CN103532296A - Braking assembly of tubular motor - Google Patents
Braking assembly of tubular motor Download PDFInfo
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- CN103532296A CN103532296A CN201310504241.5A CN201310504241A CN103532296A CN 103532296 A CN103532296 A CN 103532296A CN 201310504241 A CN201310504241 A CN 201310504241A CN 103532296 A CN103532296 A CN 103532296A
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- friction plate
- motor
- link
- toothholder
- moving frame
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- 230000000712 assembly Effects 0.000 claims description 19
- 238000000429 assembly Methods 0.000 claims description 19
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000008520 organization Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a braking assembly of a tubular motor. The braking assembly comprises a group of mutually engaged G-type friction plates, a rear gear seat, a connecting rack, a driving rack and a connecting sleeve, wherein the friction plates are matched with an inner wall of the rear gear seat; the driving rack is connected with the motor; and the connecting rack extends out of the rear gear seat to achieve output. The braking assembly can rapidly unlock under rotation of the motor; dead locking can be performed effectively when an output shaft clockwise or anticlockwise rotates; the braking assembly is stable and reliable; and the motor is protected effectively. The braking assembly is good in control performance; rubber mats are arranged on the surfaces of the first friction plate and the second friction plate, and deceleration is performed and then the dead locking is performed after the inner wall of the rear gear seat is contacted, so that impact to a gear caused by too rapid braking is avoided; the gear can be protected; the service life of the tubular motor can be prolonged; and noise generated during braking can be reduced effectively.
Description
Technical field
The present invention relates to the accessory on tube shaped electric machine, especially a kind of tubular motor brake assembly.
Background technology
Tube shaped electric machine is generally used on rolling screen door, roll-up window as power, and control gate and curtain open and close.It comprises stroke assembly, motor, brake assemblies, reducing gear, output shaft and controlling organization.Motor is connected with reducing gear, reduces motor speed, improves the rotating torque of output shaft.Stroke assembly conventionally and controlling organization combination, control tube shaped electric machine only stop scope.
Door leaf and curtain are installed on the output shaft due to tube shaped electric machine, have the trend of falling downwards, even also may be pullled door leaf outward by people's will.Therefore, tube shaped electric machine need to be installed a set of brake assemblies, allow the rotatory force of motor to be delivered to output shaft after slowing down, and the moment back transfer that will prevent output shaft is to reducing gear and motor, avoids door leaf to fall, and prevents that motor from damaging.
Existing tubular motor brake structure, described in the patent No. 201120537980.0 " a kind of brake structure of tube shaped electric machine ", is connected with motor shaft with a helical spring, and helical spring outside is provided with friction means.On helical spring two ends, form the lug radially extending towards helical spring internal diameter, input block and output block are resisted against respectively the opposite side of lug, and the rotation of output block and input block is rotated respectively helical spring along both direction.On braking mechanism, also increase and have a plurality of lugs as position-limit mechanism, prevent helical spring excessive deformation.
When driven by motor power shaft rotates, make helical spring tighten contraction, helical spring is separated with friction means, and motor freely rotates, and moment is delivered to the output shaft of tube shaped electric machine; When output shaft is subject to torsion, make helical spring expansion, helical spring and friction means friction, the output shaft of tubulose is locked.
There are two problems in prior art: the first, helical spring structure limited brake can only be unidirectional locked, locked to the pulling force that rolling screen door is downward, and while upwards lifting rolling screen door; helical spring tightens; helical spring is separated with friction means, and brake is unclamped, and can not protect motor.
The second, owing to having adopted helical spring structure, helical spring itself is carefully narrow, on its outer wall, cannot adhere to friction rubber cushion, friction means direct friction during brake on helical spring and brake structure.Easily produce shake, make a noise.
Summary of the invention
Technical problem to be solved by this invention is, a kind of novel tubular motor brake assembly is provided, the rotation of motor release rapidly, output shaft clockwise and rotate counterclockwise all can be effectively locked, reliable and stable, the life-span is longer and it is little to vibrate, noise is low.
The present invention addresses the above problem adopted technical scheme: a kind of tubular motor brake assembly, its input is connected with the rotating shaft of motor, output is connected with the output shaft of tube shaped electric machine, it is characterized in that: this brake assemblies is socketed to form successively by rear toothholder, adapter sleeve, link, the first friction plate, the second friction plate, brake disc, band moving frame; With having symmetrical each other the first guide pillar and the second guide pillar in moving frame, the top of two guide pillars is all stretched in the location hole of adapter sleeve, synchronizes and rotates with adapter sleeve; There is central axle sleeve at center with moving frame, and the central rotating shaft of link one end coordinates; On brake disc, there are the first spacing hole and the second spacing hole that coordinate with two guide pillars, the other end has a countershaft, in rotating shaft, be separately installed with the first friction plate and the second friction plate, the first friction plate and the second friction plate have the tooth of engagement each other near one end of each axis of rotation; Link middle part has boss, this boss to stretch between the first friction plate and the second friction plate; On link, there are two waist-shaped holes, and the cooperation of the driving key on link, rear toothholder is stretched out on the top of link, as the output of brake assemblies.
Describedly with moving frame, as input, be connected with the output shaft of motor.
Described the first friction plate and the second friction plate are G type, symmetrical each other, and rubber cushion is all installed in outer rim.
All there is spring eye one end away from shaft hole on described the first friction plate and the second friction plate, and back-moving spring is arranged between two spring eyes.
, with gear structure, there is holddown groove on top on described rear toothholder on the afterbody of rear toothholder, and the shell of motor is fixed.
Compared with prior art, the invention has the advantages that: fail safe is better, adopted bi-directional braking structure, what when output shaft is stressed, produce can trigger brake with rotating counterclockwise all clockwise, has effectively protected motor.Noise is low, control performance good; the first friction plate and the second Friction Disk Surface all have rubber cushion; touch first slow down after the inwall of rear toothholder locked again; avoided the too fast mated gear of making of brake to impact; can protect gear; extend the life-span of tube shaped electric machine, and effectively reduce the noise producing while braking.
Accompanying drawing explanation
Fig. 1, stereogram of the present invention.
Fig. 2, explosive view of the present invention.
Fig. 3, vertical view (rear toothholder is partly hidden).
Fig. 4, be not subject to external force state (rear toothholder and adapter sleeve hide).
Fig. 5, released state figure (rear toothholder and adapter sleeve are hidden).
Fig. 6, braking state figure (rear toothholder and adapter sleeve are hidden).
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described.
A brake assemblies for tube shaped electric machine, is socketed to form successively by rear toothholder 1, adapter sleeve 2, link 3, the first friction plate 4, the second friction plate 5, brake disc 6, band moving frame 7.On the afterbody of rear toothholder 1, have holddown groove, and the shell of motor is fixed.Top on rear toothholder is with gear structure, and follow-up reducing gear coordinates.
With moving frame 7, as input, be connected with the output shaft of motor, the output shaft with the bottom of moving frame by spline and motor is connected.The output shaft of motor, comprises the output shaft of motor after decelerator speed change herein.
In band moving frame 7, have the first guide pillar 71 and the second guide pillar 72, the two is symmetrical structure each other, and the middle part 711 of guide pillar is curved, coordinates with the first spacing hole 61 and the second spacing hole 62 on brake disc; There is rivet 712 on the top of guide pillar, and this rivet stretches in the location hole 21 on adapter sleeve 2, and adapter sleeve 2 and the output shaft synchronous of following motor with moving frame 7 are rotated.With axle sleeve 73 centered by the center of moving frame, and the central rotating shaft 31 of link one end coordinates.
The first friction plate 4 and the second friction plate 5 are G type structure, and symmetrical each other.Take the first friction plate as signal, and its top is shaft hole 41, for brake disc on rotating shaft 63 coordinate; The first friction plate 4 and the second friction plate mesh by tooth, by rotating shaft 63, are the center of circle, realize mirror movements; Turn end 42 away from shaft hole on friction plate is provided with spring eye, and back-moving spring 8 is arranged between two spring eyes.
The first spacing hole on brake disc 6 and the second spacing hole have limited the slewing area of guide pillar with respect to brake disc, when driven by motor brake assemblies rotates, by driving the rotating shaft campaign of the first friction plate and the second friction plate, reduced the impulsive force of guide pillar to friction plate.
Link 3 is arranged between the first friction plate 4 and the second friction plate 5.Centered by one end of link, axle 31, and coordinate with the central axle sleeve 72 in moving frame.The middle part of link is approximate triangular form structure, and one of them boss 32 stretches between the first friction plate and the turn end of the second friction plate, for prying open friction plate, it is outwards moved.Link 3 middle part limited location keys 33, for adapter sleeve on waist-shaped hole 22 coordinate.The centre bore 23 of adapter sleeve is passed on the top of link, and stretches out rear toothholder, and extension has spline 34, as the output shaft of brake assemblies.
Shown in Fig. 3, Fig. 4, mounted brake assemblies, driving key 33 is positioned at waist-shaped hole 22.With the first guide pillar in moving frame, be positioned at the center of the first spacing hole of brake disc, the second guide pillar is positioned at the center of the second spacing hole of brake disc.The first friction plate and the second friction plate are opened by the thrust of back-moving spring, and the rubber cushion on friction plate contacts with the inwall of rear toothholder 1, but not locking.It is not being subject to external force, to be can guarantee to open in order to ensure the first friction plate and the second friction plate that back-moving spring 8 is installed, the lubricating oil that prevents rotating shaft place lost efficacy and cause the first friction plate and the second friction plate stuck, back-moving spring has improved performance of the present invention, and and inessential assembly.
As shown in Figure 6 when electric machine rotation, with it, rotate counterclockwise as example, because the output shaft of motor is connected with band moving frame 7, with the guide pillar in moving frame 7, rotate counterclockwise, the second guide pillar 72 contacts the G type structure turning point 54 with on the second friction plate promote the second friction plate and also rotates counterclockwise, make back-moving spring compression, the rubber cushion on the second friction plate separates with the inwall of rear toothholder.Because the second friction plate and the first friction plate intermesh, therefore the first friction plate is also done mirror image and is rotated, clockwise rotate, the rubber cushion of the first friction plate also with the inwall of rear toothholder separately, the complete release of braking.
Again because band moving frame 7 is fixedly connected with adapter sleeve 2, therefore adapter sleeve 2 also rotates counterclockwise, therefore a side of waist-shaped hole 22 contacts with driving key 33 and drives driving key to rotate, link 3 is also rotated counterclockwise, now complete brake assemblies release, and rotating torque is realized to output by the spline 34 on link 3.
Because brake assemblies is symmetrical structure, therefore when motor clockwise rotates, also can be by brake assemblies release, and by spline 34 realizations on link 3, clockwise rotate moment and export.
If be subject to the gravity effect of rolling screen door, when even external force is pullled rolling screen door, the output of tube shaped electric machine is subject to external force to pull and rotate, and link 3 rotates.With spline 34, rotate counterclockwise as example, boss 32 on link will be pried open the turning point 42 of the first friction plate 4, and the first friction plate is also rotated counterclockwise, and rubber cushion 34 contacts and compresses with the inwall of rear toothholder, and stop that the boss 32 on link is rotated further, realize braking; Meanwhile, due to the second friction plate and the first friction plate mirror movements, the second friction plate also contacts and compresses with the inwall of rear toothholder 1, plays braking action.
Because brake assemblies is symmetrical structure, when spline 34 clockwise rotates, brake assemblies, also by automatic locking, prevents that outside torsion from causing damage to motor.The present invention has overcome the safety problem that rolling screen door surprisingly drops or unexpected lifting causes, safe and reliable.
Braking effect is that the first friction plate is synchronizeed and contacted with the inwall of rear toothholder with the second friction plate, and therefore, during brake, pressure and frictional force are evenly dispersed on two rubber cushions, and the life-span of this brake assemblies is longer.
In addition, the waist-shaped hole on adapter sleeve, allows driving key to rotate a bit of distance, has extended braking time, has reserved the time of slowing down.And the present invention adopts the metal surface of rubber cushion and rear toothholder to rub, rubber cushion itself is flexible member, can absorb well vibration, and locking after first slowing down.Than adopting helical spring brake assemblies, while being subject to external impacts, good impact resistant effect, while having avoided braking rapidly, causes deceleration and the cracked problem of transmission mechanism gear of tube shaped electric machine, during brake, shake little, noise is low.
Claims (5)
1. a tubular motor brake assembly, its input is connected with the rotating shaft of motor, output is connected with the output shaft of tube shaped electric machine, it is characterized in that: this brake assemblies is socketed to form successively by rear toothholder (1), adapter sleeve (2), link (3), the first friction plate (4), the second friction plate (5), brake disc (6), band moving frame (7), with having symmetrical each other the first guide pillar (71) and the second guide pillar (72) in moving frame, the top of two guide pillars is all stretched in the location hole (21) of adapter sleeve (2), synchronizes and rotates with adapter sleeve; There is central axle sleeve (73) at center with moving frame, and the central rotating shaft of link one end (31) coordinates; On brake disc, there are the first spacing hole (61) and the second spacing hole (62) that coordinate with two guide pillars, the other end has a countershaft (63), in rotating shaft, be separately installed with the first friction plate (4) and the second friction plate (5), the first friction plate and the second friction plate have the tooth of engagement each other near one end of each axis of rotation; Link middle part has boss (32), this boss to stretch between the first friction plate and the second friction plate; On link, there are two waist-shaped holes (22), and the driving key on link (33) cooperation, rear toothholder (1) is stretched out on the top of link, as the output of brake assemblies.
2. tubular motor brake assembly according to claim 1, is characterized in that: described band moving frame (7) is connected with the output shaft of motor as input.
3. tubular motor brake assembly according to claim 1, is characterized in that: described the first friction plate (4) and the second friction plate (5) are G type, symmetrical each other, and rubber cushion (43) is all installed in outer rim.
4. tubular motor brake assembly according to claim 1, is characterized in that: there is spring eye the upper turning point of described the first friction plate (4) and the second friction plate (5), and back-moving spring (8) is arranged between two spring eyes.
5. tubular motor brake assembly according to claim 1, is characterized in that:, with gear structure (12), there is holddown groove (13) on the top on described rear toothholder on the afterbody of rear toothholder, and the shell of motor (9) is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504241.5A CN103532296B (en) | 2013-10-24 | 2013-10-24 | Tubular motor brake assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504241.5A CN103532296B (en) | 2013-10-24 | 2013-10-24 | Tubular motor brake assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103532296A true CN103532296A (en) | 2014-01-22 |
| CN103532296B CN103532296B (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310504241.5A Expired - Fee Related CN103532296B (en) | 2013-10-24 | 2013-10-24 | Tubular motor brake assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532296B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118413047A (en) * | 2024-07-04 | 2024-07-30 | 浙江湖州森富机电有限责任公司 | Automatic braking device for power failure of motor and tubular motor using same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777411A (en) * | 1995-03-01 | 1998-07-07 | Jidosha Denki Kogyo Kabushiki Kaisha | Geared electric motor |
| JP2005280919A (en) * | 2004-03-30 | 2005-10-13 | Shinsei Seiki Co Ltd | Winding device |
| EP2209187A2 (en) * | 2009-01-16 | 2010-07-21 | Becker-Antriebe GmbH | Tubular drive |
| CN202023863U (en) * | 2011-04-13 | 2011-11-02 | 谭国良 | Improved structure of tubular motor braking device |
| CN202431792U (en) * | 2011-12-20 | 2012-09-12 | 宁波杜亚机电技术有限公司 | Braking structure of tubular motor |
| CN202817988U (en) * | 2012-05-22 | 2013-03-20 | 王雷 | Brake motor |
| CN203086290U (en) * | 2013-01-21 | 2013-07-24 | 宁波东睦达力电机有限公司 | Brake device of DC tubular motor |
| CN203574492U (en) * | 2013-10-24 | 2014-04-30 | 宁波市海誉机电科技有限公司 | Tubular motor brake assembly |
-
2013
- 2013-10-24 CN CN201310504241.5A patent/CN103532296B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777411A (en) * | 1995-03-01 | 1998-07-07 | Jidosha Denki Kogyo Kabushiki Kaisha | Geared electric motor |
| JP2005280919A (en) * | 2004-03-30 | 2005-10-13 | Shinsei Seiki Co Ltd | Winding device |
| EP2209187A2 (en) * | 2009-01-16 | 2010-07-21 | Becker-Antriebe GmbH | Tubular drive |
| CN202023863U (en) * | 2011-04-13 | 2011-11-02 | 谭国良 | Improved structure of tubular motor braking device |
| CN202431792U (en) * | 2011-12-20 | 2012-09-12 | 宁波杜亚机电技术有限公司 | Braking structure of tubular motor |
| CN202817988U (en) * | 2012-05-22 | 2013-03-20 | 王雷 | Brake motor |
| CN203086290U (en) * | 2013-01-21 | 2013-07-24 | 宁波东睦达力电机有限公司 | Brake device of DC tubular motor |
| CN203574492U (en) * | 2013-10-24 | 2014-04-30 | 宁波市海誉机电科技有限公司 | Tubular motor brake assembly |
Non-Patent Citations (1)
| Title |
|---|
| 崔佳冬等: "霍尔传感器在电动卷帘门的应用", 《电子与封装》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118413047A (en) * | 2024-07-04 | 2024-07-30 | 浙江湖州森富机电有限责任公司 | Automatic braking device for power failure of motor and tubular motor using same |
| CN118413047B (en) * | 2024-07-04 | 2024-10-11 | 浙江湖州森富机电有限责任公司 | Automatic braking device for power failure of motor and tubular motor using same |
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| Publication number | Publication date |
|---|---|
| CN103532296B (en) | 2015-12-23 |
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Granted publication date: 20151223 |
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