CN114750106B - Shaft sleeve dismantling tool - Google Patents
Shaft sleeve dismantling tool Download PDFInfo
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- CN114750106B CN114750106B CN202110021686.2A CN202110021686A CN114750106B CN 114750106 B CN114750106 B CN 114750106B CN 202110021686 A CN202110021686 A CN 202110021686A CN 114750106 B CN114750106 B CN 114750106B
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- rod
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- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 230000000670 limiting effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 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
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application discloses a shaft sleeve dismantling tool, and belongs to the technical field of oil gas transmission. This axle sleeve extracting tool includes: support, heating resistance wire, joint subassembly and afterburning subassembly. The clamping assembly may include: an adjusting plate and a plurality of clamping pieces; the force assembly may include: the device comprises a stress application rod, a protruding structure and a heavy hammer. When the sleeve sleeved on the pump shaft in the centrifugal pump needs to be removed by the sleeve removing tool, the sleeve to be removed can be heated by the heating resistance wire in the bracket, then the position of each clamping piece in the clamping assembly connected with the first end of the bracket is adjusted, one end of each clamping piece can be abutted with one end of the sleeve to be removed, which is far away from the bracket, of the sleeve to be removed, and finally the bracket is subjected to an acting force in a direction close to one side of the stressing rod by the stressing assembly, and the sleeve to be removed can be detached from the pump shaft by the acting force. The efficiency of dismantling the axle sleeve from the pump shaft has effectually been 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
During oil and gas transmission, centrifugal pumps are often used to provide sufficient power to the medium to be transported. The centrifugal pump may generally include: the pump comprises a pump shaft, a shaft sleeve sleeved on the pump shaft and sealing materials positioned between the pump shaft and the shaft sleeve.
After a long period of use of the centrifugal pump, the sealing material in the centrifugal pump is worn out to cause its seal failure to the centrifugal pump, and therefore, the sealing material in the centrifugal pump needs to be replaced periodically. However, if the wear of the sleeve in the centrifugal pump is serious after the centrifugal pump is used for a long time, the sealing material between the sleeve and the pump shaft may not have an effective sealing effect any more, and the sleeve in the centrifugal pump needs to be detached for maintenance.
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, only the shaft sleeve to be removed can be struck by a hand hammer, and the shaft sleeve is detached from the pump shaft after being broken. However, when the shaft sleeve to be removed is knocked by the hammer, the shaft sleeve is extremely easy to damage seriously and discard, the pump shaft is damaged, and even the pump shaft is possibly bent, and after the shaft sleeve is detached from the pump shaft, the bending correction treatment is needed to be carried out on the pump shaft. Thus, the efficiency of removing the sleeve from the pump shaft is currently low.
Disclosure of Invention
The embodiment of the application provides a shaft sleeve dismantling tool. Can solve the lower problem of efficiency of prior art with the axle sleeve dismantlement from the pump shaft, technical scheme is as follows:
there is provided a sleeve removal tool comprising:
a bracket having a first through hole, the bracket configured to: the sleeve is sleeved on the shaft sleeve to be removed through 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;
the joint subassembly, the joint subassembly includes: the adjusting plate is connected with the first end of support, and with the adjusting plate keep away from a plurality of joint spare of side swing joint of support, every the one end of joint spare is configured as: after the bracket is sleeved on the shaft sleeve through the first through hole, the bracket is abutted with one end, far away from the bracket, of the shaft sleeve;
and a force assembly, the force assembly comprising: one end of the heavy hammer is connected with the second end of the support, the convex structure is fixedly connected with one end of the stress application rod, which is far away from the support, and the heavy hammer is sleeved on the stress application rod and is movably connected with the stress application rod.
Optionally, a boss extending in a spiral shape is arranged on one surface of the adjusting plate away from the bracket, and each clamping piece is provided with a plurality of clamping grooves matched with the boss in shape;
the first end of the bracket is provided with a plurality of limit through grooves which are in one-to-one correspondence with the clamping pieces;
after each clamping piece passes 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 boss.
Optionally, each of the clamping members includes: a plunger and a clamping shovel;
the plurality of clamping grooves are uniformly distributed on the plunger, the plunger is further provided with sliding grooves positioned on one surface far away from the plurality of clamping grooves, and the sliding grooves are matched with the clamping shovel in shape;
the clamping shovel is located in the sliding groove and is in sliding connection with the plunger.
Optionally, the length of the clamping shovel in each clamping piece is greater than the length of the plunger, and the extending direction of the clamping shovel is parallel to the extending direction of the plunger.
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 includes: the support rod is connected with the second end of the support, the support rod is connected with the stressing rod, and the extending direction of the support rod is perpendicular to the extending direction of the stressing rod.
Optionally, the supporting rod is provided with a threaded through hole, the stress application rod is provided with an external thread matched with the threaded through hole, and the supporting rod is sleeved on the stress application rod through the threaded through hole and is in threaded connection with the stress application rod.
Optionally, one end of the stressing rod, which is close to the bracket, is provided with a conical bulge.
Optionally, the shape of the protruding structure on the end of the force bar away from the bracket is a hexagonal prism.
Optionally, the cylindrical structure of support, just have a plurality of hollow structures on the lateral wall of support, the extending direction of support with the extending direction of afterburning pole is parallel, and with the extending direction of joint spare is perpendicular.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
this axle sleeve extracting tool includes: support, heating resistance wire, joint subassembly and afterburning subassembly. The clamping assembly may include: an adjusting plate and a plurality of clamping pieces; the force assembly may include: the device comprises a stress application rod, a protruding structure and a heavy hammer. When the sleeve sleeved on the pump shaft in the centrifugal pump needs to be removed by the sleeve removing tool, the support in the sleeve removing tool can be sleeved on the sleeve to be removed, the sleeve to be removed is heated by the heating resistance wire in the support, the firmness of connection between the sleeve to be removed and the pump shaft after being heated and expanded is low, then the position of each clamping piece in the clamping assembly connected with the first end of the support is adjusted, one end of each clamping piece can be abutted with one end of the sleeve to be removed away from the support, and finally the support is subjected to an acting force in a direction close to one side of the acting rod by a heavy hammer in the acting assembly connected with the second end of the support, so that the sleeve to be removed can be detached from the pump shaft by the acting force. Need not to use the hammer to strike the axle sleeve of waiting to demolish, and then avoided this axle sleeve of waiting to demolish and seriously damage that appears in demolishing the in-process and scrapped phenomenon, and can avoid the phenomenon that the pump shaft appears damaging, and then after demolishing the axle sleeve of waiting to demolish, need not to carry out crooked correction to the pump shaft and handle, the effectual efficiency when dismantling the axle sleeve from the pump shaft that has improved, and can reduce the cost when maintaining the centrifugal pump.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a shaft sleeve disassembling tool according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a heating resistance wire according to an embodiment of the present application;
FIG. 3 is a schematic view of another sleeve removal tool according to an embodiment of the present application;
FIG. 4 is a schematic diagram of 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 according to an embodiment of the present application;
FIG. 7 is a schematic view of the structure of the clamping assembly shown in 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 application;
FIG. 9 is a schematic view of the latch of FIG. 8 on the other side;
FIG. 10 is a schematic diagram of a force module according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a shaft sleeve disassembling tool according to an embodiment of the application. The sleeve removing tool may include:
the heating resistor wire 200, the clamping assembly 300 and the stressing assembly 400 are arranged on the bracket 100.
The bracket 100 has a first through hole 101. The stand 100 is configured to: is sleeved on the shaft sleeve to be removed through the first through hole 101. For example, the bracket 100 may have a cylindrical shape, and the axis of the bracket 100 coincides with the axis of the first through hole 101, so that the bracket 100 has a cylindrical structure.
The heating resistance wire 200 is positioned in the first through hole 101 in the bracket 100, and the heating resistance wire 200 may be fixedly connected with the bracket 100. For a clearer view of the structure of the heating resistor wire 200, please refer to fig. 2, fig. 2 is a schematic diagram of the structure of the heating resistor wire according to an embodiment of the present application. The heating resistance wire 200 extends in a spiral shape in the first through hole 101 in the holder 100. In this way, after the bracket 100 is sleeved on the sleeve to be removed through the first through hole 101, the heating resistor wire 200 can also be sleeved on the sleeve to be removed.
The clamping assembly 300 may include: an adjustment plate 301 and a plurality of snap-in fittings 302. Wherein the adjustment plate 301 may be coupled to a first end of the bracket 100. Each of the plurality of clamping members 302 may be movably connected to a side of the adjusting plate 301 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 bracket is abutted with one end, far away from the bracket 100, of the shaft sleeve to be removed.
The force assembly 400 may include: a force bar 401, a bump structure 402 and a weight 403. One end of the force bar 401 may be connected to a second end of the bracket 100. The projection structure 402 may be fixedly coupled to an end of the force bar 401 remote from the bracket 100. The weight 403 may be sleeved on the force bar 402, and the weight 403 may be movably connected to the force bar 402. For example, the weight 403 has a second through hole (not labeled in the figure), the weight 403 may be sleeved on the force bar 402 through the second through hole, and the fit between the weight 403 and the force bar 402 is a clearance fit, so as to ensure that the weight 403 can freely slide on the force bar 402.
In the embodiment of the application, when the sleeve sleeved on the pump shaft in the centrifugal pump needs to be removed by adopting the sleeve removing tool, firstly, the bracket 100 in the sleeve removing tool can be sleeved on the sleeve to be removed, so that the heating resistance wire 200 in the bracket 100 can also be sleeved on the sleeve to be removed; afterwards, the shaft sleeve to be dismantled can be heated through the heating resistance wire 200, the shaft sleeve to be dismantled can be heated and expanded, and the firmness of the connection between the shaft sleeve to be dismantled and the pump shaft after being heated and expanded is low; then, the position of each of the clamping pieces 302 on the adjusting plate 301 connected to the first end of the bracket 100 may be adjusted so that one end of the clamping piece 302 abuts against one end of the sleeve to be removed away from the bracket 100; finally, by the weight 403 on the stressing rod 401 connected to the second end of the support 100, the end of the stressing rod 401 far away from the support 100 is impacted against the protrusion structure 402, so that the support 100 receives a force directed to a side close to the stressing rod 401, the support 100 can transmit the force to the sleeve to be removed through the clamping piece 302, so that the sleeve to be removed also receives a force near the stressing rod 401, and the sleeve to be removed can be removed from the pump shaft through the force.
In summary, the shaft sleeve disassembling tool provided by the embodiment of the application includes: support, heating resistance wire, joint subassembly and afterburning subassembly. The clamping assembly may include: an adjusting plate and a plurality of clamping pieces; the force assembly may include: the device comprises a stress application rod, a protruding structure and a heavy hammer. When the sleeve sleeved on the pump shaft in the centrifugal pump needs to be removed by the sleeve removing tool, the support in the sleeve removing tool can be sleeved on the sleeve to be removed, the sleeve to be removed is heated by the heating resistance wire in the support, the firmness of connection between the sleeve to be removed and the pump shaft after being heated and expanded is low, then the position of each clamping piece in the clamping assembly connected with the first end of the support is adjusted, one end of each clamping piece can be abutted with one end of the sleeve to be removed away from the support, and finally the support is subjected to an acting force in a direction close to one side of the acting rod by a heavy hammer in the acting assembly connected with the second end of the support, so that the sleeve to be removed can be detached from the pump shaft by the acting force. Need not to use the hammer to strike the axle sleeve of waiting to demolish, and then avoided this axle sleeve of waiting to demolish and seriously damage that appears in demolishing the in-process and scrapped phenomenon, and can avoid the phenomenon that the pump shaft appears damaging, and then after demolishing the axle sleeve of waiting to demolish, need not to carry out crooked correction to the pump shaft and handle, the effectual efficiency when dismantling the axle sleeve from the pump shaft that has improved, and can reduce the cost when maintaining the centrifugal pump.
In an embodiment of the present application, as shown in fig. 2, a heating resistor wire 200 in a sleeve removing tool has a power input end 200a. The power input end 200a of 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 disassembled.
In the present application, as shown in fig. 3, fig. 3 is a schematic structural diagram of another sleeve removing tool according to an embodiment of the present application. The holder 100 in the sleeve removal tool may be of cylindrical configuration. For example, the direction of extension of the bracket 100 may be parallel to the direction of extension of the force bar 301 in the force module 300 to which the second end of the bracket 100 is connected.
In the present application, the sidewall of the bracket 100 has a plurality of hollow structures 102. As shown in fig. 3, the side wall of the bracket 100 has two hollow structures 102 symmetrically disposed. Through the hollow structure 102 on the side wall of the bracket 100, the heat generated by the heating resistance wire 200 in the bracket 100 can be radiated out from the hollow structure 102, and the heating efficiency of the shaft sleeve to be dismantled is improved. Moreover, the hollow structure 102 arranged on the side wall of the bracket 100 can ensure that the bracket 100 has lighter weight, is convenient for operating the shaft sleeve dismantling tool, and further improves the efficiency of dismantling the shaft sleeve to be dismantled.
In an embodiment of the present application, the adjusting plate 301 of the clamping assembly 300 in the sleeve removing tool may be sleeved on the first end of the bracket 100, and the adjusting plate 301 may be movably connected with the first end of the bracket 100.
For example, since the operator needs to rotate the adjustment plate 301 to rotate when the sleeve is removed by the sleeve removing tool, the adjustment plate 301 is prevented from freely sliding along the axial direction of the bracket 100 from the bracket 100 during the rotation of the adjustment plate 301. As shown in fig. 3 and fig. 4, fig. 4 is a schematic diagram of a connection relationship between a bracket and an adjusting plate according to an embodiment of the present application. A plurality of semicircular blocking pieces 103 may be disposed on the first end of the bracket 100, and for example, four blocking pieces 103 may be disposed on the first end of the bracket 100, and the four blocking pieces 103 are all distributed on the outer wall of the bracket 100. In the present application, each of the plurality of blocking pieces 103 may abut against a surface of the adjusting plate 301 sleeved on the first end of the bracket 100, which is 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 can not freely slide along the axial direction of the bracket 100, and only rotate on the bracket 100.
In the embodiment of the present application, please refer to fig. 5, fig. 6 and fig. 7, fig. 5 is a schematic diagram of the bracket and the adjusting plate shown in fig. 4 on the other side, fig. 6 is a schematic diagram of a structure of the clamping assembly provided in the embodiment of the present application, and fig. 7 is a schematic diagram of the structure of the clamping assembly shown in fig. 6 on the other side. The adjusting plate 301 of the clamping assembly 300 has a boss 301a extending spirally away from the bracket 100. Each of the clamping members 302 of the clamping assembly 300 has a rod-shaped structure, and each clamping member 302 has a plurality of clamping grooves 302a matched with the boss 301a. Each clamping piece 302 is movably connected with the adjusting plate 301 through the cooperation of a plurality of clamping grooves 302a and a boss 301a extending in a spiral shape, and after the cooperation of the clamping grooves 302a and the boss 301a extending in the spiral shape, the two are connected in a similar threaded connection. In this way, when the adjustment plate 301 rotates, each of the engaging pieces 302 can be expanded and contracted in the extending direction of the engaging piece 301 by the engagement of the plurality of engaging grooves 302a with the boss 301a extending in a spiral shape.
In the present application, in order to ensure that the clamping member 302 in the clamping assembly 300 can only extend and retract in the extending direction when the adjusting plate 301 in the clamping assembly 300 rotates, the first end of the bracket 100 has a plurality of limiting through slots 104 corresponding to the plurality of clamping members 302 one by one.
Each clamping piece 302 may pass through the corresponding limiting through slot 104, and then is matched with the boss 301a extending spirally on the adjusting plate 301 through a plurality of clamping slots 302a on the clamping piece 302, and is movably connected with the adjusting plate 301.
Thus, if the adjusting plate 301 rotates, when each clamping piece 302 can be matched with the boss 301a extending in a spiral shape through the plurality of clamping grooves 302a, and the clamping piece 301 stretches in the extending direction of the clamping piece 301, the clamping piece 301 can stretch in the extending direction of the clamping piece 301 only under the limiting action of the corresponding limiting through groove 104 on the bracket 100, and the clamping piece 301 cannot rotate along with the rotation of the adjusting plate 301. In this way, the efficiency of the abutment between the clamping member 301 and the sleeve to be removed can be effectively improved.
It should be noted that, the extending direction of each clamping member 302 in the clamping 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 view of a clamping member in a clamping assembly according to an embodiment of the present application, and fig. 9 is a schematic structural view of the clamping member shown in fig. 8 on the other side. Each of the snaps 302 in the snap assembly 300 may include: plunger 3021 and snap shovel 3022.
The plurality of clamping grooves 302a in each clamping member 302 may be uniformly distributed on the plunger 3021 in the clamping member 302. Also, the plunger 302 in the clip 302 further has a sliding groove 302b on a side remote from the plurality of clip grooves 302a, the sliding groove 302b may be shaped to match the shape of the clip spade 3022 in the clip 302. As such, the clamping shovel 3022 can be positioned within the sliding groove 302b, and the clamping shovel 3022 can be slidably coupled to the plunger 3021.
In the embodiment of the present application, in each of the clamping members 302 in the clamping assembly 300, the length of the clamping shovel 3022 is greater than the length of the plunger 3021, and the extending direction of the clamping shovel 3022 is parallel to the extending direction of the plunger 3021. The end of the clamping shovel 3021 near the adjusting plate 301 has a clamping inclined surface (not labeled in the figure).
Thus, when the operator rotates the adjusting plate 301 to rotate, each of the locking members 302 moves in a direction approaching the sleeve to be removed by the engagement of the plurality of locking grooves 302a on the plunger 3021 with the helically extending protrusions 301a on the adjusting plate 301, so that the end of the plunger 3021 approaching the adjusting plate 301 abuts against the outer wall of the sleeve to be removed. Thereafter, an operator may apply pressure to an end of the clamping shovel 3021 remote from the adjustment plate 301 (e.g., strike an end of the adjustment plate 301 with a tool such as a hammer or hammer to apply pressure thereto) such that the clamping shovel 3021 slides in the sliding groove 302b in the plunger 3021 and abuts against an end of the sleeve to be removed remote from the bracket 100 through a clamping ramp on an end thereof adjacent to the adjustment plate 301 for subsequent removal of the sleeve to be removed through the force application assembly 400.
It should be noted that, in order to ensure that the end of the plunger 3021 near the adjustment plate 301 can effectively abut against the outer wall of the sleeve to be removed, it is necessary to ensure that the friction coefficient of the end of the plunger 3021 near the adjustment plate 301 is relatively large. In this way, after the end of the plunger 3021 near the adjustment plate 301 abuts on the outer wall of the sleeve to be removed, the interaction force between the plunger 3021 and the sleeve to be removed is large.
It should be further 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 disassembling the shaft sleeve to be disassembled by the shaft sleeve disassembling tool, the sliding groove 302b may be a dovetail groove, that is, the cross section of the sliding groove 302b is in an inverted trapezoid shape, so the cross section of the clamping shovel 3021 is also in an inverted trapezoid shape. In this case, the click blade 3021 is not easily disengaged from the slide groove 302b of the plunger 302.
In other alternative implementations, the plunger 302 further has two strip-shaped anti-drop grooves that are in two-pass with the sliding groove 302b, and each of the anti-drop grooves extends in a direction parallel to the extending direction of the sliding groove 302b, and the clip shovel 3021 further has two anti-drop protrusions that are in one-to-one correspondence with the two strip-shaped anti-drop grooves, and each of the anti-drop protrusions matches the shape of the corresponding anti-drop groove. In this case, when the click shovel 3021 is located in the sliding groove 302b in the plunger 302, two falling-off preventing projections on the click shovel 3021 are located in the two falling-off preventing grooves, respectively, and by the engagement of the falling-off preventing projections with the falling-off preventing grooves, the falling-off phenomenon of the click shovel 3021 from the sliding groove 302b on the plunger 302 can be avoided.
Alternatively, as shown in fig. 3 and 10, fig. 10 is a schematic structural view of a force module according to an embodiment of the present application. The force assembly 400 may include: a support bar 404 coupled to a second end of the bracket 100. The support bar 404 may be connected to the force bar 401 in the force assembly 400, and the support bar 404 may extend in a direction perpendicular to the direction of extension of the force bar 401 in the force assembly 400. As shown in fig. 4 and 5, for example, the second end of the bracket 100 of the sleeve removing tool has two connecting through holes 105, and the support rod 404 of the force module 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 weight 403 in the subsequent force application assembly 400 deflects the force application rod 401 during the force application process of the force application rod 401 by the protrusion structure 402, the support rod 404 in the force application assembly 400 may be fixedly connected to the support 100. For example, after the support bar 404 sequentially passes through the two connection through holes 105 of the bracket 100, the support bar 404 may be fixed to the bracket 100 by welding.
In an embodiment of the present application, the support bar 404 in the force module 400 has a threaded through hole 404a. The force bar 401 in the force assembly 400 has external threads 401a that mate with threaded through holes 404a. That is, the urging lever 401 may be a screw having an external thread 401a. The support bar 404 may be sleeved on the force bar 401 through a threaded through hole 404a and screwed with the force bar 401. Thus, only when the urging lever 401 is rotated, the urging lever 401 can be moved in the extending direction thereof, and therefore, the threaded connection between the urging lever 401 and the support lever 404 does not affect the effect of the weight 403 exerting the urging force on the urging lever 401 through the boss structure 402.
Optionally, the force bar 401 in the force assembly 400 has a conical protrusion 401b near one end of the bracket 100. The force bar 401 has a hexagonal prism shape with a projection structure 402 on an end remote from the holder 100.
In this case, when the sleeve removing tool is used to remove the sleeve to be removed, the force can be applied to the sleeve to be removed by not only matching the weight 403 in the force applying assembly 400 with the force applying rod 401 and the protrusion structure 402, but also matching the force applying rod 401 with the protrusion structure 402.
For example, an operator may first approach the conical protrusion 401b on one end of the bracket 100 via the force bar 401 and abut against one end of the pump shaft sleeved by the shaft sleeve to be removed in the centrifugal pump; a tool such as a wrench is used to rotate the hexagonal protrusion structure 402 to drive the force bar 401 to rotate. Because the stressing rod 401 is in threaded connection with the supporting rod 404, and the bracket 100 connected with the supporting rod 404 does not rotate, the supporting rod 404 can move towards the direction close to the stressing rod 401 when the stressing rod 401 rotates, so that the supporting rod 404 can drive the bracket 100 to move towards the direction close to the stressing rod 401, and the shaft sleeve to be removed can move towards the direction close to the stressing rod 401 under the driving of the clamping piece 302 in the clamping assembly 300 connected with the second end of the bracket 100, so that the shaft sleeve to be removed can be removed from the pump shaft.
Optionally, the materials of the adjusting plate 301, the plunger 3021, and the clamping shovel 3022 in the clamping assembly 300, and the stressing rod 401, the protrusion structure 402, the weight 403, and the support rod 404 in the stressing assembly 400 of the bracket 100 in the above embodiment may include: a metal material. For example, the metallic material may be a stainless steel material.
In the embodiment of the application, when an operator needs to use a shaft sleeve dismantling tool to dismantle a shaft sleeve sleeved on a pump shaft in a centrifugal pump, firstly, the operator can sleeve a support 100 in the shaft sleeve dismantling tool on the shaft sleeve to be dismantled, so that a heating resistance wire 200 in the support 100 can also be sleeved on the shaft sleeve to be dismantled, and the shaft sleeve dismantling tool is abutted on a shell of the centrifugal pump; then, an operator can rotate the adjusting plate 301 in the clamping assembly 300 to make it rotate (e.g. rotate clockwise), so as to drive the plunger 3021 to move in a direction close to the shaft sleeve to be removed and then to abut against the outer wall of the shaft sleeve to be removed; thereafter, an operator may apply pressure to an end of the clamping shovel 3022 remote from the adjustment plate 301 (e.g., strike an end of the adjustment plate 301 with a tool such as a hammer or hammer to apply pressure thereto) such that the clamping shovel 3022 abuts against a clamping ramp on an end of the sleeve to be removed remote from the bracket 100; afterwards, the shaft sleeve to be removed can be heated through the heating resistance wire 200, 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 phenomenon, the heating resistance wire 200 stops heating the shaft sleeve to be removed; finally, by applying a force to the bracket 100 by the force assembly 400 on the side of the force bar 401 in the force assembly 400, the bracket 100 can transmit the force to the sleeve to be removed by the clamping spade 3022 in the clamping assembly 300, so that the sleeve to be removed is also subjected to a force on the side of the force bar 401, and the sleeve to be removed can be detached from the pump shaft by the force.
It should be noted that, if the force is applied to the shaft sleeve to be removed by the force application assembly 400, so that in the process that the shaft sleeve to be removed continuously moves on the pump shaft, a resistance between the shaft sleeve to be removed and the pump shaft is relatively large, and the shaft sleeve to be removed is difficult to move on the pump shaft, then an operator may reversely rotate the adjusting plate 301 in the clamping assembly 300 to make the adjusting plate rotate anticlockwise, 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 make the shaft sleeve dismantling tool abut against the shell of the centrifugal pump, and then rotate the adjusting plate 301 clockwise to drive the plunger 3021 to move towards the direction of 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 is used to apply 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 applied to the sleeve to be removed by the force application assembly 400 is as follows:
in the first case, by striking the weight 403 on the force bar 401 in the force assembly 400 against the protrusion 402 on the end of the force bar 401 away from the bracket 100, the bracket 100 receives a force directed toward the side of the force bar 401, and the bracket 100 can transmit the force to the sleeve to be removed through the clip 302, so that the sleeve to be removed receives a force toward the side of the force bar 401.
In the second case, the conical protrusion 401b at one end of the force bar 401 in the force assembly 400 is abutted against one end of the pump shaft sleeved by the shaft sleeve to be removed in the centrifugal pump, and then a tool such as a wrench is used to rotate the force bar 401 to form a hexagonal protrusion structure 402 at the other end of the force bar 401, so as to drive the force bar 401 to rotate. Because the force bar 401 is in threaded connection with the support bar 404, and the support 100 connected with the support bar 404 does not rotate, the support bar 404 will move in a direction approaching the force bar 401 when the force bar 401 rotates, so that the support 100 receives a force acting in a direction approaching the force bar 401, and the support 100 can transmit the force to the sleeve to be removed through the clamping piece 302, so that the sleeve to be removed also receives a force acting on the side approaching the force bar 401.
It should be noted that, when the force assembly 400 applies a force to the shaft sleeve to be removed, the first condition may be used to apply a force to the shaft sleeve to be removed, so as to reduce the force between the shaft sleeve to be removed and the pump shaft; when the second condition is adopted to apply an acting force to the shaft sleeve to be removed, the shaft sleeve to be removed can uniformly and slowly move on the pump shaft, the shaft sleeve to be removed is detached from the pump shaft, and the detached shaft sleeve is not easy to damage.
In summary, the shaft sleeve disassembling tool provided by the embodiment of the application includes: support, heating resistance wire, joint subassembly and afterburning subassembly. The clamping assembly may include: an adjusting plate and a plurality of clamping pieces; the force assembly may include: the device comprises a stress application rod, a protruding structure and a heavy hammer. When the sleeve sleeved on the pump shaft in the centrifugal pump needs to be removed by the sleeve removing tool, the support in the sleeve removing tool can be sleeved on the sleeve to be removed, the sleeve to be removed is heated by the heating resistance wire in the support, the firmness of connection between the sleeve to be removed and the pump shaft after being heated and expanded is low, then the position of each clamping piece in the clamping assembly connected with the first end of the support is adjusted, one end of each clamping piece can be abutted with one end of the sleeve to be removed away from the support, and finally the support is subjected to an acting force in a direction close to one side of the acting rod by a heavy hammer in the acting assembly connected with the second end of the support, so that the sleeve to be removed can be detached from the pump shaft by the acting force. Need not to use the hammer to strike the axle sleeve of waiting to demolish, and then avoided this axle sleeve of waiting to demolish and seriously damage that appears in demolishing the in-process and scrapped phenomenon, and can avoid the phenomenon that the pump shaft appears damaging, and then after demolishing the axle sleeve of waiting to demolish, need not to carry out crooked correction to the pump shaft and handle, the effectual efficiency when dismantling the axle sleeve from the pump shaft that has improved, and can reduce the cost when maintaining the centrifugal pump.
In the present disclosure, 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" refers to two or more, unless explicitly defined otherwise.
The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but is intended to cover all modifications, equivalents, alternatives, and improvements falling within the spirit and principles of the application.
Claims (9)
1. A sleeve removal tool, comprising:
a bracket having a first through hole, the bracket configured to: the sleeve is sleeved on the shaft sleeve to be removed through 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;
the joint subassembly, the joint subassembly includes: the adjusting plate is connected with the first end of support, and with the adjusting plate keep away from a plurality of joint spare of side swing joint of support, every the one end of joint spare is configured as: after the bracket is sleeved on the shaft sleeve through the first through hole, the bracket is abutted with one end, far away from the bracket, of the shaft sleeve;
and a force assembly, the force assembly comprising: one end of the heavy hammer is connected with the second end of the support, the convex structure is fixedly connected with one end of the stress application rod, which is far away from the support, and the heavy hammer is sleeved on the stress application rod and is movably connected with the stress application rod;
one surface of the adjusting plate, which is far away from the bracket, is provided with a boss which extends spirally, and each clamping piece is provided with a plurality of clamping grooves matched with the boss in shape;
the first end of the bracket is provided with a plurality of limit through grooves which are in one-to-one correspondence with the clamping pieces;
after each clamping piece passes 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 boss.
2. The sleeve removal tool of claim 1, wherein,
each of the clamping members includes: a plunger and a clamping shovel;
the plurality of clamping grooves are uniformly distributed on the plunger, the plunger is further provided with sliding grooves positioned on one surface far away from the plurality of clamping grooves, and the sliding grooves are matched with the clamping shovel in shape;
the clamping shovel is located in the sliding groove and is in sliding connection with the plunger.
3. The bushing removal tool of claim 2, wherein,
the length of each clamping shovel in the clamping piece is greater than that of the plunger, and the extending direction of the clamping shovel is parallel to that of the plunger.
4. The bushing removal tool of claim 2, wherein,
one end of the clamping shovel, which is close to the adjusting plate, is provided with a clamping inclined surface.
5. The sleeve removal tool of claim 1, wherein,
the force assembly further includes: and the support rod is connected with the second end of the support, the support rod is connected with the stress application rod, and the extending direction of the support rod is perpendicular to the extending direction of the stress application rod.
6. The bushing removal tool of claim 5, wherein,
the support rod is provided with a threaded through hole, the stress application rod is provided with external threads matched with the threaded through hole, and the support rod is sleeved on the stress application rod through the threaded through hole and is in threaded connection with the stress application rod.
7. The bushing removal tool of claim 5, wherein,
the stress application rod is close to one end of the support and is provided with a conical bulge.
8. The bushing removal tool of claim 5, wherein,
the shape of the boss structure on one end of the stressing rod far away from the bracket is a hexagonal prism.
9. A sleeve removal tool as claimed in any one of claims 1 to 8, wherein,
the support is cylindrical, a plurality of hollow structures are arranged on the side wall of the support, and the extending direction of the support is parallel to the extending direction of the stressing rod and perpendicular to the extending direction of the clamping piece.
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 CN114750106A (en) | 2022-07-15 |
| CN114750106B true 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 |
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| CN (1) | CN114750106B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060130304A1 (en) * | 2004-12-21 | 2006-06-22 | Gilles Roy | Extraction tool |
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| CN201143661Y (en) * | 2007-10-17 | 2008-11-05 | 比亚迪股份有限公司 | Bearing outer ring moving-pulling machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114750106A (en) | 2022-07-15 |
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