CN208595213U - A kind of linear actuator - Google Patents
A kind of linear actuator Download PDFInfo
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- CN208595213U CN208595213U CN201821271104.6U CN201821271104U CN208595213U CN 208595213 U CN208595213 U CN 208595213U CN 201821271104 U CN201821271104 U CN 201821271104U CN 208595213 U CN208595213 U CN 208595213U
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- reducer shell
- motor base
- linear actuator
- motor
- wall
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Abstract
The utility model discloses a kind of linear actuators, including reducer shell, one end of the reducer shell is provided with motor, the other end is provided with secondary planet frame, the inside of the reducer shell is provided with the motor base being fixedly connected with the motor close to one end of the motor, and it is opposing stationary between the motor base and the reducer shell, the inside of the reducer shell is additionally provided with the planetary gear set with secondary planet frame cooperation, is provided with the first sealing ring being adapted to the planetary gear set on the inner face of the motor base.The component sealing effect of the linear actuator is preferable, will not occur lubricant grease in the course of work or dust particale leaks phenomenon, can fully ensure that equipment stable operation.
Description
Technical field
The utility model relates to power transmission device matching component technical field, in particular to a kind of linear actuator.
Background technique
In current technical field of power equipment, linear actuator reduction gearbox is usually planetary reduction box, internal to rely on
Gear drive needs lubricating oil or lubricating grease to be lubricated the primary drives part such as gear；The transmission process of gear will lead to tooth
Foot wheel abrasion generates dust particale and in equipment running process, easily sends out since existing linear actuator self structure is limited
The phenomenon that leaks of raw lubricant grease or dust particale especially leaks simultaneously if lubricating grease or dust particale leak to device external
The side where motor is polluted, the performance of other transmission parts can be seriously affected, and operate normally to the entirety of linear actuator
It adversely affects.
Therefore, the phenomenon that leaks that lubricant grease or dust particale occur in the linear actuator course of work how is avoided, is protected
Card equipment stable operation is the important technological problems that those skilled in the art need to solve at present.
Utility model content
The purpose of the utility model is to provide a kind of linear actuator, the component sealing effect of the linear actuator is preferable,
It will not occur lubricant grease in its course of work or dust particale leaks phenomenon, can fully ensure that equipment stable operation.
In order to solve the above technical problems, the utility model provides a kind of linear actuator, including reducer shell, it is described to subtract
One end of fast device shell is provided with motor, and the other end is provided with secondary planet frame, and the inside of the reducer shell is close to described
One end of motor is provided with the motor base being fixedly connected with the motor, and opposite between the motor base and the reducer shell
Static, the inside of the reducer shell is additionally provided with the planetary gear set with secondary planet frame cooperation, the motor base
The first sealing ring being adapted to the planetary gear set is provided on inner face.
Preferably, pass through glue-line adhering and sealing between the motor base and the mating surface of the motor.
Preferably, it is interference fitted between the motor base and the reducer shell.
Preferably, shape is similar between the outer wall of the motor base and the inner wall of the reducer shell and is bonded and is adapted to.
Preferably, the cross section of the inner wall of the cross section of the outer wall of the motor base and the reducer shell is
" D " shape.
Preferably, keyway cooperates between the outer wall of the motor base and the inner wall of the reducer shell.
Preferably, there is the seal groove being adapted to the planetary gear set, described first is close on the inner face of the motor base
Seal is located in the seal groove.
Preferably, the peripheral part of the planetary gear set is provided with retarder gear ring, the seal groove and the retarder tooth
Circle contraposition adaptation.
Preferably, one end of the secondary planet frame is provided with spring bearing inside the reducer shell, it is described
Mutually matched second sealing ring and gasket seal are provided between spring bearing and the planetary gear set.
Preferably, the motor base is polyether-ether-ketone product or ceramic objects.
Relatively above-mentioned background technique, linear actuator provided by the utility model, in the course of work, the first sealing ring
Reducer shell inner space can reliably be sealed, to effectively avoid the lubricant grease thrown away in planetary gear set operational process
Or gear operation during generate dust particale via leaking at reducer shell to external environment, to avoid external motors
Equal relevant devices by the lubricant grease to leak or the adverse effect of dust particale, and then fully ensure that the linear actuator and
The reliable and stable operation of its relevant device.
It is viscous by glue-line between the motor base and the mating surface of the motor in another preferred embodiment of the utility model
Connect sealing.Realize that motor base is fixedly connected with the reliable contraposition between motor by the glue-line, at the same using the glue-line to motor and
Mating surface between motor base implements effectively sealing, thus avoid lubricant grease and dust particale inside reducer shell etc. via
It leaks at cooperation between motor and motor base, and then keeps the black box sealing structure effect of the linear actuator further
It improves.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure sectional view of linear actuator provided by a kind of specific embodiment of the utility model.
Wherein, 11- reducer shell, 12- motor, 13- motor base, the first sealing ring of 131-, 132- seal groove, 14 planets
Wheel group, 141- secondary planet frame, 142- retarder gear ring, 15- spring bearing, the second sealing ring of 161-, 162- gasket seal.
Specific embodiment
The core of the utility model is to provide a kind of linear actuator, and the component sealing effect of the linear actuator is preferable,
It will not occur lubricant grease in its course of work or dust particale leaks phenomenon, can fully ensure that equipment stable operation.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for mode.
Referring to FIG. 1, Fig. 1 is the structure section view of linear actuator provided by a kind of specific embodiment of the utility model
Figure.
In a specific embodiment, linear actuator provided by the utility model, including reducer shell 11, retarder
One end of shell 11 is provided with motor 12, and the other end is provided with secondary planet frame 141, and the inside of reducer shell 11 is close to motor
12 one end is provided with the motor base 13 being fixedly connected with motor 12, and opposing stationary between motor base 13 and reducer shell 11,
The inside of reducer shell 11 is additionally provided with the planetary gear set 14 cooperated with secondary planet frame 141, on the inner face of motor base 13
It is provided with the first sealing ring 131 being adapted to planetary gear set 14.
In practical work process, the first sealing ring 131 can reliably seal 11 inner space of reducer shell, to have
Effect avoids the dust particale generated during the lubricant grease thrown away in 14 operational process of planetary gear set or gear operation via subtracting
It leaks at fast device shell 11 to external environment, to avoid the relevant devices such as external motors 12 by the lubricant grease that leaks or micro-
The adverse effect of dirt particle, and then fully ensure that the reliable and stable operation of the linear actuator and its relevant device.
It should be noted that in the operation of equipment practical set, above-mentioned planetary gear set 14 generally includes to be sequentially connected and suitable
Sun gear, primary planet carrier and the planet tooth being connect with secondary planet frame 141 of secondary transmission etc., with guarantee will be by too
The high speed rotation transmission, conversion of Yang Chilunchu is the low speed rotation at secondary planet frame 141, to adapt to the need of downstream power equipment
It wants.Certainly, the structure composition of above-mentioned planetary gear set 14 is not limited to described above in practical application, and staff can basis
Actual condition needs to be adjusted flexibly relevant gear adapter structure, in principle, as long as can satisfy the linear actuator
Actual use needs.
Furthermore it should be noted that it is above-mentioned opposing stationary, refer to motor base 13 and reducer shell in equipment running process
It will not relatively rotate between 11 or the relative motion of other forms, to guarantee that the power of upstream power-equipment input can be complete
It is transferred at downstream power equipment via planetary gear set 14, avoids the power loss in transmission process.
Further, pass through glue-line adhering and sealing between motor base 13 and the mating surface of motor 12.Horse is realized by the glue-line
It is fixedly connected up to the reliable contraposition between seat 13 and motor 12, while using the glue-line to the mating surface between motor 12 and motor base 13
Implement effectively sealing, to avoid lubricant grease and dust particale inside reducer shell 11 etc. via motor 12 and motor base
It leaks at cooperation between 13, and then is further improved the black box sealing structure effect of linear actuator.
Specifically, it is interference fitted between motor base 13 and reducer shell 11.The over-surplus fit structure can be further ensured that
Assembly intensity and its linkage consistency between motor base 13 and reducer shell 11, to further avoid horse in equipment running process
Up to producing relative rotation between seat 13 and reducer shell 11 or the relative motion of other forms.
More specifically, shape is similar between the outer wall of motor base 13 and the inner wall of reducer shell 11 and is bonded and is adapted to.In conjunction with
For actual conditions, the cross section of the inner wall of the cross section and reducer shell 11 of the similar outer wall for referring to motor base 13 of the shape
For concentric similar fitgures, between the two cross section other than size dimension is slightly different, remaining is completely the same, so as to further
Guarantee interference fit effect and its structure linkage between motor base 13 and reducer shell 11 and assemble intensity, further to keep away
Exempt to generate relative motion between motor base 13 and reducer shell 11 in equipment running process.
Further, the cross section of the inner wall of the cross section of the outer wall of motor base 13 and reducer shell 11 is " D "
Shape.It is same in the cross section of the inner wall of the cross section and reducer shell 11 of the outer wall of motor base 13 specific in practical application
In the structure basis of heart similar fitgures, the cross section of the inner wall of the outer wall and reducer shell 11 of motor base 13 is not limited to
" D " shape described in text, after staff can comprehensively consider the factors such as practical set needs and difficulty of processing, flexible choice motor
The cross sectional shape of the inner wall of the outer wall and reducer shell 11 of seat 13, in principle, as long as can satisfy the linear actuator
Actual use need.
In addition, keyway cooperates between the outer wall of motor base 13 and the inner wall of reducer shell 11.The processing of this kind of keyway cooperation
Difficulty is lower, and it is higher to assemble intensity, can effectively ensure that structure linkage between motor base 13 and reducer shell 11 and its
Assemble intensity.
On the other hand, there is the seal groove 132 being adapted to planetary gear set 14, the first sealing ring on the inner face of motor base 13
131 are located in seal groove 132.The seal groove 132 can provide reliable structure positioning and sufficient dress for the first sealing ring 131
With space, in case the first sealing ring 131 generates constructive interference to the equal primary clusterings of planetary gear set 14 inside reducer shell 11,
Guarantee the reliable and stable operation of associated component.
More specifically, the peripheral part of planetary gear set 14 is provided with retarder gear ring 142, seal groove 132 and retarder gear ring
142 contraposition adaptations.Contraposition at the notch of seal groove 132 can be blocked sealing by the retarder gear ring 142, and to the first sealing ring
131 carry out a degree of structure compresses, while further avoiding in equipment running process the first sealing ring 131 by seal groove
Abjection in 132, guarantees the reliable and stable of related seals structure.
In addition, 11 inside of reducer shell is provided with spring bearing 15, spring bearing close to one end of secondary planet frame 141
Mutually matched second sealing ring 161 and gasket seal 162 are provided between 15 and planetary gear set 14.Second sealing ring 161 with
162 coordinated of gasket seal, to avoid inside reducer shell 11 lubricant grease and dust particale etc. via spring bearing
15 with leak at 141 cooperation of secondary planet frame, to further increase the modular construction sealing effect of the linear actuator, protect
Demonstrate,prove the reliable and stable operation of relevant device.
It should be pointed out that above-mentioned first sealing ring 131 and the second sealing ring 161 are both preferably O-ring seal, it is corresponding to adapt to
The ring packing of component needs, but staff can also need to select other kinds of sealing according to operating condition in practical application
Circle, in principle, as long as the actual use that can satisfy the linear actuator needs.
In addition, motor base 13 is polyether-ether-ketone product or ceramic objects.The wearability of polyether-ether-ketone product and ceramic objects
Can preferably the fatigue strength and operating condition tolerance of motor base 13 can be further increased, guarantees the main body of the linear actuator
Component is relatively reliable durable, and the whole service life of its associated component and functional reliability is enable to correspondingly increase.
In summary, the linear actuator provided in the utility model, in the course of work, the first sealing ring can will subtract
Fast device enclosure interior space reliably seals, so that the lubricant grease thrown away in planetary gear set operational process or gear effectively be avoided to transport
The dust particale generated during turning at reducer shell via leaking to external environment, so that the correlations such as external motors be avoided to set
By the adverse effect to the lubricant grease or dust particale that leak, and then fully ensure that the linear actuator and its correlation are set
Standby reliable and stable operation.
Linear actuator provided by the utility model is described in detail above.Specific case used herein
The principles of the present invention and embodiment are expounded, the above embodiments are only used to help understand, and this is practical
Novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this reality
Under the premise of with new principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen into
In the protection scope of the utility model claims.
Claims (10)
1. a kind of linear actuator, it is characterised in that: including reducer shell, one end of the reducer shell is provided with horse
Reach, the other end is provided with secondary planet frame, the inside of the reducer shell close to one end of the motor be provided with it is described
The motor base that motor is fixedly connected, and it is opposing stationary between the motor base and the reducer shell, the reducer shell
Inside is additionally provided with the planetary gear set with secondary planet frame cooperation, is provided with and the row on the inner face of the motor base
First sealing ring of star-wheel group adaptation.
2. linear actuator as described in claim 1, it is characterised in that: lead between the motor base and the mating surface of the motor
Cross glue-line adhering and sealing.
3. linear actuator as described in claim 1, it is characterised in that: interference between the motor base and the reducer shell
Cooperation.
4. linear actuator as claimed in claim 3, it is characterised in that: the outer wall of the motor base and the reducer shell
Inner wall between shape it is similar and be bonded adaptation.
5. linear actuator as claimed in claim 4, it is characterised in that: the cross section of the outer wall of the motor base and described
The cross section of the inner wall of reducer shell is " D " shape.
6. linear actuator as claimed in claim 3, it is characterised in that: the outer wall of the motor base and the reducer shell
Inner wall between keyway cooperate.
7. linear actuator as described in claim 1, it is characterised in that: have and the row on the inner face of the motor base
The seal groove of star-wheel group adaptation, first sealing ring are located in the seal groove.
8. linear actuator as claimed in claim 7, it is characterised in that: the peripheral part of the planetary gear set is provided with retarder
Gear ring, the seal groove are adapted to retarder gear ring contraposition.
9. linear actuator as described in claim 1, it is characterised in that: close to the second level row inside the reducer shell
One end of carrier is provided with spring bearing, and mutually matched second sealing is provided between the spring bearing and the planetary gear set
Circle and gasket seal.
10. linear actuator as described in claim 1, it is characterised in that: the motor base is polyether-ether-ketone product or ceramics
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821271104.6U CN208595213U (en) | 2018-08-08 | 2018-08-08 | A kind of linear actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821271104.6U CN208595213U (en) | 2018-08-08 | 2018-08-08 | A kind of linear actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595213U true CN208595213U (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821271104.6U Active CN208595213U (en) | 2018-08-08 | 2018-08-08 | A kind of linear actuator |
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| Country | Link |
|---|---|
| CN (1) | CN208595213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799461A (en) * | 2018-08-08 | 2018-11-13 | 北京因时机器人科技有限公司 | A kind of linear actuator |
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2018
- 2018-08-08 CN CN201821271104.6U patent/CN208595213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799461A (en) * | 2018-08-08 | 2018-11-13 | 北京因时机器人科技有限公司 | A kind of linear actuator |
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