CN100566080C - Overload protector of tubular motor - Google Patents
Overload protector of tubular motor Download PDFInfo
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- CN100566080C CN100566080C CNB2007100666629A CN200710066662A CN100566080C CN 100566080 C CN100566080 C CN 100566080C CN B2007100666629 A CNB2007100666629 A CN B2007100666629A CN 200710066662 A CN200710066662 A CN 200710066662A CN 100566080 C CN100566080 C CN 100566080C
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- steel ball
- ball seat
- level planetary
- hole
- motor
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Abstract
A kind of overload protector of tubular motor; cooperate institute to constitute with steel ball seat by the internal tooth block set that has two or more splines to constitute on the inner peripheral wall of third-level planetary support upper end; the through hole that has two or more and spline to mate on the described steel ball seat; and spring, steel ball are installed in the through hole, described steel ball seat is connected with third-level planetary support output shaft.This protector structure is simple, compact; easily processing and fabricating, installation volume are little; make full use of the third-level planetary support in original planetary transmission; and need not change the structure and the volume of original tube shaped electric machine; can extensively in existing tube shaped electric machine, install and use; when tube shaped electric machine during because of the work of a variety of causes overload; steel ball seat is skidded and is not rotated with the third-level planetary support; output shaft is also stopped operating; overload torque can not be sent to motor, thus protected motor and the outside support device that links together with it injury-free.
Description
Technical field
The present invention relates to a kind of protector, particularly when tube shaped electric machine is worked, can not only guarantee each parts in the tube shaped electric machine under overload situations, and can also make the injury-free and overload protector of tubular motor of use of outside supporting various devices with it.
Background technology
Progress along with rapid economy development and scientific and technological cause; simultaneously also driven every profession and trade to modernization; automation direction strides forward; tube shaped electric machine now not only extensively is used in rolling screen door; window; sunshade; large-scale garage; in the shop; also use motor bus gradually; pleasure-boat; the power of making electrically driven curtain in traffic transport industry or office and the average family uses; but also there is not overload protective device in the existing tube shaped electric machine that uses; therefore work as tube shaped electric machine when mounted if motor range does not set; or curtain is colluded card accidentally the stall phenomenon will be taken place in the rolling use; can not rotate; but at this moment motor still continues the energising rotation and is to overcome bigger resistance; in case the electric current that flows through as the direct current machine stall will be multiplied; the motor outputting torsion also can increase exponentially; burn so very easily cause the stall motor overload; also can tear up cord simultaneously or rotating shaft is severed; bring great loss to the user, and use dangerous.
Patent No. CN01203055.4 " motor drive of electrically driven curtain " is though also provide a kind of measure that prevents motor to burn because of overload, but its complex structure, the cost height, adopted a lot of electronic circuits, drive circuit, the control motor that comprises CD-ROM drive motor stops and the controller of forward and backward and current-limiting circuit, overload detection circuit, output current with the detectability current circuit shuts down motor, reaches the purpose of preventing motor overload and burning.
Patent No. CN99255485.3 " a kind of overload trip device of automatic curtain brake "; it is be equipped with coaxial two between the universal driving shaft spare of the gear train of brake inside before; back magnetic is to inhaling wheel; and to inhaling the outer end installation gear of wheel; preceding magnetic is to the output gear engagement of gear on the suction wheel and motor; back magnetic is to inhaling gear and the engagement of moving spool output gear on the wheel; motor power is inhaled the wheel coaxial rotation through two pairs; be transferred to moving spool volume and put curtain; when transshipping because of various reasons; inhaling wheel for two pairs just produces relative rotation; thereby the load that makes spool can not be delivered to and protect motor in the motor; simultaneously when the overload situation takes place; electric current on the solenoid is excessive; relatively control the power supply that cuts off motor through control circuit, also protected motor, but this device had both been used the mechanical protection structure; electronic circuit control is arranged, complex structure again; the manufacturing cost height.
Summary of the invention
Technical problem to be solved by this invention is: a kind of overload protector of tubular motor is provided; it is simple in structure, compact, volume is little; make easy for installation; except that each parts in the tube shaped electric machine and each device supporting with it are shielded; when fault is eliminated back auto restore facility in addition, low cost of manufacture, practicality are good.
The present invention addresses the above problem the technical scheme that is adopted: overload protector of tubular motor; by the internal tooth block set that has two or more splines to constitute on the inner peripheral wall of third-level planetary support upper end with on have two or more and spline to mate through hole; and be equipped with in the through hole steel ball seat that spring, steel ball constitute cooperate constitute, described steel ball seat is connected with third-level planetary support output shaft.
Compared with prior art; the invention has the advantages that; this overload protective device utilizes the third-level planetary support in the planetary gear reduction box in the former tube shaped electric machine; only process the internal tooth block set of two or more splines in the top on the inner peripheral wall; increase a steel ball seat again; the through hole that has two or more and spline to mate on the steel ball seat; and spring is installed in the through hole; steel ball; steel ball seat is pressed in the internal tooth block set of third-level planetary support upper end; under driven by motor, rotate, and the output shaft that links together with it is rotated by steel ball seat with the third-level planetary support.It is simple in structure; compact, easily processing and fabricating, installation; volume is little; the vacant useful space of steel ball seat; make the structure of original planetary transmission and volume not do big variation and be fully used; and processing cost is low; so can in existing tube shaped electric machine, apply and install this overload protective device additional; need not change the structure of original tube shaped electric machine and the purpose that volume just can reach safe handling; each parts in the tube shaped electric machine can be guaranteed, and the outside supporting injury-free destruction of various devices can also be made with it.When the fault elimination, when rotating torque reaches normal value, overload protective device also has auto restore facility, recovers operate as normal.
Description of drawings
Fig. 1, the present invention put into the exploded view of tube shaped electric machine reduction box.
The structural representation of Fig. 2, third-level planetary support.
The left view of Fig. 3, Fig. 2.
The structural representation of Fig. 4, steel ball seat.
Fig. 5, structural representation of the present invention (being installed in overload in the tube shaped electric machine reduction box).
The A-A cutaway view of Fig. 6, Fig. 5.
Fig. 7, structural representation of the present invention (being installed in normal condition in the tube shaped electric machine reduction box).
The B-B cutaway view of Fig. 8, Fig. 7.
Fig. 9, alternative plan structural representation of the present invention (being installed in overload in the tube shaped electric machine reduction box).
The C-C cutaway view of Figure 10, Fig. 9.
Figure 11, alternative plan structural representation of the present invention (being installed in normal condition in the tube shaped electric machine reduction box).
The D-D cutaway view of Figure 12, Figure 11.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described.
On the periphery of the third-level planetary support 3 upper end inwalls in original tubulose motor planetary gear reduction box, process two or more uniform splines 10 as required, there is a blind hole 11 to constitute the internal tooth block set on the bottom surface of inwall, the lower end with the same originally be three planet axis, four uniform splines 10 are arranged, as Fig. 2, shown in Figure 3 on the internal tooth block set 12.
Two through holes are arranged on the steel ball seat 5, be distributed in along in two planes of the different axial locations of cylindrical steel ball seat, the through hole 13 on each plane and through hole 14 are orthogonal but do not communicate, as Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8.
Steel ball seat 5 ' on two through holes 13 that spring 6 steel balls 4 are installed, be distributed in two planes parallel to each other, as Fig. 9, Figure 10, Figure 11, shown in Figure 12.
Put into place, spring 6, two apertures in through hole 13, through hole 14 or the two through hole 13 respectively and put into steel ball 4.
With the steel ball seat 5 or 5 that assembles ' be pressed in the internal tooth block set 12 of third-level planetary support 3 upper ends, third-level planetary wheel 2 is installed on the planet axis of third-level planetary support 3, to have steel ball seat 5 or 5 ' third-level planetary support 3 be installed in the shell 1 of planetary gear reduction box, with the secondary in the reduction box, one-level planetary gear engaged transmission, and bearing pedestal 7 is installed on the port of shell 1, third-level planetary support output shaft 9 utilizes the open slot 8 on its termination, be clamped at steel ball seat 5 or 5 ' long boss 8 ' on, it is in aggregates that itself and third-level planetary support 3 are fixed, along with third-level planetary wheel 2 rotates together.
The one-level sun gear power shaft of gearbox one end is connected (figure draws) by connector with motor in the tube shaped electric machine, and be installed in together in the motor outer tube 15, gearbox end in addition utilizes bearing pedestal 7 usefulness screws also to be fixed on the motor outer tube 15, and the pipe of third-level planetary support output shaft 9 and installation cord all is connected (figure draws) on the runner.
During use, power turn-on, motor rotates the one-level sun gear that drives in the gearbox and rotates, speed change is rotated also transmission, deceleration to the third-level planetary gear 2 on the third-level planetary support one by one, again by assembling complete steel ball seat and, driving cord scrolling up and down through runner again through third-level planetary support output shaft 9 output slow-speed of revolution moments.
When if tube shaped electric machine is installed; just opened mains switch when also not regulating the stroke high and low position earlier; or curtain is colluded card accidentally stall will be taken place in the rolling use; overload situations; at this moment motor is still rotating always; but the steel ball seat 5 or 5 that links together with third-level planetary support output shaft 9 ' just after rotating an angle under the effect of overload torque; the steel ball 4 stressed through holes 13 that push back; in through hole 14 or the two through hole 13; steel ball seat 5 or 5 ' skid is not rotated with third-level planetary support 3; thereby protected the casement that links together with it; runner does not rotate, and having avoided the damage of parts and motor is to overcome resistance to strengthen the accident that the electric current that flows through makes burn-down of electric motor.After fault is eliminated; motor drives the steel ball seat 5 or 5 ' angle of rotation in the overload protective device again; steel ball 4 is ejected with spline 10 under spring 6 effects and contacts; internal tooth block set 12 interference fits on steel ball seat 5 or 5 ' again and the third-level planetary support 3; under the drive of motor,, make curtain normally open and close work again through 9 transmissions of third-level planetary support output shaft.
Claims (4)
1, a kind of overload protector of tubular motor; it is characterized in that by the internal tooth block set (12) that has two or more splines (10) to constitute on the inner peripheral wall of third-level planetary support (3) upper end cooperate with steel ball seat constitute; the through hole that has two or more and spline (10) to mate on the described steel ball seat; and spring (6), steel ball (4) are installed in the through hole, described steel ball seat is connected with third-level planetary support output shaft (9).
2, overload protector of tubular motor according to claim 1 is characterized in that on the inner peripheral wall of the internal tooth block set (12) on the described third-level planetary support (3) four splines (10) being arranged, and a blind hole (11) is arranged on the bottom surface of inwall.
3, overload protector of tubular motor according to claim 1; it is characterized in that described steel ball seat (5) is for cylindrical; one boss platform (11 ') is arranged in the middle of the lower surface; one long boss (8 ') is arranged in the middle of the upper surface; first through hole (13) and second through hole (14) that spring (6) and steel ball (4) are installed are arranged on the described steel ball seat (5); first and second through hole (13,14) is positioned at different planes vertically, and first and second through hole (13,14) is orthogonal but do not communicate.
4; overload protector of tubular motor according to claim 1; it is characterized in that described steel ball seat (5 ') is for cylindrical; one boss platform (11 ') is arranged in the middle of the lower surface; one long boss (8 ') is arranged in the middle of the upper surface; two through holes that are parallel to each other but do not communicate (13) that spring (6) and steel ball (4) are installed are arranged on the described steel ball seat (5 '); two through holes are positioned at different planes vertically; described steel ball seat (5 ') is pressed in the internal tooth block set (12) on the described third-level planetary support (3), open slot (8) tight fit on the long boss (8 ') on the steel ball seat (5 ') and the third-level planetary support output shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100666629A CN100566080C (en) | 2007-01-10 | 2007-01-10 | Overload protector of tubular motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100666629A CN100566080C (en) | 2007-01-10 | 2007-01-10 | Overload protector of tubular motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101030715A CN101030715A (en) | 2007-09-05 |
| CN100566080C true CN100566080C (en) | 2009-12-02 |
Family
ID=38715855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100666629A Active CN100566080C (en) | 2007-01-10 | 2007-01-10 | Overload protector of tubular motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100566080C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255438B (en) * | 2011-07-11 | 2013-11-06 | 宁波杜亚机电技术有限公司 | Tubular motor resistance-encountering detection device |
| CN103733781B (en) * | 2013-12-24 | 2016-08-17 | 华南农业大学 | A kind of grain feed with safety guard |
| CN107060625B (en) * | 2017-06-06 | 2023-02-03 | 雷振邦 | Built-in roller shutter driving device |
| CN107323523B (en) * | 2017-07-24 | 2023-03-28 | 广东电网有限责任公司电力科学研究院 | Electromechanical combined steering limiting device |
| CN110847795B (en) * | 2018-04-27 | 2020-10-30 | 新昌县陆恒机械有限公司 | Intelligent curtain driving mechanism |
| CN108869681B (en) * | 2018-08-28 | 2023-11-10 | 宁波智启机电有限公司 | Tubular motor reduction gearbox with protection mechanism |
| CN111313603B (en) * | 2020-01-20 | 2022-04-15 | 宁波市镇海甬亚机电科技有限公司 | Tubular motor |
| CN112701849B (en) * | 2020-12-21 | 2022-09-27 | 宁波智启机电有限公司 | Multistage split type tubular motor reducer |
-
2007
- 2007-01-10 CN CNB2007100666629A patent/CN100566080C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101030715A (en) | 2007-09-05 |
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Owner name: NINGBO DOOYA MECHANIC AND ELECTRONIC TECHNOLOGY CO Free format text: FORMER OWNER: SUN YIPEI Effective date: 20110511 |
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Free format text: CORRECT: ADDRESS; FROM: 315202 NINGBO DOOYA MECHANIC AND ELECTRONIC TECHNOLOGY CO., LTD., LEFT SIDEOF NATIONAL ROAD 329, TUANQIAO, ZHENHAI DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE TO: 315000 RONGJI ROAD, LUOTUO MECHANICAL AND ELECTRICAL PARK, ZHENHAI DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE |
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Effective date of registration: 20110511 Address after: The camel Park in Zhenhai District of Zhejiang Province in 315000 and Ningbo Rong Ji Lu Patentee after: Ningbo Dooya Mechanic and Electronic Technology Co., Ltd. Address before: 315202, Zhejiang, Ningbo Province, Zhenhai bridge, 329 National Road, left, Ningbo Du Ya Electrical Technology Co., Ltd. Patentee before: Sun Yipei |