CN114871990A - Isolating switch bearing assembling tool and assembling method - Google Patents
Isolating switch bearing assembling tool and assembling method Download PDFInfo
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- CN114871990A CN114871990A CN202210423025.7A CN202210423025A CN114871990A CN 114871990 A CN114871990 A CN 114871990A CN 202210423025 A CN202210423025 A CN 202210423025A CN 114871990 A CN114871990 A CN 114871990A
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- outer ring
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- end bearing
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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 tool and an assembly method for 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, the second outer ring positioning piece can penetrate 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, the first inner ring positioning piece can be sleeved on the rotating shaft for welding and assembling, the inner wall of the first inner ring positioning piece is attached to the outer wall of the rotating shaft welding device, the first inner ring positioning piece can be abutted against the end face of the inner ring of the upper end bearing, the second inner ring positioning piece can be sleeved on the rotating shaft welding device, and the inner wall of the second inner ring positioning piece is attached to the outer wall welded with the rotating shaft, and the second inner ring positioning piece can be 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 can be ensured.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to an isolating switch bearing assembling tool and an assembling method.
Background
The isolating switch is one of the most used high-voltage switch electric appliances and plays an isolating role in a circuit. The working principle and the structure of the transformer substation are simple, but the use amount is large, the requirement on the working reliability is high, and the influence on the design, the establishment and the safe operation of a transformer substation and a power plant is large. The high-voltage isolating switch is used for switching on and off a circuit in a no-load state, safely isolating and repairing equipment and a switching circuit, and can reliably pass rated current in an operating state. GW27 series isolator is a double-break isolator, and drives the conducting rod to rotate horizontally through mechanism power, then the mechanism continues to move, the conducting rod rotates along the axis of the conducting rod, the closing operation is completed, in order to ensure the smoothness of the whole moving process, as shown in figures 1-4, the supporting structure of the lower end of the conducting rod 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 an underframe, 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. If the upper end bearing 2, the lower end bearing 3, the rotating shaft welding 4 and the bearing seat 1 are not assembled in place, the performance of the isolating switch can be influenced. In the prior art, manual assembly is adopted, however, manual assembly easily leads to inconsistent assembly parameters, the product quality is not uniform, a few assembly gaps in the later period are large, a few assembly gaps are small, the isolating switch is shaken under the action of the gravity of the porcelain insulator, the opening and closing performance of the isolating switch is influenced, the labor intensity of workers is high, the operation difficulty is large, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide an isolating switch bearing assembling tool and an isolating switch bearing assembling method, and aims to solve the problems that manual assembly is adopted for assembling an upper end bearing, a lower end bearing, a rotating shaft and a bearing seat, so that the assembling parameters are inconsistent, the opening and closing performance of an isolating switch is influenced, the labor intensity of workers is high, the operation difficulty is high, and the production efficiency is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an isolator bearing assembly fixture for with upper end bearing and lower extreme bearing assembly between bearing frame and pivot weld dress, it includes:
the first outer ring positioning piece can be partially penetrated in the bearing seat, the other part of the first outer ring positioning piece is penetrated in the outer ring of the upper end bearing and 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 to the upper end face of the outer ring of the upper end bearing;
the second outer ring positioning piece can be partially arranged in the bearing seat in a penetrating way, the other part of the second outer ring positioning piece is arranged in the outer ring of the lower end bearing in a penetrating way 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 against the lower end face of the outer ring of the lower end bearing;
the inner ring of the upper end bearing is sleeved on the rotating shaft welding device, the first inner ring positioning piece can be sleeved on the rotating shaft welding device, the inner wall of the first inner ring positioning piece is attached to the outer wall of the rotating shaft welding device, and the first inner ring positioning piece can be abutted against the end face of the inner ring of the upper end bearing;
the inner ring positioning piece of lower extreme bearing is located the pivot is welded and is adorned, second inner ring positioning piece can overlap and locate the pivot is welded and is adorned, just the inner wall of second inner ring positioning piece with the outer wall laminating that the pivot was welded and is adorned, second inner ring positioning piece can with the terminal surface butt of the inner circle of lower extreme bearing.
As an optimal scheme of the isolating switch bearing assembling tool, the isolating switch bearing assembling 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 a base of a press machine, the second connecting piece is fixedly connected with the second outer ring positioning piece, and the second connecting piece is connected with a pressing plate of the press machine.
As a preferable scheme of the isolating switch bearing assembling tool, the isolating switch bearing assembling tool further comprises a first locking pin and a second locking pin, wherein a first bolt is arranged on the first outer ring positioning piece, a first jack is arranged on the first connecting piece, the first bolt is inserted into the first jack, and the first locking pin penetrates through the first connecting piece and the first bolt simultaneously; the second outer ring positioning piece is provided with a second bolt, the second connecting piece is provided with a second jack, the second bolt is inserted into the second jack, and the second locking pin simultaneously penetrates through the second connecting piece and the second bolt.
As an optimal scheme of the isolating 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 penetrates through the guide hole in a sliding manner.
As an optimal scheme of the isolating switch bearing assembly tool, the isolating switch bearing assembly tool further comprises an elastic piece, the elastic piece is sleeved on the guide column, and two ends of the elastic piece are respectively abutted to the second connecting piece and the bearing seat.
As an optimized scheme of the isolating switch bearing assembly tool, the first inner ring positioning piece is provided with a plurality of first through holes, the first through holes are arranged at intervals, the second inner ring positioning piece is provided with a plurality of second through holes, and the second through holes are arranged at intervals.
As a preferred 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 positioning piece is provided with a second positioning surface, the second positioning surface is attached to the inner wall of the outer ring of the lower end bearing, and the second positioning surface is a conical surface.
As a preferred scheme of the isolating switch bearing assembly tool, a plurality of first magnets are embedded in the first outer ring positioning piece at intervals, and one surface of each first magnet is flush with the first positioning surface; and a plurality of second magnets are embedded in the second outer ring positioning piece at intervals, and one surface of each second magnet is flush with the second positioning surface.
As a preferred scheme of the isolating switch bearing assembly tool, the first inner ring positioning piece is of an integrally formed structure; the second inner ring positioning piece is of an integrally formed structure.
The invention also provides an assembly method, which applies the isolating switch bearing assembly tool, 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 isolating switch bearing assembly tool further comprises a first connecting piece and a second connecting piece, and the assembly method comprises the following steps:
connecting the first connecting piece with a base of a press machine and the first outer ring positioning piece respectively, wherein the first outer ring positioning piece is arranged on the outer ring of the upper end bearing in a penetrating manner, 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 a press machine and a 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; a press plate of the press machine moves downwards, an outer ring of the upper end bearing and an 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;
sleeving the inner ring of the upper end bearing on the rotating shaft welding device, sleeving a first inner ring positioning piece on the rotating shaft welding device and abutting against the inner ring of the upper end bearing, knocking the first inner ring positioning piece by using a hammer or pressing the first inner ring positioning piece by using a press machine so as to enable the first inner ring positioning piece to push the inner ring of the upper end bearing to a set position, and forming a second assembly body by the rotating shaft welding device and the inner ring of the upper end bearing;
welding the rotating shaft of the second assembly body to penetrate through the bearing seat of the first assembly body, and sleeving an outer ring of the upper end bearing on an inner ring of the upper end bearing under the action of a press machine, wherein the first assembly body and the second assembly body form a third assembly body;
and the inner ring sleeve of the lower end bearing is arranged on the rotating shaft welding device of the third assembly body, the second inner ring positioning piece sleeve is arranged on the rotating shaft welding device and abutted against 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 sleeve of the lower end bearing is arranged on the inner ring of the lower end bearing.
The invention has the beneficial effects that:
the invention provides an isolating switch bearing assembly tool and an assembly method, when an upper end bearing, a lower end bearing, a bearing seat and a rotating shaft are welded and assembled by adopting the isolating switch bearing assembly tool, an outer ring of the upper end bearing, an outer ring of the lower end bearing and the bearing seat are respectively assembled, an inner ring of the upper end bearing and the rotating shaft are welded and assembled, then a first assembly body consisting of 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 consisting of the inner ring of the upper end bearing and the rotating shaft are welded and 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, the outer ring of the lower end bearing and the bearing seat are assembled, the first outer ring positioning 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 positioning piece is abutted to the upper end face of the outer ring of the upper end bearing, so that the coaxiality of the outer ring of the upper end bearing and the bearing seat can be guaranteed. The second outer ring positioning 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 positioning piece is abutted to the lower end face of the outer ring of the lower end bearing, so that the coaxiality of the outer ring of the lower end bearing and the bearing seat can be guaranteed. When the inner ring and the rotating shaft of the upper end bearing are welded and assembled, the inner wall of the first inner ring positioning piece is attached to the outer wall of the rotating shaft welding piece, the rotating shaft welding piece guides the movement of the first inner ring positioning piece, the outer wall of the rotating shaft welding piece and the inner wall of the first inner ring positioning piece can be positioned during assembly, the end face of the inner ring of the upper end bearing is in close contact with the end face of the first inner ring positioning piece, the stress is uniform in the pushing process, and other component forces except the axial force are not generated during crimping, so that the coaxiality of the inner ring of the upper end bearing and the rotating shaft welding piece can be ensured. 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 welding device, 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, and the coaxiality of the inner ring of the lower end bearing and the rotating shaft welding device can be guaranteed. This isolator bearing assembly fixture's simple structure welds the step of dress carrying out the assembly to upper end bearing, lower extreme bearing, bearing frame and pivot and simple, reduces workman's intensity of labour, improves production system efficiency, and can guarantee the axiality that upper end bearing, lower extreme bearing, bearing frame and pivot were welded, uses the press to assemble, can set for scientific pressure value, guarantees the reliability of assembly, and assembly parameter is unanimous, and product quality is unified.
Drawings
Fig. 1 is a partial schematic structural view of a support structure of a prior art disconnector;
FIG. 2 is a schematic structural view of a rotary shaft welding of a support structure of a disconnecting switch in the prior art;
FIG. 3 is a schematic view of a prior art bearing housing of a support structure for a disconnector;
FIG. 4 is a schematic view of the outer race of the upper bearing of the support structure of the prior art isolator;
fig. 5 is a schematic structural diagram of a part of a disconnecting switch bearing assembling tool provided in 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 element of the isolating switch bearing assembling tool according to the specific embodiment of the present invention;
fig. 8 is a schematic structural diagram of a first inner ring positioning element of the isolating switch bearing assembling tool, which is provided by the specific embodiment of the present invention, and an inner ring of an upper end bearing and a rotating shaft are welded and assembled;
fig. 9 is a schematic structural diagram of a first inner ring positioning element of the isolating switch bearing assembling tool according to the specific embodiment of the present invention;
fig. 10 is a schematic structural diagram of a second inner race positioning element of the isolator bearing assembling tool according to the embodiment of the present 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 race of the upper end bearing;
3. a lower end bearing; 31. an outer ring of the lower end bearing;
4. welding the rotating shaft;
5. a first outer race positioning member; 51. a first positioning surface; 52. a first magnet;
6. a second outer ring positioner;
7. a first connecting member;
8. a second connecting member;
9. a base of the press;
10. a press plate of the press;
11. a first locking pin;
12. a second locking pin;
13. a first inner race positioning member; 131. a first through hole;
14. a second inner race 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 machine;
20. a hydraulic cylinder of the press;
21. an upper end oil pipe of the press machine;
22. the lower end oil pipe of the press machine.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1-4, in the prior art, the support structure at the lower end of the conducting rod of the isolating switch comprises a porcelain insulator, a rotating shaft welding device 4, a bearing seat 1, an upper end bearing 2, a lower end bearing 3 and an underframe, 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 installed between the rotating shaft welding 4 and the bearing seat 1, the washer 17 is sleeved on the rotating shaft welding 4 and is abutted against the lower end bearing 3, then the nut 18 is screwed with the rotating shaft welding 4, and the nut 18 is abutted against the washer 17. If the upper end bearing 2, the lower end bearing 3, the rotating shaft welding 4 and the bearing seat 1 are not assembled in place, the performance of the isolating switch can be influenced. At present, manual assembly is adopted, however, 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 isolating switch bearing assembling tool and the assembling method are simple in structure, the welding assembling steps of the upper end bearing, the lower end bearing, the bearing seat and the rotating shaft are simple, the labor intensity of workers is reduced, the production system efficiency is improved, the welding coaxiality of the upper end bearing, the lower end bearing, the bearing seat and the rotating shaft can be guaranteed, the assembling is carried out by using a press machine, a scientific pressure value can be set, the assembling reliability is guaranteed, the assembling parameters are consistent, and the product quality is uniform.
As shown in fig. 4-10, the assembly fixture for the isolating switch bearing 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, and comprises a first outer ring positioning piece 5, a second outer ring positioning piece 6, a first inner ring positioning piece 13 and a second inner ring positioning piece 14, wherein one part of the first outer ring positioning piece 5 can penetrate through the bearing seat 1, the other part of the first outer ring positioning piece can penetrate through an 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, the first outer ring positioning piece 5 can be abutted against the upper end face of the outer ring 21 of the upper end bearing, one part of the second outer ring positioning piece 6 can penetrate through the bearing seat 1, the other part of the second outer ring positioning piece 6 can penetrate through an 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 against 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 element 13 can be sleeved on the rotating shaft welding device 4, the inner wall of the first inner ring positioning element 13 is attached to the outer wall of the rotating shaft welding device 4, the first inner ring positioning element 13 can be abutted to the end face of the inner ring 22 of the upper end bearing, the inner ring of the lower end bearing is sleeved on the rotating shaft welding device 4, the second inner ring positioning element 14 can be sleeved on the rotating shaft welding device 4, the inner wall of the second inner ring positioning element 14 is attached to the outer wall of the rotating shaft welding device 4, and the second inner ring positioning element 14 can be abutted to the end face of the inner ring of the lower end bearing.
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 is composed of an inner ring body of the lower end bearing, balls and a ball support.
When the isolating switch bearing assembly tool is used for assembling an upper end bearing 2, a lower end bearing 3, a bearing seat 1 and a rotating shaft welding assembly 4, an outer ring 21 of the upper end bearing, an outer ring 31 of the lower end bearing and the bearing seat 1 are assembled respectively, an inner ring 22 of the upper end bearing and the rotating shaft welding assembly 4 are assembled, then a first assembly body consisting of 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 consisting of the inner ring 22 of the upper end bearing and the rotating shaft welding assembly 4 are assembled into a third assembly body, and finally the inner ring of the lower end bearing and the third assembly body are assembled.
Specifically, as shown in fig. 5, when the outer ring 21 of the upper end bearing, the outer ring 31 of the lower end bearing and the bearing seat 1 are assembled, under the pressure of a press, the first outer ring positioning member 5 pushes the outer ring 21 of the upper end bearing to move downward, 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 downward together, the bearing seat 1 is sleeved on the outer ring 31 of the lower end bearing, the outer ring 31 of the lower end bearing moves upward relative to the bearing seat 1, and the assembly of the outer ring 31 of the lower end bearing and the bearing seat 1 is completed. During assembly, because the first outer ring positioning 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 positioning piece 5 is abutted to the upper end face of the outer ring 21 of the upper end bearing, the coaxiality of the outer ring 21 of the upper end bearing and the bearing seat 1 can be ensured. The second outer ring positioning 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 positioning piece 6 is abutted to the lower end face of the outer ring 31 of the lower end bearing, so that the coaxiality of 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 element 13 is sleeved on the rotating shaft welding 4, and the first inner ring positioning element 13 abuts against the end surface 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, because the inner wall of the first inner ring positioning piece 13 is attached to the outer wall of the rotating shaft welding device 4, the rotating shaft welding device 4 guides the movement of the first inner ring positioning piece 13, the outer wall of the rotating shaft welding device 4 and the inner wall of the first inner ring positioning piece 13 can be positioned during assembly, the end surface of the inner ring 22 of the upper end bearing is in close contact with the end surface of the first inner ring positioning piece 13, the stress is uniform during pushing, and other component forces except the axial force are not generated during compression joint, so that the coaxiality of the inner ring 22 of the upper end bearing and the rotating shaft welding device 4 can be ensured.
When the inner ring of the lower end bearing is assembled with the third assembly body, the rotating shaft welding device 4 is sleeved with the inner ring of the lower end bearing, the rotating shaft welding device 4 can be sleeved with the second inner ring positioning piece 14, and the second inner ring positioning piece 14 can be abutted to the end face of the inner ring of the lower end bearing. And under the action of the press, pressing the second inner ring positioning piece 14 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 a rotating shaft of the third assembly body for welding. During assembly, because 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 in close contact with the end face of the second inner ring positioning piece 14, the stress is uniform in the pushing process, and other component forces except the axial force are not generated during compression joint, so that the coaxiality of the inner ring of the lower end bearing and the rotating shaft welding device 4 can be ensured.
Optionally, as shown in fig. 7, the first outer ring positioning element 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 the second positioning surface 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 also tapered. 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, and is guided by the conical surface in the pressing process, the first outer ring positioning piece 5 and the outer ring 21 of the upper end bearing are coaxial, and because the first outer ring positioning piece 5 is attached to the inner wall of the bearing seat 1, the first outer ring positioning piece 5 and the bearing seat 1 are coaxial, the outer ring 21 of the upper end bearing and the bearing seat 1 are coaxial and can be automatically aligned, the whole first positioning surface 51 is stressed, the force application point of the force can be effectively dispersed, the local pressure is reduced, and the force balance 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 the pressure distribution is ensured to be balanced.
Optionally, as shown in fig. 7, a plurality of first magnets 52 are embedded in the first outer ring positioning member 5 at intervals, and one surface of each first magnet 52 is flush with the first positioning surface 51; a plurality of second magnets are embedded in the second outer ring positioning piece 6 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 on 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 on the second outer ring positioning member 6.
Optionally, the isolating switch bearing assembling tool further comprises a first connecting piece 7 and a second connecting piece 8, 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 machine, 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 machine. The first outer ring positioning piece 5 is connected with a pressing plate 10 of the press machine through a first connecting piece 7, and the second outer ring positioning piece 6 is connected with a base 9 of the press machine through a second connecting piece 8. Optionally, a hydraulic cylinder 20 of the press is fixedly arranged on a fixed plate 19 of the press, an output end of the hydraulic cylinder 20 of the press is in transmission connection with a press plate 10 of the press, an upper end oil pipe 21 of the press and a lower end oil pipe 22 of the press are used for transmitting hydraulic oil, and the hydraulic cylinder 20 of the press can drive the press 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 isolating switch bearing assembling tool 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 simultaneously penetrates through the first connecting member 7 and the first plug pin; the second outer ring positioning piece 6 is provided with a second bolt, the second connecting piece 8 is provided with a second jack, the second bolt is inserted into the second jack, and the second locking pin 12 penetrates through the second connecting piece 8 and the second bolt. The first connecting member 7 and the first outer ring positioning member 5 are locked by a first locking pin 11, and the second connecting member 8 and the second outer ring positioning member 6 are locked by a second locking pin 12.
Optionally, the second connecting member 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 inserted through the guide hole. The guide posts 15 guide the movement of the bearing block 1. Optionally, the number of the guide posts 15 is two, and the two guide posts 15 are arranged at intervals.
Optionally, the isolating switch bearing assembling tool further comprises an elastic piece 16, the guide column 15 is sleeved with the elastic piece 16, 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. Optionally, the resilient member 16 is a spring. Optionally, 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, 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 element 13 is sleeved on the rotating shaft welding device 4 and pressed by the press machine, air between the first inner ring positioning element 13 and the rotating shaft welding device 4 can be discharged from the first through hole 131, so that the first inner ring positioning element 13 can smoothly push the inner ring 22 of the upper end bearing to move. Similarly, when the second inner ring positioning element 14 is sleeved on the rotating shaft welding device 4 and pressed by the press machine, air between the second inner ring positioning element 14 and the rotating shaft welding device 4 can be discharged from the second through hole 141, so that the second inner ring positioning element 14 can smoothly push the inner ring of the lower end bearing to move.
Optionally, the first inner ring positioning element 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 an integrally formed structure, and the inner wall of the first inner ring positioning piece 13 can be ensured to be perpendicular to the end surface of the first inner ring positioning piece 13. Because the inner wall of first inner circle setting element 13 and the outer wall laminating of pivot weld dress 4 make first inner circle setting element 13 and pivot weld dress 4 coaxial setting, because the terminal surface butt of the inner circle 22 of first inner circle setting element 13 and upper end bearing, the inner wall of first inner circle setting element 13 is perpendicular with the terminal surface of first inner circle setting element 13, then enables the inner circle 22 of upper end bearing and the coaxial setting of pivot weld dress 4, and the axiality is high. Similarly, the second inner ring positioning element 14 is an integrally formed structure, and the inner wall of the second inner ring positioning element 14 can be ensured to be perpendicular to the end surface of the second inner ring positioning element 14, so that the inner ring of the lower end bearing is ensured to be coaxially arranged with the rotating shaft welding device 4 by one stroke.
The invention also provides an assembly method, which applies the isolating switch bearing assembly tool, 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 isolating switch bearing assembly tool further comprises a first connecting piece 7 and a second connecting piece 8, and the assembly method comprises the following steps:
connecting a first connecting piece 7 with a base 9 of the press machine and a first outer ring positioning piece 5 respectively, wherein the first outer ring positioning piece 5 penetrates through an outer ring 21 of the upper end bearing, and a 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 a second outer ring positioning piece 6, the second outer ring positioning piece 6 penetrates through an outer ring 31 of the lower end bearing, and a second positioning surface is attached to the inner wall of the outer ring 31 of the lower end bearing; a guide post on the second connecting piece 8 is arranged in a guide hole of the bearing seat 1 in a penetrating way, and the elastic piece 16 sleeved on the guide post supports the bearing seat 1; a press plate 10 of the press machine moves downwards, an outer ring 21 of an upper end bearing and an outer ring 31 of a lower end bearing are pressed into a bearing seat 1 in a pressure equalizing 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 body;
sleeving an inner ring 22 of an upper end bearing on the rotating shaft welding device 4, sleeving a first inner ring positioning piece 13 on the rotating shaft welding device 4 and abutting against the inner ring 22 of the upper end bearing, knocking the first inner ring positioning piece 13 by using a hammer or pressing the first inner ring positioning piece 13 by using 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 device 4 and the inner ring 22 of the upper end bearing;
a rotating shaft welding assembly 4 of a second assembly body is arranged on a bearing seat 1 of the first assembly body in a penetrating mode, an outer ring 21 of an upper end bearing is sleeved on an inner ring 22 of the upper end bearing under the action of a press machine, 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 element 14 is sleeved on the rotating shaft welding device 4 and is abutted against the inner ring of the lower end bearing, and under the action of the press machine, the second inner ring positioning element 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 should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a isolator bearing assembly fixture for assemble upper end bearing (2) and lower extreme bearing (3) between bearing frame (1) and pivot welding dress (4), its characterized in that includes:
the first outer ring positioning piece (5), one part of the first outer ring positioning piece (5) can penetrate through the bearing seat (1), the other part of the first outer ring positioning piece can penetrate through 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 to the upper end face of the outer ring (21) of the upper end bearing;
the bearing seat comprises a bearing seat (1), a second outer ring positioning piece (6), wherein one part of the second outer ring positioning piece (6) penetrates through the bearing seat (1), the other part of the second outer ring positioning piece (6) penetrates through an 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 to 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 abut against the end face of the inner ring (22) of the upper end bearing;
second inner circle setting element (14), the inner circle cover of lower extreme bearing is located pivot welding dress (4), second inner circle setting element (14) can be overlapped and is located pivot welding dress (4), just the inner wall of second inner circle setting element (14) with the outer wall laminating of pivot welding dress (4), second inner circle setting element (14) can with the terminal surface butt of the inner circle of lower extreme bearing.
2. The isolating switch bearing assembling 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 machine, 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 machine.
3. The isolating switch bearing assembling 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) penetrates through the first connecting piece (7) and the first plug pin; the second outer ring positioning piece (6) is provided with a second bolt, the second connecting piece (8) is provided with a second jack, the second bolt is inserted into the second jack, and the second locking pin (12) penetrates through the second connecting piece (8) and the second bolt simultaneously.
4. The isolating switch bearing assembling tool according to claim 2, wherein a guide post (15) is fixedly arranged on the second connecting piece (8), a guide hole is formed in the bearing seat (1), and the guide post (15) is slidably arranged in the guide hole in a penetrating manner.
5. The isolating switch bearing assembling tool according to claim 4, further comprising an elastic piece (16), wherein the guide column (15) is sleeved with the elastic piece (16), and two ends of the elastic piece (16) are respectively abutted to the second connecting piece (8) and the bearing seat (1).
6. The isolating switch bearing assembling tool according to claim 1, wherein the first inner ring positioning piece (13) is provided with a plurality of first through holes (131), the plurality of first through holes (131) are arranged at intervals, the second inner ring positioning piece (14) is provided with a plurality of second through holes (141), and the plurality of second through holes (141) are arranged at intervals.
7. The isolating switch bearing assembling 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 positioning piece (6) is provided with a second positioning surface, the second positioning surface is attached to the inner wall of the outer ring (31) of the lower end bearing, and the second positioning surface is a conical surface.
8. The isolating switch bearing assembling tool 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); and a plurality of second magnets are embedded in the second outer ring positioning piece (6) at intervals, and one surface of each second magnet is flush with the corresponding second positioning surface.
9. The isolating switch bearing assembling tool according to claim 1, wherein the first inner ring positioning piece (13) is of an integrally formed structure; the second inner ring positioning piece (14) is of an integrally formed structure.
10. An assembling method, characterized in that the isolating switch bearing assembling tool of any one of claims 1 to 9 is applied, 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 isolating switch bearing assembling tool further comprises a first connecting piece (7) and a second connecting piece (8), and the assembling method comprises the following steps:
the first connecting piece (7) is respectively connected with a base (9) of a press machine and the first outer ring positioning piece (5), the first outer ring positioning piece (5) penetrates through an 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 press plate (10) of a press machine and the second outer ring positioning piece (6), the second outer ring positioning piece (6) penetrates through an 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 on the second connecting piece (8) penetrates through a guide hole of the bearing seat (1), and an elastic piece (16) sleeved on the guide post supports the bearing seat (1); a press plate (10) of the press machine moves downwards, an outer ring (21) of the upper end bearing and an outer ring (31) of the lower end bearing are pressed into the bearing seat (1) in a pressure sharing 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 body;
sleeving an inner ring (22) of the upper end bearing on the rotating shaft welding device (4), sleeving a first inner ring positioning piece (13) on the rotating shaft welding device (4) and abutting against the inner ring (22) of the upper end bearing, knocking the first inner ring positioning piece (13) by using a hammer or pressing the first inner ring positioning piece (13) by using 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 device (4) and the inner ring (22) of the upper end bearing;
the rotating shaft welding device (4) of the second assembly body is arranged on the bearing seat (1) of the first assembly body in a penetrating mode, an outer ring (21) of the upper end bearing is sleeved on an inner ring (22) of the upper end bearing under the action of a press machine, and the first assembly body and the second assembly body form a third assembly body;
will the inner circle cover of lower extreme bearing is located the third assembly body the pivot is welded dress (4), second inner circle setting element (14) cover is located the pivot is welded dress (4) and with the inner circle butt of lower extreme bearing, under the effect of press, second inner circle setting element (14) promote the inner circle motion of lower extreme bearing makes outer lane (31) cover of lower extreme bearing is located the inner circle of lower extreme 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 true CN114871990A (en) | 2022-08-09 |
| CN114871990B 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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| CN114871990B (en) | 2023-05-23 |
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