CN-224223791-U - Adjustable interference fit disengaging device

Abstract

The utility model relates to the technical field of disassembly tools, in particular to an adjustable interference fit disengaging device. The utility model comprises a mounting piece and a female piece which is arranged at the tail end of the mounting piece in interference fit, wherein an adjustable clamping plate is arranged on the back side of the female piece in an abutting mode, a tension screw is arranged at the tail end of the mounting piece in an abutting mode through a fixing plate, the adjustable clamping plate and the fixing plate are mutually parallel, a plurality of fixing screws with equal length are fixed at intervals, the tension screw is screwed into the fixing plate for a certain distance, the fixing plate drives the adjustable clamping plate to axially move along the mounting piece, and the female piece axially breaks away from the mounting piece. According to the utility model, through the disengaging gear positioned on the same side of the female part and the mounting part, the female part is uniformly stressed relative to the mounting part to realize axial disengagement, so that the thinner female part is prevented from deforming in the process of disassembly, and the female part dismounting device is particularly suitable for the disassembly of the female part with interference fit with the shaft diameter of more than 50 mm.

Inventors

• SONG QIYUE
• WANG LEI
• LIU YONGHUA
• WANG LIJUN
• XU PEI

Assignees

• 中国石油天然气第七建设有限公司
• 中国石油工程建设有限公司
• 中国石油天然气集团有限公司

Dates

Publication Date

20260512

Application Date

20250430

Claims (6)

1. 1. The utility model provides an adjustable interference fit breaks away from device, includes installed part (1) to and interference fit sets up in the terminal female spare (2) of installed part (1), its characterized in that, the back side conflict of female spare (2) is provided with adjustable cardboard, and the end of installed part (1) is provided with pulling force lead screw (8) through fixed plate (7) conflict, and adjustable cardboard is parallel to each other and the interval is fixed with fixed lead screw (6) that a plurality of lengths are equal with fixed plate (7), pulling force lead screw (8) precession certain distance relative to fixed plate (7), and fixed plate (7) drive adjustable cardboard along installed part (1) axial displacement, and female spare (2) are along installed part (1) axial break away from.
2. 2. The adjustable interference fit disengaging device according to claim 1, wherein the adjustable clamping plate comprises an adjusting clamping plate I (3) and an adjusting clamping plate II (4), the adjusting clamping plate I (3) and the adjusting clamping plate II (4) are arranged in a U-shaped plate shape, the U-shaped groove diameter of the adjusting clamping plate I (3) and the adjusting clamping plate II is larger than the diameter of the mounting piece (1), and the adjusting clamping plate I (3) and the adjusting clamping plate II are overlapped left and right to form a whole by taking the mounting piece (1) as a center.
3. 3. The adjustable interference fit disengaging device according to claim 2, wherein two strip holes I and two fixing holes I are respectively arranged at four end corners of the adjusting clamping plate I (3), two strip holes II and two fixing holes II are respectively arranged at four end corners of the adjusting clamping plate II (4), the strip holes I are matched with the fixing holes II, the fixing holes I are matched with the strip holes II, and a spacing layer is arranged between each fixing hole I and each fixing hole II.
4. 4. The adjustable interference fit disengaging device according to claim 2, wherein two sides of the U-shaped opening of the adjusting clamping plate I (3) are respectively provided with a nut, the nuts are matched with an adjusting screw (5) perpendicular to the side of the adjusting clamping plate I (3), the adjusting screw (5) is screwed a certain distance relative to the nuts, the tail end of the adjusting screw (5) is abutted against a spacing layer of the adjusting clamping plate II (4), and the adjusting clamping plate II (4) is pushed to adjust the distance relative to the adjusting clamping plate I (3).
5. 5. An adjustable interference fit disengaging device according to claim 3, characterized in that two strip holes III and two fixing holes III are provided at four corners of the fixing plate (7), two fixing screws (6) are sequentially arranged through the fixing holes I and the strip holes II and III, and the other two fixing screws (6) are sequentially arranged through the fixing holes II and the strip holes I and III.
6. 6. The adjustable interference fit disengagement apparatus according to claim 1, characterized in that the back side of the female member (2) is uniformly stressed by an adjustable clamping plate, avoiding deformation of the female member (2) upon disengagement.

Description

Adjustable interference fit disengaging device Technical Field The utility model relates to the technical field of disassembly tools, in particular to an adjustable interference fit disengaging device. Background In the field of mechanical assembly and repair, the removal of interference fit components is a common problem. Numerous attempts have been made by those skilled in the art to solve such problems. For example, the centrifugal pump impeller dismounting device disclosed in the Chinese patent grant publication No. CN213290092U enables the impeller to be uniformly stressed around during dismounting by uniformly adjusting the adjusting piece, and effectively avoids the problem of impeller strain caused by uneven stress. However, this solution has limitations. The novel high-pressure centrifugal pump impeller is only suitable for a specific structure of a centrifugal pump impeller, and is difficult to play a role for interference fit female parts with larger shaft diameters, particularly thinner metal female parts. When the parent component is disassembled, the parent component is easy to deform if the stress is uneven. Because the displacement detection disc needs to be reused after being disassembled, the thickness of the displacement detection disc is 10-16mm, the displacement detection disc is easy to deform in the disassembling process, the flatness deviation of the displacement detection disc is not more than 0.02mm, and the displacement detection disc is easy to deform in the disassembling process. There is thus still a need to study tools for the protective disassembly of interference-mounted centrifugal compressor displacement sensing discs. Disclosure of utility model The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing an adjustable interference fit disengaging device. The technical scheme adopted by the utility model is as follows: The utility model provides an adjustable interference fit breaks away from device, includes the installed part to and interference fit sets up in the terminal female spare of installed part, the dorsal part of female spare is contradicted and is provided with adjustable cardboard, and the terminal of installed part is contradicted through the fixed plate and is provided with the pulling force lead screw, and adjustable cardboard is parallel to each other and the fixed plate is fixed with a plurality of fixed lead screws that equal length at the interval, pulling force lead screw precesses certain distance relative to the fixed plate, and the fixed plate drives adjustable cardboard along installed part axial displacement, and female spare breaks away from along the installed part axial. According to the technical scheme, through the disengaging gear positioned on the same side of the female part and the mounting part, the female part is uniformly stressed relative to the mounting part so as to realize axial disengagement, and the thinner female part is prevented from deforming in the disassembling process. The whole cuboid frame that is of break away from the device is divided into the adjustable cardboard of conflict in master spare dorsal part to and conflict in the terminal fixed plate of installed part, adjustable cardboard keeps parallel state through four fixed screw rods with the fixed plate, utilizes precession tension screw rod that adjusts to apply external force to fixed plate and installed part, and adjustable cardboard then exerts external force that outwards breaks away from to master spare dorsal part, and because be the plane and exert external force, then master spare evenly atress when the relative installed part breaks away from, be difficult for taking place deformation. The adjustable clamping plate adopts a split structure, and is in butt joint by utilizing a left-right overlapping mode, and the two-layer structure has the advantages of increasing the bearable strength of stress, being suitable for separating female parts with different diameters, being particularly suitable for detaching various interference fit female parts with the shaft diameter of more than 50mm, along with safe use, high efficiency and wider range. In addition, the adjustable interference fit disengaging device provided by the utility model can also have the following additional technical characteristics: According to one embodiment of the utility model, the adjustable clamping plate comprises an adjusting clamping plate I and an adjusting clamping plate II, wherein the adjusting clamping plate I and the adjusting clamping plate II are arranged in a U-shaped plate shape, the U-shaped groove diameter of the adjusting clamping plate I and the adjusting clamping plate II is larger than the diameter of the mounting piece, and the adjusting clamping plate I and the adjusting clamping plate II are overlapped left and right to form a whole by taking the mounting piece as a center. In the technical scheme, the U-shaped gr