Rotor disassembling tool

Abstract

The utility model belongs to the technical field of rotor maintenance equipment, and discloses a pull rod, the lower end of the pull rod is provided with a pull claw, and the pull claw is used for transmitting axial tension to the bottom surface of a rotor; the support is provided with a lifting mechanism, and the lifting mechanism is used for driving the pull rod to ascend and descend; the upper end of the pull rod is in sliding connection with the support and can rotate in the horizontal direction relative to the support so as to adjust the angle of the pull claw. The rotor dismounting tool provided by the utility model can be used for conveniently and quickly dismounting the rotor from the reduction gearbox, so that the damage to the rotor is avoided, and the service life of the rotor is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rotor maintenance equipment technical field. BACKGROUND

[0002] The rotation speed of the motor is output by the rotor, and the rotation speed of the rotor output is high, and needs to be decelerated by the reduction box and then output to the executing mechanism. When the motor or the reduction box is maintained, the rotor and the reduction box need to be separated. At present, due to the lack of special rotor dismounting tool, violent dismounting is usually carried out, which is easy to damage the rotor and reduce the performance and service life of the rotor. CONTENT OF THE UTILITY MODEL

[0003] The application provides a rotor dismounting tool to solve the problems in the related art.

[0004] The utility model discloses a rotor dismounting tool which is characterized by the following technical scheme:

[0005] A rotor dismounting tool comprises:

[0006] A pull rod is provided with a pull pawl at the lower end, and the pull pawl is used to transmit axial tension to the bottom surface of the rotor;

[0007] A support is provided with a lifting mechanism, and the lifting mechanism is used to drive the pull rod to lift;

[0008] The upper end of the pull rod is connected to the support in a sliding mode, and can rotate in the horizontal direction relative to the support to adjust the angle of the pull pawl.

[0009] The utility model discloses a rotor dismounting tool which is characterized by the following technical scheme:

[0010] Further, the support comprises a vertical column and a movable plate, the upper end of the vertical column is connected to a top plate, and the lower end of the vertical column is connected to a bottom ring; the bottom ring is used to position the support in the circumferential direction;

[0011] The movable plate is arranged between the top plate and the bottom ring, and is connected to the top plate through the lifting mechanism;

[0012] The pull rod is arranged in the bottom ring; the pull rod penetrates through the movable plate and the top plate, and is connected to the movable plate and the top plate in a clearance fit mode respectively;

[0013] A bolt is arranged on the pull rod, and a pin hole for clamping the bolt is arranged on the movable plate;

[0014] The movable plate transmits axial tension to the pull rod through the bolt.

[0015] The pull rod is in clearance fit with the moving plate and the top plate, so that the pull rod can rotate relative to the moving plate and the top plate to adjust the angle of the pull claw, and the pull rod can also move axially to insert or disengage the pin from the pin hole, so as to lock the angle of the pull claw. When the lifting mechanism drives the moving plate to rise, the moving plate pushes the pin to rise, and since the pin is connected with the pull rod, the pull rod also rises with the pin, thereby transmitting the axial force to the pull claw.

[0016] Further, the moving plate is provided with two pin holes intersecting with each other. In this way, different angles of the pull claw can be locked.

[0017] Further, the stand column is distributed in a ring shape along the bottom ring. In this way, the structure of the bracket is more stable and less likely to shake, thereby ensuring the axial transmission of the pulling force.

[0018] Further, the end of the pull rod extending out of the top plate is provided with a pull ring. The pull ring can facilitate manual rotation of the pull rod.

[0019] Further, the lifting mechanism comprises a lead screw, a rotating rod and a plane bearing.

[0020] The lead screw penetrates through the top plate and the moving plate and is in clearance fit with the top plate and the moving plate, respectively.

[0021] The upper end of the lead screw is threadedly connected with the rotating rod, and the lower end of the lead screw transmits the axial pulling force to the moving plate through a anti-escape stopper.

[0022] The rotating rod is connected with the top plate through the plane bearing.

[0023] The rotating rod rotates to drive the lead screw to screw up and down, and the pre-tightening force of the threaded structure can provide the axial pulling force, without the need to increase additional pulling force devices, thereby simplifying the structure and reducing the cost. The rotating rod and the top plate are isolated by the plane bearing, the upper ring of the plane bearing is connected with the rotating rod, the lower ring of the plane bearing is connected with the top plate, and when the rotating rod rotates, the upper ring of the plane bearing rotates while the lower ring does not, thereby avoiding the interference of the top plate on the rotation of the rotating rod.

[0024] Further, the lead screw is threadedly connected with the rotating rod through a threaded sleeve. The threaded sleeve is used to increase the connection strength between the lead screw and the rotating rod, thereby prolonging the service life.

[0025] Further, the upper end of the rotating rod is also provided with a rotating handle. The rotating handle is used to rotate the rotating rod more labor-savingly, thereby improving the convenience of operation.

[0026] Further, there are three pull rods, which are distributed in an equidistant ring shape. The pull claws on the three pull rods act on the bottom surface of the rotor simultaneously, so that the bottom surface of the rotor is subjected to more uniform force.

[0027] Further, the pull claw comprises a bending part and a contact part, the contact part is connected with the pull rod through the bending part, and the contact part is used for abutting the rotor bottom surface.

[0028] The rotor dismounting tool can conveniently and quickly dismount the rotor from the reduction gearbox, avoids damaging the rotor, and prolongs the service life of the rotor. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 is a structural schematic view of the rotor dismounting tool in the embodiment;

[0031] Figure 2 is an assembly schematic view of the bottom ring and the bearing chamber in the embodiment;

[0032] Figure 3 is a sectional view of the rotor dismounting tool in the embodiment;

[0033] Figure 4 is a schematic view of the pull claw acting on the rotor bottom surface in the embodiment;

[0034] Figure 5 is a structural schematic view of the lifting mechanism in the embodiment. EMBODIMENT

[0035] The technical solutions in the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] In order to conveniently and quickly dismount the rotor from the reduction gearbox, avoid damaging the rotor, and prolong the service life of the rotor, with reference to Figure 1 The rotor dismounting tool comprises a lifting mechanism, a pull rod and a pull claw.

[0037] The pull rod 2 is provided with the pull claw at the lower end, and the pull claw is used for transmitting the axial pulling force to the rotor bottom surface.

[0038] A support is provided with a lifting mechanism for driving the pull rod 2 to lift;

[0039] The upper end of the pull rod 2 is slidingly connected to the support and can rotate relative to the support in the horizontal direction to adjust the angle of the pull claw.

[0040] The utility model discloses a pull rod 2 adjusts the angle of the pull claw, which can avoid the interference between the pull claw and the rotor main body, thereby ensuring that the pull claw can act on the bottom surface of the rotor smoothly, and then the lifting mechanism applies axial tension to the pull rod 2, which can pull the rotor out of the bearing chamber of the speed reducer, avoiding the collision of the rotor.

[0041] In the specific embodiment, the support includes a stand 4 and a movable plate 8, the upper end of the stand 4 is connected to a top plate 7, and the lower end of the stand 4 is connected to a bottom ring 1.

[0042] The bottom ring 1 is used for circumferential positioning of the support, as shown in Figure 2 The annular boss 101 on the bottom ring 1 is inserted into the opening end of the bearing chamber of the speed reducer, thereby playing a role in circumferential positioning of the support.

[0043] The movable plate 8 is arranged between the top plate 7 and the bottom ring 1 and is connected to the top plate 7 through the lifting mechanism.

[0044] The pull rod 2 is arranged in the bottom ring 1, and the pull rod 2 penetrates the movable plate 8 and the top plate 7 and is in clearance fit with the movable plate 8 and the top plate 7, respectively.

[0045] As shown in Figure 3 The pull rod 2 is provided with a latch 10, and the movable plate 8 is provided with a pin hole for clamping the latch 10.

[0046] The movable plate 8 transmits axial tension to the pull rod 2 through the latch 10.

[0047] The pull rod 2 is in clearance fit with the movable plate 8 and the top plate 7, so that the pull rod 2 can rotate relative to the movable plate 8 and the top plate 7 to adjust the angle of the pull claw, and the pull rod 2 can also move axially to insert or separate the latch 10 from the pin hole, thereby facilitating the locking of the angle of the pull claw. When the lifting mechanism drives the movable plate 8 to rise, the movable plate 8 pushes the latch 10 to rise, and since the latch 10 is connected to the pull rod 2, the pull rod 2 also rises with the latch 10, thereby transmitting the axial force to the pull claw.

[0048] In the specific embodiment, the movable plate 8 is provided with two pin holes intersecting at the axis. This facilitates the locking of different angles of the pull claw.

[0049] For example, before the disassembly rotor tool is put on the rotor, the pull rod 2 is pulled up, the pin 10 is disengaged from the pin hole, and is rotated 90°, then the pull rod is lowered, the pin 10 is engaged into another pin hole, so that when the disassembly rotor tool is put down to the rotor, the pull claw will not interfere and bump with the rotor due to random deflection. When the disassembly rotor tool is lowered to the height that the pull claw is below the bottom surface of the rotor, the pull rod 2 is pulled up again, the pull rod 2 is unlocked, and is rotated 90° in the reverse direction to make the pull claw face the rotor and extend below the bottom surface of the rotor.

[0050] Reference Figure 4 As shown in the drawings, in the embodiment, the pull claw comprises a bending part 201 and a contact part 202, the contact part 202 is connected with the pull rod 2 through the bending part 201, and the contact part 202 is used to adhere to the bottom surface of the rotor. The bending part 201 makes the contact part 202 extend to the bottom surface of the rotor, the contact part 202 adheres to the bottom surface of the rotor, can form surface contact, and the bottom surface of the rotor is more uniform in stress and is not easy to be damaged. In the embodiment, the contact part 202 has a contact plane to facilitate adhesion to the balance disc 11 of the bottom surface of the rotor.

[0051] In the embodiment, the stand column 4 is annularly distributed along the bottom ring 1. In this way, the structure of the bracket is more stable and is not easy to shake, and axial transmission of the pulling force is ensured. In order to facilitate taking the disassembly rotor tool, a grabber 3 is further arranged on the stand column 4.

[0052] In the embodiment, one end of the pull rod 2 extending out of the top plate 7 is provided with a pull ring 5. The pull ring 5 can facilitate manual rotation of the pull rod 2.

[0053] Reference Figure 5 As shown in the drawings, in the embodiment, the lifting mechanism comprises a lead screw 12, a rotating rod 9 and a plane bearing 14;

[0054] The lead screw 12 penetrates through the top plate 7 and the movable plate 8, and is in clearance fit with the top plate 7 and the movable plate 8 respectively;

[0055] The upper end of the lead screw 12 is in threaded connection with the rotating rod 9, and the lower end of the lead screw 12 transmits axial pulling force to the movable plate 8 through an anti-escape stop piece;

[0056] The rotating rod 9 is connected with the top plate 7 through the plane bearing 14.

[0057] The rotating rod 9 rotates to drive the screw rod 12 to screw up and down, and the pre-tightening force of the screw structure can provide axial tension without adding additional tension device, simplifying the structure and reducing the cost. The rotating rod 9 is isolated from the top plate 7 by the plane bearing 14, the upper ring of the plane bearing 14 is connected with the rotating rod 9, the lower ring of the plane bearing 14 is connected with the top plate 7, when the rotating rod 9 rotates, the upper ring of the plane bearing 14 rotates, while the lower ring does not rotate, thereby avoiding the interference of the top plate 7 to the rotation of the rotating rod 9.

[0058] In the embodiment, the lead screw is connected with the rotating rod 9 through the threaded sleeve 13: the rotating rod 9 is a hollow structure, the threaded sleeve 13 is fixedly connected in the rotating rod 9, the screw rod 12 extends into the threaded sleeve 13 and is connected with the threaded sleeve 13. The threaded sleeve 13 is used to increase the connection strength between the screw rod 12 and the rotating rod 9, prolonging the service life.

[0059] In the embodiment, the rotating rod 9 is further provided with a rotating handle at the upper end. The rotating handle is used to rotate the rotating rod 9 more labor-saving, improving the convenience of operation.

[0060] In the embodiment, there are three pull rods 2, which are arranged in an equidistant annular distribution. The pull claws on the three pull rods 2 simultaneously act on the rotor bottom surface, and the rotor bottom surface is more uniformly stressed.

[0061] Obviously, the above examples are only examples for clearly illustrating, but not limit the embodiments. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the scope of protection of the present application.

Claims

1. A de-rotating tool characterized by, The application relates to a tension rod device for a rotor, which comprises the following parts: a tension rod, the lower end of which is provided with a tension claw for transmitting axial tension to the bottom surface of a rotor; a support, the upper end of which is provided with a lifting mechanism for driving the lifting of the tension rod; the upper end of the tension rod is in sliding connection with the support and can rotate in the horizontal direction relative to the support to adjust the angle of the tension claw.

2. The de-rotator tool of claim 1, wherein, The support comprises a stand column and a movable plate, the upper end of the stand column is connected with a top plate, and the lower end of the stand column is connected with a bottom ring; the bottom ring is used for the circumferential positioning of the support; the movable plate is arranged between the top plate and the bottom ring and is connected with the top plate through the lifting mechanism; the tension rod is arranged in the bottom ring; the tension rod penetrates through the movable plate and the top plate and is in gap cooperation with the movable plate and the top plate respectively; the tension rod is provided with a bolt, and the movable plate is provided with a pin hole for clamping the bolt; the movable plate transmits axial tension to the tension rod through the bolt.

3. The de-rotating tool of claim 2, wherein, The movable plate is provided with two pin holes intersecting with each other.

4. The de-rotating tool of claim 2, wherein, The stand column is arranged in a ring shape along the bottom ring.

5. The de-rotating tool of claim 2, wherein, The end of the tension rod extending out of the top plate is provided with a pull ring.

6. The de-rotating tool of claim 2, wherein, The lifting mechanism comprises a screw rod, a rotating rod and a plane bearing; the screw rod penetrates through the top plate and the movable plate and is in gap cooperation with the top plate and the movable plate respectively; the upper end of the screw rod is in screw connection with the rotating rod, and the lower end of the screw rod transmits axial tension to the movable plate through a anti-falling stopper; the rotating rod is connected with the top plate through the plane bearing.

7. The de-rotating tool of claim 6, wherein, The screw rod is in screw connection with the rotating rod through a screw sleeve.

8. The de-rotating tool of claim 6, wherein, The upper end of the rotating rod is further provided with a rotating handle.

9. The de-rotating tool of claim 1, wherein, The tension rod device has three tension rods and is arranged in an equidistant ring shape.

10. The de-rotating tool of claim 1, wherein, The tension claw comprises a bending part and a contact part, the contact part is connected with the tension rod through the bending part, and the contact part is used for abutting against the bottom surface of the rotor.

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