CN102678887A - Reducer and motor brake thereof - Google Patents
Reducer and motor brake thereof Download PDFInfo
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- CN102678887A CN102678887A CN2011100560847A CN201110056084A CN102678887A CN 102678887 A CN102678887 A CN 102678887A CN 2011100560847 A CN2011100560847 A CN 2011100560847A CN 201110056084 A CN201110056084 A CN 201110056084A CN 102678887 A CN102678887 A CN 102678887A
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- output shaft
- positioning element
- speed reducer
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a reducer and a motor brake thereof. The reducer comprises a front cover, a box, a rear cover, a reducer output shaft and a toothed output shaft. A first end of the toothed output shaft matches with the reducer output shaft to drive the same to rotate. A second end of the toothed output shaft is provided with a channel containing the end of a brake positioning part of the motor brake. The motor brake comprises the brake positioning part, a friction plate and a brake disc. A first end of the brake positioning part is located in the channel at the second end of the toothed output shaft and is capable of axially sliding in the channel. A second end of the brake positioning part matches with an output shaft of a driving device. The friction plate is fixed on the rear cover. The brake disc is fixed to the outside of the brake positioning part at the second end thereof. The brake disc can be contacted with or separated from the friction plate to achieve self-locking and unlocking of the reducer. The mechanical motor brake replaces an electromagnet brake mechanism, and accordingly the defects of the electromagnet brake mechanism are overcome. The motor brake is stable in operation, reliable and durable.
Description
Technical field
Present invention relates in general to the mechanical transmissioning technology field, more particularly, relate to the motor brake of a kind of speed reducer and use thereof.
Background technique
The general electromagnet brake modes that adopts of existing motor brake; Usually at the motor bonnet brake wheel with the spigot shaft coaxle of rotor is housed; Bonnet inside is equipped with an end and is leaned the spring on adjusting screw, and spring is surrounded with electromagnetic coil outward, and the other end of spring leans on armature.When electrical power, electromagnetic coil produces axial magnetic control power, makes the armature pressure spring; Axially leave the friction plate of brake wheel, the motor rotation is when motor cuts off the power supply; The axial magnetic control power of electromagnetic coil disappears, and recovers deformation at spring and produces elastic force, and armature contacts with the friction plate of brake wheel under the elastic force of spring; Produce surface friction drag, motor is stopped gradually, wherein can be through the elastic force of adjusting screw Regulation spring to armature.
Yet, existing this electromagnet braking mechanism, it makes complicacy, required precision is high; And be easy to generate fault, for example when overvoltage or excess current occurring, can burn out electromagnetic coil; Cause brake to be lost efficacy; When if brake was lost efficacy and motor does not cut off the power supply, friction plate can make rotor force to stop operating, and electric current is still imported motor coil motor coil is burnt out.And the magnetic force that the electromagnet braking mechanism produces attracts dust impurity to get into motor easily, and motor is caused damage.
Summary of the invention
The present invention aims to provide the motor brake of a kind of speed reducer and use thereof, adopts the mechanical type braking mechanism to substitute existing electromagnet braking mechanism, fundamentally solves the problem that the electromagnet braking mechanism exists.
A kind of speed reducer provided by the invention has the case structure that is made up of protecgulum, casing and bonnet, and this speed reducer comprises:
Speed reducer output shaft, its first end is positioned at said casing, and second end stretches out protecgulum and is used for outwards transmitting rotatablely moving of drive unit generation;
Band tooth output shaft is positioned at said casing, and its first end cooperates with said speed reducer output shaft to drive this speed reducer output shaft rotation, and second end has the passage of the braking positioning element end that holds mechanical motor brake;
Wherein the mechanical motor brake of this speed reducer use comprises:
The braking positioning element is positioned at said casing, and its first end is positioned at the passage of said band tooth output shaft second end and can endwisely slips at this passage, and second end cooperates with the output shaft of said drive unit;
Friction plate is positioned at said casing and is fixed on the said bonnet;
Brake disc; Be positioned at said casing; It is in the external stability of said braking positioning element second end and this braking positioning element, so that this brake disc contacts with said friction plate or separates when said braking positioning element axially slides in the said band tooth output shaft second end passage.
Wherein, first end of said band tooth output shaft cooperates with first end of said speed reducer output shaft through gear pair this speed reducer output shaft is rotated with the rotation of said band tooth output shaft.
First end of said braking positioning element has axial passage; This passage is axially arranged with pressure spring; In the passage of second end of said band tooth output shaft, be provided with many steel balls between the vias inner walls of second end of said braking positioning element first end outer wall and said band tooth output shaft.
In first kind of mode of execution of the present invention, second end of said braking positioning element has spiral concave surface and boss, and said motor output shaft has the spiral end face that cooperates with said spiral concave surface and boss.
In second kind of mode of execution of the present invention, said motor output shaft has spiral concave surface and boss, and second end of said braking positioning element has the spiral end face that cooperates with said spiral concave surface and boss.
In the third mode of execution of the present invention, cooperate through clutch shaft between the output shaft of said second end and said drive unit.
Wherein, second end of said braking positioning element has spiral concave surface and boss, and first end of said clutch shaft has the spiral end face that cooperates with said spiral concave surface and boss, and second end is connected with the output shaft of said drive unit; Perhaps, first end of said clutch shaft has spiral concave surface and boss, and second end is connected with the output shaft of said drive unit, and second end of said braking positioning element has the spiral end face that cooperates with said spiral concave surface and boss.
In the present invention, have key portion on the said drive unit output shaft, second end of said clutch shaft has the keyway that cooperates with this key portion; Perhaps, second end of said clutch shaft has key portion, has the keyway that cooperates with this key portion on the said drive unit output shaft.
Through a kind of speed reducer of embodiment of the present invention and the motor brake of use thereof; Adopt mechanical motor brake to substitute the electromagnet braking mechanism, as stated, it mainly is made up of braking positioning element, friction plate and brake disc; Make simple; Need be as electromagnet braking mechanism highi degree of accuracy so, and the fault of having avoided the electromagnet braking mechanism to bring fully, it is stable, reliable, durable.
Description of drawings
Fig. 1 is the decomposing schematic representation according to a kind of speed reducer of embodiment of the present invention;
Fig. 2 is the stereogram according to a kind of speed reducer of embodiment of the present invention;
Fig. 3 is the rear view of speed reducer shown in Figure 2;
Fig. 4 A is according to the speed reducer of the embodiment of the present invention sectional view along B-B direction among Fig. 3;
Fig. 4 B is according to the motor of the embodiment of the present invention sectional view along B-B direction among Fig. 3
Fig. 5 is the sectional view of A-A direction among Fig. 4 A;
Fig. 6 is according to the brake positioning element of a kind of speed reducer of embodiment of the present invention and the schematic representation of clutch shaft.
Embodiment
For making the object of the invention, technological scheme and advantage clearer, further combine accompanying drawing that the present invention is explained in detail below.
Shown in Fig. 1,2,3,4A, 4B, a kind of speed reducer provided by the invention has the case structure that is made up of protecgulum 1, casing 2 and bonnet 3, and this speed reducer comprises;
Speed reducer output shaft 10, its first end are positioned at casing 2, the second ends and stretch out protecgulum 1 and be used for outwards transmitting rotatablely moving that drive unit (for example motor 4) produces;
Band tooth output shaft 12; Through two bearing fixing in casing 2; One of them bearing is positioned on the protecgulum 1; Another bearing is arranged in casing 2, and first end of this band tooth output shaft 12 cooperates and cooperates with said speed reducer output shaft 10 through gear pair 11 with the bearing on being positioned at protecgulum 1 is rotatable, so that this speed reducer output shaft 10 rotates with the rotation of said band tooth output shaft 12; Second end is connected with the bearing that is arranged in casing 2 rotationally, and this second end has the passage of braking positioning element 20 ends that hold mechanical motor brake.Need to prove that the present invention is not limited thereto, band tooth output shaft 12 can adopt known other modes of the present invention to cooperate to realize the transmission of said rotation with speed reducer output shaft 10.
Wherein the mechanical motor brake of this speed reducer use comprises:
In embodiment of the present invention; First end of said braking positioning element 20 has axial passage; This passage is axially arranged with pressure spring 21, in the passage of second end of said band tooth output shaft 12, is provided with many steel balls 13 (for example 3,6,9 etc.) between the vias inner walls of second end of said braking positioning element 20 first end outer walls and said band tooth output shaft 12; Wherein, the structural relation of band tooth output shaft 12, braking positioning element 20, steel ball 13 and pressure spring 21 is as shown in Figure 5.
Second end of said braking positioning element 20 cooperates with the output shaft 40 of motor 4 through clutch shaft 24; As shown in Figure 6; Second end of said braking positioning element 20 has spiral concave surface (being illustrated as A ' face and B ' face) and boss 201; First end of said clutch shaft 24 has the spiral end face (being illustrated as A face and B face) that cooperates with said A ' face, B ' face and boss 201, and second end is connected with the output shaft 40 of motor 4.Particularly, shown in Fig. 4 A and 4B, second end of said clutch shaft 24 has the keyway that the key portion on the output shaft 40 with motor cooperates; Certainly the present invention is not limited to this; Said clutch shaft can also adopt other modes to be connected with the output shaft of motor, and for example, second end of said clutch shaft has key portion; The keyway that tool cooperates with key portion on the said output shaft perhaps adopts other Placements well known in the art.
When motor 4 rotates; Its output shaft 40 drives clutch shaft 24 and rotates; Because the resistance of gear pair 11 produces certain resistance through band tooth output shaft 12, make the spiral end face B face of clutch shaft 24 rotate to the peak (β point) of braking positioning element 20 spiral concave surfaces, the boss on braking positioning element 20 both sides and the spiral end face of clutch shaft 24 form couple; Realize rotating synchronously; This moment, pressure spring 21 was compressed, and promptly brake disc 23 and braking positioning element 20 are passed certain distance forward by clutch shaft 24 and made brake disc 23 separate with friction plate 30, thus speed reducer release (being brake off); Braking positioning element 20 drives band tooth output shaft 12 through steel ball 13 and rotates; Thereby band tooth output shaft 12 rotates with the output shaft 40 of motor 4 synchronously, further drives speed reducer output shaft 10 through gear pair 11 and rotates, thereby outwards transmit rotatablely moving of motor 4; When motor 4 stops; Braking positioning element 20 resets under the effect of pressure spring 21, and the A face of its A ' face, B ' face and clutch shaft 24, B face coincide, and this moment, A face and B face were in the minimum point (α point) of the spiral concave surface of braking positioning element 20; Brake disc 23 contacts with friction plate 30; And under the effect of pressure spring 21, produce certain frictional force between brake disc 23 and the friction plate 30, realize the speed reducer self-locking.
In another embodiment of the invention; First end of said clutch shaft 24 has spiral concave surface and boss; Second end is connected with the output shaft of motor; Second end of said braking positioning element 20 has the spiral end face that cooperates with said spiral concave surface and boss, thereby realizes cooperating of braking positioning element 20 and clutch shaft 24.Certainly, the present invention also is not limited to this, can also adopt other modes to realize between said braking positioning element 20 and the clutch shaft 24, as long as can realize above-mentioned purpose.
In other mode of executions of the present invention; Said braking positioning element 20 can adopt other modes to cooperate with the output shaft of motor 4; Perhaps can omit clutch shaft 24; For example, second end of said braking positioning element 20 has spiral concave surface and boss, and the output shaft 40 of said motor has the spiral end face that cooperates with said spiral concave surface and boss.Perhaps, said motor output shaft 40 has spiral concave surface and boss, and second end of said braking positioning element 20 has the spiral end face that cooperates with said spiral concave surface and boss.
From the above; Embodiment of the present invention adopts mechanical motor brake to substitute the electromagnet braking mechanism, and as stated, its master is made up of braking positioning element, friction plate and brake disc; Make simple; And need be as electromagnet braking mechanism highi degree of accuracy so, and the fault of having avoided the electromagnet braking mechanism to bring fully, it is stable, reliable, durable.
More than combine embodiment to describe the present invention; These embodiments only are exemplary; Can not limit the present invention's protection domain with this, those skilled in the art can carry out various modifications, variation or replacement under the prerequisite that does not break away from essence of the present invention.Therefore, the various equivalent variations according to the present invention did still belong to the scope that the present invention is contained.
Claims (19)
1. speed reducer, it has the case structure that is made up of protecgulum, casing and bonnet, it is characterized in that, and said speed reducer also comprises:
Speed reducer output shaft, its first end is positioned at said casing, and second end stretches out protecgulum and is used for outwards transmitting rotatablely moving of drive unit generation;
Band tooth output shaft is positioned at said casing, and its first end cooperates with said speed reducer output shaft to drive this speed reducer output shaft rotation, and second end has the passage that holds braking positioning element end;
Said braking positioning element is positioned at said casing, and its first end is positioned at the passage of said band tooth output shaft second end and can endwisely slips at this passage, and second end cooperates with the output shaft of said drive unit;
Friction plate is positioned at said casing and is fixed on the said bonnet;
Brake disc; Be positioned at said casing; It is in the external stability of said braking positioning element second end and this braking positioning element, so that this brake disc contacts with said friction plate or separates when said braking positioning element endwisely slips in the said band tooth output shaft second end passage.
2. speed reducer as claimed in claim 1 is characterized in that, first end of said band tooth output shaft cooperates so that this speed reducer output shaft rotates with the rotation of said band tooth output shaft with first end of said speed reducer output shaft through gear pair.
3. speed reducer as claimed in claim 1 is characterized in that, first end of said braking positioning element has axial passage, and this passage is axially arranged with pressure spring.
4. like claim 1 or 3 described speed reducers, it is characterized in that, in the passage of second end of said band tooth output shaft, be provided with many steel balls between the vias inner walls of second end of said braking positioning element first end outer wall and said band tooth output shaft.
5. speed reducer as claimed in claim 1 is characterized in that, second end of said braking positioning element has spiral concave surface and boss, and said motor output shaft has the spiral end face that cooperates with said spiral concave surface and boss.
6. speed reducer as claimed in claim 1 is characterized in that said motor output shaft has spiral concave surface and boss, and second end of said braking positioning element has the spiral end face that cooperates with said spiral concave surface and boss.
7. speed reducer as claimed in claim 1 is characterized in that, second end of said braking positioning element cooperates with the output shaft of said drive unit through clutch shaft.
8. speed reducer as claimed in claim 7 is characterized in that, second end of said braking positioning element has spiral concave surface and boss,
First end of said clutch shaft has the spiral end face that cooperates with said spiral concave surface and boss, and second end is connected with the output shaft of said drive unit.
9. speed reducer as claimed in claim 7 is characterized in that, first end of said clutch shaft has spiral concave surface and boss, and second end is connected with the output shaft of said drive unit,
Second end of said braking positioning element has the spiral end face that cooperates with said spiral concave surface and boss.
10. like claim 8 or 9 described speed reducers, it is characterized in that have key portion on the said drive unit output shaft, second end of said clutch shaft has the keyway that cooperates with this key portion;
Perhaps
Second end of said clutch shaft has key portion, has the keyway that cooperates with this key portion on the said drive unit output shaft.
11. a motor brake that is used for speed reducer is characterized in that, this motor brake comprises:
Braking positioning element, its first end be positioned at said speed reducer band tooth output shaft end passage and can endwisely slip at this passage, second end cooperates with the output shaft of said drive unit;
Friction plate is positioned at said speed reducer and is fixed on the bonnet of speed reducer;
Brake disc; Be positioned at said speed reducer; It is in the external stability of said braking positioning element second end and this braking positioning element, so that this brake disc contacts with said friction plate or separates when said braking positioning element axially slides in the passage of said band tooth output shaft end.
12. motor brake as claimed in claim 11 is characterized in that first end of said braking positioning element has axial passage, this passage is axially arranged with pressure spring.
13. motor brake as claimed in claim 12 is characterized in that, in the passage of said band tooth output shaft end, is provided with many steel balls between the vias inner walls of said braking positioning element first end outer wall and said band tooth output shaft end.
14. motor brake as claimed in claim 11 is characterized in that second end of said braking positioning element has spiral concave surface and boss, said motor output shaft has the spiral end face that cooperates with said spiral concave surface and boss.
15. motor brake as claimed in claim 11 is characterized in that said motor output shaft has spiral concave surface and boss, second end of said braking positioning element has the spiral end face that cooperates with said spiral concave surface and boss.
16. motor brake as claimed in claim 11 is characterized in that second end of said braking positioning element cooperates with the output shaft of said drive unit through clutch shaft.
17. motor brake as claimed in claim 16 is characterized in that second end of said braking positioning element has spiral concave surface and boss,
First end of said clutch shaft has the spiral end face that cooperates with said spiral concave surface and boss, and second end is connected with the output shaft of said drive unit.
18. motor brake as claimed in claim 16 is characterized in that first end of said clutch shaft has spiral concave surface and boss, second end is connected with the output shaft of said drive unit,
Second end of said braking positioning element has the spiral end face that cooperates with said spiral concave surface and boss.
19. like claim 17 or 18 described motor brakes, it is characterized in that having key portion on the said drive unit output shaft, second end of said clutch shaft has the keyway that cooperates with this key portion,
Perhaps
Second end of said clutch shaft has key portion, has the keyway that cooperates with this key portion on the said drive unit output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056084.7A CN102678887B (en) | 2011-03-07 | 2011-03-07 | Reducer and motor brake thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056084.7A CN102678887B (en) | 2011-03-07 | 2011-03-07 | Reducer and motor brake thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678887A true CN102678887A (en) | 2012-09-19 |
| CN102678887B CN102678887B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110056084.7A Active CN102678887B (en) | 2011-03-07 | 2011-03-07 | Reducer and motor brake thereof |
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| CN (1) | CN102678887B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539088A (en) * | 2015-01-24 | 2015-04-22 | 深圳城邦机电工业有限公司 | Gear reducer motor |
| CN105119417A (en) * | 2015-09-16 | 2015-12-02 | 宁波市镇海甬亚机电科技有限公司 | Tubular motor |
| CN105125384A (en) * | 2015-09-22 | 2015-12-09 | 谷林电器(深圳)有限公司 | Sliding and rotation transmission mechanism used in walk assisting device and walk assisting device |
| CN105546099A (en) * | 2016-01-26 | 2016-05-04 | 张立 | Industrial speed reducer |
| CN105917133A (en) * | 2013-12-06 | 2016-08-31 | 卢卡斯汽车股份有限公司 | Motor vehicle brake which can be activated electromechanically and hydraulically and has optional self-locking |
| CN109114204A (en) * | 2018-09-10 | 2019-01-01 | 奇瑞商用车（安徽）有限公司 | Commercial wheel side reducer shell |
| CN109139873A (en) * | 2018-09-10 | 2019-01-04 | 奇瑞商用车（安徽）有限公司 | The commercial wheel side reducer shell of integrated caliper brake disc installation |
| EP3444156A1 (en) * | 2013-11-12 | 2019-02-20 | Lucas Automotive GmbH | Motor vehicle brake with self-locking device |
| CN109571188A (en) * | 2018-11-14 | 2019-04-05 | 浙江携腾机械科技有限公司 | Speed reducer torque running-in tooling |
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| CN2260197Y (en) * | 1996-05-08 | 1997-08-20 | 徐民雄 | Electromagnetic braking and gear reduction electric motor |
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| CN2260197Y (en) * | 1996-05-08 | 1997-08-20 | 徐民雄 | Electromagnetic braking and gear reduction electric motor |
| WO1997048176A1 (en) * | 1996-05-31 | 1997-12-18 | Fhp Elmotor Ab | Braking system for electric motors |
| GB2324127A (en) * | 1997-04-11 | 1998-10-14 | Electrolux Outdoor Prod Ltd | Brake assembly for a powered rotary tool e.g. a lawnmower or a hedge trimmer |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3444156A1 (en) * | 2013-11-12 | 2019-02-20 | Lucas Automotive GmbH | Motor vehicle brake with self-locking device |
| CN105917133A (en) * | 2013-12-06 | 2016-08-31 | 卢卡斯汽车股份有限公司 | Motor vehicle brake which can be activated electromechanically and hydraulically and has optional self-locking |
| CN105917133B (en) * | 2013-12-06 | 2018-11-02 | 卢卡斯汽车股份有限公司 | It electromechanically and hydraulically can be activated and have the motor vehicle brake of optional self-locking |
| CN104539088A (en) * | 2015-01-24 | 2015-04-22 | 深圳城邦机电工业有限公司 | Gear reducer motor |
| CN105119417A (en) * | 2015-09-16 | 2015-12-02 | 宁波市镇海甬亚机电科技有限公司 | Tubular motor |
| CN105119417B (en) * | 2015-09-16 | 2017-11-21 | 宁波市镇海甬亚机电科技有限公司 | A kind of tube shaped electric machine |
| CN105125384A (en) * | 2015-09-22 | 2015-12-09 | 谷林电器(深圳)有限公司 | Sliding and rotation transmission mechanism used in walk assisting device and walk assisting device |
| CN105125384B (en) * | 2015-09-22 | 2017-04-19 | 谷林电器(深圳)有限公司 | Sliding and rotation transmission mechanism used in walk assisting device and walk assisting device |
| CN105546099A (en) * | 2016-01-26 | 2016-05-04 | 张立 | Industrial speed reducer |
| CN109139873A (en) * | 2018-09-10 | 2019-01-04 | 奇瑞商用车（安徽）有限公司 | The commercial wheel side reducer shell of integrated caliper brake disc installation |
| CN109114204A (en) * | 2018-09-10 | 2019-01-01 | 奇瑞商用车（安徽）有限公司 | Commercial wheel side reducer shell |
| CN109114204B (en) * | 2018-09-10 | 2022-03-11 | 奇瑞商用车（安徽）有限公司 | Commercial vehicle wheel reduction gear shell |
| CN109571188A (en) * | 2018-11-14 | 2019-04-05 | 浙江携腾机械科技有限公司 | Speed reducer torque running-in tooling |
| CN109571188B (en) * | 2018-11-14 | 2019-11-01 | 浙江携腾机械科技股份有限公司 | Speed reducer torque running-in tooling |
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| Publication number | Publication date |
|---|---|
| CN102678887B (en) | 2015-02-25 |
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