CN113200473B - Multi-degree-of-freedom lifting unit - Google Patents
Multi-degree-of-freedom lifting unit Download PDFInfo
- Publication number
- CN113200473B CN113200473B CN202110482173.1A CN202110482173A CN113200473B CN 113200473 B CN113200473 B CN 113200473B CN 202110482173 A CN202110482173 A CN 202110482173A CN 113200473 B CN113200473 B CN 113200473B
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- China
- Prior art keywords
- gear
- assembly
- sliding block
- chain
- driving
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
-
- 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
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
Abstract
The invention relates to a lifting unit, in particular to a lifting unit with multiple degrees of freedom, which solves the problems that the lifting unit is limited in minimum height and insufficient in structural stability in the prior art. The lifting unit comprises a motor driving assembly, a chain transmission assembly, a sliding assembly, a lifting assembly and a universal joint. The chain transmission assembly comprises a driving gear, a driven gear, a traction chain and a gear mounting seat which are fixedly connected with an output shaft of the motor driving assembly. The sliding assembly comprises at least two supporting seats, a sliding rail supported between the at least two supporting seats, a first sliding block assembly and a second sliding block assembly which slide on the sliding rail. The lifting assembly comprises a first support frame and a second support frame which are of an H-shaped structure. The upper end of the first support frame is hinged with the upper end of the second support frame through a first hinge shaft, the lower end of the first support frame is hinged with the first sliding block assembly, and the lower end of the second support frame is hinged with the second sliding block assembly. The universal joint is hinged with the first hinge shaft.
Description
Technical Field
The invention relates to a lifting unit, in particular to a lifting unit with multiple degrees of freedom.
Background
In many application scenarios, such as VR experience, game facility experience, etc., the motion platform needs to implement three-dimensional space motion to cooperate to achieve the best experience, and the three-dimensional space motion of the motion platform needs to be implemented by a plurality of lifting units.
The existing price increasing units realize transmission in a jack-like manner, and at least have the following defects:
1. the lifting assembly is in diamond transmission, the transmission height is limited, and the lifting requirement of the lowest height cannot be met;
2. the lifting component is a two-end supporting structure, and the structural stability is not enough.
Summary of the invention
The invention aims to solve the problems of limited minimum height and insufficient structural stability of a lifting unit in the prior art, and provides a lifting unit with multiple degrees of freedom.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
a multi-freedom lifting unit is characterized in that: the device comprises a motor driving assembly, a chain transmission assembly, a sliding assembly, a lifting assembly and a universal joint;
the chain transmission assembly comprises a driving gear, a driven gear, a traction chain and a gear mounting seat; the driving gear is fixedly connected with an output shaft of the motor driving assembly; the driven gear is arranged on the gear mounting seat; the traction chain comprises a driving chain meshed with the driving gear and a driven chain meshed with the driven gear;
the sliding assembly comprises at least two supporting seats, a sliding rail supported between the at least two supporting seats, a first sliding block assembly and a second sliding block assembly, wherein the first sliding block assembly and the second sliding block assembly slide on the sliding rail; the sliding track is arranged between the driving gear and the driven gear; the first sliding block component is connected with the upper end of the driving chain and the upper end of the driven chain; the second sliding block component is connected with the lower end of the driving chain and the lower end of the driven chain;
the lifting assembly comprises a first support frame and a second support frame which are of an H-shaped structure, and the upper end part of the first support frame is hinged with the upper end part of the second support frame through a first hinge shaft; the lower end part of the first support frame is hinged with the first sliding block assembly; the lower end part of the second support frame is hinged with the second sliding block assembly; the first sliding block component is arranged at the hollow part of the first supporting frame, and the driven chain passes through the hollow part of the second supporting frame;
the universal joint is located above the first hinge shaft and hinged with the first hinge shaft.
Further, the motor driving assembly comprises a driving motor and a speed reducer, the driving motor provides power for the speed reducer, and an output shaft of the speed reducer is fixedly connected with the driving gear.
Further, the first slider assembly includes a first slider, a first slider mounting bracket, and a first fixed block;
the first sliding block is placed on the first sliding block mounting bracket; the first slider mounting bracket is fixedly connected to the first fixed block;
the sliding track passes through the first sliding block and the first sliding block mounting bracket;
the first sliding block is hinged with the lower end part of the first supporting frame through a second hinge shaft;
the first fixed block is connected with the upper end of the driving chain and the upper end of the driven chain.
Further, the universal joint comprises a first U-shaped lug plate, a second U-shaped lug plate and a third U-shaped lug plate;
both sides of the first U-shaped ear plate are hinged with a first hinge shaft;
two sides of the second U-shaped lug plate and two sides of the third U-shaped lug plate are hinged through a fourth hinge shaft;
the bottom of the second U-shaped lug plate is hinged with the bottom of the first U-shaped lug plate; the bottom of the third U-shaped lug plate is fixedly connected with the platform to be moved.
Further, the driven gear is fixed in the gear mounting seat through a gear shaft, slide ways are arranged on two sides of the gear mounting seat, and the gear shaft slides in the slide ways;
the gear shaft is fixed on the gear mounting seat through two slipknot screws, and the slipknot screws are vertically arranged with the gear shaft.
Further, one end of the slipknot screw is in a round hole shape, the size of the slipknot screw is matched with that of the gear shaft, threads are arranged at the other end of the slipknot screw, and the slipknot screw is arranged on the gear mounting seat through a nut.
Further, the number of the supporting seats is three, the distances between two adjacent supporting seats are equal, and the supporting seat in the middle is arranged between the first sliding block assembly and the second sliding block assembly.
Further, the sliding rail is an elongated cylindrical shape.
The beneficial effects of the invention are as follows:
1. stable structure and meets the requirement of the minimum height. Two support frames, at least two supporting seats and a sliding rail in the lifting unit form a stable triangle structure, so that the stability of the whole lifting unit is enhanced. In addition, compared with the diamond structure in the prior art, the triangular structure reduces the transmission height by nearly half, and meets the requirement of the minimum height.
2. Long service life. The lifting unit adopts a chain transmission assembly, drives the driving gear through the first motor driving assembly, and then drives the driven gear to rotate with the traction chain, so that the two supporting seats move up and down under the drive of the two sliding assemblies, the chain is long in service life and not easy to damage, and the maintenance cost is low. In addition, this lift unit still sets up two at least supporting seats and slip track, and first slider subassembly and second slider subassembly slide on the slip track, have shared the atress of support frame, have prolonged its life-span.
3. The installation is quick and convenient. The lifting unit is further provided with a universal joint and at least two supporting seats, so that the lifting unit is convenient to install quickly and use.
4. The transmission noise is small. The driving gear and the driven gear of the lifting unit are connected through the traction chain, so that the transmission noise is low, and the user experience requirements are met.
Drawings
FIG. 1 is a schematic view of a multi-degree of freedom lifting unit in an embodiment of the invention;
FIG. 2 is a schematic view of a multiple degree of freedom lift unit with motor drive assembly removed in accordance with an embodiment of the present invention
FIG. 3 is a front view of FIG. 2;
FIG. 4 is an exploded view of FIG. 2;
the reference numerals are as follows:
the device comprises a 1-motor driving component, a 11-driving motor, a 12-speed reducer, a 2-chain transmission component, a 21-driving gear, a 22-driven gear, a 23-traction chain, a 231-driving chain, a 232-driven chain, a 24-gear mounting seat, a 241-gear shaft, a 242-slideway, a 243-slipknot screw, a 3-sliding component, a 31-supporting seat, a 32-sliding track, a 33-first sliding component, a 331-first sliding block, a 332-first sliding block mounting bracket, a 333-first fixed block, a 334-second hinged shaft, a 34-second sliding block component, a 341-second sliding block, a 342-second sliding block mounting bracket, a 343-second fixed block, a 344-third hinged shaft, a 4-lifting component, a 41-first supporting frame, a 42-second supporting frame, a 43-first hinged shaft, a 44-hollow part, a 5-universal joint, a 51-first U-shaped lug plate, a 52-second U-shaped lug plate, a 53-third U-shaped lug plate and a 54-fourth hinged shaft.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1, a multi-degree-of-freedom lifting unit includes a motor driving assembly 1, a chain transmission assembly 2, a sliding assembly 3, a lifting assembly 4, and a universal joint 5.
As shown in fig. 2 and 3, the chain transmission assembly 2 includes a driving gear 21, a driven gear 22, a traction chain 23, and a gear mount 24. The driving gear 21 is fixedly connected with the output shaft of the motor driving assembly 1, the driven gear 22 is arranged on the gear mounting seat 24, and the traction chain 23 comprises a driving chain 231 meshed with the driving gear 21 and a driven chain 232 meshed with the driven gear 22.
The motor driving assembly 1 comprises a driving motor 11 and a speed reducer 12, wherein the driving motor 11 provides power for the speed reducer 12, and an output shaft of the speed reducer 12 is fixedly connected with the driving gear 21 to drive the driving gear 21 to rotate, so as to drive the driving chain 231, the driven chain 232 and the driven gear 22 to rotate.
Further detailing the gear mount 24, as shown in fig. 4, the driven gear 22 is fixed in the gear mount 24 by a gear shaft 241, and the two sides of the gear mount 24 are provided with slide ways 242, and the gear shaft 241 slides in the slide ways 242. The gear shaft 241 is fixed to the gear mount 24 by two slipknot screws 243, and the slipknot screws 243 are mounted perpendicular to the gear shaft 241.
One end of the slipknot screw 243 is in a round hole shape, the size of the slipknot screw is matched with that of the gear shaft 241, the other end of the slipknot screw is provided with threads, and the slipknot screw is installed on the gear installation seat 24 through a nut. The position of the driven gear 22 can be adjusted by the gear shaft 241 and the slipknot screw 243.
The sliding assembly 3 includes three support seats 31, a sliding rail 32 supported between the three support seats 31, a first slider assembly 33 and a second slider assembly 34 sliding on the sliding rail 32. The distance between two adjacent support seats 31 is equal, and the support seat 31 positioned in the middle is arranged between the first sliding block component 33 and the second sliding block component 34. The slide rail 32 is an elongated cylindrical shape, and is disposed between the driving gear 21 and the driven gear 22. The first slider assembly 33 is connected to the upper end of the driving chain 231 and the upper end of the driven chain 232. The second slider assembly 34 is connected to the lower end of the driving chain 231 and the lower end of the driven chain 232.
As shown in fig. 2 and 3, the lifting assembly 4 includes a first support frame 41 and a second support frame 42 having an "H" shaped structure. The upper end of the first support frame 41 is hinged to the upper end of the second support frame 42 through a first hinge shaft 43, the lower end of the first support frame 41 is hinged to the first slider assembly 33, and the lower end of the second support frame 42 is hinged to the second slider assembly 34. The first slider assembly 33 is disposed in the hollow portion 44 of the first support frame 41, and the driven chain 232 passes through the hollow portion 44 of the second support frame 42. The second slider assembly 34 is disposed in the hollow portion 44 of the second support frame 42, and the driving chain 231 passes through the hollow portion 44 of the first support frame 41.
The supporting seat 31 can limit the movement track of the first sliding block assembly 33 and the second sliding block assembly 34, and further limit the movement track of the lower end parts of the first supporting frame 41 and the second supporting frame 42, so that a certain limiting effect can be achieved on the lifting height of the lifting unit. In addition, the middle supporting seat 31 can prevent the first sliding block component 33 from colliding with the second sliding block component 34, so that the protection function is realized.
The first slider assembly 33 and the second slider assembly 34 are further refined.
As shown in fig. 4, the first slider assembly 33 includes a first slider 331, a first slider mounting bracket 332, and a first fixed block 333. The first slider 331 is placed on the first slider mounting bracket 332, and the first slider mounting bracket 332 is fixedly attached to the first fixed block 333. The first slider 331 and the first slider mounting bracket 332 are provided with round holes matched with the sliding rails 32, and the sliding rails 32 penetrate through the first slider 331 and the first slider mounting bracket 332. The first slider 331 is hinged to the lower end portion of the first support frame 41 by a second hinge shaft 334. The first fixed block 333 is connected to the upper end of the driving chain 231 and the upper end of the driven chain 232.
As shown in fig. 4, the second slider assembly 34 includes a second slider 341, a second slider mounting bracket 342, and a second fixing block 343. The second slider 341 is placed on the second slider mounting bracket 342, and the second slider mounting bracket 342 is fixedly attached to the second fixing block 343. The slide rail 32 passes through the second slider 342 and the second slider mounting bracket 342. The second slider 341 is hinged to the lower end portion of the second supporting frame 42 by a third hinge shaft 344. The second fixing block 343 is connected to the lower end of the driving chain 231 and the lower end of the driven chain 232.
The universal joint 5 is located above the first hinge shaft 43 and is hinged to the first hinge shaft 43.
The universal joint 5 is further refined. The universal joint 5 includes a first U-shaped ear plate 51, a second U-shaped ear plate 52, and a third U-shaped ear plate 53. Both sides of the first U-shaped ear plate 51 are hinged to the first hinge shaft 43. Both sides of the second U-shaped ear plate 52 and both sides of the third U-shaped ear plate 53 are hinged by a fourth hinge shaft 54. The bottom of the second U-shaped lug plate 52 is hinged with the bottom of the first U-shaped lug plate 51, and the bottom of the third U-shaped lug plate 53 is fixedly connected with the platform to be moved. The first U-shaped ear plate 51 and the third U-shaped ear plate 53 in the universal joint 5 can rotate left and right, and the second U-shaped ear plate 52 can rotate.
The lifting unit has popularization and can be applied to various lifting mechanisms requiring three-dimensional space movement, and the lifting unit has stable structure and long service life. The specific movement process is as follows:
the first motor driving assembly 1 is connected with a power supply, the first driving motor 11 provides power for the first speed reducer 12, and the first speed reducer 12 drives the first driving gear 21 to rotate, so as to drive the driving chain 231, the driven chain 232 and the driven gear 22 to rotate. When the driving chain 231 and the driven chain 232 rotate counterclockwise, the first slider assembly 33 and the second slider assembly 34 slide in opposite directions along the sliding track 32, so that the lower ends of the first support frame 41 and the second support frame 42 approach each other, and the highest point of the lifting unit is gradually raised. When the driving chain 231 and the driven chain 232 rotate clockwise, the first slider assembly 33 and the second slider assembly 34 slide back on the sliding track 32, so that the lower ends of the first support frame 41 and the second support frame 42 are far away from each other, and the highest point of the lifting unit is slowly lowered.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (5)
1. A multi-freedom lifting unit is characterized in that: comprises a motor driving component (1), a chain transmission component (2), a sliding component (3), a lifting component (4) and a universal joint (5);
the chain transmission assembly (2) comprises a driving gear (21), a driven gear (22), a traction chain (23) and a gear mounting seat (24); the driving gear (21) is fixedly connected with an output shaft of the motor driving assembly (1); the driven gear (22) is arranged on the gear mounting seat (24); the traction chain (23) comprises a driving chain (231) meshed with the driving gear (21) and a driven chain (232) meshed with the driven gear (22);
the sliding assembly (3) comprises at least two supporting seats (31), a sliding rail (32) supported between the at least two supporting seats (31), a first sliding block assembly (33) and a second sliding block assembly (34) which slide on the sliding rail (32); the sliding track (32) is arranged between the driving gear (21) and the driven gear (22), and the sliding track (32) is of an elongated cylinder shape; the first sliding block component (33) is connected with the upper end of the driving chain (231) and the upper end of the driven chain (232); the second sliding block assembly (34) is connected with the lower end of the driving chain (231) and the lower end of the driven chain (232);
the lifting assembly (4) comprises a first support frame (41) and a second support frame (42) which are of an H-shaped structure, and the upper end part of the first support frame (41) is hinged with the upper end part of the second support frame (42) through a first hinge shaft (43); the lower end part of the first supporting frame (41) is hinged with the first sliding block component (33); the lower end part of the second supporting frame (42) is hinged with the second sliding block assembly (34); the first sliding block assembly (33) is arranged at the hollow part (44) of the first supporting frame (41), and the driven chain (232) passes through the hollow part (44) of the second supporting frame (42);
the first slider assembly (33) comprises a first slider (331), a first slider mounting bracket (332) and a first fixed block (333); the first slider (331) is placed on a first slider mounting bracket (332); the first slider mounting bracket (332) is fixedly connected to the first fixed block (333); the sliding track (32) passes through the first sliding block (331) and the first sliding block mounting bracket (332); the first sliding block (331) is hinged with the lower end part of the first supporting frame (41) through a second hinge shaft (334); the first fixed block (333) is connected with the upper end of the driving chain (231) and the upper end of the driven chain (232);
the universal joint (5) is positioned above the first hinging shaft (43) and hinged with the first hinging shaft (43);
the universal joint (5) comprises a first U-shaped lug plate (51), a second U-shaped lug plate (52) and a third U-shaped lug plate (53); both sides of the first U-shaped lug plate (51) are hinged with a first hinge shaft (43); both sides of the second U-shaped lug plate (52) and both sides of the third U-shaped lug plate (53) are hinged through a fourth hinge shaft (54); the bottom of the second U-shaped lug plate (52) is hinged with the bottom of the first U-shaped lug plate (51); the bottom of the third U-shaped lug plate (53) is fixedly connected with the platform to be moved.
2. A multiple degree of freedom lifting unit according to claim 1 wherein: the motor driving assembly (1) comprises a driving motor (11) and a speed reducer (12), wherein the driving motor (11) provides power for the speed reducer (12), and an output shaft of the speed reducer (12) is fixedly connected with a driving gear (21).
3. A multiple degree of freedom lifting unit according to claim 2, wherein: the driven gear (22) is fixed in the gear mounting seat (24) through a gear shaft (241), slide ways (242) are arranged on two sides of the gear mounting seat (24), and the gear shaft (241) slides in the slide ways (242);
the gear shaft (241) is fixed on the gear mounting seat (24) through two slipknot screws (243), and the slipknot screws (243) are vertically arranged with the gear shaft (241).
4. A multiple degree of freedom lifting unit according to claim 3 wherein: one end of the slipknot screw (243) is in a round hole shape, the size of the slipknot screw is matched with that of the gear shaft (241), threads are arranged at the other end of the slipknot screw, and the slipknot screw is arranged on the gear mounting seat (24) through a nut.
5. The multiple degree of freedom lifting unit of claim 4 wherein: the number of the supporting seats (31) is three, the distances between two adjacent supporting seats (31) are equal, and the supporting seat (31) positioned in the middle is arranged between the first sliding block assembly (33) and the second sliding block assembly (34).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110482173.1A CN113200473B (en) | 2021-04-30 | 2021-04-30 | Multi-degree-of-freedom lifting unit |
| PCT/CN2022/090397 WO2022228561A1 (en) | 2021-04-30 | 2022-04-29 | Multi-degree-of-freedom lifting unit, and rotatable multi-degree-of-freedom motion platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110482173.1A CN113200473B (en) | 2021-04-30 | 2021-04-30 | Multi-degree-of-freedom lifting unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113200473A CN113200473A (en) | 2021-08-03 |
| CN113200473B true CN113200473B (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110482173.1A Active CN113200473B (en) | 2021-04-30 | 2021-04-30 | Multi-degree-of-freedom lifting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113200473B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228561A1 (en) * | 2021-04-30 | 2022-11-03 | 西安虚拟骑乘科技有限公司 | Multi-degree-of-freedom lifting unit, and rotatable multi-degree-of-freedom motion platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1505255A (en) * | 1965-12-29 | 1967-12-08 | Clark Equipment Co | Control device for forklift accessories |
| CN103434974A (en) * | 2013-09-16 | 2013-12-11 | 济南龙豪液压机械有限公司 | Multifunctional lift |
| CN203684193U (en) * | 2014-01-13 | 2014-07-02 | 中国石油大学(华东) | Lifting mechanism for self-elevating drilling platform |
| CN105858562A (en) * | 2016-06-06 | 2016-08-17 | 刘高宏 | Adjusting device of garden care workbench |
| CN106276704A (en) * | 2016-10-24 | 2017-01-04 | 中国兵器装备集团自动化研究所 | A kind of vehicle-mounted Two axle drive lifting device |
-
2021
- 2021-04-30 CN CN202110482173.1A patent/CN113200473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1505255A (en) * | 1965-12-29 | 1967-12-08 | Clark Equipment Co | Control device for forklift accessories |
| CN103434974A (en) * | 2013-09-16 | 2013-12-11 | 济南龙豪液压机械有限公司 | Multifunctional lift |
| CN203684193U (en) * | 2014-01-13 | 2014-07-02 | 中国石油大学(华东) | Lifting mechanism for self-elevating drilling platform |
| CN105858562A (en) * | 2016-06-06 | 2016-08-17 | 刘高宏 | Adjusting device of garden care workbench |
| CN106276704A (en) * | 2016-10-24 | 2017-01-04 | 中国兵器装备集团自动化研究所 | A kind of vehicle-mounted Two axle drive lifting device |
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| Publication number | Publication date |
|---|---|
| CN113200473A (en) | 2021-08-03 |
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