CN204153084U - There is the linear actuator of twin-screw - Google Patents
There is the linear actuator of twin-screw Download PDFInfo
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- CN204153084U CN204153084U CN201420501111.6U CN201420501111U CN204153084U CN 204153084 U CN204153084 U CN 204153084U CN 201420501111 U CN201420501111 U CN 201420501111U CN 204153084 U CN204153084 U CN 204153084U
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- continuous motion
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- motion stem
- driving screw
- driving
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Abstract
The utility model provides a kind of linear actuator with twin-screw, its be on the pedestal of drive unit for be provided with can driving cluster gear rotate drive portion, and gear train link driving mechanism outer sleeve inside be nested with socket in hole and be positioned with a continuous motion stem, and be bolted with the first driving screw and the second driving screw respectively in first spiro union portion at continuous motion stem two side place and the second spiro union portion, when outer sleeve be nested with hole turn ejection on continuous motion stem time continuous motion stem can be made to rotate simultaneously, namely by the first spiro union portion of continuous motion stem, second spiro union portion respectively turn pass in the first driving screw with relative relative to continuous motion stem on the second driving screw in or to outer displacement, and utilize the resisting part at the first driving screw side place to be incorporated into pedestal inside, so continuous motion stem and the second driving screw can be made as Linear transmission relative to the first driving screw to elongate or shorten the action of displacement when continuous motion stem rotates.
Description
Technical field
The utility model provides a kind of linear actuator with twin-screw, espespecially drive unit can drive the outer sleeve in driving mechanism, and rotated in continuous motion stem by outer sleeve turn ejection, then passed the action making continuous motion stem and the second driving screw elongate or shorten displacement as Linear transmission relative to the first driving screw on the first driving screw and the second driving screw by continuous motion stem turn simultaneously.
Background technique
Press, transmission device uses quite general now, and the transmission device of different types also has different institutions to design the mode with transmission, and can be applicable to as beddo, electric table, massage chair, body-building and Facility for resuming health or other can control to open and close and the device of displacement stroke or equipment, so can do the adjustment of adjustable height or different amount.
Moreover, general transmission device is the sliding unit inside being installed in two section type, and be linked to beddo, on electric table or massage chair, make beddo, electric table or massage chair etc. can do the adjustment of upper and lower high and low position or linear extendible displacement, only the extension total length of this transmission device be no more than two sliding units and, and shrink the length that total length is not shorter than arbitrary longer sliding unit, its extension that can reach has certain limitation with contraction displacement stroke, so that the requirement of more height adjustment spacing on market cannot be met, therefore Bian You manufacturer develops 3 stops, the structural design of four-part form or Multi-stage slide unit, not only there is longer elongation with outside shorter retraction amount compared with the sliding unit of two section type, and sliding unit stretch out or retraction displacement travelling speed on also faster, therefore, the transmission device with Multi-stage slide unit has become the main flow on market, and be widely used on the device of association area or equipment and use.
But, above-mentioned transmission device is for including first driving screw that can rotate by the transmission of driving mechanism institute, and Linear transmission made by the second driving screw that tandem on the first driving mechanism is provided with the second driving mechanism, because transmission device product correlation technique is full-fledged, it can become comparatively limited for the space of setting about carrying out improving, so the mode that the stability of the overall transmission of transmission device can be made more good is there's no one who doesn't or isn't thought hard by manufacturer, to the application on realistic, be need to be engaged in this journey dealer desire most ardently the key point that research improves.
Model utility content
Therefore the utility model designer utilizes the research and development experience for many years engaging in the industry constantly to study and amendment, begin to design the novel birth that this kind has the linear actuator of twin-screw.
For achieving the above object, the technical solution adopted in the utility model is:
There is a linear actuator for twin-screw, it is characterized in that: include drive unit and driving mechanism, wherein:
This drive unit has pedestal, and be provided with on pedestal gear train and can driving cluster gear be one rotate drive portion;
This driving mechanism has the outer sleeve being linked to and gear train rotates in, and be formed at the empty internal of outer sleeve and be nested with hole, and be nested with in hole the hollow continuous motion stem being socketed and being positioned with can rotating for outer sleeve turn ejection simultaneously, and continuous motion stem two side opening place is respectively equipped with the first spiro union portion and the second spiro union portion, and the first spiro union portion be bolted with respectively in the second spiro union portion can rotate for continuous motion stem time turn pass and relative relative to continuous motion stem in or to the first driving screw of outer displacement and the second driving screw, and the first driving screw side place be provided be incorporated into pedestal inner and can rotate for continuous motion stem time make continuous motion stem and the second driving screw elongate or shorten the resisting part of displacement as Linear transmission relative to the first driving screw.
The described linear actuator with twin-screw, wherein: the pedestal inside of this drive unit is formed with containing space, and at least one driven gear of gear train is provided with in containing space inside, and driven gear centre is provided with jack-post, and the outer sleeve side place of driving mechanism be provided be linked to driven gear jack-post on to be combined into one the linking department that outer sleeve is rotated simultaneously.
The described linear actuator with twin-screw, wherein: the drive portion of this drive unit is arranged at pedestal inside or outside, and is provided with at the motor side place that drive portion has the live axle being engaged in and gear train drives this gear train to rotate.
The described linear actuator with twin-screw, wherein: the internal face place, hole that is nested with of this driving mechanism is formed with at least one supporting surface, and the empty internal of continuous motion stem is axially formed with through hole, and be combined with the first spiro union portion and the second spiro union portion at through hole two side opening place, and continuous motion stem outer surface is formed with the passing face that at least one can make continuous motion stem rotate for the supporting surface turn ejection being nested with hole thereon simultaneously.
The described linear actuator with twin-screw, wherein: the first spiro union portion, the second spiro union portion inside of this driving mechanism continuous motion stem have first screw and the second screw that can be spirally connected for the first driving screw and the second driving screw respectively.
The described linear actuator with twin-screw, wherein: the first driving screw side place of this driving mechanism is provided with and is incorporated into pedestal inside and becomes the resisting part that is integrated, and the empty internal of the second driving screw be axially formed can do to shorten displacement for the opposite side place of the first driving screw stretches into relative to outer sleeve place passage.
The described linear actuator with twin-screw, wherein: this drive unit and driving mechanism are linked with further the first sliding unit, the second sliding unit and the 3rd sliding unit that sliding assembly is socketed mutually, and be combined with at the 3rd sliding unit can pass for the second driving screw the top board making the 3rd sliding unit synchronously elongate or shorten displacement as Linear transmission relative to the second sliding unit relative to the second sliding unit opposite side opening.
The described linear actuator with twin-screw, wherein: the second driving screw of this driving mechanism is provided with the pushing part on the top board being incorporated into the 3rd sliding unit relative to the opposite side place of continuous motion stem.
Compared with prior art, the advantage adopting the utility model of technique scheme to have is:
1. this drive unit link driving mechanism outer sleeve inside be nested with Kong Zhongwei socket and be positioned with continuous motion stem, and the first driving screw and the second driving screw is bolted with respectively in first spiro union portion and the second spiro union portion at continuous motion stem two side place, when the drive portion of drive unit drives in gear train, outer sleeve can be driven to rotate on continuous motion stem to be nested with hole turn ejection thereupon simultaneously, namely by the first spiro union portion of continuous motion stem, second spiro union portion respectively turn pass in the first driving screw with relative relative to continuous motion stem on the second driving screw in or to outer displacement, and utilize the resisting part at the first driving screw side place to be incorporated into pedestal inside, so continuous motion stem and the second driving screw can be made as Linear transmission relative to the first driving screw to elongate or shorten the action of displacement when continuous motion stem rotates, so can improve the positive force of its Linear transmission displacement, guarantee the stability of overall transmission.
2. on drive unit and driving mechanism for being linked with the first sliding unit that sliding assembly is socketed mutually, second sliding unit and the 3rd sliding unit, and be incorporated on the top board of the 3rd sliding unit by the second driving screw relative to the pushing part of continuous motion stem opposite side, when drive unit drives in gear train, outer sleeve can be driven to be linked in continuous motion stem turn to be passed on the first driving screw and the second driving screw, and the action synchronously elongating or shortening displacement in the 3rd sliding unit relative to the second sliding unit as Linear transmission is passed by the pushing part of the second driving screw, the adjustment that adjustable height made by external means is promoted for the 3rd sliding unit.
Accompanying drawing explanation
Fig. 1 is stereo appearance figure of the present utility model;
Fig. 2 is three-dimensional exploded view of the present utility model;
Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model;
Fig. 4 is the side cutaway view before the utility model preferred embodiment uses;
Side cutaway view when Fig. 5 is the utility model preferred embodiment use;
Fig. 6 is the side cutaway view after the utility model preferred embodiment uses.
Description of reference numerals: 1-drive unit; 10-containing space; 11-pedestal; 12-gear train; 121-driven gear; 122-jack-post; 13-drive portion; 131-motor; 132-live axle; 2-driving mechanism; 21-outer sleeve; 211-linking department; 2111-positioning hole; 212-is nested with hole; 213-supporting surface; 22-continuous motion stem; 220-through hole; 221-first spiro union portion; 2211-first screw; 222-second spiro union portion; 2221-second screw; 223-passes face; 23-first driving screw; 231-resisting part; 24-second driving screw; 240-places passage; 241-pushing part; 3-sliding assembly; 31-first sliding unit; 32-second sliding unit; 33-the 3rd sliding unit; 331-top board.
Embodiment
For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, just preferred embodiment of the present utility model of hereby drawing illustrates that its structure is as follows with function in detail, understands completely in order to do profit.
Refer to shown in Fig. 1, Fig. 2, Fig. 3, be respectively the three-dimensional exploded view at stereo appearance figure of the present utility model, three-dimensional exploded view and another visual angle, find out by knowing in figure, the utility model for including drive unit 1 and driving mechanism 2, wherein:
This drive unit 1 is for having the pedestal 11 of hollow, its pedestal 11 inside is formed with containing space 10, and the gear train 12 of at least one driven gear of tool (as worm gear) 121 is provided with in containing space 10 inside, and driven gear 121 centre is provided with the jack-post 122 protruding out two side surface places, and gear train 12 is arranged at the inner or outside drive portion 13 of pedestal 11 for being linked with, and is provided with at the motor 131 side place that drive portion 13 has to be engaged in and driven gear 121 drives it be the live axle (as worm screw) 132 of a rotation.
This driving mechanism 2 is for having outer sleeve 21, and be provided with linking department 211 at outer sleeve 21 side place, and the positioning hole 2111 that linking department 211 inside has is combined into one for utilizing on the jack-post 122 of socket mode driven gear 121, just motor 131 can be relied on to drive makes outer sleeve 21 rotate in gear train 12 thereupon simultaneously, and the empty internal of outer sleeve 21 is nested with hole 212 for being formed with one, and be nested with internal face place, hole 212 and be formed with the supporting surface 213 of at least one smooth shape.
Moreover, being nested with in hole 212 as socket is positioned with continuous motion stem 22 of outer sleeve 21, the empty internal of its continuous motion stem 22 is axially formed with a through hole 220, and utilize at the through hole 220 2 side opening place of continuous motion stem 22 and to be spirally connected or welding manner is combined with the first spiro union portion 221 and the second spiro union portion 222 respectively, and the first screw 2211 that the first spiro union portion 221 and the second spiro union portion 222 empty internal have, be bolted with respectively in second screw 2221 relative relative to continuous motion stem 22 in or to the first driving screw 23 and the second driving screw 24 of outer displacement, at least one passing face 223 that continuous motion stem 22 can be made thereon simultaneously to rotate for the supporting surface 213 turn ejection being nested with hole 212 is formed with again in continuous motion stem 22 outer surface.
But, the first above-mentioned driving screw 23 side place is provided with the resisting part 231 being incorporated into pedestal 11 inside and becoming to be integrated, this resisting part 231 can through driven gear 121 centre of gear train 12, and in the standing block hole of pedestal 11, recycling latch, screw or other fixed element are arranged in resisting part 231 and are combined into one, can not drive in the first driving screw 23 rotation when gear train 12 is rotated, and the empty internal of the second driving screw 24 be axially formed can do to shorten displacement for the opposite side place of the first driving screw 23 stretches in the inner relative to outer sleeve 21 place passage 240, and the second driving screw 24 is provided with a pushing part 241 relative to the opposite side place of continuous motion stem 22.
In addition, drive unit 1 of the present utility model and driving mechanism 2 are to be linked with mutual the first sliding unit 31 be socketed of sliding assembly 3 further, second sliding unit 32 and the 3rd sliding unit 33, and it is inner directly to support or be incorporated into pedestal 11 by the first sliding unit 31, the pushing part 241 of the second driving screw 24 is then incorporated on the top board 331 that the 3rd sliding unit 33 combines relative to the second sliding unit 32 opposite side opening place, the linear actuator so the utility model with twin-screw is applied to external means (as beddo, electric table, massage chair etc.), elevator mechanism or other device or equipment use, and make the joint (not shown) of pedestal 11 and the 3rd sliding unit 33 can utilize bolt respectively, on the connecting rod that the components such as locating stud are incorporated into external means in the mode of pivot joint or bracket, just drive unit 1 can be relied on to drive manipulate sliding assembly 3 in the first driving mechanism 2 and elongate or shorten displacement as Linear transmission.
Please arrange in pairs or groups and consult Fig. 4, Fig. 5, shown in Fig. 6, be respectively the side cutaway view before the utility model preferred embodiment use, side cutaway view during use and the side cutaway view after using, find out by knowing in figure, when the motor 131 of drive portion 13 drives that meshed gears group 12 is rotated in one on live axle 132, the outer sleeve 21 of driving mechanism 2 can be driven on the passing face 223 of continuous motion stem 22, to make continuous motion stem 22 rotate to be nested with hole 212 turn ejection by driven gear 121 thereupon simultaneously, and in the process of continuous motion stem 22 turn, namely by the first spiro union portion 221 of continuous motion stem 22, second spiro union portion 222 respectively turn pass in the first driving screw 23 with the second driving screw 24 and relative relative to continuous motion stem 22 in or to outer displacement, and utilize the resisting part 231 of the first driving screw 23 inner for being incorporated into pedestal 11, and the pushing part 241 of the second driving screw 24 be incorporated into the 3rd sliding unit 33 top board 331 on can not produce rotation, so when continuous motion stem 22 turn is passed, continuous motion stem 22 and the second driving screw 24 can be made as Linear transmission relative to the first driving screw 23 synchronously to elongate or shorten the action of displacement, make the pushing part 241 of the second driving screw 24 pass simultaneously and synchronously elongate or shorten the action of displacement in the 3rd sliding unit 33 as Linear transmission relative to the second sliding unit 32, just the 3rd sliding unit 33 can be relied on to promote the adjustment making adjustable height in external means, this kind of drive unit 1 drives the outer sleeve 21 in driving mechanism 2 to coordinate the structural design of continuous motion stem 22 transmission first driving screw 23 and the second driving screw 24, the positive force of its Linear transmission displacement can be improved, guarantee the stability of overall transmission.
More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection domain of the present utility model.
Claims (8)
1. there is a linear actuator for twin-screw, it is characterized in that: include drive unit and driving mechanism, wherein:
This drive unit has pedestal, and be provided with on pedestal gear train and can driving cluster gear be one rotate drive portion;
This driving mechanism has the outer sleeve being linked to and gear train rotates in, and be formed at the empty internal of outer sleeve and be nested with hole, and be nested with in hole the hollow continuous motion stem being socketed and being positioned with can rotating for outer sleeve turn ejection simultaneously, and continuous motion stem two side opening place is respectively equipped with the first spiro union portion and the second spiro union portion, and the first spiro union portion be bolted with respectively in the second spiro union portion can rotate for continuous motion stem time turn pass and relative relative to continuous motion stem in or to the first driving screw of outer displacement and the second driving screw, and the first driving screw side place be provided be incorporated into pedestal inner and can rotate for continuous motion stem time make continuous motion stem and the second driving screw elongate or shorten the resisting part of displacement as Linear transmission relative to the first driving screw.
2. the linear actuator with twin-screw according to claim 1, it is characterized in that: the pedestal inside of this drive unit is formed with containing space, and at least one driven gear of gear train is provided with in containing space inside, and driven gear centre is provided with jack-post, and the outer sleeve side place of driving mechanism be provided be linked to driven gear jack-post on to be combined into one the linking department that outer sleeve is rotated simultaneously.
3. the linear actuator with twin-screw according to claim 2, it is characterized in that: the drive portion of this drive unit is arranged at pedestal inside or outside, and is provided with at the motor side place that drive portion has the live axle being engaged in and gear train drives this gear train to rotate.
4. the linear actuator with twin-screw according to claim 1, it is characterized in that: the internal face place, hole that is nested with of this driving mechanism is formed with at least one supporting surface, and the empty internal of continuous motion stem is axially formed with through hole, and be combined with the first spiro union portion and the second spiro union portion at through hole two side opening place, and continuous motion stem outer surface is formed with the passing face that at least one can make continuous motion stem rotate for the supporting surface turn ejection being nested with hole thereon simultaneously.
5. the linear actuator with twin-screw according to claim 1, is characterized in that: the first spiro union portion, the second spiro union portion inside of this driving mechanism continuous motion stem have first screw and the second screw that can be spirally connected for the first driving screw and the second driving screw respectively.
6. the linear actuator with twin-screw according to claim 1, it is characterized in that: the first driving screw side place of this driving mechanism is provided with and is incorporated into pedestal inside and becomes the resisting part that is integrated, and the empty internal of the second driving screw be axially formed can do to shorten displacement for the opposite side place of the first driving screw stretches into relative to outer sleeve place passage.
7. the linear actuator with twin-screw according to claim 1, it is characterized in that: this drive unit and driving mechanism are linked with further the first sliding unit, the second sliding unit and the 3rd sliding unit that sliding assembly is socketed mutually, and be combined with at the 3rd sliding unit can pass for the second driving screw the top board making the 3rd sliding unit synchronously elongate or shorten displacement as Linear transmission relative to the second sliding unit relative to the second sliding unit opposite side opening.
8. the linear actuator with twin-screw according to claim 7, is characterized in that: the second driving screw of this driving mechanism is provided with the pushing part on the top board being incorporated into the 3rd sliding unit relative to the opposite side place of continuous motion stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501111.6U CN204153084U (en) | 2014-09-01 | 2014-09-01 | There is the linear actuator of twin-screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501111.6U CN204153084U (en) | 2014-09-01 | 2014-09-01 | There is the linear actuator of twin-screw |
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| Publication Number | Publication Date |
|---|---|
| CN204153084U true CN204153084U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420501111.6U Active CN204153084U (en) | 2014-09-01 | 2014-09-01 | There is the linear actuator of twin-screw |
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| CN (1) | CN204153084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387707A (en) * | 2017-06-16 | 2017-11-24 | 东莞市特姆优传动科技有限公司 | A kind of three-stage electric pushrod structure |
-
2014
- 2014-09-01 CN CN201420501111.6U patent/CN204153084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387707A (en) * | 2017-06-16 | 2017-11-24 | 东莞市特姆优传动科技有限公司 | A kind of three-stage electric pushrod structure |
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