CN108599456A - A kind of tail draws commutating structure and linear actuators - Google Patents
A kind of tail draws commutating structure and linear actuators Download PDFInfo
- Publication number
- CN108599456A CN108599456A CN201810500233.6A CN201810500233A CN108599456A CN 108599456 A CN108599456 A CN 108599456A CN 201810500233 A CN201810500233 A CN 201810500233A CN 108599456 A CN108599456 A CN 108599456A
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- CN
- China
- Prior art keywords
- tail
- end cap
- shell
- locating
- draws
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of tails to draw commutating structure, belong to Linear transmission technical field, it is drawn including tail, the tail is pulled on equipped with the mounting groove for fixing driven object body, the tail drawing is installed on a shell and part is stretched out outside shell, the tail draws rotational installation in shell, it further includes positioning end cap that the tail, which draws commutating structure, end cap releasable connection is positioned in shell, the positioning end cap is located at the axial side of tail drawing, the peripheral side and positioning end cap that the tail is drawn, one of them is equipped with more than two circumferentially spaced first locating slots, another is equipped with for matching the locating convex block for being inserted into the first locating slot, the locating convex block is inserted into the first locating slot, it is circumferentially rotated with limiting the tail drawing.Invention additionally discloses a kind of linear actuators.The advantage of the invention is that can capable commutation quickly be drawn in tail.
Description
【Technical field】
The present invention relates to a kind of tails to draw commutating structure and linear actuators, belongs to Linear transmission technical field.
【Background technology】
Linear actuators, also referred to as electric pushrod are widely used in furniture, Medical Devices, solar power generation etc. field,
Primary structure includes driving motor, geared worm, worm gear, lead screw, nut, and operation principle is that driving motor driving geared worm turns
Dynamic, geared worm is engaged with worm gear to drive worm gear to rotate, and worm gear rotation drives lead screw rotation, lead screw rotation to drive nut shaft
To movement, nut is generally connected with inner tube, to realize the telescopic moving of inner tube.
It is connected with driven object body in order to facilitate linear actuators, linear actuators generally includes shell, and cage connection has
One tail is drawn, and the tail in currently available technology is drawn, and typically includes a mounting groove, and mounting groove penetrates through a locking hole, driven object
Body is installed in mounting groove and is assembled in tail by fastening member and pulls on.
Since the shape, structure of driven object body is very more, it is orientation installation that driven object body, which is installed in mounting groove,
So as to cause Linear actuator when driving different driven object bodies, the circumferential direction that tail is drawn is to need centainly to be replaced
, the existing method for replacing the circumferential direction that tail is drawn typically integrally dismantles shell, after then rotating tail drawing certain angle,
Shell reinstalls fixation again, and such commutation method needs dismantle entire shell, very troublesome.
【Invention content】
A kind of tail drawing commutating structure is provided technical problem to be solved by the present invention lies in overcome the deficiencies in the prior art
And linear actuators, can row switch operation quickly be drawn in tail.
Above-mentioned technical problem is solved, the present invention adopts the following technical scheme that：
A kind of tail drawing commutating structure, including tail are drawn, and the tail is pulled on equipped with the mounting groove for fixing driven object body, institute
It states tail drawing to be installed on outside a shell and part stretching shell, the tail draws rotational installation in shell, and the tail draws commutating structure also
Including positioning end cap, in shell, the positioning end cap is located at the axial side of tail drawing for positioning end cap releasable connection, and the tail is drawn outer
Side and positioning end cap, one of them is equipped with more than two circumferentially spaced first locating slots, another, which is equipped with, uses
It is inserted into the locating convex block of the first locating slot in matching, the locating convex block is inserted into the first locating slot, is drawn circumferentially to limit the tail
Rotation.
Advantageous effect using the present invention：
In the present invention, tail drawing is rotatablely installed inside the shell, and when being not provided with other positioning elements, tail is drawn can be with
It is freely rotated in embedding slot；
In the present invention, it is mounted with a positioning end cap on the shell, the peripheral side and positioning end cap that tail is drawn are set on one of them
There are two above first locating slots, another is equipped with for matching the locating convex block for being inserted into the first locating slot, fixed using first
The cooperation of position slot and locating convex block can prevent tail drawing from circumferentially rotating, and when needing to draw in row switch operation to tail, only need
Positioning end cap is removed so that locating convex block and the first locating slot are detached from, and tail drawing can be freely rotated, when rotation predetermined angular
Afterwards, then again positioning end cap is reinstalled, locating convex block is allowed to be matched with another first locating slot, to complete commutation behaviour
Make.
For traditional tail draws switch operation, the present invention need not integrally dismantle shell, it is only necessary to which it is fixed to remove
Position end cap, it is very convenient；It draws commutation that need not dismount shell additionally, due to tail, does not interfere with zero of enclosure
Part, the assembly relation between parts are more stablized；Finally, due to position the axial side that end cap is located at tail drawing, work as locating convex block
After being inserted into the first locating slot, the two forms certain positioning in the axial direction, is produced so that positioning end cap can also draw tail
Raw certain axial limiting effect, prevents tail from drawing axial movement value excessive.
Preferably, first locating slot is located on the peripheral side of tail drawing, the locating convex block is located at positioning end cap
On inner face.
Preferably, described at least two first locating slots are circumferentially evenly distributed on the peripheral side of tail drawing.
Preferably, the circumferential angle between adjacent first locating slot is 20 °~180 °.
Preferably, the shell is equipped with the second locating slot corresponding with the locating convex block position, the positioning
End cap is positioned at by the second locating slot on shell in circumferential direction, first locating slot and the connection of the second locating slot, described
A locating convex block part is located in the first locating slot, and another part is located in the second locating slot.
Preferably, on the axial direction that tail is drawn, the wall surface of the locating convex block and the wall surface of the first locating slot offset.
Preferably, the peripheral side that the tail is drawn has radially extended bulge loop, and on the axial direction that tail is drawn, the positioning end
The inner face of lid and the outer end face of bulge loop offset.
Preferably, the shell is equipped with the storage tank of the accommodating positioning end cap.
Preferably, being equipped with embedding slot in the shell, it includes being embedded in section that the tail, which is drawn, and the embedded section is rotatably installed in
It is limited in embedding slot, and on axial direction in the embedding slot.
In addition, the invention also discloses a kind of linear actuators, including driving motor, geared worm, worm gear, lead screw and spiral shell
Mother, the linear actuators draw commutating structure using the tail described in any one of the above scheme.
These features and advantages of the present invention will the detailed exposure in following specific implementation mode, attached drawing.
【Description of the drawings】
Following further describes the present invention with reference to the drawings：
Fig. 1 is the schematic diagram of one linear actuators of the embodiment of the present invention；
Fig. 2 is that schematic diagram after end cap is split is positioned in one linear actuators of the embodiment of the present invention；
Fig. 3 is the exploded perspective view one of positioning end cap in one linear actuators of the embodiment of the present invention, tail drawing, shell；
Fig. 4 is the exploded perspective view two of positioning end cap in one linear actuators of the embodiment of the present invention, tail drawing, shell；
Fig. 5 is the axial schematic elevation view that end cap is positioned in one linear actuators of the embodiment of the present invention.
【Specific implementation mode】
The technical solution of the embodiment of the present invention is explained and illustrated with reference to the attached drawing of the embodiment of the present invention, but under
It states embodiment to be merely a preferred embodiment of the present invention, and not all.Based on the implementation example in the implementation mode, those skilled in the art
Obtained other embodiment without making creative work, belongs to protection scope of the present invention.
In the following description, occur the indicating positions such as term "inner", "outside", "upper", "lower", "left", "right" or
Position relationship is to be based on the orientation or positional relationship shown in the drawings, description embodiment merely for convenience and simplified description, and
It is not instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, because
This is not considered as limiting the invention.
Embodiment one
As shown in Figure 1, a kind of linear actuators of the present embodiment, the present embodiment linear actuator includes driving motor, passes
Dynamic worm screw 11, worm gear 12, lead screw, nut, driving motor connect geared worm 11, and geared worm 11 drives worm gear 12 to rotate, snail
12 rotation of wheel drives lead screw rotation, and lead screw rotation drives nut axial movement, in addition, the present embodiment further includes shell 2, outer tube
13, inner tube 14, shell 2 are connect with outer tube 13, and the nut is connect with inner tube 14, and the axial movement of nut is eventually exhibited as inner tube
Axially opposing displacement between 14 and outer tube 13, the shell 2 in the present embodiment include first shell and second shell 201, in order to
Display internal structure, first shell is facilitated to be not shown in Fig. 1.
Linear actuators in the present embodiment further includes that tail draws 3, and the tail draws 3 to be equipped with for fixing driven object body
Mounting groove 31, the tail draws 3 connect with shell 2 and part is stretched out outside shell 2, the drawing of tail described in the present embodiment 3 be rotatablely installed in
Shell 2, positioning end cap 4 is also equipped on the shell 2, and positioning end cap 4 draws 3 composition tails to draw commutating structures, the positioning with tail
4 releasable connection of end cap is located at the axial side that tail draws 3 in shell 2, the positioning end cap 4, and axial direction as referred to herein refers both to lead screw
Axial direction, the tail draw 3 peripheral side and positioning end cap 4, one of them is equipped with two or more circumferentially spaced the
A positioning groove 32, another is equipped with for matching the locating convex block 41 for being inserted into the first locating slot 32, and the locating convex block 41 is inserted
Enter the first locating slot 32, draws 3 to circumferentially rotate to limit the tail.It should be noted that the tail in the present embodiment draws commutating structure,
It is not limited to apply the linear actuators in the present embodiment displaying, the linear actuators in other structures can also be applied
In.
In the present embodiment, be mounted with a positioning end cap 4 on shell 2, tail draws 3 peripheral side and positioning end cap 4, wherein it
One is equipped with more than two first locating slots 32, another is equipped with for matching the locating convex block for being inserted into the first locating slot 32
41, using the cooperation of the first locating slot 32 and locating convex block 41, it can prevent tail from drawing 3 to circumferentially rotate, when needing to tail drawing 3
When carrying out switch operation, it is only necessary to remove positioning end cap 4 so that locating convex block 41 and the first locating slot 32 are detached from, and tail drawing 3 is just
Can be freely rotated, after rotating predetermined angular, then again reinstall positioning end cap 4, allow locating convex block 41 with another the
A positioning groove 32 matches, to complete switch operation.
For traditional tail draws 3 switch operations, 2 entirety of shell need not be dismantled in the present embodiment, it is only necessary to
Positioning end cap 4 is removed, it is very convenient；It draws 3 commutations that need not dismount shell 2 additionally, due to tail, does not interfere in shell 2
The parts in portion, the assembly relation between parts are more stablized；Finally, due to positioning end cap 4 is located at the axial side that tail draws 3,
After locating convex block 41 is inserted into the first locating slot 32, the two forms certain positioning in the axial direction, so that positioning end cap 4
3 can also be drawn to generate certain axial limiting effect tail.It is positioned in the present embodiment on end cap 4 and is preferably provided with perforation 40, it is fixed
When position end cap 4 is installed, from tail draw 3 it is axial be inserted in, 40 sets of perforation tail draw and be connected on shell 2.
Concrete preferred structure is as follows：
As shown in Figures 2 to 5, in the present embodiment, first locating slot 32 is located at tail and draws on 3 peripheral side, described fixed
Position convex block 41 is located on the inner face of positioning end cap 4.It should be noted that those skilled in the art are also readily apparent that, first is fixed
The position of position slot 32 and locating convex block 41 can be interchangeable, i.e. the first locating slot 32 can be located on positioning end cap 4, and convex
Block 41 can then be located at tail and draw on 3 peripheral side.
In order to enable more regular property, described at least two first locating slot 32 are circumferential uniformly when the commutation adjusting of tail drawing 3
It is distributed in the peripheral side that tail draws 3, such user will appreciate that every one grade of rotation is how many angle when rotating tail drawing 3.Certainly, originally
Field technology personnel are also readily apparent that multiple first locating slots 32 can not also be uniformly arranged.
Preferably, being set in tail drawing 3 there are four the first locating slot 32, four the first locating slots 32 are in the present embodiment
It is uniformly arranged on tail to draw on 3 peripheral side, reference can be made to shown in Fig. 5, the circumferential included angle A between adjacent first locating slot 32 is 90 °.
It should be noted that in other embodiments, tail, which is drawn, is not limited to four the first locating slots 32 of setting on 3, can be two
It is a, three, five etc., the circumferential angle between adjacent first locating slot 32 is between 20 °~180.
In the present embodiment, in order to reinforce positioning the position stability between end cap 4 and tail drawing 3, set on the positioning end cap 4
It is preferably three locating convex blocks 41 to have multiple locating convex blocks 41, the present embodiment, i.e., the position of three locating convex blocks 41 is fixed with first
The position of position slot 32 corresponds to, and tail draws 3 often to turn over 90 °, and three locating convex blocks 41, which can correspond to, is inserted into corresponding first locating slot 32
In, it compares for a locating convex block 41 and the first locating slot 32 cooperation, stability is more preferable.
It should be noted that in other embodiments, those skilled in the art are readily apparent that, position and be arranged on end cap 4
One locating convex block 41 of locating convex block 41, four of locating convex block 41, two each falls within protection scope of the present invention.
It is releasable connection on shell 2 that end cap 4 is positioned in the present embodiment, is preferably fixed with trip bolt, in order to reinforce
The position stability between end cap 4 and shell 2 is positioned, the shell 2 is equipped with corresponding with 41 position of the locating convex block
Second locating slot 21, by there are three locating convex blocks 41 in this present embodiment, therefore the second locating slot 21 it is also corresponding there are three, it is described fixed
Position end cap 4 is positioned at by the second locating slot 21 on shell 2 in circumferential direction, is equivalent to positioning end cap 4, on the one hand utilizes fastening
Screw connect the effect realized and prevent positioning end cap 4 from being rotated relative to shell 2 with shell 2, on the other hand also utilizes locating convex block
41 match with the second locating slot 21, and also achieving prevents from positioning the effect that end cap 4 is rotated relative to shell 2, two layers of anti-rotation measure,
So that the effect that is located by connecting between positioning end cap 4 and shell 2 is more preferable.
Since the present embodiment locating convex block 41 is not only matched with the first locating slot 32, but also matched with the second locating slot 21, therefore institute
It states the first locating slot 32 to be connected to the second locating slot 21,41 part of the locating convex block is located in the first locating slot 32, another
Part is located in the second locating slot 21.
In order to reinforce positioning the axially position effect that end cap 4 draws tail 3, the tail draw 3 peripheral side radially extended it is convex
Ring 33, when position end cap 4 be installed on shell 2 after, tail draw 3 axial direction on, it is described positioning end cap 4 inner face with it is convex
The outer end face of ring 33 offsets.When positioning end cap 4 and bulge loop 33 offset in the axial direction, it is equivalent to tail and draws 3 by axial limiting, it can
3 are drawn to lead to the problem of axial float because of long-term stress to reduce tail, it, can also be in positioning end cap if later stage gap is excessive
Washer is added between 4 and bulge loop 33 further draws 3 to carry out axial limiting on tail.
In the present embodiment tail draw 3 be include being embedded in section 301 and main paragraph 302, the outer diameter of embedded section 301 is greater than main paragraph
302,302 part of main paragraph is stretched out outside shell 2, and mounting groove 31 is provided on main paragraph 302, and it is rotational installation to be embedded in section 301
In embedding slot 22 in shell 2, bulge loop 33 described above is provided separately on main paragraph 302, and the first locating slot 32 is excellent
Choosing is arranged on bulge loop 33.It should be noted that those skilled in the art are readily apparent that, and in other embodiments, bulge loop 33
May also mean that embedded section 301, that is, position end cap 4 and directly offset with embedded section 301, and the first locating slot 32 can be located at it is embedded
In section 301, it can also equally be arranged on main paragraph 302, the embodiment of this simple transformation each falls within the protection of the present invention
In range.
In the present embodiment, embedding slot 22 itself 301 also has axial limiting effect to being embedded in section, the present embodiment preferably,
It is also equipped with bearing 15 in embedding slot 22, therefore is equivalent to bearing 15 in the present embodiment, is embedded in 301 entirety of section by axial limiting embedding
In tankage 22.It is equivalent to the embedded section 301 of tail drawing 3 not only by 22 axial limiting of embedding slot, but also by 4 axial limiting of positioning end cap, in fact
Existing bilayer axial limiting is equivalent to bearing also by the double-deck axial limiting after tail drawing 3 is by the double-deck axial limiting.
In order to improve the appearance flatness of shell 2, the shell 2 is equipped with the storage tank 23 of the accommodating positioning end cap 4,
The depth of storage tank 23 is substantially suitable with the positioning thickness of end cap 4, after positioning end cap 4 is completed, positions the outer end of end cap 4
Face substantially with 2 flush of shell, it appears globality is more preferable.
Embodiment two
The difference between this embodiment and the first embodiment lies in bulge loop is not arranged in the present embodiment, position between end cap and tail drawing
Axial limiting, be to be realized using offseting between locating convex block and the first locating slot, be equivalent in circumferential direction, convex
The side of block and the side of the first locating slot offset, and in the axial direction, the end face of locating convex block and the first locating slot
Inner face be also to offset, i.e. the matching of locating convex block and the first locating slot had both realized circumferential limit, and had also achieved axial direction
Limit.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, is familiar with
The those skilled in the art should be understood that the present invention includes but not limited to attached drawing and interior described in specific implementation mode above
Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the range of claims.
Claims (10)
1. a kind of tail draws commutating structure, including tail to draw, the tail is pulled on equipped with the mounting groove for fixing driven object body, described
Tail drawing is installed on a shell and part is stretched out outside shell, which is characterized in that the tail draws rotational installation in shell, and the tail drawing is changed
Further include positioning end cap to structure, in shell, the positioning end cap is located at the axial side of tail drawing, described for positioning end cap releasable connection
The peripheral side and positioning end cap that tail is drawn, one of them is equipped with more than two circumferentially spaced first locating slots, another
It is equipped with for matching the locating convex block for being inserted into the first locating slot, the locating convex block is inserted into the first locating slot, described in limitation
Tail drawing circumferentially rotates.
2. tail as described in claim 1 draws commutating structure, which is characterized in that first locating slot is located at the peripheral side of tail drawing
On, the locating convex block is located on the inner face of positioning end cap.
3. tail as claimed in claim 2 draws commutating structure, which is characterized in that described at least two first locating slots are circumferentially uniform
It is distributed in the peripheral side of tail drawing.
4. tail as claimed in claim 3 draws commutating structure, which is characterized in that the circumferential angle between adjacent first locating slot is
20 °~180 °.
5. tail as claimed in claim 2 draws commutating structure, which is characterized in that the shell is equipped with and the locating convex block position
Corresponding second locating slot is set, the positioning end cap is positioned at by the second locating slot on shell in circumferential direction, and described
A positioning groove is connected to the second locating slot, and the locating convex block part is located in the first locating slot, and another part is located at second
In locating slot.
6. tail as described in claim 1 draws commutating structure, which is characterized in that the peripheral side that the tail is drawn has radially extended convex
Ring, on the axial direction that tail is drawn, the inner face of the positioning end cap and the outer end face of bulge loop offset.
7. tail as described in claim 1 draws commutating structure, which is characterized in that on the axial direction that tail is drawn, the convex
The wall surface of block and the wall surface of the first locating slot offset.
8. tail as described in claim 1 draws commutating structure, which is characterized in that the shell, which is equipped with, houses the positioning end cap
Storage tank.
9. tail as described in claim 1 draws commutating structure, which is characterized in that be equipped with embedding slot in the shell, the tail is drawn
Including being embedded in section, the embedded section is rotatably installed in embedding slot, and is limited on axial direction in the embedding slot.
10. a kind of linear actuators, including driving motor, geared worm, worm gear, lead screw and nut, which is characterized in that the line
Property actuator using as described in one of claim 1 to 9 tail drawing commutating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500233.6A CN108599456A (en) | 2018-05-23 | 2018-05-23 | A kind of tail draws commutating structure and linear actuators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500233.6A CN108599456A (en) | 2018-05-23 | 2018-05-23 | A kind of tail draws commutating structure and linear actuators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108599456A true CN108599456A (en) | 2018-09-28 |
Family
ID=63632678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810500233.6A Pending CN108599456A (en) | 2018-05-23 | 2018-05-23 | A kind of tail draws commutating structure and linear actuators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108599456A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922574A (en) * | 2021-10-15 | 2022-01-11 | 浙江万可电气设备有限公司 | Plateau high altitude motor reversing power switching device |
-
2018
- 2018-05-23 CN CN201810500233.6A patent/CN108599456A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922574A (en) * | 2021-10-15 | 2022-01-11 | 浙江万可电气设备有限公司 | Plateau high altitude motor reversing power switching device |
| CN113922574B (en) * | 2021-10-15 | 2022-09-30 | 浙江万可电气设备有限公司 | Plateau high altitude motor reversing power switching device |
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