JP6920864B2 - Work insertion / removal jig - Google Patents

Description

The present invention relates to a work insertion / removal jig that grips and uses the rotation shaft of the work, and more particularly to a jig that can easily insert / remove the work.

Conventionally, various rotor extraction jigs are known as jigs for extracting a work from a casing. For example, as shown in FIG. 1, a jig main body 110 in which a horizontal portion 110a and a hanging portion 110b are formed in an inverted L shape, and a suspension mechanism 120 movably guided in the longitudinal direction of the horizontal portion 110a. The cantilever holding portion 130 is provided on the hanging portion 110b, and the cantilever holding portion 130 supports a part of the rotating shaft 152 of the horizontal axis rotating machine 150 so that the entire rotor 151 can be cantilevered. A configured rotor extraction jig is known.

JP-A-2002-153023

In the rotor extraction jig shown in FIG. 1, the rotor is extracted as follows. First, the overhead crane or the like is operated to raise the rotor 151 until just before it floats, and the horizontal position for substantially vertical suspension is detected by fine adjustment movement of the handle 126. Next, the overhead crane or the like is slowly moved to place both ends of the rotating shaft on the temporary placing material, and the handle 126 is further rotated to align the slide metal fitting 122 with the center of gravity display, and the rotor extraction jig. To remove. Finally, the tubular adapter is removed from the rotating shaft 152 and stored.

That is, in the technique disclosed in Patent Document 1, the suspension mechanism 120 is moved in the horizontal direction by rotating the handle 126 in FIG. 1, but at this time, the overhead crane is provided so that the jig body 110 does not shake. Also needs to be moved horizontally.

As described above, in the technique disclosed in Patent Document 1, it is necessary to traverse the overhead crane in the horizontal direction not only when the rotor is pulled out but also when the rotor can be vertically suspended or when the horizontal position thereof is detected. Is. Therefore, the overhead crane is frequently used, and the extraction of the rotor is complicated.

The present invention has been made in view of the above circumstances, and provides a work insertion / removal jig capable of easily inserting / removing a work (for example, a rotor) by reducing the frequency of use of an overhead crane. With the goal.

The present inventors have diligently studied a work insertion / removal jig that can easily insert / remove a work on the premise that the overhead crane is used less frequently than before. As a result, when detecting whether the work can be vertically suspended or its horizontal position, by using the elevator built in the work insertion / removal jig itself, the traverse operation of the overhead crane is not required, and the work can be easily inserted / removed. I got the knowledge that it can be done. The present inventors have completed the present invention based on the above findings. The summary is as follows.

[1] An L-shaped main body including a horizontal portion and a hanging portion extending downward in the vertical direction from one end of the horizontal portion, which is a work insertion / removal jig used by gripping the shaft of the workpiece. , The elevating mechanism attached to the hanging portion and expandable in the vertical direction, the gripping mechanism attached to the elevator to grip the shaft, the longitudinal portion attached along the horizontal portion, and the longitudinal portion. On the other hand, a work insertion / removal jig characterized by comprising two balance adjustment portions mounted so as to be movable in the horizontal direction and a balance adjustment mechanism including the balance adjustment unit.

[2] The work insertion / removal jig according to the above [1], wherein the elevating mechanism includes an automatic driving device.

[3] The work insertion / removal jig according to the above [1] or [2], wherein the balance adjustment mechanism includes an automatic driving device.

In the rotor insertion / removal jig according to the present invention, by using an elevator built in the work insertion / removal jig itself, it is not necessary to traverse the overhead crane when detecting whether the work can be vertically suspended or its horizontal position. be able to. As a result, according to the rotor insertion / removal jig according to the present invention, the work can be easily inserted / removed.

FIG. 1 is a side perspective view showing a conventional rotor extraction jig. FIG. 2 is a perspective view showing an example of the work insertion / removal jig of the present embodiment. FIG. 3 is a conceptual diagram showing a method of extracting a work using the work insertion / removal jig of the present embodiment. FIG. 4 is a conceptual diagram showing a method of inserting a work using the work inserting / removing jig of the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. These embodiments are not limited to the present invention. In addition, the components of the above-described embodiment include those that can be easily replaced by those skilled in the art, or those that are substantially the same. Further, various embodiments included in the above-described embodiments can be arbitrarily combined within a range of self-evident by those skilled in the art.

<Work insertion / removal jig>
First, the work insertion / removal jig of the present invention will be described.
FIG. 2 is a perspective view showing an example of the work insertion / removal jig of the present embodiment. The work insertion / removal jig 10 shown in the figure includes a main body 12, an elevating mechanism 14, a gripping mechanism 16, a balance adjusting mechanism 18, and a remote attitude control handle 20. Note that FIG. 2 shows a state in which the work insertion / removal jig 10 is gripping the rotor R (including the shaft A).

As shown in FIG. 2, the main body 12 is composed of a horizontal portion 12a extending in the horizontal direction and a hanging portion 12b extending vertically from one end of the horizontal portion 12a. The horizontal portion 12a is configured to support the balance adjusting mechanism 18 by matching its longitudinal direction with the longitudinal direction of the balance adjusting mechanism 18, which will be described later, and its upper end is suspended by an overhead crane (not shown). It is configured as follows. On the other hand, the hanging portion 12b is configured to support the elevating mechanism 14 described later at the lower end portion thereof.

The elevating mechanism 14 is configured such that the upper end portion thereof is supported by the hanging portion 12b of the main body 12 and the gripping mechanism 16 described later is supported by the lower end portion thereof. The elevating mechanism 14 is not particularly limited as long as it is a device whose vertical dimension continuously changes minutely. In the example shown in FIG. 2, in the elevating mechanism 14, the elevating portion 14b located vertically below the fixed portion 14a attached to the hanging portion 12 of the main body 12 can be moved in the vertical direction by the driving portion 14c. It is configured as follows. The drive unit 14c can include not only a manual driving device (ratchet device or the like) but also an automatic driving device (motor). As the automatic operation equipment, in addition to electric motors, hydraulic equipment (hydraulic cylinder), pneumatic equipment, hydraulic equipment and the like can be adopted. When a manual driving device is used, it can be adjusted by the rotation angle of the handle, which is advantageous for fine adjustment of ascending / descending. On the other hand, when an automatic driving device is used, it is advantageous in that it can reliably perform ascending / descending when the workpiece weighs 500 kg or more.

The gripping mechanism 16 is configured such that its upper end is fixed and supported by the elevating mechanism 14 by two fasteners X and X. The gripping mechanism 16 includes an upper plate 16a located on the elevating mechanism 14 side (upper side in the vertical direction), a lower plate 16b located on the opposite side (lower side in the vertical direction) of the elevating mechanism 14, and these plates 16a and 16b. Includes two V-blocks 16c, 16c that can move vertically between them. The lower plate 16b is curved downward in FIG. 2 in order to sandwich the shaft of the work described later together with the V blocks 16c and 16c. Instead of the lower plate 16b, a V block paired with the V block 16c may be provided.

The balance adjusting mechanism 18 is configured to be supported by the horizontal portion 12a so that its longitudinal direction coincides with the longitudinal direction of the horizontal portion 12a of the main body 12. The balance adjusting mechanism 18 includes a shaft 18a, weights 18b and counterweights 18c attached to both ends of the shaft 18a, respectively. The balance adjusting mechanism 18 is mounted on the horizontal portion 12a of the main body 12, and for example, power is transmitted by operating the handle Y (via a gear, a cam, etc. (not shown)), and the balance adjusting mechanism 18 is transmitted in the horizontal direction with respect to the main body 12. It is configured to be movable. The balance adjusting mechanism 18 can also include an automatic driving device. In this case, it is advantageous in that the balance adjustment can be reliably performed when the work weight is 500 kg or more.

The remote control control handle 20 is an optional component unlike the above-mentioned components 12 to 18. The remote control control handle 20 has a shape extending from a T-shaped handle to a portion 14a to 14c of the elevating mechanism 14 so as to be detachably engaged with these portions. In the example shown in FIG. 2, the remote control control handle 20 engages with the elevating mechanism 14 by inserting the portion opposite to the handle into the portion provided at the end of the elevating portion 14b from above in the vertical direction. ing. The remote control control handle 20 can suppress the shaking of the jig 10 during the traverse operation of the overhead crane and enhance the safety.

<How to use the work insertion / removal jig>
Next, a method of using the work insertion / removal jig of the present embodiment including such a component will be described separately for a method of extracting the work and a method of inserting the work into the work.

[How to extract the work]
FIG. 3 is a conceptual diagram showing a method of extracting a work using the work removing / inserting jig of the present embodiment, and FIG. 3A shows a step (step 1) of inserting a rotor shaft A of the work into the gripping mechanism 16. Shown, (b) shows a stage (step 2) in which the shaft A is gripped by a pair of upper and lower V blocks B, B, and (c) is a stage (step 2) in which the gripped shaft is moved upward in the vertical direction by the elevating mechanism 14. 3) is shown, (d) shows a step (step 4) of horizontally correcting the tilted rotor R by the balance adjustment mechanism 18, and (e) shows a step of pulling out the rotor R from the stator S and placing it on the stand P. (Step 5) is shown, (f) shows a step (step 6) of releasing the gripping of the shaft A by the pair of upper and lower V blocks B, B, and (g) shows the shaft of the rotor R whose gripping mechanism 16 is a work. The step (step 7) of separating from A is shown. In the figure, the hook H for suspending the jig 10 is supported by an overhead crane (not shown).

In step 1 (FIG. 3A), the overhead crane is operated downward in the vertical direction to align the vertical position of the gripping mechanism 16 with the vertical position of the rotor R axis A (height adjustment). At this time, it is preferable that the final height adjustment is performed by the elevating mechanism 14 instead of the overhead crane because the height can be adjusted with high accuracy.

Then, after this height adjustment, the gripping mechanism 16 is moved in the direction of the arrow in the horizontal direction toward the axis A of the rotor R by the traversing operation of the overhead crane, and the gripping mechanism 16 is fitted to the axis A of the rotor R. .. At this time, it is preferable to use a remote control control handle (not shown) in that the jig 10 can be suppressed from shaking and safety can be improved. After step 1, turn off the overhead crane that will not be used for a while.

In step 2 (FIG. 3B), the rotor R is moved by moving the V block B located on the lower side in the vertical direction of the pair of upper and lower V blocks B, B in the direction of the arrow (upper in the vertical direction). It is fixed to the gripping mechanism 16. The partial view shown on the right side of FIG. 3B is a conceptual diagram showing a fixed state of the V blocks B and B and the shaft A of the rotor R.

In step 3 (FIG. 3 (c)), in order to sufficiently separate the rotor R from both the upper inner wall and the lower inner wall of the stator S, the elevating mechanism 14 is used to vertically move the axis A of the rotor R upward. Lift to. At this time, the rotor R is tilted as shown in the figure. The rotor R is relatively close to the upper surface of the stator S on the side close to the horizontal gripping mechanism 16 (right side in the figure), and the stator S on the side far from the horizontal gripping mechanism 16 (left side in the figure). Relatively close to the underside of. Therefore, when the overhead crane is operated in this state to pull out the rotor R in the horizontal direction, the side of the rotor R close to the horizontal gripping mechanism 16 is the upper inner wall of the stator S, and the rotor R is gripped in the horizontal direction. The side far from the mechanism 16 may come into contact with the inner wall on the lower side of the stator S, and good extraction may not be realized.

In step 4 (FIG. 3D), the rotor R is horizontally corrected by the balance adjusting mechanism 18 in order to realize good extraction of the rotor R. Specifically, the balance adjusting mechanism 18 is moved to the side opposite to the rotor R in the horizontal direction with respect to the gripping mechanism 16, and the inclination of the rotor R is corrected to return the rotor R to the horizontal position. As a result, the rotor R is located equidistant from both the uppermost portion and the lowermost portion of the inner wall of the stator S.

Step 5 (FIG. 3 (e)) shows a state after the overhead crane is turned on and the rotor R is pulled out from the stator S. As described above, since the rotor R is located equidistant from both the uppermost portion and the lowermost portion of the inner wall of the stator S in step 4, the rotor R and the stator S are located on either side in the vertical direction. There is enough space. As a result, the rotor R can be pulled out from the stator S in the horizontal direction by the traversing operation of the overhead crane. When pulling out the rotor, it is preferable to use a remote control control handle (not shown) in that the jig and the rotor R can be suppressed from shaking and safety can be improved.

Then, when the horizontal position of the rotor R and the horizontal position of the pedestal P match, the overhead crane is moved in the direction of the arrow (downward in the vertical direction) and the rotor R is placed on the pedestal P.

In step 6 (FIG. 3 (f)), in order to suspend the jig horizontally in the next step (FIG. 3 (g)) without the rotor R, the balance adjusting mechanism 18 is placed in the horizontal direction with respect to the gripping mechanism 16. Move it to the rotor R side and return it to its original position. Then, by moving the V block B located on the lower side in the vertical direction of the pair of upper and lower V blocks B, B in the direction of the arrow (downward in the vertical direction), the fixing of the rotor R by the gripping mechanism 16 is released. The partial view shown on the right side of FIG. 3 (f) is a conceptual diagram showing a defixed state of the V blocks B and B and the shaft A of the rotor R.

In step 7 (FIG. 3 (g)), the gripping mechanism 16 is separated from the axis A of the rotor R which is a work. Specifically, the gripping mechanism 16 is separated from the rotor R in the horizontal direction (direction of the arrow in the horizontal direction), and then the elevating mechanism 14 is moved upward in the vertical direction (direction of the arrow in the vertical direction) to return to the original position. Return it, and finally move the jig 10 itself upward in the vertical direction (in the direction of the remaining arrows) with an overhead crane. When the gripping mechanism 16 is separated from the rotor R in the horizontal direction, it is preferable to use a remote control control handle (not shown) in that the jig 10 can be suppressed from shaking and safety can be improved.

According to the work (for example, rotor) extraction method as described above, the inclination of the rotor caused by separating the rotor from the stator in the vertical direction before extracting the work from the stator can be controlled regardless of the traverse operation of the overhead traveling crane. It can be corrected by the lifting mechanism built into the jig. Therefore, the frequency of use of the overhead traveling crane can be suppressed to a low level, the workability can be significantly improved as compared with the conventional case, and the work can be easily extracted.

[How to insert the work]
FIG. 4 is a conceptual diagram showing a method of inserting a work using the work insertion / removal jig of the present embodiment, and FIG. Blocks B and B indicate a stage (step 8) in which the shaft A is gripped, (b) indicates a stage (step 9) in which the gripped shaft A is moved upward in the vertical direction by an overhead crane, and (c) is tilted. The step (step 10) of horizontally correcting the rotor R by the balance adjusting mechanism 18 is shown, (d) shows the step of inserting the rotor R into the stator S (step 11), and (e) shows the gripped shaft A. The step (step 12) of moving the crane downward in the vertical direction by the elevating mechanism 14 is shown. In the figure, the hook H for suspending the jig 10 is supported by an overhead crane (not shown).

In step 8 (FIG. 4A), the overhead crane is first operated downward in the vertical direction to align the vertical position of the gripping mechanism 16 with the vertical position of the rotor R axis A (height adjustment). At this time, the final fine adjustment can be performed by the elevating mechanism 14 instead of the overhead crane.

Then, after the height adjustment is completed, the gripping mechanism 16 is moved horizontally toward the shaft A of the rotor R by the traversing operation of the overhead crane, and the gripping mechanism 16 is fitted to the shaft A of the rotor R. At this time, it is preferable to use a remote control control handle (not shown) in that the shaking of the jig can be suppressed and the safety can be improved.

Further, the shaft A of the rotor R is fixed to the gripping mechanism 16 from both sides in the vertical direction by moving the V block B lower in the vertical direction to the upper side in the vertical direction among the pair of upper and lower V blocks B, B. After step 8, turn off the overhead crane that will not be used for a while.

In step 9 (FIG. 4B), the gripped shaft A is moved upward in the vertical direction in order to align the vertical positions of the rotor R and the stator S, and the rotor R is placed on the platform by an overhead crane or an elevating mechanism 14. Move away from P. At this time, the rotor R is tilted as shown in the figure. That is, the side of the rotor R closer to the horizontal gripping mechanism 16 (right side in the figure) is slightly upward in the vertical direction with respect to the side farther from the horizontal gripping mechanism 16 of the rotor (left side in the figure). Will be located. Therefore, when the rotor R is inserted in the horizontal direction toward the stator S in this state, the side closer to the gripping mechanism 16 of the rotor R is far from the inner wall below the stator S and the gripping mechanism 16 of the rotor R. The side comes into contact with the inner wall on the upper side of the stator S, and good insertion cannot be realized.

In step 10 (FIG. 4 (c)), the uppermost position of the rotor R in the vertical direction is sufficiently separated from the vertical position of the inner wall on the upper side of the stator S, and the lowermost position of the rotor R in the vertical direction is set to the lower side of the stator S. The rotor R is corrected horizontally by the balance adjusting mechanism 18 so as to be sufficiently separated from the vertical position of the inner wall of the rotor R. Specifically, the balance adjusting mechanism 18 is moved to the side opposite to the rotor R in the horizontal direction with respect to the gripping mechanism 16, and the inclination of the rotor R is corrected to return the rotor R to the horizontal position.

In step 11 (FIG. 4D), the overhead crane is turned on and the rotor R is inserted into the stator S. Due to the correction in step 10, the uppermost end of the rotor R in the vertical direction is sufficiently separated from the inner wall on the upper side of the stator S, and the lowermost end in the vertical direction of the rotor R is sufficiently separated from the inner wall on the lower side of the stator S. Therefore, the rotor R can be satisfactorily inserted into the stator S by the traversing operation of the overhead crane. When inserting the rotor R, it is preferable to use a remote control control handle (not shown) in that the jig and the rotor can be suppressed from shaking and safety can be improved.

In step 12 (FIG. 4 (e)), the gripped shaft A is moved downward in the vertical direction by the elevating mechanism 14. After the above operation is completed, the fixing of the shaft A to the gripping mechanism 16 is released, the balance adjusting mechanism 18 is moved to the rotor R side in the horizontal direction with respect to the gripping mechanism 16, and the jig is moved to the rotor R side after the fact. The gripping jig 10 is separated from the shaft A by the traverse operation and the vertical operation of the overhead crane. In the traverse operation of the overhead crane, it is preferable to use a remote control control handle (not shown) in that the shaking of the jig can be suppressed and the safety can be improved.

According to the above-mentioned method of inserting a work (for example, a rotor), the inclination of the rotor caused by adjusting the vertical position of the rotor to the vertical position of the stator before inserting the work into the stator is determined by the traverse operation of the overhead crane. Instead, it can be corrected by the lifting mechanism built into the jig. Therefore, the frequency of use of the overhead traveling crane can be suppressed to a low level, the workability can be significantly improved as compared with the conventional case, and the work can be easily inserted.

According to the present invention, the frequency of use of the overhead traveling crane can be reduced, and the work (for example, the rotor) can be easily inserted and removed. Therefore, the present invention is particularly useful in moving and installing workpieces in factories.

10 Work piece insertion / removal jig 12 Main body 12a Horizontal part 12b Hanging part 14 Lifting mechanism 14a Fixed part 14b Lifting part 14c Drive part 16 Gripping mechanism 16a Upper plate 16b Lower plate 16c, BV block 18 Balance adjustment mechanism 18a Shaft 18b Weight 18c Counterweight 20 Remote attitude control handle A axis H hook R rotor S stator X fastener Y handle

Claims (1)

A work insertion / removal jig that is used by gripping the work shaft.
An L-shaped main body including a horizontal portion and a hanging portion extending downward in the vertical direction from one end of the horizontal portion.
An elevating mechanism that is attached to the hanging part and can be expanded and contracted in the vertical direction,
Attached to the elevator structure, a gripping mechanism for gripping the shaft,
A balance adjusting mechanism including a longitudinal portion attached along the horizontal portion and two balance adjusting portions mounted so as to be movable in the horizontal direction with respect to the longitudinal portion.
A work insertion / removal jig characterized by being equipped with.

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