Demounting device for upper cover of electro-hydraulic servo valve
A technology for disassembling tooling and end caps, applied in the field of disassembling tooling for the upper end caps of electro-hydraulic servo valves, can solve problems such as damage to the valve cap or valve body, scratches, etc. stuck effect
Inactive Publication Date: 2012-06-13
SHANGHAI NUOMA HYDRAULIC SYST
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Problems solved by technology
Improper disassembly will scratch or even damage the bonnet or valve body
Method used
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[0009] see figure 1 and figure 2 , the longitudinal section of the upper end cover 1 of the electro-hydraulic servo valve is T-shaped, and six installation holes 100 are symmetrically arranged on the same diameter on the end surface of the head 10 of the electro-hydraulic servo valve. Groove 101, the rod portion 11 of end cover 1 is inserted into the positioning hole (not shown in the figure) of the valve body, and the mounting screw 2 with the screw head 20 of the six mounting holes 100 passing through the six mounting holes 100 and the valve body connect.
[0010] The dismounting tool 3 for the upper end cover of the electro-hydraulic servo valve of the present invention is a chuck slightly larger than a semicircle, and its end face is provided with two diameters in the screw head groove 200 diameter of the mounting screw 2 and the screw of the mounting screw 2. The through holes 30 between the diameters of the head 20, two of the six mounting holes 100 on the correspondi...
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The invention discloses a dismounting tool for an end cap of an electro-hydraulic servo valve, which is a chuck slightly bigger than a semicircle. The end face of the dismounting tool is provided with two through holes with the diameter between those of a groove of a screw head of a mounted bolt and the screw head of the mounted bolt. Two of six mounting holes of the end cap corresponding to the two through holes are arranged in the same straight line. The end edge of the tool extends downward and the free end of the end edge is horizontally bent inward to form a radial groove. The free end of the end edge of the tool is clamped in the radial groove and allows the through holes on the end face of the tool to be communicated with the mounting holes. The dismounting tool for the end cap of the electro-hydraulic servo valve uses the close fit between the an inner groove on the body of the tool and the groove of end cap of the servo valve and dismount a bolt on the end cap to eject the end cap out and dismount the end cap. The tool has the advantages of simple structure, convenient use, no damages to the valve body and the end cap, and high working efficiency.
Description
technical field [0001] The invention relates to a dismantling tool for precision parts, in particular to a dismantling tool for an upper end cover of an electro-hydraulic servo valve. Background technique [0002] The development of electro-hydraulic servo valves in the international professional field has gone through more than 50 years, and the application occasions are becoming more and more extensive. However, the research and manufacture of domestic servo valves are still in a relatively backward state, and the technical level of the combination and assembly of parts is also far behind that of foreign countries. As an important part of the RT7626M electro-hydraulic servo valve, if the end cover is not properly disassembled, it will scratch or damage the valve body or the valve cover, thereby affecting the performance of the entire valve. Therefore, the disassembly of the end cover on the valve body is very It seems especially important. At present, for the RT7626M ele...
Claims
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IPC IPC(8): B25B27/24
Inventor 曹勇张永生张学忠
Owner SHANGHAI NUOMA HYDRAULIC SYST