RU212954U1 - LOADING CROSSMEMBER OF LAYING CRANE - Google Patents

Abstract

The utility model relates to lifting equipment, namely to a traverse for gripping, lifting and transporting rail links during loading and unloading operations. The technical result of the patented utility model consists in the elimination of manual operations of closing/disengaging the grippers, increasing the safety and productivity of loading and unloading operations due to the automatic closing/disengaging of the grippers with the possibility of using manual closing/disengaging of the grippers in emergency situations. SUBSTANCE: traverse for a crane with automatic gripping and uncoupling of the gripping device contains a beam in which grips and a locking mechanism are installed, including clamps connected through traction elements with rods of electric cylinders and manual pull, and stops made on the surfaces of internal grips, while the locking mechanism is made with the ability to bring the latches into contact with the stops and remove the latches from the stops. 3 w.p. f-ly, 10 ill., 1 pr.

Description

The utility model relates to lifting equipment, namely to a lifting beam for capturing, lifting and transporting goods, in particular for reloading rail links during the repair of a railway track using laying railway cranes (UK) and gantry cranes.

The rail sleeper grid (hereinafter referred to as RSHR) with link technology is large transportable blocks (up to 25 m long, weighing up to 18 tons) - links. The assembly, disassembly and repair of the RSHR links in stationary conditions - at the production bases of track machine stations (hereinafter referred to as PMS) are carried out by link assembly-dismantling-repair technological lines. The work on reloading links during track repair is carried out by laying railway cranes of types UK 25/9-18, UK 25/25 with a lifting capacity of 18 and 25 tons, respectively. When working at the PMS bases, loading and unloading operations are carried out mainly by gantry cranes with a lifting capacity of 10 and 12.5 tons, which work on overloading links in pairs. For quick capture of the links, the use of special lifting devices - link traverses is provided.

The following technical solutions are known from the prior art.

Known cargo traverse containing a frame including a beam, housing and lifting devices. The load-handling devices are hinged, respectively, on the edges of the beam. Tong grippers are used as load gripping devices (RF patent No. 2214961, publication date 10/27/2003).

It is also known an automatic load-handling device, in the lower part of the body of which there are two adjustable hooks, made with the possibility of rotation in a vertical plane relative to each other, having limiters for their rotation, two electromagnets fixed inside the body of the load-handling device and connected through rods with adjustable hooks (RF patent No. 189102, publication date 05/13/2019).

The closest analogue of the patented solution is a rail gripper, containing a body in which hooked levers are hinged to each other and a stop connected to the rod of the power cylinder, which can interact with the inner surfaces of the hooked levers, a cage with rollers moving along the hooked levers is hinged on the stop . The inner surface of the hook-shaped levers has a wedge profile, and their upper part is made in the form of hooks, while the stop shank is made in the form of a cam, the lower part of which has the ability to interact with the wedge profile to rotate the levers until the grip gap is closed on the rail head, and the upper part is able to interaction with the hooks of the hook-shaped levers, and the axis of the hinge connecting the hook-shaped levers to each other is mounted in the grip body with the ability to move along the vertical axis of the grip (RF patent No. 2484195, publication date 06/10/2013).

The disadvantage of the known devices is that they provide one of the types of control capture/disengagement of the gripping mechanism: either manual or automatic. When reloading links from a stack to a stack, or for example, from a stack to a rolling stock or vice versa, work with traverses at a height is required to bring the handle to the required position. At the same time, some tasks require the involvement of track fitters for manual opening of the grippers of the RSR links. This work is associated with unsafe conditions, because. it is required to carry out work at height during loading and unloading operations in stacks of links. In practice, at the PMS production bases, RSHR links with reinforced concrete sleepers are stored in stacks up to 15 links in height, which is about 6 meters and require manual control of the grip/release. This is a source of danger for workers to fall from a height when carrying out loading and unloading operations in stacks of links at a height.

The technical problem solved by the development of the proposed device is to increase safety, reduce operating costs and the time of production of loading and unloading operations with RSHR links due to the possibility of both automatic and manual methods of locking/uncoupling the grips.

The technical result of the patented utility model consists in the elimination of manual operations of closing/disengaging the grippers, increasing the safety and productivity of loading and unloading operations due to the automatic closing/disengaging of the grippers with the possibility of using manual closing/disengaging of the grippers in emergency situations.

The claimed technical result is achieved due to the design of the load-gripping traverse of the laying crane, containing a beam in which two pairs of grippers are installed, made of two movable parts, and locking mechanisms of the grippers, each of which contains a latch, a lever with a counterweight, a manual traction, a linear actuator connected to the electric drive, and a stop located on the inside of the grip. The latch is installed inside the beam with the possibility of its movement in order to bring it into contact with the gripping stop and moving it away from the gripping stop. The lever with a counterweight is movably attached to the latch, and the manual link and the rod of the linear actuator are each connected by means of their own cable to the latch for its retraction and extension when the manual rod is moved or during automatic control of the linear actuator rod.

The main structural elements are placed inside the body of the traverse beam to protect it from the effects of precipitation, damage when working with the traverse (during the production of loading and unloading operations and their protection from the effects of atmospheric precipitation), as well as from vandalism.

The linear actuator is connected to the electric drive to enable it to be controlled.

Due to the presence of manual traction and its connection with the main functional elements of the traverse, the possibility of manual control (closing and opening) of the gripper is provided. Due to the presence of a linear actuator connected to the main functional elements of the traverse, it is possible to automatically control (closing and opening) the gripper. Thus, due to the implementation of the locking mechanism in the above way, it is possible to bring the latch into contact with the stop and remove the latch from the stop, that is, the possibility of both manual and automatic control of the capture of the traverse.

In a particular case of the implementation of the utility model, an electric cylinder or a hydraulic cylinder can be used as a linear actuator. In this case, the traverse preferably contains a remote control unit for the position of the linear actuator rod for remote control of the gripper.

For autonomous power supply of the linear actuator, the energy obtained by rotating the generator shaft from the block of the rope-block system and accumulated in the battery or capacitor is used.

The claimed utility model is illustrated by the following drawings illustrating the design of the traverse in a particular case of the implementation of the utility model:

fig. 1 - diagram of the installation of the traverse on the beam;

fig. 2 - diagram of the installation of the traverse on the laying crane;

fig. 3 - view A from above;

fig. 4 - view B;

fig. 3 - section B-B;

fig. 6 - view D;

fig. 7 - section D-D;

fig. 8 - the position of the divorced parts of the capture of the traverse;

fig. 9 - the position of the reduced parts of the capture of the traverse;

fig. 10 is a block diagram of traverse control automation equipment.

Positions in the drawings indicate the following elements:

1 - traverse;

2 - traverse beam;

3 - capture;

4 - lever with counterweight;

5 - manual traction;

6 - cable;

7 - emphasis;

8 - latch;

9 - linear actuator (electric cylinder);

10 - cable;

11 - radio control transmitter;

12 - radio control receiver;

13 - generator;

14 - generator drive (rope block with chain sprocket);

15 - chain drive;

16 - charge limiter;

17 - battery or capacitor;

18 - box with relay;

19 - junction box;

20 - control unit.

In the design of the laying crane, the traverse 1 is permanently mounted in the rope-block lifting system of the chain hoist, while two traverses 1 were used, connected by a rope-block beam and installed at its ends (Fig. 1-3). Load-handling traverse 1 contains a beam 2, in which two pairs of grippers 3 are mounted at its ends. Each pair of grips 3 is made of two parts (external and internal) movably connected to each other. The beam 2 is equipped with a locking mechanism of the grips, comprising a lever 4 with a counterweight, a hand pull 5 with a handle, cables 6, a stop 7 located on the inside of the grip 3, and a latch 8. The lever 4 with a counterweight is movably attached to the latch 8, and the rod of the electric cylinders 9 (linear actuators with connection cables 10) and hand pull 5 are connected by means of cables 6 to the latch 8. Thus, the latch 8 is installed with the possibility of its movement (sliding in and out) in order to bring it into contact with the stop 7 of the grip 3 and move it away from the stop 7 capture 3 when moving the manual traction 5 or when controlling the electric cylinder 9 due to the radio control transmitter 11 installed in the crane cab or on the remote remote control, and the radio control receiver 12 installed in the cable-block frame (Fig. 2, 6-10) .

The traverse device also contains a generator 13 with a drive 14, a chain transmission 15 that converts the rotation of the rope block into the rotation of the generator shaft 13, a charge limiter 16, a battery or a capacitor 17, a box with a relay 18, a junction box 19 and a control unit 20 (Fig. 10 ). Generator 13 provides charge for the storage battery or capacitor 17.

The automation equipment for the control of the traverse 1 is shown in the block diagram (Fig. 10) and includes:

- technical means of the electric drive of the latch 8 of the grippers 3 of the traverse 1: actuators 9 (electric cylinders) (PF in Fig. 10);

- technical means of transmission, transformation and conversion of electricity from a power source to actuators (electric cylinders 9): generator 13 connected to drive 14 by chain transmission 15, charge limiter 16, battery or capacitor 17, radio control receiver 12 and control unit 20 (PA on Fig. 10);

- technical means of controlling electric cylinders: a radio control transmitter 11 and a radio control receiver 12 (control in Fig. 10).

The main function of the equipment is to remove the latch 8 from contact with the inner surface of the grip 3, on which the stop 7. The reverse movement of the latch (contact with the inner surface of the grip 3, on which the stop 7 is located) is carried out with the reverse movement of the rod of the electric cylinder 9 (when the rod is extended) or the manual pull handle 5 (when it is inserted into the beam 2), while the lever with counterweight 4 forcibly, due to the counterweight, contributes to the movement of the grip 8 in contact with the inner surface of the grip 3, on which the stop 7 is located.

If the clamps 8 are in contact with the surface of the inner grips 3 (the rod of the electric cylinder 9 is extended or the handle 5 is pushed into the beam 2 of the traverse 1), then when the traverse 1 is lifted from the RSHR link, the stop 7, having reached the latch 8, will not allow the grips 3 to come down ( Fig. 9). This position of the locking mechanism is used for automatic shipment of links, when after shipment, when removing the traverses 1, their grips 3 are in the divorced position.

If the latches 8 are removed from contact with the surface of the inner grips 3 (the handle 5 is extended from the body of the traverse 1), then when lifting the traverse 1 from the link, the stop 7, without encountering an obstacle from the latch 8, will allow the grips 3 to converge (Fig. 10). This position of the locking mechanism is used for automatic hooking of the RSHR links, when, after lowering the traverses 1 onto the link, they will automatically capture it.

To work in automatic mode, the hand-pull handle 5 must be inserted into the beam 2 of the traverse 1.

Example

A crane of the UK 25/25 type with a lifting capacity of 25 tons was used.

Electric cylinders with the following parameters are used to drive the traverse clamps:

- stroke - 50 mm;

- effort - 12 kg;

- voltage - 12 V;

- rod movement speed - 40 mm/s.

Parameters of technical means for controlling electric cylinders:

- radio control transmitter and receiver 21-2S Telecrane;

- generator GS-0.5.

Thus, the claimed traverse for the laying crane is equipped with automatic gripping and uncoupling of the gripping device with remote control, which improves safety, reduces operating costs and time for loading and unloading operations with RSHR links by replacing the manual method of closing the traverse grippers with a remote control method.

Claims (4)

1. The lifting beam of the laying crane, containing the beam in which are installed two pairs of grippers, each of which is made of two movable parts, and a locking mechanism of the gripper, characterized in that the locking mechanism of each gripper contains a lock, a lever with a counterweight, a manual pull, a linear actuator connected to an electric drive, and a stop located on the inside grip, wherein the latch is installed in the beam with the possibility of its movement in order to bring it into contact with the grip stop and away from the grip stop, the lever with a counterweight is movably attached to the latch, and the linear actuator rod and manual pull are connected by means of cables to the latch of the locking mechanism for its retracting and retracting during automatic control of the linear actuator rod or when moving a manual rod. 2. Traverse according to claim 1, characterized in that an electric cylinder or a hydraulic cylinder is used as a linear actuator. 3. Traverse according to claim 2, characterized in that it contains a remote control unit for the position of the linear actuator rod. 4. Traverse according to claim 3, characterized in that for autonomous power supply of the linear actuator, the energy obtained by rotating the generator shaft from the block of the rope-block system and accumulated in the battery or capacitor is used.

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