SU909043A1 - Installation for trenchless laying of pipes by superimposed pressing and driving in - Google Patents

Description

(54) INSTALLATION FOR RUNNING PIPES WITH SIMULTANEOUS SELLING AND RACKING

one

The invention relates to equipment intended for the installation of horizontal and inclined wells in compacted soils and bedrock masses, and can be used in the coal industry for trenchless laying of pipelines for supplying water, air-mechanical foam, gypsum and cement slurry solutions, means of livelihood of people, etc.

A device for penetration of horizontal workings is known. It contains a percussion mechanism, a sectional pipe stavion and a starting (starting) device. The working body of the device is a pulsed pneumatic punch that forms a well in the collapsed rock mass and draws casing 1 through it.

However, as their use has shown, in view of the considerable friction between the pipe being laid and the collapsed material, these devices cannot, in all cases of their use, ensure the passage of a well of the required (required) length.

The closest in technical essence and the achieved result to the proposed invention is an installation for trenchless pipe laying by simultaneous punching and driving, including a shock-feed mechanism containing a guide frame, hingedly connected to the support plate, piston cylinders for movement along the guide frame of the pressure beam and interacting with the sectional tube stand and handpiece, pump unit and control unit 10 of the control 2.

A disadvantage of the known device is that when the impact mechanism is struck, the energy of dynamic forces is expended in moving the press bar with the crosshead, which reduces the energy output of the impactor to the pipe head and thereby decreases the productivity of the device. This is due to the fact that the speed of movement of the press rod due to the inertia of its mass is small compared with the speed of the initial movement of the impact mechanism.

The purpose of the invention is to increase plant productivity.

The goal is achieved by the fact that the pressure beam is mounted with the possibility of axial movement relative to the hammer. In this case, the firing pin may have a stop crown, between which and the traverse is an elastic element. The elastic element can be made in the form of a spring. This arrangement makes the work of the impactor independent of the piston cylinders and eliminates the cost of its energy for moving the rods of these cylinders, which allows the impactor to increase the impactor to the pipe stack laid and, in the end, to increase the productivity of the installation.

The drawing shows an installation for the non-laying laying of pipes simultaneously with pushing and driving, top view.

The installation consists of a nozzle 1, a sectional tube stand 2, a pump unit 3, a control panel 4 and a shock mechanism, including a stop plate 5, piston cylinders 6, a drummer 7, a pressure beam 8, a spring package 9 and a frame 10. Frame 10 The basis for placing and fixing on it all the parts of the shock-feed mechanism of the installation. The stop plate 5 is hingedly connected to the frame 10. Such a connection allows, without changing the position of the stop plate 5, to install and fix in the mine workings of the mines by means of the stop and supporting posts (not shown) the frame at an angle in any direction to the horizontal plane. Two piston cylinders 6 are connected to the trunnions of the frame 10 at one end, and from the other end to the trunnions of the push-in 8-jib 8, and the thrust beam 8 is mounted on the front end of the hammer 7 freely with the possibility of longitudinal movement along the cylindrical groove of the drummer’s body. Between the push traversing 8 and the stopper captain 11 of the drummer 7. a package of dish-shaped springs 9 is placed. The head of the drummer 7 is made in the form of a cylindrical psha 12, on which the back end of the section of the pipe tube 2 being put on to the stop crown 11, It is mounted and fixed in the centering connector of the multi-collar 13 of the frame 10. The pump unit 3 supplies the working fluid to the piston cylinders 6 under pressure. The control panel 4 allows the operator to remotely control the laying of the pipe stack the work of the drummer 7, the engine of the pump unit 3 and piston cylinders 6.

The installation works as follows.

When the working fluid is supplied into the cavities of the forward stroke of the piston cylinders 6, they will be extended by the rods, which, interacting with the pressure beam 8, will move it and the striker 7 along the guides of the frame 10 while simultaneously compressing the spring package 9. interact with the back face

of the pipe tube 2 to be laid, will move the latter: At the same time, the tip 1 of the pipe rod 2 will be inserted into the collapsed mountain mass, moving apart and sealing it. When the drummer 7 is turned on, the latter makes a blow to the rear end part of the pipe rod 2, which will receive a kinetic energy impulse and perform work under the action of dynamic forces on the destruction of rock blocks and compaction of crushed mountain masses. At the same time, due to the inertia of the masses of the pressure bar 8 and the ples of the piston cylinders 6, the package of springs 9 will slightly expand, resulting in the latter giving part of the potential energy to the pipe stack to be set 2. Upon completion of the impact process, depending on the resistance of the pipe rod 2, additional accumulation will occur springs 9 of potential energy due to pressing them with a pushing head 8 under the influence of extension of the piston-piston rod 6. At the subsequent strikes of the striker 7 a pulsed The movement of the pipe rod 2 takes place during the time that the rods of the cylinder cylinders 6 are extended, i.e. during the working stroke of the latter. After the hammer 7 is turned off, the working fluid is supplied to the reverse cavities of the piston cylinders 6 until the impact-feed mechanism takes up its initial position.

Then, in the resulting gap between the rear end of the laid pipe tube 2 and the front end of the hammer 7 is inserted and connected to the pipe line 2, its next, section, the working fluid is fed into the forward stroke cavity of the piston cylinders 6 and the hammer 7 is turned on. Further, the operation of the shock-feeding mechanism of the installation is similar.

The installation makes it possible to efficiently lay pipelines with a diameter of up to mines of any category for gas and dust. 200 mm through the collapsed rock mass fortress up to 6 units on a scale of prof. MM The horse horse with lumpiness up to 500 mm.

It should also be noted that the use of the proposed installation significantly increases the efficiency and safety of mine rescue operations for the livelihood of people who have been isolated by blockage or coal of sudden release, as well as for extinguishing endogenous fires in mines.

Claims (2)

1. Installation for trenchless pipe laying by simultaneous punching and driving, including a shock-feed mechanism, containing a guide frame, pivotally connected to an anvil plate, pressure cylinders for moving along a guide frame a pressure beam and impactor, interacting with a sectional pipe stack and tip, pump unit and control panel, characterized in that, in order to increase the capacity of the installation, the pressure traverse is installed with the possibility of axial movement relative to the drummer. 2. Installation under item 1, characterized in that the drummer has a stop crown, between which and the spreader there is an elastic element. 3. Installation on PP. 1 and 2, characterized in that the elastic element is designed as a spring. Sources of information taken into account in the examination of gyog kg 9KPy7Y. P F 09 P 7/28 1. Patent of Germany No. 2611678, cl. E 02 D 7/28 pub. 02 D 7/20 2. Patent of Germany No. 2622702, cl. h 02 U // 2U, publ. 1977.