CN211053565U

CN211053565U - Dismantling device

Info

Publication number: CN211053565U
Application number: CN201921475982.4U
Authority: CN
Inventors: 田荣; 袁林涛; 李辉; 李勇; 郑颂贤; 程书朋; 宋水; 刘坤; 王飞; 刘中伍
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-07-21
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to a demolition device, which comprises a fixing mechanism, a positioning mechanism and an adjusting mechanism; the fixing mechanism comprises a sleeve; the sleeve is provided with a plurality of gears, and the gears are arranged at intervals in a staggered manner along the axial direction of the sleeve; the positioning mechanism comprises a mounting seat arranged in the sleeve, a limiting part connected with one side of the mounting seat and a clamping seat connected with one end of the mounting seat; the limiting piece is matched with the gear to fix the mounting seat and the sleeve; the clamping seat is used for abutting against a to-be-removed part of a workpiece; the adjusting mechanism comprises a mandril penetrating through the mounting seat and the clamping seat; one end of the ejector rod is used for abutting against the clamping seat to enable the clamping seat to expand, and the other end of the ejector rod is convexly arranged on the sleeve. The dismounting device inserts the clamping seat into a workpiece through the matching of the limiting part and the gear of the sleeve, and then moves the ejector rod to force the clamping seat to expand and abut against the workpiece to be dismounted; and finally, the sleeve and the ejector rod are pulled away from the workpiece, so that the part to be dismantled is separated from the workpiece. This demolish device compact structure, simple operation, assurance unit safety.

Description

Dismantling device

Technical Field

The utility model relates to a nuclear power equipment dismouting technical field especially relates to a demolish device.

Background

The nuclear power plant thimble tube mainly provides the passageway for reactor core neutron measuring probe, and its inner wall is dry, and outer wall and a return circuit medium direct contact become a return circuit pressure boundary with thimble tube seal assembly, so the integrality of thimble tube and its seal assembly relation to nuclear power plant return circuit boundary is crucial to nuclear power unit's safety.

Need change dactylotheca pipe when nuclear power unit overhaul, wherein including the seal assembly of dactylotheca pipe, and seal assembly because the part is many, small, and the material mainly is rubber and polytetrafluoroethylene, can take place to warp through the extrusion of several fuel circulation, demolish very difficult, if the sealed face of improper very easy fish tail of demolition tool moreover, influence unit safety.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a dismantling device with simple structure and convenient operation.

A dismounting device comprises a fixing mechanism, a positioning mechanism and an adjusting mechanism; the fixing mechanism comprises a sleeve; the sleeve is provided with a plurality of gears, and the gears are arranged at intervals in a staggered manner along the axial direction of the sleeve; the positioning mechanism comprises an installation seat arranged in the sleeve, a limiting part connected with one side of the installation seat and a clamping seat connected with one end of the installation seat; the limiting piece is matched with the gear to fix the mounting seat and the sleeve; the clamping seat is used for abutting against a to-be-removed part of a workpiece; the adjusting mechanism comprises an ejector rod penetrating through the mounting seat and the clamping seat; one end of the ejector rod is used for being abutted to the clamping seat to enable the clamping seat to expand, and the other end of the ejector rod is convexly arranged on the sleeve.

The dismounting device of the utility model inserts the clamping seat into the workpiece through the matching of the limiting part and the gear of the sleeve, and then moves the ejector rod to force the clamping seat to expand and abut against the workpiece to be dismounted; and finally, the sleeve and the ejector rod are pulled away from the workpiece, so that the part to be dismantled is separated from the workpiece. This demolish device compact structure, simple operation, assurance unit safety.

In one embodiment, the width of one end of the clamping seat close to the mounting seat is larger than that of the other end; the inner diameter of one end, close to the mounting seat, of the clamping seat is larger than that of the other end of the clamping seat.

In one embodiment, the adjusting mechanism further comprises a first positioning block convexly arranged on the ejector rod; the first positioning block is used for abutting against the inner wall of the clamping seat.

In one embodiment, the distance between adjacent gears is correspondingly matched with the distance between the pieces to be removed.

In one embodiment, a first step is arranged in one end of the mounting seat close to the clamping seat; the adjusting mechanism also comprises a second positioning block which is convexly arranged on the ejector rod; the second positioning block is used for abutting against the first step to limit the movement of the ejector rod.

In one embodiment, the positioning mechanism further comprises a fixing piece connected with one end of the mounting seat far away from the clamping seat; the adjusting mechanism also comprises a third positioning block which is convexly arranged on the ejector rod; the third positioning block is used for abutting against the fixing piece to limit the movement of the ejector rod.

In one embodiment, the sleeve further comprises a holding portion and a connecting portion connecting the holding portion; the gear is arranged on the holding part; the connecting part is used for abutting against the workpiece.

In one embodiment, the positioning mechanism further comprises a first elastic member; a lug is arranged in one end of the holding part connected with the connecting part, and a boss corresponding to the lug is arranged at one end of the mounting seat connected with the limiting part; one end of the first elastic piece is connected with the lug, and the other end of the first elastic piece is connected with the lug boss.

In one embodiment, the adjustment mechanism further comprises a second elastic member; one end of the second elastic piece is connected with one end, far away from the clamping seat, of the sleeve, and the other end of the second elastic piece is connected with one end, far away from the clamping seat, of the ejector rod.

In one embodiment, the securing mechanism further comprises a handle attached to the outside of the sleeve.

Drawings

Fig. 1 is a schematic structural view of a demolition apparatus according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of the demolition apparatus shown in FIG. 1;

figure 3 is an exploded view of the securing mechanism of the demolition apparatus shown in figure 2;

FIG. 4 is an exploded view of the positioning mechanism of the demolition apparatus shown in FIG. 2;

figure 5 is a cross-sectional view of the demolition apparatus of figure 1 inserted into a workpiece.

Reference is made to the accompanying drawings in which:

dismantling the device 100;

the fixing mechanism 10, the sleeve 11, the gear 110, the holding portion 111, the connecting portion 112, the handle 12, the fastener 13, the positioning mechanism 20, the mounting seat 21, the first step 211, the second step 212, the limiting member 22, the snap-fit seat 23, the latch 24, the first elastic member 25, and the fixing member 26;

the adjusting mechanism 30, the push rod 31, the pressing part 311, the handle part 312, the first connecting part 313, the second connecting part 314, the third connecting part 315, the first positioning block 32, the second positioning block 33, the third positioning block 34, the second elastic part 35, the workpiece 90 and the to-be-removed part 91.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 5, a demolition apparatus 100 according to an embodiment of the present invention includes a fixing mechanism 10, a positioning mechanism 20, and an adjusting mechanism 30; the fixing mechanism 10 includes a sleeve 11; the sleeve 11 is provided with a plurality of gears 110; the positioning mechanism 20 comprises an installation base 21 arranged in the sleeve 11, a limiting piece 22 connected with one side of the installation base 21, and a clamping base 23 connected with one end of the installation base 21; the adjusting mechanism 30 includes a rod 31 passing through the mounting base 21 and the engaging base 23. The demolition device 100 of the present invention inserts the clamping seat 23 into the workpiece 90 through the cooperation of the limiting member 22 and the gear 110 of the sleeve 11, and then moves the ejector rod 31 to force the clamping seat 23 to expand and abut against the to-be-demolished piece 91; finally, the sleeve 11 and the ejector rod 31 are pulled away from the workpiece 90, so that the member to be removed 91 is separated from the workpiece 90.

As shown in fig. 1 to 3, in the present embodiment, a plurality of pieces to be removed 91 are arranged in a workpiece 90, and the pieces to be removed 91 are mainly made of rubber and polytetrafluoroethylene, and deform when being extruded; optionally, workpiece 90 is a finger cuff sealing assembly. The fixing mechanism 10 includes a sleeve 11; the sleeve 11 is provided with a plurality of gears 110; the gears 110 are arranged at intervals along the axial direction of the sleeve 11. The distance between adjacent gears 110 is correspondingly matched with the distance between the pieces to be removed 91. Optionally, sleeve 11 also comprises a passage (not shown) for connecting gear 110; the gear 110 is four, and the removal of the to-be-removed piece 91 with different positions and sizes can be met by adjusting the gear 110. Further, the sleeve 11 further includes a holding portion 111 and a connecting portion 112 connecting the holding portion 111; the gear 110 is arranged on the holding part 111; the connecting portion 112 is for abutting the workpiece 90. The grip portion 111 has a larger diameter than the connecting portion 112. One end of the holding portion 111 close to the connecting portion 112 is provided with a texture to prevent slipping. A protrusion (not shown) is provided in one end of the holding portion 111 connected to the connecting portion 112. In order to facilitate the drawing of the sleeve 11, the fixing means 10 further comprise a handle 12 connected to the outside of the sleeve 11; optionally, there are two handles 12; the two handles 12 are respectively disposed at one end of the holding portion 111 away from the connecting portion 112. The fixing mechanism 10 further comprises a fastener 13 connected to one end of the sleeve 11; alternatively, the fastening member 13 is a nut cap, and the fastening member 13 is screwed to an end of the grip portion 111 away from the connecting portion 112.

Referring to fig. 2, the positioning mechanism 20 includes an installation base 21 disposed in the sleeve 11, a limiting member 22 connected to one side of the installation base 21, and a clamping base 23 connected to one end of the installation base 21; the limiting member 22 is matched with the gear 110 to fix the mounting seat 21 and the sleeve 11, and the depth of the accurate control connecting seat 23 inserted into the workpiece 90 is determined; the clamping seat 23 is used for abutting against a to-be-removed part 91 of the workpiece 90; optionally, a boss (not shown) of a projection of the holding portion 111 is disposed at one end of the mounting base 21 connected to the limiting member 22; a first step 211 is arranged in one end of the mounting seat 21 close to the clamping seat 23; a second step 212 is arranged in one end of the mounting seat 21 far away from the clamping seat 23. The stopper 22 is protruded from the sleeve 11 so as to move the stopper 22 and the mounting base 21 is slidably disposed on the sleeve 11. Furthermore, the clamping seat 23 is conical, and the width of one end of the clamping seat 23 close to the installation seat 21 is larger than that of the other end so that the clamping seat 23 can be inserted into the workpiece 90; the inside diameter of the snap seat 23 at one end close to the mounting seat 21 is larger than that at the other end. In order to further increase the contact surface with the workpiece 90, the positioning mechanism 20 further includes a latch 24 connected to the mounting seat 21, and the latch is disposed on a side of the latch seat 23 close to the mounting seat 21. The width of the latch 24 is the same as that of the end of the latch holder 23 close to the mounting seat 21. In order to fix the position of the limiting member 22, the positioning mechanism 20 further includes a first elastic member 25; one end of the first elastic member 25 is connected to the projection, and the other end is connected to the boss. In one embodiment, the positioning mechanism 20 further includes a fixing member 26 connected to an end of the mounting seat 21 away from the clamping seat 23; the fixing member 26 is used to abut against the fastening member 13 to prevent the mount 21 from falling off. During the use, remove locating part 22 and drive mount pad 21 and joint seat 23 and remove, adjust the position of joint seat 23 relative work piece 90, make joint seat 23 butt different and wait to demolish piece 91, simultaneously, mount pad 21 compression first elastic component 25 deformation.

In one embodiment, the adjusting mechanism 30 includes a rod 31 passing through the mounting base 21 and the clamping base 23; one end of the push rod 31 abuts against the clamping seat 23 to expand the clamping seat 23, and the other end of the push rod 31 is protruded from the sleeve 22. Optionally, the top rod 31 includes a pressing portion 311, a handle portion 312, and a first connection portion 313, a second connection portion 314, and a third connection portion 315 connected in sequence; the extrusion part 311 is connected to one end of the first connection part 313, the extrusion part 311 is slidably arranged in the clamping seat 23 to force the clamping seat 23 to expand and deform, and the shape of the extrusion part 311 is correspondingly matched with that of the clamping seat 23; the handle portion 312 protrudes from one end of the third connecting portion 315 to be pulled. The diameters of the first connection portion 313, the second connection portion 314, and the third connection portion 315 increase in order. According to the size of the member to be removed 91, the ejector rod 31 can be replaced to adapt to the removal work of the member to be removed 91 with different sizes, and the expansibility is good. Furthermore, the adjusting mechanism 30 further comprises a first positioning block 32 convexly arranged on the top rod 31; the first positioning block 32 is connected between the pressing part 311 and the first connecting part 313; the first positioning block 32 is used for abutting against the inner wall of the clamping seat 23; the width of the first positioning block 32 is larger than the inner diameter of the clamping seat 23 near one end of the mounting seat 21. The adjusting mechanism 30 further comprises a second positioning block 33 convexly arranged on the ejector rod 31; the second positioning block 33 is disposed between the first connecting portion 313 and the second connecting portion 314, and the second positioning block 33 is used for abutting against the first step 211 to limit the movement of the push rod 31, so as to precisely control the expanded size of the card connecting seat 23. The adjusting mechanism 30 further comprises a third positioning block 34 protruding from the top rod 31; the third positioning block 34 is disposed between the second connecting portion 314 and the third connecting portion 315, the third positioning block 34 is used for abutting against the fixing element 26 to limit the movement of the top rod 31, and meanwhile, the third positioning block 34 is used for abutting against the second step 212 to limit the movement of the top rod 31. In order to define the initial position of the bayonet socket 23, the adjusting mechanism 30 further comprises a second elastic member 35; one end of the second elastic element 35 is connected to one end of the sleeve 11 away from the clamping seat 23, and the other end is connected to one end of the push rod 31 away from the clamping seat 23. In use, the push rod 31 is moved to make the pressing portion 311 of the push rod 31 abut against the mounting seat 21 to force the mounting seat 21 to expand and deform, and the handle portion 312 compresses the second elastic member 35 to deform.

When the dismounting device 100 is used, after one end of the connecting part 112 is abutted to the workpiece 90, the limiting member 22 is moved to the corresponding gear 110 according to the to-be-dismounted member 91 to be dismounted, so that the clamping seat 23 is moved to the corresponding to-be-dismounted member 91, as shown in fig. 5; then, the ejector rod 31 is moved towards the workpiece 90 direction, so that the pressing part 311 forces the clamping seat 23 to expand and deform until the second positioning block 32 abuts against the first step 211, and at the moment, the clamping seat 23 is tightly connected with the belt removing piece 91; finally, the handle portion 312 of the jack rod 31 and the handle 12 are gripped and pulled in a direction away from the workpiece 90, so that the present demolition apparatus 100 is detached from the workpiece 90, and the workpiece 91 to be demolished abutting against the chuck 23 is pulled out of the workpiece. The dismounting device 100 has small volume and large applicable working space range, and is particularly suitable for narrow space; the processing cost is low, and the device can be repeatedly used; effectively preventing the tool from damaging the workpiece 90.

The demolition device 100 of the present invention inserts the clamping seat 23 into the workpiece 90 through the cooperation of the limiting member 22 and the gear 110 of the sleeve 11, and then moves the ejector rod 31 to force the clamping seat 23 to expand and abut against the to-be-demolished piece 91; finally, the sleeve 11 and the ejector rod 31 are pulled away from the workpiece 90, so that the member to be removed 91 is separated from the workpiece 90. This demolish device 100 compact structure, simple operation, assurance unit safety.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A dismounting device is characterized by comprising a fixing mechanism, a positioning mechanism and an adjusting mechanism; the fixing mechanism comprises a sleeve; the sleeve is provided with a plurality of gears, and the gears are arranged at intervals in a staggered manner along the axial direction of the sleeve; the positioning mechanism comprises an installation seat arranged in the sleeve, a limiting part connected with one side of the installation seat and a clamping seat connected with one end of the installation seat; the limiting piece is matched with the gear to fix the mounting seat and the sleeve; the clamping seat is used for abutting against a to-be-removed part of a workpiece; the adjusting mechanism comprises an ejector rod penetrating through the mounting seat and the clamping seat; one end of the ejector rod is used for being abutted to the clamping seat to enable the clamping seat to expand, and the other end of the ejector rod is convexly arranged on the sleeve.

2. The demolition arrangement according to claim 1 wherein the width of the bayonet mount is greater at one end proximate the mount than at the other end; the inner diameter of one end, close to the mounting seat, of the clamping seat is larger than that of the other end of the clamping seat.

3. The demolition apparatus according to claim 2 wherein the adjustment mechanism further comprises a first positioning block protruding from the ram; the first positioning block is used for abutting against the inner wall of the clamping seat.

4. The demolition arrangement according to claim 1, wherein the spacing of adjacent gears correspondingly matches the spacing of the pieces to be demolished.

5. The demolition arrangement according to claim 1 wherein the mount has a first step in an end proximate the bayonet mount; the adjusting mechanism also comprises a second positioning block which is convexly arranged on the ejector rod; the second positioning block is used for abutting against the first step to limit the movement of the ejector rod.

6. The demolition arrangement according to claim 1 wherein the positioning mechanism further comprises a fixture connected to an end of the mount remote from the chuck; the adjusting mechanism also comprises a third positioning block which is convexly arranged on the ejector rod; the third positioning block is used for abutting against the fixing piece to limit the movement of the ejector rod.

7. The demolition apparatus according to claim 1 wherein the sleeve further comprises a grip portion and a connecting portion connecting the grip portion; the gear is arranged on the holding part; the connecting part is used for abutting against the workpiece.

8. The demolition arrangement according to claim 7 wherein the positioning mechanism further comprises a first resilient member; a lug is arranged in one end of the holding part connected with the connecting part, and a boss corresponding to the lug is arranged at one end of the mounting seat connected with the limiting part; one end of the first elastic piece is connected with the lug, and the other end of the first elastic piece is connected with the lug boss.

9. The demolition arrangement according to claim 1 wherein the adjustment mechanism further comprises a second resilient member; one end of the second elastic piece is connected with one end, far away from the clamping seat, of the sleeve, and the other end of the second elastic piece is connected with one end, far away from the clamping seat, of the ejector rod.

10. The demolition apparatus according to claim 1 wherein the securing mechanism further comprises a handle connected to an outside of the sleeve.