CN211102551U - Operation tool for precisely installing hole inner bushing - Google Patents
Operation tool for precisely installing hole inner bushing Download PDFInfo
- Publication number
- CN211102551U CN211102551U CN201922063980.0U CN201922063980U CN211102551U CN 211102551 U CN211102551 U CN 211102551U CN 201922063980 U CN201922063980 U CN 201922063980U CN 211102551 U CN211102551 U CN 211102551U
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- hole
- bush
- axial
- pressure head
- base
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Abstract
The utility model discloses an downthehole bush precision installation is used as industry frock, the operation frock includes action bars and location base, the location base have can go on the part body the location face of fixing a position and can under the positioned state with the guiding hole that the bush mounting hole axial on the part body corresponds, the action bars stretches into with axial displaceable structure in the guiding hole of location base, just the action bars is in be connected with in the guiding hole can the axial displaceable and the pressure head of propelling movement bush. The utility model discloses fix a position, support with the bush of butt joint on the positioning base to the part body to can correspond the bush in the guide hole of positioning base carrying out axial displacement's action bars and pressure head and realize positive axial propelling movement, prevent that the bush from producing the slope when getting into the bush mounting hole, also can not cause the damage to the part body and bush, easy operation can make the bush light, high-efficient, high-quality accurate install in the corresponding bush mounting hole on the part body.
Description
Technical Field
The utility model relates to an operation instrument that the part equipment was used specifically is an operation frock that downthehole bush precision mounting used, the bush installation in the shaft fitting mounting hole on its suitable aeroengine machine casket very much.
Background
In the shaft mounting structure, in order to reduce wear caused by motion friction between the shaft and/or the housing, the shaft is usually assembled in a mounting hole of the housing with a bushing having a relatively low hardness and a relatively high wear resistance (for convenience of description, such a hole is hereinafter collectively referred to as "bushing mounting hole"), the bushing is in an interference fit in a bushing mounting hole of the housing, and the bushing is in a clearance fit with the shaft. By replacing the bushing, the cost associated with replacing the shaft and/or housing is saved when a certain degree of wear occurs between the shaft and housing during prolonged motion friction. It can be seen that the bushing is an important kit for sealing, wear protection, etc. of moving parts.
Within aircraft engines there are numerous, complex wheel train structures, which are among the typical moving parts. The axle member of the train wheel structure in the aircraft engine is usually mounted in a bush in a corresponding bush mounting hole in the casing as described above, for example, the axle member of an idler wheel in the aircraft engine is mounted in an idler wheel shaft mounting hole in the casing in a bush.
In the long-term operation process of an aircraft engine, a bushing assembled in a bushing mounting hole of a corresponding gear train structure on a casing fails due to abrasion, so that an original bushing in the corresponding bushing mounting hole on the casing needs to be disassembled, a new bushing is installed in the bushing mounting hole, even reaming operation of the corresponding bushing mounting hole on the casing can be involved, and installation of the corresponding bushing is inevitable after reaming.
Based on aeroengine's high accuracy, operations such as bush assembly in the bush mounting hole of the corresponding train structure on its quick-witted casket all belong to high-accuracy operation, and the installation needs of bush in the corresponding bush mounting hole on the quick-witted casket satisfy following two technical condition simultaneously:
1. the bushing installed in the corresponding bushing mounting hole on the casing needs to be perpendicular to the surface of the casing formed by the bushing mounting hole, namely the bushing needs to keep an accurate axial state in the corresponding bushing mounting hole;
2. the end surface of the bushing that is inserted into the corresponding bushing mounting hole on the casing must not be higher than the surface of the casing on which the bushing mounting hole is formed, i.e., the bushing is inserted into the corresponding bushing mounting hole in a flush or sunken manner (usually in a flush manner).
The two installation technical conditions directly influence the installation of the shaft part of the corresponding gear train structure on the box and the precision, the stability and the reliability of the subsequent movement.
At present, the installation of bush in the corresponding bush mounting hole on the aeroengine machine casket is because of lacking the special operation frock of effective ground of going, mainly installs with the traditional operation mode that the hammer strikes, and concrete operation process is: firstly, butting the bush at a corresponding bush mounting hole on the casing; then, a punch with a step structure is used for propping against the outer end face of the bushing; and then, knocking the tail end of the punch rod by using a hammer, and pushing the bush into a corresponding bush mounting hole on the casing.
It can be clearly seen from the above installation process that the installation thrust of the bushing in the corresponding bushing installation hole is due to the knocking of the hammer on the impact rod, the knocking force is determined by the subjective behavior of the operator, the bushing cannot be effectively installed in the bushing installation hole due to too small knocking force, the bushing installation hole extends outwards at the outer edge of the bushing installation hole, and the impact rod is easily damaged on the surface of the casing formed by the bushing installation hole due to too large knocking force, so that the whole installation process is difficult to operate and control. Furthermore, in the installation process of the bushing, the direction of knocking the hammer is not necessarily positive axial, so that the thrust borne by the bushing is not necessarily all axial, and radial thrust exists, so that the impact rod can damage the inner wall surface of the bushing, the bushing can incline in the installation process, the requirement on the installation technical condition cannot be met, the wall surface of a bushing installation hole in the casing can be damaged, and the adverse effect can be caused on the installation accuracy of the bushing.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is that: aiming at the particularity of the precise installation of the bush and the technical defects of the existing operation tool, the operation tool which can ensure that the bush is easily, efficiently and precisely installed in the corresponding bush installation hole on the part body in high quality is provided.
The technical purpose of the utility model is realized through the following technical scheme: the utility model provides an in-hole bush precision installation is as industry frock, the operation frock includes action bars and location base, the location base have can go on the part body the location face of fixing a position and can under the positioned state with the guiding hole that the bush mounting hole axial on the part body corresponds, the action bars stretches into with axial displaceable structure in the guiding hole of location base, just the action bars is in be connected with in the guiding hole can the axial displaceable and propelling movement bush's pressure head.
Preferably, the positioning base has a screw sleeve portion located axially outside the guide hole, and the operating rod extends into the guide hole through the screw sleeve portion in a screw-fit structure. Furthermore, a thrust conversion piece between the operating rod and the pressure head is arranged in a guide hole of the positioning base. Still further, the thrust conversion member is an antifriction washer or a thrust ball bearing. The axial of operating lever has handle portion and body portion, have on the body portion connect the screw thread structure of positioning base, handle portion is in positioning base's outside. Furthermore, the axial direction of the operating rod is also provided with a connecting neck and a limiting part which are positioned at the front end of the rod body part, the connecting neck is used for matching with the limiting part to sleeve the pressure head, and the limiting part is matched and connected with the pressure head in a threaded structure; the direction of the thread of the operating rod connected with the pressure head is opposite to the direction of the thread of the operating rod connected with the screw sleeve part; the axial of the pressure head is provided with a threaded hole section close to one side of the thrust conversion part and a limiting counter bore section close to one side of the pushing surface, and the inner diameter of the limiting counter bore section is larger than that of the threaded hole section.
Preferably, the positioning base is mainly composed of a guide cylinder, a screw sleeve portion and a base plate, the guide cylinder has a guide hole in an axial direction, the screw sleeve portion is located at one end of the guide cylinder in a radially inward folded structure, and the base plate is located at the other end of the guide cylinder in a radially outward folded structure. Furthermore, the base plate is provided with at least one kidney-shaped hole which can correspond to the positioning hole on the part body. The guide cylinder and the screw sleeve part are of a split combined structure. The guide cylinder and the base plate are of an integrally formed structure.
Preferably, the part body is a casing of an aircraft engine. Further, a bushing mounting hole on the part body is an idler shaft mounting hole.
The utility model has the beneficial technical effects that:
1. the utility model discloses fix a position, support the bush of butt joint on the part body with the positioning base, realize positive axial propelling movement with the action bars that can carry out axial displacement in the guiding hole of positioning base and pressure head correspond the bush, prevent that the bush from producing the slope when getting into the bush mounting hole, also can not cause the damage to the part body and bush, easy operation can make the bush light, high-efficient, high-quality precision install in the corresponding bush mounting hole on the part body;
2. the screw thread fit structure between the operating rod and the positioning base of the utility model ensures that the axial displacement process of the operating rod in the guide hole of the positioning base is stable and adjustable, and when the bush is pushed, the thrust borne by the bush is relatively balanced, thus being beneficial to protecting the part body and the bush;
3. the thrust conversion piece between the operating rod and the pressure head can reliably convert the axial displacement thrust of the circumferential rotation of the operating rod into the axial displacement thrust of the linear motion of the pressure head, so that when the bushing is pushed, the relative circumferential friction motion between the pressure head and the bushing is reduced to protect the bushing;
4. the connecting structure between the operating rod and the pressure head can effectively ensure the stability of the relative matching relationship between the operating rod and the pressure head, has the characteristics of easy and easy assembly and disassembly operation of the operating rod and the pressure head, can also realize high-precision assembly of the operating rod and the pressure head, cannot influence the pushing and installation of the bushing, and cannot damage the bushing;
5. the positioning base forming structure of the utility model is beneficial to stable and reliable installation and positioning on the part body, in particular to the waist-shaped hole structure on the base plate which is beneficial to flexibly adjusting the installation position of the positioning base on the part body, thereby effectively ensuring that the guide hole on the positioning base and the bushing installation hole on the part body can be reliably axially centered; in addition, the split combination structure between the screw sleeve part and the guide cylinder is beneficial to reducing the process difficulty in the processing and manufacturing of the positioning base.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view a-a of fig. 1.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is a reference diagram of the usage status of the present invention.
The reference numbers in the figures mean: 1-operating lever; 11-a handle portion; 12-a shank portion; 13-a force transfer section; 14-connecting neck; 15-a limiting part; 2, positioning a base; 21-a screw sleeve part; 22, a guide cylinder; 23-base plate; 24-a pilot hole; 25-kidney shaped hole; 26-pins; 3-a thrust converter; 4, pressing head; 41-a threaded hole section; 42-a limiting hole section; 5-part body; 51-a bushing mounting hole; 52-positioning holes; 6, positioning screws; 7-a bushing.
Detailed Description
The utility model relates to an operation instrument that part equipment was used, specifically is an operation frock that downthehole bush precision installation was used, below with the installation of the bush in the idler shaft mounting hole on the aeroengine casing as the object (the part body that is described below is the aeroengine casing, and the bush mounting hole is the idler shaft mounting hole on the aeroengine casing), it is right through a plurality of embodiments the utility model discloses a main part technical content carries out the detailed description, wherein, embodiment 1 combines the description attached drawing-promptly figure 1, figure 2, figure 3 and figure 4 are right the utility model discloses a main part technical content carries out clear, audio-visual detailed description, though other embodiments do not draw the corresponding attached drawing alone again, but its main part technical scheme still can refer to embodiment 1's attached drawing.
It is expressly stated here that the drawings of the present invention are schematic, and unnecessary details have been simplified for the purpose of clarity in order to avoid obscuring the technical solutions that contribute to the prior art.
Example 1
Referring to fig. 1, 2, 3 and 4, the present invention includes an operation rod 1 and a positioning base 2.
Wherein, the positioning base 2 mainly comprises a guide cylinder 22, a threaded sleeve part 21 and a base plate 23. The guide cylinder 22 is a cylindrical structure, and has a guide hole 24 with a through hole structure in the axial direction inside, the guide hole 24 is an axial equal-diameter structure, and the inner diameter of the guide hole 24 should be at least equal to the inner diameter (hole opening) of the bushing mounting hole 51 on the part body 5, and is usually slightly larger than the inner diameter of the bushing mounting hole 51 on the part body 5. When the positioning base 2 is positioned on the component body 5 (i.e., in a positioned state), the guide hole 24 of the guide cylinder 22 can axially correspond to the bush mounting hole 51 of the component body 5.
The screw sleeve portion 21 and the guide cylinder 22 are of a split combination structure. Specifically, the outer contour of the screw sleeve portion 21 is a coaxial step structure with a large upper part and a small lower part, the outer diameter of the upper part of the screw sleeve portion 21 is basically matched with the outer diameter of the guide cylinder 22, and the outer diameter of the lower part of the screw sleeve portion 21 is matched with the inner diameter of the guide hole 24 of the guide cylinder 22; the screw sleeve portion 21 is axially inserted into the upper end of the guide hole 24 of the guide cylinder 22 through the lower portion, thereby forming a radially inwardly folded structure at the upper end of the guide cylinder 22. In order to ensure the reliability and stability of the connection between the screw sleeve part 21 and the guide cylinder 22, a plurality of groups of pin holes which are in one-to-one correspondence are formed in the circumferential direction of the nesting area between the guide cylinder 22 and the screw sleeve part 21, a pin 26 is inserted into each group of pin holes, and the guide cylinder 22 and the screw sleeve part 21 are locked in the circumferential direction and the axial direction by the plurality of pins 26; typically, each pin 26 is an interference fit with the guide cylinder 22 and a clearance fit with the threaded sleeve portion 21. Furthermore, the interior of the screw sleeve portion 21 has a threaded hole of a through hole structure in the axial direction, which is used for the insertion of the operating rod 1, and the threaded hole of the screw sleeve portion 21 is arranged substantially coaxially with the guide hole 4 of the guide cylinder 22.
The base plate 23 and the guide cylinder 22 are of an integral forming structure, the base plate 23 is formed at the lower end of the guide cylinder 22 in a radial outward folding structure, the base plate 23 and the guide cylinder 22 form an inverted T-shaped structure, and the existence of the base plate 23 cannot influence the guide hole 24 on the guide cylinder 22. The two kidney-shaped holes 25 are formed in the base plate 23 extending radially from the guide cylinder 22, and the two kidney-shaped holes 25 are oriented in the same direction, so that the two kidney-shaped holes 25 in the base plate 23 should be able to correspond to the positioning holes 52 on both sides of the bush mounting hole 51 in the component body 5 when in contact fit with the component body 5, that is, the two kidney-shaped holes 25 in the base plate 23 should be able to correspond to the positioning holes 52 in the component body 5. In addition, when the positioning base 2 of the above structure is in contact fit with the component body 5, the positioning base 2 has the bottom surface of the base plate 23 as a joint surface, and thus the bottom surface of the base plate 23 serves as a positioning surface on which the positioning base 2 can be positioned on the component body 5, which requires that the contour line of the bottom surface of the base plate 23 is matched with the molding surface of the component body 5 where the bushing mounting hole 51 is located.
The operating rod 1 is provided with a handle part 11, a rod body part 12, a force transmission part 13, a connecting neck 14 and a limiting part 15 in sequence in the axial direction, the diameter of the handle part 11 is the largest, and the whole operating rod 1 is of a T-shaped structure.
The rod body 12 has a thread structure for connecting the screw sleeve portion 21 of the positioning base 2, that is, the thread structure of the rod head 12 matches with the thread structure of the screw sleeve portion 21, and the rod body 12 axially extends into the guide hole 24 of the positioning base 2 through the screw sleeve portion 21.
The handle 11 is located at the upper end of the shaft 12, and the handle 11 is located outside the positioning base 2 when the shaft 12 axially extends into the guiding hole 24 of the positioning base 2. A hand-pinching friction-increasing structure, such as a net-like knurled structure, is provided on the outer periphery of the handle portion 11.
The force transmission part 13 is positioned below the thread structure on the rod body part 12 and is formed in a radial plane structure, namely, the rod body at the force transmission part 13 is in a coaxial step structure.
The connecting neck 14 is arranged below the force transmission part 13, and the connecting neck 14 is of an axial polished rod structure. The inner diameter of the end face of the force transmission part 13 is substantially equal to the outer diameter of the connecting neck 14, and the outer diameter of the end face of the force transmission part 13 is larger than the outer diameter of the connecting neck 14.
The limiting part 15 is positioned below the connecting neck 14, and the outer diameter of the limiting part 15 is slightly larger than that of the connecting neck 14. The limiting portion 15 is provided with a thread structure, the spiral direction of the thread structure is opposite to the spiral direction of the thread structure on the rod body portion 12, the thread structure on the rod body portion 12 is set to be a right-handed thread, and the thread structure on the limiting portion 15 is a left-handed thread.
The operating rod 1 with the structure extends into the guide hole 24 of the positioning base 2 with the structure in an axial displaceable manner through the threaded structure which can be screwed in the circumferential direction, the operating rod 1 is basically matched with the positioning base 2 in a coaxial manner, and the operating rod 1 is connected with the thrust conversion part 3 and the pressure head 4 in the guide hole 24.
The thrust conversion piece 3 is a ring-shaped antifriction washer of bronze structure, which is sleeved at the connecting neck 14 of the operating rod 1 and forms clearance fit with the inside of the guide hole 24 of the positioning base 2. The upper surface of the thrust conversion member 3 is in surface contact engagement with the force transmission portion 13 on the operating lever 1. The lower side surface of the thrust conversion member 3 is brought into surface contact engagement with the top surface of the ram 4. The thrust conversion member 3 functions to convert the circumferential rotational motion of the operating lever 1 into the linear displacement motion of the ram 4.
The pressure head 4 is a column structure matched with the guide hole 24 on the positioning base 2, and the pressure head 4 is in clearance fit with the guide hole 24. The outside diameter of the ram 4 should be at least equal to the outside diameter of the liner 7 to be installed, and typically the outside diameter of the ram 4 is slightly larger than the outside diameter of the liner 7 to be installed. The bottom end surface of the ram 4 serves as a surface for pushing the bush 7, which is required to be in flat contact with the bush 7, and thus, the bottom end surface of the ram 4 is of a planar structure. The inside of the ram 4 has a through-hole structure in the axial direction, which serves as a connection operation rod 1, and the inner diameter of which must be smaller than that of the bush 7 to be installed. Specifically, the interior of the ram 4 has a threaded hole section 41 on the side close to the thrust converter 3 and a limit counter-bore section 42 on the side close to the pushing surface (i.e., the bottom end surface) in the axial direction, the threaded hole section 41 on the ram 4 has a threaded structure that fits the limit portion 15 on the operating rod 1, and the depth of the threaded hole section 41 is generally smaller than the length of the connecting neck 14 on the operating rod 1; the inner diameter of the limiting counter bore section 42 is larger than the inner diameter of the threaded bore section 41, that is, larger than the outer diameter of the limiting portion 15 on the operating rod 1, and the depth of the limiting counter bore section 42 is generally larger than the length of the limiting portion 15 of the operating rod 1. The pressing head 4 of the aforementioned structure is connected to the stopper portion 15 and/or the connecting neck 14 of the aforementioned operation rod 1 through the threaded hole section 41 and/or the stopper countersink section 42 in the inner axial direction.
Referring to fig. 4, the operation of installing the bush 7 in the bush installation hole 51 of the component body 5 according to the present invention is substantially as follows:
axially abutting the bush 7 at the orifice of the bush mounting hole 51 on the part body 5;
axially aligning the guide hole 24 of the positioning base 2 with the bush 7 and the bush mounting hole 51 of the part body 5, so that the guide hole 24 is fitted over the bush 7, and ensuring that the positioning surface of the positioning base 2 is in surface contact with the molding surface of the bush mounting hole 51 of the part body 5; on this basis, the positioning base 2 is adjusted with the positioning hole 52 on the component body 5 as a target, the waist-shaped hole 25 on the base plate 23 is made to correspond to the positioning hole 52 on the component body 5, and the positioning screw 6 is fitted into the corresponding waist-shaped hole 25 and positioning hole 52, thereby positioning the positioning base 2 on the component body 5;
rotating the operating rod 1 in a direction (for example, clockwise) capable of displacing the operating rod 1 downward, wherein a circumferential rotating thrust of the operating rod 1 acts on the pressing head 4 through the thrust converting member 3, the pressing head 4 linearly displaces downward in the guide hole 24 and contacts with the upper end face of the bush 7, and continuing so that the pressing head 4 axially pushes the bush 7, so that the bush 7 is completely pushed and pressed into the bush mounting hole 51 on the component body 5, the pressing head 4 acts on the surface of the component body 5, and when the pressing head cannot descend, the surface is mounted in place, and the end face of the bush 7 and the end face of the bush mounting hole 51 form a smooth fit.
In the installation process, the front end of the operating rod 1 is in floating connection with the pressure head 4; as for the linear displacement of the pressure head 4 in the guide hole 24, the pressure head 4 can be lifted by rotating the operating rod 1 in the opposite direction, and the limiting portion 15 cannot be screwed into the threaded hole section 41 of the pressure head 4 due to the opposite spiral directions of the two threaded structures on the operating rod 1, so that the pressure head 4 can be reliably driven to move linearly in the axial direction upwards.
Example 2
The rest of the present embodiment is the same as embodiment 1, except that: the thrust conversion piece is a thrust ball bearing.
Example 3
The rest of the present embodiment is the same as embodiment 1, except that: the screw sleeve part of the positioning base and the guide cylinder are of an integrally formed structure.
Example 4
The rest of the present embodiment is the same as embodiment 1, except that: the base plate of the positioning base and the guide cylinder are of a split combined structure.
The above examples are only for illustrating the present invention and are not to be construed as limiting the same. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: the specific technical solutions of the above embodiments can be modified, or some technical features can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.
Claims (10)
1. The utility model provides an in-hole bush precision mounting is as industry frock which characterized in that: the operation frock includes action bars (1) and location base (2), location base (2) have can be on the part body (5) go on the location face of location and can with guiding hole (24) that bush mounting hole (51) axial on the part body (5) correspond under the positioned state, action bars (1) stretch into with axial displaceable structure in guiding hole (24) of location base (2), just action bars (1) are in be connected with in guiding hole (24) can axial displaceable and push away pressure head (4) of bush (7).
2. An industrial tool for precisely installing an inner bushing in a hole according to claim 1, wherein: the positioning base (2) is provided with a screw sleeve part (21) which is positioned at the axial outer side of the guide hole (24), and the operating rod (1) extends into the guide hole (24) through the screw sleeve part (21) in a thread matching structure.
3. An industrial tool for precisely installing an inner bushing in a hole according to claim 2, wherein: a thrust conversion piece (3) positioned between the operating rod (1) and the pressure head (4) is arranged in a guide hole (24) of the positioning base (2).
4. An industrial tool for precisely installing an inner bushing in a hole according to claim 2 or 3, wherein: the axial of action bars (1) has handle portion (11) and body portion (12), have on the body portion (12) and connect the screw thread structure of location base (2), handle portion (11) are in the outside of location base (2).
5. An industrial tool for precisely installing an inner bushing in a hole according to claim 4, wherein: the axial direction of the operating rod (1) is also provided with a connecting neck (14) and a limiting part (15) which are positioned at the front end of the rod body part (12), the connecting neck (14) is used for matching with the limiting part (15) to sleeve the pressure head (4), and the limiting part (15) is matched and connected with the pressure head (4) in a threaded structure; the direction of the thread of the operating rod (1) connected with the pressure head (4) is opposite to the direction of the thread of the operating rod (1) connected with the screw sleeve part (21); the axial direction of the pressure head (4) is provided with a threaded hole section (41) close to one side of the thrust conversion piece (3) and a limiting counter bore section (42) close to one side of the pushing surface, and the inner diameter of the limiting counter bore section (42) is larger than that of the threaded hole section (41).
6. An industrial tool for precisely installing an inner bushing in a hole according to claim 3, wherein: the thrust conversion piece (3) is an antifriction washer or a thrust ball bearing.
7. An industrial tool for precisely installing an inner bushing in a hole according to claim 1 or 2, wherein: the positioning base (2) mainly comprises a guide cylinder (22), a threaded sleeve part (21) and a base plate (23), wherein a guide hole (24) is formed in the axial direction of the guide cylinder (22), the threaded sleeve part (21) is located at one end of the guide cylinder (22) in a radial inward folding structure, and the base plate (23) is located at the other end of the guide cylinder (22) in a radial outward folding structure.
8. An industrial tool for precisely installing an inner bushing in a hole according to claim 7, wherein: the base plate (23) is provided with at least one waist-shaped hole (25) which can correspond to the positioning hole (52) on the part body (5).
9. An industrial tool for precisely installing an inner bushing in a hole according to claim 7, wherein: the guide cylinder (22) and the screw sleeve part (21) are of a split combined structure.
10. An industrial tool for precisely installing an inner bushing in a hole according to claim 1, wherein: the part body (5) is a casing of an aircraft engine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201922063980.0U CN211102551U (en) | 2019-11-26 | 2019-11-26 | Operation tool for precisely installing hole inner bushing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201922063980.0U CN211102551U (en) | 2019-11-26 | 2019-11-26 | Operation tool for precisely installing hole inner bushing |
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CN211102551U true CN211102551U (en) | 2020-07-28 |
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CN201922063980.0U Expired - Fee Related CN211102551U (en) | 2019-11-26 | 2019-11-26 | Operation tool for precisely installing hole inner bushing |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113369839A (en) * | 2021-05-27 | 2021-09-10 | 成都飞机工业(集团)有限责任公司 | High-precision bushing assembling and centering device and bushing centering and assembling method |
CN113928588A (en) * | 2021-11-16 | 2022-01-14 | 中国人民解放军第五七一九工厂 | Air pressure reducer graphite lining crack repairing method |
CN114888749A (en) * | 2022-05-23 | 2022-08-12 | 成都飞机工业(集团)有限责任公司 | Mounting tool and mounting method for eccentric bushing |
CN114918645A (en) * | 2022-02-21 | 2022-08-19 | 邵亮 | Large-scale spiale sleeve location circle bush installation device |
CN114918872A (en) * | 2022-03-15 | 2022-08-19 | 邵亮 | Large-scale spiale sleeve location circle bush dismounting device |
-
2019
- 2019-11-26 CN CN201922063980.0U patent/CN211102551U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113369839A (en) * | 2021-05-27 | 2021-09-10 | 成都飞机工业(集团)有限责任公司 | High-precision bushing assembling and centering device and bushing centering and assembling method |
CN113928588A (en) * | 2021-11-16 | 2022-01-14 | 中国人民解放军第五七一九工厂 | Air pressure reducer graphite lining crack repairing method |
CN114918645A (en) * | 2022-02-21 | 2022-08-19 | 邵亮 | Large-scale spiale sleeve location circle bush installation device |
CN114918872A (en) * | 2022-03-15 | 2022-08-19 | 邵亮 | Large-scale spiale sleeve location circle bush dismounting device |
CN114918872B (en) * | 2022-03-15 | 2024-05-28 | 南京尚科得科技发展有限公司 | Large-scale shaft sleeve positioning round bushing dismounting device |
CN114888749A (en) * | 2022-05-23 | 2022-08-12 | 成都飞机工业(集团)有限责任公司 | Mounting tool and mounting method for eccentric bushing |
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