CN103115123A - Locking device of ball screw - Google Patents
Locking device of ball screw Download PDFInfo
- Publication number
- CN103115123A CN103115123A CN201310043393XA CN201310043393A CN103115123A CN 103115123 A CN103115123 A CN 103115123A CN 201310043393X A CN201310043393X A CN 201310043393XA CN 201310043393 A CN201310043393 A CN 201310043393A CN 103115123 A CN103115123 A CN 103115123A
- Authority
- CN
- China
- Prior art keywords
- brake disc
- ball screw
- screw
- pressure spring
- face
- Prior art date
- 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.)
- Granted
Links
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H25/2454—Brakes; Rotational locks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a locking device of a ball screw. The locking device comprises a shell body (7), a coil (6), a screw nut (2), a brake disc (4) and a pressure spring (8). The coil (6) is arranged on the shell body (7), and the pressure spring (8) is arranged in the shell body (7). The shell body (7) is provided with the brake disc (4) which can move along a guide post pin and pass through the guide post pin (5). The axis of the brake disc (4) is in coincidence with that of the ball screw. One end of the pressure spring (8) is pressed on the shell body (7), and the other end of the pressure spring (8) is pressed on the brake disc (4). A friction disc (1) is arranged on the end face of the screw nut (2) of the ball screw, and a friction disc (3) corresponding to the friction disc (1) arranged on the end face of the screw nut (2) is arranged on the end face of the brake disc (4). Through action of the electromagnetic force and the pressure spring, moving and locking of the ball screw are realized, and a self-lock function of the ball screw is realized, and effect is good in actual application.
Description
Technical field
The present invention relates to a kind of locking device, especially a kind of locking device of ball screw.
Background technique
Aircraft life-saving seat motor drive mechanism is used for regulating the lifting of chair basin, thereby controls the position of Aircraft life-saving seat.In traditional motor drive mechanism, Motor torque is changed into straight-line actuator and usually adopt the screw thread transmission, transmission efficiency is low, volume weight is large, energy consumption is high.According to this situation, design a kind of structure of ball screw pair that adopts and substituted the screw thread transmission, the sliding friction of this structure during with original screw thread transmission changes rolling friction into, reduced friction, the power that needs is little, transmission efficiency can be improved 3 times, motor drive mechanism volume, weight and energy consumption are significantly reduced.But the structure of ball screw pair can not self-locking characteristic, can not prevent from being easy to cause a serious accident in the instantaneous screw rotation of Aircraft life-saving seat fire, thereby the requirement in the time of can't adapting to Lifesaving chair and launch can't guarantee pilot's life safety.
Summary of the invention
The objective of the invention is to solve the auto-lock function of ball screw pair, solve in the instantaneous difficult problem that prevents that the screw rotation from causing a serious accident of Aircraft life-saving seat fire.
technical solution of the present invention is, the locking device of ball screw comprises housing, coil, screw, brake disc, pressure spring, coil is arranged on housing, inside at housing is provided with pressure spring, also by the guide pillar pin, the brake disc that can move along the guide pillar pin is installed on housing, the axis of described brake disc and the dead in line of ball screw, described pressure spring one side pressure is on housing, the other end is pressed on brake disc, the end face of the screw of ball screw is provided with friction disk, the end face of brake disc is provided with the grinding disk corresponding with the friction disk of the end face of screw.
Under the effect of the present invention by electromagnetic force and pressure spring, realize motion and the locking of ball screw, solved the auto-lock function of ball screw, in actual applications, respond well.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
as shown in the figure, the locking device of ball screw comprises housing 7, coil 6, screw 2, brake disc 4, pressure spring 8, coil 6 is arranged on housing 7, be provided with pressure spring 8 in the inside of housing 7, also by guide pillar pin 5, the brake disc 4 that can move along the guide pillar pin is installed on housing 7, the axis of described brake disc 4 and the dead in line of ball screw, described pressure spring 8 one side pressures are on housing 7, the other end is pressed on brake disc 4, the end face of the screw 2 of ball screw is provided with friction disk 1, the end face of brake disc 4 is provided with the grinding disk 3 corresponding with the friction disk 1 of the end face of screw 2.
In use, coil 7 is connected with the motor drive mechanism motor, after power connection, coil 7 produces magnetic field, and brake disc 4 moves along guide pillar pin 5 under the effect of magnetic force, and this moment, brake disc 4 separated with screw 2, generator shaft gear drives screw 2 rotations, and leading screw drives the elevating movement of Lifesaving chair chair basin.When the chair basin moves to the stroke final position or launches, external power supply will cut off, and this moment, the magnetic field of coil 6 generations disappeared, brake disc 4 is under the effect of pressure spring 8, contact with screw 2, the friction disk friction produces braking torque stops the rotation screw 2, thereby has guaranteed the purpose of leading screw locking.
Claims (1)
1. the locking device of a ball screw, it is characterized in that, described device comprises housing [7], coil [6], screw [2], brake disc [4], pressure spring [8], coil [6] is arranged on housing [7], be provided with pressure spring [8] in the inside of housing [7], also by guide pillar pin [5], the brake disc [4] that can move along the guide pillar pin is installed on housing [7], the axis of described brake disc [4] and the dead in line of ball screw, described pressure spring [8] one side pressures are on housing [7], the other end is pressed on brake disc [4], the end face of the screw of ball screw [2] is provided with friction disk [1], the end face of brake disc [4] is provided with the grinding disk [3] corresponding with the friction disk [1] of the end face of screw [2].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043393.XA CN103115123B (en) | 2013-02-04 | 2013-02-04 | The locking device of ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043393.XA CN103115123B (en) | 2013-02-04 | 2013-02-04 | The locking device of ball screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103115123A true CN103115123A (en) | 2013-05-22 |
| CN103115123B CN103115123B (en) | 2015-12-09 |
Family
ID=48413538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310043393.XA Active CN103115123B (en) | 2013-02-04 | 2013-02-04 | The locking device of ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115123B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150780A (en) * | 2015-08-22 | 2015-12-16 | 北京朗胜峰测控科技有限公司 | Mechanical locking and locating device and tire evenness testing system with same |
| CN110388430A (en) * | 2019-07-31 | 2019-10-29 | 东南大学 | A kind of ball-screw with self-locking structure |
| CN111630301A (en) * | 2018-01-22 | 2020-09-04 | 利纳克有限公司 | Linear actuator |
| CN116067651A (en) * | 2023-03-07 | 2023-05-05 | 四川大学 | In-situ equivalent testing system and testing method for ball friction and movement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01234105A (en) * | 1988-03-15 | 1989-09-19 | Shinko Electric Co Ltd | Electrically driven chuck driving device |
| JPH01311844A (en) * | 1988-06-08 | 1989-12-15 | Agency Of Ind Science & Technol | Linear actuator |
| JP2003014017A (en) * | 2001-06-26 | 2003-01-15 | Oriental Motor Co Ltd | Electromagnetic brake mechanism for actuator |
| CN102097887A (en) * | 2009-12-11 | 2011-06-15 | 山洋电气株式会社 | Linear actuator |
-
2013
- 2013-02-04 CN CN201310043393.XA patent/CN103115123B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01234105A (en) * | 1988-03-15 | 1989-09-19 | Shinko Electric Co Ltd | Electrically driven chuck driving device |
| JPH01311844A (en) * | 1988-06-08 | 1989-12-15 | Agency Of Ind Science & Technol | Linear actuator |
| JP2003014017A (en) * | 2001-06-26 | 2003-01-15 | Oriental Motor Co Ltd | Electromagnetic brake mechanism for actuator |
| CN102097887A (en) * | 2009-12-11 | 2011-06-15 | 山洋电气株式会社 | Linear actuator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150780A (en) * | 2015-08-22 | 2015-12-16 | 北京朗胜峰测控科技有限公司 | Mechanical locking and locating device and tire evenness testing system with same |
| CN105150780B (en) * | 2015-08-22 | 2017-12-15 | 北京朗胜峰测控科技有限公司 | The tire uniformity testing system of mechanical lock clamping and positioning device and the application device |
| CN111630301A (en) * | 2018-01-22 | 2020-09-04 | 利纳克有限公司 | Linear actuator |
| CN111630301B (en) * | 2018-01-22 | 2023-05-12 | 利纳克有限公司 | Linear actuator |
| CN110388430A (en) * | 2019-07-31 | 2019-10-29 | 东南大学 | A kind of ball-screw with self-locking structure |
| CN116067651A (en) * | 2023-03-07 | 2023-05-05 | 四川大学 | In-situ equivalent testing system and testing method for ball friction and movement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103115123B (en) | 2015-12-09 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |