Single-beam low-clearance four-drive steel wire rope hoist

Abstract

The utility model belongs to the technical field of hoisting equipment, and relates to a single-beam low-clearance four-drive steel wire rope hoist which comprises a pair of hoisting beams connected with a lifting hook assembly, driving mechanisms are arranged at the two ends of each hoisting beam, and each driving mechanism comprises a pair of driving beams fixed to the end of the corresponding hoisting beam. Driving wheels walking on the single beams are rotationally arranged on the inner sides of the driving beams respectively, driving gears meshed with transmission gears are formed at the ends, close to the driving beams, of the driving wheels, the transmission gears are arranged on transmission shafts rotationally connected with the driving beams in a sleeving mode, and the transmission shafts are driven by operation motors arranged on the outer sides of the driving beams to rotate; and the output shaft of the running motor is in transmission connection with the transmission shaft. According to the single-beam low-clearance four-drive steel wire rope hoist provided by the utility model, the operation stability and the bearing capacity of the steel wire rope hoist are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hoisting equipment relates to a single beam low clearance four drive wire rope hoist. BACKGROUND

[0002] The single beam low clearance wire rope hoist is a high-efficiency hoisting equipment specially designed for low space, and its core advantage lies in realizing low clearance layout through compact European style structure (such as C type or coaxial design), which can increase the lifting height by 0.2-0.5 meters compared with traditional hoists, and significantly optimize the space utilization of the plant or warehouse. For example, Chinese utility model CN219823507U (publication date: 2023.10.13) discloses a novel European style single beam hoist, which comprises a lifting motor, a winding drum, a lifting reducer, a lifting limiting assembly, a hook assembly and a trolley. The lifting motor and the lifting reducer are connected, the lifting reducer and the winding drum are connected, and the winding drum is installed on the trolley. The hook assembly is composed of a movable pulley, a protective cover, a lifting hook, a safety buckle, a support shaft and a hanging plate. The winding drum is wound with a steel wire rope, one end of the steel wire rope is fixed on the trolley, and the middle of the steel wire rope is wound on the movable pulley.

[0003] However, the conventional wire rope hoist has certain limitations in lifting capacity and running efficiency, especially when facing the hoisting operation of large and heavy objects, the maximum rated lifting capacity is only 15-20T. UTILITY MODEL CONTENTS

[0004] The utility model provides a single beam low clearance four drive wire rope hoist, which improves the running stability and carrying capacity of the wire rope hoist.

[0005] To solve the above technical problems, the utility model realizes the purpose through the following technical scheme:

[0006] A single beam low clearance four drive wire rope hoist, comprising a pair of lifting beams connected with hook assemblies, both ends of the lifting beam are provided with a driving mechanism, the driving mechanism comprises a pair of driving beams fixed at the end of the lifting beam, the inner side of the driving beam is respectively provided with a driving wheel running on the single beam, one end of the driving wheel close to the driving beam is formed with a driving gear meshing with a transmission gear, the transmission gear is sleeved on a transmission shaft rotationally connected with the driving beam, the transmission shaft is driven to rotate by a running motor provided on the outer side of the driving beam, and the running motor is a reduction motor, and the output shaft thereof is in transmission connection with the transmission shaft.

[0007] In the above-mentioned single beam low clearance four drive wire rope hoist, the two driving beams of the same driving mechanism are connected into one body through the connecting pipe, and the pull rod for pulling the driving beam is arranged between the two driving beams.

[0008] In the above-mentioned single-beam low-headroom four-drive wire rope hoist, the lifting beam is horizontally arranged, the drive beam is vertically arranged, the axis of the drive wheel is located below the lifting beam, the transmission gear and the transmission shaft are located below the drive wheel, the connecting pipe is located below the transmission shaft, and the tie rod is located between the transmission shaft and the connecting pipe.

[0009] In the above-mentioned single-beam low-headroom four-drive wire rope hoist, the single beam is an I-beam, the lifting beam and the drive beam are square steel beams, and the connecting pipe is a round steel pipe.

[0010] In the above-mentioned single-beam low-headroom four-drive wire rope hoist, the drive shaft is a hexagonal drive shaft, and the drive shaft is rotatably connected to the drive beam through a sleeve set in the drive beam. The sleeve is provided with a rotating support component, such as a bearing.

[0011] In the above-mentioned single-beam low-headroom four-drive wire rope hoist, a drum assembly, a gearbox and a hoisting motor are provided on one side of the lifting beam, and an electrical box, a running motor and a counterweight are provided on the other side.

[0012] In the above-mentioned single-beam low-headroom four-drive wire rope hoist, a first mounting plate and a second mounting plate are respectively provided on the outer side of the drive beam. The drum assembly, gearbox and hoisting motor are fixed on the first mounting plate, and the electrical box, running motor and counterweight are fixed on the second mounting plate.

[0013] In the aforementioned single-beam low-headroom four-drive wire rope hoist, the rated lifting capacity is 25T, and the upper limit lifting height (the distance between the hook assembly and the single beam) is 900mm.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] 1. This utility model provides a single-beam low-headroom four-drive wire rope hoist. Drive mechanisms are set at both ends of the lifting beam. Each drive mechanism includes a running motor and two drive wheels. The two drive wheels are directly driven by a transmission shaft and gears, thus forming a four-drive structure with four drive wheels. The four-drive structure drives the wire rope hoist to move on the single beam, which can significantly improve the hoist's running stability and load-bearing capacity, and also make the hoisting operation more efficient and safer.

[0016] 2. This utility model, in conjunction with a four-wheel drive structure, redesigns the overall structure and layout of the hoist to accommodate the increased rated lifting capacity. Drive beams are installed at both ends of the lifting beam, with the hoist's traveling mechanism mounted on these beams. Mounting plates are also installed on the drive beams to secure the drum assembly, gearbox, lifting motor, electrical box, running motor, and counterweight, significantly reducing the direct force on the lifting beam and increasing its lifting capacity. Furthermore, the maximum lifting height of the wire rope hoist is reduced. The hoist's low headroom design allows it to operate in spaces with limited space, greatly expanding its application scenarios. These features make the 25T single-beam low headroom four-wheel drive wire rope hoist provided in this application highly competitive and valuable in the market. Attached Figure Description

[0017] Fig. 1 This is a perspective view of the present invention;

[0018] Fig. 2 This is a top view of the present invention;

[0019] Reference numerals in the attached drawings: 1. Hook assembly; 2. Lifting beam; 3. Drive beam; 4. Drive wheel; 5. Transmission gear; 6. Drive gear; 7. Drive shaft; 8. Running motor; 9. Connecting pipe; 10. Tie rod; 11. Sleeve; 12. Drum assembly; 13. Gearbox; 14. Lifting motor; 15. Electrical box; 16. Counterweight; 17. First mounting plate; 18. Second mounting plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figs. 1-2 :

[0021] A single-beam low-headroom four-drive wire rope hoist includes a pair of lifting beams 2 connected to a hook assembly 1. Both ends of the lifting beams 2 are provided with drive mechanisms. Each drive mechanism includes a pair of drive beams 3 fixed to the ends of the lifting beams 2. Drive wheels 4 that travel on the single beam are rotatably arranged on the inner side of each drive beam 3. A drive gear 6 that meshes with a transmission gear 5 is formed at the end of each drive wheel 4 near the drive beam 3. The transmission gear 5 is mounted on a transmission shaft 7 that is rotatably connected to the drive beam 3. The transmission shaft 7 is driven to rotate by a running motor 8 located on the outer side of the drive beam 3. The running motor 8 is a geared motor, and its output shaft is connected to the transmission shaft 7.

[0022] The working principle of this embodiment is as follows:

[0023] Lifting process: The lifting process in this embodiment is the same as that of other wire rope hoists in the field. The load to be lifted is hung on the hook of the hook assembly 1, and then the lifting motor 14 is started. The lifting motor 14 transmits power to the drum assembly 12 through the reduction gearbox 13. The drum rotates and the load moves up and down by winding the wire rope and the pulley of the hook assembly 1.

[0024] Operation process: When working, the operator presses the operation button, which simultaneously starts the two running motors 8. After deceleration, the motors output power through their output shafts, driving the transmission shaft 7 to rotate. When the transmission shaft 7 rotates, the two transmission gears 5 rotate accordingly. The two drive gears 6 meshing with the transmission gears 5 rotate, ultimately causing the two drive wheels 4 to rotate and move on the single beam. Each running motor 8 directly drives the two drive wheels 4. The two running motors 8 simultaneously drive the four drive wheels 4 to form a four-wheel drive structure. The four-wheel drive structure increases the hoist's operational stability and load-bearing capacity.

[0025] To enhance the structural strength and stability of the drive mechanism, two drive beams 3 of the same drive mechanism are connected as one unit by a connecting pipe 9, and a tie rod 10 is provided between the two drive beams 3 to tighten the drive beams 3.

[0026] Furthermore, in order to achieve low headroom lifting, the lifting beam 2 is set horizontally, the drive beam 3 is set vertically, the axis of the drive wheel 4 is located below the lifting beam 2, the transmission gear 5 and the transmission shaft 7 are located below the drive wheel 4, the connecting pipe 9 is located below the transmission shaft 7, and the tie rod 10 is located between the transmission shaft 7 and the connecting pipe 9. Through the above arrangement, the position of the drive wheel 4 can be lowered, thereby shortening the distance between the hook assembly 1 and the single beam (which is in the same position as the drive wheel 4).

[0027] In this embodiment, the single beam is an I-beam, the lifting beam 2 and the drive beam 3 are square steel beams, and the connecting pipe 9 is a round steel pipe.

[0028] To increase the stability of the transmission, the transmission shaft 7 is a hexagonal transmission shaft. The transmission shaft 7 is rotatably connected to the drive beam 3 through a bushing 11 set inside the drive beam 3. A rotatable support, such as a bearing, is provided inside the bushing 11.

[0029] This embodiment further optimizes the layout of each component. One side of the lifting beam 2 is provided with a drum assembly 12, a reduction gearbox 13 and a lifting motor 14, and the other side is provided with an electrical box 15, a running motor 8 and a counterweight 16. Specifically, the outer side of the drive beam 3 is provided with a first mounting plate 17 and a second mounting plate 18, respectively. The drum assembly 12, the reduction gearbox 13 and the lifting motor 14 are fixed on the first mounting plate 17, and the electrical box 15, the running motor 8 and the counterweight 16 are fixed on the second mounting plate 18.

[0030] In this embodiment, the rated lifting capacity of the single-beam low-headroom four-drive wire rope hoist is 25T, and the upper limit lifting height (the distance between the hook assembly 1 and the single beam) is 900mm.

[0031] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A single-beam low headroom four drive wire rope hoist, characterized in that, The crane beam (2) comprises a pair of connecting hook assemblies (1), both ends of the crane beam (2) are provided with driving mechanisms, the driving mechanisms comprise a pair of driving beams (3) fixed at the ends of the crane beam (2), the inner sides of the driving beams (3) are respectively provided with driving wheels (4) running on a single beam, the driving wheels (4) are formed with driving gears (6) meshing with transmission gears (5) at one end close to the driving beams (3), the transmission gears (5) are sleeved on transmission shafts (7) rotationally connected with the driving beams (3), the transmission shafts (7) are driven to rotate by running motors (8) arranged on the outer sides of the driving beams (3), the running motors (8) are reduction motors, and the output shafts of the running motors (8) are in transmission connection with the transmission shafts (7).

2. A single-rope low headroom four drive wire rope hoist according to claim 1, characterized in that, The two driving beams (3) of the same driving mechanism are connected into an integrated whole through a connecting pipe (9), and a pull rod (10) for tensioning the driving beams (3) is arranged between the two driving beams (3).

3. A single-rope low headroom four drive wire rope hoist according to claim 2, characterized in that, The crane beam (2) is horizontally arranged, the driving beams (3) are vertically arranged, the axes of the driving wheels (4) are located below the crane beam (2), the transmission gears (5) and the transmission shafts (7) are located below the driving wheels (4), the connecting pipe (9) is located below the transmission shafts (7), and the pull rod (10) is located between the transmission shafts (7) and the connecting pipe (9).

4. A single-rope low headroom four drive wire rope hoist according to claim 1, characterized in that, The transmission shafts (7) are hexagonal transmission shafts, and the transmission shafts (7) are rotationally connected with the driving beams (3) through bushings (11) arranged in the driving beams (3).

5. A single-rope low headroom four drive wire rope hoist according to claim 1, characterized in that, One side of the crane beam (2) is provided with a drum assembly (12), a speed reducer (13) and a lifting motor (14), and the other side is provided with an electrical box (15), a running motor (8) and a counterweight (16).

6. A single-rope low headroom four drive wire rope hoist according to claim 5, characterized in that, The outer sides of the driving beams (3) are respectively provided with first mounting plates (17) and second mounting plates (18), the drum assembly (12), the speed reducer (13) and the lifting motor (14) are fixed on the first mounting plates (17), and the electrical box (15), the running motor (8) and the counterweight (16) are fixed on the second mounting plates (18).

7. A single-rope low headroom four drive wire rope hoist according to claim 1, characterized in that, The rated lifting capacity of the single-beam low-clearance four-drive steel wire rope hoist is 25T, and the uppermost lifting limit height is 900mm.

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