CN112978578A - Tower crane cab with rotary platform - Google Patents
Tower crane cab with rotary platform Download PDFInfo
- Publication number
- CN112978578A CN112978578A CN202110504813.4A CN202110504813A CN112978578A CN 112978578 A CN112978578 A CN 112978578A CN 202110504813 A CN202110504813 A CN 202110504813A CN 112978578 A CN112978578 A CN 112978578A
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- China
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- fixedly connected
- platform
- cab
- tower crane
- fixed box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of tower cranes, in particular to a tower crane cab with a rotary platform, wherein the platform is positioned below one side of an inlet and an outlet of the cab, the upper part of one side of the inlet and the outlet of the cab is fixedly connected with a fixed box, a rotary positioning mechanism is arranged in the fixed box, one end of the rotary positioning mechanism penetrates through the lower side of the fixed box to extend outwards and is fixedly connected with a machine shell, a vertically arranged hollow column is fixedly connected to the lower side of the machine shell, and a lifting adjusting mechanism is arranged in the hollow column. According to the invention, the height adjustment of the platform can be realized by arranging the lifting adjusting mechanism, the overhaul space is improved, the operation is more convenient, the practical effect is better, the rotary positioning mechanism is arranged to move the platform to the position below the cab so as to be convenient for overhaul, the rotary positioning is more stable and accurate, the structure is simple and easy to answer, the maintenance is convenient, the structure stability is strong, the service life is long, and the safety is high.
Description
Technical Field
The invention relates to the technical field of tower cranes, in particular to a tower crane cab with a rotating platform.
Background
The tower crane is called tower crane for short, and is originated from western Europe, and the rotating crane with movable arm mounted on the upper portion of tower body is large in working space, and is mainly used for vertical and horizontal conveying of material and installation of building member in building construction.
In a tower crane cab (patent number: CN 206142681U) with a rotary platform in Chinese patent, a rotary lug plate is additionally welded on the platform and is connected with a rotary beam through a pin shaft, when a motor is overhauled, the platform can be rotated to the lower part of the cab to vacate the overhauling space, so that the passing and working operation requirements of personnel can be met, the space can be vacated when the tower crane is overhauled, the platform does not need to be disassembled when the tower crane is overhauled, and the time and the cost are saved;
however, the above-mentioned publication can only perform the rotation operation on the platform, and the rotation positioning is not stable enough;
secondly, can't carry out the lift operation to the platform, lead to overhauing the space less, the limitation is big, is not convenient for overhaul the operation, uses inconveniently.
Therefore, the person skilled in the art provides a tower crane cab with a rotating platform to solve the problems mentioned in the background art.
Disclosure of Invention
The invention aims to provide a tower crane cab with a rotary platform, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a tower crane cab with a rotary platform comprises a cab and a platform used for a driver to get in and out of the cab, wherein the platform is positioned below one side of an inlet and an outlet of the cab, a fixed box is fixedly connected to the upper part of one side of the inlet and the outlet of the cab, a rotary positioning mechanism is arranged in the fixed box, one end of the rotary positioning mechanism penetrates through the lower side of the fixed box and extends outwards and is fixedly connected with a casing, a vertically arranged hollow column is fixedly connected to the lower side of the casing, a lifting adjusting mechanism is arranged in the hollow column, a sliding opening is formed in the front side of the hollow column, one end of the lifting adjusting mechanism penetrates through the sliding opening and is fixedly connected with an L-shaped supporting frame, and the platform is fixed to the upper side of the transverse straight end of;
rotatory positioning mechanism is including fixing the rotary machine in fixed case one side, the horizontal first drive shaft that sets up of rotary machine's drive end fixedly connected with, and the one end of first drive shaft runs through and extends to fixed case in and fixedly connected with worm, the upper end inner wall of fixed case rotates through primary shaft bearing and is connected with the bull stick of vertical setting, and fixedly connected with and the worm wheel that the worm meshing is connected on the bull stick, the one end that primary shaft bearing was kept away from to the bull stick runs through the downside of fixed case and outwards extends and with casing fixed connection.
As a still further scheme of the invention: lifting adjusting mechanism is including fixing the step motor in the casing, step motor's the second drive shaft of the vertical setting of drive end fixedly connected with, and the one end of second drive shaft runs through and extends to in the hollow post and fixedly connected with lead screw, the lower extreme inner wall of casing is rotated through the one end that rotates piece and lead screw and is connected, threaded connection has the thread block on the lead screw, and the front side fixedly connected with connecting rod of thread block, the one end that the thread block was kept away from to the connecting rod run through the sliding opening and with the upper end fixed connection of L type support frame.
As a still further scheme of the invention: the side walls of the two sides of the thread block are respectively abutted against and slidably connected with the inner walls of the two sides of the hollow column.
As a still further scheme of the invention: the side walls of the two sides of the connecting rod are respectively connected with the inner walls of the two sides of the sliding opening in a sliding manner.
As a still further scheme of the invention: a through hole is formed in one side of the fixing box, the first driving shaft penetrates through the through hole, and the inner wall of the through hole is rotatably connected with the outer side wall of the first driving shaft.
As a still further scheme of the invention: the inner wall of one side of the fixed box is rotatably connected with one end, far away from the first driving shaft, of the worm through a second bearing seat.
As a still further scheme of the invention: the upside fixedly connected with guardrail frame of platform, and guardrail frame adopts welded mode and platform fixed connection.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up lift adjustment mechanism, start step motor, drive the second drive shaft and rotate, and then drive the lead screw and rotate, because lead screw and screw block threaded connection, and the axial of screw block rotates and receives the restriction of empty core column, consequently, the screw block forces to move down, and then drives the connecting rod and moves down, drives the platform that moves down fixed with L type support frame, can realize the altitude mixture control of platform, improves and overhauls the space, and it is more convenient to operate, and practical effect is better.
2. Through setting up rotary positioning mechanism, start the rotation motor work, drive first drive shaft and rotate, and then drive the worm and rotate, because worm and worm wheel meshing, and then drive the worm wheel and rotate, realize the rotation of bull stick to it is rotatory to drive the platform, with platform displacement to the below of driver's cabin, so that overhaul, rotary positioning is more stable, and is more accurate, and the structure letter is answered, easy maintenance, and the structure steadiness is strong, long service life, and the security is high.
Drawings
FIG. 1 is a schematic perspective view of a tower crane cab with a rotary platform;
FIG. 2 is a schematic perspective view of a fixed box and a hollow column in a tower crane cab with a rotary platform;
FIG. 3 is a schematic structural view of a front section of a fixed box and a hollow column in a cab of a tower crane with a rotary platform;
fig. 4 is a schematic diagram of the internal structure of a hollow column in a tower crane cab with a rotating platform.
In the figure: 1. a cab; 2. a platform; 3. a fixed box; 4. a housing; 5. a hollow column; 6. a sliding port; 7. an L-shaped support frame; 8. a rotary motor; 9. a first drive shaft; 10. a worm; 11. a rotating rod; 12. a worm gear; 13. a stepping motor; 14. a second drive shaft; 15. a screw rod; 16. a thread block; 17. a connecting rod; 18. a guardrail frame.
Detailed Description
Referring to fig. 1 to 4, in the embodiment of the invention, a tower crane cab with a rotary platform comprises a cab 1 and a platform 2 for a driver to get in and out of the cab 1, wherein the platform 2 is located below one side of an inlet and an outlet of the cab 1, a fixed box 3 is fixedly connected to the upper part of one side of the inlet and the outlet of the cab 1, a rotary positioning mechanism is arranged in the fixed box 3, one end of the rotary positioning mechanism penetrates through the lower side of the fixed box 3 to extend outwards and is fixedly connected with a casing 4, a vertically arranged hollow column 5 is fixedly connected to the lower side of the casing 4, a lifting adjusting mechanism is arranged in the hollow column 5, a sliding opening 6 is arranged on the front side of the hollow column 5, one end of the lifting adjusting mechanism penetrates through the sliding opening 6 and is fixedly connected with an L-shaped support frame 7, the support is stable, and the platform 2 is fixed;
the rotary positioning mechanism comprises a rotary motor 8 fixed on one side of the fixed box 3, the driving end of the rotary motor 8 is fixedly connected with a first driving shaft 9 transversely arranged, one end of the first driving shaft 9 penetrates through the fixed box 3 and is fixedly connected with a worm 10, the inner wall of the upper end of the fixed box 3 is rotatably connected with a vertically arranged rotating rod 11 through a first bearing seat, a worm wheel 12 meshed with the worm 10 is fixedly connected on the rotating rod 11, one end of the rotating rod 11 far away from the first bearing seat penetrates through the lower side of the fixed box 3 and extends outwards and is fixedly connected with the shell 4, the rotary motor 8 is started to work to drive the first driving shaft 9 to rotate, and further drive the worm 10 to rotate, as the worm 10 is meshed with the worm wheel 12, and further drive the worm wheel 12 to rotate, the rotation of the rotating rod 11 is realized, so as to drive the platform 2 to rotate, and the platform 2 is displaced to the lower part, the rotary positioning is more stable and accurate, the structure is simple and easy to answer, the maintenance is convenient, the structure stability is strong, the service life is long, and the safety is high;
in fig. 3: the lifting adjusting mechanism comprises a stepping motor 13 fixed in the machine shell 4, a second driving shaft 14 which is vertically arranged is fixedly connected with the driving end of the stepping motor 13, one end of the second driving shaft 14 penetrates and extends into the hollow column 5 and is fixedly connected with a screw rod 15, the inner wall of the lower end of the machine shell 4 is rotatably connected with one end of the screw rod 15 through a rotating piece, a thread block 16 is connected with the screw rod 15 in a threaded manner, a connecting rod 17 is fixedly connected with the front side of the thread block 16, one end, far away from the thread block 16, of the connecting rod 17 penetrates through the sliding opening 6 and is fixedly connected with the upper end of the L-shaped support frame 7, the stepping motor 13 is started to drive the second driving shaft 14 to rotate and further drive the screw rod 15 to rotate, as the screw rod 15 is in threaded connection with the thread block 16, and the axial rotation of the thread block 16 is limited by the hollow column 5, therefore, the thread block 16, the height adjustment of the platform 2 can be realized, the maintenance space is increased, the operation is more convenient, and the practical effect is better;
in fig. 3: the side walls of the two sides of the thread block 16 are respectively abutted against and slidably connected with the inner walls of the two sides of the hollow column 5, so that the axial rotation of the thread block 16 can be better limited;
in fig. 2: the side walls at two sides of the connecting rod 17 are respectively connected with the inner walls at two sides of the sliding opening 6 in a sliding manner, so that the connecting rod 17 can be conveniently displaced;
in fig. 3: a through hole is formed in one side of the fixed box 3, the first driving shaft 9 penetrates through the through hole, and the inner wall of the through hole is rotatably connected with the outer side wall of the first driving shaft 9, so that the first driving shaft 9 can rotate conveniently;
in fig. 3: the inner wall of one side of the fixed box 3 is rotatably connected with one end of the worm 10 far away from the first driving shaft 9 through a second bearing seat, and the effect of supporting and stabilizing the rotation of the worm 10 can be achieved;
in fig. 1: the upside fixedly connected with guardrail frame 18 of platform 2 plays the guard action, and guardrail frame 18 adopts welded mode and platform 2 fixed connection, has control switch on guardrail frame 18, and the input of rotary motor 8 and step motor 13 is convenient for control with control switch electric connection respectively.
The working principle of the invention is as follows: when the lower part of the cab 1 needs to be overhauled, a worker stands on the platform 2;
firstly, the stepping motor 13 is started to drive the second driving shaft 14 to rotate, so as to drive the screw rod 15 to rotate, and as the screw rod 15 is in threaded connection with the thread block 16 and the axial rotation of the thread block 16 is limited by the hollow column 5, the thread block 16 is forced to move downwards, so as to drive the connecting rod 17 to move downwards, so as to drive the platform 2 fixed with the L-shaped support frame 7 to move downwards, so that the height adjustment of the platform 2 can be realized, the overhaul space is improved, the operation is more convenient, and the practical effect is better;
then, start the work of rotary motor 8, drive first drive shaft 9 and rotate, and then drive worm 10 and rotate, because worm 10 and worm wheel 12 mesh, and then drive worm wheel 12 and rotate, realize the rotation of bull stick 11 to it is rotatory to drive platform 2, with the below of platform 2 displacement to driver's cabin 1, so that overhaul, rotational positioning is more stable, and is more accurate, and the structure letter is answered, easy maintenance, and the structure steadiness is strong, long service life, the security is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (8)
1. A tower crane cab with a rotary platform comprises a cab (1) and a platform (2) for a driver to get in and out of the cab (1), and is characterized in that the platform (2) is located below one side of an inlet and an outlet of the cab (1), a fixed box (3) is fixedly connected to the upper portion of one side of the inlet and the outlet of the cab (1), a rotary positioning mechanism is arranged in the fixed box (3), one end of the rotary positioning mechanism penetrates through the lower side of the fixed box (3) to extend outwards and is fixedly connected with a casing (4), and a vertically arranged hollow column (5) is fixedly connected to the lower side of the casing (4);
a lifting adjusting mechanism is arranged in the hollow column (5), a sliding opening (6) is formed in the front side of the hollow column (5), and one end of the lifting adjusting mechanism penetrates through the sliding opening (6) and is fixedly connected with an L-shaped supporting frame (7);
the platform (2) is fixed on the upper side of the transverse straight end of the L-shaped support frame (7);
the rotary positioning mechanism comprises a rotary motor (8) fixed on one side of the fixed box (3), the driving end of the rotary motor (8) is fixedly connected with a first driving shaft (9) which is transversely arranged, and one end of the first driving shaft (9) penetrates through the fixed box (3) and extends into the fixed box and is fixedly connected with a worm (10);
the upper end inner wall of fixed case (3) rotates through first bearing frame and is connected with bull stick (11) of vertical setting, and fixedly connected with worm wheel (12) of being connected with worm (10) meshing on bull stick (11), the downside that first bearing frame was run through to outside extension of the one end of bull stick (11) kept away from and casing (4) fixed connection with casing (3).
2. The tower crane cab with the rotating platform is characterized in that the lifting adjusting mechanism comprises a stepping motor (13) fixed in the machine shell (4), the driving end of the stepping motor (13) is fixedly connected with a second driving shaft (14) which is vertically arranged, and one end of the second driving shaft (14) penetrates through the hollow column (5) and is fixedly connected with a screw rod (15);
a thread block (16) is connected to the screw rod (15) in a threaded manner, and a connecting rod (17) is fixedly connected to the front side of the thread block (16);
one end of the connecting rod (17) far away from the thread block (16) penetrates through the sliding opening (6) and is fixedly connected with the upper end of the L-shaped support frame (7).
3. The tower crane cab with the rotating platform as claimed in claim 2, wherein the side walls of the two sides of the threaded block (16) are respectively abutted against and slidably connected with the inner walls of the two sides of the hollow column (5).
4. The tower crane cab with the rotating platform as claimed in claim 2, wherein the side walls on two sides of the connecting rod (17) are respectively connected with the inner walls on two sides of the sliding opening (6) in a sliding manner.
5. The tower crane cab with the rotating platform as claimed in claim 1, wherein a through hole is formed in one side of the fixed box (3), the first driving shaft (9) penetrates through the through hole, and the inner wall of the through hole is rotatably connected with the outer side wall of the first driving shaft (9).
6. The tower crane cab with the rotating platform as claimed in claim 1, wherein the inner wall of one side of the fixed box (3) is rotatably connected with one end of the worm (10) far away from the first driving shaft (9) through a second bearing seat.
7. The tower crane cab with the rotating platform as claimed in claim 1, wherein a guardrail frame (18) is fixedly connected to the upper side of the platform (2), and the guardrail frame (18) is fixedly connected with the platform (2) in a welding manner.
8. The tower crane cab with the rotating platform as claimed in claim 2, wherein the inner wall of the lower end of the machine shell (4) is rotatably connected with one end of the screw rod (15) through a rotating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110504813.4A CN112978578B (en) | 2021-05-10 | 2021-05-10 | Tower crane cab with rotary platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110504813.4A CN112978578B (en) | 2021-05-10 | 2021-05-10 | Tower crane cab with rotary platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112978578A true CN112978578A (en) | 2021-06-18 |
| CN112978578B CN112978578B (en) | 2023-01-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110504813.4A Active CN112978578B (en) | 2021-05-10 | 2021-05-10 | Tower crane cab with rotary platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN112978578B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015967A1 (en) * | 2021-08-10 | 2023-02-16 | 湖南三一中型起重机械有限公司 | Operating cabin lifting platform, and engineering machinery |
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| WO2023015967A1 (en) * | 2021-08-10 | 2023-02-16 | 湖南三一中型起重机械有限公司 | Operating cabin lifting platform, and engineering machinery |
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| Publication number | Publication date |
|---|---|
| CN112978578B (en) | 2023-01-31 |
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