CN219603118U

CN219603118U - Insulating crane

Info

Publication number: CN219603118U
Application number: CN202320388629.2U
Authority: CN
Inventors: 郑磊; 李培启; 谢长庆; 王月云; 许宜超; 张金帅
Original assignee: Xuzhou Handler Special Vehicle Co Ltd
Current assignee: Xuzhou Handler Special Vehicle Co Ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-08-29
Anticipated expiration: 2033-03-06

Abstract

The utility model discloses an insulating crane which comprises a walking chassis, an auxiliary frame, a slewing mechanism, a turntable, an arm support, a hoisting system and an amplitude-variable oil cylinder, wherein the auxiliary frame is arranged on the walking chassis; the arm support comprises a plurality of sections of telescopic arms, the telescopic arms at the outermost ends of the telescopic arms adopt insulating arms, lifting ropes are insulating ropes, and when live-line lifting operation is carried out, the insulating arms are provided with a section of effective insulating section, so that necessary safety clearance is provided, the safety of live-line operation is ensured, and important support is carried out for realizing uninterrupted operation.

Description

Insulating crane

Technical Field

The utility model relates to the technical field of engineering vehicles, in particular to an insulating crane.

Background

At present, with the development of economic construction in China, the urban rate is continuously improved, and overhead lines are continuously increased. Often, the operation is required under high voltage line, and the existing process is to connect the related power departments in advance before the operation, and then to cut off power in advance. But there are many reports of news that a common crane is adopted to work under a high-voltage line, a working arm touches the high-voltage line, and the fire is caused by the discharge, so that serious accidents of vehicle destruction and even human death are caused, and other related losses are caused after power failure. Because the existing cranes, especially large tonnage cranes, are all metal arm frames and have no insulativity, when the crane works under high-voltage lines without power failure, the lifting arm frames are easy to contact with the high-voltage lines, thereby causing discharge and ignition, causing serious electric shock accidents and loss of power failure caused by electric shock.

Disclosure of Invention

Aiming at the technical defects, the utility model aims to provide an insulating crane, wherein the forefront telescopic arm is an insulating arm when the telescopic arm works, a lifting rope is the insulating rope, and the insulating arm is provided with an effective insulating section when live-line lifting operation is carried out, so that necessary safety clearance is provided, the safety of live-line operation is ensured, and important support is carried out for realizing uninterrupted operation.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an insulating crane which comprises a walking chassis, an auxiliary frame, a slewing mechanism, a turntable, an arm support, a hoisting system and an amplitude-variable oil cylinder, wherein the auxiliary frame is arranged on the walking chassis; the rotary mechanism arranged on the auxiliary frame controls the rotary table to rotate; the winch of the winch system is fixed on the back plate of the turntable; one end of the arm support is hinged with the turntable, and the amplitude variation oil cylinder is used for controlling the arm support to do pitching motion; the arm support comprises a plurality of sections of telescopic arms, and the outermost section of the telescopic arm adopts an insulating arm with insulating property, so that an insulating gap is provided for live working of the arm support.

Preferably, the hoisting system comprises a hoist, an insulating rope, a lifting hook and a lifting hook; one end of the insulating rope is fixed and wound on the winch, and the other end of the insulating rope is connected with the lifting hook and is continued to the fixed pulley of the insulating arm at the outermost end through the idler wheel arranged on the arm support.

Preferably, when large tonnage lifting exceeding the rated lifting capacity of the winch is carried out, the lifting hook adopts a multi-time force lifting hook to carry out lifting, so that the stress requirements of the winch and the insulating rope are reduced, and the lifting capacity of the whole machine exceeding the capacities of the winch and the insulating rope is obtained.

Preferably, the insulating arm at the outermost end of the arm support is an insulating glass fiber reinforced plastic arm.

Preferably, when the insulating arm extends, the length distance of the effective insulating section of the insulating arm meets the requirements of national or industry standards on the insulating gap under the corresponding electrified voltage.

The utility model has the beneficial effects that: the outermost arm of the insulating crane is an insulating arm when the insulating crane works, the lifting rope is an insulating rope, and when live-line lifting operation is carried out, the insulating arm is provided with an effective insulating section, so that necessary safety clearance is provided, the safety of live-line operation is ensured, and important support is realized for uninterrupted operation. And simultaneously, the multi-force lifting hook is also provided, when the lifting weight exceeds the rated lifting weight of the winch, the lifting hook can be connected to the arm support by taking the insulating rope around the multi-force lifting hook, so that the lifting capacity exceeding the rated lifting weight of the winch is realized.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an insulation crane in a driving state according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of an insulation crane in a hoisting operation state according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an insulated crane according to an embodiment of the present utility model when the insulated crane is lifted by using multiple force lifting hooks.

Wherein, 1-walking chassis; 2-an auxiliary frame; 3-a slewing mechanism; 4-a turntable; 5-telescopic arm support; 6-a hoisting system; 7-an amplitude-variable oil cylinder; 5.1-one arm; 5.2-two-segment arm; 5.3-three-arm; 6.1-a winch; 6.2-insulating ropes; 6.3-lifting hook; 6.4-lifting hook.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 3, an insulating crane comprises a walking chassis 1, an auxiliary frame 2, a slewing mechanism 3, a turntable 4, an arm support 5, a hoisting system 6 and an amplitude-variable oil cylinder 7; the rotary mechanism 3 arranged on the auxiliary frame 2 controls the rotary table 4 to rotate; the winch 6.1 of the winch system 6 is fixed on the rear back plate of the turntable 4; one end of the arm support 5 is hinged with the turntable 4, and the amplitude variation oil cylinder 7 is used for controlling the arm support 5 to do pitching motion; the arm support 5 comprises a first arm 5.1, a second arm 5.2 and a third arm 5.3; the three-section arm 5.3 at the outermost end adopts an insulating arm with insulating property, and provides necessary insulating clearance for live working of the arm support 5.

The arm support 5 has a metal arm section 5.1 and a metal arm section 5.2, the metal arm section is of a tubular structure, the metal arm section 5.2 is sleeved inside the metal arm section 5.1, the metal arm section 5.3 is of an insulating arm with insulating property, the metal arm section is of a tubular structure, the metal arm section is sleeved inside the metal arm section 5.2, and an effective insulating section L is arranged near a lifting end, as shown in fig. 2, and a necessary insulating safety gap is provided during live working.

The hoisting system 6 comprises a hoist 6.1, an insulating rope 6.2, a lifting hook 6.3 and a lifting hook 6.4; one end of the insulating rope 6.2 is fixed and wound on the winch 6.1, and the other end of the insulating rope 6.2 is connected with the lifting hook 6.3 and is continued to the fixed pulley of the outermost insulating arm through the roller arranged on the arm support 5.

When live-line hoisting operation is performed, as shown in fig. 2, the effective insulation section L of the three-section arm 5.3 included in the arm support 5 extends out of the two-section arm 5.2, and at this time, the requirement of national or industry standard on insulation clearance under corresponding live-line voltage can be met, so that the safety of live-line hoisting operation is ensured.

When the hoisting is carried out by exceeding the rated hoisting capacity of the winch, the hoisting hook 6.4 adopts a multi-force hoisting hook to carry out the hoisting, as shown in fig. 3, the lifting hook 6.3 is hung on the arm support 5 with the insulating rope 6.2 bypassing the pulley block in the multi-force hoisting hook 6.4, and the scheme of carrying out the hoisting by adopting the multi-force hoisting hook is adopted, so that the stress requirements of the winch 6.1 and the insulating rope 6.2 are reduced, and the hoisting capacity of the whole machine exceeding the rated hoisting capacity of the winch and the insulating rope is obtained.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An insulating crane comprises a walking chassis (1), an auxiliary frame (2), a slewing mechanism (3), a turntable (4), an arm support (5), a hoisting system (6) and an amplitude-variable oil cylinder (7); the rotary mechanism (3) arranged on the auxiliary frame (2) controls the rotary table (4) to rotate; a winch (6.1) of the winch system (6) is fixed on a rear back plate of the turntable (4); one end of the arm support (5) is hinged with the turntable (4), and the amplitude-variable oil cylinder (7) is used for controlling the arm support (5) to do pitching motion; the arm support (5) comprises a plurality of sections of telescopic arms, and the telescopic arm at the outermost end of the arm support adopts an insulating arm with insulating performance, so that an insulating gap is provided for live working of the arm support (5).

2. An insulating crane as claimed in claim 1, characterized in that: the hoisting system (6) comprises a hoisting machine (6.1), an insulating rope (6.2), a lifting hook (6.3) and a lifting hook (6.4); one end of the insulating rope (6.2) is fixed and wound on the winch (6.1), and the other end of the insulating rope (6.2) is connected with the lifting hook (6.3) and is continued to the fixed pulley of the insulating arm at the outermost end through the roller arranged on the arm support (5).

3. An insulating crane as claimed in claim 2, characterized in that: when large tonnage lifting exceeding the rated lifting capacity of the winch is carried out, the lifting hook (6.4) adopts a multi-time force lifting hook to carry out lifting, so that the stress requirements of the winch (6.1) and the insulating rope (6.2) are reduced, and the lifting capacity of the whole machine exceeding the capacities of the winch and the insulating rope is obtained.

4. An insulating crane as claimed in claim 1, characterized in that: the insulating arm at the outermost end of the arm support (5) adopts an insulating glass fiber reinforced plastic arm.

5. An insulating crane as claimed in claim 1, characterized in that: when the insulating arm stretches out, the length distance of the effective insulating section arranged on the insulating arm meets the requirements of national or industry standards on the insulating gap under the corresponding electrified voltage.