RU2300491C2 - Device for horizontal step-by step displacement of heavy loads - Google Patents

Abstract

FIELD: mechanical engineering, civil engineering, construction and repair of rail tracks, and other industries.

SUBSTANCE: proposed device for horizontal step-by-step displacement of heavy loads includes housing with hydraulic drive-providing lifting of load and foot and coupled with foot by roller member to provide free rolling of member of member on foot hinge-connected with housing by horizontal displacement mechanism. Horizontal displacement mechanism is made in form of two four-link articulated frames found at opposite sides of housing. Upper horizontal links of frames are secured on housing with displacement relative to longitudinal axis. Foot plays the part of lower horizontal links.

EFFECT: provision of device horizontal step-by-step displacement of heavy loads, simple in design, compact and light-weight.

2 cl, 6 dwg

Description

The invention relates to devices for horizontal stepping of heavy loads, which can be used in various sectors of the economy, for example, in engineering for moving goods in a room with limited space, when it is impossible to use a crane beam, or in construction, in particular for construction and repair railway track.

The closest in technical essence to the claimed technical solution and selected by the applicant as a prototype is a known device for horizontal stepwise movement of heavy loads, including a housing with a hydraulic actuator that provides lifting of the load (machine) and the sole (ski) and interconnected with the sole through a roller element with the possibility free rolling of the element along the sole pivotally connected to the body by means of a horizontal movement mechanism (see the description of the invention th testimony №212140 from 01.30.67). The horizontal movement mechanism is made in the form of an additional hydraulic cylinder.

The disadvantages of this design of the jack is the design complexity, high metal consumption, as a result, the complexity of control and maintenance of the device.

An object of the present invention is to provide a device for horizontal stepping of heavy loads of simple construction, compact and light.

The problem is achieved due to the fact that in the known device for horizontal stepwise movement of heavy loads, including a housing with hydraulic drive, providing lifting of the load and the sole and interconnected with the sole by means of a roller element with the possibility of free rolling of the element along the sole, pivotally connected to the body by means of a horizontal mechanism movement, according to the invention, the horizontal movement mechanism is made in the form of two four-link articulated frames located on opposite sides of the body, while the upper horizontal links of the frames are fixed to the body with an offset relative to the longitudinal axis, and the sole acts as the lower horizontal links.

At the same time, the hydraulic actuator is made in the form of two hydraulic cylinders vertically arranged on one axis of the housing, while a mounting bracket is rigidly mounted on one hydraulic cylinder and a roller element on the other hydraulic cylinder.

The proposed device for horizontal stepping of heavy loads is simple in design, easy to maintain, compact and light. The developed design of the device with a load capacity of 8 tons has dimensions of 170 × 190 × 190 mm, weight 14 kg, which allows you to use it as a manual device.

Conducted patent research did not reveal identical and similar technical solutions, which allows us to conclude about the novelty and inventive step of the claimed technical solution.

Domestic industry has materials. equipment and technology for the manufacture of the proposed walking jack and the possibility of its widespread use.

The invention is illustrated by drawings, where:

figure 1 - presents a General view of the device at the first step: the device is suspended from the rail;

figure 2 - General view of the device on the second cycle: the lower cylinder rod extended, the sole on the ground;

figure 3 is a General view of the device from the side on the second clock;

figure 4 is a General view of the device on the third step: the rod of the upper hydraulic cylinder is extended, the load is raised above the ground;

figure 5 - General view of the device on the fourth step: the lower cylinder rod is retracted, the load is lowered with a lateral shift to the right;

Fig.6 is a diagram of the location of the devices when the block turnout in the transverse direction for connecting the joints of the path.

A device for horizontal stepping of heavy loads 1 consists of the following main elements: body 2 with a hydraulic actuator, made in the form of two hydraulic cylinders 3 and 4 vertically arranged on the same axis of the body 2, working separately, while the rod 5 of one (upper) hydraulic cylinder 3 is rigidly the mounting bracket 6 is mounted, and the roller element 7 is mounted on the movable part of the other hydraulic cylinder (lower) 4. The hydraulic cylinders 3 and 4 can be made with the rods in opposite directions and in this case the roller element 7 the child is located on the rod 8 of the lower hydraulic cylinder 4 (as shown in the drawings). With the arrangement of hydraulic cylinders 3 and 4 on one another (or in the other), the rods will be directed in one direction, in which case the cylinder body will be the movable part of the lower hydraulic cylinder 4. on which the roller element 7 will be mounted. The roller element 7 can be made in the form of a single roller or in the form of a block of rollers, which reduces the contact voltage between the rollers and the rolling surface. The hydraulic actuator is interconnected by the roller element 7 with the sole 9 with the possibility of free rolling of the roller element 7 but it. The hydraulic actuator provides lifting of the load 10 and the sole 9. The latter is pivotally connected to the body 2 by means of a horizontal movement mechanism made in the form of two four-link hinged frames 11 located on opposite sides of the body 2, while the upper horizontal links 12 of the frames 11 are fixed to the body 2 with respect to the longitudinal axis, and the sole 9 performs the function of the lower horizontal links, while the axes of the hinges of the frames 11 are parallel to the axis of the roller element 7.

A device for horizontal stepping movement of heavy loads 1 works as follows. The device 1 is fixed by means of a mounting bracket 5 to the load being lifted 10. For example, for horizontal displacement of the turnout block to connect the joints of the track, the device 1 is fixed to the bottom of the rail with its location (device) between the bars of the lifted block. The duty cycle of device 1 consists of four clock cycles:

- 1st cycle: the device is suspended from the rail, the rods 5 and 8 of the upper 3 and lower 4 hydraulic cylinders are retracted, the device 1 hangs over the ground 13;

- 2nd step: the sole 9 under its own weight falls to the ground 13, and the rod 8 of the lower hydraulic cylinder 4 extends and roller 7 compresses the sole 9 to the ground 13;

- 3rd step: the rod 5 of the upper hydraulic cylinder 3 extends, lifting the load 10 above the ground 13;

- 4th step: the rod 8 of the lower hydraulic cylinder 4 is retracted, the load 10 is lowered with a lateral shift to the right along the path defined by the frames 11 of the device 1 and by rolling the roller 7 to the right along the sole 9.

If necessary, continue the displacement of the load, the cycle is repeated in the same sequence. The displacement can be stopped at any time by stopping the retraction of the rod 8 of the lower hydraulic cylinder 4, and the load 10 is lowered to the ground 13 by the upper hydraulic cylinder 3.

Using the proposed device 1: to move the cross block 14 and align its joints with the cross block 15, it is sufficient to use a set of 16 of the four proposed devices 1 instead of using a special crane. In this case, the load capacity of the devices used will be 2-3 times higher than the load capacity of the traveling laying crane.

The applicant has developed the proposed device 1 for horizontal stepwise movement of heavy loads with a lifting capacity of 8 tons. At a working pressure in the hydraulic system of 50 MPa (500 kgf / cm ² ), with a stroke of rods 5 and 8 of hydraulic cylinders 62 mm and lateral displacement for a cycle of 81 mm, time for lateral movement 1500 mm will be 5 minutes (with 4 pieces of the proposed devices and a hydraulic pump capacity of 8.6 l / min, the cycle time will be 15 s).

Claims (2)

1. A device for horizontal stepping movement of heavy loads, comprising a housing with a hydraulic actuator that provides lifting of the load and the sole and interconnected with the sole by means of a roller element with the possibility of free rolling of the element along the sole pivotally connected to the body through the horizontal movement mechanism, characterized in that the horizontal mechanism displacement is made in the form of two four-link articulated frames located on opposite sides of the housing, with the upper horiz ntalnye units of frames secured to the body with an offset relative to the longitudinal axis, and the lower horizontal function units performs outsole. 2. A device for horizontal stepping of heavy loads according to claim 1, characterized in that the hydraulic actuator is made in the form of two hydraulic cylinders vertically arranged on one axis of the housing, while a mounting bracket is rigidly mounted on one hydraulic cylinder and a roller element on the other hydraulic cylinder.

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