Movable rotary arm type maintenance lifting device

Abstract

The utility model provides a movable swing arm type maintenance hoisting device which comprises a supporting frame, a cantilever type hoisting mechanism is installed on the top of the supporting frame through a swing mechanism, the cantilever type hoisting mechanism is connected with a hoisting tool, the swing mechanism is used for driving the cantilever type hoisting mechanism to rotate, and strip supporting legs are arranged at the bottom of the supporting frame. The bottom of each supporting leg is provided with a moving wheel and an adjusting foot margin. The movable wheels are installed at the bottom of the bearing frame, so that the movable heavy object placing device has mobility, in the working process, the cantilever type hoisting mechanism hoists a heavy object with the edge located at the low position, then the heavy object is driven by the rotating mechanism to rotate, then the device is pushed to place the heavy object to the designated position, and a large amount of physical labor brought by personnel carrying is avoided; when the device is used, drilling is not needed for installation of fixing bolts, and damage to the ground and the wall on site is avoided.

Description

Technical Field

[0001] This utility model relates to the field of maintenance equipment technology, and in particular to a movable slewing arm maintenance hoist device. Background Technology

[0002] During maintenance, we often encounter situations involving suspended lifting work near edges. This is typically done using cranes or by erecting temporary, fixed cantilever cranes at the edges, from which personnel then move the equipment to its designated parking position. These methods are costly in terms of both resources and manpower. Furthermore, fixed cantilever cranes require drilling holes for bolts, which can damage the ground and walls at the work site. Utility Model Content

[0003] To solve the above-mentioned technical problems, this application provides a movable slewing arm maintenance hoist, which is flexible in use, requires no drilling for fixing bolts, and will not cause damage to the ground or walls on site. To achieve the above-mentioned technical features, the purpose of this utility model is as follows:

[0004] A movable slewing boom maintenance hoist includes a support frame, on the top of which a cantilever lifting mechanism is mounted via a slewing mechanism. The cantilever lifting mechanism is connected to a lifting device, and the slewing mechanism is used to drive the cantilever lifting mechanism to rotate. The bottom of the support frame is equipped with casters and adjustable feet.

[0005] The slewing mechanism includes a slewing bearing, the inner ring of which is fixedly connected to the support frame, the outer ring of which is connected to the motor output shaft through a gear mechanism, and the outer ring of which is detachably connected to the cantilever crane mechanism.

[0006] The gear mechanism is a worm gear mechanism.

[0007] The cantilever crane mechanism includes a mounting platform connected to the outer ring of the slewing bearing. The mounting platform is provided with a cantilever and a winch. The hoisting cable of the winch is wound around a pulley on the cantilever and then connected to the lifting device.

[0008] The sling is a steel wire rope.

[0009] It also includes a counterweight assembly, which is detachably connected to the mounting platform and located on the side opposite to the lifting device.

[0010] The counterweight assembly includes multiple counterweight blocks and a storage rack for placing the counterweight blocks; the storage rack is provided with a connecting plate, which is connected to fasteners on the mounting platform.

[0011] The lifting device is one of the following: shackle, eyelet, ring, pear-shaped ring, S-hook, nose hook, American hook, ram's horn hook, eyelet hook, eyelet screw with safety catch, or pin.

[0012] The present invention has the following beneficial effects:

[0013] 1. By installing casters at the bottom of the support frame, it becomes mobile. During operation, the cantilever crane lifts the heavy object that is at a low position on the edge, and then rotates it under the drive of the slewing mechanism, and then pushes the device of this application to place the heavy object in the designated position, thus avoiding a lot of physical labor caused by personnel handling.

[0014] 2. This application features high integration and a simple structure, enabling rapid assembly, convenient transportation, small footprint, and high safety and reliability;

[0015] 3. The device in this application is flexible in use, does not require drilling to install fixing bolts, and will not cause damage to the ground and walls on site. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 An external view of a movable slewing arm maintenance hoist provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the installation structure of the rotary mechanism provided in an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the cantilever crane mechanism provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the counterweight component provided in an embodiment of the present utility model;

[0021] In the diagram: 1. Support frame, 1a. Support leg, 2. Slewing bearing, 2a. Inner ring, 2b. Outer ring, 3. Cantilever crane mechanism, 3a. Mounting platform, 3b. Winch, 3c. Sling, 3d. Pulley, 3e. Fastener, 3f. Lifting device, 4. Moving wheel, 5. Adjustable foot, 6. Gear mechanism, 7. Worm gear, 7a. Turbine section, 7b. Mounting base, 7c. Motor, 8. Counterweight assembly, 9. Counterweight block, 9a. Storage rack, 9b. Connecting plate, 9c. Controller, 10. Detailed Implementation

[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] To achieve the above-mentioned technical features, the purpose of this utility model is as follows:

[0024] See appendix Figure 1-4 A movable jib-type maintenance hoisting device includes a support frame 1. A cantilever lifting mechanism 3 is mounted on the top of the support frame 1 via a slewing mechanism. The cantilever lifting mechanism 3 is connected to a lifting device 4. The slewing mechanism drives the cantilever lifting mechanism 3 to rotate. The bottom of the support frame 1 has four support legs 1a, each with a caster wheel 5 and an adjustable foot 6. By installing caster wheels at the bottom of the support frame 1, it gains mobility. During operation, the cantilever lifting mechanism 3 lifts heavy objects located at low points, then rotates under the drive of the slewing mechanism, pushing the device to place the heavy objects in the designated position. This avoids the large amount of physical labor required for manual handling. The device does not require drilling for fixing bolts and will not damage the ground or walls on site.

[0025] Furthermore, the slewing mechanism includes a slewing bearing 2, the inner ring 2a of which is fixedly connected to the support frame 1, and the outer ring 2b of which is connected to the output shaft of a motor 8 via a gear mechanism 7. The motor 8 is mounted on the support frame 1, and the outer ring 2b of the slewing bearing 2 is detachably connected to the cantilever crane mechanism 3. The motor 8 drives the gear mechanism 7, thereby driving the outer ring 2b of the slewing bearing 2 and the cantilever crane mechanism 3 to rotate.

[0026] Further, see Figure 2 The gear mechanism 7 is a worm gear mechanism, and the motor 8 is a right-angle output shaft reduction motor. The worm 7a connected to the output shaft of the motor 8 is movably mounted on the support frame 1 through the mounting seat 7c. During operation, the motor 8 drives the worm 7a to rotate, which in turn drives the turbine part 7b on the outer ring 2b of the slewing bearing 2 to rotate, ultimately realizing the rotation drive of the outer ring 2b of the slewing bearing 2.

[0027] Further, see Figure 3 The cantilever crane mechanism 3 includes a mounting platform 3a connected to the outer ring 2b of the slewing bearing 2. The mounting platform 3a is provided with a cantilever 3b and a winch 3c. The sling 3d of the winch 3c is wound around the pulley 3e on the cantilever and then connected to the lifting device 4. The lifting of objects can be achieved through the cooperation of the winch 3c and the lifting device 4.

[0028] The sling 3d is a steel wire rope.

[0029] Furthermore, in order to improve the stability and safety of this application when lifting heavy objects, this application also includes a counterweight component 9, which is detachably connected to the mounting platform 3a and located on the side opposite to the lifting device 4.

[0030] Furthermore, the counterweight assembly 9 includes multiple counterweight blocks 9a and a storage rack 9b for placing the counterweight blocks; the storage rack is provided with a connecting plate 9c, which is connected to a fastener 3f on the mounting platform 3a, allowing counterweight blocks of different weights to be placed according to different load capacities to ensure safety during use.

[0031] The lifting device 4 is one of the following: shackle, eyelet, ring, pear-shaped ring, S-hook, nose hook, American hook, ram's horn hook, eyelet hook, eyelet screw with safety catch, and pin.

Claims

1. A movable slewing boom type maintenance hoist, characterized in that: The system includes a support frame, on the top of which a cantilever crane mechanism is mounted via a slewing mechanism. The cantilever crane mechanism is connected to a lifting device. The slewing mechanism is used to drive the cantilever crane mechanism to rotate. The bottom of the support frame is equipped with casters and adjustable feet.

2. A mobile jib-type service hoist as defined in claim 1, wherein: The slewing mechanism includes a slewing bearing, the inner ring of which is fixedly connected to the support frame, the outer ring of which is connected to the motor output shaft through a gear mechanism, and the outer ring of which is detachably connected to the cantilever crane mechanism.

3. A mobile jib-type service hoist as defined in claim 2 wherein: The gear mechanism is a worm gear mechanism.

4. A mobile jib-type service hoist as defined in claim 3 wherein: The cantilever crane mechanism includes a mounting platform connected to the outer ring of the slewing bearing. The mounting platform is provided with a cantilever and a winch. The hoisting cable of the winch is wound around a pulley on the cantilever and then connected to the lifting device.

5. A mobile jib-type service hoist as defined in claim 4 wherein: The sling is a steel wire rope.

6. A mobile jib-type service hoist as defined in claim 5 wherein: It also includes a counterweight assembly, which is detachably connected to the mounting platform and located on the side opposite to the lifting device.

7. A mobile jib-type service hoist as defined in claim 6 wherein: The counterweight assembly includes multiple counterweight blocks and a storage rack for placing the counterweight blocks; the storage rack is provided with a connecting plate, which is connected to fasteners on the mounting platform.

8. A mobile jib-type service hoist as defined in claim 7, wherein: The lifting device is one of the following: shackle, eyelet, ring, pear-shaped ring, S-hook, nose hook, American hook, ram's horn hook, eyelet hook, eyelet screw with safety catch, or pin.

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