CN202659837U - Ball screw type electric linear driver with limiting slip - Google Patents
Ball screw type electric linear driver with limiting slip Download PDFInfo
- Publication number
- CN202659837U CN202659837U CN 201220254419 CN201220254419U CN202659837U CN 202659837 U CN202659837 U CN 202659837U CN 201220254419 CN201220254419 CN 201220254419 CN 201220254419 U CN201220254419 U CN 201220254419U CN 202659837 U CN202659837 U CN 202659837U
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- ball
- screw
- electric linear
- linear driver
- assembly
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Abstract
The utility model relates to a ball screw type electric linear driver with limiting slip, and the driver comprises a motor and an actuator main body mounted on the motor, wherein the driver main body comprises a drive tube assembly; an outer circular tube assembly is sleeved outside the drive tube assembly; a drive tube connector is arranged at the front end of the drive tube assembly; and a copper sleeve is sleeved to the drive tube connector. The ball screw type slip-limiting electric linear driver causes a drive sleeve and a positioning sleeve to rotatably slide relative to each other, so that slip in use becomes possible; and as a result, the cost is reduced and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of electric actuator part, the spacing electric linear driver that skids of especially a kind of ball wire rod-type band.
Background technique
In electric power assisted wheelchair, electric linear driver is used as the angle adjustment of the chair back and seat board, has the function that raising human comfort and power-assisted play seat.Current for the electric wheelchair linear actuator, the limit switches that adopt as the stroke limit at flexible two ends more, in actual use, the reasons such as the minority position limit switch can be because of dust, make moist, contact arc discharge cause spacing inefficacy, cause functional fault or apparatus to damage.
The model utility content
The technical problems to be solved in the utility model is: provide a kind of ball wire rod-type band the spacing electric linear driver that skids, the spacing slip structure of Purely mechanical is to adapt to user's request.
The technological scheme that its technical problem that solves the utility model adopts is: the spacing electric linear driver that skids of a kind of ball wire rod-type band, comprise motor and be installed in drive body on the motor, described drive body comprises the driving tube assembly, the outer cover of driving tube assembly is connected to outer pipe assembly, the front end of described driving tube assembly is provided with the driving tube connecting head, and cover has copper sheathing on the described driving tube connecting head.
Specifically, driving tube assembly described in the utility model is the screw mandrel assembly, comprises screw component and screw axis grip assembly, and a side of described screw axis grip assembly is provided with worm gear; Flexible straight pin is assigned in segmentation on the described screw component; The termination outer cover of screw component has the screw mandrel setting sleeve.
Screw component described in the utility model comprises the double end ball screw, and described double end ball screw outer cover has the ball driving casing, adds ball between ball driving casing and the double end ball screw to cover; Form the space between described double end ball screw and the ball driving casing, run through the placement steel ball in the described space.Steel ball contacts respectively the thread groove of screw mandrel and the thread groove of driving casing like this, make driving casing both can be on screw mandrel straight line motion, the screw mandrel rotation is skidded relatively again.
For startup impact and load shock that can effective system, and the positioning accuracy request of reduction assembling, thereby the available buffer formula coupling that adds Steel Skeleton by rubber between the Cost reduction, and increasing the service life, motor described in the utility model and drive body is connected.
The beneficial effects of the utility model are, have solved the defective that exists in the background technique, so that driving casing and setting sleeve can relative rotary slips, using skids becomes possibility, thus Cost reduction, and increase the service life.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Fig. 2 is the structural representation of the utility model screw mandrel assembly;
Fig. 3 is the structural representation of the utility model screw component.
Embodiment
With preferred embodiment the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The spacing electric linear driver that skids of a kind of ball wire rod-type band as shown in Figure 1, comprise motor 6 and be installed in drive body 1 on the motor, drive body 1 comprises driving tube assembly 2, the outer cover of driving tube assembly is connected to outer pipe assembly 3, the front end of driving tube assembly 2 is provided with driving tube connecting head 7, and cover has copper sheathing 8 on the driving tube connecting head.
The driving tube assembly is the screw mandrel assembly, as shown in Figure 2, comprises screw component 4 and screw axis grip assembly 5, and a side of screw axis grip assembly is provided with worm gear 9; Flexible straight pin 10 is assigned in segmentation on the screw component; The termination outer cover of screw component has screw mandrel setting sleeve 11.
Screw component shown in Figure 3 comprises double end ball screw 12, and double end ball screw outer cover has ball driving casing 13, adds ball bearing guide bushing 14 between ball driving casing 13 and the double end ball screw 12; Form the space between double end ball screw and the ball driving casing, run through in the space and place steel ball 15.Steel ball contacts respectively the thread groove of screw mandrel and the thread groove of driving casing like this, make driving casing both can be on screw mandrel straight line motion, the screw mandrel rotation is skidded relatively again.
For startup impact and load shock that can effective system, and reduce the positioning accuracy request of assembling, thereby Cost reduction and increases the service life, the available buffer formula coupling 16 that adds Steel Skeleton by rubber between motor 6 and the drive body 1 is connected.
What describe in the above specification is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of model utility.
Claims (4)
1. spacing electric linear driver that skids of ball wire rod-type band, comprise motor and be installed in drive body on the motor, it is characterized in that: described drive body comprises the driving tube assembly, the outer cover of driving tube assembly is connected to outer pipe assembly, the front end of described driving tube assembly is provided with the driving tube connecting head, and cover has copper sheathing on the described driving tube connecting head.
2. the spacing electric linear driver that skids of ball wire rod-type band as claimed in claim 1, it is characterized in that: described driving tube assembly is the screw mandrel assembly, comprises screw component and screw axis grip assembly, a side of described screw axis grip assembly is provided with worm gear; Flexible straight pin is assigned in segmentation on the described screw component; The termination outer cover of screw component has the screw mandrel setting sleeve.
3. the spacing electric linear driver that skids of ball wire rod-type band as claimed in claim 2, it is characterized in that: described screw component comprises the double end ball screw, described double end ball screw outer cover has the ball driving casing, adds ball between ball driving casing and the double end ball screw to cover; Form the space between described double end ball screw and the ball driving casing, run through the placement steel ball in the described space.
4. the spacing electric linear driver that skids of ball wire rod-type band as claimed in claim 1 is characterized in that: the available buffer formula coupling that adds Steel Skeleton by rubber between described motor and the drive body is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254419 CN202659837U (en) | 2012-05-31 | 2012-05-31 | Ball screw type electric linear driver with limiting slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254419 CN202659837U (en) | 2012-05-31 | 2012-05-31 | Ball screw type electric linear driver with limiting slip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659837U true CN202659837U (en) | 2013-01-09 |
Family
ID=47454746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254419 Expired - Fee Related CN202659837U (en) | 2012-05-31 | 2012-05-31 | Ball screw type electric linear driver with limiting slip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595446A (en) * | 2013-10-30 | 2015-05-06 | 北京精密机电控制设备研究所 | Novel blockage preventing device for electromechanical actuator |
-
2012
- 2012-05-31 CN CN 201220254419 patent/CN202659837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595446A (en) * | 2013-10-30 | 2015-05-06 | 北京精密机电控制设备研究所 | Novel blockage preventing device for electromechanical actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140531 |