CN203051659U - Linear actuator and rocker arm driving mechanism thereof - Google Patents
Linear actuator and rocker arm driving mechanism thereof Download PDFInfo
- Publication number
- CN203051659U CN203051659U CN 201220742099 CN201220742099U CN203051659U CN 203051659 U CN203051659 U CN 203051659U CN 201220742099 CN201220742099 CN 201220742099 CN 201220742099 U CN201220742099 U CN 201220742099U CN 203051659 U CN203051659 U CN 203051659U
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- nut
- driving
- rocker arm
- pad
- telescopic pipe
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Abstract
Provided are a linear actuator and a rocker arm driving mechanism of the liner actuator. The linear actuator comprises an electric driving mechanism, a leading screw, an outer tube, a telescopic tube and the rocker arm driving mechanism. The rocker arm driving mechanism comprises a rocker arm, a driving nut, a telescopic tube sleeve barrel which is connected outside the driving nut in a sleeved mode, a first gasket which is clamped between the driving nut and the telescopic tube sleeve barrel, a nut penetrating barrel which is connected between the driving nut and the telescopic tube sleeve barrel in a penetrating mode and a second gasket which is clamped between the telescopic tube sleeve barrel and the nut penetrating barrel. The rocker arm comprises a handlebar and a sleeve tube, the sleeve tube is in mutual linkage with the leading screw, a plurality of threads which are fixedly connected with the telescopic tube are arranged on the outer periphery of the telescopic tube sleeve barrel, and the nut penetrating barrel is in mutual linkage with the driving nut. The rotary rocker arm enables the linear actuator to be operated under the condition that power can not be supplied.
Description
Technical field
The utility model relates to a kind of linear actuating device, particularly a kind of linear actuating device with driving mechanism for rocker arm.
Background technique
Linear actuators is indispensable in an automation facility assembly, and its application area is quite extensive, comprises bed accessory, chair tool, table tool, raising platform, motorized window ... etc.
General common linear actuators is at support assembling one motor and an outer tube mostly.Base inner is equiped with a driving screw, and drives the driving screw rotation with motor.Be bolted with a telescopic pipe in the driving screw outside in addition, and in outside socket one outer tube of telescopic pipe, an end of outer tube is to be fixed on support.So, telescopic pipe can be with the driving of motor, and axially does the linear reciprocating displacement with respect to outer tube along driving screw.
Because the driving screw of linear actuators is to drive by motor at present, so can't under the situation that maybe can't power that has a power failure, use.Therefore, how still allowing linear actuators operate to deal with emergency under the situation that can't power, namely is that the utility model is desired the actively problem of solution.
The model utility content
The purpose of this utility model is to provide a kind of linear actuators and driving mechanism for rocker arm thereof, to allow the linear actuators running under the situation of unregulated power supply.
For reaching above-mentioned purpose, the utility model provides a kind of driving mechanism for rocker arm of linear actuators, and described linear actuators has a driving screw and a telescopic pipe, and this driving mechanism for rocker arm comprises:
One rocking arm, comprise a handgrip and with a sleeve pipe of this handgrip interlock, and this sleeve pipe and the mutual interlock of described driving screw;
One drives nut, with the transmission that is spirally connected mutually of described driving screw;
One telescopic pipe sleeve is socketed in outside this driving nut, and the outer periphery of this telescopic pipe sleeve are provided with a plurality of screw threads of affixed described telescopic pipe;
One first pad, folder is pulled between this driving nut and this telescopic pipe sleeve;
One nut is worn tube, and cross-under drives between nut and this telescopic pipe sleeve at this, and drives nut interlock each other with this; And
One second pad, folder is pulled and is worn between the tube at this telescopic pipe sleeve and this nut.
The driving mechanism for rocker arm of above-mentioned linear actuators wherein also comprises a coupling that connects this driving screw, and this rocking arm connects this driving screw by this coupling.
The driving mechanism for rocker arm of above-mentioned linear actuators, the wherein sleeve pipe of this rocking arm and the mutual socket of this coupling and make this rocking arm and the mutual interlock of this driving screw.
The driving mechanism for rocker arm of above-mentioned linear actuators, wherein this driving nut comprises a section and connects a thread section of this section, this section has a plurality of projections in the side in abutting connection with this thread section, this first pad is provided with a plurality of caulking grooves relatively, and this first pad fixes on these a plurality of projections by these a plurality of caulking grooves.
The driving mechanism for rocker arm of above-mentioned linear actuators wherein also comprises a plurality of springs, and this section is provided with a plurality of containing grooves in the side correspondence towards this first pad, and these a plurality of springs are placed in these a plurality of containing grooves and replace this first pad.
The driving mechanism for rocker arm of above-mentioned linear actuators, wherein the outer edge surface of this thread section is provided with a plurality of first screw threads, and the internal face that this nut is worn tube is provided with a plurality of second screw threads relatively, and this nut is worn tube and is screwed on this thread section by these a plurality of second screw threads.
For reaching above-mentioned purpose, the utility model provides a kind of linear actuators, and it comprises:
One electric driver mechanism comprises a support and is fixed on this support and can produces a motor of clockwise and anticlockwise;
One driving screw is subjected to this motoring and produces rotation;
One outer tube is set in this driving screw outside and is fixed in this support one end;
One telescopic pipe, cross-under are inner and can it does telescopic moving relatively at this outer tube; And
One driving mechanism for rocker arm, comprise a rocking arm, drive nut with one of the transmission that is spirally connected mutually of this driving screw, be socketed in the outer telescopic pipe sleeve of this driving nut, press from both sides one first pad of pulling between this driving nut and this telescopic pipe sleeve, the nut of cross-under between this driving nut and this telescopic pipe sleeve wears tube and folder is pulled and worn second pad of 1 between the tube at this telescopic pipe sleeve and this nut; rocking arm comprise a handgrip and with a sleeve pipe of this handgrip interlock; this sleeve pipe and the mutual interlock of this driving screw; the outer periphery of this telescopic pipe sleeve are provided with a plurality of screw threads of affixed this telescopic pipe, this nut are worn tube and this driving nut interlock each other.
Above-mentioned linear actuators, wherein this driving mechanism for rocker arm also comprises a coupling that connects this driving screw, this rocking arm connects this driving screw by this coupling.
Above-mentioned linear actuators, wherein this driving screw has a positive stop and a backstop, and this positive stop and this backstop are separated front and back two sides that are arranged on described driving screw.
Above-mentioned linear actuators wherein also comprises a preceding brake switch and a back brake switch, and this preceding brake switch and this back brake switch are separated front and back two sides that are arranged on this outer tube inside.
Above-mentioned linear actuators, wherein this driving nut comprises a section and connects a thread section of this section, this section has a plurality of projections in the side in abutting connection with this thread section, and this first pad is provided with a plurality of caulking grooves relatively, and this first pad fixes on these a plurality of projections by these a plurality of caulking grooves.
Above-mentioned linear actuators, wherein this driving mechanism for rocker arm also comprises a plurality of springs, and this section is provided with a plurality of containing grooves in the side correspondence towards this first pad, and these a plurality of springs are placed in these a plurality of containing grooves and replace this first pad.
Above-mentioned linear actuators, wherein the outer edge surface of this thread section is provided with a plurality of first screw threads, and the internal face that this nut is worn tube is provided with a plurality of second screw threads relatively, and this nut is worn tube and is screwed on this thread section by these a plurality of second screw threads.
Compared to existing, linear actuators of the present utility model has driving mechanism for rocker arm.Driving mechanism for rocker arm connects driving screw by coupling, uses to substitute motor when can't powering, and drives the linear actuators running.Moreover driving mechanism for rocker arm of the present utility model is when driving nut and be obstructed, and the frictional force of driving screw and driving nut is worn frictional force between the tube greater than first pad, second pad and nut.The telescopic pipe sleeve produces between first pad and second pad and skids, and wears tube and dally with respect to driving nut and nut.Accordingly, the telescopic pipe sleeve namely breaks away from the axial driving of driving screw, and the telescopic pipe on the telescopic pipe sleeve also stops mobile.Avoid by this linear actuators excessively to displacement, the peace of increase using.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to restriction of the present utility model.
Description of drawings
The three-dimensional appearance signal of Fig. 1 linear actuators of the present utility model and driving mechanism for rocker arm thereof;
The assembled sectional view of Fig. 2 rocking arm of the present utility model;
One of three-dimensional exploded view of Fig. 3 driving mechanism for rocker arm of the present utility model;
Two of the three-dimensional exploded view of Fig. 4 driving mechanism for rocker arm of the present utility model;
The assembled sectional view of Fig. 5 driving mechanism for rocker arm of the present utility model;
One of action schematic representation of Fig. 6 linear actuators of the present utility model and driving mechanism for rocker arm thereof;
Two of the action schematic representation of Fig. 7 linear actuators of the present utility model and driving mechanism for rocker arm thereof.
Wherein, reference character
1 ... linear actuators
2 ... preceding brake switch
3 ... back brake switch
10 ... electric driver mechanism
11 ... support
12 ... motor
20 ... driving screw
21 ... positive stop
22 ... backstop
30 ... outer tube
40 ... telescopic pipe
50 ... driving mechanism for rocker arm
51 ... rocking arm
511 ... handgrip
512 ... sleeve pipe
52 ... drive nut
520 ... containing groove
521 ... the head section
522 ... thread section
5,221 first screw threads
523 projections
53 ... the telescopic pipe sleeve
54 ... first pad
541 caulking grooves
55 ... nut is worn tube
551 second screw threads
56 ... second pad
57 ... spring
60 ... coupling
Embodiment
Relevant detailed description of the present utility model and technology contents, conjunction with figs. is described as follows, however appended accompanying drawing only provides reference and explanation usefulness, and the present invention is limited.
Please refer to Fig. 1, show the three-dimensional appearance schematic representation of linear actuators of the present utility model and driving mechanism for rocker arm thereof.Linear actuators 1 of the present utility model comprises an electric driver mechanism 10, a driving screw 20, an outer tube 30, a telescopic pipe 40 and a driving mechanism for rocker arm 50.This electric driver mechanism 10 drives this driving screw 20 rotations.This telescopic pipe 40 is to drive by this driving screw 20 to move forward and backward.Again, under the situation that unregulated power provides, the start of this driving mechanism for rocker arm 50 can drive this driving screw 20 and produce rotation.
In the present embodiment, this driving screw 20 tools, one positive stop 21 and a backstop 22.This positive stop 21 and this backstop 22 are to separate front and back two sides that are arranged on this driving screw 20.When this driving screw 20 rotated a segment distance forward, this driving mechanism for rocker arm 50 can be subjected to stopping of this positive stop 21 and stop to move forward.Similarly, when this driving screw 20 rotated a segment distance backward, this driving mechanism for rocker arm 50 can be subjected to stopping of this backstop 21 and stop to move backward.Prevent that by this this linear actuators 1 from producing over-travel.
Perhaps, this linear actuators 1 can arrange a preceding brake switch 2 and a back brake switch 3 that electrically connects this motor 12 in addition, and this preceding brake switch 2 and this back brake switch 3 are to separate front and back two sides that are arranged on these outer tube 30 inside.After this driving screw 20 rotated a segment distance backward or backward, this preceding brake switch 2 and this back brake switch 3 can make this electric driver mechanism 10 shut down, and this driving screw 20 is stopped operating.
This electric driver mechanism 10 comprises a support 11 and is fixed on this support 11 and can produces a motor 12 of clockwise and anticlockwise.This driving screw 20 is driven by this motor 12 and produces rotation.This outer tube 30 is set in these driving screw 20 outsides and is fixed in this support 11 1 ends.These telescopic pipe 40 cross-under are inner and can it does telescopic moving relatively at this outer tube 30.The structure of this driving mechanism for rocker arm 50 describe in detail as after.
Please continue with reference to Fig. 2 to Fig. 5, be respectively the assembled sectional view of rocking arm of the present utility model, two three-dimensional exploded views of driving mechanism for rocker arm and the assembled sectional view of driving mechanism for rocker arm.This driving mechanism for rocker arm 50 comprises that a Rocker arm 51, drives nut 52, a telescopic pipe sleeve 53, one first pad 54, a nut and wears tube 55 and 1 second pad 56.
This Rocker arm 51 comprise a handgrip 511 and with a sleeve pipe 512 of these handgrip 511 interlocks, and this sleeve pipe 512 is and these driving screw 20 mutual interlocks.This driving mechanism for rocker arm 50 also comprises a coupling 60 that connects this driving screw 20.This Rocker arm 51 connects this driving screw 20 by this coupling 60.In present embodiment, the sleeve pipe 512 of this Rocker arm 51 makes this Rocker arm 51 and these driving screw 20 mutual interlocks with these coupling 60 mutual sockets.
The transmission that is spirally connected mutually of this driving nut 52 and this driving screw 20.This telescopic pipe sleeve 53 is socketed in outside this driving nut 52, and the outer periphery of this telescopic pipe sleeve 53 are provided with a plurality of screw threads 531 of affixed this telescopic pipe 40.
In addition, this first pad 54 and this second pad 56 are wear plate.These first pad, 54 folders are pulled between this driving nut 52 and this telescopic pipe sleeve 53.This nut wear 55 in tube be cross-under between this drivings nut 52 and this telescopic pipe sleeve 53, and with this driving nut 52 interlock each other.These second pad, 56 folders are pulled and are worn between the tube 55 at this telescopic pipe sleeve 53 and this nut.
In an embodiment of the present utility model, this driving nut 52 comprises a section 521 and connects a thread section 522 of this section 521.This section 521 has a plurality of projections 523 in the side in abutting connection with this thread section 522.This first pad 54 is provided with a plurality of caulking grooves 541 relatively, and this first pad 54 is to fix on those projections 523 by those caulking grooves 541.
In addition, the outer edge surface of this thread section 522 is provided with a plurality of first screw threads 5221.The internal face that this nut is worn tube 55 is provided with a plurality of second screw threads 551 relatively.This nut is worn tube 55 and is screwed on this thread section 522 by those second screw threads 551.
Preferably, this driving mechanism for rocker arm 50 also comprises a plurality of springs 57.This section 521 is provided with a plurality of containing grooves 520 in the side correspondence towards this first pad 54.Those springs 57 are to be placed in those containing grooves 520 and to replace this first pad 54.
Please consult Fig. 6 and Fig. 7 simultaneously, be respectively two action schematic representation of linear actuators of the present utility model and driving mechanism for rocker arm thereof.The running of rocking arm rotation of the present utility model or motor all can drive this driving screw 20 and produce rotation.As shown in Figure 6, when this Rocker arm 51 was rotated towards a direction, this driving screw 20 can be axially mobile forward.At this moment, the frictional force of this driving screw 20 and this driving nut 52 is worn the frictional force of tube between 55 less than this first pad 54, this second pad 53 and this nut.This driving nut 52 and this nut are worn tube 55 can pull that to drive this telescopic pipe sleeve 53 linear mobile toward previous crops together by the folder of this first pad 54 and this second pad 53, and 40 of the telescopic pipes on this telescopic pipe sleeve 53 can be protruding.
Then, when this driving nut 52 and this nut were worn tube 55 and moved to the position of this positive stop 21, this drivings nut 52 or this nut were worn tube 55 and are subjected to stopping of this positive stop 21 and stop movement.At this moment, the frictional force of this driving screw 20 and this driving nut 52 is worn the frictional force of tube between 55 greater than this first pad 54, this second pad 53 and this nut.This driving nut 52 and this nut are worn tube 52 and can beginning be relatively rotated with this driving screw 20.This telescopic pipe sleeve 53 produces between this first pad 54 and this second pad 56 and skids, and makes this telescopic pipe sleeve 53 wear tube 55 with respect to this driving nut 52 and this nut and dallies.Accordingly, this telescopic pipe sleeve 53 namely breaks away from the driving of this driving screw 20, and the telescopic pipe 40 on this telescopic pipe sleeve 53 also stops mobile.
As shown in Figure 7, when this Rocker arm 51 rotated towards other direction, this driving screw 20 can be axially mobile backward.This driving nut 52 and this nut are worn tube 55 and can be pulled by the folder of this first pad 54 and this second pad 53 and drive this telescopic pipe sleeve 53 and do linear mobile together backward.At this moment, 40 of telescopic pipes on this telescopic pipe sleeve 53 can inwardly be withdrawn.
In like manner, when this driving nut 52 moved to the position of this backstop 22, this driving nut 52 was subjected to stopping of this backstop 22 and stops mobile.At this moment, this driving nut 52 and this nut are worn tube 52 and can beginning be relatively rotated with this driving screw 20.53 in this telescopic pipe sleeve produces between this first pad 54 and this second pad 56 and skids, and makes this telescopic pipe sleeve 53 wear tube 55 with respect to this driving nut 52 and this nut and dallies.This telescopic pipe sleeve 53 namely breaks away from the driving of this driving screw 20, and the telescopic pipe 40 on this telescopic pipe sleeve 53 also stops mobile.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (13)
1. the driving mechanism for rocker arm of a linear actuators, described linear actuators has a driving screw and a telescopic pipe, it is characterized in that, and this driving mechanism for rocker arm comprises:
One rocking arm, comprise a handgrip and with a sleeve pipe of this handgrip interlock, and this sleeve pipe and the mutual interlock of described driving screw;
One drives nut, with the transmission that is spirally connected mutually of described driving screw;
One telescopic pipe sleeve is socketed in outside this driving nut, and the outer periphery of this telescopic pipe sleeve are provided with a plurality of screw threads of affixed described telescopic pipe;
One first pad, folder is pulled between this driving nut and this telescopic pipe sleeve;
One nut is worn tube, and cross-under drives between nut and this telescopic pipe sleeve at this, and drives nut interlock each other with this; And
One second pad, folder is pulled and is worn between the tube at this telescopic pipe sleeve and this nut.
2. the driving mechanism for rocker arm of linear actuators according to claim 1 is characterized in that, also comprises a coupling that connects this driving screw, and this rocking arm connects this driving screw by this coupling.
3. the driving mechanism for rocker arm of linear actuators according to claim 2 is characterized in that, the sleeve pipe of this rocking arm and the mutual socket of this coupling and make this rocking arm and the mutual interlock of this driving screw.
4. the driving mechanism for rocker arm of linear actuators according to claim 1, it is characterized in that, this driving nut comprises a section and connects a thread section of this section, this section has a plurality of projections in the side in abutting connection with this thread section, this first pad is provided with a plurality of caulking grooves relatively, and this first pad fixes on these a plurality of projections by these a plurality of caulking grooves.
5. the driving mechanism for rocker arm of linear actuators according to claim 4, it is characterized in that, also comprise a plurality of springs, this section is provided with a plurality of containing grooves in the side correspondence towards this first pad, and these a plurality of springs are placed in these a plurality of containing grooves and replace this first pad.
6. the driving mechanism for rocker arm of linear actuators according to claim 4, it is characterized in that, the outer edge surface of this thread section is provided with a plurality of first screw threads, and the internal face that this nut is worn tube is provided with a plurality of second screw threads relatively, and this nut is worn tube and is screwed on this thread section by these a plurality of second screw threads.
7. a linear actuators is characterized in that, comprising:
One electric driver mechanism comprises a support and is fixed on this support and can produces a motor of clockwise and anticlockwise;
One driving screw is subjected to this motoring and produces rotation;
One outer tube is set in this driving screw outside and is fixed in this support one end;
One telescopic pipe, cross-under are inner and can it does telescopic moving relatively at this outer tube; And
One driving mechanism for rocker arm, comprise a rocking arm, drive nut with one of the transmission that is spirally connected mutually of this driving screw, be socketed in the outer telescopic pipe sleeve of this driving nut, press from both sides one first pad of pulling between this driving nut and this telescopic pipe sleeve, the nut of cross-under between this driving nut and this telescopic pipe sleeve wears tube and folder is pulled and worn second pad of 1 between the tube at this telescopic pipe sleeve and this nut; rocking arm comprise a handgrip and with a sleeve pipe of this handgrip interlock; this sleeve pipe and the mutual interlock of this driving screw; the outer periphery of this telescopic pipe sleeve are provided with a plurality of screw threads of affixed this telescopic pipe, this nut are worn tube and this driving nut interlock each other.
8. linear actuators according to claim 7 is characterized in that, this driving mechanism for rocker arm also comprises a coupling that connects this driving screw, and this rocking arm connects this driving screw by this coupling.
9. linear actuators according to claim 7 is characterized in that, this driving screw has a positive stop and a backstop, and this positive stop and this backstop are separated front and back two sides that are arranged on described driving screw.
10. linear actuators according to claim 7 is characterized in that, also comprises a preceding brake switch and a back brake switch, and this preceding brake switch and this back brake switch are separated front and back two sides that are arranged on this outer tube inside.
11. linear actuators according to claim 7, it is characterized in that, this driving nut comprises a section and connects a thread section of this section, this section has a plurality of projections in the side in abutting connection with this thread section, this first pad is provided with a plurality of caulking grooves relatively, and this first pad fixes on these a plurality of projections by these a plurality of caulking grooves.
12. linear actuators according to claim 11, it is characterized in that, this driving mechanism for rocker arm also comprises a plurality of springs, and this section is provided with a plurality of containing grooves in the side correspondence towards this first pad, and these a plurality of springs are placed in these a plurality of containing grooves and replace this first pad.
13. linear actuators according to claim 11, it is characterized in that, the outer edge surface of this thread section is provided with a plurality of first screw threads, and the internal face that this nut is worn tube is provided with a plurality of second screw threads relatively, and this nut is worn tube and is screwed on this thread section by these a plurality of second screw threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220742099 CN203051659U (en) | 2012-12-28 | 2012-12-28 | Linear actuator and rocker arm driving mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220742099 CN203051659U (en) | 2012-12-28 | 2012-12-28 | Linear actuator and rocker arm driving mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051659U true CN203051659U (en) | 2013-07-10 |
Family
ID=48734615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220742099 Expired - Lifetime CN203051659U (en) | 2012-12-28 | 2012-12-28 | Linear actuator and rocker arm driving mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051659U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443709A (en) * | 2015-12-14 | 2016-03-30 | 广州市金鑫宝电子有限公司 | Rocker mechanism |
| CN105987658A (en) * | 2015-02-13 | 2016-10-05 | 郑佳明 | Linear actuator capable of measuring distance |
| CN110017357A (en) * | 2019-03-22 | 2019-07-16 | 湖北三江航天万峰科技发展有限公司 | A kind of auto-manual straight-line motion mechanism and auto-manual operating method |
| WO2024066777A1 (en) * | 2022-09-26 | 2024-04-04 | 德沃康科技集团有限公司 | Linear driver with hand-cranking function |
-
2012
- 2012-12-28 CN CN 201220742099 patent/CN203051659U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987658A (en) * | 2015-02-13 | 2016-10-05 | 郑佳明 | Linear actuator capable of measuring distance |
| CN105443709A (en) * | 2015-12-14 | 2016-03-30 | 广州市金鑫宝电子有限公司 | Rocker mechanism |
| CN105443709B (en) * | 2015-12-14 | 2016-12-21 | 广州市金鑫宝电子有限公司 | A kind of endplay device |
| CN110017357A (en) * | 2019-03-22 | 2019-07-16 | 湖北三江航天万峰科技发展有限公司 | A kind of auto-manual straight-line motion mechanism and auto-manual operating method |
| WO2024066777A1 (en) * | 2022-09-26 | 2024-04-04 | 德沃康科技集团有限公司 | Linear driver with hand-cranking function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |