RU2791750C1 - Loader cranes with cable drive - Google Patents

Abstract

FIELD: hoisting and transport engineering.

SUBSTANCE: loader cranes with cable drive. The loader crane with cable drives consists of an automated control system, bridge (1) with rangefinders, handling winches (2) and additional handling winches (3). The bridge is made of the main - upper (4), and additional side frames (5), equipped with traverse (6), cargo trolley (7) with swivel grip (8). The bridge is equipped with additional trolleys - two large trolleys (9), each with two wheels, and two small (10) trolleys, each with one wheel. Two handling winches (2) are mounted on one of large trolleys (9), and it is also equipped with four additional handling winches (3), two of which are mounted on small trolleys (10). The main upper frame (4) is made in the form of a central beam and is supported by two large trolleys (9), to one of which, by means of beams (11), small trolleys (10) are attached. The working ends of the cables of all handling winches (2) and (3) are fixed on a cargo trolley (7) with a swivel grip (8).

EFFECT: increase of technical and operational efficiency of loader cranes with cable drives is achieved by uniform distribution of the handling load.

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Description

The invention relates to hoisting and transport engineering, in particular to crane-manipulators with a cable drive, used for work requiring the manipulation of cargo (general purpose). Cranes manipulators with cable (rope) drives are widely used in solving various applied problems. In particular, during construction work, during loading / unloading operations in ports, when working at energy facilities, in mechanical engineering, etc.

Known tower crane for the mechanization of construction production, which increases the productivity of construction work by continuously supplying goods to the installation area (USSR Author's certificate 1414760 "Tower crane", IPC 4 V66S 23/26,1988).

The disadvantages of this solution are the limited working area, the dependence of the crane capacity on the outreach of the boom and the ability to change the position of the load only in two coordinates.

Also known is a crane with an automated control system, mainly for moving containers with radioactive waste, containing a movable bridge with rangefinders, a cargo trolley mounted on it with the possibility of moving, carrying a hoisting mechanism oriented with a drive, connected by means of a block suspension with a controlled grip , equipped with a device for fixing its spatial position, while the vertical racks of the frame-shaped traverse are made with the possibility of limited movement relative to the support frame of the controlled grip body, and are connected by lugs to the crane suspension brackets (RF Patent 111532, IPC V66S 17/00, publ. .

The disadvantage of this crane is the low efficiency of pulley systems for manipulating the grip due to the impossibility of spatial maneuvering of the load and the effect of vertical pressure on it. In this design, only lifting up is possible.

The problem to be solved by the present invention is the elimination of this drawback and the expansion of technical and technological capabilities.

The technical result achieved is to increase the technical and operational efficiency of cable-driven loader cranes by evenly distributing the manipulation load, eliminating the dependence of the crane load capacity on the boom reach and increasing the handling characteristics by ensuring the movement of the crane gripper along 6 coordinates.

The specified technical result is achieved by the fact that the crane-manipulator, with an automated control system, including a bridge with rangefinders, manipulation winches, the working end of the cables of which is fixed on a cargo trolley mounted on a bridge with the possibility of movement, a hoisting mechanism mounted on a cargo trolley connected to a controlled a rotary gripper with a device for fixing its spatial position, characterized in that it is equipped with vertical guide rods with drive winches, the bridge is made of the main - upper, and additional side frames, equipped with a traverse mounted for movement, and a cargo trolley pivotally mounted on the traverse with swivel grip, also installed with the ability to move, and additional trolleys - two large trolleys, each with two wheels, and two small trolleys, each with one wheel, two handling winches are installed on one of the large bogies, it is also equipped with four additional handling winches, two of which are installed on small bogies, the main one is the top one, the frame is made in the form of a central beam and supported on two large bogies, to one of which, by means of beams, small bogies are attached, with At the same time, the working ends of the cables of all handling winches are fixed on a cargo trolley with a swivel grip.

Depending on the working conditions - the configuration and size of the premises (workshop, hangar), or an open production site, etc., it is advisable to use the following modifications:

- additional side metal frames are made in the form of vertical racks;

- one of the additional side metal frames is made two-column;

- both additional side metal frames are two-column;

- additional side metal frames are made in the form of horizontal beams, on which additional carts are installed.

The specified set includes all the signs, each of which is necessary, and all together are sufficient to achieve the specified technical result.

The invention is illustrated by drawings:

in fig. 1 shows a general view of a crane installed indoors, using its building elements of a structure (building);

in fig. 2 - with partial use of its building elements and one additional side frame;

in fig. 3 - an example of cargo handling;

in fig. 4 is a diagram of the degrees of freedom of the capture.

The crane-manipulator with cable drives includes an automated control system, including a bridge 1 with rangefinders, handling winches 2 and additional handling winches 3. grip 8. In addition, it is equipped with additional carts - two large carts 9, each with two wheels, and two small carts 10, each with one wheel.

Two handling winches 2 are installed on one of the large carts 9, it is also equipped with four additional handling winches 3, two of which are installed on small carts 10. The main - upper frame 4 is made in the form of a central beam and rests on two large carts 9, to one of which, by means of beams 11, small trucks 10 are attached, while the working ends of the cables of all handling winches 2 and 3 are fixed on a cargo truck 7 with a rotary grip 8.

Manipulation winches 2 and 3 in plan are installed at the corners of an equilateral triangle.

Crane with cable drives operates as follows. The load, for example, a metal sheet, is fixed by a swivel grip 8, the cables 12 driven by the handling winches 2 and 3 change the position of the cargo trolley with the swivel grip 8 due to rotation in the hinge 13 and changing the length of the cables 12. For vertical movement of the load, the cables 14 have an effect on the traverse 6, installed on the vertical guide rods 15, which allows you to achieve the necessary effort both when the load moves vertically up and when the load moves vertically down. Together, all drive cables provide manipulation of the rotary grip 8 in 6 coordinates.

The installation of handling winches 2 and 3 along the vertices of an equilateral triangle in the plan allows you to evenly distribute the load on the cables 12 for manipulating the swivel grip 8, and for the implementation of 6-axis manipulation, the bridge structure of the crane is equipped with two vertical guide rods 15 with drive winches 16, according to which moves the guide traverse 6 with a cargo trolley 7 and a swivel grip 8.

The proposed design makes it possible to achieve the indicated technical result due to the uniform distribution of the manipulation load, eliminating the dependence of the crane load capacity on the boom reach. In addition, the proposed crane allows you to increase the handling characteristics by providing movement of the crane grip along 6 coordinates.

Claims (5)

1. A crane-manipulator with an automated control system, including a bridge with rangefinders, handling winches, the working end of the cables of which is fixed on a cargo trolley mounted on a bridge with the possibility of movement, a hoisting mechanism mounted on a cargo trolley connected to a controlled rotary gripper with a device for fixing it spatial position, characterized in that it is equipped with vertical guide rods with drive winches, the bridge is made of the main - upper, and additional side frames, equipped with a traverse mounted for movement, and a cargo trolley pivotally mounted on the traverse with a swivel grip, also installed with the possibility of movement, and additional trolleys - two large trolleys, each with two wheels, and two small trolleys, each with one wheel, two handling winches are installed on one of the large trolleys, it is also equipped with four additional manipulating winches, two of which are mounted on small bogies, the main one is the upper one, the frame is made in the form of a central beam and is supported by two large bogies, to one of which, by means of beams, small bogies are attached, while the working ends of the cables of all manipulation winches mounted on a cargo trolley with a swivel grip. 2. Crane according to claim 1, characterized in that the additional side frames are made in the form of vertical metal racks. 3. Crane according to claim 1, characterized in that one of the additional side metal frames is made of two-column. 4. Crane according to claim 1, characterized in that the additional side metal frames are made of two-column. 5. Crane according to claim 1, characterized in that the additional side frames are made in the form of horizontal beams on which additional carts are installed.

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