A portable combination tool for quick and complete disassembly and reassembly of sealing cup assembly
A combined tool and portable technology, applied in the direction of hand-held tools, manufacturing tools, etc., can solve the problems of anti-pollution control of unfavorable products, harsh working conditions, and reduced product maintainability.
Inactive Publication Date: 2018-05-22
BEIJING HANGKE ENGINE CONTROL SYST SCI & TECH
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Problems solved by technology
The conventional disassembly method needs to decompose the pump cover and the transmission shaft, and then punch or hook the sealing cup to take it out. The removal process will cause damage to the cup assembly and produce secondary pollutants, which is not conducive to the anti-pollution control of the product
[0003] The hydraulic mechanical device of the fuel system of the aero-engine generally has harsh working conditions in the field. After the sealing cup fails, the external field does not have the conditions to disassemble the pump cover and the drive shaft, resulting in the entire hydraulic mechanical device being returned to the manufacturer for sealing the cup. Replacement work reduces the maintainability of the product
Method used
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Embodiment Construction
[0015] The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.
[0016] The present invention will be described in further detail below. See figure 1 ,
[0017] A portable combination tool for quick and complete disassembly and reassembly of a sealing leather cup assembly, comprising an expansion sleeve (1), a wedge (2), a ring (3), a screw (4), a knurled nut (5), a fastening Nut (6), support screw (7), frame screw (8), pressure plate (9), pull nut (10), pull rod (11), nut (12), armrest screw (13), base (14), It is composed of a pressing rod (15) and a pressing block (16);
[0018] Among them, the expansion sleeve (1) has four sharp claws, and when extending into the rubber of the sealing cup assembly, the sharp claws open at all four places, and penetrate into the rubber of the sealing cup assembly, and the wedge (2) is installed on the expansion sleeve (2). 1) In...
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The invention relates to a portable combination tool for quick and complete disassembly and reinstallation of a sealed leather bowl module. The portable combination tool consists of an expansion sleeve (1), a wedge (2), a ring (3), a screw (4), a knurled nut (5), a fastening nut (6), a support screw rod (7), a frame screw (8), a pressing plate (9), a lifting nut (10), a pull rod (11), a nut (12), an armrest screw rod (13), a base (14), a pressing rod (15) and a pressing block (16). The portable combination tool adopts a portable structure design, is convenient for disassembly and assembly operation, can accurately position to realize quick taking-out of the sealed leather bowl module without splitting a transmission shaft and a pump cover, is gentle in disassembly process, is free of damaging adjacent parts, and is complete in shape of the sealed leather bowl after disassembly without falling objects.
Description
technical field [0001] The invention belongs to the technical field of gear pump sealing cup assembly disassembly and assembly tool design, and relates to the design of a combined tool for quickly and completely disassembling and reassembling a sealing cup without disassembling a transmission shaft. Background technique [0002] When the gear pump is used as the pressure oil source in the hydraulic mechanical device of the aero-engine fuel system, the rotating parts such as the transmission shaft inevitably need to be equipped with a dynamic sealing structure, and the rubber sealing cup assembly structure is generally adopted (see the appendix). figure 1 ), the sealing cup assembly is installed inside the pump cover. When working, the spring sealing cup assembly and the transmission shaft are completely fitted to form a dynamic friction pair to seal the oil end. If the sealing cup assembly is long-term After use, the sealing effect is invalid, and it needs to be replaced wit...
Claims
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IPC IPC(8): B25B27/00
CPCB25B27/0028
Inventor 李学明李崇刘长兴
Owner BEIJING HANGKE ENGINE CONTROL SYST SCI & TECH