RU2442897C2 - Shaft-sinking machine - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: the invention relates to mining, in particular, to shaft-sinking machine. The shaft-sinking machine comprises: a hull; a working element; a device for machine displacement in vertical direction and creating necessary force to feed the working element into the bore; an auger drill used to load central riser auger; a riser auger used to hoist rocks into the bunker on the top of the hull; bellmouths and barrels used for loading gigs with rock; loading devices; hydromanipulators with perforators and hydraulic hammer; high pressure pump for tamping. The machine hull with ball jointed hydraulic connections is assembled from three parts with jack-supported units fitted with tank or vehicle wheels with hydraulics. The working element is assembled on the lower part of the hull and comprises a smaller carrier and a larger carrier, where working rotors are installed with an angle to the bore and are fitted with roller bits.

EFFECT: increased device efficiency and increased mining speed.

1 dwg

Description

Barrel penetrating machine - an invention designed to create the standard sizes of mining machines for driving tunnels of various sections and depths, interfacing with water collecting chambers, electrical substations, near-barrel yards at planned horizons with high penetration speeds, because delivery of the rock from the trunk is carried out continuously by one or two double-end lifts and the penetration rate will be limited by the technical capabilities of the lifts.

In the eighties, the average monthly penetration of trunks in the USSR, real and planned, was 50-70 m / month, in some cases 100 m / month, penetration of 150 m / month was considered high-speed penetration. The average annual penetration was 30-50 m / month, because a lot of time was spent on the construction of catchment areas, substations.

Carrying out patent research, the author did not find any essentially fundamental changes in the methods and methods of conducting mechanized tunneling.

Currently, the drilling of shafts of various sections and depths by the organizations “DONETSKSHAKHTROPRODKA”, “SOYU3-SPETSSTROY”, OJSC “EVRAZRUDA” and others is carried out at drilling and blasting operations - drilling and blasting operations with average speeds of 60-100 m / month.

For comparison, mechanized shaft driving devices are SKN and PD-2 tunneling machines proposed by TsNIIIPODZEMMASH, as well as patents SU 1735590,1372046, 137865,118127, RU 1814827 and many others with planetary-type actuators that have complex kinematics of transmitting rotation to the working bodies are very energy consuming since are intended for grinding rock into pulp and for delivering pulp by pneumatic elevators (airlifts) to the tub. The closest to solving trunk penetration problems is SU 1694909: structurally, using a three-beam caterpillar track, advanced kinematics of the working body, delivery of the rock to a special self-unloading vessel with a central screw, autonomy - without cable connection, energy connection and the function of attaching the trunk, but having drawbacks, is taken away ; a planetary working body in two disks located perpendicular to the axis of the barrel — large cones of sliding cones and an increase in energy consumption, cast doubt on the ability of a special loading device to load the central auger with destroyed rock, using a special self-unloading vessel along the axis of the barrel it is possible to use a single-end lift - a sharp planned decrease in the rate of penetration . The very design of such working bodies provides for cone sliding angles from 3 to 12 degrees depending on the speed of rotation of the working rotors and carriers, and this is already the planned increased wear of cones, bearings and, accordingly, increased energy costs.

The present invention is directed to a compact, mobile, simple in design device.

The technical result consists in increasing the productivity of the device, in increasing the speed of penetration of 500 m / month and above, because Designed to disassemble the rock into large fractions of 50-60-100 mm and the issuance of large fractions of the central screw. The installation of the working bodies of the rotors on the sleeves drove at an angle to the bottom in a strictly coordinated movement of the machine down with the rotation of the drove with the rotors constructively reduces the sliding angle of the cones to 0, which reduces the operation of cones to direct rolling, reducing their wear and reducing energy costs. The rotors, like a corkscrew, are screwed into the face along the pitch of the rotors. The device is controlled from the control panel located on the bottom of the case. When watering areas or areas with unstable rock formations pass through perforators on hydraulic manipulators, holes are drilled and grouting is performed through them with a higher pressure pump.

Compared with rotors across the entire cross-section of the face, the installation of working rotor bodies on the carrier sleeves at an angle allows the axial loads of the device to be removed, giving rotation to the smaller carrier and its rotors, the opposing face destruction forces will try to deploy the device in the opposite direction, but by connecting the second (large) carrier with its rotors, the opposing forces of the first carrier will be fully compensated (rotation of the carrier in different directions) and efforts will only be required to destroy the rock along the rotor forming moat. Since the rotors of the small carrier take part in the work, 50% of the working tools, the loads on them will be 0-MAX-0, then the load value will be small. We drove a large rotors participate _^quarter of the cones, therefore, also the load will be small.

The proposed device is free from the above disadvantages and has several advantages:

1. Compactness.

2. Simplicity and ease of construction.

3. Maintainability, reliability, less wear of cones.

4. Maneuverability - penetration of the barrel, mates.

5. Equipment by manipulators (perforators, hydraulic hammers).

6. Simple and reliable kinematics of movement of interconnected nodes and parts.

7. Low power consumption.

8. Low cost.

The specified technical result is achieved by the fact that the device includes a three-part prefabricated body 7 with hydraulically controlled spherical joints 6 assembled on the lower part of the large 4 and small 3 carrier with rotors 1 and 2 and hydraulic rotors having an inclination in the direction of rotation of the carrier, which rotate in different directions, loading screws 8 of the vertical screw 10 with gear 10, blocks of tank and automobile wheels 5 with hydraulic drives and jacks for expansion and installation of the device along the axis of the barrel, to create a more rigid ntakta bottom of the housing with the side surface of the barrel, reducing the vibrations from the working rotors on mobile units lower housing installed tank, rubber-coated wheels, on the middle and upper housing parts are installed road wheels with tires inflated porous rubber (mikroporka) under pressure to the tire model. For the safety of the device (spontaneous sliding down the barrel surface, changing the weight of the device — putting the bucket in the loading cup, filling the storage hopper with rock, repairing any block of wheels, making mates) each part of the body is equipped with 5 wheel blocks, thrust jacks are equipped with GPU - hydropneumatic accumulators with a device for automatic support of a given pressure.

To start the machine into operation, it is assembled at the wellhead, connected by the required communications, tested units and mechanisms, then the machine is put into operation. The working bodies (rotors 1, 2 on carriers 3, 4), with a constant coordinated supply of blocks of wheels 5 driven by hydraulic motors with worm gears, each powered from their oil station, are screwed into the face as a corkscrew, the destroyed rock is picked up by screws 8 for loading the vertical auger 10 with the drive 10. The vertical auger 10 delivers the rock through the discharge windows and estrus 11 to the hopper 12, wherefrom the loading device (not shown) the rock is fed into the tub fed by lifting through the bells 9 of the upper part of the core whisker in badevye cups 13 middle housing part 7. When the large (250 mm or more) fractions boot augers screened them, and they can be destroyed by hammer on the monitor. The movement of the car is independent.

When assembling a one-piece body (without ball hydraulically controlled joints), only the trunk is drilled. For the interfacing of the chambers of the water collectors, electrical substations, planned horizons and near-barrel yard, the use of a precast building is required.

Figure 1 marked:

1. The rotors of a small carrier.

2. The rotors of a large carrier.

3. Small carrier.

4. A large carrier.

5. Blocks of wheels.

6. Spherical hydraulically controlled joints of the housing parts.

7. Parts of the housing.

8. Boot augers.

9. Tub sockets.

10. Vertical auger with gear.

11. Unloading windows with estrus.

12. The collection of rocks of the upper part of the body.

13. Tub glass for loading the tub.

Claims (1)

Trunk tunneling machine - a device that includes a body, a working body, a device for moving the machine up and down and creating the required efforts when feeding the working body to the face, screw devices for loading the central vertical screw, vertical auger for dispensing rock into the hopper of the upper part of the body, tub bucks and bucket cups for loading tubs with a breed, loading devices in tubs, hydraulic manipulators with perforators and a hydraulic hammer, a larger pressure pump for grouting, characterized in that the casing with ball bubbled hydraulically compounds assembled from three parts, with poddomkrachennymi blocks tank and truck wheels with hydraulic actuators, actuator assembled on the lower housing part and consists of small and larger with working rotors driven at an angle to the bottom, equipped with cutters.

Images