CN206894453U - Rotor core is segmented Prepressing working - Google Patents
Rotor core is segmented Prepressing working Download PDFInfo
- Publication number
- CN206894453U CN206894453U CN201720617502.8U CN201720617502U CN206894453U CN 206894453 U CN206894453 U CN 206894453U CN 201720617502 U CN201720617502 U CN 201720617502U CN 206894453 U CN206894453 U CN 206894453U
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- China
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- intermediate press
- press plate
- stretching screw
- cushion block
- shaped cushion
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Abstract
The utility model provides a kind of rotor core segmentation Prepressing working, the frock can be in the case where without using four post hydraulic presses and infrequently using driving, efficiently realize segmentation precompressed to rotor core, with ensure each stepping length of iron core be in technological requirement within the scope of, core ventilation ditch offset deviation is within the scope of technological requirement.It includes bottom plate, intermediate press plate, guide pillar guide sleeve structure, hydraulic jack, mandrel, top board, stretching screw, U-shaped cushion block；Hydraulic jack is arranged between bottom plate and intermediate press plate；Stretching screw bottom is arranged on bottom plate, through intermediate press plate and is upwardly extended；Thrust annular groove is provided with stretching screw, the A/F of U-shaped cushion block is less than the external diameter of stretching screw, but not less than the trench bottom external diameter of thrust annular groove；Mandrel is fixed on intermediate press plate top, and top board is located at U-shaped cushion block bottom；When hydraulic jack acts, promotion intermediate press plate etc. is moved relative to U-shaped cushion block upwards, and core stamping is compacted.
Description
Technical field
The utility model is related to wind-driven generator assembling field, there is provided a kind of rotor core is segmented Prepressing working, for
During punching core lamination stack, precompressed is carried out to the part iron core folded, to ensure that each stepping length of iron core is in technique
Within the scope of it is required that, core ventilation ditch offset deviation is within the scope of technological requirement.
Background technology
If a typhoon power generator rotor core includes some grades of identical rotor punchings and dry plate ventilation channel plate.Rotor rushes
For piece with after ventilation channel plate closed assembly, forming rotor core air duct, it provides passage, rotor core ventilation for generator air cooling system
Radiating of the position of ditch to generator has a significant impact.
Shown in Figure 1, core stamping 1 is hollow thin slice flange arrangement.
Again shown in Figure 2, rotor core ventilation channel plate 2 be hollow flange arrangement, uniform spot welding tooth pressure in circumferential teeth
Piece 21, frid form a part with slotted vane.
It is again shown in Figure 3, if dry plate core stamping 1 tires out poststack and forms rotor punching iron core 3, some sections of punching iron cores 3
Tire out poststack with ventilation channel plate 2, form the air duct 41 that several in rotor core 4 are used to radiate.
After the completion of follow-up motor general assembly operation, neater, the heat friendship of stator core air duct and rotor core air duct pair
It is better to change effect.
In the prior art, wind power generator rotor iron core segmentation preloading method mainly has two kinds, and one kind is using four posts oil
Press implements segmentation precompressed to iron core；Another kind is the stretching screw using a variety of different length specifications, utilizes hollow jack
Compress iron core.Two methods described above can guarantee that iron core laminated quality, but have following defect：
First, there is following defect using first method：
1st, four price of post hydraulic press itself and installation cost are of a relatively high；
2nd, position is fixed after the installation of four post hydraulic presses, it is impossible to mobile；
3rd, it is bigger to take hall space for four post hydraulic presses.
2nd, there is following defect using second method：
1st, stretching screw specification is more；
2nd, need to be frequently relatively low using driving lifting and disassembling fixture top board, production efficiency during precompressed.
Therefore, prior art is used, though can guarantee that product quality, also there are many limitations.
The content of the invention
The purpose of this utility model is to provide a kind of rotor core segmentation Prepressing working, and the frock can be without using four posts
In the case of hydraulic press and infrequently use driving, the segmentation precompressed to rotor core is efficiently realized, to ensure each point of iron core
Shelves length be in technological requirement within the scope of, core ventilation ditch offset deviation is within the scope of technological requirement.
The purpose of this utility model is to be achieved through the following technical solutions：
Rotor core described in the utility model is segmented Prepressing working, including bottom plate, intermediate press plate, guide pillar guide sleeve structure,
Hydraulic jack, mandrel, top board, stretching screw, U-shaped cushion block；Intermediate press plate by guide pillar guide sleeve structure movably up/down
It is arranged on bottom plate, the hydraulic jack for driving intermediate press plate to move up and down is arranged between bottom plate and intermediate press plate；Draw
Tight screw rod bottom is arranged on bottom plate, through intermediate press plate and is upwardly extended；Being provided with stretching screw can be along stretching screw
Radial direction be put into the thrust annular groove of U-shaped cushion block, the A/F of U-shaped cushion block is less than the external diameter of stretching screw, but is not less than thrust
The trench bottom external diameter of annular groove；Mandrel is fixed on intermediate press plate top, and top board is located at U-shaped cushion block bottom；When hydraulic jack pushes
Make, promote intermediate press plate, positioned at be sleeved on mandrel periphery and core stamping between intermediate press plate and top board, mandrel,
Top board is moved relative to U-shaped cushion block upwards, and when top board contacts with U-shaped cushion block, core stamping is compacted.
Above-mentioned rotor core segmentation Prepressing working, sets multiple thrust annular grooves on stretching screw.
Above-mentioned rotor core segmentation Prepressing working, hydraulic jack, stretching screw, guide pillar guide sleeve structure respectively have three with
On, it is distributed on the circumference of mandrel.
Above-mentioned rotor core segmentation Prepressing working, the fixed central spindle on intermediate press plate top fixation lower clamping ring, lower clamping ring.
Above-mentioned rotor core segmentation Prepressing working, dovetail groove is provided with the periphery of bottom plate, and the bottom of stretching screw is set
There are the terraced steps corresponding with dovetail groove；Stretching screw can take out out of dovetail groove.
The beneficial effects of the utility model：
When iron core is stacked to the length of technological requirement, top board is placed above core stamping, then loads onto several tensions
Screw rod and U-shaped cushion block；The root of U-shaped cushion block is located in thrust annular groove, and the bottom of U-shaped cushion block is top board；Start hydraulic pump, by
Hydraulic jack provides and pushes up power, promotes intermediate press plate to move up, when top board touches U-shaped cushion block, iron core starts to press
Tightly；Jack continues to press, and intermediate press plate stops moving up after reaching setting pressure, and now iron core reaches the pretension of technological requirement
Power.
After iron core is compressed by precompressed, each stepping length of iron core, and the position of air duct are measured using measurer, is such as found
Size does not meet technological requirement, can unload U-shaped cushion block, top board in time, is adjusted by increasing and decreasing punching；Iron core after precompressed,
Evenly, length variation is smaller for stress everywhere.
For punching iron core, remaining each section precompressed is identical with aforesaid operations.
The rotor core is segmented Prepressing working, can carry out precompressed to iron core during punching core lamination stack, ensure iron
Each stepping length of core be in technological requirement within the scope of, core ventilation ditch offset deviation within the scope of technological requirement, should
Frock preparation structure is simple, and cost is cheap, simple to operate.
Brief description of the drawings
Fig. 1 is the structural representation of core stamping
Fig. 2 is the structural representation of core ventilation frid
Fig. 3 is the structural representation of punching iron core
Fig. 4 is the structural representation of rotor core
Fig. 5 is the schematic diagram to rotor core precompressed using rotor core segmentation Prepressing working
Fig. 6 is the schematic diagram of iron core segmentation Prepressing working
Fig. 7 is another schematic diagram of iron core segmentation Prepressing working.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail：
Prepressing working is segmented referring to the rotor core shown in Fig. 5-7, it includes guide pillar 5, bottom plate 6, jack 7, intermediate pressure
Plate 8, lower clamping ring 9, U-shaped cushion block 10, stretching screw 11, mandrel 12, top board 13, guide pin bushing 14 etc..
Three groups of guide pillar guide sleeve structures that intermediate press plate is made up of guide pillar, guide pin bushing are movably up/down arranged on bottom plate,
Three hydraulic jacks for driving intermediate press plate to move up and down are arranged between bottom plate and intermediate press plate；In the outer of bottom plate 6
Zhou Kaiyou dovetail grooves 61, the bottom of stretching screw are provided with the terraced steps corresponding with dovetail groove；Stretching screw can be from ladder
Taken out in shape groove.
Uniformly 6 stretching screw bottoms circumferentially are arranged on bottom plate, are prolonged through intermediate press plate, lower clamping ring and upwards
Stretch；Multiple thrust annular grooves 111 that U-shaped cushion block can be put into along the radial direction of stretching screw, U-shaped cushion block are provided with each stretching screw
A/F be substantially equal to the trench bottom external diameter of thrust annular groove.Top board is located at U-shaped cushion block bottom；When hydraulic jack pushes
Make, promote intermediate press plate, be sleeved on mandrel periphery and core stamping, mandrel, top board between lower clamping ring and top board
Moved upwards relative to U-shaped cushion block, when top board contacts with U-shaped cushion block, core stamping is compacted.
Lower clamping ring 9 is placed on intermediate press plate 8, makes lower clamping ring 9 and intermediate press plate 8 concentric；The lower end of mandrel 12, which is fixed on, to be pushed
In the counterbore of the central part of circle.With inner die（Mandrel）12 positioning, stack core stamping, when the lamination of punching iron core 3 to technique will
During the length asked, top board 13 is placed above core stamping；Six roots of sensation stretching screw 11 is installed；It is corresponding in every stretching screw
U-shaped cushion block 10 is installed at bayonet socket；Start hydraulic pump, three hydraulic jacks 7 being arranged between bottom plate 6 and intermediate press plate 8 will
Intermediate press plate 8 jacks up upwards, and when top board 13 touches U-shaped cushion block 10, iron core starts to compress；Jack 7 continues to press, and reaches
Intermediate press plate 8 stops moving up after to setting pressure, and now iron core reaches the pretightning force of technological requirement.The guide pillar being fixed on bottom plate
5 coordinate with the guide pin bushing 14 on fixed intermediate press plate 8, and guide effect is played in the movement to intermediate press plate 8.
The beneficial effects of the utility model are：
The rotor core is segmented Prepressing working, can carry out precompressed to iron core during punching core lamination stack, ensure iron
Each stepping length of core be in technological requirement within the scope of, core ventilation ditch offset deviation is within the scope of technological requirement.
Claims (5)
1. rotor core is segmented Prepressing working, it is characterized in that：It includes bottom plate, intermediate press plate, guide pillar guide sleeve structure, hydraulic jack
Top, mandrel, top board, stretching screw, U-shaped cushion block；Intermediate press plate is movably up/down arranged on bottom by guide pillar guide sleeve structure
On plate, the hydraulic jack for driving intermediate press plate to move up and down is arranged between bottom plate and intermediate press plate；Stretching screw bottom
Portion is arranged on bottom plate, through intermediate press plate and is upwardly extended；Being provided with stretching screw can put along the radial direction of stretching screw
Entering the thrust annular groove of U-shaped cushion block, the A/F of U-shaped cushion block is less than the external diameter of stretching screw, but not less than the groove of thrust annular groove
Bottom external diameter；Mandrel is fixed on intermediate press plate top, and top board is located at U-shaped cushion block bottom；When hydraulic jack act, in promotion
Between pressing plate, positioned at be sleeved on mandrel periphery and core stamping between intermediate press plate and top board, mandrel, top board to
On relative to U-shaped cushion block move, when top board contacts with U-shaped cushion block, core stamping is compacted.
2. rotor core as claimed in claim 1 is segmented Prepressing working, it is characterized in that：Multiple thrusts are set on stretching screw
Annular groove.
3. rotor core as claimed in claim 1 is segmented Prepressing working, it is characterized in that：Hydraulic jack, stretching screw, guide pillar
Guide sleeve structure respectively has more than three, is distributed on the circumference of mandrel.
4. rotor core as claimed in claim 1 is segmented Prepressing working, it is characterized in that：Fix and push on intermediate press plate top
Enclose, fixed central spindle on lower clamping ring.
5. rotor core as claimed in claim 1 is segmented Prepressing working, it is characterized in that：Dovetail groove is provided with the periphery of bottom plate,
The bottom of stretching screw is provided with the terraced steps corresponding with dovetail groove；Stretching screw can take out out of dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617502.8U CN206894453U (en) | 2017-05-27 | 2017-05-27 | Rotor core is segmented Prepressing working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617502.8U CN206894453U (en) | 2017-05-27 | 2017-05-27 | Rotor core is segmented Prepressing working |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206894453U true CN206894453U (en) | 2018-01-16 |
Family
ID=61320849
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720617502.8U Active CN206894453U (en) | 2017-05-27 | 2017-05-27 | Rotor core is segmented Prepressing working |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120120A (en) * | 2018-10-30 | 2019-01-01 | 永济优耐特绝缘材料有限责任公司 | A kind of rotor magnetic pole box laminates moulding process |
| CN110460206A (en) * | 2019-08-12 | 2019-11-15 | 江苏中车电机有限公司 | A kind of electric machine stator iron Prepressing working |
| CN112498944A (en) * | 2020-11-30 | 2021-03-16 | 南京汽轮电机(集团)有限责任公司 | Gas turbine rotor disk stacking device |
| CN113369393A (en) * | 2021-06-16 | 2021-09-10 | 常州神力电机股份有限公司 | Lamination forming tool and lamination forming method for stator core of wind driven generator |
| CN114160973A (en) * | 2021-11-09 | 2022-03-11 | 东阳市联宜机电有限公司 | Rotor core laser welding equipment |
-
2017
- 2017-05-27 CN CN201720617502.8U patent/CN206894453U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120120A (en) * | 2018-10-30 | 2019-01-01 | 永济优耐特绝缘材料有限责任公司 | A kind of rotor magnetic pole box laminates moulding process |
| CN109120120B (en) * | 2018-10-30 | 2023-08-25 | 永济优耐特绝缘材料有限责任公司 | Lamination forming process for rotor magnetic pole box |
| CN110460206A (en) * | 2019-08-12 | 2019-11-15 | 江苏中车电机有限公司 | A kind of electric machine stator iron Prepressing working |
| CN112498944A (en) * | 2020-11-30 | 2021-03-16 | 南京汽轮电机(集团)有限责任公司 | Gas turbine rotor disk stacking device |
| CN113369393A (en) * | 2021-06-16 | 2021-09-10 | 常州神力电机股份有限公司 | Lamination forming tool and lamination forming method for stator core of wind driven generator |
| CN113369393B (en) * | 2021-06-16 | 2023-01-24 | 常州神力电机股份有限公司 | Lamination forming tool and lamination forming method for stator core of wind driven generator |
| CN114160973A (en) * | 2021-11-09 | 2022-03-11 | 东阳市联宜机电有限公司 | Rotor core laser welding equipment |
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