CN219337530U

CN219337530U - Horizontal dismounting device for long cylinder body of heavy-duty box body with interference fit

Info

Publication number: CN219337530U
Application number: CN202223598362.4U
Authority: CN
Inventors: 鲍英华; 林安欣; 张贺清; 赵萌萌; 沈浩; 闻文; 刘磊; 李超; 于学峰; 高云喜
Original assignee: Inner Mongolia North Heavy Industries Group Co Ltd
Current assignee: Inner Mongolia North Heavy Industries Group Co Ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-07-14
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a horizontal dismounting device for an inner hole interference fit long cylinder of a heavy-duty box body, which comprises: the fixing plate, the counter plate, the jack and the screw rod are round, and a fixing plate through hole is formed in the middle of the fixing plate; the side surface of the counter plate is provided with a plurality of counter plate grooves, and the outer sides of the counter plate grooves are provided with a plurality of counter plate through holes; the rear end of the jack is arranged in the groove of the counter plate, and the telescopic rod at the front end is propped against the fixed plate; the screw rod is sleeved in the through hole of the counter plate. The utility model can safely and conveniently detach the cylinder body with interference fit and serious corrosion from the inner hole of the heavy-duty box body.

Description

Horizontal dismounting device for long cylinder body of heavy-duty box body with interference fit

Technical Field

The utility model belongs to the technical field of mechanical equipment, and particularly relates to a horizontal dismounting device for an inner hole interference fit long cylinder of a heavy-duty box body.

Background

The long barrel type component with interference fit in the inner hole of the heavy box body is generally used for heavy equipment, and has large volume and weight and severe working environment. The heavy type box body is in environments such as high temperature, high humidity, high salinity, complex ocean and the like all the year round, corrosion is serious due to corrosion, and the assembly surface (the length is more than 500 mm) and the non-matched end surface of the cylindrical part can generate serious corrosion. The cylinder part of the heavy-duty box body inner hole interference fit needs to be replaced after being detached regularly, and the interference fit surface is rusted seriously, so that the friction force in the fit surface is large, and the part assembled horizontally is more difficult to detach.

Disclosure of Invention

The utility model aims to provide a horizontal dismounting device for a long cylinder body with interference fit in an inner hole of a heavy-duty box body, which can safely and conveniently dismount the cylinder body with interference fit and serious corrosion from the inner hole of the heavy-duty box body.

The technical proposal is as follows:

horizontal dismounting device of long barrel of heavy box hole interference fit includes: the fixing plate, the counter plate, the jack and the screw rod are round, and a fixing plate through hole is formed in the middle of the fixing plate; the side surface of the counter plate is provided with a plurality of counter plate grooves, and the outer sides of the counter plate grooves are provided with a plurality of counter plate through holes; the rear end of the jack is arranged in the groove of the counter plate, and the telescopic rod at the front end is propped against the fixed plate; the screw rod is sleeved in the through hole of the counter plate.

Further, the rib plates are arranged on the outer sides of the reverse thrust plates, rib plate through holes are formed in the rib plates, and the screw rod penetrates through the rib plate through holes and is fixed through locking nuts.

Further, the rib plate is of an integrated crisscross structure.

Further, the counter plate is rectangular.

Compared with the prior art, the utility model has the following advantages:

the utility model can safely and conveniently detach the cylinder body with serious interference fit and corrosion from the inner hole of the heavy-duty box body.

The horizontal dismounting device for the heavy-duty box inner hole interference fit long barrel is mature in dismounting of interference fit box components with serious corrosion under complex marine environment, and is simple in structure, low in manufacturing cost, convenient to use, safe and efficient.

The fixing plate and the reverse pushing plate are made of carbon structural steel, and the outer circle of the fixing plate is designed to have no chamfer so as to ensure the contact area with the cylindrical part; and the hardness HRC60 is ensured by performing local quenching treatment-level low-temperature tempering at a position 10mm away from the outer circle. The design of higher hardness and no chamfer has guaranteed the area of contact with the tubular part, has solved because the tubular part is thin wall tubular structure, and the rigidity is relatively poor, can cause the problem of body deformation after the single-point atress is too high when dismantling.

The counter plate punches 4 mounting hole positions of the wrapping base material according to the projection state (the intersection point of the central lines of the long side and the wide side is coincided with the center of the wrapping base material) and 4 mounting hole positions of the wrapping base material

The concentric via hole ensures that the position of the reverse thrust plate is correct, and simultaneously, the stability of the whole set of disassembly tool is enhanced, and the tool inclination caused by overlarge local stress is prevented.

The center of the fixing plate is provided with a fixing plate through hole, and when the weight of the mechanism is reduced, the lever effect caused by uneven thrust force of the cylindrical part is cut off. The problem of uneven friction force of the cylindrical part caused by different circumference corrosion conditions is solved, and the whole part is uniformly stressed and moved.

The combined state of the fixed plate and the reverse thrust plate forms a positive stress symmetrical mechanism, the piston end of the jack is propped against the position 150mm away from the center of the circle on the 120-degree bisector of the fixed plate, and the jack is used for eliminating the internal stress of the cylindrical part and preventing the part from being deformed by local stress.

Drawings

FIG. 1 is a schematic diagram of a horizontal dismounting device for a long cylinder body in interference fit with an inner hole of a heavy-duty box body;

FIG. 2 is a schematic view of the structure of the fixing plate in the present utility model;

FIG. 3 is a schematic view of the structure of the thrust plate of the present utility model;

FIG. 4 is a bottom view of FIG. 3;

fig. 5 is a schematic view of the rib structure of the present utility model.

Detailed Description

The following description fully illustrates the specific embodiments of the utility model to enable those skilled in the art to practice and reproduce it.

As shown in FIG. 1, the horizontal dismounting device for the long cylinder body in interference fit with the inner hole of the heavy-duty box body is structurally schematic.

Horizontal dismounting device of long barrel of heavy box hole interference fit includes: the fixed plate 1 is used for being fixed inside the heavy box 6, providing support, the thrust reverser plate 2 is used for guiding, and the jack 3 is used for providing thrust.

As shown in fig. 2, the structure of the fixing plate 1 of the present utility model is schematically shown.

The fixed plate 1 is circular, and the middle part is provided with the fixed plate through-hole for maintenance access, and the fixed plate 1 outside supports on the drum 7 in the heavy box 1.

As shown in fig. 3, a schematic structural view of the thrust plate 2 according to the present utility model is shown in fig. 4, which is a bottom view of fig. 3.

The thrust plate 2 has a rectangular shape, a plurality of thrust plate grooves 21 are provided on the side face, and a plurality of thrust plate through holes 22 are provided outside the thrust plate grooves 21.

The rear end of the jack 3 is arranged in the reverse push plate groove 21, and the telescopic rod at the front end is propped against the fixed plate 1.

The end of the heavy box body 6 is provided with a plurality of threaded holes, one end of the screw rod 4 is connected to the threaded holes, and the through hole 22 of the reverse thrust plate is penetrated on the screw rod 4.

As shown in fig. 5, the rib 5 of the present utility model is schematically structured.

In order to enhance the strength of the thrust plate 2, a rib 5 is provided on the outer side of the thrust plate 2, and a screw rod 7 is fixed by a lock nut through a rib through hole 51. The rib plates 5 are of an integrated crisscross structure.

The working process is as follows:

1. and cleaning rust, dirt and the like on the end face of the dry heavy box body 6 and the threaded hole, and cleaning the front end face of the barrel body 7 in interference fit with the inner hole of the heavy box body.

2. The fixing plate 1 is pushed in along the inner hole of the heavy-duty box body and is flatly attached to the front end surface of the cylinder body.

3. One end of the screw 4 is connected with a threaded hole on the end face of the heavy box body through threads, the other end of the screw 4 penetrates through the rib plate through hole 51 and the counter plate through hole 22, and the locking nut is adjusted to ensure that the rib plate 4 and the counter plate 2 are completely attached.

4. The base of the jack 3 is arranged in a reverse pushing plate groove 21 for mounting and positioning of the reverse pushing plate 2, and the spiral ejector rod of the jack extends out and is tightly propped against the fixed plate 1, so that the jack 3 is ensured to be in a horizontal position.

5. The locking nut is adjusted, so that the rib plate 5, the thrust reverser 2, the jack 3 and the fixing plate 1 are completely attached and have no gap, the jack 3 is positioned at the horizontal position, and the screw rod 4 is in a tensioning state. The inspection screw is fastened and reliable in threaded connection with the end face of the heavy-duty box body 6, and the whole dismounting device does not shake.

6. The locking nut is screwed down, the heavy hammer impacts the rib plate 5 by using external force, the rusted interference fit cylinder body is loosened, the locking nut is continuously locked and screwed down, the cylinder body is slowly moved along the inner hole of the heavy box body 6 under the action of the jack 3, the locking nut is locked and screwed down at any time, and the heavy hammer impacts the rib plate 5 by using external force in the process as required until the cylinder body is completely disassembled from the inner hole of the heavy box body.

The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present utility model may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims

1. Horizontal dismounting device of long barrel of heavy box hole interference fit, its characterized in that includes: the fixing plate, the counter plate, the jack and the screw rod are round, and a fixing plate through hole is formed in the middle of the fixing plate; the side surface of the counter plate is provided with a plurality of counter plate grooves, and the outer sides of the counter plate grooves are provided with a plurality of counter plate through holes; the rear end of the jack is arranged in the groove of the counter plate, and the telescopic rod at the front end is propped against the fixed plate; the screw rod is sleeved in the through hole of the counter plate.

2. The horizontal dismounting device for the long cylinder body of the heavy-duty box body inner hole interference fit according to claim 1, wherein a rib plate is arranged on the outer side of the reverse thrust plate, a rib plate through hole is formed in the rib plate, and the screw rod penetrates through the rib plate through hole and is fixed by a locking nut.

3. The horizontal removal device for the long cylinder body of the heavy-duty box body with interference fit as claimed in claim 2, wherein the rib plate is of an integrated crisscross structure.

4. The horizontal removal device for an interference fit long cylinder in a heavy duty tank of claim 1, wherein the counter plate is rectangular.