CN114871990B - Disconnecting switch bearing assembly tool and assembly method - Google Patents
Disconnecting switch bearing assembly tool and assembly method Download PDFInfo
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- CN114871990B CN114871990B CN202210423025.7A CN202210423025A CN114871990B CN 114871990 B CN114871990 B CN 114871990B CN 202210423025 A CN202210423025 A CN 202210423025A CN 114871990 B CN114871990 B CN 114871990B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 75
- 238000003825 pressing Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002788 crimping Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses an assembly fixture and an assembly method of an isolating switch bearing, wherein a first outer ring positioning piece can penetrate through an outer ring of an upper end bearing and is respectively attached to the inner wall of a bearing seat and the inner wall of the outer ring of the upper end bearing, and is abutted to the upper end face of the outer ring of the upper end bearing, a second outer ring positioning piece can penetrate through an outer ring of a lower end bearing and is respectively attached to the inner wall of the bearing seat and the inner wall of the outer ring of the lower end bearing, and is abutted to the lower end face of the outer ring of the lower end bearing, a first inner ring positioning piece can be sleeved on a rotating shaft for welding, and is attached to the inner wall of the inner ring of the upper end bearing, a second inner ring positioning piece can be sleeved on the rotating shaft for welding, and is attached to the inner wall of the rotating shaft for welding, and is abutted to the end face of the inner ring of the lower end bearing. The coaxiality of the upper end bearing, the lower end bearing, the bearing seat and the rotating shaft welding can be ensured.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to an isolating switch bearing assembly tool and an assembly method.
Background
The isolating switch is the most used one of the high-voltage switch appliances and plays an isolating role in a circuit. The working principle and the structure of the power substation are simpler, but the power substation and the power plant are more greatly influenced by the large usage amount and high requirement on working reliability. The high-voltage isolating switch is used for switching on and switching off a circuit in a no-load state, safely isolating maintenance equipment and a switching circuit, and can reliably pass rated current in an operating state. GW27 series isolator is a double-break isolator, drives the conducting rod through mechanism power and carries out horizontal rotation, then the mechanism continues to move, and the conducting rod rotates along self axis, accomplishes the switching-on operation, in order to guarantee the smoothness in the whole motion process, as shown in fig. 1-4, the bearing structure of conducting rod lower extreme includes vase, pivot welding 4, bearing frame 1, upper end bearing 2, lower end bearing 3 and chassis, upper end bearing 2 and lower end bearing 3 set up in the pivot welding 4 and between bearing frame 1, upper end bearing 2 and lower end bearing 3 interval setting. The performance of the disconnector may be affected if the upper end bearing 2, the lower end bearing 3, the shaft welds 4 and the bearing housing 1 are not assembled in place. In the prior art, the assembly is carried out manually, however, the manual assembly easily causes inconsistent assembly parameters and inconsistent product quality, and also can cause that some assembly gaps are large in the later period and some assembly gaps are small, and the isolating switch shakes under the action of the gravity of the porcelain insulator, so that the opening and closing performance of the isolating switch is influenced, and the labor intensity of workers is high, the operation difficulty is high, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide an assembly tool and an assembly method for a disconnecting switch bearing, which are used for solving the problems that the assembly parameters are inconsistent easily, the opening and closing performance of the disconnecting switch is affected, the labor intensity of workers is high, the operation difficulty is high and the production efficiency is low due to the fact that manual assembly is adopted in the assembly of an upper end bearing, a lower end bearing, a rotating shaft and a bearing seat.
To achieve the purpose, the invention adopts the following technical scheme:
an isolator bearing assembly fixture for assemble upper end bearing and lower end bearing between bearing frame and pivot welding, it includes:
the first outer ring positioning piece can be partially penetrated into the bearing seat, the other part of the first outer ring positioning piece is penetrated into the outer ring of the upper end bearing and is respectively attached to the inner wall of the bearing seat and the inner wall of the outer ring of the upper end bearing, and the first outer ring positioning piece can be abutted with the upper end face of the outer ring of the upper end bearing;
the second outer ring positioning piece can be partially penetrated through the bearing seat, and the other part of the second outer ring positioning piece is penetrated through the outer ring of the lower end bearing and is respectively attached to the inner wall of the bearing seat and the inner wall of the outer ring of the lower end bearing, and the second outer ring positioning piece can be abutted with the lower end surface of the outer ring of the lower end bearing;
the inner ring of the upper end bearing is sleeved on the rotating shaft for welding, the first inner ring positioning piece can be sleeved on the rotating shaft for welding, the inner wall of the first inner ring positioning piece is attached to the outer wall of the rotating shaft for welding, and the first inner ring positioning piece can be abutted to the end face of the inner ring of the upper end bearing;
the inner ring of the lower end bearing is sleeved on the rotating shaft for welding, the second inner ring positioning piece can be sleeved on the rotating shaft for welding, the inner wall of the second inner ring positioning piece is attached to the outer wall of the rotating shaft for welding, and the second inner ring positioning piece can be abutted to the end face of the inner ring of the lower end bearing.
As a preferred scheme of the disconnecting switch bearing assembly tool, the disconnecting switch bearing assembly tool further comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is fixedly connected with the first outer ring positioning piece, the first connecting piece is connected with the base of the press, the second connecting piece is fixedly connected with the second outer ring positioning piece, and the second connecting piece is connected with the pressing plate of the press.
As a preferable scheme of the disconnecting switch bearing assembly tool, the disconnecting switch bearing assembly tool further comprises a first locking pin and a second locking pin, wherein the first outer ring positioning piece is provided with a first plug pin, the first connecting piece is provided with a first jack, the first plug pin is inserted into the first jack, and the first locking pin is simultaneously arranged on the first connecting piece and the first plug pin in a penetrating manner; the second outer ring locating piece is provided with a second plug pin, the second connecting piece is provided with a second jack, the second plug pin is inserted into the second jack, and the second locking pin is simultaneously arranged in the second connecting piece and the second plug pin in a penetrating mode.
As a preferable scheme of the disconnecting switch bearing assembly tool, the second connecting piece is fixedly provided with a guide post, the bearing seat is provided with a guide hole, and the guide post is arranged in the guide hole in a sliding penetrating mode.
As a preferred scheme of the isolating switch bearing assembly tool, the isolating switch bearing assembly tool further comprises an elastic piece, wherein the elastic piece is sleeved on the guide post, and two ends of the elastic piece are respectively abutted to the second connecting piece and the bearing seat.
As a preferable scheme of the disconnecting switch bearing assembly tool, the first inner ring positioning piece is provided with a plurality of first through holes, a plurality of first through holes are arranged at intervals, the second inner ring positioning piece is provided with a plurality of second through holes, and a plurality of second through holes are arranged at intervals.
As a preferable scheme of the isolating switch bearing assembly tool, the first outer ring positioning piece is provided with a first positioning surface, the first positioning surface is attached to the inner wall of the outer ring of the upper end bearing, and the first positioning surface is a conical surface; the second outer ring locating piece is provided with a second locating surface, the second locating surface is attached to the inner wall of the outer ring of the lower end bearing, and the second locating surface is a conical surface.
As a preferable scheme of the isolating switch bearing assembly tool, the first outer ring positioning piece is embedded with a plurality of first magnets at intervals, and one surface of each first magnet is flush with the first positioning surface; the second outer ring locating piece is embedded with a plurality of second magnets at intervals, and one surface of each second magnet is flush with the second locating surface.
As a preferable scheme of the isolating switch bearing assembly tool, the first inner ring positioning piece is of an integrated structure; the second inner ring positioning piece is of an integrated structure.
The invention also provides an assembly method, which is applied to the assembly fixture for the disconnecting switch bearing, wherein the first outer ring positioning piece is provided with a first positioning surface, the second outer ring positioning piece is provided with a second positioning surface, the assembly fixture for the disconnecting switch bearing also comprises a first connecting piece and a second connecting piece, and the assembly method comprises the following steps:
the first connecting piece is respectively connected with a base of the press machine and the first outer ring positioning piece, the first outer ring positioning piece penetrates through the outer ring of the upper end bearing, and the first positioning surface is attached to the inner wall of the outer ring of the upper end bearing; the second connecting piece is respectively connected with a pressing plate of the press machine and the second outer ring positioning piece, the second outer ring positioning piece penetrates through the outer ring of the lower end bearing, and the second positioning surface is attached to the inner wall of the outer ring of the lower end bearing; penetrating a guide post on the second connecting piece into a guide hole of the bearing seat, and enabling an elastic piece sleeved on the guide post to support the bearing seat; the pressing plate of the press moves downwards, the outer ring of the upper end bearing and the outer ring of the lower end bearing are pressed into the bearing seat, and the bearing seat, the outer ring of the upper end bearing and the outer ring of the lower end bearing form a first assembly body;
the inner ring of the upper end bearing is sleeved on the rotating shaft for welding, the first inner ring positioning piece is sleeved on the rotating shaft for welding and is abutted against the inner ring of the upper end bearing, a hammer is adopted to strike the first inner ring positioning piece or a press machine is adopted to press the first inner ring positioning piece, so that the first inner ring positioning piece pushes the inner ring of the upper end bearing to a set position, and the rotating shaft for welding and the inner ring of the upper end bearing form a second assembly;
welding the rotating shaft of the second assembly body on the bearing seat of the first assembly body, sleeving the outer ring of the upper end bearing on the inner ring of the upper end bearing under the action of a press, and forming a third assembly body by the first assembly body and the second assembly body;
the inner ring of the lower end bearing is sleeved on the rotating shaft of the third assembly body to be welded, the second inner ring positioning piece is sleeved on the rotating shaft to be welded and abutted to the inner ring of the lower end bearing, and under the action of a press machine, the second inner ring positioning piece pushes the inner ring of the lower end bearing to move, so that the outer ring of the lower end bearing is sleeved on the inner ring of the lower end bearing.
The invention has the beneficial effects that:
the invention provides an assembly fixture and an assembly method of a disconnecting switch bearing, wherein when the assembly fixture of the disconnecting switch bearing is used for assembling an upper end bearing, a lower end bearing, a bearing seat and a rotating shaft by welding, firstly, an outer ring of the upper end bearing, an outer ring of the lower end bearing and the bearing seat are assembled respectively, an inner ring of the upper end bearing and the rotating shaft are assembled by welding, then, a first assembly body formed by the outer ring of the upper end bearing, the outer ring of the lower end bearing and the bearing seat and a second assembly body formed by the inner ring of the upper end bearing and the rotating shaft are assembled into a third assembly body, and finally, the inner ring of the lower end bearing and the third assembly body are assembled. When the outer ring of the upper end bearing and the outer ring of the lower end bearing are assembled with the bearing seat, the first outer ring locating piece is respectively attached to the inner wall of the bearing seat and the inner wall of the outer ring of the upper end bearing, and the first outer ring locating piece is abutted to the upper end face of the outer ring of the upper end bearing, so that coaxiality of the outer ring of the upper end bearing and the bearing seat can be ensured. The second outer ring locating piece is respectively attached to the inner wall of the bearing seat and the inner wall of the outer ring of the lower end bearing, and the second outer ring locating piece is abutted to the lower end face of the outer ring of the lower end bearing, so that coaxiality of the outer ring of the lower end bearing and the bearing seat can be guaranteed. When the inner ring of the upper end bearing and the rotating shaft are assembled, the inner wall of the first inner ring positioning piece is attached to the outer wall of the rotating shaft assembly, the rotating shaft assembly guides the movement of the first inner ring positioning piece, the outer wall of the rotating shaft assembly and the inner wall of the first inner ring positioning piece can be used for positioning during assembly, the end face of the inner ring of the upper end bearing is tightly contacted with the end face of the first inner ring positioning piece, the stress is uniform during pushing, other component forces except axial force are not generated during crimping, and therefore coaxiality of the inner ring of the upper end bearing and the rotating shaft assembly can be guaranteed. When the inner ring of the lower end bearing is assembled with the third assembly body, the inner wall of the second inner ring positioning piece is attached to the outer wall of the rotating shaft welded assembly, and the end face of the inner ring of the lower end bearing is in close contact with the end face of the second inner ring positioning piece, so that the coaxiality of the inner ring of the lower end bearing and the rotating shaft welded assembly can be ensured. The isolating switch bearing assembly fixture is simple in structure, simple in assembly steps of welding an upper end bearing, a lower end bearing, a bearing seat and a rotating shaft, labor intensity of workers is reduced, production system efficiency is improved, coaxiality of welding the upper end bearing, the lower end bearing, the bearing seat and the rotating shaft can be guaranteed, a press machine is used for assembly, a scientific pressure value can be set, assembly reliability is guaranteed, assembly parameters are consistent, and product quality is uniform.
Drawings
FIG. 1 is a schematic view of a portion of a prior art support structure for an isolator;
FIG. 2 is a schematic diagram of a prior art rotary shaft weld of a support structure for an isolator;
FIG. 3 is a schematic view of a bearing housing of a support structure of a prior art disconnector;
FIG. 4 is a schematic view of the structure of the outer race of the upper end bearing of the support structure of the prior art disconnector;
fig. 5 is a schematic view of a part of a structure of an assembly fixture for a bearing of an isolating switch according to an embodiment of the present invention;
FIG. 6 is an enlarged view at A in FIG. 5;
fig. 7 is a schematic structural diagram of a first outer ring positioning member of an assembly fixture for an isolating switch bearing according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a first inner ring positioning member of an assembly fixture for an isolating switch bearing, and an inner ring and a rotating shaft of an upper end bearing, which are welded together according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a first inner ring positioning member of an assembly fixture for an isolating switch bearing according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a second inner ring positioning member of the assembly fixture for the bearing of the disconnecting switch according to the embodiment of the invention.
In the figure:
1. a bearing seat;
2. an upper end bearing; 21. an outer ring of the upper end bearing; 22. an inner ring of the upper end bearing;
3. a lower end bearing; 31. an outer ring of the lower end bearing;
4. welding a rotating shaft;
5. a first outer race positioning member; 51. a first positioning surface; 52. a first magnet;
6. a second outer ring positioning member;
7. a first connector;
8. a second connector;
9. a base of the press;
10. a press plate of a press;
11. a first locking pin;
12. a second locking pin;
13. a first inner ring positioning member; 131. a first through hole;
14. a second inner ring positioning member; 141. a second through hole;
15. a guide post;
16. an elastic member;
17. a gasket;
18. a nut;
19. a fixed plate of the press;
20. a hydraulic cylinder of a press.
Description of the embodiments
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
As shown in fig. 1-4, in the prior art, a supporting structure of a lower end of a conductive rod of a disconnecting switch comprises a porcelain bottle, a rotating shaft welding device 4, a bearing seat 1, an upper end bearing 2, a lower end bearing 3 and a bottom frame, wherein the upper end bearing 2 and the lower end bearing 3 are arranged between the rotating shaft welding device 4 and the bearing seat 1, and the upper end bearing 2 and the lower end bearing 3 are arranged at intervals. After the upper end bearing 2 and the lower end bearing 3 are mounted between the shaft welding 4 and the bearing seat 1, the washer 17 is sleeved on the shaft welding 4 and is abutted against the lower end bearing 3, and then the nut 18 is in threaded connection with the shaft welding 4, and the nut 18 is abutted against the washer 17. The performance of the disconnector may be affected if the upper end bearing 2, the lower end bearing 3, the shaft welds 4 and the bearing housing 1 are not assembled in place. At present, manual assembly is adopted, however, the manual assembly easily causes inconsistent assembly parameters, the opening and closing performance of the isolating switch is affected, the labor intensity of workers is high, the operation difficulty is high, and the production efficiency is low.
Therefore, the assembly fixture and the assembly method for the disconnecting switch bearing are simple in structure, simple in assembly steps of welding the upper end bearing, the lower end bearing, the bearing seat and the rotating shaft, capable of reducing labor intensity of workers, improving production efficiency, capable of guaranteeing coaxiality of welding the upper end bearing, the lower end bearing, the bearing seat and the rotating shaft, capable of setting scientific pressure values, capable of guaranteeing assembly reliability, consistent in assembly parameters and uniform in product quality, and capable of being assembled by using a press machine.
As shown in fig. 4-10, the isolating switch bearing assembly fixture is used for assembling an upper end bearing 2 and a lower end bearing 3 between a bearing seat 1 and a rotating shaft welding device 4, the isolating switch bearing assembly fixture comprises a first outer ring positioning member 5, a second outer ring positioning member 6, a first inner ring positioning member 13 and a second inner ring positioning member 14, the first outer ring positioning member 5 can be partially penetrated into the bearing seat 1, the other part is penetrated into an outer ring 21 of the upper end bearing and is respectively jointed with the inner wall of the bearing seat 1 and the inner wall of the outer ring 21 of the upper end bearing, the first outer ring positioning member 5 can be abutted with the upper end surface of the outer ring 21 of the upper end bearing, the second outer ring positioning member 6 can be partially penetrated into the bearing seat 1, the other part is penetrated into the outer ring 31 of the lower end bearing and is respectively abutted with the inner wall of the outer ring 31 of the bearing seat 1, the second outer ring positioning member 6 can be abutted with the lower end surface of the outer ring 31 of the lower end bearing, the inner ring 22 of the upper end bearing is sleeved into the rotating shaft welding device 4, the first inner ring positioning member 13 can be sleeved into the rotating shaft welding device 4, the inner ring positioning member 13 can be respectively abutted with the inner ring 14 of the rotating shaft of the lower end bearing, and the inner ring positioning member can be abutted with the outer ring 14 of the rotating shaft of the upper end bearing 4 can be welded, and the second positioning member is abutted with the inner ring 14 of the rotating shaft positioning member is abutted with the inner ring 14.
It can be understood that the upper end bearing 2 is split into two parts, one part is an outer ring 21 of the upper end bearing, and the other part is an inner ring 22 of the upper end bearing, which is composed of an inner ring body of the upper end bearing, balls and a ball support; the lower end bearing is split into two parts, one part is an outer ring 31 of the lower end bearing, and the other part is an inner ring of the lower end bearing, which consists of an inner ring body of the lower end bearing, balls and a ball support.
When the disconnecting switch bearing assembly fixture is used for assembling the upper end bearing 2, the lower end bearing 3, the bearing seat 1 and the rotating shaft welding 4, firstly, the outer ring 21 of the upper end bearing and the outer ring 31 of the lower end bearing are assembled with the bearing seat 1, the inner ring 22 of the upper end bearing and the rotating shaft welding 4 are assembled, then, a first assembly body formed by the outer ring 21 of the upper end bearing, the outer ring 31 of the lower end bearing and the bearing seat 1 and a second assembly body formed by the inner ring 22 of the upper end bearing and the rotating shaft welding 4 are assembled into a third assembly body, and finally, the inner ring of the lower end bearing is assembled with the third assembly body.
Specifically, as shown in fig. 5, when the outer ring 21 of the upper end bearing and the outer ring 31 of the lower end bearing are assembled with the bearing seat 1, under the pressure of the press, the first outer ring positioning member 5 pushes the outer ring 21 of the upper end bearing to move downwards, so that the outer ring 21 of the upper end bearing penetrates through the bearing seat 1 and moves to a corresponding position, after the outer ring 21 of the upper end bearing is assembled to the corresponding position of the bearing seat 1, the outer ring 21 of the upper end bearing and the bearing seat 1 are relatively stationary, the first outer ring positioning member 5 pushes the outer ring 21 of the upper end bearing and the bearing seat 1 to move downwards together, the bearing seat 1 is sleeved on the outer ring 31 of the lower end bearing, and the outer ring 31 of the lower end bearing moves upwards relative to the bearing seat 1, so that the assembly of the outer ring 31 of the lower end bearing and the bearing seat 1 is completed. During assembly, the first outer ring locating piece 5 is respectively attached to the inner wall of the bearing seat 1 and the inner wall of the outer ring 21 of the upper end bearing, and the first outer ring locating piece 5 is abutted to the upper end face of the outer ring 21 of the upper end bearing, so that coaxiality between the outer ring 21 of the upper end bearing and the bearing seat 1 can be ensured. The second outer ring locating piece 6 is respectively attached to the inner wall of the bearing seat 1 and the inner wall of the outer ring 31 of the lower end bearing, and the second outer ring locating piece 6 is abutted to the lower end face of the outer ring 31 of the lower end bearing, so that coaxiality between the outer ring 31 of the lower end bearing and the bearing seat 1 can be guaranteed.
As shown in fig. 8, when the inner ring 22 of the upper end bearing and the rotating shaft welding 4 are assembled, the inner ring 22 of the upper end bearing is sleeved on the rotating shaft welding 4, the first inner ring positioning member 13 is sleeved on the rotating shaft welding 4, and the first inner ring positioning member 13 is abutted with the end face of the inner ring 22 of the upper end bearing. Under the action of the press, the first inner ring positioning piece 13 is pressed towards the direction close to the inner ring 22 of the upper end bearing, so that the first inner ring positioning piece 13 pushes the inner ring 22 of the upper end bearing to be assembled on the rotating shaft for welding. During assembly, as the inner wall of the first inner ring positioning piece 13 is attached to the outer wall of the rotating shaft welding piece 4, the rotating shaft welding piece 4 guides the movement of the first inner ring positioning piece 13, the outer wall of the rotating shaft welding piece 4 and the inner wall of the first inner ring positioning piece 13 can be used for positioning during assembly, the end face of the inner ring 22 of the upper end bearing is tightly contacted with the end face of the first inner ring positioning piece 13, the stress in the pushing process is uniform, other component forces except axial force are not generated during the compression joint, and therefore the coaxiality of the inner ring 22 of the upper end bearing and the rotating shaft welding piece 4 can be ensured.
When the inner ring of the lower end bearing is assembled with the third assembly body, the inner ring of the lower end bearing is sleeved on the rotating shaft welding 4, the second inner ring positioning piece 14 can be sleeved on the rotating shaft welding 4, and the second inner ring positioning piece 14 can be abutted with the end face of the inner ring of the lower end bearing. Under the action of the press, the second inner ring positioning piece 14 is pressed towards the direction close to the inner ring of the lower end bearing, so that the second inner ring positioning piece 14 pushes the inner ring of the lower end bearing to be assembled on the rotating shaft of the third assembly body for welding. During assembly, as the inner wall of the second inner ring positioning piece 14 is attached to the outer wall of the rotating shaft welding device 4, the end face of the inner ring of the lower end bearing is tightly contacted with the end face of the second inner ring positioning piece 14, the stress is uniform in the pushing process, other component forces except for axial force are not generated during crimping, and therefore coaxiality of the inner ring of the lower end bearing and the rotating shaft welding device 4 can be guaranteed.
Alternatively, as shown in fig. 7, the first outer ring positioning member 5 has a first positioning surface 51, the first positioning surface 51 is attached to the inner wall of the outer ring 21 of the upper end bearing, and the first positioning surface 51 is a conical surface; the second outer ring positioning member 6 has a second positioning surface, which is attached to the inner wall of the outer ring 31 of the lower end bearing, and is a conical surface. It will be appreciated that the inner wall of the outer race 21 of the upper end bearing and the inner wall of the outer race 31 of the lower end bearing are tapered as well. Because the first positioning surface 51 is a conical surface, the center of the outer ring 21 of the upper end bearing is easy to position, the first outer ring positioning piece 5 and the outer ring 21 of the upper end bearing are coaxial under the guiding action of the conical surface in the pressing process, and because the first outer ring positioning piece 5 is attached to the inner wall of the bearing seat 1 and the first outer ring positioning piece 5 is coaxial with the bearing seat 1, the outer ring 21 of the upper end bearing is coaxial with the bearing seat 1 and can be automatically aligned, the whole first positioning surface 51 is stressed, the force application points of the force can be effectively dispersed, the local pressure is lightened, and the balance of the force is ensured; similarly, since the second positioning surface is a conical surface, the outer ring 31 of the lower end bearing is easily coaxial with the bearing seat 1, and pressure distribution is ensured to be balanced.
Alternatively, as shown in fig. 7, the first outer ring positioning member 5 is provided with a plurality of first magnets 52 in a spaced-apart manner, and one surface of the first magnets 52 is flush with the first positioning surface 51; the second outer ring positioning piece 6 is embedded with a plurality of second magnets at intervals, and one surface of each second magnet is flush with the second positioning surface. The first magnet 52 can magnetically attract the outer ring 21 of the upper end bearing, so that the outer ring 21 of the upper end bearing is fixed to the first outer ring positioning member 5, and the second magnet can magnetically attract the outer ring 31 of the lower end bearing, so that the outer ring 31 of the lower end bearing is fixed to the second outer ring positioning member 6.
Optionally, the isolating switch bearing assembly fixture further comprises a first connecting piece 7 and a second connecting piece 8, wherein the first connecting piece 7 is fixedly connected with the first outer ring positioning piece 5, the first connecting piece 7 is connected with a base 9 of the press, the second connecting piece 8 is fixedly connected with the second outer ring positioning piece 6, and the second connecting piece 8 is connected with a pressing plate 10 of the press. The first outer ring positioning member 5 is connected with a pressing plate 10 of the press through a first connecting member 7, and the second outer ring positioning member 6 is connected with a base 9 of the press through a second connecting member 8. Optionally, the hydraulic cylinder 20 of the press is fixedly arranged on the fixed plate 19 of the press, the output end of the hydraulic cylinder 20 of the press is in transmission connection with the pressing plate 10 of the press, an upper oil pipe of the press and a lower oil pipe of the press are used for transmitting hydraulic oil, and the hydraulic cylinder 20 of the press can drive the pressing plate 10 of the press to move between the fixed plate 19 of the press and the base 9 of the press along the vertical direction.
Optionally, as shown in fig. 5, the assembly fixture for the disconnecting switch bearing further includes a first locking pin 11 and a second locking pin 12, the first outer ring positioning member 5 is provided with a first plug pin, the first connecting member 7 is provided with a first jack, the first plug pin is inserted into the first jack, and the first locking pin 11 is simultaneously arranged through the first connecting member 7 and the first plug pin; the second outer circle positioning piece 6 is provided with a second plug pin, the second connecting piece 8 is provided with a second jack, the second plug pin is inserted into the second jack, and the second locking pin 12 is simultaneously arranged through the second connecting piece 8 and the second plug pin. The first connecting piece 7 is locked with the first outer ring positioning piece 5 by a first locking pin 11, and the second connecting piece 8 is locked with the second outer ring positioning piece 6 by a second locking pin 12.
Optionally, the second connecting piece 8 is fixedly provided with a guide post 15, the bearing seat 1 is provided with a guide hole, and the guide post 15 is slidably arranged in the guide hole. The guide posts 15 guide the movement of the bearing 1. Alternatively, the number of the guide posts 15 is two, and the two guide posts 15 are arranged at intervals.
Optionally, the assembly fixture for the disconnecting switch bearing further comprises an elastic piece 16, the elastic piece 16 is sleeved on the guide post 15, and two ends of the elastic piece 16 are respectively abutted to the second connecting piece 8 and the bearing seat 1. The elastic member 16 can support the bearing housing 1 to be compressed as the bearing housing 1 moves downward. Alternatively, the elastic member 16 is a spring. Alternatively, the number of the elastic members 16 is two, and the two elastic members 16 are respectively sleeved on the two guide posts 15.
Alternatively, the first inner ring positioning member 13 is provided with a plurality of first through holes 131, the plurality of first through holes 131 are arranged at intervals, and the second inner ring positioning member 14 is provided with a plurality of second through holes 141, and the plurality of second through holes 141 are arranged at intervals. When the first inner ring positioning piece 13 is sleeved on the rotating shaft welding 4 and is pressed by the press, air between the first inner ring positioning piece 13 and the rotating shaft welding 4 can be discharged from the first through hole 131, so that the first inner ring positioning piece 13 can be ensured to smoothly push the inner ring 22 of the upper end bearing to move. Similarly, when the second inner ring positioning member 14 is sleeved on the rotating shaft welding device 4 and is pressed by the press, air between the second inner ring positioning member 14 and the rotating shaft welding device 4 can be discharged from the second through hole 141, so that the second inner ring positioning member 14 can smoothly push the inner ring of the lower end bearing to move.
Alternatively, the first inner ring positioning member 13 is an integrally formed structure; the second inner race positioning member 14 is an integrally formed structure. The first inner ring positioning piece 13 is of an integrated structure, and the inner wall of the first inner ring positioning piece 13 can be vertical to the end face of the first inner ring positioning piece 13. Because the inner wall of the first inner ring positioning piece 13 is attached to the outer wall of the rotating shaft welding 4, the first inner ring positioning piece 13 and the rotating shaft welding 4 are coaxially arranged, and because the end face of the first inner ring positioning piece 13 is abutted to the end face of the inner ring 22 of the upper end bearing, the inner wall of the first inner ring positioning piece 13 is perpendicular to the end face of the first inner ring positioning piece 13, the inner ring 22 of the upper end bearing and the rotating shaft welding 4 can be coaxially arranged, and the coaxiality is high. Similarly, the second inner ring positioning piece 14 is of an integrated structure, so that the inner wall of the second inner ring positioning piece 14 is vertical to the end face of the second inner ring positioning piece 14, and the inner ring of the lower end bearing and the rotating shaft welding 4 are coaxially arranged.
The invention also provides an assembly method, which applies the assembly fixture for the disconnecting switch bearing, wherein the first outer ring positioning piece 5 is provided with a first positioning surface 51, the second outer ring positioning piece 6 is provided with a second positioning surface, the assembly fixture for the disconnecting switch bearing also comprises a first connecting piece 7 and a second connecting piece 8, and the assembly method comprises the following steps:
the first connecting piece 7 is respectively connected with the base 9 and the first outer ring positioning piece 5 of the press, the first outer ring positioning piece 5 is arranged on the outer ring 21 of the upper end bearing in a penetrating way, and the first positioning surface 51 is attached to the inner wall of the outer ring 21 of the upper end bearing; the second connecting piece 8 is respectively connected with a pressing plate 10 and a second outer ring positioning piece 6 of the press, the second outer ring positioning piece 6 is arranged on an outer ring 31 of the lower end bearing in a penetrating way, and a second positioning surface is attached to the inner wall of the outer ring 31 of the lower end bearing; the guide post 15 on the second connecting piece 8 is penetrated through the guide hole of the bearing seat 1, and the elastic piece 16 sleeved on the guide post 15 supports the bearing seat 1; the pressing plate 10 of the press moves downwards, the outer ring 21 of the upper end bearing and the outer ring 31 of the lower end bearing are pressed into the bearing seat 1 in a uniform pressure mode, and the bearing seat 1, the outer ring 21 of the upper end bearing and the outer ring 31 of the lower end bearing form a first assembly;
sleeving the inner ring 22 of the upper end bearing on the rotating shaft welding 4, sleeving the first inner ring positioning piece 13 on the rotating shaft welding 4 and abutting against the inner ring 22 of the upper end bearing, knocking the first inner ring positioning piece 13 by a hammer or pressing the first inner ring positioning piece 13 by a press machine so that the first inner ring positioning piece 13 pushes the inner ring 22 of the upper end bearing to a set position, and forming a second assembly body by the rotating shaft welding 4 and the inner ring 22 of the upper end bearing;
the rotating shaft welding 4 of the second assembly body is penetrated through the bearing seat 1 of the first assembly body, the outer ring 21 of the upper end bearing is sleeved on the inner ring 22 of the upper end bearing under the action of a press, and the first assembly body and the second assembly body form a third assembly body;
the inner ring of the lower end bearing is sleeved on the rotating shaft welding 4 of the third assembly body, the second inner ring positioning piece 14 is sleeved on the rotating shaft welding 4 and is abutted with the inner ring of the lower end bearing, and under the action of the press machine, the second inner ring positioning piece 14 pushes the inner ring of the lower end bearing to move, so that the outer ring 31 of the lower end bearing is sleeved on the inner ring of the lower end bearing.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. An isolating switch bearing assembly fixture for assemble upper end bearing (2) and lower end bearing (3) between bearing frame (1) and pivot welding (4), its characterized in that includes:
the first outer ring positioning piece (5) can be partially penetrated into the bearing seat (1), the other part of the first outer ring positioning piece (5) is penetrated into the outer ring (21) of the upper end bearing and is respectively attached to the inner wall of the bearing seat (1) and the inner wall of the outer ring (21) of the upper end bearing, and the first outer ring positioning piece (5) can be abutted with the upper end surface of the outer ring (21) of the upper end bearing;
the second outer ring positioning piece (6) can be partially penetrated into the bearing seat (1), the other part of the second outer ring positioning piece (6) is penetrated into the outer ring (31) of the lower end bearing and is respectively attached to the inner wall of the bearing seat (1) and the inner wall of the outer ring (31) of the lower end bearing, and the second outer ring positioning piece (6) can be abutted with the lower end face of the outer ring (31) of the lower end bearing;
the inner ring (22) of the upper end bearing is sleeved on the rotating shaft welding device (4), the first inner ring positioning piece (13) can be sleeved on the rotating shaft welding device (4), the inner wall of the first inner ring positioning piece (13) is attached to the outer wall of the rotating shaft welding device (4), and the first inner ring positioning piece (13) can be abutted to the end face of the inner ring (22) of the upper end bearing;
the second inner ring locating piece (14), the inner ring cover of lower extreme bearing is located pivot welding dress (4), second inner ring locating piece (14) can overlap and locate pivot welding dress (4), just the inner wall of second inner ring locating piece (14) with the laminating of the outer wall of pivot welding dress (4), second inner ring locating piece (14) can with the terminal surface butt of the inner ring of lower extreme bearing.
2. The disconnecting switch bearing assembly tool according to claim 1, further comprising a first connecting piece (7) and a second connecting piece (8), wherein the first connecting piece (7) is fixedly connected with the first outer ring positioning piece (5), the first connecting piece (7) is connected with a base (9) of a press, the second connecting piece (8) is fixedly connected with the second outer ring positioning piece (6), and the second connecting piece (8) is connected with a pressing plate (10) of the press.
3. The disconnecting switch bearing assembly tool according to claim 2, further comprising a first locking pin (11) and a second locking pin (12), wherein the first outer ring positioning piece (5) is provided with a first plug pin, the first connecting piece (7) is provided with a first jack, the first plug pin is inserted into the first jack, and the first locking pin (11) is simultaneously arranged on the first connecting piece (7) and the first plug pin in a penetrating manner; the second outer ring locating piece (6) is provided with a second plug pin, the second connecting piece (8) is provided with a second jack, the second plug pin is inserted into the second jack, and the second locking pin (12) is simultaneously arranged in the second connecting piece (8) in a penetrating mode and the second plug pin.
4. Disconnecting switch bearing assembly tool according to claim 2, characterized in that the second connecting piece (8) is fixedly provided with a guide post (15), the bearing seat (1) is provided with a guide hole, and the guide post (15) is slidably arranged in the guide hole.
5. The disconnecting switch bearing assembly tool according to claim 4, further comprising an elastic piece (16), wherein the elastic piece (16) is sleeved on the guide post (15), and two ends of the elastic piece (16) are respectively abutted to the second connecting piece (8) and the bearing seat (1).
6. The disconnecting switch bearing assembly tool according to claim 1, wherein the first inner ring positioning member (13) is provided with a plurality of first through holes (131), a plurality of first through holes (131) are arranged at intervals, the second inner ring positioning member (14) is provided with a plurality of second through holes (141), and a plurality of second through holes (141) are arranged at intervals.
7. The disconnecting switch bearing assembly tool according to claim 1, wherein the first outer ring positioning piece (5) is provided with a first positioning surface (51), the first positioning surface (51) is attached to the inner wall of the outer ring (21) of the upper end bearing, and the first positioning surface (51) is a conical surface; the second outer ring locating piece (6) is provided with a second locating surface, the second locating surface is attached to the inner wall of the outer ring (31) of the lower end bearing, and the second locating surface is a conical surface.
8. The isolating switch bearing assembly fixture according to claim 7, wherein a plurality of first magnets (52) are embedded in the first outer ring positioning piece (5) at intervals, and one surface of each first magnet (52) is flush with the first positioning surface (51); the second outer ring locating piece (6) is embedded with a plurality of second magnets at intervals, and one surface of each second magnet is flush with the second locating surface.
9. The disconnecting switch bearing assembly tool according to claim 1, wherein the first inner ring positioning member (13) is of an integrally formed structure; the second inner ring positioning piece (14) is of an integrated structure.
10. A method of assembling a disconnector bearing assembly according to any of claims 1-9, said first outer ring positioning member (5) having a first positioning surface (51) and said second outer ring positioning member (6) having a second positioning surface, said disconnector bearing assembly further comprising a first connector (7) and a second connector (8), said method of assembling comprising:
the first connecting piece (7) is respectively connected with a base (9) of the press and the first outer ring positioning piece (5), the first outer ring positioning piece (5) penetrates through the outer ring (21) of the upper end bearing, and the first positioning surface (51) is attached to the inner wall of the outer ring (21) of the upper end bearing; the second connecting piece (8) is respectively connected with a pressing plate (10) of the press machine and the second outer ring positioning piece (6), the second outer ring positioning piece (6) penetrates through the outer ring (31) of the lower end bearing, and the second positioning surface is attached to the inner wall of the outer ring (31) of the lower end bearing; a guide post (15) on the second connecting piece (8) is penetrated through a guide hole of the bearing seat (1), and an elastic piece (16) sleeved on the guide post (15) supports the bearing seat (1); the pressing plate (10) of the press moves downwards, the outer ring (21) of the upper end bearing and the outer ring (31) of the lower end bearing are pressed into the bearing seat (1), and the bearing seat (1), the outer ring (21) of the upper end bearing and the outer ring (31) of the lower end bearing form a first assembly body;
the inner ring (22) of the upper end bearing is sleeved on the rotating shaft welding device (4), the first inner ring positioning piece (13) is sleeved on the rotating shaft welding device (4) and is abutted against the inner ring (22) of the upper end bearing, the first inner ring positioning piece (13) is knocked by a hammer or pressed by a press machine, so that the first inner ring positioning piece (13) pushes the inner ring (22) of the upper end bearing to a set position, and the rotating shaft welding device (4) and the inner ring (22) of the upper end bearing form a second assembly body;
the rotating shaft welding device (4) of the second assembly body is penetrated through the bearing seat (1) of the first assembly body, the outer ring (21) of the upper end bearing is sleeved on the inner ring (22) of the upper end bearing under the action of a press, and the first assembly body and the second assembly body form a third assembly body;
the inner ring of the lower end bearing is sleeved on the rotating shaft welding device (4) of the third assembly body, the second inner ring positioning piece (14) is sleeved on the rotating shaft welding device (4) and is abutted to the inner ring of the lower end bearing, and under the action of a press machine, the second inner ring positioning piece (14) pushes the inner ring of the lower end bearing to move, so that the outer ring (31) of the lower end bearing is sleeved on the inner ring of the lower end bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210423025.7A CN114871990B (en) | 2022-04-21 | 2022-04-21 | Disconnecting switch bearing assembly tool and assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210423025.7A CN114871990B (en) | 2022-04-21 | 2022-04-21 | Disconnecting switch bearing assembly tool and assembly method |
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| CN114871990A CN114871990A (en) | 2022-08-09 |
| CN114871990B true CN114871990B (en) | 2023-05-23 |
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| CN2701593Y (en) * | 2004-04-06 | 2005-05-25 | 江苏省机电研究所有限公司 | Pressure head and sleeve for mounting tapered roller bearing |
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| CN114871990A (en) | 2022-08-09 |
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