CN215452727U - Elevator disc type traction machine rotor dismounting jig - Google Patents
Elevator disc type traction machine rotor dismounting jig Download PDFInfo
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- CN215452727U CN215452727U CN202121897696.4U CN202121897696U CN215452727U CN 215452727 U CN215452727 U CN 215452727U CN 202121897696 U CN202121897696 U CN 202121897696U CN 215452727 U CN215452727 U CN 215452727U
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- type traction
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Abstract
The utility model discloses a jig for disassembling and assembling a rotor of an elevator disc type traction machine, which comprises: a dummy shaft, which is assembled in the inner hole of the shaft part on the shell of the elevator disc type traction machine and locked on the shaft part of the shell of the elevator disc type traction machine when being assembled and disassembled, and an inner screw hole is arranged in the dummy shaft; a cylinder locked on the rotor component of the elevator disc type traction machine when in installation; a support bolt axially arranged on the cylinder body, wherein the support bolt is screwed into the inner threaded hole of the dummy shaft during mounting and dismounting so as to mount the rotor assembly of the elevator disc type traction machine on the shell; and when the elevator disc type traction machine is disassembled, the rotor assembly of the elevator disc type traction machine is disassembled from the shell. The utility model is characterized in that: the suction force between the stator and the rotor is supported by the thread pair between the supporting bolt and the inner screw hole in the dummy shaft, so that stable installation and disassembly are realized.
Description
Technical Field
The utility model relates to the technical field of assembly of a disc type traction motor, in particular to a jig for disassembling and assembling a rotor of an elevator disc type traction motor.
Background
At present, when a rotor assembly of a magnetic flux axial direction of a known elevator disc type traction machine is assembled, strong axial electromagnetic force must be overcome so as to prevent a bearing from being damaged by impact force formed by rapid attraction of a stator and the rotor assembly. The current solution is to control the axial attraction force by the supporting force formed by the specially designed hydraulic jig, so as to achieve the purpose of stable installation.
However, the hydraulic method has the following problems: 1) the pollution problem caused by liquid leakage is that the hydraulic cylinder is easy to damage and generate liquid leakage after being repeatedly used, so that the pollution is caused; 2) the hydraulic cylinder jig is large in size and needs to be lifted to assist, so that the installation site is often fixed; 3) the operation is inconvenient, and several people are needed for matching installation;
4) most of the hydraulic cylinders need to be driven by electricity, and the rotor is difficult to assemble and disassemble on the elevator site in places with difficult site electricity connection.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a jig which can be used for quickly assembling and disassembling a disc type traction machine rotor assembly aiming at the defects of the existing hydraulic jig, and has the characteristics of small volume, convenience in carrying, no pollution risk and accurate positioning, labor is saved by adopting a compressed air wrench in the factory assembly application, and the jig can be disassembled by adopting a common wrench in the elevator installation field.
In order to achieve the above object, the present invention provides an elevator disc type traction machine rotor dismounting jig, comprising:
a dummy shaft, which is assembled in the inner hole of the shaft part on the shell of the elevator disc type traction machine and locked on the shaft part of the shell of the elevator disc type traction machine when being assembled and disassembled, and an inner screw hole is arranged in the dummy shaft;
a cylinder locked on the rotor component of the elevator disc type traction machine when in installation;
and a support bolt axially arranged on the cylinder body, wherein the support bolt is screwed into the inner threaded hole of the dummy shaft during installation and disassembly, and the first bearing inner diameter and the second bearing inner diameter in the rotor assembly of the elevator disc type traction machine are respectively pressed onto the first shaft section and the second shaft section of the shaft part on the shell of the elevator disc type traction machine or taken out from the first shaft section and the second shaft section of the shaft part on the shell of the elevator disc type traction machine through the cylinder body.
In a preferred embodiment of the utility model, the outer diameter of the dummy shaft has a first outer diameter part and a second outer diameter part which are coaxial, the outer diameter of the first outer diameter part is larger than the outer diameter of the second outer diameter part and is matched with the inner diameter of the inner cavity of the cylinder body; the inner hole of the shaft part on the shell of the elevator disc type traction machine is provided with a first inner hole and a second inner hole which are coaxial, and the inner diameter of the first inner hole is smaller than that of the second inner hole; the outer diameter of the first outer diameter part is the same as that of the first shaft section, and the outer diameter of the second outer diameter part is matched with that of the first inner hole; when the elevator disc type traction machine is installed, the second outer diameter part on the dummy shaft is inserted into the first inner hole, and the step between the first outer diameter part and the second outer diameter part is pressed on the end part of the shaft part on the shell of the elevator disc type traction machine.
In a preferred embodiment of the utility model, a threaded hole is arranged on the shell of the elevator disc type traction machine, and the threaded hole is coaxial with an inner hole of the shaft part on the shell of the elevator disc type traction machine; a dummy shaft locking bolt through hole is further formed in the dummy shaft, the dummy shaft locking bolt through hole is communicated with and coaxial with the inner screw hole, and the inner diameter of the dummy shaft locking bolt through hole is smaller than that of the inner screw hole; when the elevator disc type traction machine is installed, a dummy shaft locking bolt penetrates through the inner threaded hole and the bolt through hole in the dummy shaft and then is screwed into the threaded hole in the shell of the elevator disc type traction machine, so that the dummy shaft can be locked on the shaft part of the shell of the elevator disc type traction machine.
In a preferred embodiment of the present invention, an outer cone section is provided at an end of the first outer diameter portion of the dummy shaft remote from the second outer diameter portion, and a maximum outer diameter of the outer cone section is equal to an outer diameter of the first outer diameter portion, and the outer cone section is introduced into an inner diameter of the first bearing when the rotor assembly of the elevator disc type traction machine is assembled to a housing of the elevator disc type traction machine.
In a preferred embodiment of the present invention, an inner cone guide hole is provided in the dummy shaft, and a minimum inner diameter of the inner cone guide hole is equal to and communicates with an inner diameter of the inner screw hole; when the supporting bolt is installed, the supporting bolt is guided into the inner screw hole through the inner cone guide hole.
In a preferred embodiment of the utility model, a rotor assembly mounting flange part is arranged at one end of the cylinder body, a plurality of connecting bolt through holes are circumferentially arranged on the rotor assembly mounting flange part at intervals, and when the cylinder body is mounted, the cylinder body can be connected with the rotor assembly of the elevator disc type traction machine after connecting bolts penetrate through the connecting bolt through holes and are screwed into bolt holes in the rotor assembly of the elevator disc type traction machine.
In a preferred embodiment of the utility model, the rotor assembly mounting flange part of the cylinder and the rotor assembly of the elevator disc type traction machine are circumferentially positioned through a matched positioning structure of a spigot and a spigot groove.
In a preferred embodiment of the utility model, the supporting bolt is arranged in the inner cavity of the cylinder body through a bearing shaft; the outer diameter of the supporting bolt is in interference fit with the inner diameter of the bearing.
In a preferred embodiment of the utility model, the bearing is a four-point contact ball bearing.
In a preferred embodiment of the present invention, the bearing further comprises a cushion block, wherein the cushion block is sleeved on the supporting screw and is located between the screw head of the supporting screw and the inner ring of the bearing.
In a preferred embodiment of the present invention, the bearing further comprises a nut screwed on the support screw, the nut is located below the bearing, and an elastic gasket is arranged between the nut and the inner ring of the bearing.
In a preferred embodiment of the present invention, the rotor assembly further comprises an end cap locked to an end of the cylinder remote from the mounting flange portion of the rotor assembly by end cap locking bolts.
In a preferred embodiment of the utility model, a lifting ring is locked to the end cap.
Due to the adoption of the technical scheme, compared with the prior art, the utility model is suitable for quickly assembling and disassembling the rotor assembly of the disc type traction machine, supports the suction force between the stator and the rotor through the thread pair between the supporting bolt and the inner screw hole in the dummy shaft, and realizes stable assembly and disassembly. Meanwhile, the dummy shaft and the cylinder are guided to play a role that the rotor is concentrically arranged on the stator.
The utility model has the following effects:
1) the utility model has the characteristics of small volume and light weight, and can be easily and manually taken up and installed on the rotor assembly;
2) the utility model has a pure mechanical structure design and does not have the pollution risk caused by oil pollution.
3) The operation is simple, and the operation can be finished by one person.
4) Can be conveniently carried on site for disassembly and assembly operation.
5) For sites with limited conditions (e.g., no power supply), safety and disassembly may be accomplished by manually twisting the support bolts with a conventional wrench.
Drawings
Fig. 1 is an appearance schematic diagram of an elevator disc type traction machine rotor dismounting jig (except a dummy shaft and a dummy shaft locking bolt) of the utility model.
Fig. 2 is a schematic structural diagram of an elevator disc type traction machine rotor dismounting jig (except for a dummy shaft and a dummy shaft locking bolt) of the utility model.
Fig. 3 is a schematic structural diagram of an elevator disc type traction machine rotor assembling and disassembling jig according to the present invention.
Detailed Description
The utility model is further described below in conjunction with the appended drawings and detailed description.
Referring to fig. 1 to 3, the jig for disassembling and assembling the elevator disc type traction machine rotor comprises a dummy shaft 10, a cylinder 20, a support bolt 30, a bearing 40, a cushion block 50, a nut 60, an elastic gasket 70, an end cover 80 and a hanging ring 90.
The outer diameter of the dummy shaft 10 is provided with a first outer diameter part 11 and a second outer diameter part 12 which are coaxial, the outer diameter of the first outer diameter part 11 is larger than that of the second outer diameter part 12, an outer taper section 13 is arranged at one end of the first outer diameter part 11 of the dummy shaft 10 far away from the second outer diameter part 12, and the maximum outer diameter of the outer taper section 13 is equal to that of the first outer diameter part 11.
An inner cone guide hole 13, an inner screw hole 14 and a dummy shaft locking bolt through hole 15 which are coaxial are sequentially arranged in the dummy shaft 10 from the first outer diameter part 11 to the second outer diameter part 12 along the axial direction of the dummy shaft 10, the minimum inner diameter of the inner cone guide hole 13 is equal to the inner diameter of the inner screw hole 14, the dummy shaft locking bolt through hole 15 is communicated with the inner screw hole 14, and the inner diameter of the dummy shaft locking bolt through hole 15 is smaller than the inner diameter of the inner screw hole 14.
A rotor assembly mounting flange part 21 is arranged at one end of the cylinder body 20, a plurality of rotor assembly connecting bolt through holes 21a are circumferentially arranged on the rotor assembly mounting flange part 21 at intervals, and a stopping groove 21b is arranged on the bottom surface of the rotor assembly mounting flange part 21.
The bearing 40 is a four-point contact ball bearing, which is installed in the inner cavity 22 at one end of the cylinder body 20 far away from the mounting flange part 21 of the rotor assembly, and an annular boss 23 is arranged on the cavity wall of the inner cavity 22 of the cylinder body 20 at one side of the bearing 40 facing the mounting flange part 21 of the rotor assembly, and the annular boss 23 supports the outer ring of the bearing 40. In addition, the outer diameter of the outer ring of the bearing 40 is in interference fit with the inner cavity 22 of the barrel 20.
The supporting bolt 30 is composed of a bolt head 31, a polished rod segment 32 and a threaded section 33, the polished rod segment 32 being located between the bolt head 31 and the threaded section 33. The support bolt 30 passes through the bearing 40 and the outer diameter of the polished rod segment 32 on the support bolt 30 is in interference fit with the inner diameter of the inner race of the bearing 40.
The spacer 50 is fitted over the polished rod segment 32 of the supporting bolt 30 and is located between the bolt head 31 and the inner race of the bearing 40.
The nut 60 is screwed on the threaded section 33 of the support bolt 30, and the elastic washer 70 is fitted over the threaded section 33 of the support bolt 30 and between the nut 60 and the inner race of the bearing 40.
An end cover mounting flange portion 24 is arranged on the outer wall of the cylinder body on one side, away from the rotor assembly mounting flange portion 21, of the cylinder body 20, and a plurality of end cover mounting inner screw holes 24a are circumferentially arranged on the end cover mounting flange portion 24 at intervals.
An inner hole 81 is formed in the end cover 80, a plurality of end cover locking bolt through holes 82 are formed in the periphery of the inner hole 81 at intervals, and the number and the positions of the end cover locking bolt through holes 82 are in one-to-one correspondence with the number and the positions of the end cover installation inner screw holes 24 a. During installation, the end cover 80 is buckled on the end cover installation flange part 24, the end cover locking bolt through holes 82 are aligned with the end cover installation inner screw holes 24a one by one, the end cover locking bolts 83 penetrate through the end cover locking bolt through holes 82, the end cover locking bolts are screwed into the end cover installation inner screw holes 24a, the end cover 80 can be fixed on the end cover installation flange part 24, at the moment, the bolt heads 31 of the supporting bolts 30 penetrate out of the inner holes 81 of the end cover 80, and the cushion blocks 50 are located in the inner holes 81 of the end cover 80.
A lifting ring 90 is locked to the end cap 80 to lift the rotor assembly.
An inner hole 111 of a shaft portion 110 on a housing 100 of an elevator disc type traction machine has a first inner hole 111a and a second inner hole 111b which are coaxial and the inner diameter of the first inner hole 111a is smaller than that of the second inner hole 111 b; the outer diameter 112 of the shaft portion 110 has a first shaft section 112a and a second shaft section 112b, the outer diameter of the first shaft section 112a is the same as the outer diameter of the first outer diameter portion 11, and the outer diameter of the second outer diameter portion 12 matches the inner diameter of the first inner bore 111 a. A screw hole 120 is provided in the housing 100 of the elevator disc type hoisting machine, and the screw hole 120 is coaxial with the inner hole 111 of the shaft portion 110 in the housing 100 of the elevator disc type hoisting machine and communicates with the second inner hole 111 b.
When the rotor assembly 200 of the elevator disc type traction machine needs to be installed, the second outer diameter part 12 on the dummy shaft 10 is firstly inserted into the first inner hole 111a and the step 17 between the first outer diameter part 11 and the second outer diameter part 12 is pressed on the end of the shaft part 110d on the housing 100 of the elevator disc type traction machine. Then a dummy shaft locking bolt 18 is threaded into the threaded hole 120 on the elevator disc type traction machine housing 100 after passing through the inner cone guide hole 13, the inner threaded hole 14 and the dummy shaft locking bolt through hole 15 in the dummy shaft 10, so that the dummy shaft 10 can be locked on the shaft part 110 of the elevator disc type traction machine housing 100, and the dummy shaft 10 is concentric with the shaft part 110d on the elevator disc type traction machine housing 100.
The spigot groove 21b on the bottom surface of the rotor assembly mounting flange portion 21 of the cylinder body 20 is sleeved on the spigot step 210 of the rotor assembly 200, the rotor assembly connecting bolt through holes 21a on the rotor assembly mounting flange portion 21 are aligned with the bolt holes 211 on the spigot step 210 of the rotor assembly 200 one by one, and the cylinder body 200 and the rotor assembly 200 can be connected after the connecting bolts 300 are screwed into the bolt holes 211 on the spigot step 210 of the rotor assembly 200 after penetrating through the connecting bolt through holes 21 a.
The elevator disc type traction machine rotor dismounting jig of the utility model except the dummy shaft 10 and the dummy shaft locking bolt 18 and the rotor assembly 200 are integrally hoisted to the upper side of the shell 100 through the hoisting ring 90 on the end cover 80.
Gradually lowering the rotor assembly 200 such that the outer cone 13 of the dummy shaft 10 is gradually introduced into the inner diameter of the first bearing 230 of the rotor assembly 200 through the inner diameter of the second bearing 220 of the rotor assembly 200 and into the inner cavity 22 of the barrel 20 through the inner diameter of the first bearing 230 to position the rotor assembly 200; at this time, the threaded section 33 of the supporting bolt 30 is gradually guided to the inner threaded hole 14 through the inner tapered guide hole 13 in the dummy shaft 10.
The bolt head 31 of the supporting bolt 30 is twisted using a compressed air wrench or a general wrench so that the threaded section 33 of the supporting bolt 30 is screwed into the inner screw hole 14. During the screwing of the threaded section 33 of the stay bolt 30 into the inner threaded hole 14, the bolt head 31 of the stay bolt 30 drives the rotor assembly 200 to move towards the casing 100 through the spacer 50, the bearing 40, the annular boss 23 on the cylinder 20, the cylinder 20 and the rotor assembly mounting flange portion 21 until the second bearing 220 in the rotor assembly 200 is radially press-fitted on the second section 112b of the shaft portion 110 of the casing 100, and the first bearing 230 in the rotor assembly 200 is radially press-fitted on the first section 112a of the shaft portion 110 of the casing 100.
After the rotor assembly 200 is assembled in place, the connecting bolts 300 are disassembled, that is, the parts of the elevator disc type traction machine rotor disassembly and assembly jig of the utility model except the dummy shaft 10 and the dummy shaft locking bolts 18 are disassembled from the rotor assembly 200, then the dummy shaft locking bolts 18 are disassembled, and the dummy shaft 10 is disassembled from the shaft part 110 of the shell 100.
The step of detaching the rotor assembly 200 from the housing 100 is the reverse of the step of mounting the rotor assembly 200 to the housing 100.
Claims (14)
1. The utility model provides an elevator disk hauler rotor dismouting tool which characterized in that includes:
a dummy shaft, which is assembled in the inner hole of the shaft part on the shell of the elevator disc type traction machine and locked on the shaft part of the shell of the elevator disc type traction machine when being assembled and disassembled, and an inner screw hole is arranged in the dummy shaft;
a cylinder locked on the rotor component of the elevator disc type traction machine when in installation;
a supporting bolt axially arranged on the cylinder body, wherein when the supporting bolt is installed, the supporting bolt is screwed into the inner threaded hole of the dummy shaft, and the rotor assembly of the elevator disc type traction machine is installed on the shell through the cylinder body; and when the elevator disc type traction machine is disassembled, the rotor assembly of the elevator disc type traction machine is disassembled from the shell.
2. The jig for disassembling and assembling the rotor of the elevator disc type traction machine according to claim 1, wherein when the jig is assembled, the cylinder body presses a first bearing inner diameter and a second bearing inner diameter in the rotor assembly of the elevator disc type traction machine onto a first shaft section and a second shaft section of a shaft part on a shell of the elevator disc type traction machine respectively; when the elevator disc type traction machine is disassembled, the first bearing inner diameter and the second bearing inner diameter in the rotor assembly of the elevator disc type traction machine are taken out from the first shaft section and the second shaft section of the shaft part on the shell of the elevator disc type traction machine through the cylinder.
3. The jig for disassembling and assembling the elevator disc type traction machine rotor as claimed in claim 2, wherein the outer diameter of the dummy shaft has a first outer diameter part and a second outer diameter part which are coaxial, and the outer diameter of the first outer diameter part is larger than the outer diameter of the second outer diameter part and is matched with the inner diameter of the inner cavity of the cylinder; the inner hole of the shaft part on the shell of the elevator disc type traction machine is provided with a first inner hole and a second inner hole which are coaxial, and the inner diameter of the first inner hole is smaller than that of the second inner hole; the outer diameter of the first outer diameter part is the same as that of the first shaft section, and the outer diameter of the second outer diameter part is matched with that of the first inner hole; when the elevator disc type traction machine is installed, the second outer diameter part on the dummy shaft is inserted into the first inner hole, and the step between the first outer diameter part and the second outer diameter part is pressed on the end part of the shaft part on the shell of the elevator disc type traction machine.
4. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 3, characterized in that a threaded hole is provided on the housing of the elevator disc type traction machine, and the threaded hole is coaxial with the inner hole of the shaft part on the housing of the elevator disc type traction machine; a dummy shaft locking bolt through hole is further formed in the dummy shaft, the dummy shaft locking bolt through hole is communicated with and coaxial with the inner screw hole, and the inner diameter of the dummy shaft locking bolt through hole is smaller than that of the inner screw hole; when the elevator disc type traction machine is installed, a dummy shaft locking bolt penetrates through the inner threaded hole and the bolt through hole in the dummy shaft and then is screwed into the threaded hole in the shell of the elevator disc type traction machine, so that the dummy shaft can be locked on the shaft part of the shell of the elevator disc type traction machine.
5. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 4, wherein an outer taper section is provided at an end of the first outer diameter part of the dummy shaft away from the second outer diameter part, a maximum outer diameter of the outer taper section is equal to an outer diameter of the first outer diameter part, and the outer taper section is guided into an inner diameter of the first bearing when the rotor assembly of the elevator disc type traction machine is assembled to the housing of the elevator disc type traction machine.
6. The jig for disassembling and assembling an elevator disc type traction machine rotor as claimed in claim 5, wherein an inner cone guide hole is provided in the dummy shaft, and a minimum inner diameter of the inner cone guide hole is equal to and communicates with an inner diameter of the inner screw hole; when the supporting bolt is installed, the supporting bolt is guided into the inner screw hole through the inner cone guide hole.
7. The jig for disassembling and assembling the rotor of the elevator disc type traction machine according to claim 6, wherein a rotor assembly mounting flange part is arranged at one end of the cylinder, a plurality of connecting bolt through holes are circumferentially arranged on the rotor assembly mounting flange part at intervals, and when the jig is installed, the cylinder can be connected with the rotor assembly of the elevator disc type traction machine by screwing the connecting bolts into the bolt holes on the rotor assembly of the elevator disc type traction machine after penetrating the connecting bolt through holes.
8. The jig for disassembling and assembling the rotor of the elevator disc type traction machine according to claim 7, wherein a circumferential positioning is performed between the rotor assembly mounting flange part of the cylinder and the rotor assembly of the elevator disc type traction machine through a positioning structure in which a spigot and a spigot groove are matched with each other.
9. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 8, wherein the supporting bolt is axially disposed in the inner cavity of the cylinder through a bearing; the outer diameter of the supporting bolt is in interference fit with the inner diameter of the bearing.
10. The elevator disc type traction machine rotor dismounting jig is characterized in that the bearing is a four-point contact ball bearing.
11. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 10, further comprising a cushion block, wherein the cushion block is sleeved on the supporting bolt and is located between the screw head of the supporting bolt and the inner ring of the bearing.
12. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 11, further comprising a nut screwed on the support bolt, wherein the nut is located below the bearing and an elastic gasket is disposed between the nut and the inner ring of the bearing.
13. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 12, further comprising an end cover locked to an end of the cylinder away from the mounting flange portion of the rotor assembly by an end cover locking bolt.
14. The jig for disassembling and assembling an elevator disc type traction machine rotor according to claim 13, wherein a hanging ring is locked on the end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121897696.4U CN215452727U (en) | 2021-08-13 | 2021-08-13 | Elevator disc type traction machine rotor dismounting jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121897696.4U CN215452727U (en) | 2021-08-13 | 2021-08-13 | Elevator disc type traction machine rotor dismounting jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215452727U true CN215452727U (en) | 2022-01-07 |
Family
ID=79694024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121897696.4U Active CN215452727U (en) | 2021-08-13 | 2021-08-13 | Elevator disc type traction machine rotor dismounting jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215452727U (en) |
-
2021
- 2021-08-13 CN CN202121897696.4U patent/CN215452727U/en active Active
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