CN215350238U - Swing arm lifting structure - Google Patents
Swing arm lifting structure Download PDFInfo
- Publication number
- CN215350238U CN215350238U CN202120907493.2U CN202120907493U CN215350238U CN 215350238 U CN215350238 U CN 215350238U CN 202120907493 U CN202120907493 U CN 202120907493U CN 215350238 U CN215350238 U CN 215350238U
- Authority
- CN
- China
- Prior art keywords
- rod
- rotating shaft
- swing arm
- rod piece
- connecting block
- 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.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of automatic lifting devices, and discloses a swing arm lifting structure which comprises a driving device, a connecting rod structure and a horizontal connector; the connecting rod structure is connected with the horizontal connector, and the driving device drives the connecting rod structure to drive the horizontal connector to ascend or descend; the connecting rod structure comprises a first rod piece structure, the first rod piece structure comprises a first rod piece and a second rod piece, and the first rod piece is respectively connected with the driving device and the second rod piece; the first rod piece is an eccentric wheel, and the hole pitch on the eccentric wheel is the effective length of the crank; the first rod piece and the second rod piece form a rotary pair, and the rotary radius of the rotary pair is greater than the effective length of the crank; the equipment needing to be lifted or lowered is arranged on the horizontal connector, and the driving device drives the connecting rod structure to drive the horizontal connector to move up and down, so that the equipment needing to be lifted or lowered is lifted or lowered; the first rod piece serves as a driving piece, an eccentric wheel structure is used, a rotary motion pair is increased, transmission efficiency is improved, and torque output is effectively improved.
Description
Technical Field
The utility model relates to the technical field of automatic lifting devices, in particular to a swing arm lifting structure.
Background
Swing arm elevation structures are indispensable in many automated fields, for example, swing arm tower cranes, which are mainly used in operating rooms for providing various air ports (such as oxygen, air, negative pressure, laughing gas, waste gas recovery, etc.) for patients and medical staff, and for hanging medical instruments such as anesthesia machines or endoscopic trolleys.
In the prior art, the transmission mode of the swing arm lifting system mainly adopts screw rod lifting, synchronous belt transmission, chain transmission and the like, the screw rod lifting has the problems of inconvenient installation, difficult adjustment of synchronism of two sides and the like, the cost is higher, and the synchronous belt and the chain transmission have the problems of insufficient transmission precision, unstable operation and high noise.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a swing arm lifting structure, and aims to solve the problems of low transmission efficiency and high noise of a synchronous belt and chain transmission type swing arm lifting structure in the prior art.
The utility model is realized in this way, a swing arm lifting structure, including drive unit, tie rod structure and horizontal connector; the connecting rod structure is connected with the horizontal connector, and the driving device drives the connecting rod structure to drive the horizontal connector to ascend or descend; the connecting rod structure comprises a first rod piece structure, the first rod piece structure comprises a first rod piece and a second rod piece, and the first rod piece is respectively connected with the driving device and the second rod piece; the first rod piece is an eccentric wheel, and the hole pitch on the eccentric wheel is the effective length of the crank; the first rod piece and the second rod piece form a rotary pair, and the rotary radius of the rotary pair is larger than the effective length of the crank.
Furthermore, the swing arm lifting structure comprises a swing arm, a first connecting block and a second connecting block, and the connecting rod structure comprises a second rod structure and a third rod structure; the two ends of the swing arm are respectively butted with the first connecting block and the second connecting block, the first rod piece structure is connected with the first connecting block, the second rod piece structure is connected with the second connecting block, the second rod piece structure is connected with the third rod piece structure, and the third rod piece structure is connected with the horizontal connector.
Further, the first rod structure comprises a third rod, a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, the first rod passes through the first rotating shaft and is connected with the driving device, the first rod passes through the second rotating shaft and is connected with the second rod, the second rod passes through the third rotating shaft and is connected with the third rod, and the third rod passes through the fourth rotating shaft and is connected with the first connecting block.
Further, the second rod structure comprises a rod four, a rod five, a rotating shaft five and a rotating shaft six, the rod three passes through the rotating shaft four and the connecting block one are connected, the rod four passes through the rotating shaft six and the rod five is connected, and the rod five passes through the rotating shaft six and the connecting block two is connected.
Furthermore, the swing arm is sleeved with the rod member four, and the rod member four extends along the length direction of the swing arm.
Furthermore, the second rod piece comprises a rotating shaft nine, and two ends of the rotating shaft four are respectively connected with the rotating shaft nine and the rotating shaft six; the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft and the ninth rotating shaft form a parallelogram.
Furthermore, the rod member five comprises a first end, a second end and a third end, and the first end, the second end and the third end are sequentially connected to form a triangular shape; the first end is connected with the fifth rotating shaft, the second end is connected with the sixth rotating shaft, and the third end is connected with the third rod structure.
Furthermore, the third rod structure comprises a rod six, a rotating shaft seven and a rotating shaft eight; the rod member six is connected with the end head three through the rotating shaft seven, and the rod member six is connected with the horizontal connector through the rotating shaft eight.
Furthermore, the third rod piece comprises a rotating shaft ten, and the rotating shaft five, the rotating shaft seven, the rotating shaft eight and the rotating shaft ten form a parallelogram.
Further, the horizontal connectors are horizontally arranged.
Compared with the prior art, the swing arm lifting structure provided by the utility model has the advantages that when the swing arm lifting structure is used, equipment needing to be lifted or lowered is arranged on the horizontal connector, and the horizontal connector is driven to move up and down by the driving device driving the connecting rod structure, so that the equipment needing to be lifted or lowered is lifted or lowered; the first rod piece serves as a driving piece, an eccentric wheel structure is used, a rotary motion pair is increased, transmission efficiency is increased, and torque output is effectively improved; and through the transmission of the connecting rod structure, the defects of large friction loss and large transmission noise in the transmission process are overcome, the installation is convenient, the transmission is stable, and the equipment needing to be lifted or lowered can stably and safely operate.
Drawings
FIG. 1 is a schematic perspective view of a swing arm lift system (with a swing arm) provided by an embodiment of the present invention;
fig. 2 is a schematic perspective view of a swing arm lifting system (without a swing arm) provided in an embodiment of the present invention.
FIG. 3 is a schematic front view of an eccentric according to an embodiment of the present invention;
fig. 4 is a schematic front view of a second rod according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
Referring to fig. 1-4, preferred embodiments of the present invention are provided.
A swing arm lifting structure comprises a mounting base 100, a driving device 110, a swing arm 120, a horizontal connector 308 and a connecting rod structure, wherein the connecting rod structure comprises a first rod structure, a second rod structure and a third rod structure, and the horizontal connector 308 is horizontally arranged; the driving device 110 is arranged on the mounting base 100, the first rod structure is connected with the driving device 110, the first rod structure is connected with the head end of the swing arm 120, the second rod structure is connected with the tail end of the swing arm 120, the second rod structure is connected with the third rod structure, the third rod structure is connected with the horizontal connector 308, the driving device 110 drives the first rod structure to operate, the first rod structure drives the swing arm 120 to swing up and down, the tail end of the swing arm 120 swings up and down, so as to drive the second rod structure to operate, the second rod structure drives the third rod structure to operate, so that the third rod structure drives the horizontal connector 308 to ascend or descend, and in the ascending or descending process, the horizontal connector 308 is always kept in a horizontal state.
When the swing arm 120 lifting system is used, the mounting base 100 is horizontally arranged, during mounting, the mounting base 100 is horizontally mounted on other suspension devices, the swing arm 120 lifting system is mounted on other suspension devices, such as a tower crane suspension base, through the combined transmission of three groups of link mechanisms, the tail end of the swing arm 120 is lifted and lowered, through the size proportion adjustment of all the rods, the tail end connector of the swing arm 120 is always kept in a horizontal state in the lifting and lowering processes, and the requirements of a medical tower crane lifting box and a camera platform are completely met.
The first rod structure includes a first rod 201, a second rod 203, a third rod 205, a first rotating shaft 200, a second rotating shaft 202, a third rotating shaft 204, and a fourth rotating shaft 206, wherein the first rod 201 is connected to the driving device 110 through the first rotating shaft 200, the first rod 201 is connected to the second rod 203 through the second rotating shaft 202, and the second rod 203 is connected to the third rod 205 through the third rotating shaft 204.
The first rod 201 is a crank, the first rod 201 is driven by the driving device 110 to rotate and can rotate for 360 degrees, the first rod 201 is an eccentric wheel as a crank, and the pitch of the eccentric wheel is the effective length of the crank, as shown in fig. 3.
Further, the shape of the second rod 203 is as shown in fig. 4, the connection between the second rod 203 and the first rod 201 uses a larger bearing as a revolute pair, and the revolute radius of the revolute pair is greater than the effective length of the crank, so that the output of torque can be effectively improved, and the transmission efficiency is increased.
When the swing arm lifting structure is used, equipment needing to be lifted or lowered is mounted to the horizontal connecting head 308, and the driving device 110 drives the connecting rod structure to drive the horizontal connecting head 308 to move up and down, so that the lifting or lowering of the equipment needing to be lifted or lowered is realized; the first rod piece 201 serves as a driving piece, an eccentric wheel structure is used, a rotary motion pair is increased, transmission efficiency is increased, and torque output is effectively improved; and through the transmission of the connecting rod structure, the defects of large friction loss and large transmission noise in the transmission process are overcome, the installation is convenient, the transmission is stable, and the equipment needing to be lifted or lowered can stably and safely operate.
The output shaft of the driving device 110 is connected with a first rod member 201, the first rod member 201 is driven to do uniform circular motion around a first rotating shaft 200, and a third rod member 205 does reciprocating variable speed motion, so that the tower crane can slowly descend when in use and quickly ascend when being retracted.
The driving device 110 may be an electric motor, a hydraulic driving device or a pneumatic driving device.
The swing arm 120 lifting system comprises a first connecting block 130, a second connecting block 140 and a swing arm 120; the third rod 205 is movably connected with the mounting base 100, the third rod 205 is positioned through the mounting base 100, but the third rod 205 can rotate to and fro relative to the mounting base 100 under the driving of the second rod 203; the third rod 205 is connected with the first connecting block 130 through the fourth rotating shaft 206, the third rod 205 drives the first connecting block 130 to rotate in a reciprocating mode, and the first connecting block 130 drives the swing arm 120 to rotate around the fourth rotating shaft 206, so that the other end of the swing arm 120 can ascend and descend.
The second rod structure comprises a fourth rod 301, a fifth rod 304, a fifth rotating shaft 303, a sixth rotating shaft 302 and a ninth rotating shaft 300, the fourth rod 301 is connected with the fifth rod 304 through the sixth rotating shaft 302, the fifth rod 304 is connected with the second connecting block 140 through the fifth rotating shaft 303, two ends of the swing arm 120 are respectively in butt joint with the first connecting block 130 and the second connecting block 140, when the driving device 110 drives the first rod 201 to rotate, the third rod 205 drives the first connecting block 130 to rotate around the fourth rotating shaft 206, and the first connecting block 130 drives the swing arm 120 to rotate, so that the other end of the swing arm 120 ascends or descends, and the second connecting block 140 is driven to swing up and down.
The third bar structure comprises a bar six 306; the rod six 306 is connected with the rod five 304 through a rotating shaft seven 305, and the rod six 306 is connected with the horizontal connector 308 through a rotating shaft eight 307; the rod member six 306 includes a first end, a second end and a third end, and the first end, the second end and the third end are connected in sequence to form a triangle, that is, the fifth rotating shaft 303, the sixth rotating shaft 302 and the seventh rotating shaft 305 are connected in sequence to form a triangle.
Specifically, when the driving device 110 drives the first rod 201 to rotate at a constant speed, the third rod 205 reciprocates, the third rod 205 drives the first connecting block 130 to swing up and down, when the first connecting block 130 swings up, the other end of the swing arm 120 rises, the second connecting block 140 swings up, the second connecting block 140 drives the fifth rod 304 to rotate clockwise, at this time, one end where the seventh rotating shaft 305 is located moves down, and one end where the sixth rotating shaft 302 is located moves up, so that the horizontal connection head 308 moves up horizontally; when the first connecting block 130 swings downwards, the other end of the swing arm 120 descends, the second connecting block 140 swings downwards, the second connecting block 140 drives the fifth rod member 304 to rotate anticlockwise, at the moment, one end of the seventh rotating shaft 305 moves upwards, and one end of the sixth rotating shaft 302 moves downwards, so that the horizontal connecting head 308 moves downwards, the horizontal connecting head 308 is connected with a device needing to move upwards and downwards, the device can horizontally move upwards and downwards, and the moving process is stable and smooth.
The swing arm 120 is sleeved with a rod member four 301, and two ends of the rod member 301 extend to two ends of the swing arm 120 respectively; when the swing arm 120 rotates around the fourth rotating shaft 206, the fourth rod 301 swings along with the swing arm 120; one end of the horizontal connector 308 is connected with the rod member six 306 through the rotating shaft eight 307, the other end of the horizontal connector 308 is connected with the limiting block 150 through the rotating shaft ten 309, one end of the rod member four 301 is connected with the rotating shaft nine 300, and the other end of the rod member four 301 is connected with the rotating shaft six 302.
The four rotating shafts 206, the five rotating shafts 303, the six rotating shafts 302 and the nine rotating shafts 300 form a parallelogram, in the swinging process of the three rod members 205, the four rod members 301 and the five rod members 303, the four rotating shafts 206, the five rotating shafts 303, the six rotating shafts 302 and the nine rotating shafts 300 form the parallelogram all the time, the parallelogram is restricted all the time in the swinging process, the smooth ascending and descending are ensured, the relative positions of the four rod members 301 and the swinging arms 120 are ensured to be unchanged in the moving process, wires or pipelines in the swinging arms 120 cannot be extruded or pulled, meanwhile, the rod members move smoothly in the whole swinging process is ensured, and the tail ends of the swinging arms 120 are kept in a horizontal state all the time in the ascending or descending process; the fourth rotation shaft 206, the eighth rotation shaft 307, the ninth rotation shaft 300, and the fifth rotation shaft 303 may also be disposed in an inverse parallelogram, which is taken as an example in this embodiment.
The five rotating shafts 303, the seven rotating shafts 305, the eight rotating shafts 307 and the ten rotating shafts 309 form a parallelogram, and are restricted in the swinging process of the five rod members 304 and the six rod members 306 to ensure that the horizontal connecting heads 308 ascend and descend smoothly and are kept horizontal all the time in the ascending and descending process, and meanwhile, the five rotating shafts 303, the seven rotating shafts 305, the eight rotating shafts 307 and the ten rotating shafts 309 can also be arranged to form an inverse parallelogram, which is taken as an example in the embodiment.
Wherein, the limiting block 150 extends towards one end of the swing arm 120 and is located right below the swing arm 120, the swing arm 120 is limited to a certain extent, so as to limit the swing of the swing arm 120, that is, the swing arm 120 is arranged horizontally, taking a horizontal line as an example, the first connecting block 130 is driven to swing upwards through the third rod 205, at the moment, the other end of the swing arm 120 rises, because the first connecting block 130 and the second connecting block 140 are embedded in the swing arm 120, the height of the upper swing of the first connecting block 130 is determined by the height of the upper swing of the second connecting block, when the first connecting block 130 swings downwards, the other end of the swing arm 120 descends, when the swing arm 120 descends to be horizontal, the limiting block 150 is arranged in parallel with the swing arm 120, when the other end of the swing arm 120 continuously descends, the rod member five 304 rotates counterclockwise, and the rotating shaft seven 305 drives the rod member six 306 to move upward, the stopper 150 moves upward to thereby serve as a stopper for the other end of the descending swing arm 120.
In this embodiment, the two sides of the mounting base 100 are respectively provided with the first rod structure, the second rod structure, and the third rod structure, the two ends of the driving device 110 are respectively connected to the two first rod structures and simultaneously drive the two first rod structures to move, and the moving states of the first rod structure, the second rod structure, and the third rod structure at the two sides are kept consistent, so that the lifting process of the whole swing arm lifting system is more stable, the structure is firm, the transmission is stable, the bearing capacity is increased, and the tower crane can operate stably and safely.
The swing arm lifting system overcomes the defects of large friction loss and large transmission noise of the lead screw in the transmission process, and the connecting rod has a compact structure and can save the end space.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A swing arm lifting structure is characterized by comprising a driving device, a connecting rod structure and a horizontal connector; the connecting rod structure is connected with the horizontal connector, and the driving device drives the connecting rod structure to drive the horizontal connector to ascend or descend; the connecting rod structure comprises a first rod piece structure, the first rod piece structure comprises a first rod piece and a second rod piece, and the first rod piece is respectively connected with the driving device and the second rod piece; the first rod piece is an eccentric wheel, and the hole pitch on the eccentric wheel is the effective length of the crank; the first rod piece and the second rod piece form a rotary pair, and the rotary radius of the rotary pair is larger than the effective length of the crank.
2. The swing arm lifting structure according to claim 1, wherein the swing arm lifting structure comprises a swing arm, a first connecting block and a second connecting block, and the connecting rod structure comprises a second rod structure and a third rod structure; the two ends of the swing arm are respectively butted with the first connecting block and the second connecting block, the first rod piece structure is connected with the first connecting block, the second rod piece structure is connected with the second connecting block, the second rod piece structure is connected with the third rod piece structure, and the third rod piece structure is connected with the horizontal connector.
3. The swing arm lifting structure according to claim 2, wherein the first rod structure comprises a third rod, a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, the first rod is connected with the driving device through the first rotating shaft, the first rod is connected with the second rod through the second rotating shaft, the second rod is connected with the third rod through the third rotating shaft, and the third rod is connected with the first connecting block through the fourth rotating shaft.
4. The swing arm lifting structure according to claim 2, wherein the second rod structure comprises a rod four, a rod five, a rotating shaft five and a rotating shaft six, the rod three is connected with the connecting block one through the rotating shaft four, the rod four is connected with the rod five through the rotating shaft six, and the rod five is connected with the connecting block two through the rotating shaft six.
5. The swing arm lifting structure according to claim 4, wherein the swing arm is sleeved with the rod member four, and the rod member four extends along the length direction of the swing arm.
6. The swing arm lifting structure according to claim 4, wherein the second rod comprises a rotating shaft nine, and two ends of the rotating shaft four are respectively connected with the rotating shaft nine and the rotating shaft six; the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft and the ninth rotating shaft form a parallelogram.
7. The swing arm lifting structure according to claim 4, wherein the rod member V comprises a first end, a second end and a third end, and the first end, the second end and the third end are sequentially connected to form a triangular shape; the first end is connected with the fifth rotating shaft, the second end is connected with the sixth rotating shaft, and the third end is connected with the third rod structure.
8. The swing arm lifting structure according to claim 7, wherein the third rod structure comprises a rod six, a rotating shaft seven, and a rotating shaft eight; the rod member six is connected with the end head three through the rotating shaft seven, and the rod member six is connected with the horizontal connector through the rotating shaft eight.
9. The swing arm lifting structure according to claim 8, wherein the third rod comprises a rotating shaft ten, and the rotating shaft five, the rotating shaft seven, the rotating shaft eight and the rotating shaft ten form a parallelogram.
10. The swing arm lifting structure according to claim 1, wherein the horizontal connecting head is horizontally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120907493.2U CN215350238U (en) | 2021-04-28 | 2021-04-28 | Swing arm lifting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120907493.2U CN215350238U (en) | 2021-04-28 | 2021-04-28 | Swing arm lifting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215350238U true CN215350238U (en) | 2021-12-31 |
Family
ID=79628622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120907493.2U Active CN215350238U (en) | 2021-04-28 | 2021-04-28 | Swing arm lifting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215350238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114869643A (en) * | 2022-05-18 | 2022-08-09 | 迈柯唯医疗设备(苏州)有限公司 | Medical tower crane height adjusting device |
-
2021
- 2021-04-28 CN CN202120907493.2U patent/CN215350238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114869643A (en) * | 2022-05-18 | 2022-08-09 | 迈柯唯医疗设备(苏州)有限公司 | Medical tower crane height adjusting device |
| CN114869643B (en) * | 2022-05-18 | 2024-03-01 | 迈柯唯医疗设备(苏州)有限公司 | Medical crane tower height adjusting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203697006U (en) | Intelligent five-shaft manipulator | |
| CN103737587A (en) | Intelligent five-shaft manipulator | |
| CN215350238U (en) | Swing arm lifting structure | |
| CN207684806U (en) | A kind of AGV jacking-rotating devices | |
| CN207426556U (en) | A kind of line data-logging device for reducing line loss | |
| CN211440038U (en) | Transmission mechanism of mechanical dexterous hand | |
| CN209615522U (en) | A kind of mechanical arm of educational robot | |
| CN113288661A (en) | Swing arm lifting system | |
| CN206011060U (en) | Five axis robot of parallel-moving type | |
| CN219692167U (en) | Gear box special for magnetomotive generator | |
| CN207643129U (en) | Stamping mechanical arm | |
| CN108635046A (en) | Micro-wound operation robot hangs positioning and orientation mechanical arm | |
| CN115922776B (en) | Five pile up neatly robots | |
| CN215318671U (en) | Automatic change manipulator and move device that carries | |
| CN213915885U (en) | Electric power cable circular cutting device | |
| CN108214537A (en) | A kind of multi-functional flexible grasping mechanism | |
| CN212445312U (en) | Electric push rod type automatic lifting mechanical arm | |
| CN209455651U (en) | A kind of transfer mechanism of energy synchronous rotary | |
| CN209507043U (en) | A kind of transfer mechanism of energy synchronous rotary overturning | |
| JP3240824U (en) | Movable platform for 5-axis robot and its 5-axis robot | |
| CN211460978U (en) | Medical tower crane electric cantilever | |
| CN111775851A (en) | Bridge, tunnel intelligent detection car mechanical arm system | |
| CN200991895Y (en) | Single driving two-freedom mechanical arm | |
| CN218364780U (en) | Manipulator for intelligent manufacturing | |
| CN217627247U (en) | Adjustable wallboard structure in electric overhead crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |