CN210790814U

CN210790814U - Pin shaft dismounting device

Info

Publication number: CN210790814U
Application number: CN201921903150.8U
Authority: CN
Inventors: 周远清
Original assignee: Chongqing Jinjiu Building Material Group Co ltd
Current assignee: Chongqing Jinjiu Building Material Group Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-06-19
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a round pin axle dismounting device, including the U-shaped frame, the setting element, the frame of support column and frame shape, the inboard bottom of U-shaped frame is provided with the cavity jack, the both ends of setting element are connected with the inboard relative both sides face of U-shaped frame respectively, the cavity jack sets up the below at the setting element, the locating hole has been seted up at the middle part of setting element, the one end and the cavity jack butt of support column, the other end passes the locating hole and extends toward the direction of keeping away from the jack, the frame includes bottom plate and roof, distance between bottom plate and the roof can be adjusted, the U-shaped frame sets up on the bottom plate. The pin shaft dismounting device aims at the pin shaft through one end of the supporting column, the pin shaft is pushed through the supporting column by the pushing force of the jack, the pin shaft is withdrawn from the pin hole, and the top plate and the bottom plate of the rack are clamped on the circumferential surface of the shaft through the adjusting interval, so that the dismounting device is fixed. The whole pin shaft is safe and convenient to disassemble, the disassembling time is short, and the manual disassembling difficulty is reduced.

Description

Pin shaft dismounting device

Technical Field

The utility model relates to a dismounting device technical field, concretely relates to round pin axle dismounting device.

Background

Generally, when equipment is maintained, the equipment needs to be disassembled, and in the disassembling process, the situation that the pin shaft needs to be disassembled is often met. Because the pin shaft is inserted into the pin hole through interference fit during installation, the disassembly process of the pin shaft is very laborious.

To the little round pin axle dismantlement of some diameters, generally maintenance person holds the hand hammer in one hand, holds the thin drill rod of one end than round pin axle in one hand, hits the tip of propping up at the round pin axle with the hand hammer with the thin end of drill rod and throws out, alone can accomplish. If meet the great round pin axle of diameter that uses on the large-scale machinery and dismantle, just one or two people hold the drill rod with both hands, another person waves the sledge hammer and tamps the outer end of holding the drill rod and dismantles, and the dismantlement process time is long, and it is very hard to dismantle, and personnel beat the process moreover and can take place to injure people's accident, and the safety can't guarantee.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a round pin axle dismounting device solves the technical problem that artifical waste time and energy and potential safety hazard when dismantling large-scale mechanical pin axle.

In order to achieve the above purpose, the present invention is implemented by the following technical solutions: a pin shaft dismounting device, which comprises a U-shaped frame, a positioning piece, a supporting column and a frame-shaped frame,

the bottom of the inner side of the U-shaped frame is provided with a hollow jack,

two ends of the positioning piece are respectively connected with two opposite side surfaces of the inner side of the U-shaped frame, the hollow jack is arranged below the positioning piece, a gap is arranged between the hollow jack and the positioning piece, the middle part of the positioning piece is provided with a positioning hole,

one end of the supporting column is abutted against the hollow jack, the other end of the supporting column passes through the positioning hole and extends to the direction far away from the jack for being abutted against the pin shaft,

the frame includes bottom plate and roof, and the distance between bottom plate and the roof can be adjusted, and the U-shaped frame sets up on the bottom plate, and the middle part of roof is equipped with the through-hole that supplies the round pin axle to wear out.

The pin shaft dismounting device penetrates through the positioning hole and the through hole through one end of the supporting column to align the pin shaft, the other end of the supporting column is connected with the hollow jack, the pin shaft is pushed through the supporting column by utilizing the thrust of the jack, the pin shaft is withdrawn from the pin hole, and the top plate and the bottom plate of the rack are clamped on the circumferential surface of the shaft through the adjusting interval, so that the dismounting device is fixed. The whole pin shaft is safe and convenient to disassemble, the disassembling time is short, and the manual disassembling difficulty is reduced.

Further, the frame still includes the lead screw, and the quantity of lead screw is two, and two lead screw intervals set up between bottom plate and roof, and the both ends of two lead screws all run through bottom plate and roof. Through nut and lead screw connection, make the distance between bottom plate and the roof adjustable, adapt to the different size of round pin axle place axle diameter to this fixed this dismounting device.

Furthermore, a groove is formed in the middle of one side, close to the bottom plate, of the top plate, and the through hole is formed in the bottom of the groove. The groove is formed in the top plate to adapt to the circumferential surface of the shaft where the pin shaft is located, and the disassembling device is prevented from being fixed unstably when the pin shaft is disassembled.

Further, the concave surface of the groove is covered with a sponge block. The sponge piece can increase the area of contact of the periphery of the axis of the groove and the pin shaft, and the stability of fixing of the dismounting device is enhanced.

Furthermore, a sleeve capable of changing the aperture size is arranged in the positioning hole in the positioning piece. The barrel can adapt to the disassembly work of different diameter support columns, and the support columns are prevented from shaking back and forth in the positioning holes.

Further, the sleeve includes that the shell establishes the inner shell in the shell with the cover, is provided with the adjusting part that can adjust the size of inner shell diameter between shell and the inner shell, and the inner shell is made by elastic rubber.

Furthermore, the adjusting component comprises a first supporting plate, a second supporting plate and an elastic part, two ends of the elastic part are respectively fixed on the first supporting plate and the second supporting plate, one side of the first supporting plate, far away from the elastic part, is attached to the outer shell, and one side of the second supporting plate, far away from the elastic part, is attached to the inner shell.

The utility model has the advantages that: this round pin axle dismounting device passes locating hole, through-hole alignment round pin axle through support column one end, and the other end and cavity jack butt utilize the thrust of jack to pass through the support column and promote the round pin axle, make the round pin axle withdraw from in the pinhole, and the roof of frame and bottom plate pass through the spacing joint on the periphery of axle, play fixed dismounting device's effect. The setting of recess and sponge piece can strengthen the stability that the device was fixed on the axle circumference, and the size in self aperture can be adjusted in telescopic setting, avoids the support column to make a round trip to rock at the locating hole. The whole pin shaft is safe and convenient to disassemble, the disassembling time is short, and the manual disassembling difficulty is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the sleeve of the present invention;

reference numerals: 100-U-shaped frame, 110-hollow jack, 200-positioning element, 210-positioning hole, 300-supporting column, 400-frame, 410-bottom plate, 420-top plate, 421-through hole, 430-lead screw, 440-groove, 450-sponge block, 500-sleeve, 510-outer shell, 520-inner shell, 530-adjusting component, 531-first supporting plate, 532-second supporting plate, 533-elastic element.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate and imply that the indicated position or element must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

As shown in fig. 1 to 2, the present embodiment provides a pin dismounting device, which includes a U-shaped frame 100, a positioning member 200, a supporting column 300, and a frame-shaped frame 400.

The bottom of the inner side of the U-shaped frame 100 is provided with a hollow jack 110, two ends of the positioning member 200 are respectively connected with two opposite side surfaces of the inner side of the U-shaped frame 100, the hollow jack 110 is arranged below the positioning member 200, a gap is arranged between the hollow jack 110 and the positioning member 200, and the middle part of the positioning member 200 is provided with a positioning hole 210. Preferably, the positioning member 200 is made of an elastic material and has an arc shape, so as to be more attached to the shaft body of the shaft on which the pin shaft is located.

One end of the supporting column 300 abuts against the hollow jack 110, and the other end of the supporting column passes through the positioning hole 210 and extends in the direction away from the jack for abutting against the pin shaft. The hollow jack 110 provides power for the supporting column 300, and then pushes the supporting column 300 to squeeze the pin shaft, so that the pin shaft is withdrawn from the pin hole. Preferably, the hollow jack 110 is an electro-hydraulic hollow jack (60T). The diameter of the support post 300 is smaller than the diameter of the pin shaft so that the support post 300 can be inserted into the pin hole to push the pin shaft.

Further, a sleeve 500 with a changeable aperture size is disposed in the positioning hole 210 of the positioning member 200. Specifically, the sleeve 500 includes an outer shell 510 and an inner shell 520 sleeved in the outer shell 510, an adjusting component 530 capable of adjusting the size of the diameter of the inner shell 520 is disposed between the outer shell 510 and the inner shell 520, and the inner shell 520 is made of elastic rubber. The adjusting assembly 530 includes a first supporting plate 531, a second supporting plate 532 and an elastic member 533, two ends of the elastic member 533 are respectively fixed on the first supporting plate 531 and the second supporting plate 532, one side of the first supporting plate 531 away from the elastic member 533 is attached to the outer shell 510, and one side of the second supporting plate 532 away from the elastic member 533 is attached to the inner shell 520.

When the supporting column 300 is inserted into the sleeve 500, the diameter of the inner shell 520 is increased due to the extrusion of the supporting column 300, the adjusting component 530 is further extruded by the extrusion force of the supporting column 300 to the inner surface of the circumference of the inner shell 520, so that the elastic component 533 is compressed by pressure, the distance between the first supporting plate 531 and the second supporting plate 532 is shortened, meanwhile, the elastic component 533 also provides a reaction force for the supporting column 300, the supporting column 300 cannot rock in the positioning hole 210, the stability is improved, and the supporting column 300 is prevented from being pushed by the hollow jack 110 to deviate.

The frame 400 comprises a bottom plate 410 and a top plate 420, the distance between the bottom plate 410 and the top plate 420 can be adjusted, the U-shaped frame 100 is arranged on the bottom plate 410, and a through hole 421 for the pin shaft to penetrate out is arranged in the middle of the top plate 420. The rack 400 further comprises two lead screws 430, the number of the lead screws 430 is two, the two lead screws 430 are arranged between the bottom plate 410 and the top plate 420 at intervals, two ends of the two lead screws 430 penetrate through the bottom plate 410 and the top plate 420, and two ends of the two lead screws 430 are fixed by nuts. The distance between the bottom plate 410 and the top plate 420 varies depending on the diameter of the shaft on which the pin is located. When the distance between the adjusting bottom plate 410 and the adjusting top plate 420 is lengthened, the nuts on the two lead screws 430 are screwed, so that the nuts at the two ends of each lead screw 430 are screwed in opposite directions; when the distance between the adjusting bottom plate 410 and the adjusting top plate 420 is shortened, the nuts on the two lead screws 430 are screwed, so that the nuts at the two ends of each lead screw 430 are screwed in opposite directions.

The middle of the top plate 420 near the bottom plate 410 is provided with a groove 440, and the through hole 421 is provided at the bottom of the groove 440. The concave surface of the groove 440 is covered with a sponge block 450. When the bottom plate 410 and the top plate 420 clamp the shaft body of the shaft where the pin shaft is located in the middle, the groove 440 in the top plate 420 covers the shaft body, the sponge block 450 arranged in the groove 440 can increase the contact area of the groove 440 and the shaft body, the gap between the groove 440 and the shaft body is reduced, the shaft body is prevented from shaking in the groove 440, and the fixing stability of the pin shaft dismounting device is enhanced.

In this embodiment, the bottom of the sponge block 450 is provided with a small hole corresponding to the through hole 421, and the axis of the small hole, the axis of the supporting column 300, the axis of the positioning hole 210, and the axis of the through hole 421 are all on the same straight line, so that the supporting column 300 is prevented from shifting when the pin shaft is detached, and the pin shaft is more easily withdrawn from the pin hole.

The utility model has the advantages that: according to the pin shaft dismounting device, one end of the supporting column 300 penetrates through the positioning hole 210 and the through hole 421 to align with the pin shaft, the other end of the supporting column is abutted against the hollow jack 110, the pin shaft is pushed through the supporting column 300 by the aid of pushing force of the jack, the pin shaft is withdrawn from the pin hole, the top plate 420 and the bottom plate 410 of the rack 400 are clamped on the circumferential surface of the shaft through adjusting intervals, and the pin shaft dismounting device is fixed. The stability of device fixing on the axle circumference can be strengthened in recess 440 and sponge piece 450's setting, and the size in self aperture can be adjusted in sleeve 500's setting, avoids support column 300 to rock back and forth at locating hole 210. The whole pin shaft is safe and convenient to disassemble, the disassembling time is short, and the manual disassembling difficulty is reduced.

The utility model discloses a use method: when the device is installed, the top plate 420 is detached from the device, then the proper support column 300 is needed according to the diameter of the pin shaft, one end of the support column 300 penetrates through the cylinder body in the positioning hole 210 to be abutted against the electric hydraulic hollow jack 110, and in order to prevent the abutting part of the support column 300 and the hollow jack 110 from shaking, a certain amount of filler (cloth) can be wrapped around the support column 300;

then clamping the shaft body of the shaft with the pin shaft between the two lead screws 430, and installing the top plate 420 through nuts to enable the groove 440 and the sponge block 450 of the top plate 420 to cover the shaft body; screwing a nut on one side of the top plate 420 to adjust the distance between the top plate 420 and the bottom plate 410, aligning one end of the support column 300 close to the shaft body with the pin shaft, and then screwing the nut on one side of the top plate 420 to fix the device;

finally, the hollow jack 110 is started, so that the hollow jack 110 pushes the supporting column 300, and the supporting column 300 pushes the pin shaft to withdraw from the pin hole.

Finally, it should be noted that: the basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a round pin axle dismounting device which characterized in that: comprises a U-shaped frame, a positioning piece, a supporting column and a frame-shaped frame,

two ends of the positioning piece are respectively connected with two opposite side surfaces of the inner side of the U-shaped frame, the hollow jack is arranged below the positioning piece, a gap is arranged between the hollow jack and the positioning piece, a positioning hole is arranged in the middle of the positioning piece,

the frame includes bottom plate and roof, the bottom plate with distance between the roof can be adjusted, and the U-shaped frame sets up on the bottom plate, the middle part of roof is equipped with the through-hole that supplies the round pin axle to wear out.

2. The pin dismounting device according to claim 1, characterized in that: the rack further comprises two lead screws, the two lead screws are arranged between the bottom plate and the top plate at intervals, and two ends of each lead screw penetrate through the bottom plate and the top plate.

3. The pin dismounting device according to claim 2, characterized in that: the middle part of one side, close to the bottom plate, of the top plate is provided with a groove, and the through hole is formed in the bottom of the groove.

4. The pin dismounting device according to claim 3, characterized in that: the concave surface of the groove is covered with a sponge block.

5. The pin dismounting device according to claim 1, characterized in that: and a sleeve capable of changing the aperture size is arranged in the positioning hole on the positioning piece.

6. The device for disassembling the pin shaft according to claim 5, wherein: the sleeve includes that shell and cover establish inner shell in the shell, the shell with be provided with the adjusting part that can adjust the size of inner shell diameter between the inner shell, and the inner shell is made by elastic rubber.

7. The device for disassembling the pin shaft according to claim 6, wherein: the adjusting component comprises a first supporting plate, a second supporting plate and an elastic piece, two ends of the elastic piece are fixed on the first supporting plate and the second supporting plate respectively, one side, far away from the elastic piece, of the first supporting plate is attached to the outer shell, and one side, far away from the elastic piece, of the second supporting plate is attached to the inner shell.