JPH10178765A - Disassembly and assembly support equipment for rotating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct, disassembling and assembling of the rotating machine without lifting the rotating machine with a hoist or erecting the rotating machine when a rotating machine such as motor is broken up into a rotor section and a stator section or the rotor section and the stator section are assembled together. SOLUTION: A device is used for the operation of breaking up a rotating machine 11, such as motor into a rotor section and a stator or operation of assembling the rotor section and the stator section together. The device is provided with an upright column 1, a coupling member 10 to be coupled with an end of the horizontal spindle 12 of the rotating machine 11, and a retaining device 3 that is supported on the column 1 and retains the coupling member 10. The rotating machine 11 is placed on a pallet 36 on a linear track 30 and carried in, and the coupling member 10 is coupled with the spindle 12. Then the spindle 12 is held in a horizontal and cantilevered position, so as to aid disassembly or assembly of the rotating machine 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disassembly / assembly support device for assisting in disassembling or assembling a rotating device such as an electric motor into a rotor portion and a stator portion.

[0002]

2. Description of the Related Art Rotary equipment such as an electric motor requires regular maintenance. At this time, a rotor and a stator are individually maintained and inspected.

For this reason, before maintenance, the rotating device is disassembled into a rotor section such as a main shaft and a rotor, and a stator section such as a yoke and a stator, and after the maintenance, the rotating apparatus is fixed to the rotor section. The work of assembling the child part is performed.

[0004] The disassembly or assembly work of the rotating equipment is generally performed in the following steps.

(During disassembly) Loading of rotating equipment → Removing bolts from rotating equipment end plate → Separately holding rotor and stator parts → Disassembling (pulling out) stator and rotor parts → Stator part and rotating Unloading of the stator part (at the time of assembly) Loading of the stator part and the rotor part → Holding the rotor part and the stator part separately → Assembling (inserting) the stator part and the rotor part → Tightening the end plate of the rotating equipment with bolts → Unloading of rotating equipment Conventionally, in these operations, the rotating equipment was pulled out or inserted horizontally or vertically while supporting the rotor part with a crane or the like while the rotating equipment was installed on the floor.

[0006]

In a rotating device such as an electric motor, the clearance gap between the rotor and the stator is very narrow, and is about 7 to 8 mm for a DC machine and 1 to 2 mm for an AC machine.
Great care must be taken to avoid contact during disassembly, disassembly or assembly.

[0007] In particular, the work is suspended by a crane or the like, and the movement is performed very slowly and little by little.

Therefore, it has been difficult to automate the disassembling or assembling work of the rotating equipment, and it has been manually performed, and has the following problems.

(1) Since a plurality of workers perform slowly,
It took time and effort.

(2) Handling heavy objects (several hundreds of kg) and requiring long-term mental concentration for detailed work, resulting in extremely heavy labor.

(3) A large space in consideration of safety is required for the hanging operation using a crane or the like.

(4) The presence or absence of contact between the rotor and the stator at the time of disassembly and assembly depends on the feel of the operator, so it is difficult to judge, and as a result, the two often bite.

(5) In particular, in the vertical disassembly and assembling method, it is necessary to set up a rotating device, a special employment is required, and the mechanism is complicated and large.

The present invention has been made to solve the above-mentioned problem, and it is possible to reduce the number of human operations, and at the same time, to save space, reduce time,
It is an object of the present invention to provide a disassembly and assembly support device for rotating equipment such as an electric motor, which can perform a smooth operation with simple equipment.

[0015]

In order to achieve the above object, a disassembly / assembly support apparatus for a rotating device according to a first invention of the present application includes a rotating device such as an electric motor in a rotor portion and a stator portion. In a disassembly / assembly support device for disassembling or assembling a rotor portion and a stator portion, an upright column, a connecting member for connecting to a horizontal main shaft end of a rotating device, and a supporter for the column And a holding device for holding the connecting member, holding the main shaft in a horizontal and cantilevered state, and assisting disassembly or assembly of the rotating device.

According to a second aspect of the present invention, in the first aspect, the holding device includes a carriage movable up and down along a column, a holding member movably provided on the carriage and holding a connecting member, And a fixing member for fixing the member to the carriage to enable centering and attitude control during disassembly or assembly of the rotating device.

According to a third invention of the present application, a linear track is attached to the disassembling and assembling apparatus for rotating equipment according to the first or second invention, and a pallet is mounted on the linear track. And a roller that is rotatable with respect to each other and supports the rotating device, so that the rotating device can be aligned.

The rotating device is disassembled in a horizontal state while being placed on a pallet or the like, and is carried into the assembly support device, and one end of the rotor main shaft is held in a cantilever state. The horizontal position is corrected, the rotor unit and the stator are aligned, the bolts of the end plate are removed, and then the rotor unit or the stator unit is moved horizontally to perform disassembly and pull-out or assembly and insertion.

According to the above-mentioned means, it is possible to disassemble and assemble the rotating device safely and efficiently without setting up the rotating device by the horizontal pull-out and insertion method and eliminating the need to lift the rotating device.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. 1, 2 and 3 show one embodiment of the present invention.

Referring to FIG. 1, the disassembly / assembly assisting apparatus according to the present invention has a column 1 provided with a base portion 2 and a main shaft 12 of a rotating device 11 such as an electric motor is cantilevered. The holding device 3 for supporting is provided so as to be vertically movable, and the disassembly and assembly support device is installed in the inspection and repair line of the rotating device 11.

The holding device 3 has a carriage 4, which is guided by a guide rail 7 of the column 1 via a slider 6.
Along a guide rail by an up-down actuator 8 such as a hydraulic cylinder disposed on the arm 4 above the column 1. The carriage 4 is provided with a holding member 9, and a connecting member 10 is provided inside the holding member 9. The connecting member 10 is a simple fastening member that is turned by an operation shaft 16 operated by a handle 17 and screwed into a screw portion 18 of the electric motor main shaft 12, as shown in the illustrated example. A chuck may be used.

A first fixing mechanism for fixing the rear part (the left side in FIG. 2 is referred to as a rear part) of the holding member 9 is provided, and the first fixing mechanism is preferably a frusto-conical shape of the holding member 9. , A fixing member 21 such as a cotter having a complementary shape, and an actuator 22 such as a hydraulic cylinder that operates the fixing member 21. A bracket 24 is fixed to the upper portion of the body 9B having a square cross section or the like of the holding member 9, and a second engagement is provided by a locking head 19 that engages with the bracket and an actuator 25 such as a hydraulic cylinder that operates the locking head. A fixing mechanism is configured, and the holding member 9 is attracted and fixed to the frame of the carriage 5 by the second fixing mechanism as illustrated. A tapered hole 9C is formed in a front portion of the holding member 9.

The carriage has first and second posture confirmation sensors 26 and 2 for confirming the posture of the holding member 9.
7 are provided. For each of these sensors, for example, a conversion element having a spring-biased projection and generating an electric potential according to the deviation of the projection is used, and the element may be a resistance strain member, a transducer, or another known element. it can. The first posture confirmation sensor 26 detects a front and rear abutment (not shown) attached to the holding member 9 to detect a deviation of the posture of the holding member 9 in the left and right directions (perpendicular to the plane of FIG. 2). Can be detected. The second posture confirmation sensor 27 is
It is located below the holding member 9 and can detect a vertical shift of the posture of the holding member.

Next, the details of the linear track section will be described with reference to FIG. The linear track 30 has a base 32 guided on a rail 31 of the column 1.
Is moved on the rail 31 by the moving device 33.
In the present embodiment, the moving device includes a plurality of sprockets 34 rotated by a motor (not shown) and a chain (not shown) wound around the sprocket and partially fixed to the base 32. By the rotation of the sprocket, the base 32 is moved on the rail 31 via the chain. The moving device of the base 32 is not limited to the chain of the present example, and any moving device such as a pinion rack can be adopted. A turntable 35 is mounted on the base 32 so as to be freely rotatable horizontally. At four corners on the turntable 34, the four corners of the support table 37 of the pallet 36 are moved up and down to control the attitude of the rotating device 11. The lifting mechanism 38 is provided, and the lifting mechanism 38 is configured by a mechanism such as a hydraulic jack or a screw jack.

The support table 37 is provided with a transport roller 39 for transporting the pallet 36. A reference guide 40 is provided on one side of the support table, and a reference guide 40 operated by an actuator 41 is provided on the other side. A pressing guide 42 is provided which is capable of coming and going with respect to.

Next, the procedure of disassembly of the electric motor using the above-described disassembly and assembly support apparatus will be described.

The rotating device 11 is carried from the inspection line onto the support table 37 of the linear truck 30 while being received by the work receiving portion 43 and placed on the pallet 36.
Therefore, by operating the pressing guide 42 by the actuator 41 to press the pallet against the reference guide 40,
The pallet 36 is fixed on a support table 37. When the pallet is pressed and fixed to the reference guide, the main shaft 12 of the rotating device on the pallet is positioned at a predetermined position on the support table 37. This positioning is basically performed when the linear track 30 is moved next and the spindle 12 of the rotating device on the linear track 30 is brought close to the holding device, so that the spindle 12 and the connecting member 10 are automatically aligned. It is designed to be. Then, the user operates the handle 17 to operate the connecting member 10 and screw it into the threaded portion of the main shaft 12.

Next, the fixing member 26 is pressed against the holding member 9 by the actuator 16, and
As a result, the holding member 9 and eventually the main shaft 12 are firmly fixed to the carriage 5. In this case, the posture of the rotating device is confirmed by the posture confirmation sensor.

When the main shaft is fastened by the connecting member 10,
The hole 9 </ b> C of the holding member 9 has a taper angle slightly larger than the taper angle of the main shaft 12, and the main shaft 1 is screwed with the coupling member 10.
It is preferable that the main shaft be fitted tightly into the hole of the holding member as 2 is pulled toward the holding member 9 side.

As described above, the spindle 12 to the rotating device 1
1 is a cantilevered support state of the column 1. In this state, the actuators 16 and 19 are operated by the detection of the posture confirmation sensors 26 and 27 to confirm and correct the posture of the rotating device 11, and then the linear track 30 or the holding device 3 is moved. And disassemble. By releasing the bolt connection between the rear plate (left side in FIG. 2) and the yoke of the rotating device 11 and moving the truck 30 forward, the front end plate, the yoke,
The stator portion 14 such as the stator moves together with the track 30, and the main shaft 15, the rear end plate, and the rotor portion 13 such as the rotor remain while being held by the holding member 9, and rotate with the stator portion. The child part will be disassembled.

At the time of the disassembly work, a contact detection mechanism such as a load cell is installed in the holding device 3 to measure a load generated during the work, and to detect an overload caused by contact between the rotor and the stator. Alternatively, it is preferable to provide a landing detection mechanism that prevents an excessive load from being applied to the rotor when the rotor 13 is transferred to another pallet by releasing the connection with the connecting member 10 after disassembly.

Incidentally, the assembling work is performed in a work process reverse to that of the disassembling work.

According to the present embodiment, the horizontal disassembly, assembly and automation of the rotating device 11 can be performed, the burden on the worker involved in disassembling or assembling the rotating device can be reduced, 3K measures can be taken, and short-time work and labor saving can be realized. Can be achieved. Also,
Without using a crane or the like, safe and smooth work can be realized, and the space occupied by the crane or the like can be reduced.

FIG. 4 shows another embodiment of the pallet according to the present invention.

In the above embodiment, the attitude control of the rotating device 11 is performed by the holding device 3 and the linear track unit 30. However, the present embodiment is characterized in that the attitude control can be performed on the pallet 50.

The work receiving member of the pallet 50 is a roller 51.
The rollers 51 are disposed at four positions on the pallet 50, and the tangents of the rollers passing through the contact points between the rotating device 11 and the rollers intersect in a V-shape. The roller 51 is supported by a sliding block 52 that can move on a pallet.
Are moved left and right so that they can come and go with each other. The screw shaft is rotatably supported on a pallet by a bearing 54, and is rotated by rotating means such as a handle (not shown). The gap adjusting member 53 may be a hydraulic cylinder or the like instead of the screw shaft.

The pallet 50 of the present embodiment is configured as described above, and when the rotating device 11 is mounted thereon,
When the rotating device 11 is placed on the roller 51 as a work receiving portion on the pallet 12, the left and right centers are always positioned at a fixed position. Further, a height adjusting mechanism 53 is provided to adjust the interval between the rollers 51 so that the height of the rotating device supported by the rollers can be adjusted, so that the height setting and leveling of the rotating device 11 can be performed on a pallet. The disassembly and the alignment with the holding device 3 on the assembly support device are simplified.

According to this embodiment, the mechanism for controlling the posture is simplified, and further space saving and rationalization can be achieved.

Although the above embodiment has been described mainly with reference to an example of an electric motor, the present invention can, of course, be applied to a rotating device such as a generator having a stator and a rotor. The carriage can be moved up and down freely. However, if the carriage is dedicated to a rotating device of a certain size, the carriage can be omitted.

[0041]

As described above, according to the present invention, the main body of the rotating device is horizontally and cantilevered, and the stator and the rotor portion of the rotating device are disassembled by a horizontal pull-out and insertion method. It can be assembled and assembled, does not require the process of erecting rotating equipment for disassembly and assembly, and does not require a device for lifting the rotating equipment, saving space in the space required for lifting equipment, and lifting work And rotating equipment can be performed safely and efficiently.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a disassembly and assembly support apparatus for rotating equipment according to the present invention.

FIG. 2 is an enlarged view of a rotating device holding unit in FIG. 1;

FIG. 3 is an enlarged view of a linear track portion in FIG. 1;

FIG. 4 is a diagram showing another example of a pallet used in the disassembly / assembly support device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Column, 2 ... Base part, 3 ... Holding device, 4 ...
-Arm part, 5 ... Carriage, 6 ... Slider, 7 ... Guide rail, 8, 22, 25, 41 ... Actuator, 9 ... Holding member, 10 ... Connecting member, 11 ... rotating equipment, 12 ... main shaft, 13 ... rotor part, 14 ... stator part, 16 ... operation shaft, 17 ... handlebar, 21 ... fixing member, 23 ... .. Locking heads, 24 ... brackets, 2
6, 27 ... posture confirmation sensor, 37 ... support table,
Reference numeral 30: linear track, 31: rail, 32: base, 33: moving device, 34: sprocket, 35
... Turntable, 36, 50 ... Pallet, 37 ...
・ Support table, 38 ・ ・ ・ Elevating mechanism, 39 ・ ・ ・ Roller,
40 ... Reference guide, 42 ... Press guide, 43 ... Work receiver, 51 ... Roller, 52 ... Block, 53 ...
・ Screw shaft

Continued on front page (72) Inventor Yoshio Noguchi 3-2-2, Sachimachi, Hitachi, Ibaraki Prefecture Within Hitachi Engineering Services Co., Ltd. (72) Inventor Daisuke Koyama 4-6-1 Kanda Surugadai, Chiyoda-ku, Tokyo Hitachi, Ltd. Inside the factory

Claims (3)

[Claims] A disassembly / assembly support device for disassembling a rotating device such as an electric motor into a rotor portion and a stator portion or assembling a rotor portion and a stator portion, comprising: an upright column; A connecting member that connects to the end of the main shaft of the device in a horizontal state, and a holding device that is supported by the column and holds the connecting member, holds the main shaft in a horizontal and cantilevered state, A disassembly / assembly support device for rotating equipment, which supports assembly. 2. The holding device includes a carriage that can move up and down along a column, a holding member that is movably provided on the carriage and holds a connecting member, and a fixing member that fixes the holding member to the carriage. 2. The disassembly / assembly support apparatus for a rotating device according to claim 1, wherein alignment and attitude control during disassembly or assembly of the rotating device are enabled. 3. The disassembly of the rotating device according to claim 1 or 2,
A linear track is attached to the assembly support device, a pallet is placed on the linear track, and the pallet has rollers that are rotatable with respect to each other and support rotating devices,
A disassembly / assembly support device for a rotating device, which is capable of aligning the rotating device.