Motor rotor extraction device

Abstract

The utility model discloses a motor rotor draws and passes device, including flat plate base, support and auxiliary support frame, support and auxiliary support frame all set up on the flat plate base, be provided with stator body on the flat plate base, be provided with rotor body in the stator body, the support sets up the left side of stator body, the auxiliary support frame sets up the right side of stator body, be provided with the tractor that can move left and right on the support, the tractor with the left end cooperation of rotor body, the right end of rotor body is provided with extension rod, extension rod with auxiliary support frame sliding fit. The utility model discloses motor rotor draws and passes device, clever design, practical function, wide application range, action precision is high, effectively solved the problem that the orientation of the rotor needs to be adjusted repeatedly by the on -the -spot worker in the prior art, the operation is difficult, and the security risk is high.

Description

Technical Field

[0001] This utility model relates to the field of motor maintenance equipment, and in particular to a motor rotor puncture device. Background Technology

[0002] Large motors are large in size and weight, so in traditional large motor maintenance processes, the rotor removal process usually requires the use of a crane in the workshop. During the lifting and removal of the rotor, smooth operation should be maintained to avoid sudden force and prevent mechanical impact and damage to components. However, in practice, it has been found that the crane's running accuracy is low, requiring on-site workers to repeatedly adjust the rotor's orientation, making the operation difficult and posing high safety risks. Therefore, developing a new type of motor rotor removal device has become an urgent problem for those skilled in the art.

[0003] hoisting Utility Model Content

[0004] The purpose of this invention is to provide a motor rotor extraction device to solve the problem that in the prior art, the extraction of large motor rotors requires on-site workers to repeatedly adjust the orientation of the rotor, which is difficult to operate and poses a high safety risk.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a motor rotor insertion device, comprising a flat base, a bracket, and an auxiliary support frame. Both the bracket and the auxiliary support frame are mounted on the flat base. A stator body is mounted on the flat base, and a rotor body is mounted inside the stator body. The bracket is located on the left side of the stator body, and the auxiliary support frame is located on the right side of the stator body. A traction vehicle capable of left and right movement is mounted on the bracket. The traction vehicle engages with the left end of the rotor body, and an extension rod is located at the right end of the rotor body, with the extension rod slidingly engaging with the auxiliary support frame.

[0007] Furthermore, the bottom of the bracket is provided with adjustable feet that cooperate with the flat plate base.

[0008] Furthermore, the tractor is equipped with a V-shaped fastener that engages with the left end of the rotor body.

[0009] Furthermore, the tractor is equipped with a first height adjustment mechanism and a left-right adjustment mechanism that cooperate with the V-shaped fastener.

[0010] Furthermore, the tractor is equipped with a traveling mechanism that cooperates with the bracket.

[0011] Furthermore, the walking mechanism includes a walking motor and a walking gear, the top of the bracket is provided with a slide rail that cooperates with the tractor, and the edge of the slide rail is provided with a rack that cooperates with the walking gear on the output shaft of the walking motor.

[0012] Furthermore, the right end of the rotor body is fixedly connected to the left end of the extension rod via a connecting clamp.

[0013] Furthermore, the bottom end of the auxiliary support frame is fixed to the flat base by bolts, and the top end of the auxiliary support frame is provided with a second height adjustment mechanism that cooperates with the extension rod.

[0014] Furthermore, a displacement sensor that cooperates with the rotor body is provided on the left end face of the stator body.

[0015] Furthermore, a displacement sensor that cooperates with the rotor body is provided on the right end face of the stator body.

[0016] Rotor extraction:

[0017] Step 1: Fix the stator body onto the flat base and record the accurate center height of the rotor body.

[0018] Step 2: Place the bracket on the flat base, and adjust the center of the bracket according to the center height and parallelism of the rotor body shaft through the first height adjustment mechanism and the left and right adjustment mechanism. After finding the center, fix the bracket.

[0019] Step 3: The mobile tractor inserts the rotor body shaft head into the V-shaped fastener, adjusts the up, down, left, and right positions so that the lower plate of the V-shaped fastener is just right to support the bottom of the rotor body shaft head, and tightens the V-shaped fastener.

[0020] Step 4: Install an extension rod on the right end of the rotor body using a connecting clamp, install an auxiliary support frame on the flat base, and adjust the support height of the extension rod using the second height adjustment mechanism.

[0021] Step 5: Install a displacement sensor at a 90° angle vertically on the upper part of the left end face of the stator body, install a displacement sensor on each side horizontally on the left end face of the stator body, and install a displacement sensor on the upper part of the right end face of the stator body.

[0022] Step 6: Insert epoxy resin plates between the stator bore and the rotor core in all directions and fix them to the stator body.

[0023] Step 7: Connect all motor power, including the displacement sensor signal power, start the motor of the walking mechanism, and the tractor will drive the rotor body to move to the left of the support.

[0024] Step 8: During the movement of the rotor body, the vertical and horizontal displacement sensors on the left end face of the stator body monitor the movement posture of the rotor body and adjust it according to the set displacement parameters to continuously extract the rotor body out of the stator cavity.

[0025] Step nine: During the movement of the rotor body, a displacement sensor installed on the upper part of the rotor body monitors the gap between the outer diameter of the rotor body and the inner diameter of the stator body. Based on the change in the gap, the second height adjustment mechanism is activated to adjust the center height of the rotor body, ensuring that the right end of the rotor body continues to move in the stator cavity according to the set parameter values. After the rotor body is completely extracted, the V-shaped fasteners and extension rods that fix the rotor body shaft head are loosened, and the gantry crane lifts the rotor body to complete the rotor extraction work.

[0026] Through the rotor:

[0027] Step 1: With the bracket and stator body still in place, place the left end of the rotor body on the V-shaped fastener of the tractor. Connect the extension rod to the right end of the rotor body. Start the tractor and bring the right end of the rotor core close to the stator cavity at the left end of the stator body. Align the rotor body with the center of the stator cavity. After alignment, fix the left end of the rotor body, adjust all displacement sensors, and fix the protective pad inside the stator cavity.

[0028] Step 2: Start the tractor to re-enter the rotor body into the stator cavity. When re-entering the rotor body, control the gaps in the top, bottom, left and right sides.

[0029] Step 3: For motors of different specifications, the rotor can be pulled through. The center height of the bracket and auxiliary support frame can be adjusted or the motor can be raised to meet the requirements of the rotor pulling through operation.

[0030] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0031] The rotor insertion device of this invention features a height-adjustable base at the bottom of its support frame, allowing for the adjustment of the frame's height to accommodate different stator models. The tractor unit of this invention connects to V-shaped fasteners via a first height adjustment mechanism and a left / right adjustment mechanism, enabling the V-shaped fasteners to mate with different rotor models. The auxiliary support frame of this invention is equipped with a second height adjustment mechanism that engages with an extension rod, allowing the auxiliary support frame to mate with different rotor models. In summary, this rotor insertion device is ingeniously designed, functionally practical, widely applicable, and highly precise, effectively solving the problems of existing technologies where large motor rotor insertion requires repeated adjustments of the rotor's orientation by on-site workers, resulting in high operational difficulty and safety risks. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] Figure 1 This is a front view of the motor rotor extraction device of this utility model (state one).

[0034] Figure 2 This is a front view of the motor rotor extraction device of this utility model (state two).

[0035] Figure 3 for Figure 2 Left view;

[0036] Figure 4 for Figure 2 Right view;

[0037] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0038] Figure 6 for Figure 1 Enlarged view of section B in the middle.

[0039] Explanation of reference numerals in the attached drawings: 1. Flat base; 2. Bracket; 3. First height adjustment mechanism; 4. Rotor body; 5. Stator body; 6. Connecting clamp; 7. Extension rod; 8. Displacement sensor; 9. V-shaped fastener; 10. Left and right adjustment mechanism; 11. Tractor; 12. Walking mechanism; 13. Adjustable feet; 14. Second height adjustment mechanism; 15. Auxiliary support frame. Detailed Implementation

[0040] like Figures 1 to 6 As shown, a motor rotor insertion device includes a flat base 1, a bracket 2, and an auxiliary support frame 15. The bracket 2 and the auxiliary support frame 15 are both mounted on the flat base 1. A stator body 5 is mounted on the flat base 1, and a rotor body 4 is housed within the stator body 5. Figure 3 As shown, a displacement sensor 8, which cooperates with the rotor body 4, is provided on the left end face of the stator body 5. The number of displacement sensors 8 is three. Figure 4 As shown, a displacement sensor 8 that cooperates with the rotor body 4 is provided on the right end face of the stator body 5. The number of displacement sensors 8 is one.

[0041] The bracket 2 is located on the left side of the stator body 5, and the bottom end of the bracket 2 is provided with an adjustable foot 13 that cooperates with the flat base 1. The auxiliary support frame 15 is located on the right side of the stator body 5. The bottom end of the bracket 2 of the motor rotor insertion device of this utility model is provided with an adjustable foot 13 that can adjust the height, so that different models of stator bodies 5 can be used by adjusting the height of the bracket 2.

[0042] Specifically, the support 2 is equipped with a tractor 11 capable of moving left and right, and the tractor 11 is equipped with a traveling mechanism 12 that cooperates with the support 2. The traveling mechanism 12 includes a traveling motor and a traveling gear. The top of the support 2 is equipped with a slide rail that cooperates with the tractor 11, and the edge of the slide rail is equipped with a rack that cooperates with the traveling gear on the output shaft of the traveling motor. The tractor 11 cooperates with the left end of the rotor body 4.

[0043] Specifically, the tractor 11 is equipped with a V-shaped fastener 9 that mates with the left end of the rotor body 4. The V-shaped fastener 9 includes an upper plate and a lower plate, and both the lower surface of the upper plate and the upper surface of the lower plate are provided with V-shaped grooves that mate with the rotor body 4. The upper plate and the lower plate are detachably connected by bolts.

[0044] The tractor 11 is equipped with a first height adjustment mechanism 3 and a left-right adjustment mechanism 10 that cooperate with the V-shaped fastener 9. Both the first height adjustment mechanism 3 and the left-right adjustment mechanism 10 can be implemented by a screw-slider mechanism. The tractor 11 of the motor rotor insertion device of this utility model is connected to the V-shaped fastener 9 through the first height adjustment mechanism 3 and the left-right adjustment mechanism 10, so that the V-shaped fastener 9 can cooperate with different models of rotor bodies 4.

[0045] An extension rod 7 is provided at the right end of the rotor body 4, and the right end of the rotor body 4 is fixedly connected to the left end of the extension rod 7 via a connecting clamp 6. The extension rod 7 is slidably engaged with the auxiliary support frame 15.

[0046] The bottom end of the auxiliary support frame 15 is fixed to the flat base 1 by bolts, and the top end of the auxiliary support frame 15 is provided with a second height adjustment mechanism 14 that cooperates with the extension rod 7. The second height adjustment mechanism 14 can be implemented by a screw-slider mechanism or a cylinder mechanism. The auxiliary support frame 15 of the motor rotor insertion device of this utility model is provided with a second height adjustment mechanism 14 that cooperates with the extension rod 7, so that the auxiliary support frame 15 can be used with rotor bodies 4 of different models.

[0047] The operation process of this utility model is as follows:

[0048] Rotor extraction ( Figures 1 to 2 ):

[0049] Step 1: Fix the stator body 5 onto the flat base 1 and record the accurate center height of the rotor body 4.

[0050] Step 2: Place bracket 2 on flat base 1. According to the center height and parallelism of the rotor body 4 shaft, use the first height adjustment mechanism 3 and the left and right adjustment mechanism 10 to correct the center of bracket 2. After finding the center, fix bracket 2.

[0051] Step 3: The mobile tractor 11 inserts the rotor body 4 shaft head into the V-shaped fastener 9, adjusts the up, down, left, and right positions so that the lower plate of the V-shaped fastener 9 is just right to support the bottom of the rotor body 4 shaft head, and tightens the V-shaped fastener 9; (Note: The center height of the tightened rotor body 4 is consistent with the original recorded center height of the rotor body 4, ensuring that the center of the rotor body 4 is consistent with the center of the stator body 5)

[0052] Step 4: Install extension rod 7 on the right end of rotor body 4 via connecting clamp 6, install auxiliary support frame 15 on flat base 1, and adjust the support height of extension rod 7 via second height adjustment mechanism 14;

[0053] Step 5: Install a displacement sensor 8 at a vertical 90° angle on the upper left end face of the stator body 5, install a displacement sensor 8 on each side of the left end face of the stator body 5 in the horizontal direction, and install a displacement sensor 8 on the upper right end face of the stator body 5.

[0054] Step 6: Insert a 0.5mm thick and 100mm wide epoxy resin plate between the stator bore and the rotor core in all directions and fix it on the stator body 5.

[0055] Step 7: Connect all motor power supplies, including the signal power supply of displacement sensor 8, start the motor of walking mechanism 12, and tractor 11 drives rotor body 4 to move to the left of bracket 2.

[0056] Step 8: During the movement of the rotor body 4, the vertical and horizontal displacement sensors 8 on the left end face of the stator body 5 monitor the movement posture of the rotor body 4 and adjust it according to the set displacement parameters to continuously pull the rotor body 4 out of the stator cavity.

[0057] Step nine: During the movement of the rotor body 4, a displacement sensor 8 installed on the upper part of the rotor body 4 monitors the gap between the outer diameter of the rotor body 4 and the inner diameter of the stator body 5. Based on the change in the gap, the second height adjustment mechanism 14 is activated to adjust the center height of the rotor body 4, ensuring that the right end of the rotor body 4 continues to move in the stator cavity according to the set parameter value. After the rotor body 4 is completely extracted, the V-shaped fastener 9 and extension rod 7 that fix the shaft head of the rotor body 4 are loosened, and the gantry crane lifts the rotor body 4 to complete the rotor extraction work.

[0058] Through rotor ( Figures 2 to 1 ):

[0059] Step 1: With the bracket 2 and stator body 5 still in place, place the left end of the rotor body 4 on the V-shaped fastener 9 of the tractor 11. Connect the right end of the rotor body 4 to the extension rod 7. Start the tractor 11 and bring the right end of the rotor core of the rotor body 4 close to the stator cavity at the left end of the stator body 5. Align the center of the rotor body 4 with the stator cavity. After alignment, fix the left end of the rotor body 4, adjust all displacement sensors 8, and fix the protective pad inside the stator cavity.

[0060] Step 2: Start the tractor 11 to re-pass the rotor body 4 through the stator cavity. When re-passing the rotor body 4, control the gap parameters in the upper, lower and left and right sides to be within the range of 0.5mm.

[0061] Step 3: For motors of different specifications, the rotor can be pulled through. The center height of bracket 2 and auxiliary support frame 15 can be adjusted or the motor can be raised to meet the requirements of the rotor pulling operation.

[0062] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for removing and inserting a motor rotor, characterized in that: The device includes a flat base (1), a bracket (2), and an auxiliary support frame (15). The bracket (2) and the auxiliary support frame (15) are both mounted on the flat base (1). A stator body (5) is mounted on the flat base (1), and a rotor body (4) is mounted inside the stator body (5). The bracket (2) is mounted on the left side of the stator body (5), and the auxiliary support frame (15) is mounted on the right side of the stator body (5). A tractor (11) that can move left and right is mounted on the bracket (2). The tractor (11) is engaged with the left end of the rotor body (4), and an extension rod (7) is mounted on the right end of the rotor body (4). The extension rod (7) is engaged with the auxiliary support frame (15).

2. The motor rotor extraction device according to claim 1, characterized in that: The bottom end of the bracket (2) is provided with an adjustable foot (13) that cooperates with the flat base (1).

3. The motor rotor extraction device according to claim 1, characterized in that: The tractor (11) is provided with a V-shaped fastener (9) that engages with the left end of the rotor body (4).

4. The motor rotor extraction device according to claim 3, characterized in that: The tractor (11) is equipped with a first height adjustment mechanism (3) and a left and right adjustment mechanism (10) that cooperate with the V-shaped fastener (9).

5. The motor rotor extraction device according to claim 3, characterized in that: The tractor (11) is equipped with a traveling mechanism (12) that cooperates with the bracket (2).

6. The motor rotor extraction device according to claim 5, characterized in that: The walking mechanism (12) includes a walking motor and a walking gear. The top of the bracket (2) is provided with a slide rail that cooperates with the tractor (11). The edge of the slide rail is provided with a rack that cooperates with the walking gear on the output shaft of the walking motor.

7. The motor rotor extraction device according to claim 1, characterized in that: The right end of the rotor body (4) is fixedly connected to the left end of the extension rod (7) via a connecting clamp (6).

8. The motor rotor extraction device according to claim 1, characterized in that: The bottom end of the auxiliary support frame (15) is fixed on the flat base (1) by bolts, and the top end of the auxiliary support frame (15) is provided with a second height adjustment mechanism (14) that cooperates with the extension rod (7).

9. The motor rotor piercing device according to claim 1, characterized in that: A displacement sensor (8) that cooperates with the rotor body (4) is provided on the left end face of the stator body (5).

10. The motor rotor piercing device according to claim 1, characterized in that: A displacement sensor (8) that cooperates with the rotor body (4) is provided on the right end face of the stator body (5).

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