CN108799461A - A kind of linear actuator - Google Patents
A kind of linear actuator Download PDFInfo
- Publication number
- CN108799461A CN108799461A CN201810895064.0A CN201810895064A CN108799461A CN 108799461 A CN108799461 A CN 108799461A CN 201810895064 A CN201810895064 A CN 201810895064A CN 108799461 A CN108799461 A CN 108799461A
- Authority
- CN
- China
- Prior art keywords
- reducer shell
- linear actuator
- motor base
- motor
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000013011 mating Effects 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 5
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 16
- 239000000428 dust Substances 0.000 abstract description 15
- 239000000314 lubricant Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H2057/085—Bearings for orbital gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Sealing Devices (AREA)
- Transmission Devices (AREA)
Abstract
The invention 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 coordinated with the secondary planet frame, and the first sealing ring being adapted to the planetary gear set is provided 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 present invention relates to power transmission device matching component technical field, more particularly to a kind of linear actuator.
Background technology
In current technical field of power equipment, linear actuator reduction box 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 can lead to tooth
Foot wheel abrasion generates dust particale and in equipment running process, is easily sent 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 to the whole normal operation of linear actuator
It adversely affects.
Therefore, the phenomenon that leaks for how avoiding occurring in the linear actuator course of work lubricant grease or dust particale, is protected
It is that those skilled in the art need the important technological problems solved at present to demonstrate,prove equipment stable operation.
Invention content
The object of the present invention is to provide a kind of linear actuator, the component sealing effect of the linear actuator is preferable, work
It will not occur lubricant grease during work or dust particale leaks phenomenon, can fully ensure that equipment stable operation.
In order to solve the above technical problems, the present invention provides a kind of linear actuator, including reducer shell, the retarder
One end of 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 the motor
One end be provided with the motor base being fixedly connected with the motor, and it is relatively quiet between the motor base and the reducer shell
Only, the inside of the reducer shell is additionally provided with the planetary gear set coordinated with the secondary planet frame, the motor base it is interior
The first sealing ring being adapted to the planetary gear set is provided on end 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 coordinates 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 technology, linear actuator provided by the present invention, in the course of work, the first sealing ring can
Reducer shell inner space is reliably sealed, to effectively avoid the lubricant grease thrown away in planetary gear set operational process or tooth
The dust particale generated in wheel operation process at reducer shell via leaking to external environment, to avoid the phases such as external motors
It closes equipment to be adversely affected by the lubricant grease or dust particale to leak, and then fully ensures that the linear actuator and its phase
Close the reliable and stable operation of equipment.
It is be bonded close by glue-line between the motor base and the mating surface of the motor in another preferred embodiment of the present invention
Envelope.Realize that motor base is fixedly connected with the reliable contraposition between motor by the glue-line, while using the glue-line to motor and motor
Mating surface between seat implements effectively sealing, to avoid lubricant grease and dust particale inside reducer shell etc. via motor
It leaks at cooperation between motor base, and then the black box sealing structure effect of the linear actuator is enable further to carry
It is high.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure sectional view for the linear actuator that specific implementation mode is provided of the present invention.
Wherein, 11- reducer shells, 12- motors, 13- motor bases, the first sealing rings of 131-, 132- seal grooves, 14 planets
Wheel group, 141- secondary planets frame, 142- retarders gear ring, 15- spring bearings, the second sealing rings of 161-, 162- gasket seals.
Specific implementation mode
Core of the invention is to provide a kind of linear actuator, and the component sealing effect of the linear actuator is preferable, work
It will not occur lubricant grease during work or dust particale leaks phenomenon, can fully ensure that equipment stable operation.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Referring to FIG. 1, Fig. 1 is a kind of structure sectional view for the linear actuator that specific implementation mode is provided of the present invention.
In a specific embodiment, linear actuator provided by the present invention, including reducer shell 11, reducer shell
11 one end 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, slows down
The inside of device shell 11 is additionally provided with the planetary gear set 14 coordinated with secondary planet frame 141, is arranged on the inner face of motor base 13
There is 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 to external environment at fast device shell 11, 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 when equipment practical set is run, above-mentioned planetary gear set 14 generally includes to be sequentially connected and suitable
Sun gear, primary planet carrier and the planet tooth etc. being connect with secondary planet frame 141 of secondary transmission, 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 that relevant gear adapter structure is adjusted flexibly, in principle, as long as disclosure satisfy that the linear actuator
Actual use needs.
In addition 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 ensure 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 the mating surface using the glue-line 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 the black box sealing structure effect of linear actuator is made to be further improved.
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 between motor base 13 and reducer shell 11 and its linkage consistency, 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 cross section of the similar outer wall for referring to motor base 13 of the shape and the inner wall of reducer shell 11
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
Ensure 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 outer wall of motor base 13 and the cross section of the inner wall of reducer shell 11 specific in practical application
On the architecture basics of heart similar fitgures, the outer wall of motor base 13 and the cross section of the inner wall of reducer shell 11 are not limited to
" D " shape described in text flexibly selects motor after staff can consider the factors such as practical set needs and difficulty of processing
The cross sectional shape of the outer wall of seat 13 and the inner wall of reducer shell 11, in principle, as long as disclosure satisfy that the linear actuator
Actual use need.
In addition, keyway coordinates between the outer wall and the inner wall of reducer shell 11 of motor base 13.The processing of this kind of keyway cooperation
Difficulty is relatively low, 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 be that the first sealing ring 131 provides reliable structure positioning and sufficient dress
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,
Ensure 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, ensures 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 131 and second sealing ring 161 of above-mentioned first sealing ring is 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 mode in practical application
Circle, in principle, as long as disclosure satisfy that the actual use of 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 it can further increase the fatigue strength and operating mode tolerance of motor base 13, ensure 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 accordingly to improve.
In summary, the linear actuator that provides in the present invention, in the course of work, the first sealing ring can be by retarder
Enclosure interior space reliably seals, to effectively avoid the lubricant grease thrown away in planetary gear set operational process or gear operation mistake
The dust particale generated in journey via being leaked at reducer shell to external environment, to avoid the relevant devices such as external motors by
To the adverse effect of the lubricant grease or dust particale that leak, and then fully ensure that the linear actuator and its relevant device
Reliable and stable operation.
Linear actuator provided by the present invention is described in detail above.Specific case used herein is to this
The principle and embodiment of invention is expounded, the explanation of above example is only intended to help understand the present invention method and
Its core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection of the claims in the present invention
In range.
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 coordinated with the secondary planet frame, 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 coordinate.
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 two 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 |
|---|---|---|---|
| CN201810895064.0A CN108799461A (en) | 2018-08-08 | 2018-08-08 | A kind of linear actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895064.0A CN108799461A (en) | 2018-08-08 | 2018-08-08 | A kind of linear actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108799461A true CN108799461A (en) | 2018-11-13 |
Family
ID=64079486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810895064.0A Pending CN108799461A (en) | 2018-08-08 | 2018-08-08 | A kind of linear actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108799461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133750A (en) * | 2019-06-25 | 2020-12-25 | 华润微电子（重庆）有限公司 | Deep trench power device and preparation method thereof |
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| CN204729557U (en) * | 2015-07-01 | 2015-10-28 | 上海振华重工集团(南通)传动机械有限公司 | A kind of shield machine operator dish driving gearbox |
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| CN106678283A (en) * | 2017-01-17 | 2017-05-17 | 北京因时机器人科技有限公司 | Small linear driver with position feedback function |
| CN106989176A (en) * | 2017-05-03 | 2017-07-28 | 埃夫特智能装备股份有限公司 | A kind of robot flip side assembling device |
| US20180172113A1 (en) * | 2015-08-18 | 2018-06-21 | Shenzhen Zhaowei Machinery & Electronics Co., Ltd. | Low-noise car trunk reducer |
| CN208595213U (en) * | 2018-08-08 | 2019-03-12 | 北京因时机器人科技有限公司 | A kind of linear actuator |
-
2018
- 2018-08-08 CN CN201810895064.0A patent/CN108799461A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080001625U (en) * | 2006-12-04 | 2008-06-10 | 현대중공업 주식회사 | Tab structure |
| CN201396407Y (en) * | 2009-05-26 | 2010-02-03 | 杨玉华 | Planet reduction gear for farming machine |
| CN103762779A (en) * | 2014-01-27 | 2014-04-30 | 北京阳铭诚科技有限责任公司 | Planetary gear reducer of electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112133750A (en) * | 2019-06-25 | 2020-12-25 | 华润微电子（重庆）有限公司 | Deep trench power device and preparation method thereof |
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