SU1691532A1 - Portable explosion-resistant barrier - Google Patents

Abstract

The invention relates to mining and can be used for the localization of underground workings in emergency conditions. The purpose of the invention is to increase the efficiency of the jumper (P) and the efficiency of its installation. Mobile P I includes transport trolley 1 with accessories | Strutting, screen and mounting | elements connected to the screen and R. Vyvry 3 is filled with P in the form of a telescopic multisectional pillar of sections 5, 6 and 7 interconnected by hydraulic cylinders. Sections 5 and 6 have guides 10 and 11 for sections 6 and 7, and in section 7 there is a seat for the hydraulic strut. On sections 5, 6 and 7, by means of vertical hinges, shields 15, 16 and 17 are installed with the possibility of their rotation in the horizontal plane by E. On the trolley 1, two horizontal force cylinders are hinged with the possibility of rotation in the vertical plane by E. For cylinders and shields E made in the form of hydraulic cylinders. Trolley 1 is fixed on rails by the front and rear shoes. Delivered by an electric actuator, P is connected to a source of working medium and is fixed by shoes. The cylinders are extended all the way into the roof of the section 6, 7 and strut. By means of E, the shields are rotated into the working position up to the stop into the walls of the excavation, as well as cylinders, which then expand into the sides of the excavation. 6 Il. Oh about the joint venture oj go

Description

The invention relates to mining and can be used for the localization of underground workings in emergency conditions.

The aim of the invention is to increase the efficiency of the jumper and the efficiency of its installation.

FIG. 1 shows a movable jumper in the working position; in fig. 2 - also with two horizontal power cylinders; in fig. 3 - movable jumper in the transport position; in fig. four

- longitudinal section of the lintel; in fig. five

view in FIG. four; in fig. 6 is a view B in FIG. four.

The movable explosion-proof bridge includes a transport carriage 1, screen 2 and mounting elements 3 connected to screen 2, and a thrust fixture made in the form of a telescopic multi-section stand with sections 5, b and 7 interconnected by hydraulic cylinders 8. The thrust fixture may also have two horizontal power cylinders 9. Sections 5, 6 and 7 have the form of a rectangular open-top frame, the dimensions of which do not exceed the dimensions of a typical mine trolley. Section 5 has guides 10 for section b, and the latter has guides 11 for section 7. Section 7 has a cylindrical seat 12 in which is mounted a hydraulic strut 13. Shields are mounted on sections 5, 6 and 7 using vertical hinges 14 15,16 and 17, of which the screen is made. The panels are installed with the possibility of rotation in the horizontal plane by means of the mounting elements 3 and the complete overlapping of the cross section of generation in the working position. The shields 15 are provided in the lower part with flaps 18 fixed to the shields 15 by bolts 19 with the help of horizontal axes 20. Horizontal power cylinders 9 are mounted on the transport carriage 1 with hinges that can be rotated in the vertical plane with the help of mounting elements 3. Power cylinders 9 are mounted on axle x 21. The mounting elements 3 of the power cylinders 9 and the shields 15, 16 and 17 are made in the form of hydraulic cylinders.

Transport trolley 1 is supported in working (unraveled) position on the front 22 and rear 34 shoes (Fig. 4 and 6), each of which consists of two pillars 24, fixedly connected to each other by a link 25. The shoes 22 and 23 are retracted and wedged at screws 26 between the rails and the inclined surfaces 27 of the transport trolley 1. Screws 26 are mounted on

levers 28 pivotally mounted on the transport trolley 1 using axles 29. The shoes 22 and 23 are mounted in transport position on the transport trolley 1 in the slots 30. To install the shoes, the levers 28 with screws 26 are folded up onto the axle 29, then the shoes 22 and 23 manually winding between rails and inclined support surfaces 27

0 (Fig. 4) of the transport carriage 1.

With screws 26, the shoes 22 and 23 are pushed and wedged between the rails and the transport carriage 1 until gaps appear between the wheels of the transport

5 carts 1 and rails. The shoes 22 and 23 form self-braking wedge joints on the surface 27 with the wheels, therefore when the vertical spacer thrust 13, the shoes 22 and 23 do not move along the rail. The gap between the shoes 22 and 23 and the soil is 10-30 mm (Fig. 6). Therefore, if, when thrusting a vertical strut, one or both rails are thrown into the soil or lose stability and collapse under the effect of a vertical load, the transport carriage 1 with the shoes 22 and 23 will fall 10-30 mm and the latter will be installed on the working soil.

When the expected load from the explosive

0 the waves are small and the thrust forces can be reduced, the lintel can be unzipped not on the shoes 22 and 23, but on the wheels of the transport trolley 1 and the rails.

5 The jumper in the transport position (Fig. 3) is delivered along a rail track, for example, by an electric locomotive, to the installation site. In the transport position, the jumper dimensions do not exceed the typical dimensions.

0 mine trolley.

The pumping station for supplying the working fluid to the hydraulic cylinders of the movable bridge can be fixed, for example, to an electric locomotive or mounted on

5 soil production. Electricity can be supplied from batteries of an electric locomotive or from a mine electrical network. The pumping station shall deliver 40 l / min of working fluid at

0 maximum pressure 32 MPa. The control panel (hydraulic) hydraulic cylinders must be mounted on a movable jumper. To connect the console to the pumping station, it is necessary to connect a pressure line and a drain line to the console.

To transfer the jumper from the transport to the working position and spread it in the mine, you must manually install the shoes 22 and 23 between the rails and the wheels of the transport trolley 1, push in and peel the shoes 22 and 23 using screws 26, connect the discharge and drain lines of the pump station to the hydraulic console , fully extend sections 6 and 7 to the extreme upper position using hydraulic cylinders 8, make vertical jumpers using hydraulic strut 13, turn shields 15, 16 and 17 (Fig. 5) until they stop in st APIS generation, folding boards 15 to unscrew locking screws 19 and lower flaps 18, power cylinders 9 by means of lower mounting elements 3 from a vertical position to a horizontal, rasperet horizontal actuators 9 in the wall production.

 In this position, the jumper can be loaded with an explosion of methane-air mixture and dust.

Claims (2)

Claims 1. Mobile blastproof jumper comprising a transport carriage with a thrusting device, a screen mounted on a transport carriage, and Mounting elements connected to the screen and the thrust fixture, characterized in that, in order to increase the efficiency of the jumper and the speed of its installation, the throttle fixture is made in the form of a telescopic multi-section stand, and the screen is made in the form of shields hinged on the telescopic multi-section racks and installed with the possibility of rotation in the horizontal plane by means of mounting elements and complete overlapping of the cross section of generation in the working position, mounting elements made in the form of hydraulic cylinders. 2. The jumper according to claim. 2, wherein the thrust attachment is provided with two horizontal spacer cylinders, hinged on the transport carriage and mounted for rotation in a vertical plane by means of mounting elements. Explosion 15 4 C W 28 26 21 h V frvi Type A eleven / 77 7/7 777 77 Fm.b View 6 24 // 6 P sixteen / 77 777 25 14