CN86102500A - Electric speed changing and controlling transmission device - Google Patents
Electric speed changing and controlling transmission device Download PDFInfo
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- CN86102500A CN86102500A CN86102500.8A CN86102500A CN86102500A CN 86102500 A CN86102500 A CN 86102500A CN 86102500 A CN86102500 A CN 86102500A CN 86102500 A CN86102500 A CN 86102500A
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- flywheel
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- clutch
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 238000009958 sewing Methods 0.000 claims abstract description 5
- 230000000452 restraining effect Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 abstract description 47
- 238000005859 coupling reaction Methods 0.000 abstract description 47
- 230000008878 coupling Effects 0.000 abstract description 39
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 description 21
- 230000008859 change Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003042 antagnostic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
An electrically variable and controlled transmission, particularly for industrial sewing machines, includes a continuously operable motor with a flywheel and a brake-coupling element connected to the motor. The cooling ribs define cooling channels on the stator frame for effective cooling. A fan of the circular flywheel type is an axial-radial blower whose suction zone extends as far as the coupling surface of the circular flywheel. A particularly strong cooling effect can thus be given to the brake end cap.
Description
The present invention relates to a kind of electric shift that is specially adapted to use on the industrial sewing machine and control transmission device.
Can consult United States Patent (USP) 4,556,132 understand such transmission device, and it has an annular cooling duct around rotor frame, use the circular flywheel of fan-shaped that air is sucked in from this passage.The radial outside of circular flywheel also has the cooling duct, because the rotation of circular flywheel sucks air or discharge by this passage.Air is discharged vertically basically and is flowed between the cooling ribs that is fixed on the braking end cap neighboring.This can not guarantee to obtain gratifying cooling effect, and is all the more so under the situation of the circular flywheel of high thermal stress.
One object of the present invention just provides a kind of speed change that is specially adapted to use on the industrial sewing machine and control transmission device, and it can guarantee gratifying cooling effect to motor and coupling and brake component.
According to the present invention, be released to by between the cooling fin that is fixed on the rotor frame and go in the cooling air that comes in a large number by the heat that motor produced, so just greatly reduce the temperature (needlewoman dislikes the high temperature here especially) on the shell.Because air is basically along the extension streamlined flow by the determined cooling duct of fin, so have only very weak air disturbance and very little composite noise.Because the fan suction areas of axial-radial blower almost extends near the coupling surface, so just guaranteed in this important zone, to obtain fabulous cooling effect.
And fan provided by the invention has enough suction capactities, and simultaneously, the very big part of radial fan that allows the cooling air to enter into the circular flywheel of high thermal stress is gone.With the radial passage that can obtain to provide high suction capactity and high cooling capacity once simple structural form.
And, the invention enables the air of discharging to change direction from the radial passage that forms at circular flywheel, the air-flow of braking the end cap neighboring with cooling is combined into one.
The cooling of braking end caps has obtained reinforcement extraly.And the invention enables the strong especially cooling of outside acceptance of braking end cap also to make things convenient for those to discharge simultaneously through a part of hot-air that may have fine hair that air ducts are sucked in advance.And, owing to had circular flywheel, the present invention to also help with near being transported to high thermal stress brake component zone at the cooling air of braking end cap.And, the present invention also help with at the coupling coil place or the heat that produces of restraining coil place be discharged into along going in the cooling air of this direct projection passage.
And the present invention further reduces the heat that the shell around rotor frame distributes.
According to the present invention, electric shift that is specially adapted to use on the industrial sewing machine and control transmission device comprise a motor that can rotate continuously, a flywheel and a clutch-brake component that is connected with motor that interface is arranged and be connected with motor.This transmission device also comprises a power transmission shaft.This clutch-brake component comprises a clutch and brake dish that can not be rotationally coupled on the power transmission shaft.This clutch-brake component also comprises a braking frame support bracket that can not rotate that has braking surface.Clutch-brake disc can be selectively with the braking surface of braking frame support bracket or with the interface friction engagement of flywheel together.The shell body that motor has a rotor frame and one to determine around the cooled region of rotor frame.Flywheel has constituted a fan that the suction cold air is used.The cooling duct of determining by cooling fin be on the rotor frame and fan be one have extend near the suction areas of interface axially-radial blower.
In order to understand the purpose of the present invention and invention thereof better, please refer to following explanation and accompanying drawing, scope of the present invention will put forward in appended claims.
Please refer to accompanying drawing now:
Fig. 1 represents one according to the axle longitudinal sectional drawing that comprises the transmission device of a motor and braking-coupling unit of the present invention;
Fig. 2 has represented the enlarged drawing of the braking-coupling unit among Fig. 1;
Fig. 3 represents the part that cuts down from braking-coupling unit;
Fig. 4 represents another part of cutting down from braking-coupling unit.
Transmission device in the accompanying drawing comprises a motor 1 and a braking-coupling unit.Motor 1 preferably includes a cylindrical circular substantially rotor frame 3, and 4 one layering coils 5 that are positioned at the centre in common mode of a stator coil are arranged on framework 3.Rotor 7 also is installed on the center of center longitudinal axis 6.Rotor is connected with motor drive shaft 8.Motor drive shaft 8 rotates at the bearing that is positioned on the end cap 9,10.Away from braking-coupling unit 2(braking-clutch components) end cap 10 preferably and rotor frame 3 be cast into one.Motor drive shaft rotates in the bearing that is positioned at 11 li of dead eyes, and this bearing preferably adopts rolling bearing system 12, and rolling bearing system 12 is a radial-axial ball bearing.The interior ring 13 of rolling bearing 12 is supported on the axle collar 14 of motor drive shaft 8.At another axial vane surface, the outer shroud 15 of rolling bearing 12 is bearing on the stop collar 17 by a pretension spiral compression spring 16, stop collar preferably and end cap 10 be cast into one, like this, can guarantee that rolling bearing 12 does not move axially on the one hand on motor drive shaft 8, on the other hand, in the permission adjusting range of spring 16, adjust the axial location of motor drive shaft 8.
A circular flywheel 29 preferably is fixed on the prolongation axle 28 of motor drive shaft 8 with a slip feather connector 30 with the torsion fixed form, is equipped with rolling bearing 22 on it.The preceding free end of the hub 31 of circular flywheel 29 preferably is resisted against on the interior ring 23 of rolling bearing 22, and in the most handy nut 33 is pressed on vertically on the ring 23, nut 33 be screwed in the threaded rod 32 that prolongs axle 28 be fixed in the axial direction simultaneously with motor drive shaft 8 corresponding positions on.Comprise rotor 7, can move and the spring 16 and 26 that is positioned on the moving direction applies opposite force respectively along central longitudinal axis 6 with rolling bearing 12,22 motor drive shaft 8 and the part of circular flywheel together.
The power transmission shaft 38 that is in coaxial position with central longitudinal axis 6 is preferably on the bearing with full rotation ability and rotates, on the one hand in the dead eye 39 of dog point 34 on the other hand in the dead eye 40 on the circular flywheel 29 relative with the latter.Power transmission shaft 38 is preferably on the rolling bearing 41,42 and rotates, and they are the radial-axial ball bearings that lay respectively at dead eye 39,40.A coupling-brake disc 43(clutch-brake disc) preferably is installed on the power transmission shaft 38 between rolling bearing 41 and 42.This coupling-brake disc preferably includes one by the outer pivot ring 44 that has the magnetic force material to make.The most handy screw 47 is fixed on a spring washer 45 on the surface of outer ledge of this armature ring 44.Spring washer 45 is preferably in the zone of inward flange of pivot ring 44 with screw 47 and is fixed on the radially outstanding annular collar 48 of power transmission shaft 38.The fixing means of a very thin spring washer 45 of this usefulness allows pivot ring 44 to move and coaxial with this along the direction of axis 6.
One as coupling surface 49(interface) the ring-type friction pad of usefulness preferably is fixed on pivot ring 44 on the one side of circular flywheel 29.This is to be used for and annular linear coupling surface 50(interface in the front side of the circular flywheel of facing 29) match.Pivot ring 44 preferably has a ring 51 on its neighboring, it stretches to circular flywheel 29 vertically.This ring 51 preferably extends to circular flywheel 29 places and one a few tenths of millimeter little end play a is only arranged.Ring-type coupling surface 49(interface) neighboring is resisted against on the inner rim of ring 51 basically.
Braking end cap 34 comprises a coupling coil shell 52(clutch coil shell), this shell preferably be looped around pivot ring 44 around, the path that an a few tenths of millimeter is only arranged therebetween is to gap b, and the radial periphery part 54 that the best radial outside annular element 53 of this shell surrounds near the circular flywheel 29 of coupling surface 50 is only stayed one a few tenths of millimeter radial clearance c therebetween.A ring-type electricity-magnetic coupling coil 51(clutch coil) preferably is installed in the coupling coil shell 52 on the braking end cap 34 of localized immobilization.When this coupling coil 55 of excitation, one magnetic circuit 56 passes outer casing member 53 from coupling coil shell 52, the ring 51 of the peripheral part 54 of radial clearance c, circular flywheel 29, circular flywheel 29, end play a, pivot ring 44, and radial clearance b turn back to coupling coil shell 52 and finish closure.Like this, just make that the coupling surface 49 of coupling-brake disc 43 is pressed against on the coupling surface 50 of circular flywheel 29, thereby along with its rotation is coupled together motor drive shaft 8 and power transmission shaft 38.
As shown in Figure 3, an axial-radial mouth is arranged preferably on coupling coil shell 52, it is arranged in the zone of ring 51 in the face of brake pad 57.The degree of depth that this otch extends preferably makes ring 51 put in the about millimeter of this lower cut along the direction of braking end cap.This otch apart from the radial and axial distance in the nearest zone of ring 51 more preferably greater than 0.5mm, even can be greater than 1mm, instead like this can allow radially magnetic circuit passes radial clearance b from coupling coil shell 52.So, when coupling coil 55 is subjected to encouraging, got rid of ring 51 " adhesion " on the framework 44 to the possibility of braking on the end cap 34.
Coupling magnetic circuit 56 preferably only roughly passes end play a vertically so can produce suitable bonding force in this district.This coupling magnetic circuit 56 also can be only walked in the zone of the radial clearance c between the shell spare 53 of the peripheral part 54 of circular flywheel 29 and coupling coil shell 52 vertically, so just can apply displacement force on the parts of being made up of rotor 7, motor drive shaft 8 and circular flywheel 29, it just can antagonistic spring 16 and 26 spring force and moving vertically.This is to realize by extra concave station.A concave station 66 on coupling coil shell 52 preferably extends radially outward so that the peripheral part 54 of circular flywheel 29 can put in this concave station about 0.5 to 1mm vertically.
Another concave station 67 is preferably arranged on circular flywheel 29.This has limited circular cylindrical perimeter part 54 in the side away from coupling-brake disc 43.Outer casing member 53 preferably puts in vertically in this concave station 67 and goes.The least displacement of 54 pairs of coupling-brake discs of peripheral part has guaranteed that when coupling coil 55 is subjected to encouraging power never is applied on the circular flywheel 29 along the direction of coupling restraining coil 43.But on circular flywheel 29, apply very little opposite force.So just guaranteed that when coupling coil 55 is subjected to encouraging circular flywheel 29 never moves along the direction of coupling-brake disc 43.Coupling coil 55 and restraining coil 63 preferably connect by this way promptly make coupling magnetic circuit 56 and braking magnetic circuit 64b the two in the zone of coupling coil shell 52 of process direction opposite.This has caused magnetic flux more promptly to disappear and be coupled-and brake disc more promptly moves in the position of circular flywheel 29 in the position of braking supporting base 34 from it, and vice versa.As seen in Figure 2, the width preferably about 0.1 to 0.2mm of the air gap between coupling surface 49 and the coupled surface 50, promptly when being transformed into couple state from on-position and being transformed into on-position from couple state, in both cases, the pivot ring 44 that has brake pad 57 and a coupling surface 49 only needs to move a very short distance.Fig. 3 has represented the enlarged drawing of the air gap 68 between the brake pad 57 and brake area 58 during being coupled.
The interior ring 69 that is bearing in the rolling bearing 41 that dog point covers preferably is bearing in the face of on the restraint axle collar 70 on the power transmission shaft 38 of circular flywheel 29 sides.The side outwardly of the outer shroud 71 of this rolling bearing 41 preferably rests on one and adjusts on the nut 72, and this nut is screwed on the external screw thread 73 around the bearing hole 39 on the braking end cap 34.The most handy dog screw 74 is fixed on this adjustment nut 72 on the position relevant with braking end cap.When braking-coupling unit 2 is subjected to displacement, the position of power transmission shaft 38 be fix by the supporting base of adjusting nut 72 and above-mentioned rolling bearing 41 firm.
In ring 75(be supported in the interior ring 75 of the rolling bearing in the circular flywheel 29) preferably rest on the stopper 76 that is fixed on the power transmission shaft 38 in the face of the side of coupling-brake disc 43, this stopper is made of a locking ring, is the scope of freedom towards the face of the interior ring 75 of motor 1.
The side in the face of coupling-brake disc 43 of the outer shroud 77 of rolling bearing 42 is scope of freedoms.The one side in the face of motor 1 of outer shroud 77 preferably rests on the fixed muffle 78, and this sleeve is installed in the bearing hole 40.This fixed muffle 78 preferably has a narrow slit 79, is put in this narrow slit by a tenon 80 of a fixing guard plate 81 of nut 33 and goes, and this fixed muffle 78 is fixed by torsion and is close on circular flywheel 29 like this.Power transmission shaft 38 preferably has 82, one in a continuous hole to adjust screw 83 to pass in the screwed hole 84 that this hole is screwed in an extension 28, an available screwdriver or similarly instrument adjust this and adjust screw.Adjust the axial location that screw 83 has just been adjusted screw effectively with such method adjustment, or exactly, adjusted because of being connected in the radially evagination stop collar 85 adjusted above the screw with respect to motor drive shaft thereby also be axial location with respect to circular flywheel 29.One in several bi-metal plates on this adjustment screw 83 preferably is bearing on this stop collar 85.The outside (i.e. the outside of the bimetallic plates dish of the most close coupling-brake disc 43) of dish preferably is bearing on the ring edge 87 of fixed muffle 78 relatively.Can be screwed into an axle extension 28 to back-out by the adjustment screw and change the axial location of circular flywheel 29 with respect to power transmission shaft 38.Because compression spring 16 is along the constantly pushing and circular flywheel 29 motor drive shaft 8 together of direction of coupling-brake disc 43, the static pressure that has the coupling-brake disc 43 of brake pad 57 can be adjusted by being adjusted at braking end cap 34 back and regional adjustment nuts 72, has also adjusted the air gap 68 between coupling surface 49 and coupled surface 50 simultaneously.When coupling coil 55 and restraining coil 63 all were not subjected to encouraging, coupling-brake disc 43 preferably was resisted against on the brake area 58 of braking end cap 34 with initial pressure, and this pressure is adjustable.If because the thermic load of frequent transitions makes coupling surface 49 and brake pad 57 expand, this will cause that also circular flywheel 29 correspondingly heats up.This temperature will be transmitted to bi-metal plate 86, and make its bending, so each bi-metal plate is according to the crooked mutually extruding of their arrangement.This will cause adjusting screw 83, and the direction to motor 1 moves together with the tension force of motor drive shaft 8 and circular flywheel 29 resistance springs 16.Therefore reducing of the air gap 68 that has compensated coupling surface and brake pad 57 expanded by heating and caused.Because in order to prevent heavy sound noise, the width of air gap should be 0.1mm usually, so this compensation needs when connecting coupling-brake disc 43.Yet must accurately maintain this small air gap during operation and not allow to dwindle this slit.
As shown in Figure 1, cooling fin 98 preferably is installed on the rotor frame 3.These fins preferably are distributed on the zone of rotor frame, and extend radially with axis 6 and extend in parallel.The sealing cooling fin 98 a cup-shaped housing 99 preferably pushing cover on whole rotor frame 3.The panel 100 of housing 99 preferably leans against on the spacer 101, spacer preferably and end cap 10 be cast into one.The most handy screw 102 is fixed on housing 99 on the spacer 101.The panel 100 of housing 99 preferably has some openings can allow the cooling air enter from these openings.Housing 99 be that columnar case 104 preferably rests on the protuberance 105 on the cooling fin 98 substantially, so just only contact as point-like with housing 99.The conduction orientation of heat is to pass through cooling fin 98 to housing 99, so the heat of minute quantity is only arranged from rotor frame 3; Housing 99 only has minimum temperature rise.
Preferably also be installed in the shell 18 with cooling fin 98 corresponding cooling fins 106.They preferably radially extend in part between end cap 9 and the shell 18, so they have supported end cap simultaneously.A free space 107 is preferably arranged between the circular flywheel 29 of end cap 9, and between the case 104 of fin 98 and rotor frame 3 or housing 99, or at cooling fin 106, the cooling duct 108 that forms between end cap 9 and the shell 18 is connected with free space.
The cooling air that is drawn through opening is according to the direction shown in the arrow 114, and by cooling duct 108, by free space 107, suction district 109 is then by radial passage 110.As shown in Figure 1, because suction areas 109 extends near the coupled surface 50, providing so just for coupled surface 50 these crucial light zones very effectively has cooling effectiveness.
Air is 110 outflows from the radial passage between the cooling fin 115, and these fins are in the neighboring and the front of braking end cap 34.The most handy screw 116 is fixed on an annular metal sheet lid 117 outside of the front side of braking end cap 34, the portion of air that flows between cooling fin 115 has changed radially diffluence inwards of the flow direction according to the direction shown in the arrow 118 like this, and has cooled off the front surface of braking end cap 34.The braking end cap 34 brake area 58 near and coupling coil 55 and restraining coil 63 radially between, braking end cap 34 preferably has an annular groove as a spin chamber, and this groove extends near coupling coil 55, restraining coil 63 and the brake area 58 always.Air in this chamber according to the direction shown in the arrow 118 rotation, then by discharging adjusting the outlet 120 that near the nut 72 metallic plate covers a radially inner side position of 117.
The direction of the cooling air that flows out from radial passage 10 is changed direction again to be become to roll between cooling fin 115 and be preferably in to change again in the direction boot section 121 with axis 6 parallel gas flow and carries out, and the outside of this boot section is limited by shell 18.
Though preferred example of the present invention has been described.But clearly, be proficient in those skilled in the art for those, they can not exceed scope of the present invention and make various different changes and improvements, and therefore, its purpose is that the changes and improvements that all are so all belong within the spirit and scope of the present invention
Claims (9)
1, a kind of electric shift that industrial sewing machine uses and transmission device of control of being specially adapted to, it comprises: the motor of an energy Continuous Drive, one has clutch surfaces and is connected to flywheel on the said motor, a clutch-brake component that is connected on the said motor, a power transmission shaft, above-mentioned clutch-brake component comprises a clutch-brake disc, this dish is connected on the above-mentioned power transmission shaft without spin, above-mentioned clutch-brake component also comprises the braking frame support bracket with a brake area, above-mentioned clutch-brake disc can selectively be made friction engagement with the above-mentioned brake area of above-mentioned braking frame support bracket or with the above-mentioned clutch surfaces of above-mentioned flywheel, said motor has a rotor frame and by around the shell that cooled region limited of said stator framework, above-mentioned flywheel has formed the fan of a suction cooling air, cooling fin on the said stator framework defines the cooling duct, said fans be a kind of axially-air blast of radial mode, air blast has the suction district of an extension near above-mentioned clutch surfaces.
2, the device that requires according to claim 1, the above-mentioned suction district of a transmission device includes a ring groove and a radial passage of drawing with above-mentioned groove on above-mentioned flywheel.
3, the device that requires according to claim 2, transmission device are included in the fin on the above-mentioned flywheel and are installed in a air guide ring on the flywheel, and above-mentioned radial passage is exactly determined by above-mentioned fin on the above-mentioned flywheel and above-mentioned air guide ring.
4, the device that requires according to claim 2, a transmission device comprises a guidance field of guiding again in the back, above-mentioned radial passage of above-mentioned flywheel, and the outer surface of above-mentioned braking frame support bracket has cooling fin, and these fins and above-mentioned guidance field join.
5, the device that requires according to claim 4, the above-mentioned cooling fin of a transmission device on above-mentioned braking frame support bracket extends to the front of above-mentioned braking frame support bracket always.
6, the device that requires according to claim 5, a transmission device comprises a metallic plate lid, the above-mentioned cooling fin that extends to above-mentioned braking frame support bracket front has at least a part to be covered in by above-mentioned metallic plate lid.
7, the device that requires according to claim 6, a transmission device has a groove in the above-mentioned front of above-mentioned braking frame support bracket, and this groove extends near the above-mentioned brake area always.
8, the device that requires according to claim 7, a transmission device comprises a clutch coil and a restraining coil on above-mentioned braking frame support bracket, and the groove in the above-mentioned front of above-mentioned braking frame support bracket extends to the above-mentioned clutch coil on above-mentioned braking frame support bracket and the zone of above-mentioned restraining coil always.
9, the device that requires according to claim 1, a transmission device only has sub-fraction to lean on above-mentioned shell at the above-mentioned cooling fin on the rotor frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86102500 CN1006562B (en) | 1986-04-14 | 1986-04-14 | Electric speed changing and controlling transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86102500 CN1006562B (en) | 1986-04-14 | 1986-04-14 | Electric speed changing and controlling transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86102500A true CN86102500A (en) | 1987-10-28 |
| CN1006562B CN1006562B (en) | 1990-01-24 |
Family
ID=4801738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86102500 Expired CN1006562B (en) | 1986-04-14 | 1986-04-14 | Electric speed changing and controlling transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006562B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676728B (en) * | 2004-03-29 | 2012-03-28 | 杜尔克普—阿德勒股份公司 | Sewing machine |
| CN102741664A (en) * | 2009-11-26 | 2012-10-17 | 大陆汽车有限责任公司 | Sensor module and production method of a sensor module |
| CN107005126A (en) * | 2015-01-26 | 2017-08-01 | 索尤若驱动有限及两合公司 | Motor with brake that can be Electromagnetically actuated |
| CN117060640A (en) * | 2023-10-12 | 2023-11-14 | 冠亚机械工业（昆山）有限公司 | High-efficient motor, electric block and hoist for hoist that can cool down fast |
-
1986
- 1986-04-14 CN CN 86102500 patent/CN1006562B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676728B (en) * | 2004-03-29 | 2012-03-28 | 杜尔克普—阿德勒股份公司 | Sewing machine |
| CN102741664A (en) * | 2009-11-26 | 2012-10-17 | 大陆汽车有限责任公司 | Sensor module and production method of a sensor module |
| CN107005126A (en) * | 2015-01-26 | 2017-08-01 | 索尤若驱动有限及两合公司 | Motor with brake that can be Electromagnetically actuated |
| CN117060640A (en) * | 2023-10-12 | 2023-11-14 | 冠亚机械工业（昆山）有限公司 | High-efficient motor, electric block and hoist for hoist that can cool down fast |
| CN117060640B (en) * | 2023-10-12 | 2024-02-20 | 冠亚机械工业（昆山）有限公司 | High-efficient motor, electric block and hoist for hoist that can cool down fast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1006562B (en) | 1990-01-24 |
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