CN208353166U - A kind of coiled strip stick in motor slot wedge mould pressing process - Google Patents
A kind of coiled strip stick in motor slot wedge mould pressing process Download PDFInfo
- Publication number
- CN208353166U CN208353166U CN201821093261.2U CN201821093261U CN208353166U CN 208353166 U CN208353166 U CN 208353166U CN 201821093261 U CN201821093261 U CN 201821093261U CN 208353166 U CN208353166 U CN 208353166U
- Authority
- CN
- China
- Prior art keywords
- coiled strip
- slot wedge
- motor slot
- stick
- strip stick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 title claims abstract description 18
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 abstract description 16
- 239000011347 resin Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000011505 plaster Substances 0.000 description 8
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 7
- 229920003192 poly(bis maleimide) Polymers 0.000 description 7
- 238000007731 hot pressing Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model discloses the coiled strip stick in a kind of motor slot wedge mould pressing process, including cylindric coiled strip stick ontology, the diameter of phi of coiled strip stick ontologyStickMeet formula:Wherein, ΦsFor the circular diameter being converted by motor slot wedge perimeter of section；One end of coiled strip stick ontology opens up the groove for clamping sized glass cloth；Handle is connected on coiled strip stick ontology.The utility model can quickly determine the optimum diameter of coiled strip stick, high production efficiency, be molded that prepared motor slot wedge apparent mass is good, and surface is without groove, fold or resin side, high mechanical strength.
Description
Technical field
The utility model belongs to motor slot wedge mould pressing process technical field, in particular in a kind of motor slot wedge mould pressing process
Coiled strip stick.
Background technique
With the continuous development of China's electric locomotive cause, the performance of locomotive traction motor is higher and higher, thus to traction
The requirement of motor insulating products is also higher and higher.Important component of the motor slot wedge as fixed traction electrical-coil, except requirement tool
Have outside corresponding insulation grade anti-corrosion, more should be ensured that mechanical strength and geometric dimension with higher.If electrode slot wedge has
Quality problems, it is likely that the powerful centrifugal force generated under high temperature and high speed by motor is thrown away, cause electric machine chamber-sweeping it is serious after
Fruit.Analyzed from slot wedge stress, slot wedge in the operating condition, mainly by lateral bending and shear stress, stress destruction
Position is the two sides angle faces for concentrating on slot wedge along longitudinal direction mostly.
Currently, there are two types of production technologies for motor slot wedge: (1) plate grinds slot wedge, has this manufacture craft to be made
Motor slot wedge, since lateral glass fibre is rubbed, to reduce the reinforcing effect of glass fibre；(2) molded wedge, will be upper
The winding of glue glass cloth is pressed and molded at cylindrical shape, be ensure that the continuity of electrode slot wedge transverse fiber, is enhanced the transverse direction of slot wedge
Intensity, thus be used widely.
The main technologic parameters for influencing the motor slot wedge mechanical strength that mould pressing process is made have: (1) coiled strip stick diameter；
(2) molding pressure；(3) molding temperature；(4) clamp time；(5) heat treatment temperature and time.
Influence of the coiled strip stick diameter to molded wedge is as follows: (1) when the diameter of coiled strip stick is excessive, being rubbed with the hands with coiled strip stick
The drum diameter for rolling up the formation of sized glass cloth will be bigger than normal, after cylinder is put into mold cavity, since the perimeter of cylinder is greater than mold
Type chamber perimeter of section can form groove or fold on slot wedge surface after molding, as shown in Figure 1.(2) when the diameter of coiled strip stick is too small
When, it will be less than normal with the drum diameter that coiled strip stick rubs volume sized glass cloth formation with the hands, after cylinder is put into mold cavity, due to cylinder
Perimeter is less than mold cavity perimeter of section, can form resin side in slot wedge side angle faces after molding, it is laterally curved to seriously affect slot wedge
Qu Qiangdu, as shown in Figure 2.
Currently, it is less to the research of motor slot wedge mould pressing process in the prior art, it is all to be chosen roughly according to working experience
Coiled strip stick diameter, thus the prepared motor slot wedge apparent mass of molding is poor, surface generally all has groove, fold or resin
Side, mechanical strength are low.
Utility model content
The purpose of this utility model is that in view of the above shortcomings of the prior art, providing a kind of motor slot wedge mould pressing process
In coiled strip stick, can quickly determine the optimum diameter of coiled strip stick, it is apparent to be molded prepared motor slot wedge for high production efficiency
High-quality, surface is without groove, fold or resin side, high mechanical strength.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of coiled strip stick in motor slot wedge mould pressing process, including cylindric coiled strip stick ontology are structurally characterized in that described
The diameter of phi of coiled strip stick ontologyStickMeet formula:Wherein, ΦsTo be converted by motor slot wedge perimeter of section
At circular diameter, Φs× π=motor slot wedge perimeter of section.
When the diameter of coiled strip stick ontology meets above-mentioned formula, the diameter of coiled strip stick ontology is most suitable, and surface is without groove, pleat
Wrinkle or resin side, it is high-quality.Operator can be directly according to the suitable coiled strip stick of formula fast selecting, and work efficiency is high.
Further, one end of coiled strip stick ontology opens up the groove for clamping sized glass cloth.
Further, the handle convenient for holding is connected on the coiled strip stick ontology.
As a preferred method, the groove with a thickness of 0.2~0.4mm.
Compared with prior art, the utility model can quickly determine the optimum diameter of coiled strip stick, high production efficiency, molding
Prepared motor slot wedge apparent mass is good, and surface is without groove, fold or resin side, high mechanical strength.
Detailed description of the invention
Fig. 1 is the cross-sectional view of motor slot wedge when coiled strip stick diameter is excessive.
Fig. 2 is the cross-sectional view of motor slot wedge when coiled strip stick diameter is too small.
Fig. 3 is the coiled strip stick structural schematic diagram used in the utility model motor slot wedge mould pressing process.
Fig. 4 is the left view of Fig. 3.
Wherein, 1 is coiled strip stick ontology, and 101 be groove, and 2 be handle.
Specific embodiment
As shown in Figure 3 and Figure 4, the coiled strip stick in motor slot wedge mould pressing process includes cylindric coiled strip stick ontology, the volume
The diameter of phi of charge bar ontologyStickMeet formula:Wherein, ΦsTo be converted by motor slot wedge perimeter of section
Circular diameter, electrode slot wedge perimeter of section is the perimeter of section of mold cavity used.Φs× π=motor slot wedge section week
It is long.
One end of coiled strip stick ontology opens up the groove for clamping sized glass cloth.With wire cutting open channels, the groove
With a thickness of 0.2~0.4mm.
Handle is connected on the coiled strip stick ontology.
Motor slot wedge mould pressing process using coiled strip stick described in the utility model includes:
Sized glass cloth is cut into the size of needs according to slot wedge length and weight by step 1；
Sized glass cloth bag is rolled into cylinder with coiled strip stick by step 2；
Step 3 is successively suppressed, demoulded and is heat-treated to cylinder；
In the step 2, sized glass cloth bag is rolled into circle using the coiled strip stick in the motor slot wedge mould pressing process
Cylinder.
In the step 2, sized glass cloth is adhesive plaster in bismaleimide.
The corresponding molding parameters of adhesive plaster are as follows in the bismaleimide of unlike material:
1. in bismaleimide in adhesive plaster: volatile content≤1.5%, resin content be 33%~42%, it is insoluble
Resin content≤10%；In the step 3, clamp time is 8~10min/mm；Molding temperature is 190~200 DEG C；It will molding
Three step gradients of pressure point are forced into 25 ± 5MPa/cm2；In molding 30~50s final vacuum hot pressing；At 220 DEG C heat treatment 3~
6h。
2. in bismaleimide in adhesive plaster: volatile content≤1.5%, resin content be 33%~42%, it is insoluble
Resin content is 10%~20%；In the step 3, clamp time is 8~10min/mm；Molding temperature is 190~200 DEG C；
Three step gradients of molding pressure point are forced into 25 ± 5MPa/cm2；In molding 20~40s final vacuum hot pressing；At 220 DEG C at heat
Manage 3~6h.
3. in bismaleimide in adhesive plaster: volatile content≤1.5%, resin content be 30%~40%, it is insoluble
Resin content is 20%~30%；In the step 3, clamp time is 5~8min/mm；Molding temperature is 200~210 DEG C；
By molding pressure, gradient is forced into 30 ± 5MPa/cm in two steps2；In molding 10~30s final vacuum hot pressing；At 220 DEG C at heat
Manage 3~6h.
4. in bismaleimide in adhesive plaster: volatile content≤1.5%, resin content be 36%~42%, it is insoluble
Resin content is 30%~40%；In the step 3, clamp time is 5~8min/mm；Molding temperature is 190~210 DEG C；
By molding pressure, gradient is forced into 30 ± 5MPa/cm in two steps2；In molding 5~20s final vacuum hot pressing；It is heat-treated at 220 DEG C
3~6h.
Specifically, the span that be 1% with volatile content, resin content 35%, insoluble resin content are 18% comes
On acid imide for adhesive plaster, slot wedge mould pressing process is as follows:
(1) material, weighing are cut out: sized glass cloth is cut into the size of needs according to slot wedge length and weight；
(2) it rolls: suitable coiled strip stick is selected according to coiled strip stick diameter calculation formula, with coiled strip stick by bismaleimide
Upper adhesive plaster on 100~140 DEG C of heating plates equably winding at cylinder；
(3) it suppresses: rolled cylinder being put into the mold cavity of preheating, upper mold is got togather, is placed on hydraulic press electric heating
The center of plate lower part, opening hydraulic press makes the top board of hydraulic press touch mould upper surface, in non-pressurized situation,
Pressurized deflation 3-8 times immediately divides the pressurization of three step gradients without obvious excessive glue after preheating 30s, checks pressure in pressurization
Table numerical value after process stipulation pressure to be achieved, stops pressurization, and kept the temperature, pressure maintaining；
(4) demould: when product reach regulation heat preservation, the dwell time after, can release demoulding, take out product, remove excessive glue
Side；
(5) it is heat-treated: slot wedge is put into baking oven, keep the temperature 3~6h after being gradually heated to 220 DEG C from room temperature.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than limitation, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection scope of the utility model.
Claims (4)
1. the coiled strip stick in a kind of motor slot wedge mould pressing process, including cylindric coiled strip stick ontology, which is characterized in that the coiled strip
The diameter of phi of stick ontologyStickMeet formula:Wherein, ΦsIt is converted by motor slot wedge perimeter of section
Circular diameter, Φs× π=motor slot wedge perimeter of section.
2. the coiled strip stick in motor slot wedge mould pressing process as described in claim 1, which is characterized in that one end of coiled strip stick ontology
Open up the groove for clamping sized glass cloth.
3. the coiled strip stick in motor slot wedge mould pressing process as claimed in claim 1 or 2, which is characterized in that the coiled strip stick sheet
Handle is connected on body.
4. the coiled strip stick in motor slot wedge mould pressing process as claimed in claim 2, which is characterized in that the groove with a thickness of
0.2~0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821093261.2U CN208353166U (en) | 2018-07-11 | 2018-07-11 | A kind of coiled strip stick in motor slot wedge mould pressing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821093261.2U CN208353166U (en) | 2018-07-11 | 2018-07-11 | A kind of coiled strip stick in motor slot wedge mould pressing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208353166U true CN208353166U (en) | 2019-01-08 |
Family
ID=64905864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821093261.2U Withdrawn - After Issue CN208353166U (en) | 2018-07-11 | 2018-07-11 | A kind of coiled strip stick in motor slot wedge mould pressing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208353166U (en) |
-
2018
- 2018-07-11 CN CN201821093261.2U patent/CN208353166U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240130 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240130 |