CN109318174B - Disassembling jig and disassembling method - Google Patents
Disassembling jig and disassembling method Download PDFInfo
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- CN109318174B CN109318174B CN201811494010.XA CN201811494010A CN109318174B CN 109318174 B CN109318174 B CN 109318174B CN 201811494010 A CN201811494010 A CN 201811494010A CN 109318174 B CN109318174 B CN 109318174B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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Abstract
The invention discloses a decomposition clamp, which is used for taking out a target part in a narrow installation area, extruding an elastic part through a force application part to enable the elastic part to clamp the target part, so that the decomposition clamp and the target part are connected into a whole, and taking out the decomposition clamp and the target part from the installation area through external force acting on the force application part. Then, the pressing force of the force applying member on the elastic member is released, so that the elastic member releases the target part, thereby removing the target part. The disassembly clamp can quickly take out the target part from a narrow installation area, and in addition, the elastic piece applies force to the target part, so that the target part is not damaged; and no acting force is applied to other parts in the target part mounting area in the operation process, so that other parts in the target part mounting area cannot be damaged, and the operation process is safer and more reliable. The invention also provides a disassembling method for taking out the target part from the mounting area by using the disassembling clamp.
Description
Technical Field
The invention relates to the field of assembly and disassembly of aero-engines, in particular to a disassembly clamp. The invention also provides a disassembling method for taking out the target part in the narrow installation area by using the disassembling clamp.
Background
The fuel valve assembly of the aviation gas turbine shaft engine is an important component of an engine fuel system, the assembly position of a part sealing joint of the fuel valve assembly is completely positioned in a deep hole of a shell, and a sealing ring is arranged on the sealing joint and elastically attached to the inner wall of the deep hole to achieve a good sealing effect. The functionality and the assembly position of the sealing joint determine that the sealing joint cannot be easily taken out of the assembled assembly without damaging parts, so that the decomposition difficulty and the risk of part damage in the decomposition process are increased.
Because the hole depth is small, the operation space is very limited, the size of the operable part of the target part gradually decreases, no step surface convenient for force application exists, the conventional puller cannot design and manufacture the function, the gripper is used for clamping by tweezers, time and labor are wasted, and the part is easy to damage.
Disclosure of Invention
The invention provides a disassembling clamp and a disassembling method, which aim to solve the technical problems that a target part in a narrow installation area is easy to damage and time is wasted when the target part is disassembled.
The technical scheme adopted by the invention is as follows:
a disassembling jig for taking out a target part located in a narrow mounting area,
the disassembling fixture and the target part are integrated, and the disassembling fixture and the target part are taken out from the installation area together through external force acting on the force application piece.
Further, the guide includes: the guide sleeve comprises a small-caliber guide sleeve and a large-caliber guide sleeve, the small-caliber guide sleeve is used for guiding a guide piece to enter a target part installation area, the large-caliber guide sleeve is used for providing an operation position, a first inner hole is formed in one end, away from the large-caliber guide sleeve, of the small-caliber guide sleeve, the aperture of the first inner hole is matched with the outer diameter of a stressed portion of the target part, and the stressed portion of the target part is in small clearance fit with the first inner hole.
Furthermore, a second inner hole is formed in one end, connected with the large-caliber guide sleeve, of the small-caliber guide sleeve, the aperture of the second inner hole is larger than that of the first inner hole, and a step is formed at the joint of the first inner hole and the second inner hole; the elastic piece is positioned on the step and used for clamping the stressed part of the target part when being extruded by the force application piece.
Further, the force application member includes: the guide rod is used for guiding the force application part to enter the guide sleeve, the guide rod is in clearance fit with the second inner hole, a third inner hole used for providing an avoidance space for a stressed part of the target part when the guide rod extrudes the elastic part is arranged at the bottom end of the guide rod, and the stressed part of the target part is in small clearance fit with the third inner hole; the guide rod is provided with a connecting part used for being connected with the guide sleeve, and the connecting part drives the guide rod to extrude the elastic part so as to clamp a stress part of the target part.
Furthermore, the connecting part is an external thread arranged at the top end of the guide rod, and the external thread is matched with an internal thread arranged on the inner circumferential surface of the large-diameter guide sleeve so as to connect the guide piece and the force application piece and realize the centering of the decomposition clamp.
Furthermore, the connecting portion are elastic clamping pieces arranged on the guide rod, and the elastic clamping pieces are clamped with grooves formed in the inner circumferential surface of the large-diameter guide sleeve, so that the guide pieces are connected with the force application pieces, and the centering of the decomposition clamp is realized.
Furthermore, the top of the guide rod is also provided with a force application part for operating the movement of the connecting part, and the force application part is provided with an operation part for balancing applied external force and taking the decomposition clamp out of the installation area of the target part.
Furthermore, the elastic part comprises a first rubber ring and a second rubber ring which are arranged on the step, a bushing is arranged between the first rubber ring and the second rubber ring, and the aperture of the first rubber ring and the aperture of the second rubber ring are both larger than the outer diameter of the stressed part of the target part.
Furthermore, the outside of the large-caliber guide sleeve is provided with an anti-skid reticulate pattern.
According to another aspect of the present invention, there is also provided a disassembly method for taking out a target part located in a narrow mounting area by using the disassembly jig described above, the disassembly method including the steps of:
the guide piece enters the installation area of the target part and is in clearance fit with the stressed part of the target part;
the stress part of the target part penetrates through the first inner hole and the elastic piece to extend into the second inner hole;
the force application part extrudes the elastic part, the stress part of the target part enters a third inner hole positioned at the bottom of the guide rod, and meanwhile, the elastic part clamps the stress part of the target part, so that the decomposition clamp and the target part are connected into a whole, and the decomposition clamp and the target part are taken out of the installation area of the target part through the external force acting on the force application part;
and releasing the extrusion force of the force application member on the elastic member, so that the elastic member releases the stress part of the target part to take down the target part.
The invention has the following beneficial effects:
the present invention provides a disassembly jig for taking out a target part located in a narrow mounting area, the disassembly jig including: the device comprises a guide part and a force application part, wherein the guide part is used for entering a mounting area of a target part and is in clearance fit with the mounting area, the force application part is connected with the guide part and is used for taking the target part out of the mounting area, the guide part is provided with an elastic part, and the force application part extrudes the elastic part when moving so that the elastic part clamps a stressed part of the target part. The disassembling clamp and the target part are taken out from the mounting area through the external force acting on the force applying piece. Then, the pressing force of the force applying member on the elastic member is released, so that the elastic member releases the target part, thereby removing the target part. The disassembly clamp can quickly take out the target part from a narrow installation area, and in addition, the elastic piece applies force to the target part, so that the target part is not damaged; and no acting force is applied to other parts in the target part mounting area in the operation process, so that other parts in the target part mounting area cannot be damaged, and the operation process is safer and more reliable.
According to another aspect of the invention, the invention also provides a disassembling method for taking out the target part from the mounting area by using the disassembling clamp, which can quickly take out the target part from the mounting area, and simultaneously avoids the risk of part damage, so that the operation process is safer and more reliable. In addition, the method can be applied to the decomposition of parts with small tightness in a narrow installation area, and has high popularization performance.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an exploded fixture according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the structure of a guide according to a preferred embodiment of the present invention;
fig. 3 is a schematic structural view of a force application member according to a preferred embodiment of the present invention.
The reference numbers illustrate:
10. a guide; 11. a small-caliber guide sleeve; 12. a large-caliber guide sleeve; 20. a force application member; 21. a guide bar; 22. a connecting portion; 23. a force application part; 30. an elastic member; 31. a bushing; 40. an operation unit.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, a preferred embodiment of the present invention provides a disassembling jig for taking out a target part located in a narrow installation area, in this embodiment, the target part is a sealing joint located in a deep hole, the sealing joint is completely located in the deep hole, and by elastically fitting a sealing ring to an inner wall of the deep hole, the sealing joint is difficult to separate from the deep hole without damaging the part and other parts in the installation area of the sealing joint. The present invention provides a disassembly jig to solve the above problems. This decompose anchor clamps include: the disassembling jig comprises a guide part 10 which is used for entering into a mounting area of a target part and is in clearance fit with the target part, and a force application part 20 which is connected with the guide part 10 and is used for taking the target part out of the mounting area, wherein the guide part 10 is provided with an elastic part 30, the force application part 20 extrudes the elastic part 30 when moving so that the elastic part 30 clamps a force-bearing part of the target part, thereby connecting the disassembling jig and the target part into a whole, the disassembling jig and the target part are taken out from the mounting area together by external force acting on the force application part 20, then the extrusion force of the force application part 20 on the elastic part 30 is released, and the elastic part 30 loosens the target part so that the target part.
In this embodiment, the guide 10 guides the decomposition jig into the deep hole where the target part is located, and is in small clearance fit with the stressed portion located on the target part, the force applying member 20 extrudes the elastic member 30, the elastic member 30 expands under force, so that the contact surface between the elastic member 30 and the stressed portion of the target part generates contact pressure, thereby clamping the stressed portion, further generating static friction force and balancing the static friction force with the self-gravity of the target part, and the target part and the decomposition jig are connected into a whole. The decomposition jig and the target part are then taken out from the mounting region of the target part by an external force acting on the urging member 20. Then, the pressing force of the biasing member 20 on the elastic member 30 is released, and the elastic member 30 releases the target part to remove the target part.
In the disassembly jig of the embodiment, the elastic member 30 acts on the target part through the force application member 20, so that the disassembly jig and the target part are connected into a whole, and then the target part in the narrow installation area can be taken out through the external force acting on the force application member 20; in addition, the target part is not damaged by the force applied to the target part by the elastic piece 30; and no action force is exerted on other parts in the target part mounting area in the operation process, so that other parts in the target part mounting area cannot be damaged. The disassembling clamp can quickly take out the target part from a narrow installation area, and meanwhile, the risk of part damage is avoided, so that the operation process is safer and more reliable.
Referring to fig. 2 and 3, the guide 10 includes: the guide sleeve is provided with openings at two ends and comprises a small-caliber guide sleeve 11 used for guiding the guide piece 10 to enter the target part installation area and a large-caliber guide sleeve 12 connected with the small-caliber guide sleeve 11. One end of the small-caliber guide sleeve 11, which is far away from the large-caliber guide sleeve 12, is provided with a first inner hole, and the aperture of the first inner hole is matched with the outer diameter of the stressed part of the target part. The stress part of the target part is in small clearance fit with the first inner hole.
In this embodiment, the target component is a sealing joint, and the force-receiving portion is a ram located on the sealing joint. The first inner hole is in small clearance fit with the ejector rod and used for connecting the sealing joint with the guide sleeve.
Preferably, a second inner hole is formed at one end of the small-caliber guide sleeve 11 connected with the large-caliber guide sleeve, the aperture of the second inner hole is larger than that of the first inner hole, and a step is formed at the joint of the first inner hole and the second inner hole. In this embodiment, the elastic member 30 is a rubber ring, and the rubber ring is placed on the step, so that the rubber ring does not fall off. The aperture of the rubber ring is larger than the outer diameter of the ejector rod. In the operation process, the ejector rod of the sealing joint passes through the first inner hole and the rubber ring, and the rubber ring clamps the ejector rod when being extruded by the force application part 20.
Referring to fig. 3, the force applying member 20 includes: and a guide rod 21 for guiding the force application part 20 into the guide sleeve, wherein the guide rod 21 is in clearance fit with the second inner hole. The bottom end of the guide rod 21 is provided with a third inner hole for providing an avoiding space for the stressed part of the target part when the guide rod 21 extrudes the elastic part 30. The stress part of the target part is in small clearance fit with the third inner hole. The guide rod 21 is provided with a connecting part 22 for connecting with the guide sleeve, and the connecting part 22 presses the elastic part 30 to clamp the stressed part of the target part when driving the guide rod 21 to move.
In this embodiment, the aperture of the third bore is closely clearance fit with the ram. In the initial state, when the guide 10 enters the installation area of the target part, the stress part of the target part passes through the first inner hole and the rubber ring and extends into the second inner hole. When the connecting part 22 drives the guide rod 21 to extrude the rubber ring, the stressed part of the target part enters the third inner hole, and the rubber ring can only expand towards the center direction of the inner hole due to the limitation of space, so that the rubber ring clamps the stressed part of the target part, and the target part and the decomposition clamp are connected into a whole.
In other embodiments, in the initial state, the ejector rod of the sealing joint penetrates through the first inner hole and the rubber ring to extend into the second inner hole and then extend into the third inner hole, so that the axial positioning of the sealing joint and the disassembling clamp is realized. The connecting part 22 extrudes the rubber ring when driving the guide rod 21 to move, and the rubber ring can only expand towards the center direction of the inner hole due to the limitation of space, so that the ejector rod is clamped, and the sealing joint and the disassembling clamp are connected into a whole.
Preferably, the connecting portion 22 is an external thread provided at the top end of the guide rod 21, and the external thread is matched with an internal thread provided on the inner circumferential surface of the end portion of the large-diameter guide sleeve 12, so as to connect the guide member 10 and the force application member 20, on one hand, to realize the centering of the decomposition fixture, and on the other hand, to connect the guide member 10 and the force application member 20 into a whole, thereby facilitating the storage and retrieval. The top of the guide bar 21 is further provided with a force application portion 23 for operating the guide bar 21, and the target part and the disassembly jig are taken out from the mounting area by an external force acting on the force application portion 23. In this embodiment, the operation process is that the guide rod 21 is screwed down to move downward, the guide rod 21 extrudes the rubber ring, and the rubber ring expands toward the center of the inner hole due to the limitation of space, so as to clamp the ejector rod, connect the disassembling jig and the sealing joint into a whole, and take out the disassembling jig together with the sealing joint by the external force acting on the force application member 20. Then the acting force of the force applying part 20 on the rubber ring is released, so that the rubber ring loosens the ejector rod, and the sealing joint is taken down.
In other embodiments, the connecting portion 22 is an elastic clamping member disposed on the guide rod 21, and the inner circumferential surface of the end portion of the large-diameter guide sleeve 12 is provided with a groove matched with the elastic clamping member. The guide rod 21 enters the second inner hole through the large-caliber guide sleeve 12, and the elastic clamping piece is in a compressed state. The guide rod 21 further compresses the rubber ring, the elastic clamping piece enters the groove, and the elastic clamping piece is loosened, so that the guide rod 21 and the guide sleeve are connected into a whole, and the pressure for compressing the rubber ring is kept. At the moment, the rubber ring is in a compressed state and expands towards the center of the inner hole, so that the ejector rod is clamped, and the disassembling clamp and the sealing joint are connected into a whole. The disassembly jig is taken out together with the sealing joint by external force acting on the force application member 20, and then the acting force of the force application member 20 on the rubber ring is released, so that the rubber ring loosens the ejector rod and the sealing joint is taken down.
Preferably, the urging portion 23 is provided with an operation portion 40 for taking out the decomposition jig from the target component mounting region while balancing the applied external force. In the present embodiment, the operating portion 40 is a cylindrical pin penetrating the force application portion 23, which facilitates, on the one hand, balancing the application of upward pulling force and, on the other hand, operating the force application member 20 to tighten or loosen the guide rod 21.
Preferably, the elastic member 30 includes a first rubber ring and a second rubber ring disposed on the step, a bushing 31 is disposed between the first rubber ring and the second rubber ring, and the apertures of the first rubber ring and the second rubber ring are both greater than the outer diameter of the stressed portion, so that the stressed portion of the target part can pass through the first rubber ring and the second rubber ring.
In the embodiment, the first rubber ring and the second rubber ring are separately arranged, so that on one hand, the static friction force borne by the target part is increased; on the other hand, the friction force on the target part is uniform, and the target part is convenient to take out. The aperture of first rubber ring and second rubber ring all is greater than the external diameter of the atress portion of target part to make the atress portion of target part pass first rubber ring and second rubber ring easily, can understand ground, the aperture of first rubber ring and second rubber ring should not be too big, prevents to make first rubber ring and second rubber ring unable clamp object part when receiving the extrusion force because of the clearance between first rubber ring and second rubber ring and the object part atress portion is too big.
Preferably, the radial clearance between the first rubber ring and the stress part of the target part and the radial clearance between the second rubber ring and the stress part of the target part are 0.05 mm-0.2 mm.
Preferably, the outside of the large-caliber guide sleeve 12 is provided with a reticulation for skid resistance. In this embodiment, the outer portion of the guide sleeve is tapered to facilitate entering a narrow installation area for cooperating with a target part. In other embodiments, the exterior of the guide sleeve is stepped or otherwise shaped to facilitate access to the target part mounting area.
The decomposition clamp comprises the following steps: firstly, unscrewing the guide rod 21 to enable the first rubber ring and the second rubber ring to be in a natural state; and then, the bottom end of the guide sleeve extends into a deep hole for mounting a target part, and the stress part on the target part penetrates through the first inner hole of the guide sleeve and sequentially penetrates through the first rubber ring and the second rubber ring. The guide rod 21 is screwed down, the guide rod 21 moves downwards to extrude the first rubber ring and the second rubber ring, the stress part of the target part enters the third inner hole at the bottom end of the guide rod 21, and the first rubber ring and the second rubber ring clamp the stress part of the target part under the action of elastic deformation, so that the target part and the decomposition clamp are connected into a whole. Then, the two ends of the cylindrical pin are manually tightened, and the whole disassembly jig and the target part are taken out from the installation area. Finally, the guide rod 21 is unscrewed to release the extrusion force of the guide rod 21 on the first rubber ring and the second rubber ring, so that the target part is loosened by the first rubber ring and the second rubber ring, and the target part is taken down.
According to another aspect of the present invention, the present invention also provides a disassembly method for taking out a target part from a mounting area using the disassembly jig described above, the method comprising the steps of:
firstly, the guide piece 10 enters a target part mounting area and is in clearance fit with a stressed part of a target part; the stressed part of the target part passes through the first inner hole and the elastic piece 30; the force application member 20 extrudes the elastic member 30, the stress part of the target part enters the third inner hole, meanwhile, the elastic member 30 clamps the stress part of the target part, the decomposition clamp and the target part are connected into a whole, and the decomposition clamp and the target part are taken out of the installation area of the target part through the external force acting on the force application member 20; the pressing force of the biasing member 20 on the elastic member 30 is released, so that the elastic member 30 releases the force receiving portion of the target part to remove the target part.
In this embodiment, the decomposition method includes: in the initial state, the first rubber ring and the second rubber ring are in a natural state;
firstly, the bottom end of a guide sleeve extends into a deep hole for installing a sealing joint (target part), so that an ejector rod (stressed part) of the sealing joint penetrates through a first inner hole of the guide sleeve and sequentially penetrates through a first rubber ring and a second rubber ring;
screwing the guide rod 21 and extruding the first rubber ring and the second rubber ring, enabling the ejector rod to enter a third inner hole, and simultaneously clamping the ejector rod by the first rubber ring and the second rubber ring under the action of elastic deformation to enable the decomposition clamp and the sealing joint to be connected into a whole;
taking out the whole decomposition clamp together with the sealing joint through two ends of the portable cylindrical pin;
and unscrewing the guide rod 21, and relieving the extrusion force of the guide rod 21 on the first rubber ring and the second rubber ring to enable the first rubber ring and the second rubber ring to loosen the ejector rod so as to take down the sealing joint.
In other embodiments, the decomposition method comprises the steps of:
firstly, the bottom end of a guide sleeve extends into a deep hole for installing a sealing joint (target part), so that an ejector rod (stressed part) of the sealing joint penetrates through a first inner hole, a first rubber ring and a second rubber ring and then enters a third inner hole positioned at the bottom end of a guide rod 21, and the axial positioning of the sealing joint and a decomposition clamp is realized;
screwing the guide rod 21 and extruding the first rubber ring and the second rubber ring, wherein the first rubber ring and the second rubber ring clamp the ejector rod of the target part under the action of elastic deformation, so that the decomposition clamp and the sealing joint are connected into a whole;
taking out the whole decomposition clamp together with the sealing joint through two ends of the portable cylindrical pin;
and unscrewing the guide rod 21, and relieving the extrusion force of the guide rod 21 on the first rubber ring and the second rubber ring to enable the first rubber ring and the second rubber ring to loosen the ejector rod so as to take down the sealing joint.
The disassembly method of the embodiment can quickly take out the sealing joint from the installation area, and meanwhile, reduces the risk of part damage, so that the operation process is safer and more reliable. In addition, the decomposition method of the sealing joint in the deep hole skillfully applies the basic characteristics of a common rubber ring and the centering action of the thread matching of the guide sleeve and the guide rod, simplifies the operation process, ensures that the decomposition operation is safer and more reliable, and reduces the damage risk of parts.
The disassembling method is a novel target part disassembling method, and in the whole operation process, the target part in a narrow installation area can be taken out only by simply unscrewing and screwing the guide rod. The elastic piece applies force to avoid damage to the target part; and in the use process, the disassembling clamp hardly applies acting force to other parts in the mounting area to assist the acting force, so that the disassembling clamp is not damaged, and the operation process is safe and reliable. The method can be applied to the decomposition of parts with small tightness in a small space of a deep hole, can be widely applied to the field of aircraft engine assembly and the mechanical manufacturing industry, and has high popularization performance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A disassembling jig for taking out a target part located in a narrow mounting area,
the disassembly clamp comprises a guide part (10) which is used for entering a target part installation area and is in clearance fit with the target part, and a force application part (20) which is connected with the guide part (10) and is used for taking out the target part from the installation area, wherein an elastic part (30) is arranged on the guide part (10), the force application part (20) extrudes the elastic part (30) to enable the elastic part (30) to clamp the target part, so that the disassembly clamp and the target part are integrated, and the disassembly clamp and the target part are taken out from the installation area together through external force acting on the force application part (20);
the guide (10) comprises: the guide sleeve is provided with openings at two ends, the guide sleeve comprises a small-caliber guide sleeve (11) used for guiding the guide piece (10) to enter the target part installation area and a large-caliber guide sleeve (12) used for providing an operation part, one end, far away from the large-caliber guide sleeve (12), of the small-caliber guide sleeve (11) is provided with a first inner hole, the aperture of the first inner hole is matched with the outer diameter of a stressed part of the target part, and the stressed part of the target part is in small clearance fit with the first inner hole; a second inner hole is formed in one end, connected with the large-caliber guide sleeve (12), of the small-caliber guide sleeve (11), the aperture of the second inner hole is larger than that of the first inner hole, and a step is formed at the connection position of the first inner hole and the second inner hole;
the force application member (20) includes: the guide rod (21) is used for guiding the force application part (20) to enter the guide sleeve, the guide rod (21) is in clearance fit with the second inner hole, a third inner hole used for providing an avoidance space for a stressed part of the target part when the guide rod (21) extrudes the elastic part (30) is arranged at the bottom end of the guide rod (21), and the stressed part of the target part is in small clearance fit with the third inner hole; the guide rod (21) is provided with a connecting part (22) used for being connected with the guide sleeve, and the connecting part (22) drives the guide rod (21) to extrude the elastic part (30) to clamp a stress part of the target part; the connecting part (22) is an external thread arranged at the top end of the guide rod (21), and the external thread is matched with an internal thread arranged on the inner circumferential surface of the large-caliber guide sleeve (12) so as to connect the guide part (10) and the force application part (20) and realize the centering of the decomposition clamp; the top of the guide rod (21) is also provided with a force application part (23) for operating the connection part (22) to move, and the outside of the large-caliber guide sleeve (12) is provided with an anti-skid net pattern;
the elastic piece (30) is positioned on the step and is used for clamping a stressed part of the target part when being pressed by the force application piece (20); the elastic part (30) comprises a first rubber ring and a second rubber ring which are arranged on the step, a bushing (31) is arranged between the first rubber ring and the second rubber ring, and the aperture of the first rubber ring and the aperture of the second rubber ring are both larger than the outer diameter of the stressed part of the target part.
2. The disassembly jig of claim 1,
the force application part (23) is provided with an operation part (40) for balancing an applied external force and taking out the decomposition jig from the mounting region of the target part.
3. A disassembly method for taking out a target part located in a narrow installation area by using the disassembly jig of any one of claims 1 or 2, comprising the steps of:
the guide piece (10) enters the installation area of the target part and is in clearance fit with the stressed part of the target part;
the stress part of the target part passes through the first inner hole and the elastic piece (30) and extends into the second inner hole;
the force application part (20) extrudes the elastic part (30), the stressed part of the target part enters a third inner hole positioned at the bottom of the guide rod (21), meanwhile, the elastic part (30) clamps the stressed part of the target part, so that the decomposition clamp and the target part are connected into a whole, and the decomposition clamp and the target part are taken out from the installation area of the target part through the external force acting on the force application part (20);
and releasing the extrusion force of the force application member (20) on the elastic member (30), so that the elastic member (30) releases the stressed part of the target part to take down the target part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811494010.XA CN109318174B (en) | 2018-12-07 | 2018-12-07 | Disassembling jig and disassembling method |
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| CN201811494010.XA CN109318174B (en) | 2018-12-07 | 2018-12-07 | Disassembling jig and disassembling method |
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| CN109318174A CN109318174A (en) | 2019-02-12 |
| CN109318174B true CN109318174B (en) | 2020-12-01 |
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| CN110340413A (en) * | 2019-06-11 | 2019-10-18 | 昌河飞机工业（集团）有限责任公司 | A kind of process for the dividing bush decomposing large aperture interference fit |
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| DE2511546A1 (en) * | 1975-03-17 | 1976-09-30 | Reinhard Kissler Anlagenbau El | Hollow-shaft electric motor removal tool - has spindle with expanding portion locked inside shaft |
| CN201199202Y (en) * | 2008-04-28 | 2009-02-25 | 山东建筑大学 | Non-perturbation pole-shaped sediment sampler |
| CN201524996U (en) * | 2009-11-16 | 2010-07-14 | 东风汽车股份有限公司 | Special pin pulling assistive device for positioning blind pin |
| CN102357863A (en) * | 2011-09-30 | 2012-02-22 | 西安航空动力控制有限责任公司 | Sleeve-pulling tool |
| CN204321980U (en) * | 2014-11-07 | 2015-05-13 | 上海锅炉厂有限公司 | A kind of heat exchanger tube pipe drawing device |
| CN104676013A (en) * | 2015-02-15 | 2015-06-03 | 德科隆（无锡）流体控制有限公司 | Online quickly-repaired power station stop valve and replacement method for valve seat of stop valve |
| CN205519738U (en) * | 2016-01-20 | 2016-08-31 | 昆明理工大学 | Expanding line -up clamp in rubber |
| CN206663118U (en) * | 2017-05-04 | 2017-11-24 | 山东胜利职业学院 | Wellbore pump piston replacer |
-
2018
- 2018-12-07 CN CN201811494010.XA patent/CN109318174B/en active Active
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