CN103322088B - Automatic locking mechanism for tooth-shaped revolving shaft - Google Patents
Automatic locking mechanism for tooth-shaped revolving shaft Download PDFInfo
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- CN103322088B CN103322088B CN201310202470.1A CN201310202470A CN103322088B CN 103322088 B CN103322088 B CN 103322088B CN 201310202470 A CN201310202470 A CN 201310202470A CN 103322088 B CN103322088 B CN 103322088B
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Abstract
The invention discloses an automatic locking mechanism for a tooth-shaped revolving shaft. The automatic locking mechanism for the tooth-shaped revolving shaft comprises a revolving shaft; a tooth-shaped shaft is arranged on the revolving shaft in a coaxial line mode; a locking plate is provided with locking teeth which are matched with teeth of the tooth-shaped shaft; a locking plate head is connected on a supporting frame of the revolving shaft in a hinged mode; a control handle of the locking plate is connected to a locking control mechanism; the locking teeth and shaft teeth of the tooth-shaped shaft are correspondingly arranged according to meshing relationships; the locking control mechanism comprises a fixing seat which is arranged on the upper portion of the control handle of the locking plate; one end of a spring is fixed in a spring installation hole of the fixing seat; the other end of the spring is connected with the control handle; a linear motor is arranged on the lower portion of the control handle; an output end of the linear motor aligns to the lower portion of the control handle; and adjusting screws and locking nuts are arranged at the bottom of the spring installation hole of the fixing seat. A reference diameter of the tooth-shaped shaft is 60 mm and the number of the teeth is 24. The locking teeth of the locking plate are trapezoid-shaped teeth, the number of the teeth is 3, and other parameters are matched with shaft tooth parameters of the tooth-shaped shaft.
Description
Technical field
The invention belongs to mechanical field, be specifically related to a kind of profile of tooth revolution automatic locking mechanism, for the locking of automatic rotary equipment rotating shaft.
Background technique
Many automatic turntables of domestic production, auto-leveling mechanism or automatically in the automatic rotary equipment such as rotation measuring instrument, no matter be indoor equipment or mobile unit, in test or using process, all want countershaft to carry out auto lock, to meet the needs of automatic flow in working procedure.
Domestic rotating shaft locking mode comparatively conventional at present has axle hung type, bolt-type, electromagnetic clutch locking and end tooth disc type.In use all there are certain pluses and minuses in this several mode, as axle hung type locking, the structural principle countershaft of brake block is mainly utilized to hold tightly, opening or locking of brake block is controlled by motor pulling force, the advantage of this mechanism takes up room little, and be easy to mounting and adjusting, shortcoming is whole mechanism locking property poor reliability, and need regularly adjust Locking Steel Wire rope, use push away protect comparatively loaded down with trivial details.Spring pin is mainly accurately inserted in the locking hole of rotating part by motor by bolt-type locking mechanism, and this mechanism advantage is reliable lock, and shortcoming is that whole locking mechanism rate of fault is higher, and control system is complicated, and cost is high.Electromagnetic clutch locking mainly utilizes the principle of magnetic clutch, between rotating shaft and pedestal, a magnetic clutch is installed, by the object that the power on/off of whole electromagnetic clutch locking mechanism reaches locking or unlocks, the advantage of this mechanism is that construction cost is low, structure simple, it is little to take up room, the electromagnetic field produced when shortcoming is whole institution staff is larger, larger electromagnetic interference is had to equipment, have larger impact during electronic device works on surrounding, this locking mechanism also cannot carry out electromagnetic shielding completely simultaneously.End tooth disc type mainly installs pair of end fluted disc on projecting shaft, and countershaft is locked vertically, and the advantage of this mechanism is reliable lock, and locked position precision is high, and shortcoming axially takes up room greatly, and processing cost is high.
Summary of the invention
The object of this invention is to provide a kind of profile of tooth revolution automatic locking mechanism, solve in existing automatic rotary equipment, locking mechanism of rotating shaft Problems existing, this locking mechanism is locked along rotating shaft radial direction, axially take up room little, cost is low, reliable lock, do not affect equipment and normally work.
Technological scheme of the present invention: a kind of profile of tooth turning axle automatic locking mechanism of the present invention comprises turning axle, turning axle is installed the toothed shank of coaxial line, latch there is the locking teeth of mating with the tooth in toothed shank, latch head end is hinged on turning axle supporting frame, the control handle of latch is connected on locking control mechanism, it is positioned opposite that the axle tooth of locking teeth and toothed shank follows meshing relation, locking control mechanism comprises the fixed base on the top being arranged on latch control handle, one end of spring is fixed in the spring mounting hole of fixed base, the other end of spring is connected with described control handle, in control handle bottom, linear electric motor are installed, the output terminal of linear electric motor aims at control handle bottom, in the bottom of the spring mounting hole of fixed base, adjusting screw and locking nut are installed.
Described toothed shank standard pitch diameter is 60mm, and the number of teeth is 24.
The locking teeth of described latch is stepped tooth, and the number of teeth is 3, the axle tooth parameter matching of other parameter and toothed shank.
The diameter of described spring is φ 2mm, and pretightening force is 10N, and compression stroke is 15mm.
Described profile of tooth turning axle automatic locking mechanism, original state is set to: spring in the raw time, the locking teeth of latch engages with the axle tooth of toothed shank, and turning axle is in locking state.
Long L=80 ~ the 150mm of arm of force moment of described latch
Described profile of tooth turning axle automatic locking mechanism, whole profile of tooth revolution automatic locking mechanism total thickness H=25 ~ 30mm.
The hinging shaft axis of described latch and toothed shank axis are 1/2 ~ 1/4 of toothed shank diameter in vertical direction distance.
Technique effect of the present invention: the present invention, by the work of linear electric motor, makes spring upwards compress, makes the profile of tooth on toothed shank and latch from engagement to complete conjunction disengaged position, thus realizes the conversion of locking mechanism locking or released state.Within whole profile of tooth revolution automatic locking mechanism total thickness can be controlled in 30mm, shared axial dimension is less.During locking, linear electric motor do not stress, and rely on the compressive force of spring to carry out self-adapting locking.
Form structure of the present invention is compact, it is little to take up room, cost is low, assembling and convenient disassembly, reliable lock, locking unlock conversion convenient and swift, do not affect equipment and normally work; The problems such as functional reliability is poor, space hold is large, electromagnetic interference is large in existing several automatic rotary locking mechanism can be solved.The present invention is applicable to, in the automatic rotary equipment such as automatic turntable, auto-leveling mechanism or automatic rotation measuring instrument, also be applicable to the upgrading of this kind equipment, miniaturization, technological improvement simultaneously, have good using value and popularizing prospect.
Accompanying drawing explanation
Fig. 1 is turning axle locked position schematic diagram of the present invention
Fig. 2 is locking schematic diagram of the present invention (Fig. 1 left view).
Fig. 3 is unblock schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 ~ Fig. 3 is one embodiment of the present of invention.
The present embodiment is arranged on a vehicle-mounted auto-leveling mechanism, the auto lock of levelling gear rotating shaft during for transporting, and the maximum flywheel moment of rotating shaft is 30Nm, and locking minimum angles is 15 °, and locked position precision is ± 10 '.
As Fig. 1, Fig. 2, shown in Fig. 3, wherein A is the turning axle of required locking, B is the fixed frame of rotating shaft, a kind of profile of tooth revolution automatic locking mechanism of the present invention installs the toothed shank 1 of coaxial line on turning axle, latch 2 there is the locking teeth 2a mated with the tooth in toothed shank 1, latch 2 head end 2b is hinged on turning axle supporting frame, the control handle 2c of latch 2 is connected on locking control mechanism, it is positioned opposite that the axle tooth 1a of locking teeth 2a and toothed shank 1 follows meshing relation, locking control mechanism comprises the fixed base 3a on the control handle 2c top being arranged on latch 2, one end of spring 3b is fixed in the spring mounting hole of fixed base 3a, the other end of spring 3b is connected with described control handle 2c, in control handle 2c bottom, linear electric motor 3c is installed, the output terminal of linear electric motor 3c aims at control handle 2c bottom, in the bottom of the spring mounting hole of fixed base 3a, adjusting screw 3d and locking nut 3e is installed.
First calculate in this example and determine the design parameter of toothed shank 1, mainly the boundary dimension of toothed shank 1, profile of tooth and the number of teeth, then designing the dimensional parameters of all the other structures according to toothed shank 1, in the designing requirement of the present embodiment, locked position precision prescribed is not high, can adopt lower-cost stepped tooth, according to locked position requirement, the material selection 40Cr of toothed shank 1, through Strength co-mputation and check, toothed shank standard pitch diameter is 60mm, selects the number of teeth to be 24, rotating shaft all can be locked every 15 °
Toothed shank 1 in the present invention is circular, and endoporus is processed into square hole, carries out transition fit, then carry out locking with junction of the edges of two sheets of paper screw with the rotating shaft A of turning round equipment, latch 2 is " second " font, the locking teeth 2a of latch 2 is stepped tooth, the number of teeth is 2 ~ 5 teeth, preferably 3, consistent with the tooth profile parameter of toothed shank 1, match with toothed shank 1 after assembling, latch 24 can to rotate along shipping and reselling on another market, the diameter of spring 3b is φ 2mm, pretightening force is 10N, compression stroke is 15mm, one end is placed in the endoporus of fixed base 3a, the other end is on the control handle 2c top of latch 2, by spring force, latch 2 is engaged with toothed shank 1, by profile of tooth engagement each other to reach locking object, adjusting screw 3d is on fixed base 3a top, the pretightening force of adjustable springs 3b, after adjusting screw 3d has adjusted, with locking nut 3e, adjusting screw 3d is locked.
Original state is set to: spring 3b in the raw time, the locking teeth 2a of latch 2 engages with the axle tooth 1a of toothed shank 1, and turning axle is in locking state.
Whole profile of tooth revolution automatic locking mechanism total thickness H=20 ~ 30mm.
Linear electric motor 3c selects linear stepping motor, and range is 40mm, maximum thrust 45N, is arranged on latch 2 bottom.When needs unlock, by the work of linear electric motor 3c, spring 3b is upwards compressed, make toothed shank 1 and the profile of tooth on latch 2 from engagement to complete conjunction disengaged position, thus realize the conversion of locking mechanism locking or released state, as shown in Figure 2 and Figure 3.Linear electric motor, in latch bottom, by the work of linear electric motor, make spring upwards compress, and make the profile of tooth on toothed shank and latch from engagement to complete conjunction disengaged position, thus realize the conversion of locking mechanism locking or released state.Within whole profile of tooth revolution automatic locking mechanism total thickness can be controlled in 30mm, shared axial dimension is less.During locking, linear electric motor do not stress, and rely on the compressive force of spring to carry out self-adapting locking.
Ship and resell on another market in the present embodiment 4 and latch 2 adopt 40Cr materials processing, spring 3b adopt 65Mn process, remaining parts adopt 45# process.
When designing, the maximum flywheel moment that locking torque is greater than 1.5 times.Power of motor reserves 2 times of safety coefficient.
Toothed shank in the present invention is arranged on the rotating shaft A of required locking, and remaining parts is all arranged on the fixed frame B with rotating shaft.
After the present invention assembles on vehicle-mounted two axle auto-leveling mechanisms, carried out 2000Km transport test and up to a hundred locking with equipment, unlocked workflow test, locking mechanism reliable working operation.
Toothed shank 1 endoporus in the present invention and the rotating shaft of required locking adopt screw or interference fit to connect firmly, Excircle machining becomes a circle profile of tooth, the large I of profile of tooth carries out design modifying according to required coupling mechanism force size and locking desired position precision, the positional accuracy that the coupling mechanism force of toothed shank 1 and rotating shaft are locked is inversely proportional to, toothed shank 1 number of teeth is directly proportional to rotating shaft locked position precision, profile of tooth in toothed shank 1 is processed into involute when locked position precision is higher, is processed into stepped tooth when locked position required precision is not high.Latch 2 is " second " font, profile of tooth is processed in locking place, consistent with the profile of tooth of toothed shank 1, match with toothed shank 1 after assembling, latch 24 can to rotate along shipping and reselling on another market of toothed shank 1 side, profile of tooth in profile of tooth during rotation on latch 2 and toothed shank 1 does not interfere, and during locking, mainly 2 ~ 5 teeth that contact with toothed shank 1 of latch 2 are stressed.Fixed seating is on the upside of toothed shank 1 the other end, with screw fastening on fixed base 3a, spring 3b one end is placed in fixed base endoporus, the other end is connected to the control handle 2c top of latch, by spring force, latch 2 is engaged with toothed shank 1, by profile of tooth engagement each other to reach locking object, adjusting screw 3d is on fixed base top, the pretightening force of adjustable springs, after adjusting screw has adjusted, locks adjusting screw with locking nut 3e.Linear electric motor 3c, in latch 2 bottom, by the work of linear electric motor 3c, makes spring 3b upwards compress, and makes toothed shank 1 and the profile of tooth on latch 2 from engagement to complete conjunction disengaged position, thus realizes the conversion of locking mechanism locking or released state.Within whole profile of tooth revolution automatic locking mechanism total thickness can be controlled in 30mm, shared axial dimension is less.During locking, linear electric motor 3c does not work, and relies on the compressive force of spring 3b to carry out self-adapting locking.
Claims (8)
1. a profile of tooth turning axle automatic locking mechanism, comprise turning axle, it is characterized in that: the toothed shank (1) of installing coaxial line on turning axle, latch (2) there is the locking teeth (2a) of mating with the tooth in toothed shank (1), latch (2) head end (2b) is hinged on turning axle supporting frame, the control handle (2c) of latch (2) is connected on locking control mechanism, it is positioned opposite that locking teeth (2a) and the axle tooth (1a) of toothed shank (1) follow meshing relation, locking control mechanism comprises the fixed base (3a) on control handle (2c) top being arranged on latch (2), one end of spring (3b) is fixed in the spring mounting hole of fixed base (3a), the other end of spring (3b) is connected with described control handle (2c), in control handle (2c) bottom, linear electric motor (3c) are installed, the output terminal of linear electric motor (3c) aims at control handle (2c) bottom, in the bottom of the spring mounting hole of fixed base (3a), adjusting screw (3d) and locking nut (3e) are installed.
2. profile of tooth turning axle automatic locking mechanism according to claim 1, it is characterized in that: toothed shank standard pitch diameter is 60mm, the number of teeth is 24.
3. profile of tooth turning axle automatic locking mechanism according to claim 1 and 2, it is characterized in that: the locking teeth (2a) of latch (2) is stepped tooth, the number of teeth is 3, axle tooth (1a) parameter matching of other parameter and toothed shank (1).
4. profile of tooth turning axle automatic locking mechanism according to claim 1 and 2, is characterized in that: the diameter of spring (3b) is 2mm, and pretightening force is 10N, and compression stroke is 15mm.
5. profile of tooth turning axle automatic locking mechanism according to claim 1 and 2, it is characterized in that: original state is set to: spring (3b) in the raw time, the locking teeth (2a) of latch (2) engages with the axle tooth (1a) of toothed shank (1), and turning axle is in locking state.
6. profile of tooth turning axle automatic locking mechanism according to claim 1 and 2, is characterized in that: the long L=80 ~ 150mm of arm of force moment of latch (2).
7. profile of tooth turning axle automatic locking mechanism according to claim 1 and 2, is characterized in that: whole profile of tooth turning axle automatic locking mechanism total thickness H=25 ~ 30mm.
8. profile of tooth turning axle automatic locking mechanism according to claim 1 and 2, is characterized in that: rotating shaft (4) axis of latch (2) and toothed shank (1) axis are 1/4 ~ 1/2 of toothed shank (1) diameter in vertical direction distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202470.1A CN103322088B (en) | 2013-05-28 | 2013-05-28 | Automatic locking mechanism for tooth-shaped revolving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202470.1A CN103322088B (en) | 2013-05-28 | 2013-05-28 | Automatic locking mechanism for tooth-shaped revolving shaft |
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| Publication Number | Publication Date |
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| CN103322088A CN103322088A (en) | 2013-09-25 |
| CN103322088B true CN103322088B (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310202470.1A Active CN103322088B (en) | 2013-05-28 | 2013-05-28 | Automatic locking mechanism for tooth-shaped revolving shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11833956B2 (en) * | 2020-07-24 | 2023-12-05 | Aero Industries, Inc. | Cover system for open-topped containers |
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| CN104179917B (en) * | 2014-08-15 | 2017-02-08 | 湖北三江航天万峰科技发展有限公司 | Differential gear rotation limiting mechanism |
| CN105007012B (en) * | 2015-07-16 | 2017-12-15 | 湖北三江航天万峰科技发展有限公司 | A kind of vehicle-mounted rotating table control system and method |
| CN105508471A (en) * | 2015-12-01 | 2016-04-20 | 中国科学院长春光学精密机械与物理研究所 | Automatic locking device for rotating shaft |
| CN106064718A (en) * | 2016-08-09 | 2016-11-02 | 无锡德林船舶设备有限公司 | Automatic goods shelf power transmission shaft locking releasing device |
| CN108131402B (en) * | 2016-11-30 | 2024-04-12 | 北京航天计量测试技术研究所 | Double-way memory alloy locking device |
| CN107084214A (en) * | 2017-05-05 | 2017-08-22 | 中国科学院长春光学精密机械与物理研究所 | A kind of rotation preventive mechanism of rotary shaft |
| CN107725642B (en) * | 2017-09-13 | 2024-02-02 | 深圳市卓博机器人有限公司 | Motor outage brake equipment and motor |
| CN107934410B (en) * | 2017-11-07 | 2019-07-16 | 湖北三江航天万峰科技发展有限公司 | A kind of Dual-spindle linked retaining mechanism |
| CN107826714B (en) * | 2017-12-04 | 2019-10-18 | 台州市银点子知识产权服务有限公司 | A kind of automatic displacement locking device on movement table top |
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| US3642100A (en) * | 1970-05-22 | 1972-02-15 | Gen Motors Corp | Pawl parking brake with toggle apply linkage |
| US4719999A (en) * | 1985-10-30 | 1988-01-19 | Kabushiki Kaisha Daikin Seisakusho | Parking device for automatic transmission |
| CN202612444U (en) * | 2012-07-04 | 2012-12-19 | 崔作福 | Linkage brake lock for pumping unit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10101363C1 (en) * | 2001-01-13 | 2002-10-02 | Zf Sachs Ag | Parking lock actuation device for a parking lock device of a motor vehicle |
| JP4254332B2 (en) * | 2003-04-28 | 2009-04-15 | 株式会社日立製作所 | Electric disc brake device |
| DE102006022963A1 (en) * | 2006-05-12 | 2007-11-15 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | transmission lock |
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2013
- 2013-05-28 CN CN201310202470.1A patent/CN103322088B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642100A (en) * | 1970-05-22 | 1972-02-15 | Gen Motors Corp | Pawl parking brake with toggle apply linkage |
| US4719999A (en) * | 1985-10-30 | 1988-01-19 | Kabushiki Kaisha Daikin Seisakusho | Parking device for automatic transmission |
| CN202612444U (en) * | 2012-07-04 | 2012-12-19 | 崔作福 | Linkage brake lock for pumping unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11833956B2 (en) * | 2020-07-24 | 2023-12-05 | Aero Industries, Inc. | Cover system for open-topped containers |
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| CN103322088A (en) | 2013-09-25 |
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