Disassembling device for sealing assembly

Abstract

The utility model provides a disassembling device for a sealing assembly. The disassembling device comprises a base, a supporting piece, a supporting assembly, a positioning needle and a force application assembly. The sealing assembly to be disassembled is located on the supporting piece, and the positioning needle corresponds to a positioning small hole in the bottom of the sealing assembly and is used for ejecting the sealing leather cup upwards. The supporting assembly is used for supporting the force application assembly, a force application assembly body can move up and down along a guide hole in the center of the supporting assembly, the lower end of the force application assembly is provided with an abutting part abutting against the outer circle step face of the sealing lining, and by rotating a handle of the force application assembly, the abutting part of the force application assembly moves downwards to abut against the outer circle step face of the sealing lining. Meanwhile, the positioning needle upwards abuts against the sealing bush, so that the sealing leather cup is separated from the sealing bush; the problem that a sealing assembly is easily damaged due to the traditional operation of knocking an ejector pin through a hammer to strike the sealing leather cup is solved, and the decomposition efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of aviation repair technology, and specifically relates to a disassembly device for sealing device components. Background Technology

[0002] The sealing assembly is a crucial component of the fuel pump regulator, and its condition directly affects the sealing performance and specifications during engine operation. The sealing assembly includes a sealing bushing and a sealing cup, with the sealing cup housed within the sealing bushing. During fuel pump regulator repair, the sealing cup needs to be replaced. The traditional replacement method involves using a hammer to strike a pin, disassembling the component by impact. However, due to the precision of the sealing assembly, the striking force is limited by human error. Forcing disassembly can damage the working surface of the sealing assembly, rendering it unusable. Furthermore, detached parts can easily injure the operator. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing methods for disassembling sealing components, which easily cause damage to the working plane of the parts and pose safety risks, and to provide a disassembly device for sealing components.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A disassembly device for a sealing assembly, the sealing assembly including a sealing bushing and a sealing cup, the sealing cup being fitted into the inner hole of the sealing bushing; the center of the large end face of the sealing bushing is an annular working plane, and the edge of the large end face is a non-working plane, the working plane protruding outward along the axial direction relative to the non-working plane; a plurality of positioning holes are provided circumferentially on the working plane, the positioning holes being aligned with the end face of the sealing cup; the edge of the large end of the sealing bushing has a plurality of outwardly opening first locking interfaces; the disassembly device includes a base, a support member, a support assembly, a positioning pin, and a force application assembly.

[0006] The support assembly includes a cover plate and two support columns; the two support columns are vertically and symmetrically fixed at both ends of the top surface of the base, and the cover plate is fixed at the top of the support columns; the cover plate has a guide hole in the center to allow the force-applying assembly to move up and down;

[0007] The upper end of the force-applying component is used to apply power to make the force-applying component move up and down, and the lower end of the force-applying component has a vertically downward-positioned abutment, which is used to abut the outer circular stepped surface of the sealing bushing.

[0008] The support member is coaxially fixed to the middle of the top surface of the base, and the middle of the support member has an annular protrusion. The annular protrusion can fit with the non-working plane of the sealing bushing, so that the working plane is located inside the annular protrusion and does not contact the top surface of the support member.

[0009] Several positioning pins are circumferentially and vertically fixed in the middle of the top surface of the support member and located inside the annular protrusion. The positioning pins correspond to the positioning holes on the working plane of the sealing bushing. The positioning pins are used to push the sealing cup upward when the top of the force application component pushes downward against the outer circular step surface of the sealing bushing, so that the sealing cup is separated from the sealing bushing.

[0010] Furthermore, it also includes guide rods, two of which are vertically and symmetrically fixed to the top surface of the support member, and the guide rods are located outside the annular protrusion of the support member;

[0011] The top of the force-applying component can slide up and down along the guide rod, and the first snap-fit ​​interface at the large end edge of the sealing bushing can be radially snapped onto the outer wall of the guide rod.

[0012] Furthermore, the force-applying component includes a screw and a handle connected to the abutment; the guide hole at the center of the cover plate is a screw hole; the upper end of the screw is vertically fixed to the middle of the handle, the screw body is connected to the screw hole, and the lower end of the screw is coaxially fixed to the abutment.

[0013] The lower end face of the top is vertically symmetrically provided with two concave inward arc-shaped structures. The two arc-shaped structures form a space that encloses the outer circle of the sealing bushing, and the end face of the arc-shaped structure can abut against the outer circle step surface of the sealing bushing.

[0014] Furthermore, the abutment includes a column and a connecting plate coaxially connected; the upper end of the column is provided with a countersunk hole along the axis, the lower end of the screw of the force application component has an optical axis that is inserted into the countersunk hole, and the optical axis is radially fixed to the column;

[0015] The arc-shaped structure is perpendicularly connected to the lower end face of the connecting plate.

[0016] Furthermore, the connecting plate has two symmetrically arranged second card interfaces at both ends, and the top end of the guide rod passes through the second card interface with a clearance fit.

[0017] Furthermore, the second card interface is a U-shaped hole with the opening facing outwards.

[0018] Furthermore, the upper end of the screw is fixedly connected to the handle by welding.

[0019] Furthermore, the length of the positioning pin is not less than the thickness of the sealing bushing.

[0020] The advantages of this utility model are:

[0021] 1. The disassembly device of this utility model is designed with a base, a support member, a support assembly, a positioning pin, and a force application assembly. The sealing assembly to be disassembled is located on the support member, and the positioning pin corresponds to the positioning hole at the bottom of the sealing assembly to push the sealing cup upward. The support assembly supports the force application assembly, and the body of the force application assembly can move up and down along the guide hole in the center of the support assembly. The lower end of the force application assembly has a top abutting against the outer circular stepped surface of the sealing bushing. By rotating the handle of the force application assembly, the top abutting against the outer circular stepped surface of the sealing bushing moves downward, while the positioning pin pushes the sealing cup upward, causing the sealing cup to separate from the sealing bushing. This overcomes the problem that the traditional operation of striking the sealing cup with a hammer can easily damage the sealing assembly, and the disassembly efficiency is high.

[0022] 2. In this utility model, an annular protrusion is designed in the middle of the support component, and the positioning pin is located inside the annular protrusion. When the large end of the sealing bushing approaches the top of the support component, the non-working plane of the large end of the sealing bushing contacts the end face of the annular protrusion first. This ensures that the working plane located in the middle of the large end of the sealing bushing is inside the annular protrusion and does not contact the support component. This prevents damage to the working plane of the sealing bushing when it moves downward and contacts the support component under the action of the force application component. This avoids the problem of part scrapping caused by damage to the working plane caused by traditional methods, reduces maintenance costs, and improves production economic efficiency.

[0023] 3. During the disassembly of the sealing component using the disassembly device of this utility model, the sealing component is pushed upward by the positioning pin and locked in place by the guide rod, making the disassembly process safe and preventing harm to the operator.

[0024] 4. The decomposition device of this utility model has a simple and lightweight structure and low manufacturing cost. Attached Figure Description

[0025] Figure 1 This is a front sectional view of the decomposition device of this utility model;

[0026] Figure 2 This utility model's decomposition device is along Figure 1 AA section view in the middle;

[0027] Figure 3 This is a schematic diagram of the sealing component structure;

[0028] Figure 4 This is a top view of the sealing component;

[0029] Figure 5 This is a schematic diagram of the sealing cup in the sealing assembly.

[0030] In the diagram: 1-base, 2-support component, 3-top, 4-support column, 5-cover plate, 6-guide rod, 7-screw, 8-bolt, 9-positioning pin, 10-screw, 11-pin, 12-handle, 13-sealing assembly, 1301-sealing bushing, 130101-working plane, 130102-non-working plane, 130103-positioning hole, 130104-first card interface, 1302-sealing cup, 130201-washer, 130202-rubber, 130203-frame. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. These embodiments are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Reference Figures 3-5 The sealing assembly 13 includes a sealing bushing 1301 and a sealing cup 1302. The sealing cup is nested in the inner cavity of the sealing bushing. The sealing cup 1302 includes a washer 130201, rubber 130202, and a skeleton 130203. The center of the large end face of the sealing bushing is an annular working plane 130103, and the edge of the large end face is a non-working plane 130104. The working plane protrudes outward along the axial direction relative to the non-working plane. Several positioning holes 130103 are provided circumferentially on the working plane. The positioning holes 130101 are aligned with the end face of the washer 130201 in the sealing cup. The edge of the large end of the sealing bushing has multiple outward-facing first locking interfaces 130104.

[0033] To ensure that the working plane at the end of the sealing bushing is not damaged during the disassembly of the sealing assembly, this embodiment provides a disassembly device for the sealing assembly, see [link to device]. Figure 1 and Figure 2The disassembly device includes a base 1, a support member 2, a support assembly, a positioning pin 9, and a force-applying assembly. The support assembly includes support columns 4 and a cover plate 5. Two support columns 4 are vertically and symmetrically fixed at both ends of the top surface of the base 1. The cover plate 5 is fixed to the top of the support columns 4 by bolts 8, and the center of the cover plate 5 has a guide hole for the force-applying assembly to move up and down. The guide hole in the center of the cover plate 5 is a screw hole. The upper end of the force-applying assembly is used to apply power to move the force-applying assembly up and down. The lower end of the force-applying assembly has a vertically downward-facing abutment 3, which abuts against the outer circular stepped surface of the sealing bushing. The support member 2 is coaxially fixed to the middle of the top surface of the base 1 to support the sealing assembly 13. The middle of the support member 2 has an annular protrusion that can fit against the non-working surface 130102 of the sealing bushing 1301, preventing damage to the working surface 130101 of the sealing bushing during disassembly. Specifically, the axial dimension of the annular protrusion is not less than the distance between the working plane and the non-working plane on the large end of the sealing bushing, so that when the top 3 end face contacts the end face of the annular protrusion, the working plane of the sealing bushing can be suspended in the annular protrusion of the support and not in contact with the top surface of the support.

[0034] Several positioning pins 9 are vertically fixed circumferentially at the center of the top surface of the support member 2 and located inside the annular protrusion. The positioning pins 9 correspond to the positioning holes on the working plane of the sealing bushing 1301. The positioning pins 9 are used to push the sealing cup 1302 upward when the top of the force-applying component 3 pushes downward against the outer circular stepped surface of the sealing bushing, so that the sealing bushing 1301 is separated from the sealing cup 1302. In order to ensure that the sealing cup 1302 can be reliably separated from the sealing bushing 1301, the length of the positioning pin is not less than the thickness of the sealing bushing.

[0035] Specifically, the base 1 is rectangular and made of cast iron. The support 2 and the top abutment 3 are custom-shaped according to the part profiles of the sealing assembly. The support 2 is fixed to the middle of the base 1 by multiple screws 10.

[0036] It also includes guide rods 6, two of which are vertically and symmetrically fixed to the top surface of the support member 2, and the guide rods 6 are located outside the annular protrusion on the support member 2. The top of the force-applying component can slide up and down along the guide rods 6, and the first locking interface at the large end edge of the sealing bushing 1301 can be radially locked onto the outer wall of the guide rod 6. The first locking interface at the large end edge of the sealing bushing 1301 can be radially locked onto the outer wall of the guide rod, thus fixing the sealing component.

[0037] The force-applying assembly includes a screw 7 and a handle 12 connected to the abutment 3. The upper end of the screw 7 is vertically fixed to the middle of the handle 12 by welding. The body of the screw 7 is connected to the screw hole in the center of the cover plate 5. The lower end of the screw 7 is coaxially fixed to the abutment 3. Specifically, the abutment 3 includes a column and a connecting plate coaxially connected. The upper end of the column has a countersunk hole along the axis. The lower end of the screw 7 has a light axis that is inserted into the countersunk hole. The light axis of the screw and the column of the abutment are radially fixed by a pin 11.

[0038] The lower end face of the connecting plate at the top 3 is vertically symmetrically provided with two concave inward arc-shaped structures. The two arc-shaped structures form a space that encloses the outer circle of the sealing bushing. The inner wall of the arc-shaped structure matches the outer circle of the sealing bushing, thereby clamping and fixing the sealing bushing and ensuring that the position of the sealing bushing will not change during the disassembly process, thus ensuring the reliability of the disassembly. Furthermore, the end face of the arc-shaped structure can abut against the outer circular step surface of the sealing bushing.

[0039] The top of the connecting plate 3 has two symmetrically arranged second locking interfaces at both ends. The top of the guide rod 6 passes through the second locking interface with a clearance fit, allowing the top to slide up and down along the guide rod. Specifically, the second locking interface is a U-shaped hole with the opening facing outward.

[0040] The base 1 provides support, clamping, and protection for the sealing assembly through the support member 2, positioning pin 9, and abutment 3, preventing damage to parts or injury to operators caused by unstable clamping leading to the sealing assembly falling off. The handle 12 drives the screw 7 to rotate, and through the central threaded pair of the cover plate 5, it drives the abutment 3 to move downwards evenly along the guide rod 6, applying a downward axial force to the sealing bushing 1301. At this time, the sealing cup 1302, under the action of the upward axial force of the positioning pin 9, causes the sealing cup to separate from the sealing bushing.

[0041] The process of disassembling the sealing component using this invention is as follows:

[0042] Before disassembly, the working plane 130101 of the sealing bushing in the sealing assembly 13 is facing down, so that the 8 positioning holes on the working plane of the sealing bushing are aligned and pass through the positioning pin 9. At this time, the lower end face of the sealing cup rests against the upper end face of the positioning pin 9.

[0043] Rotating the handle 12 clockwise causes the screw 7 to rotate and drive downward through the threaded joint of the central screw hole of the cover plate 5. At the same time, it drives the top abutment 3 to slide downward evenly along the guide rod 6. When the lower end face of the arc-shaped structure on the top abutment 3 contacts the outer circular stepped surface of the sealing bushing, continue rotating the handle 12 to apply axial force to the sealing bushing 1301. During the downward movement of the sealing bushing, the sealing cup 1302 will be subjected to the upward force of the positioning pin 9, causing relative displacement between the sealing cup and the sealing bushing. This continues until the non-working plane of the large end of the sealing bushing contacts the annular protrusion end face in the middle of the support 2. At this point, the sealing cup 1302 is completely separated from the sealing bushing 1301, and the sealing assembly is finally disassembled.

[0044] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A disassembly device for a sealing assembly, the sealing assembly comprising a sealing bushing and a sealing cup, the sealing cup being fitted into the inner hole of the sealing bushing; the sealing bushing having a central annular working plane at its large end face and a non-working plane at its edge, the working plane protruding axially outward relative to the non-working plane; a plurality of circumferential positioning holes provided on the working plane, the positioning holes being aligned with the end face of the sealing cup; and the edge of the large end of the sealing bushing having a plurality of outwardly opening first locking interfaces; characterized in that... The disassembly device includes a base, a support member, a support assembly, a positioning pin, and a force application assembly; The support assembly includes a cover plate and two support columns; the two support columns are vertically and symmetrically fixed at both ends of the top surface of the base, and the cover plate is fixed at the top of the support columns; the cover plate has a guide hole in the center to allow the force-applying assembly to move up and down; The upper end of the force-applying component is used to apply power to make the force-applying component move up and down, and the lower end of the force-applying component has a vertically downward-positioned abutment, which is used to abut the outer circular stepped surface of the sealing bushing. The support member is coaxially fixed to the middle of the top surface of the base, and the middle of the support member has an annular protrusion. The annular protrusion can fit with the non-working plane of the sealing bushing, so that the working plane is located inside the annular protrusion and does not contact the top surface of the support member. Several positioning pins are circumferentially and vertically fixed in the middle of the top surface of the support member and located inside the annular protrusion. The positioning pins correspond to the positioning holes on the working plane of the sealing bushing. The positioning pins are used to push the sealing cup upward when the top of the force application component pushes downward against the outer circular step surface of the sealing bushing, so that the sealing cup is separated from the sealing bushing.

2. The disassembly device for a sealing assembly according to claim 1, characterized in that, It also includes guide rods, two of which are vertically and symmetrically fixed to the top surface of the support member, and the guide rods are located outside the annular protrusion of the support member; The top of the force-applying component can slide up and down along the guide rod, and the first snap-fit ​​interface at the large end edge of the sealing bushing can be radially snapped onto the outer wall of the guide rod.

3. The disassembly device for a sealing assembly according to claim 2, characterized in that, The force-applying component includes a screw and a handle connected to the abutment; The guide hole at the center of the cover plate is a screw hole; The upper end of the screw is vertically fixed to the middle of the handle, and the screw body is connected to the screw hole. The lower end of the screw is fixed coaxially with the top abutment; The lower end face of the top is vertically symmetrically provided with two concave inward arc-shaped structures. The two arc-shaped structures form a space that encloses the outer circle of the sealing bushing, and the end face of the arc-shaped structure can abut against the outer circle step surface of the sealing bushing.

4. The disassembly device for a sealing assembly according to claim 3, characterized in that, The top abutment includes a column and a connecting plate connected coaxially; the upper end of the column is provided with a countersunk hole along the axis, and the lower end of the screw of the force application component has an optical axis that is inserted into the countersunk hole, and the optical axis is radially fixed to the column; The arc-shaped structure is perpendicularly connected to the lower end face of the connecting plate.

5. The disassembly device for a sealing assembly according to claim 4, characterized in that, The connecting plate has two symmetrically arranged second card interfaces at both ends, and the top end of the guide rod passes through the second card interface with a clearance fit.

6. The disassembly apparatus for a sealing assembly according to claim 5, characterized in that, The second card interface is a U-shaped hole with the opening facing outwards.

7. The disassembly apparatus for a sealing assembly according to claim 6, characterized in that, The upper end of the screw is fixedly connected to the handle by welding.

8. The disassembly apparatus for a sealing assembly according to claim 1 or 7, characterized in that, The length of the positioning pin is not less than the thickness of the sealing bushing.

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