CN202371103U - Ball screw type direct-current linear driver - Google Patents
Ball screw type direct-current linear driver Download PDFInfo
- Publication number
- CN202371103U CN202371103U CN2011205575312U CN201120557531U CN202371103U CN 202371103 U CN202371103 U CN 202371103U CN 2011205575312 U CN2011205575312 U CN 2011205575312U CN 201120557531 U CN201120557531 U CN 201120557531U CN 202371103 U CN202371103 U CN 202371103U
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- ball screw
- ball
- plane bearing
- wire rod
- locking spring
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Abstract
The utility model discloses a ball screw type direct-current linear driver, which comprises a bidirectional rotary motor (1). A gear output shaft (2) is driven by the motor (1) to rotate through a gear deceleration system. The ball screw type direct-current linear driver is characterized by further comprising a ball screw nut pair, wherein the ball screw nut pair comprises a ball screw (3) and a ball nut (4) which is movably arranged on the ball screw (3), an inner round tube (6) is fixed at the left end of the ball screw (4), a connection screw (8) is fixed at the left end of the inner round tube (6), the ball screw (3) is connected with the gear output shaft (2) through a coupling (9), and a self locking device is positioned on the ball screw (3). The ball screw type direct-current linear driver is compact in structure, low in cost, capable of assembling a connection push rod at any angle, large in self locking force, reliable in working and long in service life.
Description
Technical field
The utility model relates to a kind of machinery that can reciprocating sliding, specifically, relates to a kind of ball wire rod-type ac line property driver.
Background technique
At present; Existing Linear actuator adopts the bolt and nut structure more; Disclosed a kind of electric pushrod of Chinese patent CN2810016Y and the disclosed a kind of electric pushrod of Chinese patent CN2775923Y; All be to adopt the bolt and nut structure to be converted into straight line motion to rotatablely moving of motor, its shortcoming is that frictional loss is big, transmission efficiency is low, bolt and nut is prone to loss, can not frequently turns round, and safeguards inconvenience simultaneously.
The frictional force of ball or roller feed screw nut assembly is minimum, transmission efficiency is high; Replace the bolt and nut structure can overcome its above-mentioned shortcoming with it; But ball or roller feed screw nut assembly do not have auto-lock function; Therefore want to make the Linear actuator of ball wire rod-type when work, can start at an arbitrary position, stop and locking, must have self-locking device also claim to reverse self-locking device or non-return device to realize.Existing ball or roller screw mandrel formula Linear actuator are also favourable to adopt the various control function with motor; On drive motor, be provided with self-locking device like stepper motor, actuating motor etc.; But cost is higher, is unfavorable for promoting the use of at roller screw mandrel formula direct current Linear actuator.
Summary of the invention
The purpose of the utility model provides a kind of compact structure, auto-lock function and ball wire rod-type ac line property driver with low cost is arranged
The technological scheme that realizes the utility model purpose is: a kind of ball wire rod-type ac line property driver; Comprising can two-way motor rotating; Motor drives a gear output shaft through gear reduction system and rotates, and also comprises ballscrew nut fitting, and ballscrew nut fitting comprises ball screw and is contained in the ball nut on the ball screw movably; The left end of this ball nut is fixed with interior pipe; The left end of interior pipe is fixed with connecting screw rod, and ball screw is connected with gear output shaft through a shaft coupling, and self-locking device also is housed on the ball screw.
Further; Described self-locking device comprises outer pipe; Outer pipe internal fixation is equipped with flange plate, and flange plate is sleeved on the ball screw with a gap, on the ball screw of flange plate both sides, also is respectively installed with left plane bearing and right plane bearing; On the ball screw in left plane bearing left side, also be set with drive plate; Described shaft coupling is sleeved on the ball screw on right plane bearing right side, and drive plate all is fixedly connected with ball screw with shaft coupling, and drive plate is connected with the left locking spring of left plane bearing through lock ring on both outer rings; Shaft coupling is connected with the right locking spring of right plane bearing through lock ring on both outer rings, and the Hand of spiral of ball screw, left locking spring and right locking spring is identical.
Further, described interior pipe is sleeved on the inwall of outer pipe movably.
Further, on the outer ring of described left plane bearing and right plane bearing shell is installed.
Further, be provided with hook on described left locking spring and the right locking spring, all have and link up with corresponding pocket for the punch head on described drive plate and the shaft coupling.
Further, be provided with lining between described flange plate and the ball screw.
Further, described lining is an oil-containing material copper bush.
After having adopted technique scheme, the utility model compact structure is not because the utility model is that self-locking device is set on drive motor; Cost is lower, and connecting push rod can assemble in any angular position, and the employed self-locking device self-lock force of the utility model is big; Reliable operation, long service life.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the ball wire rod-type ac line property driver of the utility model;
Fig. 2 is the structure cross-sectional schematic of the left plane bearing of the utility model;
Fig. 3 is the stereogram of the left locking spring of the utility model;
Fig. 4 is the stereogram of the drive plate of the utility model;
Fig. 5 is the stereogram of the shaft coupling of the utility model.
Embodiment
For the content that makes the utility model is expressly understood more easily, below according to specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation,
As shown in Figure 1; A kind of ball wire rod-type ac line property driver, comprising can two-way motor rotating 1, and motor 1 drives a gear output shaft 2 through gear reduction system and rotates; Also comprise ballscrew nut fitting; Ballscrew nut fitting comprises ball screw 3 and is contained in the ball nut 4 on the ball screw 3 movably, pipe 6 in the left end of this ball nut 4 is fixed with through screw connector 5, and the left end of interior pipe 6 is fixed with connecting screw rod 8 through screw rod link 7; Ball screw 3 is connected with gear output shaft 2 through a shaft coupling 9, and self-locking device also is housed on the ball screw 3.Described self-locking device comprises outer pipe 10; Outer pipe 10 internal fixation are equipped with flange plate 11; Flange plate 11 is sleeved on the ball screw 3 with a gap, on the ball screw 3 of flange plate 11 both sides, also is respectively installed with left plane bearing 12 and right plane bearing 13, on the ball screw 3 in left plane bearing 12 left sides, also is set with drive plate 14; Described shaft coupling 9 is sleeved on the ball screw 3 on right plane bearing 13 right sides; Drive plate 14 is fixedly connected with ball screw 3 through preceding pin 15, and shaft coupling 9 is fixedly connected with ball screw 3 through afterwards selling 16, and drive plate 14 is connected with the left locking spring 17 of left plane bearing 12 through lock ring on both outer rings; Shaft coupling 9 is connected with the right locking spring 18 of right plane bearing 13 through lock ring on both outer rings, and ball screw 3, left locking spring 17 are identical with the Hand of spiral of right locking spring 18.The sense of rotation of ball screw 3, left locking spring 17 and right locking spring 18 is dextrorotation in the utility model, left-handed same being suitable for, and sense of rotation can be judged through connecting screw rod 8 ends.
As shown in Figure 1, described interior pipe 6 is sleeved on the inwall of outer pipe 10 movably.
As shown in Figure 2, on the outer ring of described left plane bearing 12 and right plane bearing 13 shell 19 is installed.
Shown in Fig. 3 ~ 5, be provided with hook 20 on described left locking spring 17 and the right locking spring 18, all have and link up with 20 corresponding pocket for the punch heads 21 on described drive plate 14 and the shaft coupling 9.
As shown in Figure 1, be provided with lining 22 between described flange plate 11 and the ball screw 3.Described lining 22 is an oil-containing material copper bush.
Connecting screw rod 8 is connected with quilt driving object during actual the use, and interior pipe 6 all can not rotate with ball nut 4.Motor 1 energising drives the reduction gear device rotation, is transferred to driving ball screw 3 rotations on the shaft coupling 9 through gear output shaft 2, and ball nut 4 is done straight line motion on ball screw 3, drives by the driving object with connecting screw rod 8 through interior pipe 6 and does straight line motion.Through the clockwise and anticlockwise of motor 1, realization is driven stretching of object and is contracted.
When motor 1 energising, when driving ball screw 3 turns clockwise, driven object and released, the axial force that ball screw 3 receives is with opposite by the driving movement direction of object, shown in the arrow A among Fig. 1.Left plane bearing 12 is pressed on the flange plate 11, does not have pressure between right plane bearing 13 and the flange plate 11, follow ball screw 3 and rotate together.Drive plate 14 is followed ball screw 3 and is turned clockwise together, and left locking spring 17 launches, and left plane bearing 12 does not produce rotation and hinders.
When motor 1 energising, when driving ball screw 3 is rotated counterclockwise, driven object to retract, it is opposite that axial force that ball screw 3 receives and quilt drive movement direction of object, shown in the arrow B among Fig. 1.Right plane bearing 13 is pressed on the flange plate 11, does not have pressure between left plane bearing 12 and the flange plate 11, follow ball screw 3 and rotate together.Shaft coupling 9 is followed ball screw 3 and is rotated counterclockwise together, and right locking spring 18 launches, and right plane bearing 13 does not produce rotation and hinders.
When motor 1 does not turn round; When under gravity or other external force effect, inwardly being advanced as driving object; Ball screw 3 has the trend that rotates counterclockwise; The axial force that receives is shown in the arrow A among Fig. 1, and left plane bearing 12 is pressed on the flange plate 11, and the frictional force between the shell of left plane bearing 12 and the flange plate 11 makes between two parts can not produce relative movement.Drive plate 14 has follows the trend that ball screw 3 is rotated counterclockwise, and drives left locking spring 17 and tightens up, and left plane bearing 12 is held tightly, and rotation produce is hindered, make driven object can not be by inside propelling, thereby realized self-locking.
When motor 1 does not turn round; When under gravity or other external force effect, outwards being pulled out as driving object; Ball screw 3 has the trend that clockwise rotates; The axial force that receives is shown in the arrow B among Fig. 1, and right plane bearing 13 is pressed on the flange plate 11, and the frictional force between the shell of right plane bearing 13 and the flange plate 11 makes between two parts can not produce relative movement.Shaft coupling 9 has follows the trend that ball screw 3 turns clockwise, and drives right locking spring 18 and tightens up, and right plane bearing 13 is held tightly, rotation is produced hinder, and makes by the driving object and can not inwardly be pulled out, thereby realized self-locking.
Above-described specific embodiment; Purpose, technological scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. ball wire rod-type ac line property driver; Comprising can two-way motor rotating (1); Motor (1) drives a gear output shaft (2) through gear reduction system and rotates, and it is characterized in that: comprise that also ballscrew nut fitting, ballscrew nut fitting comprise ball screw (3) and be contained in the ball nut (4) on the ball screw (3) movably; The left end of this ball nut (4) is fixed with interior pipe (6); The left end of interior pipe (6) is fixed with connecting screw rod (8), and ball screw (3) is connected with gear output shaft (2) through a shaft coupling (9), and ball screw also is equipped with self-locking device on (3).
2. ball wire rod-type ac line property driver according to claim 1; It is characterized in that: described self-locking device comprises outer pipe (10); Outer pipe (10) internal fixation is equipped with flange plate (11); Flange plate (11) is sleeved on the ball screw (3) with a gap; On the ball screw (3) of flange plate (11) both sides, also be respectively installed with left plane bearing (12) and right plane bearing (13); On the ball screw (3) in left plane bearing (12) left side, also be set with drive plate (14); Described shaft coupling (9) is sleeved on the ball screw (3) on right plane bearing (13) right side, and drive plate (14) all is fixedly connected with ball screw (3) with shaft coupling (9), and drive plate (14) is connected with the left locking spring (17) of left plane bearing (12) through lock ring on both outer rings; Shaft coupling (9) is connected with the right locking spring (18) of right plane bearing (13) through lock ring on both outer rings, and ball screw (3), left locking spring (17) are identical with the Hand of spiral of right locking spring (18).
3. ball wire rod-type ac line property driver according to claim 1 and 2 is characterized in that: pipe (6) is sleeved on the inwall of outer pipe (10) movably in described.
4. ball wire rod-type ac line property driver according to claim 1 and 2 is characterized in that: on the outer ring of described left plane bearing (12) and right plane bearing (13) shell (19) is installed.
5. ball wire rod-type ac line property driver according to claim 1 and 2; It is characterized in that: be provided with hook (20) on described left locking spring (17) and the right locking spring (18), all have and link up with (20) corresponding pocket for the punch head (21) on described drive plate (14) and the shaft coupling (9).
6. ball wire rod-type ac line property driver according to claim 2 is characterized in that: be provided with lining (22) between described flange plate (11) and the ball screw (3).
7. ball wire rod-type ac line property driver according to claim 6, it is characterized in that: described lining (22) is an oil-containing material copper bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205575312U CN202371103U (en) | 2011-12-28 | 2011-12-28 | Ball screw type direct-current linear driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205575312U CN202371103U (en) | 2011-12-28 | 2011-12-28 | Ball screw type direct-current linear driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371103U true CN202371103U (en) | 2012-08-08 |
Family
ID=46594807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205575312U Expired - Fee Related CN202371103U (en) | 2011-12-28 | 2011-12-28 | Ball screw type direct-current linear driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371103U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815179A (en) * | 2012-09-04 | 2012-12-12 | 中国航天三江集团公司 | Independent suspension with single trailing arm and hydro-pneumatic spring |
| CN104308857A (en) * | 2014-09-30 | 2015-01-28 | 黄国哲 | Robot joint reduction gear |
| CN106402310A (en) * | 2016-11-14 | 2017-02-15 | 清华大学天津高端装备研究院 | Refueling device with antifriction self-locking function |
| CN107314090A (en) * | 2017-07-04 | 2017-11-03 | 浙江捷昌线性驱动科技股份有限公司 | It is a kind of can bidirectional self-locking electric pushrod |
| CN109154371A (en) * | 2016-06-06 | 2019-01-04 | 索尤若驱动有限及两合公司 | Linear actuator with the nut and screw rod that are rotatably supported in support cap |
-
2011
- 2011-12-28 CN CN2011205575312U patent/CN202371103U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815179A (en) * | 2012-09-04 | 2012-12-12 | 中国航天三江集团公司 | Independent suspension with single trailing arm and hydro-pneumatic spring |
| CN104308857A (en) * | 2014-09-30 | 2015-01-28 | 黄国哲 | Robot joint reduction gear |
| CN104308857B (en) * | 2014-09-30 | 2017-06-16 | 黄国哲 | Joint of robot deceleration device |
| CN109154371A (en) * | 2016-06-06 | 2019-01-04 | 索尤若驱动有限及两合公司 | Linear actuator with the nut and screw rod that are rotatably supported in support cap |
| CN109154371B (en) * | 2016-06-06 | 2022-03-04 | 索尤若驱动有限及两合公司 | Linear drive with a nut and a spindle rotatably mounted in a bearing cover |
| CN106402310A (en) * | 2016-11-14 | 2017-02-15 | 清华大学天津高端装备研究院 | Refueling device with antifriction self-locking function |
| CN107314090A (en) * | 2017-07-04 | 2017-11-03 | 浙江捷昌线性驱动科技股份有限公司 | It is a kind of can bidirectional self-locking electric pushrod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20201228 |