CN114750106A - Shaft sleeve dismantling tool - Google Patents
Shaft sleeve dismantling tool Download PDFInfo
- Publication number
- CN114750106A CN114750106A CN202110021686.2A CN202110021686A CN114750106A CN 114750106 A CN114750106 A CN 114750106A CN 202110021686 A CN202110021686 A CN 202110021686A CN 114750106 A CN114750106 A CN 114750106A
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- Prior art keywords
- support
- clamping
- shaft sleeve
- bracket
- rod
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- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 230000005484 gravity Effects 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000003351 stiffener Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
Abstract
The application discloses axle sleeve demolishs instrument belongs to oil gas transmission technical field. This axle sleeve extracting tool includes: support, heating resistor silk, joint subassembly and afterburning subassembly. The clip assembly may include: the adjusting plate and the plurality of clamping pieces; the force application assembly may include: stress application pole, protruding structure and weight. When the axle sleeve that cup joints on the pump shaft in the centrifugal pump is demolishd to needs adoption axle sleeve demolishs the instrument, can heat this axle sleeve of waiting to demolish through the heating resistor silk in the support, then the position of every joint spare in the joint subassembly of adjustment and the first end connection of support, make the one end of every joint spare can keep away from the one end butt of support with the axle sleeve of waiting to demolish, make the support receive the effort of direction for being close to stiffener one side through afterburning subassembly at last, can dismantle the axle sleeve of waiting to demolish from the pump shaft through this effort. The efficiency when the axle sleeve is dismantled from the pump shaft is effectual improved.
Description
Technical Field
The application relates to the technical field of oil and gas transmission, in particular to a shaft sleeve dismantling tool.
Background
In the oil and gas transmission process, a centrifugal pump can be generally adopted to provide enough power for the medium to be conveyed. The centrifugal pump may generally comprise: the pump comprises a pump shaft, a shaft sleeve sleeved on the pump shaft and a sealing material positioned between the pump shaft and the shaft sleeve.
After a centrifugal pump is used for a long time, sealing materials in the centrifugal pump are worn to cause the sealing failure of the centrifugal pump, so that the sealing materials in the centrifugal pump need to be replaced periodically. However, after the centrifugal pump is used for a long time, if the abrasion of the shaft sleeve in the centrifugal pump is severe, the sealing material between the shaft sleeve and the pump shaft may not play an effective sealing role any more, and the shaft sleeve in the centrifugal pump needs to be dismounted and then repaired.
However, after the shaft sleeve in the centrifugal pump is used for a long time, rust scale generated on the shaft sleeve is serious, and the shaft sleeve is difficult to detach from the pump shaft. In the related art, the shaft sleeve to be detached can only be knocked by a hand hammer, so that the shaft sleeve is detached from the pump shaft after being damaged. However, when the shaft sleeve to be removed is knocked by a hand hammer, the shaft sleeve is very easy to be seriously damaged and scrapped, the pump shaft can be damaged, even the pump shaft can be bent, and after the shaft sleeve is detached from the pump shaft, the pump shaft is required to be bent and corrected. Therefore, the shaft sleeve is not efficiently detached from the pump shaft at present.
Disclosure of Invention
The embodiment of the application provides a shaft sleeve removing tool. The problem of prior art with the axle sleeve follow pump shaft dismantlement efficiency lower can be solved, technical scheme as follows:
there is provided a sleeve remover comprising:
a bracket having a first through-hole, the bracket configured to: the shaft sleeve to be disassembled is sleeved with the first through hole;
the heating resistance wire is positioned in the first through hole in the bracket and fixedly connected with the bracket, and the heating resistance wire spirally extends in the first through hole;
a clamping assembly, the clamping assembly comprising: with the regulating plate that the first end of support is connected, and with the regulating plate is kept away from a plurality of joint spare of one side swing joint of support, every the one end of joint spare is configured as: after the support is sleeved on the shaft sleeve through the first through hole, the support is abutted with one end, far away from the support, of the shaft sleeve;
and, a force assembly, the force assembly comprising: one end of the gravity rod is connected with the second end of the support, the bulge structure is fixedly connected with one end, far away from the support, of the gravity rod, and the heavy hammer is sleeved on the gravity rod and movably connected with the gravity rod.
Optionally, one surface of the adjusting plate, which is away from the bracket, is provided with a boss extending in a spiral shape, and each clamping piece is provided with a plurality of clamping grooves matched with the shape of the boss;
the first end of the bracket is provided with a plurality of limiting through grooves which correspond to the clamping pieces one by one;
after each clamping piece penetrates through the corresponding limiting through groove, the clamping pieces are movably connected with the adjusting plate through the matching of the clamping grooves and the bosses;
when the adjusting plate rotates, each clamping piece stretches in the extending direction of the clamping piece through the matching of the clamping grooves and the bosses.
Optionally, each of the clips includes: a plunger and a clamping shovel;
the clamping shovels are arranged on the plunger, and the plunger is provided with a plurality of clamping grooves;
the joint shovel is located in the sliding groove and is in sliding connection with the plunger.
Optionally, every in the joint spare the length of joint shovel is greater than the length of plunger, just the extending direction of joint shovel with the extending direction of plunger is parallel.
Optionally, one end of the clamping shovel, which is close to the adjusting plate, is provided with a clamping inclined plane.
Optionally, the force assembly further comprises: and the second end of the support is connected with a supporting rod, the supporting rod is connected with the stress application rod, and the extending direction of the supporting rod is vertical to that of the stress application rod.
Optionally, the support rod has a threaded through hole, the force application rod has an external thread matched with the threaded through hole, and the support rod is sleeved on the force application rod through the threaded through hole and is in threaded connection with the force application rod.
Optionally, one end of the force application rod close to the bracket is provided with a conical protrusion.
Optionally, the shape of the convex structure on the end of the stress application rod away from the bracket is hexagonal prism.
Optionally, the cylindrical structure of support, just have a plurality of hollow out construction on the lateral wall of support, the extending direction of support with the extending direction of stress application pole is parallel, and with the extending direction of joint spare is perpendicular.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
this axle sleeve extracting tool includes: support, heating resistor silk, joint subassembly and afterburning subassembly. The clip assembly may include: the adjusting plate and the plurality of clamping pieces; the force application assembly may include: stress application pole, protruding structure and weight. When the shaft sleeve that cup joints on the pump shaft in the centrifugal pump is demolishd to needs adoption shaft sleeve demolishs the instrument, can cup joint the support in this shaft sleeve demolishs the instrument on the shaft sleeve of waiting to demolish, and heat this shaft sleeve of waiting to demolish through the heating resistor silk in the support, should wait that the fastness of being connected between the axle sleeve of demolishing and the pump shaft after the thermal expansion is lower, then the position of every joint spare in the joint subassembly of adjustment and the first end of support is connected, make the one end of every joint spare can keep away from the one end butt of support with the shaft sleeve of waiting to demolish, through the weight in the afterburning subassembly of being connected with the second end of support at last, the protruding structure of one of support is kept away from to the striking energizing lever, make the support receive the direction for being close to the effort of energizing lever one side, can dismantle the shaft sleeve of waiting to demolish from the pump shaft through this effort. Need not to use the hand hammer to strike the axle sleeve of waiting to demolish, and then avoided this to wait that the axle sleeve of demolising seriously damages and condemned phenomenon that the in-process appears demolising, and can avoid the pump shaft to appear the phenomenon of damage, and then will wait that the axle sleeve of demolising dismantles the back, need not to carry out the crooked correction processing to the pump shaft, effectual improvement with the axle sleeve from the pump shaft when dismantling the efficiency, and can reduce the cost when safeguarding the centrifugal pump.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a shaft sleeve dismounting tool provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a heating resistance wire provided in an embodiment of the present application;
FIG. 3 is a schematic structural view of another bushing removing tool provided in the embodiments of the present application;
FIG. 4 is a schematic view illustrating a connection relationship between a bracket and an adjusting plate according to an embodiment of the present application;
FIG. 5 is a schematic view of the bracket and adjustment plate shown in FIG. 4 on the other side;
fig. 6 is a schematic structural diagram of a clamping assembly provided in an embodiment of the present application;
FIG. 7 is a schematic view of the latch assembly of FIG. 6 on the other side;
fig. 8 is a schematic structural diagram of a clamping member in a clamping assembly according to an embodiment of the present disclosure;
fig. 9 is a schematic view of the snap member shown in fig. 8 on the other side;
Fig. 10 is a schematic structural diagram of a force application assembly provided in an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural view of a shaft sleeve dismounting tool provided in an embodiment of the present application. The shaft sleeve removing tool may include:
the bracket 100, the heating resistance wire 200, the clamping assembly 300 and the force application assembly 400.
The bracket 100 has a first through hole 101. The stand 100 is configured to: and is sleeved on the shaft sleeve to be detached through the first through hole 101. For example, the holder 100 may have a cylindrical shape, and the axis of the holder 100 coincides with the axis of the first through hole 101, so that the holder 100 has a cylindrical structure.
The heating resistance wire 200 is located in the first through hole 101 in the bracket 100, and the heating resistance wire 200 can be fixedly connected with the bracket 100. In order to clearly see the structure of the heating resistance wire 200, please refer to fig. 2, and fig. 2 is a schematic structural diagram of a heating resistance wire provided in the embodiment of the present application. The heating resistance wire 200 extends helically in the first through hole 101 in the holder 100. In this way, after the bracket 100 is sleeved on the shaft sleeve to be removed through the first through hole 101, the heating resistance wire 200 may also be sleeved on the shaft sleeve to be removed.
The clip assembly 300 may include: an adjustment plate 301 and a plurality of snap members 302. Wherein the adjusting plate 301 may be connected to the first end of the bracket 100. Each of the plurality of clips 302 can be movably connected with one side of the adjusting plate 301 far away from the bracket 100. One end of each clip 302 is configured to: after the bracket 100 is sleeved on the shaft sleeve to be removed through the first through hole 101, the shaft sleeve to be removed abuts against one end, far away from the bracket 100, of the shaft sleeve to be removed.
The force amplifier assembly 400 may include: stress application rod 401, raised structure 402, and weight 403. One end of the stress beam 401 may be connected to a second end of the bracket 100. The protruding structure 402 may be fixedly connected to an end of the force application rod 401 away from the bracket 100. The weight 403 can be sleeved on the force application rod 402, and the weight 403 can be movably connected with the force application rod 402. For example, the weight 403 has a second through hole (not labeled), the weight 403 can be sleeved on the force applying rod 402 through the second through hole, and the fit between the weight 403 and the force applying rod 402 is a clearance fit, so that the weight 403 can slide freely on the force applying rod 402.
In the embodiment of the application, when a shaft sleeve sleeved on a pump shaft in a centrifugal pump needs to be removed by using a shaft sleeve removing tool, firstly, a support 100 in the shaft sleeve removing tool can be sleeved on a shaft sleeve to be removed, so that a heating resistance wire 200 in the support 100 can also be sleeved on the shaft sleeve to be removed; then, the shaft sleeve to be dismounted can be heated through the heating resistance wire 200, the shaft sleeve to be dismounted can expand when heated, and the firmness of the connection between the shaft sleeve to be dismounted and the pump shaft is lower after the shaft sleeve expands when heated; then, the position of each clamping piece 302 on the adjusting plate 301 connected with the first end of the bracket 100 can be adjusted, so that one end of each clamping piece 302 is abutted with one end, far away from the bracket 100, of the shaft sleeve to be detached; finally, the weight 403 on the force application rod 401 connected to the second end of the bracket 100 impacts the protrusion 402 on the end of the force application rod 401 away from the bracket 100, so that the bracket 100 is subjected to an acting force directed to the side close to the force application rod 401, the bracket 100 can transmit the acting force to the shaft sleeve to be removed through the clamping piece 302, the shaft sleeve to be removed is also subjected to an acting force directed to the side close to the force application rod 401, and the shaft sleeve to be removed can be removed from the pump shaft through the acting force.
To sum up, the axle sleeve extracting tool that this application embodiment provided includes: support, heating resistor silk, joint subassembly and afterburning subassembly. The clip assembly may include: the adjusting plate and the plurality of clamping pieces; the force application assembly may include: stress application pole, protruding structure and weight. When the shaft sleeve that cup joints on the pump shaft in the centrifugal pump is demolishd to needs adoption shaft sleeve demolishs the instrument, can cup joint the support in this shaft sleeve demolishs the instrument on the shaft sleeve of waiting to demolish, and heat this shaft sleeve of waiting to demolish through the heating resistor silk in the support, should wait that the fastness of being connected between the axle sleeve of demolishing and the pump shaft after the thermal expansion is lower, then the position of every joint spare in the joint subassembly of adjustment and the first end of support is connected, make the one end of every joint spare can keep away from the one end butt of support with the shaft sleeve of waiting to demolish, through the weight in the afterburning subassembly of being connected with the second end of support at last, the protruding structure of one of support is kept away from to the striking energizing lever, make the support receive the direction for being close to the effort of energizing lever one side, can dismantle the shaft sleeve of waiting to demolish from the pump shaft through this effort. Need not to use the hand hammer to strike the axle sleeve of waiting to demolish, and then avoided this to wait that the axle sleeve of demolising seriously damages and condemned phenomenon that the in-process appears demolising, and can avoid the pump shaft to appear the phenomenon of damage, and then will wait that the axle sleeve of demolising dismantles the back, need not to carry out the crooked correction processing to the pump shaft, effectual improvement with the axle sleeve from the pump shaft when dismantling the efficiency, and can reduce the cost when safeguarding the centrifugal pump.
In the present embodiment, as shown in fig. 2, the heating resistor wire 200 in the shaft sleeve removing tool has a power input end 200 a. The power input end 200a in the heating resistance wire 200 can be electrically connected with an external power supply, and the heating resistance wire 200 can be powered by the external power supply, so that the heating resistance wire 200 can generate heat to heat the shaft sleeve to be detached.
In the present application, as shown in fig. 3, fig. 3 is a schematic structural diagram of another bushing removing tool provided in an embodiment of the present application. The holder 100 in the bushing removing tool may have a cylindrical structure. For example, the extending direction of the bracket 100 may be parallel to the extending direction of the force application rod 301 in the force application assembly 300 connected to the second end of the bracket 100.
In the present application, the rack 100 has a plurality of hollow structures 102 on its side walls. For example, as shown in fig. 3, the side wall of the bracket 100 has two symmetrically arranged hollow structures 102. Through the hollow structures 102 on the side walls of the support 100, it can be ensured that heat generated by the heating resistance wire 200 in the support 100 can be radiated out through the hollow structures 102, and the efficiency of heating the shaft sleeve to be detached is improved. Moreover, the hollow structure 102 arranged on the side wall of the bracket 100 can ensure that the weight of the bracket 100 is light, so that the shaft sleeve removing tool is convenient to operate, and the efficiency of removing the shaft sleeve to be removed is further improved.
In the embodiment of the present application, the adjusting plate 301 of the clamping assembly 300 in the bushing removing tool may be sleeved on the first end of the bracket 100, and the adjusting plate 301 may be movably connected to the first end of the bracket 100.
For example, since an operator needs to rotate the adjustment plate 301 when subsequently removing the bushing by using a bushing removing tool, the phenomenon that the adjustment plate 301 slides freely from the bracket 100 along the axial direction of the bracket 100 during the rotation of the adjustment plate 301 is avoided. As shown in fig. 3 and fig. 4, fig. 4 is a schematic view illustrating a connection relationship between a bracket and an adjusting plate according to an embodiment of the present application. The first end of the stent 100 may be provided with a plurality of semicircular blocking pieces 103, and for example, the first end of the stent 100 may be provided with four blocking pieces 103, and the four blocking pieces 103 are distributed on the outer wall of the stent 100. In the present application, the plurality of blocking pieces 103 may be in contact with a surface of the adjustment plate 301 fitted to the first end of the bracket 100, the surface being close to the bracket 100. The plurality of blocking pieces 103 can block the adjusting plate 301 on the bracket 100, so that the adjusting plate cannot freely slide along the axial direction of the bracket 100, and the adjusting plate can only rotate on the bracket 100.
In the embodiment of the present application, please refer to fig. 5, fig. 6, and fig. 7, where fig. 5 is a schematic view of the bracket and the adjusting plate shown in fig. 4 on the other side, fig. 6 is a schematic structural view of a clamping assembly provided in the embodiment of the present application, and fig. 7 is a schematic structural view of the clamping assembly shown in fig. 6 on the other side. The adjusting plate 301 of the clamping assembly 300 has a spiral boss 301a on the side away from the bracket 100. Each of the clip members 302 in the clip assembly 300 has a rod-shaped structure, and each clip member 302 has a plurality of clip slots 302a that are engaged with the bosses 301 a. Each clamping piece 302 is movably connected with the adjusting plate 301 through the matching of a plurality of clamping grooves 302a and the spirally extending boss 301a, and after the matching of the plurality of clamping grooves 302a and the spirally extending boss 301a, the connection relationship between the clamping grooves 302a and the boss 301a is similar to threaded connection. As described above, when the adjustment plate 301 rotates, each of the engaging pieces 302 can be extended and contracted in the extending direction of the engaging piece 301 by the engagement of the plurality of engaging grooves 302a with the spirally extending bosses 301 a.
In this application, in order to ensure that when the adjusting plate 301 in the clip assembly 300 rotates, the clip members 302 in the clip assembly 300 can only extend and retract in the extending direction, the first end of the bracket 100 has a plurality of limiting through slots 104 corresponding to the clip members 302 one to one.
Each clamping piece 302 can pass through the corresponding limiting through groove 104, and then is matched with the boss 301a extending in a spiral shape on the adjusting plate 301 through a plurality of clamping grooves 302a on the clamping piece 302, and is movably connected with the adjusting plate 301.
Thus, if the adjusting plate 301 rotates, when each clip 302 can extend and retract in the extending direction of the clip 301 through the cooperation of the plurality of clip grooves 302a and the spirally extending bosses 301a, the clip 301 can extend and retract only in the extending direction of the clip 301 under the limiting effect of the corresponding limiting through grooves 104 on the bracket 100, and the clip 301 does not rotate along with the rotation of the adjusting plate 301. So, can carry out the efficiency of butt with the axle sleeve of waiting to demolish by effectual improvement joint spare 301.
It should be noted that the extending direction of each clip 302 in the clip assembly 300 is perpendicular to the extending direction of the bracket 100.
Alternatively, as shown in fig. 3, fig. 8 and fig. 9, fig. 8 is a schematic structural diagram of a clip member in a clip assembly according to an embodiment of the present disclosure, and fig. 9 is a schematic structural diagram of the clip member shown in fig. 8 on another side. Each clip 302 in the clip assembly 300 may include: a plunger 3021 and a snap-in shovel 3022.
Wherein, the plurality of catching grooves 302a in each catching member 302 may be uniformly distributed on the plunger 3021 in the catching member 302. Also, the plunger 302 of the clip member 302 has a slide groove 302b on a side away from the plurality of clip grooves 302a, and the shape of the slide groove 302b can match the shape of the clip spade 3022 of the clip member 302. Thus, the snap shovel 3022 may be located in the sliding slot 302b, and the snap shovel 3022 may be slidably connected to the plunger 3021.
In the present embodiment, in each clip 302 of the clip assembly 300, the length of the clip shovel 3022 is greater than that of the plunger 3021, and the extending direction of the clip shovel 3022 is parallel to that of the plunger 3021. The end of the clamping shovel 3021 near the adjusting plate 301 has a clamping slope (not labeled).
Thus, when the operator rotates the adjusting plate 301 to rotate, each engaging member 302 moves toward the direction close to the shaft sleeve to be removed through the engagement of the engaging grooves 302a of the plunger 3021 and the protrusions 301a of the adjusting plate 301 extending in a spiral shape, so that one end of the plunger 3021 close to the adjusting plate 301 abuts against the outer wall of the shaft sleeve to be removed. Thereafter, the operator may apply pressure to the end of the clamp blade 3021 remote from the adjustment plate 301 (e.g., by striking the end of the adjustment plate 301 with a hammer or the like to apply pressure thereto), such that the clamp blade 3021, after sliding in the sliding slot 302b of the plunger 3021, abuts against the end of the sleeve to be removed remote from the support 100 via the clamping ramp on the end thereof near the adjustment plate 301, for subsequent removal of the sleeve to be removed via the force assembly 400.
It should be noted that, in order to ensure that the end of the plunger 3021 close to the adjustment plate 301 can be effectively abutted against the outer wall of the bushing to be removed, the friction coefficient of the end of the plunger 3021 close to the adjustment plate 301 needs to be ensured to be relatively large. In this way, after one end of the plunger 3021 near the adjustment plate 301 abuts on the outer wall of the bushing to be removed, the interaction force between the plunger 3021 and the bushing to be removed is large.
It should be noted that, in order to avoid the phenomenon that the clamping shovel 3021 falls off from the sliding groove 302b on the plunger 302 during the process of detaching the shaft sleeve to be detached by the shaft sleeve detaching tool, the sliding groove 302b may be a dovetail groove, that is, the shape of the cross section of the sliding groove 302b is an inverted trapezoid, and thus, the cross section of the clamping shovel 3021 is also an inverted trapezoid. In this case, the snap-fit shovel 3021 is not easily detached from the slide groove 302b of the plunger 302.
In other optional implementation manners, the plunger 302 further has two strip-shaped anti-falling grooves communicated with the sliding groove 302b, and an extending direction of each anti-falling groove is parallel to an extending direction of the sliding groove 302b, and the clamping shovel 3021 further has two anti-falling protrusions corresponding to the two strip-shaped anti-falling grooves one to one, and each anti-falling protrusion matches with a shape of the corresponding anti-falling groove. In this case, when the snap shovel 3021 is located in the sliding groove 302b of the plunger 302, the two anti-falling protrusions on the snap shovel 3021 are respectively located in the two anti-falling grooves, and the snap shovel 3021 can be prevented from falling off from the sliding groove 302b of the plunger 302 by the engagement between the two anti-falling protrusions and the anti-falling grooves.
Alternatively, as shown in fig. 3 and 10, fig. 10 is a schematic structural diagram of a force application assembly provided in an embodiment of the present application. The force assembly 400 can include: a support bar 404 connected to a second end of the stand 100. The support bar 404 can be connected to the stress bar 401 in the stress assembly 400, and the support bar 404 can extend perpendicular to the stress bar 401 in the stress assembly 400. For example, as shown in fig. 4 and 5, the second end of the bracket 100 in the bushing removing tool has two connecting through holes 105, and the support rod 404 in the force application assembly 400 can pass through the two connecting through holes 105 of the bracket 100. It should be noted that, in order to avoid the phenomenon that the force application rod 401 is deflected during the process of applying the force to the force application rod 401 by the weight 403 in the subsequent force application assembly 400 through the protrusion structure 402, the support rod 404 in the force application assembly 400 may be fixedly connected to the bracket 100. For example, after the support bar 404 sequentially passes through the two connecting through holes 105 of the bracket 100, the support bar 404 may be fixed to the bracket 100 by welding.
In the present embodiment, the support rod 404 in the force assembly 400 has a threaded through hole 404 a. The force rod 401 in the force assembly 400 has external threads 401a that mate with the threaded through bore 404 a. That is, the force application rod 401 may be a screw having an external thread 401 a. The support rod 404 can be sleeved on the force application rod 401 through a threaded through hole 404a, and is in threaded connection with the force application rod 401. In this way, the force application rod 401 can move in the extending direction only when the force application rod 401 rotates, and therefore, the threaded connection between the force application rod 401 and the support rod 404 does not affect the effect of the weight 403 applying force to the force application rod 401 through the protrusion 402.
Optionally, the force bar 401 of the force assembly 400 has a conical protrusion 401b at one end near the stent 100. The shape of the convex structure 402 on the end of the stress beam 401 far away from the bracket 100 is a hexagonal prism.
In this case, when the bushing to be removed is removed by using the bushing removing tool, not only the weight 403 in the force applying assembly 400 can be used to apply a force to the bushing to be removed by matching with the force applying rod 401 and the protruding structure 402, but also the force can be applied to the bushing to be removed by matching with the force applying rod 401 and the protruding structure 402.
For example, an operator may first abut against one end of a pump shaft sleeved by a shaft sleeve to be removed in the centrifugal pump through a conical protrusion 401b on one end of the forcing rod 401, which is close to the bracket 100; then, a tool such as a wrench is used to rotate the protrusion 402 having a hexagonal prism shape, so as to rotate the force application rod 401. Because the stress application rod 401 is in threaded connection with the supporting rod 404, and the support 100 connected with the supporting rod 404 does not rotate, therefore, the supporting rod 404 can move towards the direction close to the stress application rod 401 when the stress application rod 401 rotates, and further the supporting rod 404 can drive the support 100 to move towards the direction close to the stress application rod 401, so that the shaft sleeve to be removed can be driven by the clamping piece 302 in the clamping assembly 300 connected with the second end of the support 100 to move towards the direction close to the stress application rod 401, and the shaft sleeve to be removed can be detached from the pump shaft.
Alternatively, the materials of the bracket 100, the adjusting plate 301, the plunger 3021 and the clamping shovel 3022 in the clamping assembly 300, and the reinforcing rod 401, the convex structure 402, the weight 403 and the supporting rod 404 in the reinforcing assembly 400 in the above embodiments may all include: a metallic material. For example, the metal material may be a stainless steel material.
In the embodiment of the application, when an operator needs to use a shaft sleeve removing tool to remove a shaft sleeve sleeved on a pump shaft in a centrifugal pump, firstly, the operator can sleeve a support 100 in the shaft sleeve removing tool on the shaft sleeve to be removed, so that a heating resistance wire 200 in the support 100 can also be sleeved on the shaft sleeve to be removed, and the shaft sleeve removing tool is abutted to a shell of the centrifugal pump; then, an operator may rotate the adjusting plate 301 in the clamping assembly 300 to make it rotate (for example, rotate clockwise), so as to drive the plunger 3021 to move towards a direction close to the shaft sleeve to be removed, and then abut against the outer wall of the shaft sleeve to be removed; then, an operator may apply pressure to an end of the clamping shovel 3022 away from the adjustment plate 301 (for example, an end of the adjustment plate 301 is hit by a tool such as a hammer or a hammer to apply pressure thereto), so that a clamping inclined surface on the end of the clamping shovel 3022 close to the adjustment plate 301 abuts against an end of the to-be-removed bushing away from the bracket 100; then, the heating resistance wire 200 can be used for heating the shaft sleeve to be removed, an operator can observe the change condition of the shaft sleeve to be removed in the heating process, and if the shaft sleeve to be removed has obvious thermal expansion, the heating resistance wire 200 is stopped to heat the shaft sleeve to be removed; finally, a force close to one side of the forcing rod 401 in the forcing assembly 400 is applied to the bracket 100 through the forcing assembly 400, and the bracket 100 can transmit the force to the shaft sleeve to be removed through the clamping shovel 3022 in the clamping assembly 300, so that the shaft sleeve to be removed is also subjected to the force close to one side of the forcing rod 401, and the shaft sleeve to be removed can be removed from the pump shaft through the force.
It should be noted that if an acting force is applied to the shaft sleeve to be removed by the force application assembly 400, so that the shaft sleeve to be removed continuously moves on the pump shaft, a phenomenon that the resistance between the shaft sleeve to be removed and the pump shaft is large and the shaft sleeve to be removed is difficult to move on the pump shaft occurs, an operator may rotate the adjusting plate 301 in the clamping assembly 300 in the reverse direction to enable the adjusting plate to rotate counterclockwise, so as to drive the plunger 3021 to move in a direction away from the shaft sleeve to be removed, and then cancel the abutting relationship between the plunger 3021 and the shaft sleeve to be removed; then, an operator can firstly enable the shaft sleeve dismantling tool to abut against the shell of the centrifugal pump, and then clockwise rotate the adjusting plate 301 to drive the plunger 3021 to move towards the direction close to the shaft sleeve to be dismantled until the side wall of the plunger 3021 abuts against the end face of the shaft sleeve to be dismantled, so that the contact area between the shaft sleeve to be dismantled and the clamping piece 302 is increased; finally, after the force application assembly 400 applies force to the shaft sleeve to be removed, the shaft sleeve to be removed can be easily removed from the pump shaft.
In the embodiment of the present application, the force is applied to the shaft sleeve to be removed by the force application assembly 400, and there are two cases:
In the first case, through the weight 403 on the force application rod 401 in the force application assembly 400, the force application rod 401 hits the protruding structure 402 on the end of the force application rod 401 away from the support 100, so that the support 100 receives the acting force directed to the side close to the force application rod 401, and the support 100 can transmit the acting force to the shaft sleeve to be removed through the clamping piece 302, so that the shaft sleeve to be removed also receives the acting force close to the side close to the force application rod 401.
In the second case, the conical protrusion 401b on one end of the forcing rod 401 in the forcing assembly 400 abuts against one end of the pump shaft sleeved with the shaft sleeve to be removed in the centrifugal pump, and then a tool such as a wrench is used to rotate the forcing rod 401 to form the hexagonal prism protrusion structure 402 on the other end thereof, so as to drive the forcing rod 401 to rotate. Because the stress application rod 401 and the bracing piece 404 are in threaded connection, and the support 100 connected with the bracing piece 404 does not rotate, therefore, the bracing piece 404 can move towards the direction close to the stress application rod 401 when the stress application rod 401 rotates, so that the support 100 receives the acting force of which the direction is close to one side of the stress application rod 401, the support 100 can transmit the acting force to the shaft sleeve to be detached through the clamping piece 302, and the shaft sleeve to be detached also receives the acting force close to one side of the stress application rod 401.
It should be noted that, when the force application assembly 400 applies a force to the shaft sleeve to be removed, the above first condition may be used to apply a force to the shaft sleeve to be removed, so as to reduce a force between the shaft sleeve to be removed and the pump shaft; when adopting above-mentioned second condition again to treat the axle sleeve that demolishs and exert the effort, should treat that the axle sleeve that demolishs can evenly and slowly move on the pump shaft, from dismantling it from the pump shaft, and the axle sleeve of dismantling is difficult for being damaged.
To sum up, the axle sleeve extracting tool that this application embodiment provided includes: the device comprises a bracket, a heating resistance wire, a clamping component and a stress application component. The clip assembly may include: the adjusting plate and the clamping pieces are arranged on the adjusting plate; the force application assembly may include: stress application pole, protruding structure and weight. When the shaft sleeve that cup joints on the pump shaft in the centrifugal pump is demolishd to needs adoption shaft sleeve demolishs the instrument, can cup joint the support in this shaft sleeve demolishs the instrument on the shaft sleeve of waiting to demolish, and heat this shaft sleeve of waiting to demolish through the heating resistor silk in the support, should wait that the fastness of being connected between the axle sleeve of demolishing and the pump shaft after the thermal expansion is lower, then the position of every joint spare in the joint subassembly of adjustment and the first end of support is connected, make the one end of every joint spare can keep away from the one end butt of support with the shaft sleeve of waiting to demolish, through the weight in the afterburning subassembly of being connected with the second end of support at last, the protruding structure of one of support is kept away from to the striking energizing lever, make the support receive the direction for being close to the effort of energizing lever one side, can dismantle the shaft sleeve of waiting to demolish from the pump shaft through this effort. Need not to use the hand hammer to strike the axle sleeve of waiting to demolish, and then avoided this to wait that the axle sleeve of demolising seriously damages and condemned phenomenon that the in-process appears demolising, and can avoid the pump shaft to appear the phenomenon of damage, and then will wait that the axle sleeve of demolising dismantles the back, need not to carry out the crooked correction processing to the pump shaft, effectual improvement with the axle sleeve from the pump shaft when dismantling the efficiency, and can reduce the cost when safeguarding the centrifugal pump.
In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless explicitly defined otherwise.
The above description is intended to be exemplary only, and not to limit the present application, and any modifications, equivalents, improvements, etc. made within the spirit and scope of the present application are intended to be included therein.
Claims (10)
1. A shaft sleeve dismantling tool is characterized by comprising:
a bracket having a first through-hole, the bracket configured to: the shaft sleeve to be dismantled is sleeved with the first through hole;
the heating resistance wire is positioned in the first through hole in the bracket and fixedly connected with the bracket, and the heating resistance wire spirally extends in the first through hole;
a clamping assembly, the clamping assembly comprising: with the regulating plate that the first end of support is connected, and with the regulating plate is kept away from a plurality of joint spare of one side swing joint of support, every the one end of joint spare is configured as: after the support is sleeved on the shaft sleeve through the first through hole, the support is abutted with one end, far away from the support, of the shaft sleeve;
And, a force assembly, the force assembly comprising: one end of the gravity rod is connected with the second end of the support, the bulge structure is fixedly connected with one end, far away from the support, of the gravity rod, and the heavy hammer is sleeved on the gravity rod and movably connected with the gravity rod.
2. Bushing removal tool according to claim 1,
one surface of the adjusting plate, which is far away from the bracket, is provided with a boss which extends in a spiral shape, and each clamping piece is provided with a plurality of clamping grooves matched with the shape of the boss;
the first end of the bracket is provided with a plurality of limiting through grooves which correspond to the clamping pieces one by one;
after each clamping piece penetrates through the corresponding limiting through groove, the clamping pieces are movably connected with the adjusting plate through the matching of the clamping grooves and the bosses;
when the adjusting plate rotates, each clamping piece stretches in the extending direction of the clamping piece through the matching of the clamping grooves and the bosses.
3. Bushing removal tool according to claim 2,
each said clip member includes: a plunger and a clamping shovel;
the clamping shovels are arranged on the plunger, and the plunger is provided with a plurality of clamping grooves;
The joint shovel is located in the sliding groove, and is connected with the plunger in a sliding mode.
4. Bushing removal tool according to claim 3,
every in the joint spare the length of joint shovel is greater than the length of plunger, just the extending direction of joint shovel with the extending direction of plunger is parallel.
5. Bushing removal tool according to claim 3,
one end of the clamping shovel close to the adjusting plate is provided with a clamping inclined plane.
6. Bushing removal tool according to claim 1,
the boost assembly further comprises: and the second end of the support is connected with a supporting rod, the supporting rod is connected with the force applying rod, and the extending direction of the supporting rod is vertical to the extending direction of the force applying rod.
7. Bushing removal tool according to claim 6,
the bracing piece has the screw thread through-hole, the helping hand pole have with screw thread through-hole complex external screw thread, the bracing piece passes through the screw thread through-hole cup joint in on the helping hand pole, and with the helping hand pole threaded connection.
8. Bushing removal tool according to claim 6,
One end of the stress application rod, which is close to the bracket, is provided with a conical bulge.
9. Bushing removal tool according to claim 6,
the shape of the convex structure on one end of the stress application rod, which is far away from the bracket, is a hexagonal prism.
10. Bushing removing tool according to any of claims 1 to 9,
the cylindrical structure of support, just a plurality of hollow out construction have on the lateral wall of support, the extending direction of support with the extending direction of stress application pole is parallel, and with the extending direction of joint spare is perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110021686.2A CN114750106B (en) | 2021-01-08 | 2021-01-08 | Shaft sleeve dismantling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110021686.2A CN114750106B (en) | 2021-01-08 | 2021-01-08 | Shaft sleeve dismantling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114750106A true CN114750106A (en) | 2022-07-15 |
| CN114750106B CN114750106B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110021686.2A Active CN114750106B (en) | 2021-01-08 | 2021-01-08 | Shaft sleeve dismantling tool |
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| Country | Link |
|---|---|
| CN (1) | CN114750106B (en) |
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| CN207915371U (en) * | 2017-10-24 | 2018-09-28 | 上海汽车集团股份有限公司 | Diesel injector disassembling fixture |
| CN110000737A (en) * | 2019-05-20 | 2019-07-12 | 包头中车电机有限公司 | A kind of bearing rapid free wound dismounting tooling |
| CN111702712A (en) * | 2020-07-08 | 2020-09-25 | 北京通嘉鼎元科技有限公司 | Drawing ring, preparation method thereof and shaft sleeve disassembling tool applied to vacuum pump |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060130304A1 (en) * | 2004-12-21 | 2006-06-22 | Gilles Roy | Extraction tool |
| CN201143661Y (en) * | 2007-10-17 | 2008-11-05 | 比亚迪股份有限公司 | Bearing outer ring moving-pulling machine |
| CN104723266A (en) * | 2013-12-18 | 2015-06-24 | 上海宝钢工业技术服务有限公司 | Sliding hammer type cold drawing device for motor rotor external long shaft |
| CN206306065U (en) * | 2016-11-17 | 2017-07-07 | 江麓机电集团有限公司 | A kind of endless-track vehicle balance arm support bushing dismounting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114750106B (en) | 2023-11-28 |
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