CN114800388B - Dismounting device - Google Patents
Dismounting device Download PDFInfo
- Publication number
- CN114800388B CN114800388B CN202210569269.6A CN202210569269A CN114800388B CN 114800388 B CN114800388 B CN 114800388B CN 202210569269 A CN202210569269 A CN 202210569269A CN 114800388 B CN114800388 B CN 114800388B
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- Prior art keywords
- main body
- hole
- steam generator
- lining plate
- supporting arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Automatic Assembly (AREA)
Abstract
The application relates to a dismounting device, which comprises a plurality of dismounting structures, wherein the dismounting structures comprise: one end of the main body is used for being inserted into a bolt hole of the steam generator; the limiting block is connected with the main body and protrudes out of the main body along the radial direction of the main body; one end of the supporting arm can rotate around the main body, one end of the supporting arm deviating from the main body protrudes out of the main body along the radial direction of the main body, and the supporting arm is used for limiting the liner plate to move towards the direction deviating from the steam generator. When the dismounting device is used for mounting the lining plate, one end of the main body is inserted into the bolt hole, and one end of the supporting arm, far away from the main body, limits the movement of the lining plate, so that the lining plate is prevented from falling. The workers rotate the lining plate, adjust the position of the lining plate, and connect the lining plate with the steam generator by adopting bolts. The worker only needs to lift the lining board to be tightly attached to the steam generator, and when the lining board is limited by the dismounting structure, the worker can withdraw from the mounting site, and the worker is left to rotate the lining board, so that the operation is simple and convenient.
Description
Technical Field
The application relates to the technical field of disassembly tools, in particular to a disassembly and assembly device.
Background
In order to facilitate overhaul of the inside of the steam generator, the manhole is formed in the steam generator, so that workers can conveniently enter the inside of the steam generator through the manhole, and overhaul of the inside of the steam generator is facilitated. However, when the steam generator works normally, the manhole needs to be plugged by installing a sealing structure so as to ensure that the steam generator can work normally; when overhauling, then need dismantle seal structure, make things convenient for the workman to get into steam generator inside by the manhole.
Currently, the sealing structure includes a liner plate, a sealing gasket, and a screw. When installing seal structure, need many workman to lift the welt to manhole department, another workman observes the relative position between the bolt hole of welt and steam generator's the bolt hole, through this workman and many workman's cooperation of lifting the welt to adjust the position of welt, make the bolt hole of welt correspond with steam generator's bolt hole. And a sealing gasket is placed between the lining plate and the steam generator, and finally the lining plate, the sealing gasket and the steam generator are connected through screws, so that the purpose of sealing the manhole by the sealing structure is realized, and the steps are opposite when the sealing structure is disassembled.
However, the time required for lifting and adjusting the lining plate by a plurality of workers is long, so that on one hand, the irradiation time of the workers is prolonged, the irradiation metering is large, and the physical health of the workers is endangered; on the other hand, because the lining plate is heavy, the lifting time is long, and the labor is not enough, the lining plate can be possibly dropped, so that the lining plate collides with the steam generator, and the steam generator is damaged.
Disclosure of Invention
Based on the above, the time required for lifting and adjusting the lining board for a plurality of workers is longer, so that on one hand, the irradiation time of the workers is prolonged, the irradiation metering is larger, and the physical health of the workers is endangered; on the other hand, because the lining plate is heavier, lifting time is long and workers are not strong enough, and the lining plate is likely to fall down to collide with the steam generator, so that the problem of damaging the steam generator is solved, and the dismounting device is provided.
An embodiment of the application provides a dismounting device, which comprises a plurality of dismounting structures, wherein the dismounting structures comprise:
one end of the main body is used for being inserted into a bolt hole of the steam generator;
the limiting block is connected with the main body and protrudes out of the main body along the radial direction of the main body so as to limit the length of the main body extending into the bolt hole; and
the support arm, the one end of support arm can rotate around the main part, and the radial protrusion main part of support arm along the main part is deviate from the one end of main part to be used for restricting the welt and remove towards the direction that deviates from steam generator.
When the dismounting device is used for mounting the lining plate, the steam generator is provided with a plurality of bolt holes, and the plurality of bolt holes are annularly arranged. A plurality of dismounting structures are uniformly arranged at intervals in the bolt holes, and one end of a main body of each dismounting structure is inserted into each bolt hole. Because the stopper is connected with the main part, and the radial protrusion main part of stopper along the main part to when the main part inserts in the bolt hole, the stopper can with steam generator butt, thereby restrict the length that the main part stretched into in the bolt hole. The worker lifts the lining plate, so that the lining plate is clung to the steam generator, and the manhole is plugged. Because the one end of support arm can rotate around the main part to after welt and steam generator hugs closely, through the one end and the main part rotation of support arm, the one end that the main part was kept away from to the drive support arm rotates, makes the one end that the main part was kept away from to the support arm be in the welt one side that deviates from steam generator, and the welt is located between the one end that the main part was kept away from to the support arm and steam generator this moment, and the one end that the main part was kept away from to the support arm is used for restricting the welt and removes towards the direction that deviates from steam generator, prevents that the welt from falling. Because the main part of a plurality of dismouting structures inserts in a plurality of bolt holes at even interval to can follow the circumference of welt with the welt restriction between the one end that the main part was kept away from to the support arm and steam generator, the position of welt then is restricted by a plurality of dismouting structures like this, need not the workman and lifts the welt always, shortens workman's the time of shining. After the position of the lining plate is limited by the plurality of dismounting structures, only one worker is required to rotate the lining plate, the peripheral surface of the lining plate rotates among the plurality of dismounting structures, so that the position of the lining plate can be adjusted, a first threaded hole formed in the lining plate is aligned with a second threaded hole formed in the steam generator, and then bolts penetrate through the first threaded hole and the second threaded hole to connect the lining plate with the steam generator. In the process, a worker only needs to lift the lining plate to be tightly attached to the steam generator, when the position of the lining plate is limited by a plurality of dismounting structures, the mounting site can be withdrawn, one worker is left to rotate the lining plate and connect the lining plate with the steam generator, the operation is simple and convenient, and the mounting time is shortened. The disassembly process is then reversed.
In one embodiment, the dismounting structure further comprises: and the rotating part is positioned between the supporting arm and the limiting block, and is rotationally connected with the main body, and the outer peripheral surface of the rotating part is used for being in rolling fit with the outer peripheral surface of the lining plate.
In one embodiment, the main body has a mounting protrusion protruding radially, and the support arm and the rotating member are respectively mounted on both sides of the mounting protrusion.
In one embodiment, the dismounting structure further comprises a limiting pin, the supporting arm is provided with a first hole, and the limiting pin can penetrate through the first hole;
the main body is provided with a second hole, and the limiting pin can extend into or move out of the second hole so as to lock or release the supporting arm, wherein when the limiting pin sequentially extends into the first hole and the second hole, the supporting arm is used for limiting the movement of the lining plate in a direction away from the steam generator;
the main body is provided with a third hole, and the limiting pin can extend into or move out of the third hole so as to lock or release the supporting arm, wherein when the limiting pin sequentially extends into the first hole and the third hole, the supporting arm releases the limiting lining plate.
In one embodiment, the limiting pin comprises a pin body and a baffle plate, one end of the pin body penetrates through the first hole, and one end of the pin body penetrating through the first hole is connected with the baffle plate.
In one embodiment, the end of the support arm facing away from the main body is provided with balls for rolling engagement with the backing plate.
In one of the embodiments of the present application,
one end of the main body, which is inserted into the bolt hole, is provided with a mounting hole, and the hole wall of the mounting hole is provided with a positioning through hole;
the dismouting structure still includes:
the expansion claw is positioned in the positioning through hole and is of an elastic structure with elastic force; and
the stretching cone rod is located inside the mounting hole, the stretching cone rod comprises a first part and a second part which are connected, the first part penetrates out of the main body along the direction of extending out of the bolt hole and can move along the axial direction of the main body, the second part is arranged at one end of the first part, facing the main body, of the second part, and the outer diameter of the second part is gradually increased along the direction of the second part, facing away from the first part.
In one embodiment, the expansion claw comprises:
elastic supporting claws, which are positioned in the positioning through holes; and
the soft cushion is connected with one side of the elastic supporting claw, which is away from the stretching cone rod.
In one embodiment, the dismounting structure further comprises a driving part, wherein the driving part is connected with the part of the first part penetrating out of the main body and is used for driving the first part to move along the axial direction of the main body.
In one embodiment, the first portion extends beyond the end of the body and is threaded;
the driving part comprises a stretching nut and a spanner, and the stretching nut is in threaded fit with the first part; the wrench drives the draw nut in rotation, thereby causing the first portion to move axially of the body.
Drawings
FIG. 1 is a schematic diagram of a connection relationship among a dismounting device, a lining board and a steam generator in an embodiment;
FIG. 2 is a schematic view of the assembly and disassembly structure of FIG. 1;
FIG. 3 is a schematic view of the limiting pin in FIG. 2;
FIG. 4 is a schematic drawing of the structure of the stretching screw and the expansion claw;
FIG. 5 is a schematic view of the second hole, the third hole and the mounting boss;
fig. 6 is a schematic diagram showing the connection relationship among the main body, the stretching cone rod and the expansion claw.
Reference numerals illustrate:
the dismounting structure 100;
a main body 110; mounting projections 111; a second hole 101; a third aperture 102;
a stopper 120;
a support arm 130;
a rotating part 140;
a stopper pin 150; a pin body 151; a baffle 152;
a bullseye bearing 160; a ball 161;
expansion claw 170; elastic support claws 171; a cushion 172;
stretching the taper rod 180; a first portion 181; a second portion 182;
stretching the nut 191;
a steam generator 200;
bolt holes 201;
a liner 210; a first threaded bore 202.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 and 2, an embodiment of the application provides a dismounting device, which includes a plurality of dismounting structures 100, wherein the dismounting structures 100 include a main body 110, a limiting block 120 and a supporting arm 130.
One end of the main body 110 is for insertion into the bolt hole 201 of the steam generator 200. The stopper 120 is coupled with the body 110, and the stopper 120 protrudes out of the body 110 in a radial direction of the body 110 to limit a length of the body 110 protruding into the bolt hole 201. One end of the support arm 130 is rotatable about the main body 110, and one end of the support arm 130 facing away from the main body 110 protrudes from the main body 110 in a radial direction of the main body 110 and serves to restrict the movement of the liner 210 in a direction facing away from the steam generator 200.
When the dismounting device is used for mounting the lining plate 210, the steam generator 200 is provided with a plurality of bolt holes 201, and the plurality of bolt holes 201 are annularly arranged. The plurality of attachment/detachment structures 100 are provided at regular intervals in the bolt hole 201, and one end of the main body 110 of the attachment/detachment structure 100 is inserted into the bolt hole 201. Since the stopper 120 is connected with the body 110 and the stopper 120 protrudes out of the body 110 in a radial direction of the body 110, when the body 110 is inserted into the bolt hole 201, the stopper 120 can be abutted with the steam generator 200, thereby limiting a length of the body 110 extending into the bolt hole 201. The worker lifts the liner plate 210 so that the liner plate 210 is closely attached to the steam generator 200 to close the manhole. Because the one end of the support arm 130 can rotate around the main body 110, when the liner plate 210 is tightly attached to the steam generator 200, the one end of the support arm 130 rotates with the main body 110 to drive the one end of the support arm 130 away from the main body 110 to rotate, so that the one end of the support arm 130 away from the main body 110 is located at one side of the liner plate 210 away from the steam generator 200, at this time, the liner plate 210 is located between the one end of the support arm 130 away from the main body 110 and the steam generator 200, and the one end of the support arm 130 away from the main body 110 is used for limiting the liner plate 210 to move towards the direction away from the steam generator 200, so as to prevent the liner plate 210 from falling. Since the main bodies 110 of the plurality of dismounting structures 100 are inserted into the plurality of bolt holes 201 at uniform intervals, the lining plate 210 can be limited between one end of the supporting arm 130 far away from the main bodies 110 and the steam generator 200 along the circumferential direction of the lining plate 210, so that the position of the lining plate 210 is limited by the plurality of dismounting structures 100, the lining plate 210 is not required to be lifted all the time by a worker, and the illuminated time of the worker is shortened. After the positions of the liner plates 210 are limited by the plurality of dismounting structures 100, only one worker is required to rotate the liner plates 210, so that the outer peripheral surfaces of the liner plates 210 rotate among the plurality of dismounting structures 100, the positions of the liner plates 210 can be adjusted, the first threaded holes 202 formed in the liner plates 210 are aligned with the second threaded holes (not shown) formed in the steam generator 200, and then bolts penetrate through the first threaded holes 202 and the second threaded holes to connect the liner plates 210 with the steam generator 200. In this process, the worker only needs to lift the lining board 210 to be tightly attached to the steam generator 200, and when the position of the lining board 210 is limited by the plurality of dismounting structures 100, the worker can withdraw from the installation site, leave a worker to rotate the lining board 210 and connect the lining board 210 with the steam generator 200, and the operation is simple and convenient, and the installation time is shortened. The disassembly process is then reversed.
In the present application, the number of the limiting blocks 120 is two, and the limiting blocks 120 are uniformly spaced along the circumferential direction of the main body 110, so that the two limiting blocks 120 can be tightly attached to the steam generator 200 along the same direction, and the circumferential stress of the main body 110 is stable, so as to prevent the main body 110 from shaking during use.
Referring to fig. 2, in an embodiment, the dismounting structure 100 further includes a rotating portion 140. The rotating portion 140 is located between the supporting arm 130 and the limiting block 120, and the rotating portion 140 is rotatably connected to the main body 110, and an outer peripheral surface of the rotating portion 140 is configured to be in rolling fit with an outer peripheral surface of the lining board 210.
Specifically, since the rotating part 140 is located between the support arm 130 and the stopper 120, the rotating part 140 is rotatably connected with the main body 110, and the outer circumferential surface of the rotating part 140 is in rolling engagement with the outer circumferential surface of the lining plate 210, so that when a worker rotates the lining plate 210, the outer circumferential surface of the lining plate 210 is in rolling engagement with the outer circumferential surface of the rotating part 140, so that sliding friction between the outer circumferential surface of the lining plate 210 and the main body 110 is converted into rolling friction between the outer circumferential surface of the lining plate 210 and the rotating part 140, thereby reducing friction force, and the worker can rotate the lining plate 210 without effort, thereby adjusting the position of the lining plate 210.
Referring to fig. 2, in an embodiment, the main body 110 has a mounting protrusion 111 protruding radially, and the support arm 130 and the rotating portion 140 are respectively mounted on two sides of the mounting protrusion 111, so as to facilitate positioning of the support arm 130 and the rotating portion 140, and facilitate mounting of the support arm 130 and the rotating portion 140.
Referring to fig. 2 and 5, in an embodiment, the dismounting structure 100 further includes a limiting pin 150, the supporting arm 130 is provided with a first hole (not shown), and the limiting pin 150 can pass through the first hole. The main body 110 is provided with a second hole 101, and the limiting pin 150 can extend into or out of the second hole 101 to lock or release the supporting arm 130, wherein when the limiting pin 150 sequentially extends into the first hole and the second hole 101, the supporting arm 130 is used for limiting the movement of the liner 210 in a direction away from the steam generator 200. The main body 110 is further provided with a third hole 102, and the limiting pin 150 can extend into or out of the third hole 102 to lock or release the supporting arm 130, wherein when the limiting pin 150 sequentially extends into the first hole and the third hole 102, the supporting arm 130 releases the limiting lining plate 210.
Specifically, before the worker lifts the liner plate 210 to attach the liner plate 210 to the steam generator 200, the limiting pin 150 is inserted through the first hole and into the third hole 102 to lock the support arm 130, so that the support arm 130 cannot rotate with the main body 110. At this time, the end of the support arm 130 remote from the main body 110 protrudes outward in the radial direction of the liner plate 210, so that when a worker lifts the liner plate 210 to cling the liner plate 210 to the steam generator 200, the end of the support arm 130 remote from the main body 110 does not hinder the liner plate 210 from clinging to the steam generator 200. When the lining plate 210 is tightly attached to the steam generator 200, the limiting pin 150 moves out of the third hole 102, and the supporting arm 130 is released, so that the supporting arm 130 can rotate relative to the main body 110, and when the supporting arm 130 rotates until the first hole is opposite to the second hole 101, the limiting pin 150 passes through the first hole and stretches into the second hole 101 to lock the supporting arm 130, and thus the supporting arm 130 cannot rotate with the main body 110. At this time, the end of the support arm 130 remote from the main body 110 protrudes inward in the radial direction of the liner plate 210 for restricting the movement of the liner plate 210 in a direction away from the steam generator 200, preventing the liner plate 210 from falling. The limiting pin 150 passes through the first hole and is respectively matched with the second hole 101 and the third hole 102, so that the liner plate 210 is limited to move or be released from being limited in the direction away from the steam generator 200, and the liner plate 210 is convenient to install.
Referring to fig. 5, in the present embodiment, the mounting boss 111 is provided with a second hole 101 and a third hole 102.
Referring to fig. 2 and 3, in an embodiment, the limiting pin 150 includes a pin body 151 and a baffle 152, one end of the pin body 151 passes through the first hole, and one end of the pin body 151 passing through the first hole is connected to the baffle 152.
Specifically, since one end of the pin body 151 passing through the first hole is connected with the barrier 152, the barrier 152 can block the pin body 151 from passing through the first hole in a direction away from the steam generator 200, so that the stopper pin 150 is connected with the support arm 130 through the barrier 152, without separately carrying the stopper pin 150 when in use. And, when the stopper pin 150 is engaged with the second hole 101 or the third hole 102, the blocking plate 152 can be extended into or removed from the second hole 101 to lock or release the support arm 130.
Referring to fig. 2 and 3, in an embodiment, the support arm 130 is tightly attached to the main body 110, a chute (not shown) is formed on a side of the main body 110 tightly attached to the support arm 130, and the second hole 101 and the third hole 102 are respectively formed at a bottom of the chute, and the chute is used for accommodating the baffle 152.
Specifically, since the supporting arm 130 is tightly attached to the main body 110, a sliding groove is formed on the side of the main body 110 and the supporting arm 130, and when the limiting pin 150 moves out of the second hole 101 or the third hole 102, that is, the baffle 152 moves out of the second hole 101 or the third hole 102, the baffle 152 is located in the sliding groove and can move in the sliding groove.
In the present embodiment, the mounting boss 111 is provided with a slide groove.
Referring to fig. 2 and 3, in an embodiment, the dismounting structure 100 further includes a first elastic member (not shown), one end of the first elastic member is connected to the baffle 152, the other end of the first elastic member is connected to the support arm 130, and an elastic force of the first elastic member is used to drive the baffle 152 to extend into the second hole 101 or the third hole 102.
Specifically, since one end of the first elastic member is connected to the shutter 152 and the other end is connected to the support arm 130, a worker may pull the pin body 151 such that the shutter 152 moves out of the second hole 101 or the third hole 102 against the elastic force of the first elastic member. When the baffle 152 extends into the second hole 101 or the third hole 102, the elastic force of the first elastic member drives the baffle 152 to extend into the second hole 101 or the third hole 102, so that the baffle 152 is not easy to pass out of the second hole 101 or the third hole 102, and the support arm 130 is prevented from rotating during use.
Referring to fig. 2 and 3, in an embodiment, a ball 161 is disposed at an end of the support arm 130 facing away from the main body 110, and the ball 161 is used for rolling fit with the liner 210, so that during rotation of the liner 210, one side of the liner 210 facing away from the steam generator 200 is rolling fit with the ball 161, and sliding friction between one side of the liner 210 facing away from the steam generator 200 and the support arm 130 is converted into rolling friction between one side of the liner 210 facing away from the steam generator 200 and the ball 161, so that a worker can push the liner 210 conveniently, and damage to one side of the liner 210 facing away from the steam generator 200 due to excessive friction can be prevented.
In this embodiment, the dismounting structure 100 further includes a bullseye bearing 160, where the bullseye bearing 160 is disposed at an end of the support arm 130 facing away from the main body 110, and the bullseye bearing 160 has a ball 161, and the bullseye bearing 160 is disposed to facilitate installation of the ball 161.
Referring to fig. 2 and 4, in an embodiment, a mounting hole (not shown) is formed at one end of the main body 110 inserted into the bolt hole 201, and a positioning through hole (not shown) is formed at a hole wall of the mounting hole. The dismounting structure 100 further comprises an expansion claw 170 and a stretching awl bar 180. The expansion claw 170 is located in the positioning through hole, and the expansion claw 170 is an elastic structure with elastic force. The stretching cone rod 180 is located in the mounting hole, the stretching cone rod 180 comprises a first portion 181 and a second portion 182 which are connected, one end of the first portion 181 extends out of the main body 110 and can move along the axial direction of the main body 110, the second portion 182 is arranged at one end, facing the main body 110, of the first portion 181, and the outer diameter of the second portion 182 is gradually increased along the direction, facing away from the first portion 181, of the second portion 182.
Specifically, since the expansion claw 170 is located in the positioning through hole, the stretching awl rod 180 is located in the mounting hole, so that the stretching awl rod 180 can be opposed to the expansion claw 170. The stretching awl 180 includes a first portion 181 and a second portion 182 that are connected, and the first portion 181 passes out of the main body 110 in a direction extending out of the bolt hole 201, such that the first portion 181 or the second portion 182 is opposed to the expansion pawl 170 when the first portion 181 moves in the axial direction of the main body 110. Because the outer diameter of the second portion 182 gradually increases along the direction that the second portion 182 deviates from the first portion 181, when the expansion claw 170 is opposite to the second portion 182, the second portion 182 supports the expansion claw 170, so that the expansion claw 170 extends out of the positioning through hole and is clung to the hole wall of the bolt hole 201, and further the main body 110 is clung to the hole wall of the bolt hole 201, so that the main body 110 is prevented from falling out of the bolt hole 201 when the dismounting structure 100 is used. After the use is finished, the first portion 181 moves along the axial direction of the main body 110, so that the expansion claw 170 is opposite to the first portion 181, and the expansion claw 170 is of an elastic structure with elastic force, so that after the expansion claw 170 cannot be supported by the second portion 182, the expansion claw 170 moves towards the direction away from the hole wall of the bolt hole 201 due to the elastic force of the expansion claw 170, and is separated from the hole wall of the bolt hole 201, and the dismounting structure 100 is convenient to take out from the bolt hole 201.
Referring to fig. 2 and 4, in one embodiment, the expansion claw 170 includes a resilient claw 171 and a cushion 172. The elastic supporting claw 171 is positioned at the positioning through hole. The cushion 172 is connected to the side of the elastic stay 171 facing away from the stretching awl 180, so that the cushion 172 is in close contact with the wall of the bolt hole 201. Because the soft pad 172 is made of soft material, when being clung to the hole wall of the bolt hole 201, the hole wall of the bolt hole 201 is not easy to be damaged.
Referring to fig. 2 and 6, in an embodiment, the dismounting structure 100 further includes a driving portion, where the driving portion is connected to a portion of the first portion 181 penetrating the main body 110, and is used to drive the first portion 181 to move along the axial direction of the main body 110, so that the expansion claw 170 is opposite to the first portion 181 or the second portion 182 of the stretching cone 180. When the expansion claw 170 is opposite to the first portion 181, the expansion claw 170 is separated from the hole wall of the bolt hole 201, so that the main body 110 can be conveniently moved out of the bolt hole 201; when the expansion claw 170 is opposite to the second portion 182, the expansion claw 170 is tightly attached to the hole wall of the bolt hole 201, so that the main body is fixed in the bolt hole 201, and the dismounting structure 100 is prevented from falling out of the bolt hole 201 in use.
In one embodiment, the end of the first portion 181 extending out of the body 110 is threaded. The driving part includes a tension nut 191 and a wrench (not shown), and the tension nut 191 is screw-engaged with the first portion 181. The spanner drives the tension nut 191 to rotate, thereby moving the first portion 181 in the axial direction of the main body 110.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (9)
1. The utility model provides a dismouting device, its characterized in that includes a plurality of dismouting structures, dismouting structure includes:
a main body, one end of which is inserted into a bolt hole of the steam generator;
the limiting block is connected with the main body and protrudes out of the main body along the radial direction of the main body so as to limit the length of the main body extending into the bolt hole; and
one end of the supporting arm can rotate around the main body, and one end of the supporting arm, which is away from the main body, protrudes out of the main body along the radial direction of the main body and is used for limiting the movement of the lining plate in the direction away from the steam generator;
and the rotating part is positioned between the supporting arm and the limiting block, and is rotationally connected with the main body, and the outer peripheral surface of the rotating part is used for being in rolling fit with the outer peripheral surface of the lining plate.
2. The dismounting device as claimed in claim 1, wherein the main body has a mounting projection projecting radially, and the support arm and the rotating member are mounted on both sides of the mounting projection, respectively.
3. The dismounting device according to any one of claims 1 and 2, characterized in that the dismounting structure further comprises a stopper pin, the support arm is provided with a first hole, and the stopper pin can pass through the first hole;
the main body is provided with a second hole, the limiting pin can extend into or out of the second hole so as to lock or release the supporting arm, wherein when the limiting pin sequentially extends into the first hole and the second hole, the supporting arm is used for limiting the movement of the lining plate in a direction deviating from the steam generator;
the main body is provided with a third hole, and the limiting pin can extend into or out of the third hole so as to lock or release the supporting arm, wherein when the limiting pin sequentially extends into the first hole and the third hole, the supporting arm releases the limiting lining plate.
4. A mounting and dismounting device as claimed in claim 3, wherein the stopper pin includes a pin body and a shutter, one end of the pin body passes through the first hole, and one end of the pin body passing through the first hole is connected to the shutter.
5. A dismounting device as claimed in any one of claims 1 and 2, wherein an end of the support arm facing away from the main body is provided with balls for rolling engagement with the backing plate.
6. A dismounting device as claimed in any one of claims 1 and 2, wherein,
one end of the main body, which is inserted into the bolt hole, is provided with a mounting hole, and the hole wall of the mounting hole is provided with a positioning through hole;
the dismounting structure further comprises:
the expansion claw is positioned in the positioning through hole and is of an elastic structure with elastic force; and
the stretching cone rod is located in the mounting hole and comprises a first portion and a second portion which are connected, one end of the first portion stretches out of the main body and can move along the axial direction of the main body, the second portion is arranged at one end of the first portion, which faces towards the main body, and the second portion faces away from the first portion, and the outer diameter of the second portion is gradually increased.
7. The dismounting device of claim 6, wherein the expansion claw comprises:
the elastic supporting claw is positioned in the positioning through hole; and
the soft cushion is connected with one side of the elastic supporting claw, which is away from the stretching cone rod.
8. The removing and installing device according to claim 6, wherein the removing and installing structure further includes a driving portion connected to a portion of the first portion penetrating the main body for driving the first portion to move in an axial direction of the main body.
9. The removal and attachment device of claim 8, wherein an end of the first portion extending out of the body is threaded;
the driving part comprises a stretching nut and a spanner, and the stretching nut is in threaded fit with the first part; the wrench drives the draw nut to rotate, thereby causing the first portion to move in an axial direction of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210569269.6A CN114800388B (en) | 2022-05-24 | 2022-05-24 | Dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210569269.6A CN114800388B (en) | 2022-05-24 | 2022-05-24 | Dismounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114800388A CN114800388A (en) | 2022-07-29 |
| CN114800388B true CN114800388B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210569269.6A Active CN114800388B (en) | 2022-05-24 | 2022-05-24 | Dismounting device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862906A (en) * | 2015-12-10 | 2017-06-20 | 核动力运行研究所 | Steam generator manhole cover is dismounted and positioner |
| CN210817555U (en) * | 2019-09-27 | 2020-06-23 | 德阳平安重型机械设备制造有限公司 | End face hole machining tool for steam turbine bearing box |
| CN212526879U (en) * | 2020-05-04 | 2021-02-12 | 江西省信航航空科技有限公司 | Frock clamp on merry go round machine |
| CN214135651U (en) * | 2020-10-12 | 2021-09-07 | 上海瑞系自动化科技有限公司 | Pressing mechanism |
| CN114274083A (en) * | 2022-03-01 | 2022-04-05 | 氢山(北京)氢内燃机技术研究院有限公司 | Tool for assembling hydrogen internal combustion engine system |
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2022
- 2022-05-24 CN CN202210569269.6A patent/CN114800388B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862906A (en) * | 2015-12-10 | 2017-06-20 | 核动力运行研究所 | Steam generator manhole cover is dismounted and positioner |
| CN210817555U (en) * | 2019-09-27 | 2020-06-23 | 德阳平安重型机械设备制造有限公司 | End face hole machining tool for steam turbine bearing box |
| CN212526879U (en) * | 2020-05-04 | 2021-02-12 | 江西省信航航空科技有限公司 | Frock clamp on merry go round machine |
| CN214135651U (en) * | 2020-10-12 | 2021-09-07 | 上海瑞系自动化科技有限公司 | Pressing mechanism |
| CN114274083A (en) * | 2022-03-01 | 2022-04-05 | 氢山(北京)氢内燃机技术研究院有限公司 | Tool for assembling hydrogen internal combustion engine system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114800388A (en) | 2022-07-29 |
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