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A tool for dismantling a counter-pressure shoulder bush and a method for dismantling a counter-pressure shoulder bush
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A bushing and tool technology, which is applied in the field of dismantling the pressure shoulder bushing, can solve the problems of damage to the surface of the bottom hole of the base body, unstable force application direction, large impact force, etc., and achieves small working space, uniform thrust transmission, Avoid damaging effects
Active Publication Date: 2016-01-20
SHENYANG AIRCRAFT CORP
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Problems solved by technology
The bushing is required not to damage the surface of the bottom hole of the substrate during the withdrawal process. However, dismantling the bushing in this way will easily cause damage to the surface of the bottom hole of the substrate due to the large impact force and unstable force direction. In severe cases, the entire bottom hole will be damaged. The base parts are scrapped, and the quality of bushing removal is very unstable, which brings great risks to the replacement of bushings
If it is constructed on an aircraft, due to the impact force of the hammer, parts with poor rigidity may be deformed, which will affect the quality of aircraft products
Method used
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Embodiment 1
[0017] Embodiment 1 A tool for removing the pressure shoulder bushing
[0018] like Figure 1-Figure 4 As shown, a tool for dismounting the pressure shoulder bushing is composed of a stopper 1, a bolt 2, a nut I3, a nut II4, a top block I5 and a top block II6.
[0019] Block 1 is provided with notch Ⅲ1-1, the inner dimension of notch Ⅲ1-1 is larger than the outer edge dimension of the shoulder of bushing Ⅰ7 and bushing Ⅱ8 to be disassembled (clearance fit), and the depth H of notch Ⅲ1-1 It is greater than the height h of the bush I7 and bush II8 to be removed.
[0020] One end surface of the top block I5 is provided with a notch I5-1 for matching with the nut I3, and the outer surface of the top block I5 has two symmetrical arc-shaped bosses 5-2.
[0021] One end surface of the top block II6 is provided with a notch II6-1 for matching with the nut I3.
[0022] When disassembling the bushing I7, one end of the bolt 2 is connected with the nut II4; the other end passes throug...
Embodiment 2
[0024] Embodiment 2 A method of disassembling the pressure shoulder bushing
[0025] The anti-pressure shoulder bushes installed in the base hole 9, that is, the bush I7 and the bush II8, are disassembled from the base hole 9, using the tool of Example 1, and the method is as follows:
[0026] 1) Two grooves corresponding to the arc-shaped boss 5-2 on the top block I5 are symmetrically ground on the inner hole wall of the bushing II8;
[0027] 2) Disassemble the bushing Ⅰ7: clamp the block 1 on the outer edge of the bushing Ⅰ7, make the outer edge of the shoulder of the bushing Ⅰ7 fall into the notch Ⅲ1-1, and fit it with the notch Ⅲ1-1, the bolt 2 One end is connected with the nut Ⅱ4, the other end passes through the block 1, the bushing Ⅰ7 and the bushing Ⅱ8 in turn, and the nut Ⅰ3 is installed in the notch Ⅰ5-1 of the top block Ⅰ5, and then installed to the other end of the bolt 2 together, the top block The arc-shaped boss 5-2 of Ⅰ5 falls into the groove ground on the bus...
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Abstract
The invention relates to a tool for disassembling oppositely pressed shoulder bushings and a method for the disassembling oppositely pressed shoulder bushings. According to the adopted technical scheme, the tool is composed of a baffle plate, a bolt, a nut I, a nut II, a top block I and a top block II; a notch I matched with the nut I is formed in the end face of one side of the top block I, and two symmetric arc-shaped bosses are arranged on the outer side face of the top block I; a notch II matched with the nut I is formed in the end face of one side of the top block II; one end of the bolt is connected with the nut II after passing through the baffle plate; the other end of the bolt is connected with the nut I and the top block I which are matched together through the notch I, or the other end of the bolt is connected with the nut I and the top block II which are matched together through the notch II. The oppositely pressed shoulder bushings can be accurately disassembled by adopting the tool and the method, the bottom holes of a base body cannot be damaged, and the quality of disassembling the bushings is guaranteed.
Description
technical field [0001] The invention relates to a tool capable of accurately dismounting a pressure shoulder bush and a method for disassembling the pressure shoulder bush. Background technique [0002] The so-called pressing shoulder bushing refers to the bush combination formed by pressing a group of bushes with shoulders along both sides of the base hole. During the use of the bushing, the bushing needs to be disassembled and replaced due to bushing wear or specification changes. The traditional method of disassembling the bushing is to grind two grooves symmetrically on the inner hole wall of one side of the bushing, and then apply force with a hammer to withdraw the bushing on the other side along the grooves. The bushing is required not to damage the surface of the bottom hole of the substrate during the withdrawal process. However, dismantling the bushing in this way will easily cause damage to the surface of the bottom hole of the substrate due to the large impact f...
Claims
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Application Information
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