CN109185411A - A kind of multi-stage electric cylinder - Google Patents
A kind of multi-stage electric cylinder Download PDFInfo
- Publication number
- CN109185411A CN109185411A CN201811278508.2A CN201811278508A CN109185411A CN 109185411 A CN109185411 A CN 109185411A CN 201811278508 A CN201811278508 A CN 201811278508A CN 109185411 A CN109185411 A CN 109185411A
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- CN
- China
- Prior art keywords
- screw rod
- cylinder barrel
- cylinder
- fixed
- stage electric
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- 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
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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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a kind of multi-stage electric cylinders, including multi-filament bar and its screw matched one by one；Multi-filament bar is that tubulose is set with from inside to outside, and other than most interior screw rod, the rear end of every screw rod is fixed on screw joined together by an interior screw rod；Cylinder barrel, the corresponding cylinder barrel ecto-entad suit of every screw rod are fixed on screw joined together by every screw rod；It is sleeved on the screw rod of innermost layer to be fixed with and cover in outermost cylinder barrel；Cylinder barrel and screw rod are fixed with rear end.The present invention 1. structure type it is compact, suitable for being used under various load behaviors；2. stability is more preferable；3. having bigger thrust；4. reliable operation does not generate the problems such as shaking abnormal sound.
Description
Technical field
The present invention relates to a kind of multi-stage electric cylinders, belong to technical field of mechanical design.
Background technique
Multi-stage electric cylinder is widely used in each field, because multistage electric cylinders are flexible and changeable on application form, is efficiently solved
Electric cylinder installation space size-constraints, the stretching ratio of overlength, extremely strong environmental suitability, stability make multi-stage electric cylinder
Application prospect it is bright.But it is had the following deficiencies: in existing multi-stage motor cylinder technology 1. multistage in existing technology
Due to since contact surface is big, easily forming glued phenomenon between interior outer cylinder under the action of lubricating grease, when starting, needs huge cylinder
Detent torque；2. the application form of unilateral feather key will cause torque unbalance loading phenomenon in the prior art, cause to tremble in the application
The problem of dynamic and rotational efficienty drastically reduces, it is very big to the aging effects of screw rod and screw pair；3. stability is insufficient, it is also easy to produce different
Loud or unbalance loading, using limited under heavy load operating condition.
Summary of the invention
In order to solve the above technical problems, the multi-stage electric cylinder can effectively solve the present invention provides a kind of multi-stage electric cylinder
Big detent torque in the prior art, shake, abnormal sound and stability problem.
The present invention is achieved by the following technical programs.
A kind of multi-stage electric cylinder provided by the invention, including multi-filament bar and its screw matched one by one；Multi-filament bar is
Tubulose is set with from inside to outside, and other than most interior screw rod, the rear end of every screw rod is fixed on screw joined together by an interior screw rod
On；Cylinder barrel, the corresponding cylinder barrel ecto-entad suit of every screw rod are fixed on screw joined together by every screw rod；In being sleeved on most
It is fixed with and is covered in outermost cylinder barrel on the screw rod of layer；Cylinder barrel and screw rod are fixed with rear end.
Covering has inner support in outermost screw rod front end, and inner support is outside boss structure.
Other than covering in outermost cylinder barrel, feather key is respectively and fixedly provided on each cylinder barrel outer wall.
Described is that two symmetrical compositions are fixed on each cylinder barrel outer wall.
Other than covering the cylinder barrel in innermost layer, each cylinder barrel front end is respectively and fixedly provided with safe retaining ring, and safe retaining ring is to opposite
Interior one layer of cylinder barrel limit.
Sealing ring is fixed on the inner face of safe retaining ring.
In the multi-filament bar, the screw rod of innermost layer is solid screw rod, remaining screw rod is tubular, hollow screw rod.
The inner support is spline structure, and outer end is fillet, and the inner wall of innermost layer cylinder barrel is smooth inner wall, innermost layer cylinder barrel
With inner support clearance fit.
The beneficial effects of the present invention are: 1. structure type it is compact, suitable for being used under various load behaviors；2. stability
More preferably；3. having bigger thrust；4. reliable operation does not generate the problems such as shaking abnormal sound.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure: 1- level-one screw rod, 2- outer cylinder, 3- level-one screw, 4- second level screw rod, 5- second level screw, 6- second level cylinder barrel,
The safe retaining ring of 7- level-one, 8- fixed card ring, 9- level-one feather key, 10- level-one cylinder barrel, 11- second level feather key, 12- sealing ring,
13- secondary safety retaining ring, 14- inner support.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
The present invention provides a kind of multi-stage electric cylinders, including multi-filament bar and its screw matched one by one；Multi-filament bar is
Tubulose is set with from inside to outside, and other than most interior screw rod, the rear end of every screw rod is fixed on screw joined together by an interior screw rod
On；Cylinder barrel, the corresponding cylinder barrel ecto-entad suit of every screw rod are fixed on screw joined together by every screw rod；In being sleeved on most
It is fixed with and is covered in outermost cylinder barrel on the screw rod of layer；Cylinder barrel and screw rod are fixed with rear end.
Covering has inner support 14 in outermost screw rod front end, and inner support 14 is outside boss structure.
Other than covering in outermost cylinder barrel, feather key is respectively and fixedly provided on each cylinder barrel outer wall.
Described is that two symmetrical compositions are fixed on each cylinder barrel outer wall.
Other than covering the cylinder barrel in innermost layer, each cylinder barrel front end is respectively and fixedly provided with safe retaining ring, and safe retaining ring is to opposite
Interior one layer of cylinder barrel limit.
Sealing ring is fixed on the inner face of safe retaining ring.
In the multi-filament bar, the screw rod of innermost layer is solid screw rod, remaining screw rod is tubular, hollow screw rod.
The inner support 14 is spline structure, and outer end is fillet, and the inner wall of innermost layer cylinder barrel is smooth inner wall, innermost layer cylinder
Cylinder and 14 clearance fit of inner support.
As follows by taking two screw rods as an example:
Embodiment 1
There are level-one screw rod 1 and second level screw rod 4,1 rear end of level-one screw rod is fixed with 2 sets of outer cylinder in outermost layer, in level-one silk
There is level-one screw 3 to match on bar 1, second level screw rod 4 is fixed on level-one screw 3, there is the matching of second level screw 5 on second level screw rod 4
It closes, is fixed with 6 sets of second level cylinder barrel outside second level screw rod 4 on second level screw 5,10 sets of level-one cylinder barrel is fixed on level-one screw 3 and is existed
Outside second level cylinder barrel 6,2 sets of outer cylinder outside second level cylinder barrel 6；Level-one feather key 9, second level cylinder barrel are fixed on 10 outer wall of level-one cylinder barrel
Second level feather key 11 is fixed on 6 outer walls；Outer cylinder 2 is fixedly arranged at the front end with the safe retaining ring 7 of level-one and limits to level-one cylinder barrel 10, second level
Cylinder barrel 6 is fixedly arranged at the front end with secondary safety retaining ring 13 and limits to second level cylinder barrel 6, in the safe retaining ring 7 of level-one and secondary safety retaining ring 13
There is sealing ring 12 in face.As the setting of manufacture easy to process, 10 rear end of level-one cylinder barrel is fixed by screws in fixed card ring 8
On, fixed card ring 8 is fixed by screws on level-one screw 3.
It can be seen that the working principle of the invention is the linear motion for converting the rotary motion of input to output, pass through
Mechanical cylinder it is flexible, complete the demand of each mechanical organ linear motion, have compact-sized, release that stroke is big, launch force is big, fortune
The advantages that row is stablized, and manufacture assembly is simple.
Claims (8)
1. a kind of multi-stage electric cylinder, including multi-filament bar and its screw matched one by one, it is characterised in that: multi-filament bar is tubulose
It is set with from inside to outside, other than most interior screw rod, the rear end of every screw rod is fixed on screw joined together by an interior screw rod；Often
Cylinder barrel, the corresponding cylinder barrel ecto-entad suit of every screw rod are fixed on screw joined together by root screw rod；It is sleeved on innermost layer
It is fixed with and is covered in outermost cylinder barrel on screw rod；Cylinder barrel and screw rod are fixed with rear end.
2. multi-stage electric cylinder as described in claim 1, it is characterised in that: covering has inner support (14) in outermost screw rod front end,
Inner support (14) is outside boss structure.
3. multi-stage electric cylinder as described in claim 1, it is characterised in that: other than covering in outermost cylinder barrel, each cylinder
Feather key is respectively and fixedly provided on drum outer wall.
4. multi-stage electric cylinder as claimed in claim 3, it is characterised in that: be two symmetrical compositions on each cylinder barrel outer wall
It is fixed.
5. multi-stage electric cylinder as described in claim 1, it is characterised in that: other than covering the cylinder barrel in innermost layer, each cylinder
Cylinder front end is respectively and fixedly provided with safe retaining ring, and safe retaining ring limits relatively interior one layer of cylinder barrel.
6. multi-stage electric cylinder as claimed in claim 5, it is characterised in that: be fixed with sealing ring on the inner face of safe retaining ring.
7. multi-stage electric cylinder as described in claim 1, it is characterised in that: in the multi-filament bar, the screw rod of innermost layer is real
Heart screw rod, remaining screw rod are tubular, hollow screw rod.
8. multi-stage electric cylinder as claimed in claim 2, it is characterised in that: the inner support (14) is spline structure, and outer end is
Fillet, the inner wall of innermost layer cylinder barrel are smooth inner wall, innermost layer cylinder barrel and inner support (14) clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278508.2A CN109185411A (en) | 2018-10-30 | 2018-10-30 | A kind of multi-stage electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278508.2A CN109185411A (en) | 2018-10-30 | 2018-10-30 | A kind of multi-stage electric cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185411A true CN109185411A (en) | 2019-01-11 |
Family
ID=64940670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811278508.2A Pending CN109185411A (en) | 2018-10-30 | 2018-10-30 | A kind of multi-stage electric cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113098190A (en) * | 2021-04-13 | 2021-07-09 | 西安索睿科技有限公司 | Single-wire rod driven multi-stage lifting electric cylinder and transmission method |
-
2018
- 2018-10-30 CN CN201811278508.2A patent/CN109185411A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113098190A (en) * | 2021-04-13 | 2021-07-09 | 西安索睿科技有限公司 | Single-wire rod driven multi-stage lifting electric cylinder and transmission method |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |