CN114552863A - Three-level electric cylinder structure with single lead screw rope transmission range increasing function - Google Patents
Three-level electric cylinder structure with single lead screw rope transmission range increasing function Download PDFInfo
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- CN114552863A CN114552863A CN202210150772.8A CN202210150772A CN114552863A CN 114552863 A CN114552863 A CN 114552863A CN 202210150772 A CN202210150772 A CN 202210150772A CN 114552863 A CN114552863 A CN 114552863A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 230000009467 reduction Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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- 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
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
-
- 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
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- 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
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2081—Parallel arrangement of drive motor to screw axis
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a single lead screw rope transmission range-extending three-level electric cylinder structure, which belongs to the technical field of electric cylinder application. The structure form is compact, is applicable to the open-air heavy load operating mode of machineshop car, and stability is good, and the expansion ratio is big, under the equal initial installation distance, provides bigger stroke, and the appearance is littleer, and drive mechanism is simple, and it is big to have solved the multistage electronic jar production and processing degree of difficulty of tradition, problem with high costs, realizes reduction in production cost's purpose.
Description
Technical Field
The invention provides a three-level electric cylinder structure for transmission range extension of a single lead screw rope, and belongs to the technical field of electric cylinder application.
Background
With the development of engineering machinery industry, the electric cylinder has wide application in a plurality of important fields such as industry, agriculture national defense and the like.
The electronic jar structure of tradition multistage on the existing market is mainly in the same place through the suit each other of many screw pairs, and the screw pair at different levels drives the push rod at different levels respectively and realizes stretching out and retracting at electronic jar every level, and the used hollow screw pair processing cost of this kind of structure is high, and the processing degree of difficulty is big, and used electronic jar part structure has the processing complicacy equally, and the installation degree of difficulty is big, and is with high costs, shortcomings such as production cycle length, and electronic jar overall dimension is 1 ~ 2 times of general electronic jar overall dimension of single-stage. Therefore, the invention provides a single lead screw rope transmission range-increasing three-level electric cylinder structure, which adopts the single lead screw rope transmission range-increasing three-level electric cylinder structure to realize extension and retraction of each level of the electric cylinder, thereby reducing the production cost and shortening the production period so as to solve the problems in the prior art.
Disclosure of Invention
Aiming at the problems, the invention provides a single-screw rope transmission range-extended three-level electric cylinder structure, which realizes the extension and retraction of an electric cylinder, solves the defects of high production and processing difficulty and high cost of the traditional multi-level electric cylinder, and enables the whole structure of the electric cylinder to be more compact and the overall dimension to be smaller than that of the traditional multi-level electric cylinder.
In order to achieve the purpose, the invention adopts the following technical scheme:
a single screw rope transmission range-extending three-level electric cylinder structure comprises a push rod assembly, a one-level cylinder barrel assembly, a two-level cylinder barrel assembly, a three-level cylinder barrel assembly, a lead screw assembly, a gear box assembly, a motor and a speed reducer.
The screw pair assembly is sleeved inside the push rod assembly, the push rod assembly is sleeved inside the tertiary cylinder assembly, the tertiary cylinder assembly is sleeved inside the secondary cylinder, and the secondary cylinder is sleeved inside the primary cylinder. The gear box passes through bolt fixed connection with one-level cylinder subassembly, and the driving gear passes through bolt fixed connection with the lead screw, and the reduction gear axle passes through bolt fixed connection with the driven gear, and the reduction gear passes through flange fixed connection with the motor to form complete driving chain. The cylinder barrels in the electric cylinder are sequentially connected through the rope rows, and the extending and retracting actions of the cylinder barrels are realized through the pulleys.
Further, lead screw subassembly passes through screw nut flange joint with the push rod subassembly, and the direction slider is installed to the lead screw tip to support the lead screw tip, and it has the keyway to open simultaneously on the push rod inner wall, and the direction slider cooperates with the keyway, and it is spacing to carry out the circumference of push rod, ensures that screw nut rotary motion can change into the linear motion of push rod.
Furthermore, the push rod is sleeved inside the three-stage cylinder barrel, a cylinder extending pulley is arranged at the end part of the push rod, one end of a steel wire rope is fixed on a flange of the three-stage cylinder barrel and bypasses the cylinder extending pulley, the other end of the steel wire rope is fixed on a steel wire rope fixing frame at the tail part of the lead screw, and when the push rod does linear motion, the length of the steel wire rope is unchanged, so that the three-stage cylinder barrel is axially displaced relative to the push rod, and the linear motion of the three-stage cylinder is further realized.
Further, the second grade cylinder suit is inside the one-level cylinder, and screw nut passes through flange bolted connection with the second grade cylinder flange, and screw nut is rotatory to make the second grade cylinder do linear motion, and this while, screw nut drives second grade cylinder and tertiary cylinder and carries out linear motion simultaneously, realizes the action of stretching out of multistage jar. The relative position of the secondary cylinder barrel and the push rod cannot be changed.
Furthermore, a retracting pulley is installed on the second-stage cylinder barrel flange, one end of a steel wire rope wound on the retracting pulley is fixed on the first-stage cylinder end cover, the other end of the steel wire rope is fixed on the third-stage cylinder barrel flange, and when the screw nut drives the second-stage cylinder barrel and the push rod to do linear motion, the length of the cylinder retracting steel wire rope is unchanged, so that when the screw nut drives the second-stage cylinder barrel to do linear motion, the third-stage cylinder barrel also does linear motion, and the retracting action of the multi-stage cylinder is realized.
A transmission method of a single screw rope transmission range-extending three-level electric cylinder structure comprises the following steps:
the method comprises the following steps: the multistage electric cylinder stretches out, the motor passes through transmission with power to the ball screw pair, the lead screw is rotatory, screw-nut (install on second grade jar flange) drives the push rod, the linear motion is to the second grade cylinder, the cylinder pulley is stretched in the installation of push rod tip, twine and fix on the wire rope mount in one section the steel wire on stretching the cylinder pulley, one end is fixed on tertiary jar flange in addition, the push rod is when doing linear motion, because stretch jar wire rope length unchangeable, and then when screw-nut drives the second grade cylinder and does linear motion, tertiary cylinder also is linear motion under wire rope's effect, the action of stretching out of multistage jar has been realized.
Step two: the multistage electric cylinder retracts, a retracting pulley is arranged on a flange of the second-stage cylinder, one section of a steel wire wound on the retracting pulley is fixed on an end cover of the first-stage cylinder, and the other end of the steel wire is fixed on a flange of the third-stage cylinder. When the screw nut (installed on the flange of the second-stage cylinder) drives the push rod and the second-stage cylinder barrel to do linear motion, the length of the cylinder-retracting steel wire rope is unchanged, so that when the screw nut drives the second-stage cylinder barrel to do linear motion, the third-stage cylinder barrel also does linear motion under the action of the steel wire rope, and the retracting action of the multi-stage cylinder is realized.
The beneficial effects of the invention are: the invention provides a single-lead-bar-rope transmission range-extending three-level electric cylinder structure which is compact in structural form, simple in processing technology, low in installation difficulty, suitable for heavy-load working conditions and capable of providing a larger stroke under the same installation distance and the same overall dimension. Meanwhile, the applicability, stability, safety and convenience of the multi-stage electric cylinder are improved, and the multi-stage electric cylinder has the characteristics of higher reliability, better safety, stronger environmental adaptability and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a single lead screw rope transmission range-extending three-level electric cylinder of the present invention;
FIG. 2 is a schematic view of a single lead screw rope transmission range-extended three-stage electric cylinder structure push rod assembly according to the present invention;
FIG. 3 is a schematic view of a primary cylinder barrel assembly of a single lead screw rope transmission range-extending three-level electric cylinder structure of the present invention;
FIG. 4 is a schematic view of a two-stage cylinder assembly of the present invention;
FIG. 5 is a schematic view of a three stage cylinder assembly of the present invention.
In the figure: 20. a push rod assembly; 21. a push rod; 22. a push rod end cover; 23. a cylinder extending pulley; 24. a cylinder extension steel wire rope; 30. a first-stage cylinder barrel assembly; 31. a first-stage cylinder barrel; 32. a primary cylinder end cover; 33. a cylinder extending steel wire rope fixing frame; 40. a secondary cylinder barrel assembly; 41. a second-stage cylinder barrel; 42. a secondary cylinder end cover; 43. a secondary cylinder flange; 44. a cylinder-retracting pulley; 45. a cylinder retracting steel wire rope; 50. a tertiary cylinder barrel assembly; 51. a third-stage cylinder barrel; 52. a third-stage cylinder end cover; 53. and a third-stage cylinder flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes embodiments of the present invention with reference to the drawings.
According to the figures 1, 2, 3, 4 and 5, the single-screw-rope transmission range-extending three-level electric cylinder structure comprises a push rod assembly (20), a first-level cylinder barrel assembly (30), a second-level cylinder barrel assembly (40), a third-level cylinder barrel assembly (50), a lead screw assembly (60), a gear box assembly (70), a motor (80) and a speed reducer (90).
The push rod assembly (20) comprises a push rod (21), a front end cover (22), a cylinder extending pulley (23) and a cylinder extending steel wire rope (24). The front end cover (22) is connected with the push rod (21) through bolts, a lead screw front end supporting bearing chamber is arranged inside the front end cover (22), the cylinder stretching pulley (23) is connected with the front end cover (22) through bolts, and a cylinder stretching steel wire rope (24) is wound on the cylinder stretching pulley (23).
The first-stage cylinder barrel assembly (30) comprises a first-stage cylinder barrel (31), a first-stage cylinder end cover (32) and a steel wire rope fixing frame (33). One-level cylinder end cover (32) passes through bolted connection with one-level cylinder (31), one-level cylinder (31) afterbody inner wall processing is the step, wire rope mount (33) pass through the bolt fastening on the inner wall step of one-level cylinder (31), stretch jar wire rope (24) one end and fix and add (31) at wire rope fixed, wire rope mount (31) play fixed jar wire rope's of stretching effect promptly, play the effect of supporting lead screw (61) again, shrink jar wire rope (45) one end and fix on one-level cylinder end cover (32).
The second-stage cylinder barrel assembly (40) comprises a second-stage cylinder barrel (41), a second-stage cylinder end cover (42), a second-stage cylinder flange (43), a cylinder contraction pulley (44) and a cylinder contraction steel wire rope (45). The two-stage cylinder barrel (41) is connected with the two-stage cylinder end cover (42) through bolts, the two-stage cylinder flange (43) is connected with the two-stage cylinder barrel (41) and the screw nut through bolts, the cylinder contraction pulley (44) is fixed on the two-stage cylinder flange (43), and the cylinder contraction steel wire rope (45) is wound on the cylinder contraction pulley (44).
The three-stage cylinder barrel assembly (50) comprises a three-stage cylinder barrel (51), a three-stage cylinder end cover (52) and a three-stage cylinder flange (53). The third-stage cylinder end cover (52) and the third-stage cylinder flange (53) are connected with the third-stage cylinder barrel (51) through flanges, the other end of the cylinder extending steel wire rope (24) is fixed on the third-stage cylinder flange (53), and the other end of the cylinder retracting steel wire rope (45) is fixed on the third-stage cylinder flange (53).
The screw pair assembly (60) comprises a screw pair (61), a bearing seat (62) and a main bearing (63). The screw rod (61) is sleeved inside the main bearing (63), and the main bearing (63) is installed inside the bearing seat (62).
The three-stage cylinder barrel (51) is connected with the gear box assembly (70), the motor (80) is connected with the speed reducer (90), and the speed reducer (90) is connected with the gear box assembly (70).
The three-level electric cylinder with the single lead screw rope transmission range-increasing function is compact in structural form, simple in processing technology, low in installation difficulty, suitable for being used under a heavy-load working condition, capable of providing larger stroke under the same installation distance and the same overall dimension, and high in reliability, safety, environmental adaptability and the like.
The particular embodiments described above are illustrative only and are not limiting to the spirit of the invention. Various modifications, additions and substitutions for the described embodiments or similar arrangements may be made by those skilled in the art without departing from the spirit and principles of the present invention, and any such modifications, equivalents, improvements and the like are intended to be included within the scope of the invention.
Claims (5)
1. The utility model provides a three-level electronic jar structure of single screw rope transmission range extension which characterized in that: including push rod assembly, one-level cylinder subassembly, second grade cylinder subassembly, tertiary cylinder subassembly, lead screw assembly, gear box subassembly, motor and reduction gear, lead screw sub-assembly cover is changeed inside push rod assembly, push rod assembly suit is inside tertiary cylinder subassembly, tertiary cylinder subassembly suit is inside the second grade cylinder, the inside suit of second grade cylinder is inside the one-level cylinder, the gear box passes through bolt fixed connection with one-level cylinder subassembly, the driving gear passes through bolt fixed connection with the lead screw, the reduction gear axle passes through bolt fixed connection with driven gear, the reduction gear passes through flange fixed connection with the motor, connect gradually through the rope row between the inside cylinders at different levels of electronic jar.
2. The single-screw-rod-rope transmission range-extending three-level electric cylinder structure as claimed in claim 1, wherein: the screw assembly and the push rod assembly are connected through a screw nut flange, the guide sliding block is installed at the end part of the screw to support the end part of the screw, a key groove is formed in the inner wall of the push rod simultaneously, and the guide sliding block is matched with the key groove.
3. The single-screw rope transmission range-extending three-level electric cylinder structure according to claim 1, characterized in that: the push rod is sleeved inside the three-stage cylinder barrel, a cylinder extending pulley is arranged at the end of the push rod, one end of a steel wire rope is fixed on a flange of the three-stage cylinder barrel and bypasses the cylinder extending pulley, and the other end of the steel wire rope is fixed on a steel wire rope fixing frame at the tail part of the lead screw.
4. The single-screw rope transmission range-extending three-level electric cylinder structure according to claim 1, characterized in that: the second-stage cylinder barrel is sleeved inside the first-stage cylinder barrel, the screw nut is connected with the second-stage cylinder barrel flange through the flange bolt, and the relative position of the second-stage cylinder barrel and the push rod cannot be changed in the movement process.
5. The single-screw rope transmission range-extending three-level electric cylinder structure according to claim 1, characterized in that: and a cylinder retracting pulley is arranged on the second-stage cylinder barrel flange, one end of a steel wire rope wound on the cylinder retracting pulley is fixed on the first-stage cylinder end cover, and the other end of the steel wire rope is fixed on the third-stage cylinder flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210150772.8A CN114552863A (en) | 2022-02-18 | 2022-02-18 | Three-level electric cylinder structure with single lead screw rope transmission range increasing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210150772.8A CN114552863A (en) | 2022-02-18 | 2022-02-18 | Three-level electric cylinder structure with single lead screw rope transmission range increasing function |
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| Publication Number | Publication Date |
|---|---|
| CN114552863A true CN114552863A (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210150772.8A Pending CN114552863A (en) | 2022-02-18 | 2022-02-18 | Three-level electric cylinder structure with single lead screw rope transmission range increasing function |
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| CN (1) | CN114552863A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202766207U (en) * | 2012-06-21 | 2013-03-06 | 常琦 | Telescopic arm for lifting box body |
| CN109450161A (en) * | 2018-12-25 | 2019-03-08 | 西安索睿科技有限公司 | A kind of heavily loaded multi-stage electric cylinder converted between the grade based on Gear Planet Transmission |
| CN109713841A (en) * | 2019-02-20 | 2019-05-03 | 贵州电网有限责任公司 | Ceases to be busy servo-electric push rod in four sections of one kind |
| CN109915567A (en) * | 2019-03-27 | 2019-06-21 | 南京理工大学 | A kind of multistage synchronous lead screw transfer bar mechanism |
| CN113972784A (en) * | 2021-11-08 | 2022-01-25 | 西安方元明鑫精密机电制造有限公司 | Multistage electric cylinder structure with single lead screw pair driving multiple lead screw nuts |
-
2022
- 2022-02-18 CN CN202210150772.8A patent/CN114552863A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202766207U (en) * | 2012-06-21 | 2013-03-06 | 常琦 | Telescopic arm for lifting box body |
| CN109450161A (en) * | 2018-12-25 | 2019-03-08 | 西安索睿科技有限公司 | A kind of heavily loaded multi-stage electric cylinder converted between the grade based on Gear Planet Transmission |
| CN109713841A (en) * | 2019-02-20 | 2019-05-03 | 贵州电网有限责任公司 | Ceases to be busy servo-electric push rod in four sections of one kind |
| CN109915567A (en) * | 2019-03-27 | 2019-06-21 | 南京理工大学 | A kind of multistage synchronous lead screw transfer bar mechanism |
| CN113972784A (en) * | 2021-11-08 | 2022-01-25 | 西安方元明鑫精密机电制造有限公司 | Multistage electric cylinder structure with single lead screw pair driving multiple lead screw nuts |
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Application publication date: 20220527 |