A stepped disassembly device applied to cartridge valves
A dismantling device and a stepped technology, applied in the field of stepped dismantling devices, can solve the problems of large environmental pollution, increase in effective length, and difficulty in dismantling a hydraulic cartridge valve.
Active Publication Date: 2021-03-12
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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Problems solved by technology
In order to ensure the accuracy and response speed of the hydraulic control, the hydraulic valve table is set at a position close to the hydraulic actuator. Due to the large environmental pollution on site, the hydraulic valve table is protected by a closed box, and the design of the hydraulic valve table is compact. The cartridge valve is located in a relatively narrow space due to the structural characteristics of the hydraulic valve, the relatively small size of the hydraulic valve, and the closed box. Hardening, or the remaining impurities in the sealing groove have been hardened, so that the upper valve sleeve and the lower valve sleeve are connected as a whole, and the effective length of the cartridge valve and the valve table body is increased and the fit is precise, which brings great convenience to the disassembly of the hydraulic cartridge valve. In the prior art, there are few devices and tools for dismantling the cartridge valve in a narrow space. For this reason, other related equipment in the surrounding area needs to be dismantled, which affects the progress of maintenance and causes new hidden troubles
Method used
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Embodiment
[0017] A certain type of cartridge valve structure in this embodiment, such as figure 1 As shown, it is mainly composed of cover plate, spring, upper valve sleeve seal, upper valve sleeve, upper-lower valve sleeve seal, lower valve sleeve, valve core, and lower valve sleeve seal. The upper valve sleeve is sealed by sealing, the upper valve sleeve and the lower valve sleeve are sealed by the upper-lower valve sleeve seal, and the lower valve sleeve and the valve table body are sealed by the lower valve sleeve seal. The spool falls completely to the bottom of the lower valve sleeve, cutting off the passage of hydraulic oil. At this time, it is in a closed state. There is a step surface with a diameter of M-N and a height of H between the upper valve sleeve and the lower valve sleeve.
[0018] A stepped dismantling device of this embodiment applied to dismounting and assembling valves includes a stepped shaft component, an external threaded sleeve and a pressure plate.
[0019] ...
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The invention relates to a stepped disassembly device applied to a cartridge valve, belonging to the technical field of cold rolling hydraulic equipment maintenance. The stepped disassembly device applied to the cartridge valve includes a stepped shaft part, an external thread sleeve and a pressure plate; the stepped shaft part includes two side parts and a middle part, the middle part is a T-shaped structure as a whole, and the top of one side part is made There is a step matched with the middle part, and a boss is formed on the bottom of the other side of the side part; the outer threaded sleeve is sleeved on the stepped shaft part, and the second locking bolt hole is opened on the outer threaded sleeve, and the first locking bolt hole and The position of the second locking bolt hole is coordinated; the four corners of the pressure plate are respectively provided with fixing bolt holes, the middle part of the pressure plate has a through hole for inserting the external thread sleeve, and two anti-rotation holes are provided in the direction of the transverse centerline of the pressure plate Bolt hole. The present invention presets the disassembly device in the narrow space of the cartridge valve through the separation structure, and then splices and assembles it to become a convenient disassembly tool.
Description
technical field [0001] The invention relates to a stepped dismantling device applied to a cartridge valve, and belongs to the technical field of cold rolling hydraulic equipment maintenance. Background technique [0002] The main hydraulic equipment of cold rolling includes devices such as bending rolls, stringing rolls, and pressing. In order to ensure the accuracy and response speed of the hydraulic control, the hydraulic valve table is set at a position close to the hydraulic actuator. Due to the large environmental pollution on site, the hydraulic valve table is protected by a closed box, and the design of the hydraulic valve table is compact. The cartridge valve is located in a relatively narrow space due to the structural characteristics of the hydraulic valve, the relatively small size of the hydraulic valve, and the closed box. Hardening, or the remaining impurities in the sealing groove have been hardened, so that the upper valve sleeve and the lower valve sleeve a...
Claims
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IPC IPC(8): B25B27/02
CPCB25B27/023
Inventor 徐天亮
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE