of the valve body, one end of the valve sleeve body is provided with an external thread, the right end of the valve sleeve body is provided with a shaft shoulder which is in an external hexagon shape, and the end face of the valve sleeve sealing ring is a conical surface. The problems that the assembling technique is complex, dismounting and maintaining are difficult, the valve sleeve body is positioned and fastened unreliably, the sealing performance is poor, and a sealing piece is cut and damaged easily exist in the existing valve sleeve manufacturing technology. By means of the hydraulic multi-way valve sleeve, the valve sleeve body and the valve body are in threaded connection, the valve sleeve body is positioned and fastened, and the problems that when a maintenance worker maintains the hydraulic multi-way valve sleeve,dismounting and maintaining are difficult and the sealing piece is cut and damaged easily due to the poor sealing performance are solved.
Description
[0001] technical field [0002] The invention relates to a structure of a valve sleeve, in particular to a valve sleeve of a hydraulic multi-way valve and construction machinery. [0003] Background technique [0004] As one of the core components of the construction machinery hydraulic system, the performance of the multi-way valve has a decisive impact on the control performance and reliability of the whole machine. The existing valve sleeve structure basically adopts the interference fit between the valve sleeve and the valve body, and uses cold pressing technology to assemble and fix; or processes the sealing structure on the valve sleeve for sealing. The above-mentioned structure has defects such as difficult assembly and disassembly, easy damage to the seal, poor sealing performance, and inaccurate positioning, which directly affect the assembly, maintenance and performance of the multi-way valve. [0005] Contents of the invention [0006] In view of this, the pr...
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IPC IPC(8): F15B13/02
Inventor 陈克雷徐建
Owner SHANGHAI SANY HEAVY IND