CN103322088A - Automatic locking mechanism for tooth-shaped revolving shaft - Google Patents
Automatic locking mechanism for tooth-shaped revolving shaft Download PDFInfo
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- CN103322088A CN103322088A CN2013102024701A CN201310202470A CN103322088A CN 103322088 A CN103322088 A CN 103322088A CN 2013102024701 A CN2013102024701 A CN 2013102024701A CN 201310202470 A CN201310202470 A CN 201310202470A CN 103322088 A CN103322088 A CN 103322088A
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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, be used for the locking of automatic rotary equipment rotating shaft.
Background technique
In the automatic rotary equipment such as many automatic turntables of domestic production, auto-leveling mechanism or automatic rotating detector, no matter be indoor equipment or mobile unit, in test or using process, all want countershaft to carry out auto lock, to satisfy the needs of automatic flow in the working procedure.
The domestic rotating shaft locking mode of commonly using 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 these several modes, lock such as axle hung type, mainly be to utilize the structural principle countershaft of brake block to hold tightly, opening or lock by motor pulling force control brake block, the advantage of this mechanism is to take up room littlely, is easy to install to adjust, and shortcoming is whole mechanism locking property poor reliability, and need regularly to adjust the Locking Steel Wire rope, use push away protect comparatively loaded down with trivial details.Bolt-type locking mechanism mainly is spring pin accurately to be inserted in the locking hole of rotating part by motor, 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.The electromagnetic clutch locking mainly is the principle of utilizing magnetic clutch, a magnetic clutch is installed between rotating shaft and pedestal, reach the purpose of locking or release by the power on/off of whole electromagnetic clutch locking mechanism, the advantage of this mechanism be construction cost low, simple in structure, take up room little, the electromagnetic field that shortcoming produces when being the work of whole mechanism is larger, equipment there is larger electromagnetic interference, on around electronic device works the time larger impact arranged, this locking mechanism also can't carry out electromagnetic shielding fully simultaneously.The end tooth disc type mainly is at projecting shaft the pair of end fluted disc to be installed, and countershaft is locked vertically, and the advantage of this mechanism is reliable lock, and the locked position precision is high, and shortcoming is axially to take up room greatly, and processing cost is high.
Summary of the invention
The purpose of this invention is to provide a kind of profile of tooth revolution automatic locking mechanism, solve in the existing automatic rotary equipment, the problem that locking mechanism of rotating shaft exists, this locking mechanism is radially locked along rotating shaft, axially take up room little, cost is low, reliable lock, the normal operation of not impact equipment.
Technological scheme of the present invention: a kind of profile of tooth turning axle automatic locking mechanism of the present invention comprises turning axle, the toothed shank of coaxial line is installed at turning axle, have on the latch with toothed shank on the locking teeth of tooth coupling, the latch head end is hinged on the turning axle supporting frame, the control handle of latch is connected on the locking control mechanism, the axle tooth of locking teeth and toothed shank is followed the meshing relation positioned opposite, the locking control mechanism comprises the fixed base on the top that is installed in the 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, linear electric motor are installed in the control handle bottom, the output terminal of linear electric motor is aimed at the control handle bottom, in the bottom of the spring mounting hole of fixed base adjusting screw and locking nut is 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 made as: spring is in the raw the time, the engagement of the axle tooth of the locking teeth of latch and toothed shank, 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 the vertical direction distance.
Technique effect of the present invention: the present invention is by the work of linear electric motor, makes upwards compression of spring, makes profile of tooth on toothed shank and the latch from engagement to the complete disengaged position of closing, thereby realizes that locking mechanism is locked or the conversion of released state.Whole profile of tooth revolution automatic locking mechanism total thickness can be controlled in the 30mm, and 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 release conversion are convenient and swift, the normal operation of not impact equipment; Can solve the problems such as functional reliability is poor in the existing several automatic rotary locking mechanism, space hold is large, electromagnetic interference is large.The present invention is applicable in the automatic rotary equipment such as automatic turntable, auto-leveling mechanism or automatic rotating detector, also is applicable to upgrading, miniaturization, the technological improvement of this kind equipment simultaneously, has preferably using value and popularizing prospect.
Description of drawings
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 release schematic diagram of the present invention.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1～Fig. 3 is one embodiment of the present of invention.
The present embodiment is installed on the vehicle-mounted auto-leveling mechanism, the auto lock of levelling gear rotating shaft when being used for transportation, and the maximum flywheel moment of rotating shaft is 30Nm, and the locking minimum angles is 15 °, and the locked position precision is ± 10 '.
Such as Fig. 1, Fig. 2, shown in Figure 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 is installed coaxial line at turning axle toothed shank 1, have on the latch 2 with toothed shank 1 on the locking teeth 2a of tooth coupling, latch 2 head end 2b are hinged on the turning axle supporting frame, the control handle 2c of latch 2 is connected on the locking control mechanism 3, the axle tooth 1a of locking teeth 2a and toothed shank 1 follows the meshing relation positioned opposite, locking control mechanism 3 comprises the fixed base 3a on the top that is installed in latch 2 control handle 2c, the 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, linear electric motor 3c is installed in control handle 2c bottom, the output terminal of linear electric motor 3c is aimed 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.
At first calculating in this example and the design parameter of definite toothed shank 1, mainly is boundary dimension, profile of tooth and the number of teeth of toothed shank 1, again according to the dimensional parameters of toothed shank 1 all the other structures of design, in the designing requirement of the present embodiment, the locked position precision prescribed is not high, can adopt lower-cost stepped tooth, according to the locked position requirement, the material selection 40Cr of toothed shank 1, calculate and check through intensity, the toothed shank standard pitch diameter is 60mm, and selecting the number of teeth is 24, rotating shaft all can be locked every 15 °
Toothed shank 1 among the present invention is circular, and endoporus is processed into square hole, carries out transition fit with the rotating shaft A of turning round equipment, carries out locking with junction of the edges of two sheets of paper screw again; Latch 2 is " second " font, the locking teeth 2a of latch 2 is stepped tooth, the number of teeth is that 2～5 teeth are individual, preferred 3, consistent with the tooth profile parameter of toothed shank 1, match with toothed shank 1 after the assembling, latch 2 can 4 rotate along shipping and reselling on another market, the diameter of spring 3b is φ 2mm, and pretightening force is 10N, and 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 and toothed shank 1 meshed, and the profile of tooth by each other meshes to reach the locking purpose, adjusting screw 3d is on fixed base 3a top, the pretightening force of adjustable springs 3b after adjusting screw 3d has adjusted, is locked adjusting screw 3d with locking nut 3e.
Original state is made as: spring 3b is in the raw the time, the axle tooth 1a of the locking teeth 2a of latch 2 and toothed shank 1 engagement, 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, and maximum thrust 45N is installed in latch 2 bottoms.When the needs release, by the work of linear electric motor 3c, with upwards compression of spring 3b, make profile of tooth on toothed shank 1 and the latch 2 from engagement to the complete disengaged position of closing, thereby realize the conversion of locking mechanism locking or released state, such as Fig. 2, shown in Figure 3.Linear electric motor are in the latch bottom, by the work of linear electric motor, make upwards compression of spring, make profile of tooth on toothed shank and the latch from engagement to the complete disengaged position of closing, thereby realize that locking mechanism is locked or the conversion of released state.Whole profile of tooth revolution automatic locking mechanism total thickness can be controlled in the 30mm, and 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 the 40Cr materials processings, spring 3b adopts 65Mn to process, remaining parts adopts 45# to process.
In when design, locking torque is greater than 1.5 times maximum flywheel moment.Power of motor is reserved 2 times of safety coefficient.
Toothed shank among the present invention is installed on the rotating shaft A of required locking, and remaining parts all is installed on the fixed frame B with rotating shaft.
The present invention carried out 2000Km transport test and up to a hundred locking, the test of release workflow, locking mechanism reliable working operation with equipment after the assembling of vehicle-mounted two axle auto-leveling mechanisms.
Toothed shank 1 endoporus among 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 is carried out design modifying according to required coupling mechanism force size and locking desired position precision, the positional accuracy of the coupling mechanism force of toothed shank 1 and rotating shaft locking is inversely proportional to, toothed shank 1 number of teeth is directly proportional with rotating shaft locked position precision, profile of tooth on the toothed shank 1 is processed into involute when the locked position precision is higher, be processed into stepped tooth when the 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 the assembling, latch 2 can 4 rotate along shipping and reselling on another market of toothed shank 1 one sides, profile of tooth on profile of tooth during rotation on the latch 2 and the toothed shank 1 does not interfere, and mainly is that latch 2 is stressed with toothed shank 1 contacted 2～5 teeth during locking.The fixed seating is in toothed shank 1 the other end upside, with screw fastening on fixed base 3a, spring 3b one end is placed in the fixed base endoporus, the other end is connected to the control handle 2c top of latch, by spring force latch 2 and toothed shank 1 is meshed, and the profile of tooth by each other meshes to reach the locking purpose, adjusting screw 3d is on fixed base top, the pretightening force of adjustable springs, after adjusting screw had been adjusted, 3e locked adjusting screw with locking nut.Linear electric motor 3c is in latch 2 bottoms, by the work of linear electric motor 3c, makes upwards compression of spring 3b, makes profile of tooth on toothed shank 1 and the latch 2 from engagement to the complete disengaged position of closing, thereby realizes the conversion of locking mechanism locking or released state.Whole profile of tooth revolution automatic locking mechanism total thickness can be controlled in the 30mm, and 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. profile of tooth turning axle automatic locking mechanism, comprise turning axle, it is characterized in that: the toothed shank (1) that coaxial line is installed at turning axle, have on the latch (2) with toothed shank (1) on the locking teeth (2a) of tooth coupling, latch (2) head end (2b) is hinged on the turning axle supporting frame, the control handle (2c) of latch (2) is connected on the locking control mechanism (3), locking teeth (2a) is followed the meshing relation positioned opposite with the axle tooth (1a) of toothed shank (1), locking control mechanism (3) comprises the fixed base (3a) on the top that is installed in latch (2) control handle (2c), 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), linear electric motor (3c) are installed in control handle (2c) bottom, the output terminal of linear electric motor (3c) is aimed 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.
2. profile of tooth turning axle automatic locking mechanism according to claim 1, it is characterized in that: the 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 is characterized in that: the locking teeth (2a) of latch (2) is stepped tooth, and 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, it is characterized in that: the diameter of spring (3b) is φ 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 made as: spring (3b) is in the raw the time, the locking teeth (2a) of latch (2) and the engagement of the axle tooth (1a) of toothed shank (1), 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 revolution 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 1/2～1/4 of toothed shank (1) diameter in the 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103322088A true CN103322088A (en) | 2013-09-25 |
| CN103322088B 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 (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179917A (en) * | 2014-08-15 | 2014-12-03 | 湖北三江航天万峰科技发展有限公司 | Differential gear rotation limiting mechanism |
| CN105007012A (en) * | 2015-07-16 | 2015-10-28 | 湖北三江航天万峰科技发展有限公司 | On-vehicle turntable control system and control method thereof |
| 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 |
| 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 |
| CN107725642A (en) * | 2017-09-13 | 2018-02-23 | 深圳市卓博机器人有限公司 | Motor power-off brake device and motor |
| CN107826714A (en) * | 2017-12-04 | 2018-03-23 | 中山市榄商置业发展有限公司 | A kind of automatic displacement locking device on motion table top |
| CN107934410A (en) * | 2017-11-07 | 2018-04-20 | 湖北三江航天万峰科技发展有限公司 | A kind of Dual-spindle linked retaining mechanism |
| CN108131402A (en) * | 2016-11-30 | 2018-06-08 | 北京航天计量测试技术研究所 | A kind of two-way memory alloy locking device |
| US20220025700A1 (en) * | 2020-07-24 | 2022-01-27 | Aero Industries, Inc. | Cover System For Open-Topped Containers |
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| US3642100A (en) * | 1970-05-22 | 1972-02-15 | Gen Motors Corp | Pawl parking brake with toggle apply linkage |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179917A (en) * | 2014-08-15 | 2014-12-03 | 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 |
| CN105007012A (en) * | 2015-07-16 | 2015-10-28 | 湖北三江航天万峰科技发展有限公司 | On-vehicle turntable control system and control method thereof |
| 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 |
| CN108131402A (en) * | 2016-11-30 | 2018-06-08 | 北京航天计量测试技术研究所 | A kind of two-way memory alloy locking 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 |
| CN107725642A (en) * | 2017-09-13 | 2018-02-23 | 深圳市卓博机器人有限公司 | Motor power-off brake device and motor |
| 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 |
| CN107934410A (en) * | 2017-11-07 | 2018-04-20 | 湖北三江航天万峰科技发展有限公司 | A kind of Dual-spindle linked retaining mechanism |
| 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 |
| CN107826714A (en) * | 2017-12-04 | 2018-03-23 | 中山市榄商置业发展有限公司 | A kind of automatic displacement locking device on motion table top |
| 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 |
| US20220025700A1 (en) * | 2020-07-24 | 2022-01-27 | Aero Industries, Inc. | Cover System For Open-Topped Containers |
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| CN103322088B (en) | 2015-05-06 |
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