Cantilever crane
By using a double-layer wire rope winding and unwinding system and a geared motor drive, the problem of insufficient lifting capacity of the cantilever crane was solved, enabling large lifting weights and stable movement, and improving safety.
Patent Information
- Application Number
- CN202422897819.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing cantilever cranes have insufficient lifting capacity, small lifting weight, and limited range of movement.
A double-layer steel wire rope hoisting and unhooking system is adopted. The first geared motor drives the thick steel wire rope for hoisting and unhooking, while the second geared motor drives the thin steel wire rope for stabilization. Combined with a fall arrestor, the steel wire rope is prevented from breaking, thus improving safety.
This significantly increases lifting capacity and range of motion, while also enhancing the safety and stability of the equipment.
Smart Images
Figure CN223592294U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hoisting equipment, in particular to a cantilever crane. BACKGROUND
[0002] The cantilever crane is used for short distance, frequent use and intensive hoisting operation, the taking device of the cantilever crane is hung on the arm end or the hoisting trolley that can run along the rotary arm, the rotary arm can rotate, but the cantilever crane of arm frame type that can not be tilted is called.
[0003] The existing cantilever crane has the defects that the object is hoisted by the electric hoist, the hoisting weight is small, and the hoisted object is moved by the running trolley on the electric hoist, and the moving range is small. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the defects of the prior art, the utility model provides a cantilever crane, which solves the problems in the background art.
[0006] (II) technical scheme
[0007] The utility model provides the following technical scheme: a cantilever crane, including bottom plate, first take -up assembly, column sleeve, second take -up assembly and hook,
[0008] The bottom plate top is bolted and has a stand, the stand top is equipped with the column sleeve through the bearing, the column sleeve top is bolted and has the crossbeam, the crossbeam one end is equipped with the reserved slot, the crossbeam bottom is arranged in the second take -up assembly, the second take -up assembly includes the second structure frame through bolted, the second structure frame inside is rotatably connected with the second winding disc through the bearing, the second winding disc outside is fixed with the fine steel wire rope and is wound, the second structure frame one side is installed with the second speed reducer through the mounting frame, the crossbeam bottom at the second structure frame one side is fixed with the anti -fall device through the rope, the bottom plate top at the stand one side is provided with the first take -up assembly, the first take -up assembly includes the first structure frame through bolted in the bottom plate top, the first structure frame inside is rotatably connected with the first winding disc through the bearing, the first winding disc outside is fixed with the thick steel wire rope and is wound, the first structure frame one side is installed with the first speed reducer through the mounting frame.
[0009] Further, the crossbeam is rotatably connected with the second wire reel at the end away from the reserved slot and both ends inside the reserved slot through the bearing, the thick steel wire rope is wound outside the second wire reel in sequence, and the second wire reel one end is provided with the hook.
[0010] Further, the hook at the bottom end of the fall arrestor is fixed to one side of the hook, and one end of the thin steel wire rope is fixed to one side of the hook through a bolt.
[0011] Further, the output shaft on one side of the first speed reducer is connected with the rotating shaft of the first winding disc through a connecting sleeve, and the output shaft on one side of the second speed reducer is connected with the rotating shaft of the first winding disc through a connecting sleeve.
[0012] Further, a supporting block is fixed between the cross beam and the column sleeve through a bolt.
[0013] Further, equidistant brakeable universal wheels are fixed to the bottom of the bottom plate through bolts.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] The first speed reducer works to drive the first winding disc to rotate, and the first winding disc rotates to release the wire, so that the hook at one end of the thick steel wire rope moves downward, the hook after moving downward is hung on the object, the first winding disc is driven to rotate reversely again, the first winding disc reversely rotates to wind the thick steel wire rope to the outside of the first winding disc, and the wire is reeled in, so that the hook and the object hung on the hook move upward, and the object is lifted, and the lifting weight is large.
[0016] When the hook moves upward to lift the object, the second speed reducer is turned on to drive the second winding disc to rotate reversely, the thin steel wire rope is reeled in, the hook is pulled through the thin steel wire rope, and the hook is not easy to shake;
[0017] The cantilever crane has the advantages that the first winding disc is driven to rotate reversely and reversely by the first speed reducer, the hook and the object hung on the hook are moved up and down through the thick steel wire rope, the hook is pulled when the hook moves upward through the thin steel wire rope, so that the hook does not shake, the hook does not fall after the thin steel wire rope is broken through the setting of the fall arrestor, and the safety of the cantilever crane is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Fig. 1 It is a whole structure schematic view of the utility model;
[0019] Fig. 2 It is a first reeling and unreeling assembly structure schematic view of the utility model;
[0020] Fig. 3 It is a second reeling and unreeling assembly structure schematic view of the utility model;
[0021] In the figure: 1, bottom plate; 2, first take-up and pay-off assembly; 201, first structural frame; 202, first winding disc; 203, thick steel wire rope; 204, first speed reducer; 3, vertical column; 4, column sleeve; 5, cross beam; 6, reserved slot; 7, second take-up and pay-off assembly; 701, second structural frame; 702, second winding disc; 703, fine steel wire rope; 704, second speed reducer; 8, fall arrestor; 9, hook; 10, first wire wheel; 11, second wire wheel; 12, brakeable universal wheel; 13, supporting block. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] Please refer to Figs. 1-3 In the embodiments of the utility model, the utility model discloses a bottom plate 1, a first take-up and pay-off assembly 2, a column sleeve 4, a second take-up and pay-off assembly 7 and a hook 9.
[0024] The vertical column 3 is bolted on the top of the bottom plate 1, the column sleeve 4 is arranged on the top end of the vertical column 3 through a bearing, the cross beam 5 is bolted on the top end of the column sleeve 4, the reserved slot 6 is formed in one end of the cross beam 5, the second take-up and pay-off assembly 7 is arranged on the bottom of the cross beam 5, the second take-up and pay-off assembly 7 comprises a second structural frame 701 bolted through a bolt, the second winding disc 702 is rotatably connected in the second structural frame 701 through a bearing, the fine steel wire rope 703 is fixedly wound on the outer side of the second winding disc 702, the second speed reducer 704 is installed on one side of the second structural frame 701 through a mounting frame, the fall arrestor 8 is fixed on the bottom of the cross beam 5 on one side of the second structural frame 701 through a rope, the first take-up and pay-off assembly 2 is arranged on the top of the vertical column 3 on one side of the bottom plate 1, the first take-up and pay-off assembly 2 comprises the first structural frame 201 bolted on the top of the bottom plate 1, the first winding disc 202 is rotatably connected in the first structural frame 201 through a bearing, the thick steel wire rope 203 is fixedly wound on the outer side of the first winding disc 202, and the first speed reducer 204 is installed on one side of the first structural frame 201 through a mounting frame.
[0025] The second wire wheel 11 is rotatably connected on the end of the cross beam 5 away from the reserved slot 6 and both ends in the reserved slot 6 through a bearing, and the thick steel wire rope 203 is wound on the outer side of the second wire wheel 11 in sequence.
[0026] The hook at the bottom end of the fall arrester 8 is fixed to one side of the hook 9, and one end of the thin steel wire rope 703 is fixed to one side of the hook 9 through a bolt.
[0027] The output shaft on one side of the first speed reducer 204 is connected with the rotating shaft of the first winding disc 202 through a connecting sleeve, and the output shaft on one side of the second speed reducer 704 is connected with the rotating shaft of the first winding disc 702 through a connecting sleeve.
[0028] The support block 13 is fixed between the cross beam 5 and the column sleeve 4 through bolts, and the arrangement of the support block 13 can improve the structural stability of the cross beam 5 and prevent the cross beam 5 from being inclined.
[0029] The bottom plate 1 is fixed with the brake universal wheel 12 at equal intervals through bolts, and the arrangement of the brake universal wheel 12 facilitates the movement of the device.
[0030] The working principle of the utility model is as follows: personnel use the power cord to connect the device with the external power supply, and simultaneously turn on the first speed reducer 204 and the second speed reducer 704, the first speed reducer 204 drives the first winding disc 202 to rotate and release the wire, so that the hook 9 at one end of the thick steel wire rope 203 moves downward, the second speed reducer 704 drives the second winding disc 702 to rotate and release the wire, so that the bottom end of the thin steel wire rope 703 can move downward with the hook 9, and the personnel hang the hook 9 after moving downward on the object, and then turn on the second speed reducer 704 and the first speed reducer 204 again, the first speed reducer 204 drives the first winding disc 202 to reverse, the first winding disc 202 reverses to wind the thick steel wire rope 203 to the outside of the first winding disc 202, and release the wire, so as to pull the hook 9 and the object hung on the hook 9 upward, and lift the object, the second speed reducer 704 drives the second winding disc 702 to reverse, and wind the thin steel wire rope 703 when the hook 9 moves upward, the hook 9 is pulled by the thin steel wire rope 703, so that the hook 9 is not easy to shake, the arrangement of the fall arrester 8 can prevent the hook 9 from falling after the thin steel wire rope 703 is broken, improve the safety of the cantilever crane, and the column sleeve 4 is sleeved on the top end of the stand column 3 through a bearing, so that the cross beam 5 at the top end of the column sleeve 4 can rotate.
[0031] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A cantilever crane, comprising a base plate (1), a first wire take-up and release assembly (2), a column sleeve (4), a second wire take-up and release assembly (7), and a hook (9); Its features are: The base plate (1) is bolted to the top of a column (3). The top of the column (3) is fitted with a column sleeve (4) via a bearing. The top of the column sleeve (4) is bolted to a crossbeam (5). One end of the crossbeam (5) has a pre-reserved groove (6). The bottom of the crossbeam (5) is set on a second take-up and release assembly (7). The second take-up and release assembly (7) includes a second structural frame (701) bolted to it. The second structural frame (701) is rotatably connected to a second winding disc (702) via a bearing inside. A thin steel wire rope (703) is wound and fixed on the outside of the second winding disc (702). The second structural frame (701) is mounted on one side via a mounting bracket. Equipped with a second geared motor (704), the crossbeam (5) is located at the bottom of the second structural frame (701) and is fixed with a fall arrestor (8) by rope. The base plate (1) is located at the top of the column (3) and is provided with a first take-up and release assembly (2). The first take-up and release assembly (2) includes a first structural frame (201) fixed to the top of the base plate (1) by bolts. The first structural frame (201) is rotatably connected to a first winding disc (202) through a bearing. A thick steel wire rope (203) is wound and fixed on the outside of the first winding disc (202). The first geared motor (204) is installed on one side of the first structural frame (201) through a mounting bracket.
2. A cantilever crane according to claim 1, characterized in that: The end of the crossbeam (5) away from the reserved groove (6) and both ends inside the reserved groove (6) are rotatably connected to the second spool (11) through bearings. The thick steel wire rope (203) is wound around the outside of the second spool (11) in sequence. A hook (9) is provided at one end of the second spool (11).
3. A cantilever crane according to claim 1, characterized in that: The hook at the bottom of the fall arrestor (8) is fixed to one side of the hook (9), and one end of the thin steel wire rope (703) is fixed to one side of the hook (9) by bolts.
4. A cantilever crane according to claim 1, characterized in that: The output shaft of the first geared motor (204) is connected to the rotating shaft of the first winding disc (202) through a connecting sleeve, and the output shaft of the second geared motor (704) is connected to the rotating shaft of the second winding disc (702) through a connecting sleeve.
5. A cantilever crane according to claim 1, characterized in that: The crossbeam (5) and the column sleeve (4) are fixed with a support block (13) by bolts.
6. A cantilever crane according to claim 1, characterized in that: The bottom of the base plate (1) is fixed with brakeable casters (12) at equal intervals by bolts.