CN219297014U

CN219297014U - Small crane

Info

Publication number: CN219297014U
Application number: CN202320065794.4U
Authority: CN
Inventors: 邓卫平
Original assignee: Guiyang Zi Long Jun Food Co ltd
Current assignee: Guiyang Zi Long Jun Food Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-07-04
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to a small-sized hoisting machine, which comprises a tower, a suspension arm, a steel wire rope, a lifting hook and an electric hoisting mechanism; the tower is divided into an upper tower and a lower tower which are connected through a revolving shaft of a revolving mechanism, one end of a cross beam supporting plate of the upper tower supports a suspension arm, and the other end is provided with an electric hoisting mechanism and an operating handrail; the bottom of the lower tower is provided with a universal travelling wheel. The utility model is suitable for small places of small food processing enterprises and has the characteristics of simple structure, low cost, convenient movement, sanitation, safety and reliability.

Description

Small crane

Technical Field

The utility model relates to a small-sized hoisting machine, in particular to a carrying machine which is operated by simple manpower and is suitable for small-sized food processing enterprises.

Background

The known hoisting cranes comprise a crane with automobile power and a fixed tower crane with motor power, and the cranes have large volume, complex structure and high cost, and are not used in a plurality of indoor places with narrow places and limited height space, so that the conventional small-sized food processing enterprises can carry food materials of tens to two hundred kilograms by manually lifting or carrying by shoulder, and the devices have low efficiency and extremely unsanitary contact of human hands with the food materials.

Disclosure of Invention

The utility model aims to provide a small hoisting machine which is suitable for small places of small food processing enterprises, has a simple structure, is low in cost, convenient to move, sanitary, safe and reliable.

The utility model is realized in the following way: a small-sized hoisting machine comprises a tower, a suspension arm, a steel wire rope, a lifting hook and an electric hoisting mechanism; the method is characterized in that: the upper tower is connected with the lower tower through a rotating shaft of a rotating mechanism, so that the upper tower can rotate by 0-360 degrees relative to the lower tower; the rotary mechanism is driven by manpower;

the top end of the upper tower is provided with a cross beam supporting plate, one end of the cross beam supporting plate supports the suspension arm, and the other end of the cross beam supporting plate is provided with an electric hoisting mechanism and a control handrail;

the bottom of the lower tower is provided with a universal travelling wheel, so that the whole hoisting machine can move at will on the ground under the drive of manpower;

the electric hoisting mechanism consists of a direct current motor, a gearbox and a winding wheel; the direct current motor is connected with the winding wheel through a gearbox; the winding wheel is provided with a brake caliper brake, a steel wire rope is wound on a wheel disc of the winding wheel and connected to a pulley of the suspension arm and the lifting hook;

the power supply of the direct current motor is realized by adopting a storage battery, and the storage battery is also arranged on the beam supporting plate to be used as a balancing boom weight block.

The working process of the small hoisting machine is as follows: the whole small-sized hoisting machine is pulled to a working site by manually pushing the control handrail, the universal travelling wheel is utilized to adjust the rotation mechanism between the upper tower frame and the lower tower frame, the pulley and the lifting hook of the lifting arm are aligned with food raw materials to be carried, and a suspended food raw material is hung, so that the steel wire rope can be driven to loosen or tighten by operating the winding wheel of the direct-current motor, and the lifting hook can ascend or descend to carry out hoisting operation. After the food raw materials to be conveyed rise to a certain height, a brake caliper on the winding wheel is controlled to brake and lock the food raw material suspended matters; then pushing the control handrail to make the whole small-sized hoisting machine reach a preset working place, then adjusting a slewing mechanism between the upper tower and the lower tower to align with the unloading position, loosening a brake caliper, and slowly falling down the suspended object to finish the operation.

Compared with the prior art, the utility model has the advantages that:

1. the upper tower slewing mechanism of the small hoisting machinery is not driven by electricity, is manually controlled, can directly perform 0-360 DEG slewing, simplifies the parts such as a motor, a speed reducer, a large gear ring and the like of the slewing mechanism, which are difficult to process and have high assembly precision, and reduces the manufacturing cost; the slewing mechanism is borne by manpower and meets the requirements of hoisting operations in different directions;

2. the utility model uses the accumulator as power supply, and does not need to specially lay distribution lines, thereby reducing the cost; the device is particularly suitable for operation in places with inconvenient power supply; in the utility model, the storage battery not only supplies power, but also plays a role of a weight block for balancing the suspension arm;

3. the small hoisting machinery is provided with the travelling wheels, and is flexible and convenient to move and walk due to manual traction, so that the small hoisting machinery is particularly suitable for rapid movement in a narrow construction site;

4. the utility model has simple structure, no contact between hands and food raw materials, clean and sanitary, and is suitable for small places of small food processing enterprises.

Drawings

The following describes the structure of the present utility model with reference to the drawings:

FIG. 1 is a block diagram of a small-sized hoisting machine;

the figure shows that: the small-sized hoisting machinery comprises a 1 boom; 2, a steel wire rope; 3, lifting hooks; 4, an electric hoisting mechanism; 5, loading a tower frame; 6, lower tower frame; 7, a rotation mechanism; 8, a beam supporting plate; 9, manipulating a handrail; 10 universal travelling wheels; a direct current motor 11; a 12-speed gearbox; 13 winding wheels; 14 brake caliper brake; 15 storage battery.

Detailed Description

In order that those skilled in the art can better understand the technical scheme of the present utility model, the technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

Examples:

as shown in fig. 1-a small hoisting machine comprises a tower, a boom 1, a wire rope 2, a hook 3 and an electric hoisting mechanism 4; the tower is divided into an upper tower 5 and a lower tower 6, and the upper tower 5 and the lower tower 6 are connected through a rotating shaft of a rotating mechanism 7, so that the upper tower 5 can rotate by 0-360 degrees relative to the lower tower 6; the rotary mechanism 7 is driven by manpower;

the top end of the upper tower 5 is provided with a cross beam supporting plate 8, one end of the cross beam supporting plate 8 supports the suspension arm 1, and the other end of the cross beam supporting plate 8 is provided with an electric hoisting mechanism 4 and a control handrail 9;

the suspension arm 1 is 2.8 m long, the beam supporting plate 8 is 1.5 m long, and the angle alpha between the suspension arm 1 and the beam supporting plate 8 is 145-150 degrees;

the bottom of the lower tower 6 is provided with a universal travelling wheel 10, so that the whole hoisting machine can move on the ground at will under the drive of manpower;

the electric hoisting mechanism 4 consists of a 36V 750W direct current brushless motor 11, a gearbox 12 and a winding wheel 13; the brushless DC motor 11 is connected with a winding wheel 13 through a gearbox 12; the winding wheel 13 is provided with a brake caliper 14, a wire rope 2 is wound on a wheel disc of the winding wheel 13 and is connected to a pulley of the suspension arm 1 and the lifting hook 3;

the power supply of the brushless DC motor 11 is realized by adopting three sections of 12V155AH valve-controlled sealed storage batteries 15, each of which has 40Kg of weight, and the storage batteries 15 are also arranged on the beam supporting plate 8 to be used as weight blocks for balancing the suspension arm 1.

The maximum lifting weight of the design of this example is 250 kg.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. A small crane comprises a tower, a suspension arm (1), a steel wire rope (2), a lifting hook (3) and an electric hoisting mechanism (4); the method is characterized in that: the tower frame is divided into an upper tower frame (5) and a lower tower frame (6), and the upper tower frame (5) and the lower tower frame (6) are connected through a rotating shaft of a rotating mechanism (7) so that the upper tower frame (5) can rotate by 0-360 degrees relative to the lower tower frame (6); the rotary mechanism (7) is driven by manpower;

the top end of the upper tower (5) is provided with a beam supporting plate (8), one end of the beam supporting plate (8) supports the suspension arm (1), and the other end of the beam supporting plate (8) is provided with an electric hoisting mechanism (4) and a control handrail (9);

the bottom of the lower tower (6) is provided with a universal travelling wheel (10), so that the whole hoisting machinery can move on the ground at will under the drive of manpower;

the electric hoisting mechanism (4) consists of a direct current motor (11), a gearbox (12) and a winding wheel (13); the direct current motor (11) is connected with the winding wheel (13) through the gearbox (12); the winding wheel (13) is provided with a brake caliper brake (14), a wire rope (2) is wound on a wheel disc of the winding wheel (13) and is connected to a pulley of the suspension arm (1) and the lifting hook (3);

the power supply of the direct current motor (11) is realized by adopting a storage battery (15), and the storage battery (15) is also arranged on the beam supporting plate (8) to be used as a weight block for balancing the suspension arm (1).