CN107867627A - Stator core stone tongs - Google Patents

Abstract

The invention provides a kind of stator core stone tongs, belong to field of mechanical technique.It solves the problems, such as that requirement of the existing stator hoisting application specific architecture to stator core is high and structure is complex.This stator core stone tongs, including the upending frame in gantry shape, upending frame includes crossbeam, the lower vertical at the both ends of crossbeam is provided with support bar, set on the inside of support bar by hanging rest shoe, lift that the section of block is curved, the lower end of at least one of which support bar is axially fixed with horizontally disposed screw rod bushing, screw rod bushing internal thread is connected with screw mandrel, hangs rest shoe and is connected with corresponding described screw mandrel.This stator core stone tongs has the advantages of easy to use and structure is relatively simple.

Description

Stator core lifting fixture

technical field

The invention belongs to the technical field of machinery, and relates to a hoisting fixture, in particular to a stator iron core hoisting fixture.

Background technique

At present, in the process of transporting, pressing and assembling the stators of medium and large motors in motor manufacturers, ropes are generally used to bind the outer circle of the stators, and the stator cores are lifted by lifting equipment to move and place the stator cores where they are needed. When lifting and transporting the stators due to The object is unbalanced, the iron core is inclined, the center of gravity is unstable, and it is often necessary to manually hold the stator. If you do not pay attention, it is easy to cause the object to slide down and hurt people. This method is cumbersome and labor-intensive. We design a simple, feasible, safe Reliable motor stator lifting and handling device.

For example, a generator stator hoisting special structure disclosed in Chinese patent literature (application number: 201320866721.1), including a hook, a main beam, two pole beams, four sets of support beams, four suspension beams and four sets of hydraulic pressure Lifting device; four sets of supporting beams are respectively installed on the trolley rails of the main beam of the vehicle, and each set of supporting beams is equipped with a hanging beam, and four sets of hydraulic lifting devices are respectively installed at the lower ends of the four hanging beams through pin connections; Below every two sets of hydraulic lifting devices, a pole beam is hoisted through the steel strand, the lower anchor hanger and the bearing pin. A main beam is installed between the two pole beams, and the hook is installed in the middle of the lower surface of the main beam. However, the special structure for hoisting the generator stator has high requirements on the stator core and the structure is relatively complicated.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the existing technology, and propose a stator core lifting fixture that is easy to use and relatively simple in structure.

The purpose of the present invention can be achieved through the following technical solutions: the stator core hoisting fixture includes a gantry-shaped lifting frame, the lifting frame includes a beam, and the lower sides of the two ends of the beam are vertically provided with support rods, which It is characterized in that the inner side of the support rod is provided with a lifting claw block, the section of the lifting block is arc-shaped, at least one of the lower ends of the support rod is axially fixed with a horizontal screw sleeve, so The screw sleeve is internally threaded with a screw, and the hanging claw block is connected with the corresponding screw.

When working, move the lifting frame so that the stator core is located between the two hanging claw blocks, and by turning the screw sleeve, the screw drives the hanging claw block to move in translation so that the two hanging claw blocks are attached to the outer wall of the stator core and clamped The stator core is driven by the lifting and moving of the lifting frame to carry the stator core, which has the advantages of convenient use and relatively simple structure.

In the above stator core hoisting jig, the lower ends of the two support rods are axially fixed with horizontal screw sleeves, and the screw sleeves are screwed with screw rods. The inner ends of the screw rods are connected with symmetrically arranged hanging claw blocks. The axial movement of the lead screw is driven by rotating the lead screw sleeve to realize the translation of the hanging claw block, which has the advantages of simple structure and relatively convenient use.

In the above jig for hoisting the stator core, the lower end of the support rod is fixedly connected with a horizontal support sleeve, and the screw sleeve is inserted into the support sleeve. The screw sleeve is inserted into the support sleeve, which has a good positioning effect on the screw sleeve.

In the above stator core hoisting jig, the outer wall of one end of the screw sleeve is provided with an annular protrusion, and the annular protrusion abuts against the inner end surface of the support sleeve, and the wire The other end of the rod sleeve is fixedly connected with a coaxial handle sleeve, and the inner end surface of the handle sleeve is against the outer end surface of the support sleeve. With the above arrangement, the screw sleeve is axially fixedly connected to the support sleeve, which has the advantages of better positioning effect and relatively simple structure.

In the above fixture for hoisting the stator core, a rubber pad with an arc-shaped side section is fixedly connected to the inner wall of the hanging claw block, and the rubber pad is laid on the inner wall of the hanging claw block. By setting the rubber pad, the frictional force is increased, and at the same time, the stator core is protected to a certain extent.

In the above fixture for hoisting the stator core, the rubber pad is fixedly connected to the hanging claw block through countersunk screws. The rubber pad is fixedly connected to the hanging claw block through the countersunk head screw, which has the advantage of better connection effect.

In the above fixture for hoisting the stator core, the thread of the screw rod is a T-shaped thread. The thread of the screw rod is T-shaped thread, so that the screw rod has a self-locking function to ensure that it will not loosen during the hoisting process, and has the advantages of safe and reliable use.

In the above stator core hoisting jig, the beam includes hollow beam 1 and beam 2, and one end of beam 2 is inserted into the cavity of beam 1, and beam 1 and beam 2 are provided with There is a row of corresponding connecting holes, and positioning pins are pierced in the connecting holes, and the positioning pins pass through the connecting holes corresponding to the first beam and the second beam. One end of the beam 2 is inserted into the cavity of the beam 1, and inserted into the corresponding connecting hole through the positioning pin to realize the fixing of the beam 1 and the beam 2. Since the beam 1 and the beam 2 are provided with a row of connecting holes, it is convenient to adjust the relative position of the beam 1. The position of the second beam ensures that the width of the hoisting frame is suitable, reduces the protruding length and stress of the screw rod, and improves the service life.

In the above fixture for hoisting the stator core, lifting rings are provided on both sides of the upper end of the beam. Both sides of the upper end of the beam are provided with suspension rings, so that the force of the lifting frame is relatively balanced, so that the lifting frame can be hoisted smoothly.

In the above jig for hoisting the stator core, the cross-section of the beam is rectangular. The cross-section of the beam is rectangular, which has the advantages of high strength and not easy to deform.

Compared with the prior art, the stator core hoisting fixture has the following advantages:

1. By turning the screw sleeve, the screw drives the lifting claw block to move in translation so that the two hanging claw blocks are attached to the outer wall of the stator core and clamp the stator core. Through the lifting and moving of the lifting frame, the stator core is driven Handling, with the advantages of convenient use and relatively simple structure;

2. The axial movement of the screw is driven by rotating the screw sleeve to realize the translation of the lifting claw block, which has the advantages of simple structure and convenient use;

3. By setting the rubber pad, the friction force is increased, and at the same time, it has a certain protective effect on the stator core;

4. Since the first beam and the second beam are provided with a row of connection holes, it is convenient to adjust the position of the first beam relative to the second beam, which ensures the appropriate width of the lifting frame, reduces the extension length and stress of the screw rod, and improves the service life.

Description of drawings

Fig. 1 is a working diagram of the stator core hoisting jig.

FIG. 2 is a partially enlarged schematic diagram of A in FIG. 1 .

In the figure, 1. lifting frame; 2. beam; 2a, beam one; 2b, beam two; 3. support rod; 4. hanging claw block; 5. screw sleeve; 7. Support sleeve; 8. Handle cover; 9. Rubber pad; 10. Locating pin; 11. Lifting ring; 12. Stator core.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figures 1 and 2, the stator core hoisting jig includes a gantry-shaped lifting frame 1, the lifting frame 1 includes a beam 2, the cross-section of the beam 2 is rectangular and both sides of the upper end of the beam 2 are provided with lifting rings 11. The lower sides of the two ends of the crossbeam 2 are vertically provided with a support rod 3, and the lower end of the support rod 3 is fixedly connected with a support sleeve 7 arranged horizontally. Screw mandrel 6, the screw thread of screw mandrel 6 is T-shaped thread, makes screw mandrel 6 have self-locking function, guarantees not to loosen in hoisting process, has the advantage of safe and reliable use. The inner ends of the screw mandrels 6 are axially fixedly connected with the hanging claw blocks 4, the cross section of the lifting block is arc-shaped, and the inner ends of the two screw mandrels 6 are connected with the hanging claw blocks 4 arranged symmetrically.

The inner side wall of the hanging claw block 4 is fixedly connected with a rubber pad 9 with an arc-shaped cross-section. The rubber pad 9 is laid on the inner side wall of the hanging claw block 4 and the rubber pad 9 is fixed to the hanging claw block 4 through countersunk screws. even.

The outer wall of one end of the screw sleeve 5 is provided with an annular convex body 5a, and the annular convex body 5a abuts against the inner end surface of the support sleeve 7, and the other end of the screw sleeve 5 is fixedly connected with a coaxially arranged handle sleeve 8, the handle The inner end surface of the sleeve 8 abuts against the outer end surface of the support sleeve 7, so that the screw sleeve 5 is axially fixed on the support sleeve 7, which has the advantages of good positioning effect and relatively simple structure.

Beam 2 includes hollow beam one 2a and beam two 2b, one end of beam two 2b is inserted into the cavity of beam one 2a, and beam one 2a and beam two 2b are provided with a row of corresponding connecting holes, and the connecting holes penetrate A positioning pin 10 is provided, and the positioning pin 10 passes through the connecting hole corresponding to the first beam 2a and the second beam 2b.

When working, move the lifting frame 1 so that the stator core 12 is located between the two hanging claw blocks 4, and rotate the screw rod sleeve 5 to make the screw rod 6 drive the hanging claw block 4 to move in translation so that the two hanging claw blocks 4 are attached to the stator iron The outer wall of the core 12 clamps the stator core 12 . According to needs, turn the screw mandrel sleeve 5 to make the stator core be in a vertical position or a horizontal position, and the lifting and moving of the lifting frame 1 will drive the transportation of the stator core 12, which has the advantages of convenient use and relatively simple structure. The translational movement of the hanging claw block 4 is realized by rotating the screw sleeve 5 to drive the axial movement of the screw, which has the advantages of simple structure and relatively convenient use. By setting the rubber pad 9, the friction force is increased, and at the same time, the stator core 12 has a certain protective effect. Both sides of the upper end of the crossbeam 2 are provided with suspension rings 11, so that the stress on the lifting frame 1 is relatively balanced, so that the lifting frame 1 can be hoisted smoothly.

One end of beam two 2b is inserted into the cavity of beam one 2a, and inserted into the corresponding connection hole through positioning pin 10, so that beam one 2a and beam two 2b are fixed, since beam one 2a and beam two 2b are provided with a row of connections The hole is convenient for adjusting the position of crossbeam one 2a relative to crossbeam two 2b, which ensures that the width of the lifting frame 1 is suitable, reduces the protruding length and stress of the screw mandrel 6, and improves the service life.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although this paper uses more lifting frame 1, beam 2, beam one 2a, beam two 2b, support rod 3, hanging claw block 4, screw sleeve 5, annular convex body 5a, screw rod 6, support sleeve 7, handle Cover 8, rubber pad 9, positioning pin 10, lifting ring 11, stator core 12 and other terms, but the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (10)

1. Stator core hoisting fixture, including a gantry-shaped lifting frame (1), the lifting frame (1) includes a beam (2), and the lower sides of the two ends of the beam (2) are vertically provided with support rods (3), it is characterized in that the inner side of the support rod (3) is provided with a lifting claw block (4), the section of the lifting block is arc-shaped, at least one of the support rods (3) The lower end is axially fixed with a screw sleeve (5) arranged horizontally, and the screw sleeve (5) is internally threaded with a screw rod (6), and the hanging claw block (4) is connected with the corresponding screw sleeve (5). Rod (6) links to each other. 2. The stator core hoisting fixture according to claim 1, characterized in that, the lower ends of the two support rods (3) are axially fixedly connected with horizontal screw sleeves (5), and the The screw mandrel sleeves (5) are all threadedly connected with screw mandrels (6), and the inner ends of the two described screw mandrels (6) are all connected with symmetrically arranged hanging claw blocks (4). 3. The stator core hoisting fixture according to claim 1 or 2, characterized in that, the lower end of the support rod (3) is fixedly connected with a horizontally arranged support sleeve (7), and the screw sleeve ( 5) Insert it into the support sleeve (7). 4. The stator core hoisting fixture according to claim 3, characterized in that, the outer wall of one end of the screw mandrel sleeve (5) is provided with an annular convex body (5a), and the annular convex body (5a ) against the inner end surface of the support sleeve (7), the other end of the screw sleeve (5) is fixedly connected with a coaxial handle sleeve (8), and the handle sleeve (8) The inner end surface of the support sleeve (7) is abutted against the outer end surface of the support sleeve (7). 5. The stator core hoisting jig according to claim 1 or 2, characterized in that, the inner side wall of the hanging claw block (4) is fixedly connected with a rubber pad (9) with an arc-shaped side section, and the The rubber pad (9) is laid on the inner wall of the hanging claw block (4). 6. The jig for hoisting the stator core according to claim 5, characterized in that, the rubber pad (9) is fixedly connected to the hanging claw block (4) through countersunk screws. 7. The stator core hoisting jig according to claim 1 or 2, characterized in that, the thread of the screw rod (6) is a T-shaped thread. 8. The stator core hoisting fixture according to claim 1 or 2, characterized in that, the beam (2) includes a hollow beam one (2a) and a beam two (2b) and the beam two (2b ) is inserted into the cavity of the beam one (2a), and the beam one (2a) and the beam two (2b) are provided with a row of corresponding connecting holes, and the connecting holes are pierced with positioning Pin (10), the positioning pin (10) passes through the connecting hole corresponding to beam one (2a) and beam two (2a). 9. The stator core hoisting jig according to claim 1 or 2, characterized in that, both sides of the upper end of the beam (2) are provided with lifting rings (11). 10. The stator core hoisting jig according to claim 1 or 2, characterized in that the cross-section of the beam (2) is rectangular.