SU939768A1 - Load-handling apparatus - Google Patents

Description

one

The invention relates to the fastening of mine workings, in particular to means for mounting, transporting and removing the lining of mine workings.

A lifting and transporting device is known, which includes a running gear in the form of several suspension trolleys connected by means of a traction unit, one of which is provided with a brake, and a movement drive, which is connected to the brake-equipped trolley and with the flexible traction unit 1.

The disadvantage of such a device is the difficulty of controlling it during operation.

The closest to the invention according to its technical essence and the achieved result is a lifting-transporting device, including two carts suspended on the rail support, two carts mounted on it, hydraulic cylinders for moving the carts relative to each other, stoppers: and a lifting boom attached to the carriage with a possible) The ability to rotate in a vertical plane with the aid of a flexible element passing through blocks mounted on carts r2j.

The disadvantage of this device is the low efficiency due to the complexity of managing

10 due to the fact that the stoppers are not kinematically associated with displacement hydraulic cylinders. The latter circumstance requires the installation of special locking elements that ensure the work sequence of the stoppers.

In addition, the locking of the trolley provided in this device

Claims (2)

20 per monorail creates large forces in the stoppers and monorail, which increases the weight and complicates the design of the device. The aim of the invention is to simplify device control. The goal is achieved by the fact that the carts are equipped with a crank connecting rod mechanisms, a connecting rod and a crank of one of which are connected respectively to the creeping body of the trolley and the hydraulic cylinder rod, and the connecting rod and the crank of the other - with a ram, trolley body and hydraulic cylinder body, while the flexible element has adjustable stop. FIG. 1 shows the lifting device when installing support; in fig. 2 - the same, when moving from left to right; in fig. 3 the same, when extracting lining segments. The lifting and transporting device includes trolleys 1 and 2 mounted on a rail track 3 which is suspended from the support. Each trolley is equipped with running rollers k and blocks 5. On the trolley 2, a boom 6 is pivotally secured with a holding 7 support. On each bogie there is a crank-mounted crank mechanism consisting of a red pin 8, a connecting rod 9 of the slider 10, moving 11 carts in the direction of the rail, and an integral role of the stopper. The slide stroke is limited by stops 12 and 13. For reversing the direction of movement, the stop 13 is made removable. The hydraulic cylinder I is installed between the hinges 15. connecting the crank and the connecting rod. Flexible element 16 (rope, chain) bends around blocks of carriages 1 and 2, with one end 17 fixed on the boom 6, and the other end 18 hangs loosely from the block of trolley 2 and is equipped with a adjustable stop 19. The hoisting-and-transport device operates as follows. When fluid (air) is supplied to the piston cavity of the hydraulic cylinder 1, the crank 8 and the connecting rod 9 of the trolley 2 move up to the stop 13, while the slider 10 of the trolley 2 moves along the guides 11 to the upper position. When the trolley is moving, the slider rests on top of the support, thus the trolley 2 stops relative to the rail track 3. The cylinder rod moves the crank 9 and the crank 8 of the trolley 1 up to the stop 12. The slider 10 in the guides P moves to its lowest position and the trolley 1 under the action of the hydraulic cylinder k moves freely along the track by the magnitude of the stroke of the cylinder. The free end 18 of the flexible element 1b, depending on the type of operations performed by the lifting and transporting device, is secured: when installing the lining and lifting the load with the help of the boom 6 to the trolley 2; during transport remains free; when removing the lining attached to the lining elements to be removed. The flexible element is fastened to the trolley 2 by an abutment 19 into the trolley frame. When the trolley 1 is moving relative to the fixed trolley 2, the flexible element 1b pulls up and lifts the boom 6 with a load or supporting elements from position I to position II (Fig. 1). When fluid (air) is supplied to the rod cavity of the hydraulic cylinder 1, the trolley 1 is displaced towards the trolley 2, the boom 6 is lowered and fixed. The transportation is carried out in the same way, freeing the end 18 from the trolley 2. The lifting-transport device is moved in the opposite direction by moving the rods 9 from the left position (Fig. 1) to the right position (Fig. 2). In this case, when fluid is supplied to the rod cavity of the hydraulic cylinder 14, the body 1) is fixed by the slider 10 with respect to the support, and the carriage 2 moves along the track 3. By supplying the liquid to the piston cavity, the carriage 2 is fixed and the carriage 1 moves to the carriage 2 2). In a series of fluid delivery cycles, move the truck to the required distance. The removal of the support by the proposed cell conveyor device is performed as follows (Fig. 3). The flexible element 16 by the end 18 is secured to the support posts, the carriage 2 is twisted in the manner described above, the carriage 1 moves along the track 3 | at the same time, the boom 6 is pushed as far as it will go to the upper support, supporting it from falling when removing the struts. The end 18 of the flexible element 16 is moved to a distance. equal to the double stroke of the hydraulic cylinder I and removes the side elements of the lining (stand). By further movement of the trolley 1, the lining elements are moved from the redemption area of the production to the assigned space. - The lifting and transporting device can be used for transportation, installation, and also removal of lining in both horizontal and inclined mine workings. Claims of the invention: A lifting and transporting device including a rail track suspended on a support, two trolleys mounted on it, hydraulic cylinders for moving the trolleys relative to each other, stoppers and a lifting boom attached to the trolley with the POSSIBILITY of turning in a vertical plane using a flexible element passing through Blocks mounted on trolleys, characterized in that, in order to simplify the control of the device, the trolleys are equipped with crank-connecting rod mechanisms, the connecting rod and crank of one of which they are connected respectively to the slider, the hydraulic rod of the cylinder and the trolley case, and the connecting rod and the crank of the other - with the slider, the hydraulic cylinder case and the body of the other trolley, while the flexible element has a adjustable stop. Sources of information taken into account in the examination 1. German patent number 2 (CL. E 21 D, published 1976. 2.Patent of Great Britain №1380 05 cl. E 21 D 9/10, published. 1975 (prototype).