KR20140032234A

KR20140032234A - A overhead travelling crane system

Info

Publication number: KR20140032234A
Application number: KR1020120098892A
Authority: KR
Inventors: 이종춘
Original assignee: (주)호이스트앤크레인
Priority date: 2012-09-06
Filing date: 2012-09-06
Publication date: 2014-03-14

Abstract

The present invention relates to a travelling crane device, and more specifically, to a travelling crane device which enables the stable driving of a trolley frame by delivering uniform power to the wheels of the trolley frame and prevents safety accidents by controlling the rotation of a cable drum by a limit switch. The travelling crane device according to one embodiment of the present invention comprises a first trolley frame (10A), a second trolley frame (10B), a driving unit (20), and a control unit (40).

Description

Traveling crane system {a overhead traveling crane system}

The present invention relates to a traveling crane device, and more particularly, an even drive is transmitted to the wheels of the trolley frame moving along both rails, so that the trolley frame is stably moved, and the rotation of the cable drum is controlled by a limit switch. The present invention relates to a traveling crane device capable of preventing safety accidents such as falling and collision of heavy materials.

In general, a crane is a mechanical device that aims to haul heavy materials by moving power up and down and to the left and right, and to move materials, products, or other heavy materials three-dimensionally in factories, ports, warehouses, etc. Used for

In the traveling crane, the trolley is installed on both rails mounted on the "H" beam, and the cable is pulled up and moved by the rotation of the cable drum mounted on the trolley. It consists of a system.

However, in the related art, since the wheels mounted on the trolley are simply placed on the travel rails and are not moved, the equal force is not transmitted to both wheels, so that stable driving is difficult and the rotational force of the driving motor cannot be accurately transmitted to both wheels.

In particular, when the crane suspended the weight, the cable is wound on the drum to perform a function, but if the cable is unwound or unwound by the drum accidentally, a load may collide with the crane or cause a safety accident in which the weight falls.

Of course, in some cases, an electronic sensor device is installed to detect the position of a heavy object or a detection system for controlling the rotation of a cable drum may be installed. Disasters, such as causing serious disasters, have occurred.

The present invention has been made in view of the above-mentioned problems, and its object is to accurately control the rotation of the cable drum by a simple structure switch device to prevent disasters such as collision or drop due to load, and to prevent trolley frame The equal drive is transmitted to the wheels of the to provide a traveling crane device that is stable running.

Features of the present invention for achieving the above object, the trolley (Trolley) is installed on both rails (1) mounted on the beam (beam) is moved, the cable by the rotation of the cable drum 31 mounted on the trolley In the traveling crane of the system which pulls up and moves the weight body, the first and second wheels 11a and 12a are mounted on the first and second support plates 11 and 12 installed on the one rail 1. First and second wheels 11a and 12a are mounted on both sides of the lower guide 1a of the rail 1 to move; A second trolley frame (10B) mounted on the other rail (1) and having the same configuration as the first trolley frame (10A); The axle 21 passing through the first and second support plates 11 and 12 of the first and second trolley frames 10A and 10B is rotated by the power of the driving motor 22, and the axle 21 is rotated. The pinions 21a mounted on both sides of the first wheel 11a are coupled to the gear 11b integrally mounted to the first wheel 11a to rotate the first wheels 11a of the first and second trolley frames 10A and 10B together. A driving unit 20 to make; A drum in which a cable 32 is wound inside the case 30a coupled to the first and second support plates 11 and 12 of the first and second trolley frames 10A and 10B and the bracket 50. A hoist (30) mounted and rotated by the power of the reduction motor (33); It can be achieved by a traveling crane device, characterized in that consisting of a control unit 40 for sensing and controlling the rotation of the drum 31 of the hoist 30.

As described above, in the present invention, the first wheels 11a mounted on the first and second trolley frames 10A and 10B, respectively, are rotated together by the power of the axle 21 and the second wheels 12a. The first and second trolley frames 10A and 10B are stably moved on the rails 1 so that the first and second support plates 11 and 12 are moved in a balanced state in the idle roller state. Lifting and moving work is efficient and very stable at the same time, the first, second, third operating piece (43a) is rotated in the control unit 40 when the weight suspended on the cable 32 is raised above a certain height, or lower than necessary 43b, 43c are in contact with the first, second, and third switches 44a, 44b, 44c, respectively, and stop the rotation of the reduction motor 33 in response to the signals of the switches. Safe work can be performed by preventing serious disasters such as collisions or falls caused by accidents. This is a reliable place to move at equal power, while good efficiency of operation has advantages, such as to provide a traveling crane device, competitiveness and quality can be produced at low cost.

1 is a perspective view illustrating an embodiment of the present invention,
2 is a perspective view enlarging a part of the present invention,
3 is a front view illustrating an embodiment of the present invention;
4 is an enlarged front view of a part of the present invention;
5 is a perspective view illustrating a hoist according to the present invention;
6 is a perspective view illustrating a control unit according to the present invention;
7 is a cross-sectional view of a control unit according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 5, two rails 1 are mounted on an “H” beam (not shown), and two rails 1 are provided with a trolley as a trolley. do.

The trolley has a configuration in which the cable drum 31 is mounted and rotated to pull and lift or lower the weight caught on the hook 32a while the cable 32 is wound or released.

Of course, the traveling crane of the above-mentioned configuration is a known technical idea already known. However, the most important technical idea in the present invention is that an equal power is transmitted to both wheels by the axle 21, so that the rotation of the cable drum 31 can be accurately controlled.

That is, the first support plate 11 and the second support plate 12 are oppositely mounted on both sides of one rail 1 of the two rails 1, and the first and second support plates 11 and 12 are mounted on both sides. First and second wheels 11a and 12a are mounted respectively.

The first and second wheels 11a and 12a are placed on both sides of the guide 1a formed at the lower portion of the “I” -type rail 1 and moved in a suspended state. The above configuration is the first trolley frame 10A moving along the rail 1.

The other rail 1 of the two rails 1 is mounted with a second trolley frame 10B having the same configuration as the first trolley frame 10A.

The first and second trolley frames 10A and 10B serve as moving carts for moving the weight body while reciprocating along the rails 1.

The first and second support plates 11 and 12 of the first and second trolley frames 10A and 10B are mounted through the axles 21, and the axles 21 are decelerated of the driving motor 22. Coupling with the gears 22a is rotated in response to the reduced rotation.

Pinions 21a are respectively mounted on both sides of the axle 21, and the pinions 21a are coupled to a gear 11b integrally mounted to the first wheel 11a, and the first and second trolley frames ( The first wheels 11a respectively mounted on the 10A) 10B are rotated together by the power of the axle 21.

At this time, the second wheels 12a of the first and second trolley frames 10A and 10B are rotated while being placed in the lower guide 1a of the rail 1 and moving in an idle roller state. The first and second support plates 11 and 12 are balanced with the 11a to move in a suspended state on the rail 1.

The above-described configuration serves as a drive unit 20 to power the wheels.

The hoist 30 is coupled to the first and second trolley frames 10A and 10B, and the first and second support plates 11 and 12 and the case 30a of the hoist 30 are brackets 50. Are combined.

Inside the case 30a of the hoist 30 is mounted a drum 31 wound around the cable 32, the drum 31 is rotated by the power of the reduction motor 33.

The drum 31 of the hoist 30 is rotated by the reduction motor 33, the rotation of the drum is controlled by the control unit 40 composed of a switching device.

6 to 7, the second gear 42 is coupled to the first gear 41 coupled to the rotating shaft 31a of the drum 31 as reduction gears, as shown in FIGS. The first, second and third operating pieces 43a, 43b and 43c coupled to and rotated by the rotation shaft 42a of the second gear 42 are the first, second and third switches 44a, 44b and 44c. Are in contact with each other to control the rotation of the reduction motor 33 in response to the signals of the switches.

According to the present invention having the above-described configuration, the first wheels 11a respectively mounted on the first and second trolley frames 10A and 10B are rotated together by the power of the axle 21, and the second wheels 12a are Since the first and second support plates 11 and 12 are moved in balance with the idle rollers, the first and second trolley frames 10A and 10B are stably moved on the rails 1 to tow heavy objects. There is an advantage such that the moving work is efficient and very stable.

In particular, the trolley (Trolley) is a mobile trolley is composed of the first and second trolley frame (10A) (10B) and the axle (21) to make a very simple configuration, while the production cost is low, the first and second wheel (11a) (12a) is a stable movement is achieved by receiving an equal power in the suspended state in the rail (1), the work efficiency is good, can be manufactured at a low cost to provide a traveling crane with excellent external competitiveness.

In addition, the first, second, third operation piece 43a rotated by the second gear 42 of the control unit 40 when the heavy object suspended from the hook 32a of the cable 32 rises above a certain height or falls below a required level. 43b, 43c are in contact with the first, second, and third switches 44a, 44b, 44c, respectively, so that the rotation of the reduction motor 33 can be stopped by the signals of the switches. Safe work can be performed by preventing serious accidents such as collisions or falls caused by heavy loads.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be resorted to without departing from the scope of the appended claims.

1: Rail 1a: Guide
10A: first trolley frame 11: first support plate
11a: first wheel 11b: gear
12: second support plate 12a: second wheel
10B: second trolley frame 20: drive unit
21: Axle 21a: Pinion
22: drive motor 22a: reduction gear
30: Hoist 30a: Case
31: drum 31a: rotating shaft
32: cable 32a: hook
33: reduction motor 40: control unit
41: first gear 42: second gear
42a: rotating shaft 43a: first operation piece
43b: 2nd operation piece 43c: 3rd operation piece
44a: first switch 44b: second switch
44c: third switch 50: bracket

Claims

Traveling of a system in which a trolley is installed and moved on both rails 1 mounted on a beam, and a cable pulls and lifts a weight by a rotation of a cable drum 31 mounted on the trolley. In the ring crane,
First and second wheels 11a and 12a are mounted on the first and second support plates 11 and 12 installed on the one rail 1, and the first and second wheels 11a and 12a are rails 1. A first trolley frame (10A) placed on both sides of the lower guide (1a) and moved;
A second trolley frame (10B) mounted on the other rail (1) and having the same configuration as the first trolley frame (10A);
The axle 21 passing through the first and second support plates 11 and 12 of the first and second trolley frames 10A and 10B is rotated by the power of the driving motor 22, and the axle 21 is rotated. The pinions 21a mounted on both sides of the first wheel 11a are coupled to the gear 11b integrally mounted to the first wheel 11a to rotate the first wheels 11a of the first and second trolley frames 10A and 10B together. A driving unit 20 to make;
A drum in which a cable 32 is wound inside the case 30a coupled to the first and second support plates 11 and 12 of the first and second trolley frames 10A and 10B and the bracket 50. A hoist (30) mounted and rotated by the power of the reduction motor (33);
Traveling crane device, characterized in that consisting of a control unit 40 for detecting and controlling the rotation of the drum (31) of the hoist (30).

The method of claim 1,
The controller 40 has a second gear 42 coupled to the first gear 41 coupled to the rotation shaft 31a of the drum 31 as reduction gears, and the rotation shaft 42a of the second gear 42. The first, second, and third operating pieces 43a, 43b, 43c coupled to and rotated in contact with the first, second, and third switches 44a, 44b, 44c respectively decelerate by signals of the switches. Traveling crane device, characterized in that configured to control the rotation of the motor (33).