CN101705817B - Subaerial comprehensive winning machine - Google Patents

Abstract

A surface comprehensive coal mining machine, comprising a mining mechanism, a mining mechanism telescopic hydraulic device, a mining mechanism hydraulic lifting device, a loading bucket, a stable hydraulic prop, a scraper conveyor, a walking mechanism, a belt conveyor, a belt conveyor rotary lifting mechanism, and a main frame . The open-pit comprehensive coal mining machine of the present invention can adjust the direction and height of the mining mechanism according to the coal seam conditions, and the belt conveyor can also adjust the height according to the actual situation, and can rotate left and right, which can realize continuous large-scale coal mining and transportation. Due to the side-by-side cutting The distance between the mechanisms is small and uniform, so the particle size of the mined coal is small, moderate and uniform, which can save drilling and blasting, secondary crushing and shipment, and continuous operation, which greatly improves the comprehensive mechanization and coal mining efficiency. Reduce labor intensity and further reduce the production cost of surface coal mining.

Description

Surface comprehensive coal mining machine

technical field

The invention relates to an open-pit comprehensive coal shearer, in particular to an efficient, safe and mechanized open-pit comprehensive coal shearer, which belongs to the technical field of mining equipment.

Background technique

At present, the open-pit mining process generally adopts drilling and blasting, and then uses excavators or electric shovels to excavate, load and transport the process, which not only has low production efficiency and high labor intensity, but also the volume of the mined coal is different, and it needs to be carried out many times. Only by crushing can the granularity required for use be achieved, which increases the cost per ton of coal. In addition, a coal cutter newly introduced from abroad has relatively small coal mining height and width, high power and low efficiency, and it is difficult to meet the needs of open-pit mine production. Developing key technologies and equipment for high-yield and high-efficiency fully mechanized mining faces, intensifying production, and improving the comprehensive mechanization level of open-pit coal mining are the main ways to increase production and efficiency in major coal-producing countries in the world today.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of low coal mining efficiency and the uneven size of the mined coal in the traditional open-pit coal mining process, which needs to be crushed multiple times. The front end of the machine can move up and down, far and near while rotating. The thickness of the cutting coal seam is large, the particle size of the coal block is small and uniform, the maintenance cost is low and convenient, the degree of comprehensive mechanization is high, safe and efficient, and the labor intensity is low. Drilling and blasting can be avoided. , secondary crushing and shipment, and can realize continuous mining operation of open-pit comprehensive coal mining machine.

The object of the present invention can be achieved by the following technical solutions: including mining mechanism, mining mechanism telescopic hydraulic device, mining mechanism hydraulic lifting device, loading bucket, stable hydraulic prop, scraper conveyor, walking mechanism, belt conveyor, belt conveyor rotation The lifting mechanism and the main frame, the main frame is rotatably installed on the walking mechanism, the rear end of the loading bucket is hinged at the front end of the main frame, and a bucket hydraulic device is installed between the loading bucket and the main frame; the scraper conveyor is installed on On the main frame, the front end of the scraper conveyor is docked with the rear end of the loading bucket, and the rear end of the scraper conveyor extends above the front end of the belt conveyor at the rear end of the main frame; between the belt conveyor and the main frame There is a rotating lifting mechanism; two pairs of stable hydraulic props are installed on both sides of the main frame; the rear end of the mining mechanism is connected to the front end of the telescopic hydraulic device of the mining mechanism, and the telescopic hydraulic device of the mining mechanism is hinged on the forearm. The bottom end of the forearm is fixedly connected to the main frame, a pulley is installed on the upper part of the forearm, a hydraulic lifting device of the mining mechanism is installed between the telescopic hydraulic device of the mining mechanism and the main frame, and a hydraulic lifting device of the mining mechanism is installed on the upper part of the telescopic hydraulic device of the mining mechanism. A wire rope lifting device supported by the pulley and pulled by a pulley winch; the mining mechanism is composed of a plurality of cutting mechanisms arranged side by side, and each cutting mechanism is composed of a cutting head, a reducer, and a clutch protection device connected in sequence It is composed of a drive motor, and each cutting head corresponds to a set of reducer, clutch protection device and drive motor; the cutting head is located at the front end.

The loading bucket is in the shape of a dustpan, and rotating star wheels are installed on both sides of the loading bucket, and the front end of the scraper conveyor is installed in the opening between the two rotating star wheels.

The belt conveyor rotary lifting mechanism includes a belt conveyor lifting mechanism and a belt conveyor rotating mechanism. The belt conveyor lifting mechanism is composed of pulleys and steel wire ropes, or a belt conveyor hydraulic device; the belt conveyor rotary mechanism adopts a rotary hydraulic device. Composed of connecting rods.

The front end of the belt conveyor is equipped with a disc funnel, the top of which corresponds to the rear end of the scraper conveyor.

The front end of the cutting head is bullet-shaped conical, with spirals on the peripheral surface and protruding points between the spirals.

Through the combination of the above mechanisms, the efficient crushing and mining of the mining mechanism is realized, and the conveying mechanism is transported. The mining mechanism and the conveying mechanism can rotate left and right, thereby realizing a large-scale mining work.

The open-pit comprehensive coal mining machine of the present invention can adjust the direction and height of the mining mechanism according to the coal seam conditions, and the belt conveyor can also adjust the height according to the actual situation, and can rotate left and right, which can realize continuous large-scale coal mining and transportation. Due to the side-by-side cutting The mechanism spacing is small and uniform, so the particle size of the mined coal is small, moderate and uniform, which can save drilling and blasting, secondary crushing and shipment, and continuous operation, which greatly improves the degree of comprehensive mechanization and coal mining efficiency. Reduce labor intensity and further reduce the production cost of surface coal mining.

Description of drawings

Fig. 1 is the front view of surface comprehensive shearer;

Fig. 2 is the top view of the mining mechanism of the surface comprehensive coal mining machine;

Fig. 3 is the schematic diagram of the cutting mechanism of the surface comprehensive coal mining machine;

Fig. 4 is the structural schematic diagram of the loading bucket of the surface comprehensive coal mining machine;

Fig. 5 is a top view of the belt conveyor of the surface comprehensive coal mining machine.

Detailed ways

Referring to Figures 1 to 5, the open-pit comprehensive coal shearer of the present invention consists of a mining mechanism 2, a mining mechanism telescopic hydraulic device 3, a loading bucket 4, a forearm 5, a mining mechanism hydraulic lifting device 6, a stable hydraulic prop 7, and a scraper conveyor 8 , mainframe 9, running gear 10, belt conveyor rotating mechanism 13, belt conveyor elevating mechanism 11, belt conveyor 12 form.

The mining mechanism 2 is composed of a plurality of cutting mechanisms side by side. Each cutting mechanism is composed of a cutting head 1, a reducer, a clutch protection device and a drive motor 18 connected in sequence. The cutting head is located at the front end, and each cutting head 1 corresponds to a set of reducer, clutch protection device and drive motor. The front end of the cutting head 1 is bullet-shaped conical, with multiple helixes on the peripheral surface and protruding points between the helixes. The number of cutting mechanisms that make up the mining mechanism 2 can be designed and installed according to actual applications and the installation spacing can be adjusted.

The main frame 9 is rotatably mounted on the running gear 10, the rear end of the loading bucket 4 is hinged on the front end of the main frame 9, and a bucket hydraulic device is installed between the loading bucket 4 and the main frame 9. The scraper conveyor 8 is installed on the main frame 9, the front end of the scraper conveyor 8 is docked with the rear end of the loading bucket 4, and the rear end of the scraper conveyor 8 extends to the front end of the belt conveyor 12 located at the rear end of the main frame 9 Above; between the belt conveyor 12 and the main frame 9, a rotating lifting mechanism (belt conveyor rotating mechanism 13, belt conveyor lifting mechanism 11,) is installed; two pairs of firm hydraulic props 7 are installed on both sides of the main frame 9 The rear end of the mining mechanism 2 is connected to the front end of the telescopic hydraulic device 3 of the mining mechanism, and the telescopic hydraulic device 3 of the mining mechanism is hinged on the forearm 5, and the bottom end of the forearm 5 is fixedly connected to the main frame 9. The upper part of the forearm 5 is equipped with a pulley 20, the mining mechanism hydraulic lifting device 6 is installed between the mining mechanism telescopic hydraulic device 3 and the main frame 9, and the top of the mining mechanism telescopic hydraulic device 3 is provided with support via the pulley 20, And a wire rope pulling device pulled by a pulley winch.

The rear end of mining mechanism 2 is installed on the forearm 5 by the telescopic hydraulic device 3 of the mining mechanism, and the bottom end of the forearm 5 is hinged on the front part above the main frame 9 . A hydraulic lifting device 6 is installed between the bottom of the mining mechanism 2 and the front end of the main frame 9 to drive the mining mechanism 2 to move up and down. The upper part of the mining mechanism has a wire rope traction and pulling through a pulley winch traction drive.

Referring to Figure 4, the loading bucket 4 is in the shape of a dustpan, and rotating star wheels 19 are installed on both sides of the loading bucket 4, and the scraper is installed in the opening between the two rotating star wheels 19. Front end of board conveyor 8.

The mining mechanism 2 adjusts the up and down and front and rear positions of the mining mechanism 2 through the hydraulic lifting device 6 of the mining mechanism and the pulling of the steel wire rope through the pulley winch and the telescopic hydraulic device 3 of the mining mechanism, and then performs drilling from top to bottom to mine the coal seam. The lower coal lumps fall into the dustpan-shaped loading bucket 4 under the mining mechanism 2 by gravity, and the coal lumps are scraped to the middle by rotating the rotating star wheels 19 (see FIG. 4 ) on both sides of the loading bucket 4. On the front end of the scraper conveyor 8, the coal block is transported to the front disc-shaped funnel 17 of the belt conveyor 12 through the scraper conveyor 8, and the disc-shaped funnel 17 at the front end of the belt conveyor 12 can ensure that the belt conveyor 12 can be picked up normally when it rotates left and right lump of coal. The belt conveyor 12 is connected to the rear end of the main frame 9 through the belt conveyor lifting mechanism 11 and the belt conveyor rotating mechanism 13; the belt conveyor 12 adjusts the swing height and the left and right deflection position of the belt conveyor rear end through the belt conveyor lifting mechanism 11 and the belt conveyor rotating mechanism 13 , and finally transport the coal to the car or coal storage device. Belt conveyor lifting mechanism 11 and belt conveyor rotating mechanism 13 all adopt hydraulic device to drive or adopt pulley and wire rope transmission, belong to prior art.

The main frame 9 is rotatably installed on the traveling mechanism 10, the rear end of the loading bucket 4 is hinged on the front end of the main frame 9, the scraper conveyor 8 is installed on the main frame 9, and the front end of the scraper conveyor 8 is connected to the rear of the loading bucket 4. End butt joint, the rear end of the scraper conveyor 8 extends above the disc-shaped funnel 17 at the front end of the belt conveyor 12 . The loading bucket 4 is driven by a hydraulic device and can swing up and down. The main frame 9 and its connected parts can be rotated synchronously on the running gear 10 to determine the working level to be mined. The whole machine plays a further stable role.

The mining mechanism 2 and the telescopic hydraulic device 3 of the mining mechanism can move up and down on the forearm 5 .

Claims (5)

1. Subaerial comprehensive winning machine, it is characterized in that: comprise exploitation mechanism, exploitation mechanism telescoping hydraulic device, exploitation mechanism hydraulic lift, shovel bucket, firm hydraulic prop, scratch board conveyor, walking mechanism, belt conveyer, belt conveyer rotation and lifting mechanism and mainframe, mainframe is rotatably installed on the walking mechanism, the rear end of shovel bucket is hinged on the front end of mainframe, and the scraper bowl hydraulic means is housed between this shovel bucket and mainframe; Scratch board conveyor is installed on the mainframe, and the front end of this scratch board conveyor docks with the rear end of shovel bucket, and the rear end of this scratch board conveyor extends to the top of the belt conveyer front end that is positioned at this mainframe rear end; Rotation and lifting mechanism is housed between this belt conveyer and mainframe; Two pairs of firm hydraulic props are housed on the both sides of described mainframe; Described rear end of exploiting mechanism is connected the front end of exploitation mechanism telescoping hydraulic device, this exploitation mechanism telescoping hydraulic device is hinged on the forearm, the bottom of this forearm is fixedly connected on the mainframe, pulley is equipped with on top at this forearm, exploitation mechanism hydraulic lift is housed between exploitation mechanism's telescoping hydraulic device and mainframe, is provided with on the top of exploitation mechanism telescoping hydraulic device via described pulley support and by the wire rope pulling device of pulley winch traction; Described exploitation mechanism laterally is made of side by side a plurality of cutting mechanisms, each cutting mechanism is made of the cutting head that is linked in sequence successively, reductor, clutch protective device and drive motors, corresponding cover reductor, clutch protective device and the drive motors of each cutting head; This cutting head is positioned at front end.

2. Subaerial comprehensive winning machine according to claim 1, it is characterized in that: described shovel bucket is a dust pan shape, both sides in this shovel bucket are equipped with the rotation star-wheel respectively, and the front end of described scratch board conveyor is housed in the opening in the middle of two these rotation star-wheels.

3. Subaerial comprehensive winning machine according to claim 1, it is characterized in that: described belt conveyer rotation and lifting mechanism comprises belt conveyer elevating mechanism and belt conveyer rotating mechanism, this belt conveyer elevating mechanism adopts pulley, each draw-gear transmission of wire rope to form, or adopts the belt conveyer hydraulic means; This belt conveyer rotating mechanism adopts rotary fluid pressure device and connecting rod to connect to form.

4. comprehensive strip coal mining machine according to claim 1, it is characterized in that: the front end of described belt conveyer is equipped with the disk funnel, and its top is corresponding with the rear end of described scratch board conveyor.

5. comprehensive strip coal mining machine according to claim 1, it is characterized in that: the front end of described cutting head is the taper shape of bullet shape, is provided with spiral at side face, is provided with spur between spiral.

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