CN114560419A - Three-section lifting column with two solid ball screws - Google Patents
Three-section lifting column with two solid ball screws Download PDFInfo
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- CN114560419A CN114560419A CN202210207753.4A CN202210207753A CN114560419A CN 114560419 A CN114560419 A CN 114560419A CN 202210207753 A CN202210207753 A CN 202210207753A CN 114560419 A CN114560419 A CN 114560419A
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- aluminum
- ball screw
- fixing plate
- lifting column
- middle pipe
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- 239000007787 solid Substances 0.000 title claims abstract description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 105
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 105
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 21
- 230000001360 synchronised effect Effects 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
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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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
-
- 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
- B66F13/00—Common constructional features or accessories
-
- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a three-section lifting column with two solid ball screws, which is provided with a lower base plate, wherein the top of the lower base plate is provided with a lifting column and a driving device capable of driving the lifting column to move up and down; the driving device consists of a motor and a speed reducer; the lifting column is formed by an aluminum outer tube, an aluminum inner tube and an aluminum inner tube which are internally hollow and are mutually communicated at the upper end and the lower end, the aluminum inner tube and the aluminum outer tube are sequentially sleeved together from inside to outside, an upper cover plate is fixedly arranged at the top of the aluminum inner tube, and a first ball screw used for driving the aluminum inner tube to move up and down and a second ball screw used for driving the aluminum inner tube to move up and down are vertically arranged in the lifting column. The three-section lifting column with the two solid ball screws is high in transmission efficiency, low in heating loss, capable of achieving continuous working, free of poor operation conditions such as shaking and the like under the condition of large deviation load, capable of bearing large deviation load and still stably operating, and good in stability.
Description
Technical Field
The invention relates to a three-section lifting column, in particular to a three-section lifting column with two solid ball screws.
Background
At present, the commonly used three-section lifting column mainly comprises a screw rod and chain transmission structure and a screw rod and hollow screw rod transmission structure.
Wherein, the transmission structure of lead screw + chain mainly has following problem: the chain has the clearance in the transmission, especially the back clearance can increase when moving one section to lead to the product to receive when partial load, the shake can appear when the lift post moves downwards.
And the main problem that exists of transmission structure of lead screw + hollow lead screw is: the hollow screw rod has lower strength, and the hollow screw rod has larger outer diameter ratio due to the fact that the solid screw rod needs to be put down inside the hollow ball screw rod, so that the hollow screw rod is low in operation efficiency and is not suitable for continuous movement.
In summary, the main technical problems of the existing three-section lifting column can be summarized as follows: the transmission efficiency is low, and the product is serious that generates heat, can not continuous operation, and need have longer work rest ratio, for example work one minute rest three minutes, can not bear big unbalance loading in addition, when receiving the condition of great deviation load, can appear the transmission unstability trouble such as shake when the lift post moves down.
Disclosure of Invention
The invention aims to solve the technical problem of providing a three-section lifting column which has high transmission efficiency, can continuously work and can bear large deflection load and is provided with two solid ball screws.
In order to solve the technical problems, the invention is realized by the following technical scheme: a three-section lifting column with two solid ball screws is provided with a lower bottom plate, wherein the top of the lower bottom plate is provided with the lifting column and a driving device capable of driving the lifting column to move up and down in parallel in the horizontal direction; the driving device consists of a motor and a speed reducer, the motor is arranged right above the speed reducer and is in transmission connection with the speed reducer, the speed reducer is fixedly arranged on the lower bottom plate through a fixed seat, and the bottom of the speed reducer is provided with a first synchronizing wheel in transmission connection with the speed reducer; the lifting column consists of an aluminum outer pipe, an aluminum middle pipe and an aluminum inner pipe which are hollow inside and are mutually communicated at the upper end and the lower end, the aluminum inner pipe, the aluminum middle pipe and the aluminum outer pipe are sequentially sleeved together from inside to outside, an upper cover plate is fixedly arranged at the top of the aluminum inner pipe, and the bottom of the aluminum outer pipe is fixedly arranged on a lower bottom plate; a first ball screw is vertically arranged in the aluminum inner tube, the bottom of the first ball screw is movably connected to the lower bottom plate, a second synchronous wheel is fixedly arranged on the first ball screw at a position corresponding to the first synchronous wheel, and the second synchronous wheel is in transmission connection with the first synchronous wheel through a first synchronous belt; a first lead screw nut in threaded fit with the first ball screw is arranged at a position, above the second synchronizing wheel, on the first ball screw, a middle pipe fixing plate with a horizontal top is fixedly arranged on the first lead screw nut, and the bottom of the aluminum middle pipe is fixedly connected to the middle pipe fixing plate; a rotating section which is hollow inside and is communicated with the upper end and the lower end is sleeved outside a part, above the middle pipe fixing plate, of the first ball screw, the rotating section is in transmission connection with the first ball screw and is in clearance fit with the first screw nut, the first ball screw can drive the rotating section to synchronously rotate, and the rotating section can move up and down along the height direction of the first ball screw through the inner hollow part; a third synchronizing wheel is fixedly arranged at the position, above the middle pipe fixing plate, of the rotating section bar, an inner pipe fixing plate with a horizontal top is arranged at the position, above the third synchronizing wheel, of the rotating section bar, the bottom of the aluminum inner pipe is fixedly connected to the inner pipe fixing plate, and the inner pipe fixing plate is in clearance fit with the rotating section bar; a second ball screw which is vertically arranged is movably connected to the middle pipe fixing plate, the second ball screw and the first ball screw are arranged in parallel from left to right, a second screw nut which is in threaded fit with the second ball screw is arranged on the second ball screw, the second screw nut is fixedly connected with the inner pipe fixing plate, and the second ball screw penetrates through the second screw nut and extends upwards above the top of the inner pipe fixing plate; and a fourth synchronizing wheel corresponding to the third synchronizing wheel left and right is fixedly arranged at a position, between the inner tube fixing plate and the middle tube fixing plate, on the second ball screw, and the fourth synchronizing wheel is in transmission connection with the third synchronizing wheel through a second synchronous belt.
Further, gaps are arranged between the aluminum outer tube and the aluminum middle tube and between the aluminum middle tube and the aluminum inner tube, a plurality of uniformly distributed plastic sliding pieces are arranged on the periphery of the hollow inner wall of the aluminum outer tube and the aluminum middle tube, which is close to the top, and the periphery of the aluminum middle tube and the aluminum inner tube, which is close to the bottom, and the thickness of each plastic sliding piece is matched with the gaps between the aluminum outer tube and the aluminum middle tube, between the aluminum middle tube and the aluminum inner tube.
Furthermore, the first ball screw is movably connected with the lower bottom plate through a bearing.
Furthermore, a transmission block capable of driving the rotating section bar and the first ball screw to synchronously rotate is fixedly arranged at a position, close to the top, on the first ball screw, and the transmission block is in vertical sliding fit with the hollow inside of the rotating section bar.
Furthermore, the rotating section bar is movably connected with the middle pipe fixing plate through a bearing, and the bearing for connecting the rotating section bar with the middle pipe fixing plate is fixedly connected with a bearing fixing seat fixedly arranged on the middle pipe fixing plate.
Furthermore, a connecting port which is convenient for the connection of the first synchronous belt is arranged at the bottom of one side of the aluminum outer pipe corresponding to the driving device.
Furthermore, the second ball screw is movably connected with the middle pipe fixing plate through a bearing.
Furthermore, a limiting nut is fixedly arranged at the top of the second ball screw, and an anti-collision pad is arranged at the bottom of the limiting nut.
Furthermore, the bottom of the middle pipe fixing plate is fixedly provided with a limiting block, and the top of the lower bottom plate is fixedly provided with a limiting inductor corresponding to the limiting block.
Compared with the prior art, the invention has the advantages that: the three-section lifting column with the two solid ball screws is high in transmission efficiency, low in heating loss, capable of achieving continuous working, free of poor operation conditions such as shaking and the like under the condition of large deviation load, capable of bearing large deviation load and still stably operating, and good in stability.
Drawings
FIG. 1 is a schematic perspective view of a three-section lifting column with two solid ball screws according to the present invention;
FIG. 2 is a schematic view of an aluminum outer tube in a three-section lifting column with two solid ball screws according to the present invention;
FIG. 3 is a schematic view of an aluminum-tube structure in a three-section lifting column with two solid ball screws according to the present invention;
FIG. 4 is a schematic view of an aluminum inner tube structure of a three-section lifting column with two solid ball screws according to the present invention;
FIG. 5 is a top view of the three-section lifting column of the present invention after the aluminum outer tube, the aluminum middle tube and the aluminum inner tube are assembled;
FIG. 6 is a schematic view of the internal structure of a three-section lifting column with two solid ball screws according to the present invention;
fig. 7 is a sectional view showing the internal structure of a three-section lifting column having two solid ball screws according to the present invention.
In the figure: 1. a lower base plate; 2. a motor; 3. a speed reducer; 31. a fixed seat; 32. a first synchronizing wheel; 33. a first synchronization belt; 34. a second synchronizing wheel; 4. a lifting column; 41. an aluminum outer tube; 411. a mouthpiece; 42. an aluminum middle pipe; 421. a middle pipe fixing plate; 422. a limiting block; 423. a limit sensor; 43. an aluminum inner tube; 431. an inner tube fixing plate; 44. a plastic slider; 45. a bearing fixing seat; 5. an upper cover plate; 6. rotating the profile; 61. a first ball screw; 611. a first lead screw nut; 612. a third synchronizing wheel; 613. a second synchronous belt; 614. a transmission block; 7. a second ball screw; 71. a second feed screw nut; 72. a fourth synchronizing wheel; 73. and a limiting nut.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
Fig. 1, 6 and 7 show a three-section lifting column with two solid ball screws, which comprises a lower bottom plate 1, wherein a lifting column 4 and a driving device capable of driving the lifting column 4 to move up and down are arranged in parallel at the top of the lower bottom plate 1 in the horizontal direction; the driving device consists of a motor 2 and a speed reducer 3, the motor 2 is arranged right above the speed reducer 3 and is in transmission connection with the speed reducer 3, the speed reducer 3 is fixedly arranged on the lower bottom plate 1 through a fixed seat 31, and the bottom of the speed reducer 3 is provided with a first synchronizing wheel 32 in transmission connection with the speed reducer 3; as shown in fig. 2 to 4, the lifting column 4 is composed of an aluminum outer tube 41, an aluminum middle tube 42 and an aluminum inner tube 43 which are hollow inside and have upper and lower ends mutually communicated, the aluminum inner tube 43, the aluminum middle tube 42 and the aluminum outer tube 41 are sequentially overlapped from inside to outside, wherein the top of the aluminum inner tube 43 is fixedly provided with an upper cover plate 5, and the bottom of the aluminum outer tube 41 is fixedly arranged on the lower bottom plate 1; a first ball screw 61 which is vertically arranged is arranged in the aluminum inner tube 43, the bottom of the first ball screw 61 is movably connected to the lower bottom plate 1, a second synchronizing wheel 34 is fixedly arranged on the first ball screw 61 corresponding to the first synchronizing wheel 32, and the second synchronizing wheel 34 is in transmission connection with the first synchronizing wheel 32 through a first synchronous belt 33; a first screw nut 611 in threaded fit with the first ball screw 61 is arranged at a position above the second synchronizing wheel 34 on the first ball screw 61, a middle pipe fixing plate 421 with a horizontal top is fixedly arranged on the first screw nut 611, and the bottom of the aluminum middle pipe 42 is fixedly connected to the middle pipe fixing plate 421; a hollow rotating section bar 6 with upper and lower ends communicated is sleeved outside a part of the first ball screw 61 above the middle pipe fixing plate 421, the rotating section bar 6 is in transmission connection with the first ball screw 61 and is in clearance fit with the first screw nut 611, the first ball screw 61 can drive the rotating section bar 6 to synchronously rotate, and the rotating section bar 6 can move up and down along the height direction of the first ball screw 61 through the hollow inside; a third synchronizing wheel 612 is fixedly arranged at a position, above the middle pipe fixing plate 421, of the rotating section bar 6, an inner pipe fixing plate 431 with a horizontal top is arranged at a position, above the third synchronizing wheel 612, the bottom of the aluminum inner pipe 43 is fixedly connected to the inner pipe fixing plate 431, and the inner pipe fixing plate 431 is in clearance fit with the rotating section bar 6; a second ball screw 7 which is vertically arranged is movably connected to the middle pipe fixing plate 421, the second ball screw 7 and the first ball screw 61 are arranged in parallel from left to right, a second screw nut 71 which is in threaded fit with the second ball screw 7 is arranged on the second ball screw 7, the second screw nut 71 is fixedly connected with the inner pipe fixing plate 431, and the second ball screw 7 penetrates through the second screw nut 71 and extends upwards above the top of the inner pipe fixing plate 431; a fourth synchronizing wheel 72 corresponding to the third synchronizing wheel 612 from left to right is fixedly arranged on the second ball screw 7 between the inner tube fixing plate 431 and the middle tube fixing plate 421, and the fourth synchronizing wheel 72 is in transmission connection with the third synchronizing wheel 612 through a second synchronous belt 613.
In order to facilitate the aluminum middle tube 42 to move up and down relative to the aluminum outer tube 41 and the aluminum inner tube 43 relative to the aluminum middle tube 42, gaps are formed between the aluminum outer tube 41 and the aluminum middle tube 42 and between the aluminum middle tube 42 and the aluminum inner tube 43, wherein the periphery of the hollow inner wall of the aluminum outer tube 41 and the aluminum middle tube 42 close to the top and the periphery of the outer side of the aluminum middle tube 42 and the aluminum inner tube 43 close to the bottom are respectively provided with a plurality of uniformly distributed plastic sliding sheets 44, the thickness of each plastic sliding sheet 44 is matched with the gaps between the aluminum outer tube 41 and the aluminum middle tube 42 and between the aluminum middle tube 42 and the aluminum inner tube 43, and the plastic sliding sheets 44 can play a role in sliding and guiding roles among the aluminum outer tube 41, the aluminum middle tube 42 and the aluminum inner tube 43 which are mutually overlapped.
In order to ensure the rotational freedom of the first ball screw 61 on the lower base plate 1, the first ball screw 61 is movably connected with the lower base plate 1 through a bearing.
In order to drive the rotating profile 6 to synchronously rotate through the first ball screw 61, a transmission block 614 capable of driving the rotating profile 6 to synchronously rotate with the first ball screw 61 is fixedly arranged at a position, close to the top, of the first ball screw 61; the square straight edges matched with each other are arranged on the outer side of the transmission block 614 and the hollow inner wall of the rotating section bar 6, so that power transmission is facilitated, the transmission block 614 is in up-and-down sliding fit with the hollow inner wall of the rotating section bar 6, and the rotating section bar 6 is convenient to move up and down along the height direction of the first ball screw 61 under the driving of the middle pipe fixing plate 421.
In order to ensure the rotational freedom degree of the rotating section bar 6 relative to the middle pipe fixing plate 421, the rotating section bar 6 is movably connected with the middle pipe fixing plate 421 through a bearing, and the bearing for connecting the rotating section bar 6 with the middle pipe fixing plate 421 is fixedly connected with the bearing fixing seat 45 fixedly arranged on the middle pipe fixing plate 421.
In order to facilitate the connection of the first synchronous belt 33 between the first synchronous wheel 32 and the second synchronous wheel 34 and ensure that the first synchronous belt 33 is not interfered by the aluminum outer tube 41, the bottom of one side of the aluminum outer tube 41 corresponding to the driving device is provided with a connecting port 411 which facilitates the connection of the first synchronous belt 33.
In order to ensure the rotational freedom degree of the second ball screw 7 on the middle pipe fixing plate 421, the second ball screw 7 is movably connected with the middle pipe fixing plate 421 through a bearing.
In order to limit the ascending distance of the second lead screw nut 71 and ensure the safety, a limit nut 73 is fixedly arranged at the top of the second ball screw 7, and an anti-collision pad is arranged at the bottom of the limit nut.
In order to ensure the safe distance between the middle pipe fixing plate 421 and the lower plate 1, the bottom of the middle pipe fixing plate 421 is fixedly provided with a limit block 422, and the top of the lower plate 1 is fixedly provided with a limit sensor 423 corresponding to the limit block 422.
The specific working principle is as follows: the motor 2 rotates, the power is transmitted to the first synchronizing wheel 32 after being reduced by the speed reducer 3, the first synchronizing wheel 32 transmits the motion and the torque to the second synchronizing wheel 34 through the first synchronous belt 33, because the second synchronizing wheel 34 is fixed with the first ball screw 61, the second synchronizing wheel 34 drives the first ball screw 61 to synchronously rotate, the first ball screw 61 drives the first screw nut 611 to do vertical linear motion when rotating, because the first screw nut 611 is fixedly connected with the middle pipe fixing plate 421, the first screw nut 611 drives the middle pipe fixing plate 421 to do vertical synchronous motion when moving vertically linearly, the middle pipe fixing plate 421 drives the aluminum middle pipe 42, the rotary section bar 6, the second screw 7, the inner pipe fixing plate 431 and the aluminum inner pipe 43 fixed on the inner pipe fixing plate 431 to move vertically and synchronously along the height direction of the first ball screw 61, therefore, when the second synchronizing wheel 34 drives the first ball screw 61 to rotate, the first screw nut 611 drives the middle tube fixing plate 421 and the aluminum middle tube 42 to perform vertical linear motion in the aluminum outer tube 41. Because the first ball screw 61 is connected with the rotating section bar 6 through the transmission block 614, the first ball screw 61 can drive the rotating section bar 6 to synchronously rotate when rotating, the rotating section bar 6 drives the third synchronizing wheel 612 fixedly connected with the rotating section bar to rotate, the third synchronizing wheel 612 drives the fourth synchronizing wheel 72 to rotate through the second synchronous belt 613, the fourth synchronizing wheel 72 drives the second ball screw 7 to rotate, the second ball screw 7 can drive the second screw nut 71 to linearly move up and down when rotating, because the aluminum inner tube 43 is fixedly connected on the inner tube fixing plate 431, the aluminum inner tube 43 can synchronously move up and down under the driving of the inner tube fixing plate 431 when the inner tube fixing plate 431 moves up and down.
The dimension between the raised uppermost position and the lowered lowermost position of the lifting column 4 is called a stroke, and the lifting column 4 can be stopped and started at any position between the uppermost and lowermost positions.
The three-section lifting column with the two solid ball screws is high in transmission efficiency, low in heating loss, capable of achieving continuous working, free of poor operation conditions such as shaking and the like under the condition of large deviation load, capable of bearing large deviation load and still stably operating, and good in stability.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a three section lift post with two solid ball screw which characterized in that: the lifting device is provided with a lower bottom plate (1), wherein the top of the lower bottom plate (1) is provided with a lifting column (4) and a driving device capable of driving the lifting column (4) to move up and down in parallel in the horizontal direction; the driving device consists of a motor (2) and a speed reducer (3), the motor (2) is arranged right above the speed reducer (3) and is in transmission connection with the speed reducer (3), the speed reducer (3) is fixedly arranged on the lower base plate (1) through a fixed seat (31), and a first synchronizing wheel (32) in transmission connection with the speed reducer (3) is arranged at the bottom of the speed reducer (3); the lifting column (4) is composed of an aluminum outer tube (41), an aluminum middle tube (42) and an aluminum inner tube (43), wherein the aluminum outer tube (41), the aluminum middle tube (42) and the aluminum outer tube (41) are hollow inside and are communicated with each other at the upper end and the lower end, the aluminum inner tube (43), the aluminum middle tube (42) and the aluminum outer tube (41) are sequentially sleeved together from inside to outside, an upper cover plate (5) is fixedly arranged at the top of the aluminum inner tube (43), and the bottom of the aluminum outer tube (41) is fixedly arranged on the lower bottom plate (1); a first ball screw (61) which is vertically arranged is arranged in the aluminum inner tube (43), the bottom of the first ball screw (61) is movably connected to the lower bottom plate (1), a second synchronous wheel (34) is fixedly arranged on the first ball screw (61) corresponding to the first synchronous wheel (32), and the second synchronous wheel (34) is in transmission connection with the first synchronous wheel (32) through a first synchronous belt (33); a first lead screw nut (611) in threaded fit with the first ball screw (61) is arranged at a position, above the second synchronizing wheel (34), of the first ball screw (61), a middle pipe fixing plate (421) with a horizontal top is fixedly arranged on the first lead screw nut (611), and the bottom of the aluminum middle pipe (42) is fixedly connected to the middle pipe fixing plate (421); a hollow rotating section bar (6) with upper and lower ends communicated is sleeved outside a part, above the middle pipe fixing plate (421), of the first ball screw (61), the rotating section bar (6) is in transmission connection with the first ball screw (61) and is in clearance fit with the first screw nut (611), the first ball screw (61) can drive the rotating section bar (6) to synchronously rotate, and the rotating section bar (6) can move up and down along the height direction of the first ball screw (61) through the hollow part; a third synchronizing wheel (612) is fixedly arranged at a position, above the middle pipe fixing plate (421), of the rotating section bar (6), an inner pipe fixing plate (431) with a horizontal top is arranged at a position, above the third synchronizing wheel (612), the bottom of the aluminum inner pipe (43) is fixedly connected to the inner pipe fixing plate (431), and the inner pipe fixing plate (431) is in clearance fit with the rotating section bar (6); a second ball screw (7) which is vertically arranged is movably connected to the middle pipe fixing plate (421), the second ball screw (7) and the first ball screw (61) are arranged in parallel from left to right, a second screw nut (71) which is in threaded fit with the second ball screw (7) is arranged on the second ball screw (7), the second screw nut (71) is fixedly connected with the inner pipe fixing plate (431), and the second ball screw (7) penetrates through the second screw nut (71) and extends upwards above the top of the inner pipe fixing plate (431); and a fourth synchronizing wheel (72) which corresponds to the third synchronizing wheel (612) left and right is fixedly arranged at a position, between the inner tube fixing plate (431) and the middle tube fixing plate (421), of the second ball screw (7), and the fourth synchronizing wheel (72) is in transmission connection with the third synchronizing wheel (612) through a second synchronous belt (613).
2. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: gaps are formed between the aluminum outer pipe (41) and the aluminum middle pipe (42) and between the aluminum middle pipe (42) and the aluminum inner pipe (43), wherein the hollow inner walls of the aluminum outer pipe (41) and the aluminum middle pipe (42) are close to the periphery of the top, and the outer sides of the aluminum middle pipe (42) and the aluminum inner pipe (43) are close to the periphery of the bottom, a plurality of uniformly distributed plastic sliding sheets (44) are arranged, and the thickness of each plastic sliding sheet (44) is matched with the gaps between the aluminum outer pipe (41) and the aluminum middle pipe (42) and between the aluminum middle pipe (42) and the aluminum inner pipe (43).
3. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: the first ball screw (61) is movably connected with the lower bottom plate (1) through a bearing.
4. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: the position that is close to the top on first ball screw (61) is fixed and is provided with transmission block (614) that can drive rotatory section bar (6) and first ball screw (61) synchronous revolution, sliding fit about transmission block (614) and the inside cavity of rotatory section bar (6).
5. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: the rotating section bar (6) is movably connected with the middle pipe fixing plate (421) through a bearing, and the bearing for connecting the rotating section bar (6) with the middle pipe fixing plate (421) is fixedly connected with the bearing fixing seat (45) fixedly arranged on the middle pipe fixing plate (421).
6. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: the bottom of one side of the aluminum outer pipe (41) corresponding to the driving device is provided with a joint (411) which is convenient for the connection of a first synchronous belt (33).
7. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: the second ball screw (7) is movably connected with the middle pipe fixing plate (421) through a bearing.
8. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: and a limiting nut (73) is fixedly arranged at the top of the second ball screw (7), and an anti-collision pad is arranged at the bottom of the limiting nut.
9. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: a limiting block (422) is fixedly arranged at the bottom of the middle pipe fixing plate (421), and a limiting inductor (423) corresponding to the limiting block (422) is fixedly arranged at the top of the lower bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207753.4A CN114560419B (en) | 2022-03-04 | 2022-03-04 | Three-section lifting column with two solid ball screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207753.4A CN114560419B (en) | 2022-03-04 | 2022-03-04 | Three-section lifting column with two solid ball screws |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114560419A true CN114560419A (en) | 2022-05-31 |
| CN114560419B CN114560419B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210207753.4A Active CN114560419B (en) | 2022-03-04 | 2022-03-04 | Three-section lifting column with two solid ball screws |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269560A (en) * | 2015-11-03 | 2016-01-27 | 深圳市福士工业科技有限公司 | Novel ZR shaft assembly of horizontal multi-joint manipulator |
| CN106430030A (en) * | 2016-08-31 | 2017-02-22 | 浙江捷昌线性驱动科技股份有限公司 | Lifting stand column with ultra-low installation distance |
| CN206142727U (en) * | 2016-09-20 | 2017-05-03 | 浙江捷昌线性驱动科技股份有限公司 | Lifting upright column |
| CN108662109A (en) * | 2018-05-28 | 2018-10-16 | 浙江捷昌线性驱动科技股份有限公司 | A kind of lifting column |
-
2022
- 2022-03-04 CN CN202210207753.4A patent/CN114560419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269560A (en) * | 2015-11-03 | 2016-01-27 | 深圳市福士工业科技有限公司 | Novel ZR shaft assembly of horizontal multi-joint manipulator |
| CN106430030A (en) * | 2016-08-31 | 2017-02-22 | 浙江捷昌线性驱动科技股份有限公司 | Lifting stand column with ultra-low installation distance |
| CN206142727U (en) * | 2016-09-20 | 2017-05-03 | 浙江捷昌线性驱动科技股份有限公司 | Lifting upright column |
| CN108662109A (en) * | 2018-05-28 | 2018-10-16 | 浙江捷昌线性驱动科技股份有限公司 | A kind of lifting column |
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| Publication number | Publication date |
|---|---|
| CN114560419B (en) | 2024-05-17 |
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