SU1266828A1 - Lift - Google Patents

Abstract

The invention relates to the field of lifting and transport machinery, in particular to the design of an elevator. The purpose of the invention is to increase reliability and safety. The elevator contains a cab 1 with a drive 3 located inside the frame 4, under which safety devices are mounted, including buffer 5 placed on the beam 6 and pins 8 pivotally connected to the beam, kinematically connected to the speed limiter and interacting with directional elements 7 reinforced on the wall of the elevator shaft. When the cab 1 speeds up and down, the limiter acts on the safety stops 8, which engage with the guide elements 7 along the guide, stopping the beam 6. At a further downward movement, the cab 1 and the frame 4 compress the buffer 5 and the cab stops. 3 il. N5 O5 O5 CX to 00

Description

The invention relates to hoisting and transport engineering, in particular to the design of the elevator.

The purpose of the invention is to increase reliability and safety.

In FIG. 1 shows a general diagram of an elevator; in FIG. 2 — section A — A in FIG. 1; in FIG. 3 is a view B in FIG. 2.

The elevator contains a cabin 1, connected by a rope 2 with a drive 3. The cabin is rigidly fixed inside the frame 4, formed by two vertical and two horizontal beams. Under the cab 1 coaxially with it is placed a buffer 5 mounted on a horizontal beam 6 mounted inside the frame 4 with the possibility of relative vertical movement. On the walls of the elevator shaft, guides are formed, formed by individual elements 7 of a stapled cross-section, inside of which there are vertical beams of the frame 4.

Elements 7 are installed with such a step that the vertical beams of the frame 4 overlap at least three elements 7 at each moment of movement.

On the lateral surfaces of the beam 6, rotary stops 8 are installed, connected with a speed limiter by a rope 9, and with each other by a rod 10. The mechanism is equipped with a return spring 11, which holds the stops 8 in the transport position.

Rotary stops 8 are double, mounted on shafts 12 passing through the beam 6, cranks 13 are mounted on the same shafts 12.

Swivel stops 8 in the working position (to stop the cab) are kept from further rotation by the limiters 14.

The elevator works as follows.

Raising and lowering the cab 1, suspended from the traction rope 2, is carried out by the drive 3. During its movement, the frame 4, rigidly connected to the cab 1, slides with its vertical beams in the bracket-shaped recesses of the guiding elements 7. The smoothness of movement and the straightness of movement are ensured by the fact that the vertical beams the frames 4 have a length greater than twice the installation step of the elements 7, so that at any moment the frame 4 is in contact with three pairs of guide elements.

The movable beam 6 with the buffer 5 mounted on it is in the lowest position relative to the frame 4.

The swivel stops 8 with a return spring 11 are held in their original position, providing free movement of the cab up and down.

If the cab exceeds the speed of movement downward above the set limit, the speed limiter 3 stops the rope 9, to which the crank 13 is connected. Further movement of the cab when the cable 9 is stationary causes the crank 13 to rotate and, therefore, the stops 8. In this position, the stops 8 engage with the nearest the guiding elements 7 and through the stops 14 stop the beam 6, having the possibility of vertical movement inside the frame 4. Continuing to move down, the cabin 1, the associated frame 4 compress the buffer 5, and the cabin smoothly stops.

Claims (4)

This invention relates to a lifting and transport machinery, in particular to an elevator structure. The purpose of the invention is to increase reliability and safety. FIG. 1 shows the general scheme of the elevator; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a view B in FIG. 2. The elevator comprises a cabin 1 connected by a rope 2 with a drive 3. The cabin is rigidly fixed 4 formed by two vertical and two horizontal beams fastened inside the frame. Under cab 1, a buffer 5 is mounted coaxially with it, mounted on a horizontal beam 6 installed inside frame 4 with the possibility of relative vertical movement. On the walls of the elevator shaft, guides are formed, formed by individual elements 7 of a clamped section, inside which the vertical beams of the frame 4 pass. Eents 7 are installed with such a step that the vertical beams of the frame 4 cover at least three elements 7 at each moment. x beams 6 are installed pivoting stops 8 connected with a speed limiter by a rope 9, and between them is a gooseneck 10. The mechanism is provided with a return spring 11 that holds the stops 8 in the transport position. The 8-double pivot stops are mounted on the shafts 12 passing through the beam 6, and the cranks 13 are mounted on the same shafts 12. The rotating stops 8 in the working position (to stop the cab) are kept from further turning by the stops 14. The elevator works as follows. The raising and lowering of the cab 1 suspended from the traction rope 2 is driven by 3. During its movement, the frame 4, is rigidly connected with the cabin 1, slides through its vertical beams into the clamp-shaped recesses of the guide elements 7. The smoothness of the movement and the straightness of movement are ensured by the fact that the vertical beams of the frame 4 have a length greater than twice the installation step of the elements 7 , so that at any time frame 4 is in contact with three pairs of guide elements. The movable beam 6 with the buffer 5 mounted on it is in its lowest position relative to the frame 4. The pivoting stops 8 with the return spring 11 are held in the initial position, ensuring the free movement of the cab up and down. When the cab speeds down above the set limit, the speed limiter 3 stops the rope 9 with which crank 13 is connected. Further movement of the cab with a fixed rope 9 causes the crank 13 to rotate and, therefore, the stops 8 rotate. In this position the stops 8 interlock with the upstream guide elements 7 and, through the stops 14, stop the beam 6 having the possibility of vertical movement within the frame 4. Continuing to move down, cabin 1, frame 4 connected to it, compresses buffer 5, and the cabin smoothly stops. Claims of the invention An elevator comprising a drive with a cable-carrying body, bending around a rope, at one end of which a cab is suspended, rigidly fixed inside a frame, made with the possibility of movement in guides in the form of elements installed along the shaft with a recess on the working surface bounded by walls covering the said frame and a safety device, characterized in that, in order to increase reliability and safety, the safety device includes mounted coaxially with the cabin through ohm horizontal beam buffer element mounted inside the frame and made with the possibility of vertical displacement, as well as a speed limiter and swivel stops, with the possibility of kinematic communication with the latter and pivotally mounted on a horizontal beam with the possibility of limited rotation and interaction with the upper end surfaces limiting the groove walls of guide elements. Aa 6id 6 Fig.Z