CN220200647U

CN220200647U - Heavy motor stator grabbing mechanism

Info

Publication number: CN220200647U
Application number: CN202321869335.8U
Authority: CN
Inventors: 陈永飞; 黄浩; 陆梅玲; 杨志伟
Original assignee: Zhejiang Linix Motor Co Ltd
Current assignee: Zhejiang Linix Motor Co Ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2023-12-19
Anticipated expiration: 2033-07-17

Abstract

The utility model belongs to the technical field of motor processing, and particularly relates to a heavy motor stator grabbing mechanism, which comprises a top plate and a bottom plate, wherein a frustum and a wedge block are arranged between the top plate and the bottom plate, an abutting block which is in contact with a stator core is arranged on the outer side of the wedge block, the hardness of the abutting block is smaller than that of the wedge block, an inclined plane matched with the frustum is arranged on the inner side of the wedge block, a limit column is fixed on the top plate or the bottom plate, the wedge block is provided with a limit hole extending along the radial direction of the frustum, and the limit column is matched with the limit hole; the lower extreme of lifter passes roof and frustum fixed, and the upper end of lifter is connected with elevating system, makes the frustum reciprocate under elevating system's effect, makes wedge and support the piece radial motion outward in succession. The utility model has the advantages that the synchronous movement of the left clamping part and the right clamping part for clamping the stator casing assembly can be realized, and the situation that the clamped stator casing assembly is inclined or unstable is avoided.

Description

Heavy motor stator grabbing mechanism

Technical Field

The utility model belongs to the technical field of motor production and processing, and particularly relates to a heavy motor stator grabbing mechanism.

Background

The motor mainly comprises a stator and a rotor; the stator is a static part of the motor and consists of a stator core, a stator winding and a shell. The stator weight is heavier, need accomplish the snatching and transferring of stator through stator snatch mechanism in the motor assembly process.

The chinese patent with application number CN201921299339.0 discloses a stator grabbing mechanism, which comprises a housin, the middle part equidistance of shell side is encircleed and is offered the logical groove rather than the inner chamber intercommunication, and equal slidable in every logical inslot is connected with the wedge, is provided with first reset spring between the inner wall of wedge's top and bottom all and shell, and the wedge is located the inboard one end of shell and is provided with first inclined plane and second inclined plane, the top of shell inner chamber is installed one through the bolt, and the outside equidistance of a bottom surface leaves and is equipped with and equals and size and first inclined plane assorted first chute with wedge quantity.

In the scheme, the second cylinder driving part ascends to enable the wedge blocks to horizontally extend out so as to clamp and grab the stator. When the clamped stator is a stator of a heavy motor (for example, a servo high-power motor), the wedge blocks are required to have larger transverse acting force on the stator core so as to grab the stator; the wedge is the harder wear-resisting material generally, and the outside of wedge is direct to be contacted with stator core, and when the wedge was great to stator core's lateral effort, the wedge was scraped stator core easily or is extruded the deformation, led to the fact the damage to the stator, influences the use of product.

Disclosure of Invention

The utility model aims to provide a heavy motor stator grabbing mechanism which can grab a heavy motor stator and cannot damage a stator core.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a heavy motor stator snatchs mechanism, includes roof and the bottom plate that vertical relative interval set up, is equipped with the frustum that upper end is little, lower extreme is big between roof and bottom plate, be equipped with a plurality of wedge that uses the frustum as the annular even interval of center to set up between roof and the bottom plate, the wedge outside is equipped with the piece that supports that is used for with stator core contact, the hardness that supports the piece is less than the hardness of wedge, wedge inboard is equipped with the inclined plane with frustum matched with, roof or bottom plate are fixed with spacing post, the wedge is equipped with the spacing hole of radially extending along the frustum, spacing post and spacing hole cooperation are used for limiting the radial displacement volume of wedge; the lower extreme of lifter passes roof and frustum fixed, and the upper end of lifter is connected with elevating system, thereby drives the lifter and goes up and down to make the frustum reciprocate under elevating system's effect, makes the wedge radially outwards remove and causes the outer fringe protrusion of supporting the piece in the outer fringe of roof and stator work piece inner wall butt then.

When the stator grabbing mechanism of the heavy motor is used, the heavy motor stator grabbing mechanism stretches into the stator, then the lifting mechanism is started to lift the frustum, the frustum extrudes the wedge-shaped block to enable the wedge-shaped block to move outwards in the radial direction, the abutting block is enabled to expand radially to abut against the inner wall of the stator core, and therefore grabbing of the stator is completed. When the lifting rod of the lifting mechanism descends the frustum, the frustum does not squeeze the wedge-shaped block any more, namely, radial pressure does not exist between the abutting block and the inner wall of the stator core, the abutting block does not abut against the inner wall of the stator core any more, and the stator grabbing mechanism can extend out of the stator.

The inclined plane of the wedge block is matched with the inclined plane of the side surface of the frustum, and the thickness of the wedge block is gradually increased from bottom to top. Through setting up spacing hole and spacing post, the range that the wedge moved is spacing hole radial extension's distance, and when the wedge moved to the range, spacing post can support the wedge to the restriction wedge continued to move. The wedge-shaped block is subjected to heat treatment, the material is hard and wear-resistant, the hardness is high, the supporting block can be made of polyoxymethylene, copper and other materials, and compared with the wedge-shaped block, the supporting block is low in hardness, so that the supporting block cannot scrape Mao Dingzi iron cores, and products are protected. The transverse section of the frustum can be round or regular polygonal.

Preferably, a plurality of annular grooves are arranged on the outer side of each abutting block, and the annular grooves are arranged in parallel up and down.

The annular groove is arranged, so that the up-down friction force with the inner wall of the stator core can be increased, and the stator grabbing effect is better.

Preferably, each annular groove is surrounded by a shrink band, and each wedge-shaped block and the abutting block have inward folding trend under the action of the shrink band.

The rising of frustum makes the wedge expand to accomplish the snatching of stator, in order to be convenient for next stator snatch, can inwards fold wedge and support the piece through setting up the shrink area, thereby make stator snatch the mechanism and can get into next stator smoothly in. The contraction band can be an elastic band, and the elasticity of the contraction band is far smaller than the radial acting force of the frustum on the wedge-shaped block when the frustum rises.

Preferably, the limiting hole vertically penetrates through the whole wedge block, two ends of the limiting column are respectively fixed with the top plate and the bottom plate, and the top plate and the bottom plate are respectively provided with a first fixing hole for fixing the limiting column.

The spacing hole runs through in whole wedge, and is more convenient when the processing in spacing hole is manufactured, roof and bottom plate can pass first fixed orifices and spacing post thread tightening through the bolt for the installation of spacing post is more convenient.

Preferably, the bottom of the frustum is provided with a positioning part which extends vertically and downwards, and the width of the positioning part is the same as that of the bottom of the frustum; the lower end of the inclined plane of the wedge-shaped block is provided with a positioning surface matched with the outer edge of the positioning part, and the positioning surface is vertically arranged.

Because the inclined plane of the frustum and the inclined plane of the wedge block can not guarantee the smoothness of the inclined plane during processing, the inclined plane of the frustum and the inclined plane of the wedge block are likely to be in contact firstly due to the fact that the inclined plane is uneven, and line contact is difficult to occur when the side face of the positioning part is in contact with the positioning surface through the positioning part and the vertical positioning surface which are vertically downwards extended, so that the positioning effect is better.

Preferably, the bottom plate or the top plate is provided with partition pieces which are arranged at equal intervals and take the frustum as a center ring, the partition pieces are vertically arranged, each partition piece is positioned between two adjacent wedge-shaped blocks, the upper ends of the partition pieces are connected with the top plate, and the lower ends of the partition pieces are connected with the bottom plate.

By providing the dividing member, a plurality of wedge blocks can be spaced apart, thereby limiting the displacement path when the wedge blocks are expanded. And the dividing piece is connected with the top plate and the bottom plate, so that the distance between the bottom plate and the top plate is fixed. The dividing piece can be a vertical plate or a cylinder.

Preferably, the dividing piece is cylindrical, the dividing piece is located at the circumferential edges of the bottom plate and the top plate, and the top plate and the bottom plate are respectively provided with a second fixing hole for fixing the dividing piece.

The dividing piece is cylindrical, so that the dividing piece is in line contact with adjacent wedge blocks at two sides, and friction force between the dividing piece and the wedge blocks can be reduced; the cutting part is located at the circumferential edge of the bottom plate or the top plate and can be far away from the frustum, so that the cutting part is prevented from touching the frustum when the frustum is lifted, and the frustum is prevented from being lifted. The split pieces are convenient to fix and detach by arranging the second fixing holes.

Preferably, a supporting plate is arranged between the lifting mechanism and the top plate, the supporting plate is fixed with the bottom of the lifting mechanism, a plurality of supporting columns which are uniformly arranged at intervals are arranged between the supporting plate and the top plate, the supporting columns are vertically arranged, the upper ends of the supporting columns support the supporting plate, and the lower ends of the supporting columns support the top plate; the lifting rod of the lifting mechanism sequentially penetrates through the supporting plate and the top plate from top to bottom and is fixedly connected with the frustum.

Through the arrangement, the distance between the top plate and the lifting mechanism is fixed, so that the situation that the whole top plate and the bottom plate are pulled up together by the frustum when the lifting rod lifts the frustum is avoided, and the wedge block cannot be expanded so as not to grasp the stator is avoided.

Preferably, the outer side of the wedge-shaped block is detachably arranged with the abutting block.

The outer side of the wedge block and the abutting block can be detachably fixed in a threaded fit mode, and can be detachably fixed in a buckle connection mode; when the aperture of the stator core is larger or smaller, the abutting blocks can be detached from the wedge-shaped blocks, and the abutting blocks with different thicknesses are replaced, so that the stator core gripping device is suitable for stator core gripping with different apertures, and is quite convenient.

Preferably, the outer side surfaces of the wedge block and the abutting block are respectively provided with a plurality of notch grooves in one-to-one correspondence, the notch grooves of the wedge block and the abutting block are respectively provided with a plurality of threaded holes in one-to-one correspondence, and the threaded holes of the wedge block and the threaded holes of the abutting block face towards the frustum in the axial direction; the bolt sequentially passes through the threaded hole of the abutting block and the threaded hole of the wedge block, so that the detachable fixation between the abutting block and the wedge block is realized.

The notch groove of the wedge-shaped block is used for enabling the bolt head of the bolt to be positioned in the notch groove, so that the bolt head is prevented from touching the inner wall of the stator core, and the inner wall of the Mao Dingzi core is scraped; the notch groove of the wedge block is used for keeping a certain gap and preventing the deformation of the bolt caused by excessive tightening. The threaded holes of the abutting blocks penetrate radially, and the threaded holes of the wedge-shaped blocks are radial in axial direction but blind holes.

The utility model has the following advantages: the heavy motor stator can be grasped and the stator core is not damaged; different stators with larger aperture differences are adapted; the wedge-shaped block folding device is simple in structure and low in cost, and inward folding of the wedge-shaped block can be completed only through the contraction band.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic view of the structure of the present utility model with a block removed.

FIG. 3 is a schematic view of the structure of the present utility model with one of the abutment and wedge removed.

Fig. 4 is a transverse cross-sectional view of the present utility model.

Fig. 5 is a cross-sectional view of the present utility model when gripping a stator.

Reference numerals are a lifting mechanism 1, a lifting rod 2, a working plate 11, a supporting column 12, an adjusting rod 13, a guide rod 14, a joint 15, a cross plate 16, a support plate 3, a top plate 41, a first fixing hole 411, a second fixing hole 412, a bottom plate 42, a wedge block 51, a wedge block notch groove 511, a wedge block threaded hole 5111, a supporting block 52, a supporting block notch groove 521, a supporting block threaded hole 5211, an annular groove 522, a frustum 6, a positioning part 61, a dividing member 7, an inclined surface 8, a positioning surface 81, a limiting column 9, a limiting hole 91, a stator 100, and a stator core 101.

Detailed Description

The utility model is further described below with reference to the drawings and specific embodiments.

As shown in fig. 1 and 5, this embodiment discloses a heavy motor stator snatchs mechanism, including fixing the elevating system 1 on work board 11, work board 11 below is fixed with backup pad 3, and elevating system 1's lifter 2 passes work board 11 and backup pad 3 from top to bottom in proper order, is equipped with three in backup pad 3 below and takes lifter 2 as the annular even interval setting of center prop 12, and prop 12's upper end is fixed with backup pad 3, and prop 12's lower extreme is fixed with roof 41.

Two adjusting rods 13 are connected to both sides of the working plate 11, two guide rods 14 are connected to the working plate 11, a cross plate 16 is provided between the guide rods 14, and a joint 15 for connecting to a lifter other than the present utility model is provided to the cross plate 16. The adjusting rod 13, the guide rod 14, the joint 15 and the cross plate 16 are all structures except the structure of the novel type, and in order to realize the utility model, the stator can be lifted after the stator is grabbed. The left-right or front-back alignment positioning of the utility model when gripping the stator can be realized by arranging the adjusting rod 13. The lifter (not shown) connected with the joint 15 is connected to a sliding rail (not shown), so that the stator can be transferred after being grabbed.

As shown in fig. 1 to 4, a bottom plate 42 is arranged below a top plate 41, the top plate 41 and the bottom plate 42 are arranged at intervals up and down, a frustum 6 is arranged at the center between the top plate 41 and the bottom plate 42, the cross section of the frustum 6 is circular, the side surface of the frustum 6 is arc-shaped, the diameter of the frustum 6 is sequentially reduced from bottom to top, three partition pieces 7 which are uniformly arranged at intervals with the frustum 6 as a center ring are arranged between the top plate 41 and the bottom plate 42, the partition pieces 7 are cylindrical, three second fixing holes 412 corresponding to the partition pieces 7 are respectively arranged on the top plate 41 and the bottom plate 42, the upper ends of the partition pieces 7 are fixedly connected with the second fixing holes 412 (not shown in the drawing) of the top plate 41, and the lower ends of the partition pieces 7 are fixedly connected with the second fixing holes 412 (not shown in the drawing) of the bottom plate 42. The connection of the dividing element 7 to the top plate 41 and the bottom plate 42 forms a chamber which can accommodate the frustum 6 and the wedge 51.

As shown in fig. 2 to 4, the dividing pieces 7 are located at the circumferential edges of the bottom plate 42 and the top plate 41, a wedge block 51 is arranged between every two adjacent dividing pieces 7, the number of the wedge blocks 51 is three, the three wedge blocks 51 are evenly arranged at intervals in a ring shape with the frustum 6 as the center, the cross section of each wedge block 51 is in a sector shape, an abutting block 52 is connected to the outer side of each wedge block 51, and the wedge blocks 51 and the abutting blocks 52 are detachably arranged. The wedge-shaped block 51 is provided with an inclined plane 8 matched with the frustum 6, the inclined plane 8 is an arc surface, and the thickness of the wedge-shaped block 51 is sequentially increased from bottom to top. The bottom of the frustum 6 is provided with a vertical positioning part 61 extending downwards, the positioning part 61 is cylindrical, and the diameter of the positioning part 61 is the same as the diameter of the bottom of the frustum 6; the lower end of the inclined plane 8 of the wedge-shaped block 51 is provided with a positioning surface 81 matched with the outer edge of the positioning part 61, the positioning surface 81 is arc-shaped and vertically arranged, and the positioning surfaces 81 of the three wedge-shaped blocks 51 are enclosed to form a cylindrical cavity matched with the positioning part 61. Each wedge block is provided with a vertically penetrating limit hole 91, the limit holes 91 extend along the radial direction, vertically arranged limit posts 9 are arranged in the limit holes 91, the top plate 41 and the bottom plate 42 are provided with first fixing holes 411 for fixing the limit posts 9, the upper ends of the limit posts 9 are fixed with the first fixing holes 411 of the top plate 41, and the lower ends of the limit posts 9 are fixed with the first fixing holes 411 of the bottom plate 42 (not shown in the figure). Wherein the material of the abutment 52 is polyoxymethylene. The hardness of the abutment 52 is less than that of the wedge 51.

The contact surface of the abutting blocks 52 and the wedge-shaped blocks 51 is an arc surface, the outer side surfaces of the three abutting blocks 52 are enclosed to form a cylindrical surface, two annular grooves 522 are arranged on the outer side surface of each abutting block 52, the two annular grooves 522 are arranged in parallel up and down, a contraction band (not shown in the figure) is arranged in each annular groove 522, and the contraction band enables the three abutting blocks 52 to have inward folding trend. Wherein, the contraction band is an elastic band.

As shown in fig. 1, 2 and 4, four block notch grooves 521 distributed in a matrix are arranged on the outer side surface of each block 52, a block threaded hole 5211 is arranged in each block notch groove 521, and the block threaded hole 5211 radially penetrates through the whole block 52; four wedge gap grooves 511 distributed in a matrix are formed in the outer side face of each wedge 51, a wedge threaded hole 5111 is formed in each wedge gap groove 511, and the wedge threaded holes 5111 are blind holes and axially face towards the frustum 6. Bolts (not shown) sequentially pass through the abutting block threaded holes 5211 and the wedge block threaded holes 5111 from outside to inside to achieve detachable fixing of the abutting blocks 52 and the wedge blocks 51.

In use, an operator firstly adjusts the position of the stator grabbing mechanism through the adjusting rod 13 to enable the stator grabbing mechanism to be aligned with the stator core 101, and then descends the stator grabbing mechanism into the stator core 101 through a lifter except for the utility model; then, the lifting mechanism 1 is started, so that the lifting rod 2 starts to lift, the frustum 6 gradually lifts and presses the surrounding wedge-shaped blocks 51, and the wedge-shaped blocks 51 press the abutting blocks 52, so that the three abutting blocks 52 radially expand and abut against the inner wall of the stator core 101, and the grabbing of the stator 100 is realized.

After the stator 100 is grabbed, the stator 100 is transferred through the lifter and the sliding rail except for the stator 100, after the stator 100 is transferred, the lifting rod 2 of the lifting mechanism 1 descends, the frustum 6 begins to descend, the abutting block 52 is folded inwards under the action of the shrink belt, the abutting block 52 is not abutted against the inner wall of the stator core 102 any more, and the stator grabbing mechanism withdraws from the stator core 102 to grab the next stator 100.

Claims

1. The utility model provides a heavy motor stator snatchs mechanism which characterized in that: the stator core assembly comprises a top plate and a bottom plate which are vertically arranged at intervals relatively, wherein a frustum with a small upper end and a large lower end is arranged between the top plate and the bottom plate, a plurality of wedge blocks which are annularly and uniformly arranged at intervals by taking the frustum as a center are arranged between the top plate and the bottom plate, the outer sides of the wedge blocks are provided with abutting blocks which are used for being contacted with a stator core, the hardness of the abutting blocks is smaller than that of the wedge blocks, the inner sides of the wedge blocks are provided with inclined surfaces matched with the frustum, the top plate or the bottom plate is fixedly provided with a limit column, the wedge blocks are provided with limit holes which extend along the radial direction of the frustum, and the limit column is matched with the limit holes to limit the radial displacement of the wedge blocks; the lower extreme of lifter passes roof and frustum fixed, and the upper end of lifter is connected with elevating system, thereby drives the lifter and goes up and down to make the frustum reciprocate under elevating system's effect, makes the wedge radially outwards remove and causes the outer fringe protrusion of supporting the piece in the outer fringe of roof and stator work piece inner wall butt then.

2. The heavy duty motor stator grasping mechanism according to claim 1, wherein: the outer side of each supporting block is provided with a plurality of annular grooves, and the annular grooves are arranged in parallel up and down.

3. The heavy duty motor stator grasping mechanism according to claim 2, wherein: each annular groove is internally surrounded by a shrink band, and each wedge-shaped block and the abutting block have inward folding trend under the action of the shrink band.

4. A heavy duty motor stator grasping mechanism according to claim 1 or 2 or 3, wherein: the limiting holes vertically penetrate through the whole wedge block, two ends of the limiting column are respectively fixed with the top plate and the bottom plate, and the top plate and the bottom plate are respectively provided with first fixing holes for fixing the limiting column.

5. A heavy duty motor stator grasping mechanism according to claim 1 or 2 or 3, wherein: the bottom of the frustum is provided with a vertical positioning part extending downwards, and the width of the positioning part is the same as that of the bottom of the frustum; the lower end of the inclined plane of the wedge-shaped block is provided with a positioning surface matched with the outer edge of the positioning part, and the positioning surface is vertically arranged.

6. A heavy duty motor stator grasping mechanism according to claim 1 or 2 or 3, wherein: the split type wedge-shaped plate is characterized in that split pieces which are annularly and uniformly arranged at intervals by taking the frustum as a center are arranged on the bottom plate or the top plate, the split pieces are vertically arranged, each split piece is located between two adjacent wedge-shaped blocks, the upper ends of the split pieces are connected with the top plate, and the lower ends of the split pieces are connected with the bottom plate.

7. The heavy duty motor stator grasping mechanism of claim 6, wherein: the dividing piece is cylindric, the dividing piece is located the peripheral edge department of bottom plate and roof, roof and bottom plate all are equipped with the second fixed orifices that is used for fixed dividing piece.

8. A heavy duty motor stator grasping mechanism according to claim 1 or 2 or 3, wherein: a supporting plate is arranged between the lifting mechanism and the top plate, the supporting plate is fixed with the bottom of the lifting mechanism, a plurality of supporting columns which are uniformly arranged at intervals are arranged between the supporting plate and the top plate, the supporting columns are vertically arranged, the upper ends of the supporting columns support the supporting plate, and the lower ends of the supporting columns support the top plate; the lifting rod of the lifting mechanism sequentially penetrates through the supporting plate and the top plate from top to bottom and is fixedly connected with the frustum.

9. A heavy duty motor stator grasping mechanism according to claim 1 or 2 or 3, wherein: the outer side of the wedge-shaped block is detachably arranged with the abutting block.

10. The heavy duty motor stator grasping mechanism of claim 9, wherein: the outer side surfaces of the wedge block and the abutting block are respectively provided with a plurality of notch grooves in one-to-one correspondence, a plurality of threaded holes in one-to-one correspondence are respectively arranged in the notch grooves of the wedge block and the abutting block, and the axial directions of the threaded holes of the wedge block and the threaded holes of the abutting block face towards the frustum; the bolt sequentially passes through the threaded hole of the abutting block and the threaded hole of the wedge block, so that the detachable fixation between the abutting block and the wedge block is realized.