CN105972122B - rotating shaft automatic locking mechanism - Google Patents
rotating shaft automatic locking mechanism Download PDFInfo
- Publication number
- CN105972122B CN105972122B CN201610416761.4A CN201610416761A CN105972122B CN 105972122 B CN105972122 B CN 105972122B CN 201610416761 A CN201610416761 A CN 201610416761A CN 105972122 B CN105972122 B CN 105972122B
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- Prior art keywords
- potentiometer
- sliding block
- shape cylinder
- tooth shape
- cylinder sliding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The rotating shaft automatic locking mechanism that the present invention designs, its lock bracket is provided with cylindrical hole, tooth shape cylinder sliding block is located in cylindrical hole by linear bearing, the front end of tooth shape cylinder sliding block is provided with breach, potentiometer sensing chip is set on breach, the rear end of tooth shape cylinder sliding block is provided with chute, stop nut is located in chute, the base of ram seat is fixed on tooth shape cylinder sliding block rear end, guide through hole is provided with ram seat, the front end of guiding screw pole is threadedly coupled through guide through hole and with stop nut, linear electric motors are fixedly connected by motor mount with the rear end of lock bracket, the power output shaft of linear electric motors is fixedly connected in coupling hole with guiding screw pole, one end of spring and the base of ram seat connect, the locating surface of the other end and motor mount connects；Potentiometer is fixed on lock bracket, and potentiometer sensing chip connects the induction end of potentiometer, the control signal input of the control signal output connection linear electric motors of potentiometer.Environmental suitability of the present invention is strong, compact-sized.
Description
Technical field
The present invention relates to machinery manufacturing technology field, in particular to a kind of rotating shaft automatic locking mechanism.
Technical background
In the automatic rotary equipment such as many automatic turntables, automatic rotary framework or the automatic rotary measuring instrument of domestic production,
Either indoor equipment or mobile unit, to be controlled the working condition of internal rotating shaft, all need to install in device interior
Automatic locking mechanism, during test or use will countershaft carry out auto lock, to meet to automate in the course of work
The needs of flow.
Domestic retaining mechanism more common at present has the retaining mechanisms such as bolt-type, axle hung type, end tooth disc type, this several ways
Certain advantage and disadvantage in use all be present, spring catch is mainly properly inserted by bolt-type locking mechanism by motor
In the locking hole of rotating part, this mechanism advantage is reliable lock, and shortcoming is that whole retaining mechanism space-consuming is big, control system
System is complicated, and cost is high.Axle hung type locking is mainly held tightly using the structural principle countershaft of brake block, passes through motor pulling force
Opening or the locking of brake block are controlled, is to occupy little space the advantages of this mechanism, is easily installed adjustment, shortcoming is whole mechanism
Locking property poor reliability, and need periodically to be adjusted locking steel wire rope, using pushing away, shield is relatively complicated.End tooth disc type locks machine
Structure is mainly to process the end face that a pair of high-precision fluted discs are separately mounted to turn round axial end and retaining mechanism, and utilization is intermeshing
Gear is locked, and is that the stability after locking is preferable the advantages of this mechanism, and reliability is high, and shortcoming is cost height, whole machine
Structure axial occupation space size is larger.
The main problem that the retaining mechanisms such as conventional bolt-type, axle hung type, end tooth disc type occur in use is：
Reliability is higher during short-period used, when being reused after such as long-term placement or vibration occur, impact, being reused after high/low temperature, reliably
Property can substantially reduce.Main cause is：Retaining mechanism is typically chronically at locking state, is just unlocked during work.This kind of machine
Structure is substantially moved using the screw thread pair in retaining mechanism, carries out self-locking by in-house screw thread pair during locking, by
Stress is chronically in the screw thread pair in retaining mechanism, after a period of time does not work, because of the temperature difference, Transport Vibration etc.
Reason, in-house screw thread pair can produce certain elasticity or plastic deformation, need to first overcome this deformed threads during unblock, so
Initial releasing force increase can be made more, so as to cause retaining mechanism to unlock insecure phenomenon, or even can not be used.
Also a kind of retaining mechanism of electromagnetic clutch type, it is mainly using the principle of electromagnetic clutch, in rotating shaft and seat
One electromagnetic clutch is installed between body, the mesh of locking or unblock is reached by the power on/off of whole electromagnetic clutch locking mechanism
, be the advantages of this mechanism reliable lock, it is simple in construction, occupy little space, shortcoming is electricity caused by whole mechanism work
Magnetic field is larger, there is larger electromagnetic interference to equipment, to having large effect, while this lock during the electronic device works of surrounding
Tight mechanism can not also carry out electromagnetic shielding completely.
The content of the invention
Present invention aim to provide a kind of rotating shaft automatic locking mechanism, the mechanism is radially locked along rotating shaft,
Environmental suitability is strong, it is compact-sized, occupy little space, reliable lock, do not influence equipment normal work.
In order to achieve this, the rotating shaft automatic locking mechanism designed by the present invention, it is characterised in that：It includes tooth shape cylinder
Sliding block, lock bracket, linear bearing, stop nut, guiding screw pole, ram seat, spring, motor mount, linear electric motors, current potential
Device sensing chip, potentiometer pressing plate and potentiometer, wherein, the lock bracket bosom position is provided with cylindrical hole, the tooth form
Cylinder sliding block is arranged in cylindrical hole by linear bearing, and the front end of tooth shape cylinder sliding block is provided with breach, and current potential is installed on breach
Device sensing chip, the front end face of tooth shape cylinder sliding block are provided with tooth, and the front end of lock bracket, tooth form are stretched out in the front end of tooth shape cylinder sliding block
The rear end of cylinder sliding block is provided with chute, and stop nut is arranged in chute, and the base of the ram seat is fixed on tooth shape cylinder cunning
The rear end face of block, ram seat is interior to be provided with guide through hole, and the front end of guiding screw pole connects through guide through hole and with stop nut screw thread
Connect, the base of ram seat is spacing to stop nut progress；
The housing of the linear electric motors is fixedly connected by motor mount with the rear end of lock bracket, in motor mount
Provided with coupling hole, the power output shaft of linear electric motors is fixedly connected in coupling hole with the bottom of guiding screw pole, linear electric motors
Power output shaft and guiding screw pole can move in coupling hole, and the base of one end of spring and ram seat connects, spring it is another
End is connected with the locating surface of motor mount；
The potentiometer is fixed on lock bracket by potentiometer pressing plate, and potentiometer sensing chip connects the sensing of potentiometer
End, the control signal input of the control signal output connection linear electric motors of potentiometer.
The rotating shaft automatic locking mechanism of the present invention is different from the working condition of conventional retaining mechanism, is in for a long time in mechanism
During locking, mainly locked by the spring force of inside, the screw thread pair in retaining mechanism is in free unstressed state.
When the retaining mechanism short time being in released state, spring force is overcome by motor pulling force, slides the tooth form on retaining mechanism
Block is departed from locking gear, so as to realize unblock.Because unlocked time is shorter, and maintain unblock required for time also compared with
Short, changes in environmental conditions is small in this time, thus can greatly improve the functional reliability of retaining mechanism.
Contour structures of the present invention are compact, occupy little space, cost is low, assembling and convenient disassembly, reliable lock, locking unblock
Change it is convenient and swift, do not influence equipment normal work；Can solve functional reliability in existing several automatic rotary locking mechanisms
Difference, the problems such as space hold is big, electromagnetic interference is big.The present invention is applied to automatic turntable, auto-leveling mechanism, automatic rotary framework
Or in the automatic rotary equipment such as automatic rotary measuring instrument, while the upgrading, miniaturization, technology that are also applied for this kind equipment change
Enter, there is preferable application value and promotion prospect.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of the present invention in one direction.
Fig. 2 is the cross section structure diagram of the present invention in the other directions.
Fig. 3 is the decomposing schematic representation of the present invention.
Fig. 4 is the dimensional structure diagram of the present invention.
Fig. 5 is structural representation of the present invention in locking；
Fig. 6 is structural representation of the present invention in solution.
In figure, 1-tooth shape cylinder sliding block, 1.1-breach, 1.2-tooth, 1.3-chute, 1.4-stopper slot, 2-locking
Support, 2.1-cylindrical hole, 3-linear bearing, 4-stop nut, 5-guiding screw pole, 6-ram seat, 6.1-guide through hole,
7-spring, 8-motor mount, 8.1-coupling hole, 9-linear electric motors, 10-potentiometer sensing chip, 11-limited block,
12-potentiometer pressing plate, 13-potentiometer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail：
Rotating shaft automatic locking mechanism as shown in figs. 1 to 6, it includes tooth shape cylinder sliding block 1 (outside diameter 20mm), lock
Locking bracket 2, linear bearing 3 (model LM20UU), stop nut 4, guiding screw pole 5, ram seat 6, spring 7, motor mount
8th, linear electric motors 9 (the type linear stepping motor of model 43000), potentiometer sensing chip 10, potentiometer pressing plate 12 and potentiometer 13,
Wherein, the bosom position of lock bracket 2 is provided with cylindrical hole 2.1, and the tooth shape cylinder sliding block 1 is set by linear bearing 3
Put in cylindrical hole 2.1, the front end of tooth shape cylinder sliding block 1 is provided with breach 1.1, and potentiometer sensing chip 10, tooth are installed on breach 1.1
The front end face of shape cylinder sliding block 1 is provided with tooth 1.2, and the front end of lock bracket 2, tooth shape cylinder are stretched out in the front end of tooth shape cylinder sliding block 1
The rear end of sliding block 1 is provided with chute 1.3, and stop nut 4 is arranged in chute 1.3, and the base of the ram seat 6 is bolted
Guide through hole 6.1 is provided with the rear end face of tooth shape cylinder sliding block 1, ram seat 6, the front end of guiding screw pole 5 passes through guide through hole
6.1 and it is threadedly coupled with stop nut 4, the base of ram seat 6 carries out spacing to stop nut 4, and the profile of ram seat 6 is one
Stair-stepping cylinder；
The housing of the linear electric motors 9 is fixedly connected by motor mount 8 with the rear end of lock bracket 2, motor installation
Coupling hole 8.1 is provided with seat 8, the power output shaft of linear electric motors 9 is fixed in coupling hole 8.1 with the bottom of guiding screw pole 5 to be connected
Connect, the power output shaft and guiding screw pole 5 of linear electric motors 9 can move in coupling hole 8.1, one end and the ram seat 6 of spring 7
Base is connected, and the other end of spring 7 is connected with the locating surface of motor mount 8；
The potentiometer 13 is fixed on lock bracket 2 by potentiometer pressing plate 12, and potentiometer sensing chip 10 connects current potential
The induction end of device 13, (potentiometer senses the control signal input of the control signal output connection linear electric motors 9 of potentiometer 13
Piece 10 is strip, at the breach 1.1 of tooth shape cylinder sliding block 1, one end and the potentiometer 13 of potentiometer sensing chip 10
Induction end is in contact, and main function is the extension of tooth shape cylinder sliding block 1, to control locking stroke).
In above-mentioned technical proposal, the edge of breach 1.1 of the tooth shape cylinder sliding block 1 is provided with stopper slot 1.4, the locking branch
The front end face of frame 2 is fixed with limited block 11, and the targeting part of the limited block 11 is located in stopper slot 1.4.Limited block 11 is L
Shape, the end face of L-shaped limited block is arranged on the front end face of lock bracket 2, while the targeting part and stopper slot of L-shaped limited block
1.4 are engaged, and the main function of limited block 11 is that limitation tooth shape cylinder sliding block 1 rotates in moving process；
In above-mentioned technical proposal, the tooth 1.2 has 3 tooth forms, and tooth 1.2 can be engaged with locking gear B.
In above-mentioned technical proposal, the spring 7 is cylindrical compression spring.The diameter 2mm of the cylindrical compression spring, locking
Power is 115N, releasing force 175N.
In above-mentioned technical proposal, there is 1mm idle stroke between the base and stop nut 4 of the ram seat 6.Ensure to lock
Next, the screw thread pair in retaining mechanism is all the time in the state that do not stress freely.
In above-mentioned technical proposal, the locking gear B is standard involute gear, the number of teeth 40, modulus 2.5.
The present invention needs the locking gear B that installation matches with tooth shape cylinder sliding block 1 on the rotating shaft A for requiring locking.
In above-mentioned technical proposal, the tooth shape cylinder sliding block 1, lock bracket 2, linear bearing 3, stop nut 4, guiding spiral shell
Post 5, ram seat 6, spring 7, motor mount 8 and linear electric motors 9 are to be coaxially disposed.
Tooth shape cylinder sliding block 1, lock bracket 2, stop nut 4, guiding screw pole 5, ram seat 6, motor peace in the present invention
Fill seat 8, limited block 11 is processed using stainless steel material processing, spring 7 using 65Mn, potentiometer sensing chip 10, potentiometer
Pressing plate 12 is processed using aluminium sheet.
The present invention requires according to design objective, when calculating linear electric motors power, should reserve 2~3 times of safety allowance.
The present invention has carried out seasoned experiment, thermocycling, vibration test etc. after the completion of assembling together with whole set equipment
Experiment, the locking unblock of retaining mechanism are working properly.
The present invention work when locking workflow be：Linear electric motors 9 are powered, and the power output of linear electric motors 9 is axially locked
Tight position movement, power output shaft drives stop nut 4 and guiding screw pole 5 to be moved to locked position, including tooth shape cylinder sliding block 1
Engaged under the thrust of portion's spring 7 with locking gear B, potentiometer 13 judges the present invention to locking position by potentiometer sensing chip 10
Put, potentiometer 13 controls linear electric motors 9 to rerun forward 1mm, and then linear electric motors 9 power off.
The present invention work when unblock workflow be：Linear electric motors 9 are powered, and the power output of linear electric motors 9 axially solves
Lock position moves, and power output shaft drives stop nut 4 and guiding screw pole 5, and to after moving idle stroke 1mm, stop nut 4 is with pushing away
Pole socket 6 contacts, and linear electric motors 9 drive stop nut 4, ram seat 6 and tooth form sliding block 1 to overcome the compression stress of spring 7 to solution lock-bit
Movement is put, potentiometer 13 judges the present invention to unlocked position by potentiometer sensing chip 10, and potentiometer 13 controls linear electric motors 9 disconnected
Electricity.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (8)
- A kind of 1. rotating shaft automatic locking mechanism, it is characterised in that：It includes tooth shape cylinder sliding block (1), lock bracket (2), straight line Bearing (3), stop nut (4), guiding screw pole (5), ram seat (6), spring (7), motor mount (8), linear electric motors (9), Potentiometer sensing chip (10), potentiometer pressing plate (12) and potentiometer (13), wherein, lock bracket (2) the bosom position Provided with cylindrical hole (2.1), the tooth shape cylinder sliding block (1) is arranged in cylindrical hole (2.1) by linear bearing (3), tooth form circle The front end of post sliding block (1) is provided with breach (1.1), and potentiometer sensing chip (10), tooth shape cylinder sliding block (1) are installed on breach (1.1) Front end face be provided with tooth (1.2), the front end of lock bracket (2), tooth shape cylinder sliding block are stretched out in the front end of tooth shape cylinder sliding block (1) (1) rear end is provided with chute (1.3), and stop nut (4) is arranged in chute (1.3), and the base of the ram seat (6) is fixed on The rear end face of tooth shape cylinder sliding block (1), ram seat (6) is interior to be provided with guide through hole (6.1), and the front end of guiding screw pole (5), which passes through, leads It is threadedly coupled to through hole (6.1) and with stop nut (4), the base of ram seat (6) is spacing to stop nut (4) progress；The housing of the linear electric motors (9) is fixedly connected by motor mount (8) with the rear end of lock bracket (2), motor peace Be provided with coupling hole (8.1) in dress seat (8), the power output shafts of linear electric motors (9) is in coupling hole (8.1) and guiding screw pole (5) Bottom be fixedly connected, the power output shaft and guiding screw pole (5) of linear electric motors (9) can move in coupling hole (8.1), spring (7) one end is connected with the base of ram seat (6), and the other end of spring (7) is connected with the locating surface of motor mount (8)；The potentiometer (13) is fixed on lock bracket (2) by potentiometer pressing plate (12), potentiometer sensing chip (10) connection The induction end of potentiometer (13), the control signal input of the control signal output connection linear electric motors (9) of potentiometer (13).
- 2. rotating shaft automatic locking mechanism according to claim 1, it is characterised in that：The tooth shape cylinder sliding block (1) lacks Mouth (1.1) edge is provided with stopper slot (1.4), and the front end face of the lock bracket (2) is fixed with limited block (11), the limited block (11) targeting part is located in stopper slot (1.4).
- 3. rotating shaft automatic locking mechanism according to claim 1, it is characterised in that：The tooth (1.2) has 3 tooth forms, Tooth (1.2) can be engaged with locking gear (B).
- 4. rotating shaft automatic locking mechanism according to claim 1, it is characterised in that：The spring (7) is that cylinder compresses bullet Spring.
- 5. rotating shaft automatic locking mechanism according to claim 4, it is characterised in that：The diameter of the cylindrical compression spring 2mm, coupling mechanism force 115N, releasing force 175N.
- 6. rotating shaft automatic locking mechanism according to claim 1, it is characterised in that：The base and limit of the ram seat (6) There is 1mm idle stroke between position nut (4).
- 7. rotating shaft automatic locking mechanism according to claim 3, it is characterised in that：The locking gear (B) be standard gradually Involute gear, the number of teeth 40, modulus 2.5.
- 8. rotating shaft automatic locking mechanism according to claim 1, it is characterised in that：The tooth shape cylinder sliding block (1), locking Support (2), linear bearing (3), stop nut (4), guiding screw pole (5), ram seat (6), spring (7), motor mount (8) and Linear electric motors (9) are to be coaxially disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610416761.4A CN105972122B (en) | 2016-06-15 | 2016-06-15 | rotating shaft automatic locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610416761.4A CN105972122B (en) | 2016-06-15 | 2016-06-15 | rotating shaft automatic locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972122A CN105972122A (en) | 2016-09-28 |
| CN105972122B true CN105972122B (en) | 2018-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610416761.4A Active CN105972122B (en) | 2016-06-15 | 2016-06-15 | rotating shaft automatic locking mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN105972122B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109058331B (en) * | 2018-10-17 | 2020-06-09 | 哈尔滨工业大学 | Non-return clearance power-off brake for robot |
| CN113049782A (en) * | 2021-03-23 | 2021-06-29 | 海南青峰生物科技有限公司 | Quick soil temperature and humidity measuring device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009006354A1 (en) * | 2008-02-26 | 2009-08-27 | Schaeffler Kg | Lock for a start-stop operation of a starter generator |
| JP5096204B2 (en) * | 2008-03-24 | 2012-12-12 | 株式会社アルファ | Door lock device |
| CN201925372U (en) * | 2010-12-11 | 2011-08-10 | 九江精密测试技术研究所 | Automatic locking mechanism for rotary shaft system |
| CN202628727U (en) * | 2012-05-25 | 2012-12-26 | 广州柴油机厂股份有限公司 | Split crankshaft gear of high-power diesel engine |
| 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 |
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2016
- 2016-06-15 CN CN201610416761.4A patent/CN105972122B/en active Active
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| Publication number | Publication date |
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| CN105972122A (en) | 2016-09-28 |
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