CN114560419B - 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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- CN114560419B CN114560419B CN202210207753.4A CN202210207753A CN114560419B CN 114560419 B CN114560419 B CN 114560419B CN 202210207753 A CN202210207753 A CN 202210207753A CN 114560419 B CN114560419 B CN 114560419B
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- aluminum
- ball screw
- fixing plate
- tube
- lifting column
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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 112
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 112
- 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 24
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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 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 lift up and down; the driving device consists of a motor and a speed reducer; the lifting column is composed of an aluminum outer pipe, an aluminum middle pipe and an aluminum inner pipe, wherein the inner pipe is hollow, the upper end and the lower end of the aluminum outer pipe are mutually communicated, the aluminum inner pipe, the aluminum middle pipe and the aluminum outer pipe are sequentially nested together from inside to outside, an upper cover plate is fixedly arranged at the top of the aluminum inner pipe, and a first ball screw used for driving the aluminum middle pipe to move up and down and a second ball screw used for driving the aluminum inner pipe to move up and down are vertically arranged inside the lifting column. The three-section lifting column with the two solid ball screws has high transmission efficiency and less heating loss, can realize continuous operation, does not have the conditions of poor operation such as shaking and the like under the condition of receiving a large deflection load, can bear the large deflection load and still stably operates, and has good 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 structure of the commonly used three-section lifting column is mainly divided into a transmission structure of a screw rod and a chain and a transmission structure of the screw rod and a hollow screw rod.
The transmission structure of the screw rod and the chain mainly has the following problems: the chain has a clearance in the transmission, especially the back clearance can increase when moving a section to lead to the product to appear shaking when the lift post moves down when receiving the deflection load.
The transmission structure of the screw rod and the hollow screw rod mainly has the following problems: the strength of the hollow screw rod is lower, and the hollow ball screw rod is required to be put down in the hollow ball screw rod, so that the outer diameter of the hollow screw rod is larger, the operation efficiency of the product is low, and the hollow ball screw rod 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 generates heat seriously, can not work continuously, and needs to have longer work-rest ratio, for example work for three minutes in one minute, can not bear big unbalanced load in addition, when receiving the circumstances of great unbalanced load, can appear shaking the unstable trouble of transmission such as post down motion.
Disclosure of Invention
The invention aims to solve the technical problem of providing a three-section lifting column with two solid ball screws, which has high transmission efficiency, can continuously work and can bear large deflection load.
In order to solve the technical problems, the invention is realized by the following technical scheme: the three-section lifting column with the two solid ball screws is provided with a lower bottom plate, wherein the lifting column and a driving device capable of driving the lifting column to lift up and down are arranged in parallel in the horizontal direction at the top of the lower bottom plate; 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 a first synchronous wheel in transmission connection with the speed reducer is arranged at the bottom of the speed reducer; the lifting column consists of an aluminum outer pipe, an aluminum middle pipe and an aluminum inner pipe, wherein the aluminum outer pipe, the aluminum middle pipe and the aluminum inner pipe are hollow in the interior 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 nested 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; the aluminum inner pipe is internally provided with a first ball screw which is vertically arranged, 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 screw nut in threaded fit with the first ball screw is arranged at a position above the second synchronous wheel, a middle pipe fixing plate with a horizontal top is fixedly arranged on the first screw nut, and the bottom of the aluminum middle pipe is fixedly connected to the middle pipe fixing plate; the rotary section bar 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 rotary section bar to synchronously rotate, and the rotary section bar can move up and down along the height direction of the first ball screw through the internal hollow; the rotary section bar is fixedly provided with a third synchronous wheel at a position above the middle pipe fixing plate, an inner pipe fixing plate with a horizontal top is arranged at a position above the third synchronous wheel, the bottom of the inner pipe of the aluminum material is fixedly connected to the inner pipe fixing plate, and the inner pipe fixing plate is in clearance fit with the rotary section bar; the middle pipe fixing plate is movably connected with a second ball screw which is vertically arranged, the second ball screw is arranged in parallel with the first ball screw left and 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 in a left-right mode is fixedly arranged at a position, located between the inner pipe fixing plate and the middle pipe fixing plate, on the second ball screw, and the fourth synchronizing wheel is in transmission connection with the third synchronizing wheel through a second synchronizing belt.
Furthermore, gaps are formed between the aluminum outer tube and the aluminum middle tube and between the aluminum middle tube and the aluminum inner tube, wherein a plurality of uniformly distributed plastic sliding sheets are arranged on the periphery of the hollow inner walls of the aluminum outer tube and the aluminum middle tube close to the top and the periphery of the outer sides of the aluminum middle tube and the aluminum inner tube close to the bottom, and the thickness of each plastic sliding sheet is identical with the gaps between the aluminum outer tube and the aluminum middle tube and the gaps between the aluminum middle tube and the aluminum inner tube.
Further, the first ball screw is movably connected with the lower bottom plate through a bearing.
Further, a transmission block capable of driving the rotary section bar to synchronously rotate with the first ball screw 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 inner hollow of the rotary section bar.
Further, the rotary section bar is movably connected with the middle pipe fixing plate through a bearing, and the bearing for connecting the rotary section bar with the middle pipe fixing plate is fixedly connected with the bearing fixing seat fixedly arranged on the middle pipe fixing plate.
Further, a joint opening which is convenient for the first synchronous belt to be connected is arranged at the bottom of one side of the aluminum outer tube corresponding to the driving device.
Further, the second ball screw is movably connected with the middle tube fixing plate through a bearing.
Further, a limit nut is fixedly arranged at the top of the second ball screw, and an anti-collision pad is arranged at the bottom of the limit nut.
Further, a limiting block is fixedly arranged at the bottom of the middle pipe fixing plate, and a limiting sensor corresponding to the limiting block is fixedly arranged at the top of the lower bottom plate.
Compared with the prior art, the invention has the following advantages: the three-section lifting column with the two solid ball screws has high transmission efficiency and less heating loss, can realize continuous operation, does not have the conditions of poor operation such as shaking and the like under the condition of receiving a large deflection load, can bear the large deflection load and still stably operates, and has good 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 the structure of an aluminum outer tube in a three-section lifting column with two solid ball screws;
FIG. 3 is a schematic view of a three-section lifting column aluminum middle tube structure with two solid ball screws according to the present invention;
FIG. 4 is a schematic view of the structure of an inner tube of an aluminum material in a three-section lifting column with two solid ball screws according to the invention;
FIG. 5 is a top plan view of the three section lifting column of the present invention with two solid ball screws with the aluminum outer tube, the aluminum middle tube and the aluminum inner tube 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 cross-sectional view of the internal structure of a three-section lifting column with 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 fixing seat; 32. a first synchronizing wheel; 33. a first synchronization belt; 34. a second synchronizing wheel; 4. lifting columns; 41. an aluminum outer tube; 411. a connecting port; 42. an aluminum middle tube; 421. a middle tube fixing plate; 422. a limiting block; 423. a limit sensor; 43. an aluminum inner tube; 431. an inner tube fixing plate; 44. a plastic slide; 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 timing belt; 614. a transmission block; 7. a second ball screw; 71. a second lead screw nut; 72. a fourth synchronizing wheel; 73. and a limit nut.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
The three-section lifting column with the two solid ball screws shown in fig. 1, 6 and 7 is provided with a lower bottom plate 1, wherein lifting columns 4 and a driving device capable of driving the lifting columns 4 to move up and down are arranged in parallel in the horizontal direction at the top of the lower bottom plate 1; the driving device consists of a motor 2 and a speed reducer 3, wherein 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 synchronous wheel 32 in transmission connection with the speed reducer 3 is arranged at the bottom of 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, wherein the aluminum outer tube 41 is hollow in the interior and the upper end and the lower end of the aluminum outer tube are mutually communicated, the aluminum inner tube 43, the aluminum middle tube 42 and the aluminum outer tube 41 are sequentially nested 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 a lower bottom plate 1; the inside of the aluminum inner pipe 43 is provided with a first ball screw 61 vertically arranged, 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 synchronizing 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, 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; the first ball screw 61 is sleeved with a rotary section bar 6 with hollow inside and communicated upper and lower ends outside a part above the middle tube fixing plate 421, the rotary 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 rotary section bar 6 to synchronously rotate, and the rotary 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 on the rotary section bar 6 at a position above the middle tube fixing plate 421, an inner tube fixing plate 431 with a horizontal top is arranged on the position above the third synchronizing wheel 612, the bottom of the inner tube 43 of aluminum is fixedly connected to the inner tube fixing plate 431, and the inner tube fixing plate 431 is in clearance fit with the rotary section bar 6; the middle pipe fixing plate 421 is movably connected with a second ball screw 7 vertically arranged, the second ball screw 7 is arranged in parallel with the first ball screw 61 left and right, a second screw nut 71 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 passes through the second screw nut 71 and extends upwards above the top of the inner pipe fixing plate 431; the second ball screw 7 is fixedly provided with a fourth synchronizing wheel 72 corresponding to the third synchronizing wheel 612 in the left-right direction at a position 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 synchronizing belt 613.
In order to facilitate the up-and-down movement of the aluminum outer tube 41 and the aluminum inner tube 43 relative to the aluminum outer tube 41 and the aluminum inner tube 43, gaps are reserved 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 a plurality of uniformly distributed plastic sliding sheets 44 are arranged on the periphery of the hollow inner walls of the aluminum outer tube 41 and the aluminum middle tube 42 close to the top and on the periphery of the outer side of the aluminum middle tube 42 and the aluminum inner tube 43 close to the bottom, the thickness of the plastic sliding sheets 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 a sliding and guiding effect can be achieved among the aluminum outer tube 41, the aluminum middle tube 42 and the aluminum inner tube 43 which are mutually nested together through the plastic sliding sheets 44.
In order to ensure the rotational freedom of the first ball screw 61 on the lower plate 1, the first ball screw 61 is movably connected with the lower plate 1 through a bearing.
In order to drive the rotary section bar 6 to synchronously rotate through the first ball screw 61, a transmission block 614 capable of driving the rotary section bar 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 outer side of the transmission block 614 is provided with a square edge matched with the hollow inner wall of the rotary section bar 6, so that power transmission is facilitated, and the transmission block 614 is in sliding fit with the hollow inside the rotary section bar 6 up and down, so that the rotary section bar 6 can conveniently move up and down along the height direction of the first ball screw 61 under the drive of the middle pipe fixing plate 421.
In order to ensure the rotational freedom of the rotary section bar 6 relative to the middle tube fixing plate 421, the rotary section bar 6 is movably connected with the middle tube fixing plate 421 through a bearing, and the bearing connecting the rotary section bar 6 and the middle tube fixing plate 421 is fixedly connected with the bearing fixing seat 45 fixedly arranged on the middle tube 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, the first synchronous belt 33 is ensured not to be interfered by the aluminum outer tube 41, and a joint 411 which facilitates the connection of the first synchronous belt 33 is arranged at the bottom of one side of the aluminum outer tube 41 corresponding to the driving device.
In order to ensure the rotational freedom of the second ball screw 7 on the middle tube fixing plate 421, the second ball screw 7 is movably connected with the middle tube fixing plate 421 through a bearing.
In order to limit the ascending distance of the second screw nut 71 and ensure safety, a limit nut 73 is fixedly arranged at the top of the second ball screw 7, and a crash pad is arranged at the bottom of the limit nut.
In order to ensure the safe distance between the middle tube fixing plate 421 and the lower base plate 1, a limiting block 422 is fixedly arranged at the bottom of the middle tube fixing plate 421, and a limiting sensor 423 corresponding to the limiting block 422 is fixedly arranged at the top of the lower base plate 1.
The specific working principle is as follows: the motor 2 rotates, the power is transmitted to the first synchronizing wheel 32 after the speed reducer 3 is reduced, the first synchronizing wheel 32 transmits the motion and torque to the second synchronizing wheel 34 through the first synchronizing belt 33, the second synchronizing wheel 34 and the first ball screw 61 are fixed together, 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 perform vertical rectilinear motion when rotating, the first screw nut 611 is fixedly connected with the middle tube fixing plate 421, the first screw nut 611 drives the middle tube fixing plate 421 to perform vertical rectilinear motion when moving vertically, and the middle tube fixing plate 421 drives the aluminum middle tube 42, the rotary section bar 6, the second screw 7, the inner tube fixing plate 431 and the aluminum inner tube 43 fixed on the inner tube fixing plate 431 to vertically synchronously move along the height direction of the first ball screw 61, so that the second synchronizing wheel 34 drives the first ball screw 61 to rotate, and the first screw nut 611 drives the middle tube fixing plate 421 and the aluminum middle tube 42 to vertically rectilinear motion in the aluminum tube 41. Because the first ball screw 61 is connected with the rotary section bar 6 through the transmission block 614, the first ball screw 61 drives the rotary section bar 6 to synchronously rotate when rotating, the rotary section bar 6 drives the third synchronizing wheel 612 fixedly connected with the rotary section bar 6 to rotate, the third synchronizing wheel 612 drives the fourth synchronizing wheel 72 to rotate through the second synchronizing belt 613, the fourth synchronizing wheel 72 drives the second ball screw 7 to rotate, the second ball screw 7 drives the second screw nut 71 to linearly move up and down when rotating, and because the aluminum inner tube 43 is fixedly connected on the inner tube fixing plate 431, the aluminum inner tube 43 moves up and down synchronously 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 highest position and the lowered lowest position of the lifting column 4 is called the stroke, and the lifting column 4 can be stopped and started at any position between the highest and the lowest positions.
The three-section lifting column with the two solid ball screws has high transmission efficiency and less heating loss, can realize continuous operation, does not have the conditions of poor operation such as shaking and the like under the condition of receiving a large deflection load, can bear the large deflection load and still stably operates, and has good stability.
It is emphasized that: the above embodiments are merely preferred embodiments of the present invention, and the present invention is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (9)
1. A three-section lifting column with two solid ball screws, which is characterized in that: the lifting device is provided with a lower bottom plate (1), wherein lifting columns (4) and a driving device capable of driving the lifting columns (4) to move up and down are arranged in parallel in the horizontal direction at the top of the lower bottom plate (1); the driving device consists of a motor (2) and a speed reducer (3), wherein 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 fixing seat (31), and a first synchronous wheel (32) in transmission connection with the speed reducer (3) is arranged at the bottom of the speed reducer; the lifting column (4) consists of an aluminum outer tube (41), an aluminum middle tube (42) and an aluminum inner tube (43), wherein the aluminum outer tube (41) is hollow in the interior, the upper end and the lower end of the aluminum outer tube are mutually communicated, the aluminum inner tube (43), the aluminum middle tube (42) and the aluminum outer tube (41) are sequentially nested 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 a lower bottom plate (1); the aluminum inner tube (43) is internally provided with a first ball screw (61) vertically arranged, 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 screw nut (611) in threaded fit with the first ball screw (61) is arranged at a position above the second synchronous wheel (34), 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); the rotary section bar (6) with hollow inside and communicated upper and lower ends is sleeved outside the part, above the middle tube fixing plate (421), of the first ball screw (61), the rotary section bar (6) is in transmission connection with the first ball screw (61) and in clearance fit with the first screw nut (611), the first ball screw (61) can drive the rotary section bar (6) to synchronously rotate, and the rotary 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 on the rotary section bar (6) at a position above the middle tube fixing plate (421), an inner tube fixing plate (431) with a horizontal top is arranged at a position above the third synchronizing wheel (612), the bottom of the aluminum inner tube (43) is fixedly connected to the inner tube fixing plate (431), and the inner tube fixing plate (431) is in clearance fit with the rotary section bar (6); the middle pipe fixing plate (421) is movably connected with a second ball screw (7) which is vertically arranged, the second ball screw (7) is arranged in parallel with the first ball screw (61) left and 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) passes 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) corresponding to the third synchronizing wheel (612) is fixedly arranged at a position between the inner pipe fixing plate (431) and the middle pipe fixing plate (421) on the second ball screw (7), and the fourth synchronizing wheel (72) is in transmission connection with the third synchronizing wheel (612) through a second synchronizing belt (613).
2. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: gaps are reserved 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), the periphery of the hollow inner wall of the aluminum outer tube (41) and the hollow inner wall of the aluminum middle tube (42) close to the top, and the periphery of the outer side of the aluminum middle tube (42) and the outer side of the aluminum inner tube (43) close to the bottom are respectively provided with a plurality of uniformly distributed plastic sliding sheets (44), and the thickness of each plastic sliding sheet (44) is identical 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).
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 transmission block (614) capable of driving the rotary section bar (6) to synchronously rotate with the first ball screw (61) is fixedly arranged at a position, close to the top, on the first ball screw (61), and the transmission block (614) is in vertical sliding fit with the inside of the rotary section bar (6).
5. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: the rotary section bar (6) is movably connected with the middle tube fixing plate (421) through a bearing, and the bearing for connecting the rotary section bar (6) with the middle tube fixing plate (421) is fixedly connected with the bearing fixing seat (45) fixedly arranged on the middle tube 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 tube (41) corresponding to the driving device is provided with a joint opening (411) which is convenient for the joint of the 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 tube 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 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.
9. A three-section lifting column with two solid ball screws as claimed in claim 1, wherein: limiting blocks (422) are fixedly arranged at the bottoms of the middle tube fixing plates (421), and limiting sensors (423) corresponding to the limiting blocks (422) are fixedly arranged at the tops of the lower base plates (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 CN114560419A (en) | 2022-05-31 |
| CN114560419B true 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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| Country | Link |
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| CN (1) | CN114560419B (en) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114560419A (en) | 2022-05-31 |
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