CN211594042U - Crawler-type self-moving tail for telescopic adhesive tape machine - Google Patents

Abstract

A crawler-type self-moving tail for a telescopic belt conveyor belongs to coal mining machinery matching equipment, is connected with a movable bendable belt type reversed loader, and consists of an end assembly, a turnabout drum, a frame, a crawler traveling mechanism, a pin rack and a rubber belt; the end assembly is connected with the rack, the rack is formed by connecting a plurality of sections of rigid frame units end to end, the rigid frame unit connected with the end assembly is provided with a turnabout drum, and the rest rigid frame units are provided with carrier rollers. The utility model discloses with the cooperation of shortwall working face continuous mining system, realize collecting machine, electricity, liquid and long-range centralized control in an organic whole, improved coal mining efficiency, reduce artifical the input, improved the operation security.

Description

Crawler-type self-moving tail for telescopic adhesive tape machine

Technical Field

The invention belongs to coal mining machinery, and particularly relates to a continuous mining system and a mining operation method for a short-wall working face of an underground coal mine. The method is used for short-wall mechanized mining of underground coal mines.

Background

There are two types of conventional shortwall mining processes. One type is blasting type mining, the mechanization degree is low, the resource recovery rate is low, the operation safety is poor, the influence on the normal production and life of human beings on the ground is large, and the application is limited in China. The other method is that a plurality of devices such as a continuous miner, a shuttle car, a feeding crusher and the like are used in cooperation with operators, the devices are distributed, the shuttle car is moved back and forth to perform alternate operation, the production is discontinuous, the cooperation is difficult, the efficiency is not high, the uniform control is difficult to realize, the one-time underground mining depth of the continuous miner does not exceed 10m, a large number of branch roadways need to be excavated, and the excavation and supporting workload is large.

The Chinese patent application No. 201510606685.9 discloses a self-moving tail of a belt conveyor in a coal mine, which solves the problems of short material receiving stroke, large occupied space, difficult movement and long auxiliary time of the belt conveyor in the coal mine, but can not meet the moving speed and safety problems in the matched production of a short-wall working face continuous mining system integrating coal cutting, moving walking, coal charging, transferring and automatic control.

Disclosure of Invention

The problems that a material receiving stroke of the underground coal mine belt conveyor is short, occupied space is large, moving is difficult, and auxiliary time is long are solved, so that moving speed and safety of the belt conveyor are improved. The utility model provides a with collect cut coal, remove walking, coal charging, transportation, automatic control in the scalable sticky tape machine of the continuous mining system complex crawler-type self-advancing tail of short wall working face of an organic whole.

The crawler-type self-moving tail of the telescopic adhesive tape machine is connected with the movable bendable belt type reversed loader; the crawler-type self-moving tail is characterized by comprising an end assembly, a turnabout drum, a rack, a crawler traveling mechanism, a pin rack and an adhesive tape; the end head assembly is connected with the rack; the frame is formed by connecting a plurality of sections of rigid frame units end to end through pin shafts; a turnabout drum is arranged on the rigid frame unit connected with the end head assembly, and supporting rollers are arranged on the rest rigid frame units; each 4-5 sections of rigid frame units are provided with a group of crawler belt travelling mechanisms, the crawler belt travelling mechanisms are positioned on two sides of the rigid frame units, pin racks are fully paved on two sides above each rigid frame unit, and the pin racks are connected with lug plates on two sides of each rigid frame unit through pins; the adhesive tape is wound on the turnabout drum and the carrier roller;

the end head assembly consists of an end head frame, a slope transition section, a hydraulic cylinder, a hydraulic platform and a centralized control platform; the hydraulic platform and the centralized control platform are positioned on two sides of the end head frame, the slope transition section is obliquely arranged and positioned at the front part of the end head frame, the hydraulic cylinder controls the lifting of the slope transition section, one end of the hydraulic cylinder is connected with the end head frame, and the other end of the hydraulic cylinder is connected with the slope transition section;

a hydraulic pump station and an operating valve are arranged in the hydraulic platform, and the hydraulic pump station provides power for the oil cylinder and a hydraulic motor of the crawler traveling mechanism;

the centralized control platform consists of a driving seat, an explosion-proof computer, a display and a centralized operation panel;

a driving position, an explosion-proof computer, a display and a centralized operation panel are arranged in the centralized control platform; the driving seat is fixed behind the centralized control platform, and the explosion-proof computer is arranged in front of the centralized control platform; the display is arranged above the explosion-proof computer, and the centralized operation panel is arranged right opposite to the driving position and is positioned above the explosion-proof computer; the explosion-proof computer is connected with the display and the centralized operation panel.

The utility model is matched with a shortwall working face continuous mining system which integrates coal cutting, moving walking, coal loading, transferring and automatic control, thereby realizing that a driver remotely operates the continuous coal mining machine by observing video pictures in a display on a centralized control platform, cuts coal and transfers the coal to a movable flexible adhesive tape transfer conveyor, ensuring the mining direction according to an inertial navigation positioning and orienting system, and ensuring the mining depth to be 90 m; the equipment control is completely finished in the centralized control platform, and the protective area is positioned in a branch roadway far away from the working surface, so that the safety of personnel operation is ensured; the coal mining efficiency is improved, and the manual investment is reduced; the coal cutting, moving and traveling, coal loading, transferring and automatic control are integrated, the independent directional excavation and remote control mode is adopted, parallel and continuous operation of excavation, transferring and transportation is achieved, and the problems of incomplete matching, insufficient transportation capacity and poor personnel operation environment after the existing short-wall mining process equipment are solved.

Drawings

Fig. 1 is a block diagram of a continuous miner in a shortwall face continuous mining system.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a block diagram of a mobile flexible belt loader in a shortwall face continuous mining system.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a partial (front) structural view of the mobile flexible belt type transfer machine.

Fig. 6 is a top view of fig. 4.

Fig. 7 is a view from a-a in fig. 5.

Fig. 8 is a structural diagram of the crawler-type self-moving tail for the retractable adhesive tape machine of the present invention.

Fig. 9 is a top view of fig. 6.

Fig. 10 is a block diagram of a centralized control platform.

FIG. 11 is a schematic view of a shortwall face continuous mining system operation (single wing).

Fig. 12 is a schematic view of a shortwall face continuous mining system operation (twin wings).

Fig. 13 is a structural view of the receiving mechanism.

Fig. 14 is a top view of fig. 13.

Fig. 15 is a structural view of a flexible chassis.

Fig. 16 is a top view of fig. 15.

Fig. 17 is a structural view of the discharge mechanism.

Fig. 18 is a top view of fig. 17.

Fig. 19 is a block diagram of a header assembly.

Fig. 20 is a top view of fig. 19.

In the figure, 1, a cutting part, 2, a loading shovel plate, 3, a crawler traveling chassis, 4, a scraper conveyer, 5, an inertial navigation positioning and orientation system, 6, an explosion-proof camera, 7, a receiving mechanism, 8, a flexible frame, 9, a discharging mechanism, 10, a flexible adhesive tape, 11, a rear power platform, 12, an end assembly, 13, a redirection roller, 14, a frame, 15, a crawler traveling mechanism, 16, a pin rack, 17, a driving position, 18, an explosion-proof computer, 19, a display, 20, a centralized operation panel 21, an adhesive tape, 22, a coal bed, 23, a mining cave, 24, a branch lane, 25, a continuous mining system, 26, a centralized control platform, 27, an upper supporting roller, 28, a belt, 29, a conveyer connecting frame, 30, a connecting plate, 31, a vertical support, 32, a transverse support, 33, a lower supporting roller, 34, a pressure plate, 35, an electric roller, 36, a traveling tire, 37, The device comprises a unit frame, 38, a tensioning roller, 39, a tensioning oil cylinder, 40, a steel wheel, 41, a cycloid gear, 42, a hydraulic motor, 43, a cutting roller, 44, a roller, 45, a receiving part frame, 46, a left crawler mechanism, 47, a right crawler mechanism, 48, a buffer carrier roller, 49, a connecting frame, 50, a coal baffle, 51, a spherical sliding bearing, 52, a discharging frame, 53, a slope transition section, 54, a hydraulic cylinder, 55, an end frame, 56 and a hydraulic platform.

Detailed Description

A continuous mining system for the short-wall working face of underground coal mine is composed of continuous coal mining machine, movable flexible belt type reversed loader, caterpillar self-moving tail for telescopic belt type machine, and centralized control platform.

The continuous miner is connected with the mobile bendable belt transfer conveyor, the mobile bendable belt transfer conveyor is connected with the crawler-type self-moving tail for the telescopic adhesive tape machine, and the centralized control platform is fixed at the front end of the crawler-type self-moving tail for the telescopic adhesive tape machine.

As shown in fig. 1 and 2, the continuous miner comprises a cutting part 1, a loading shovel plate 2, a crawler traveling chassis 3, a scraper conveyor 4, an inertial navigation positioning and orienting system 5 and an explosion-proof camera 6.

The cutting part 1 is connected with a crawler walking chassis 3 and is arranged at the forefront of the whole machine; the crawler traveling chassis 3 is arranged below the scraper conveyor 4 and is connected with the cutting part 1, the loading shovel plate 2 and the scraper conveyor 4; the scraper conveyor 4 is arranged in the middle of the whole machine and is connected with the crawler traveling chassis 3; the inertial navigation positioning and orienting system 5 is fixedly arranged on the crawler walking chassis 3, and the explosion-proof camera 6 is fixedly arranged above the cutting part 1 and behind the cutting drum.

The cutting part 1 consists of a cutting drum, a cantilever, a cutting motor and a cutting reducer.

The cutting motor is located inside the cutting cantilever, the cutting decelerator is located in front of the cutting cantilever, and the cutting decelerator is connected with the cutting cantilever. The outer surface of the cutting decelerator is provided with a cutting drum. The cutting motor drives the cutting speed reducer to drive the cutting drum to rotate.

The loading shovel plate 2 is composed of a shovel plate body, a loading motor, a loading speed reducer, a star wheel and a chain wheel, the loading motor is connected with the loading speed reducer, the loading speed reducer drives the star wheel and the chain wheel to rotate, and the loading motor and the loading speed reducer are installed in the shovel plate body.

The crawler traveling chassis 3 comprises a crawler chain, a traveling motor, a traveling reducer, a crawler beam, a driving chain wheel, a guiding tension wheel and an intermediate frame. The walking motor is connected with the walking reducer, the walking reducer is connected with the driving chain wheel, the driving chain wheel is connected with the crawler belt chain, the middle frame is respectively connected with the crawler belt beams on two sides, and the guiding tensioning wheel is arranged at the rear end of the crawler belt beam.

The loading shovel plate 2 is connected with the scraper conveyor 4 through a middle frame to form a front and back lapped conveying groove.

The continuous miner disclosed by the Chinese patent No. 201820227072.3 can be adopted as the continuous miner for the thin coal seam. Except that the inertial navigation positioning and orientation system 5 of the present invention is used to replace the gyro orientation unit of the above patent.

As shown in fig. 3, 4, 5, 6 and 7, the mobile bendable belt type reversed loader comprises a receiving mechanism 7, a bendable frame 8, a discharging mechanism 9, a bendable adhesive tape 10 and a rear power platform 11.

As shown in fig. 13 and 14, the receiving mechanism 7 is composed of a receiving portion frame 45, an electric roller 35, a buffer roller 48, a left crawler 46, a right crawler 47, and a motor, wherein the left crawler 46 and the right crawler 47 are located on two sides of the receiving portion frame 45 and connected to the receiving portion frame 45. The motorized pulley 35 and the buffer roller 48 are mounted on the receiving section frame 45. The motorized pulley 35 is connected to a motor, and the motor drives the motorized pulley 35 to rotate.

As shown in fig. 15 and 16, the bendable frame 8 is composed of a unit frame 37, an upper idler 27, a lower idler 33, a platen 34, a traveling tire 36, a connecting pin, and a spherical sliding bearing 51, wherein the upper and lower idlers 33 are respectively installed at the middle positions of the unit frame 37, and are provided at the upper and lower sides thereof for supporting the bendable adhesive tape. The pressing plates 34 are installed at both sides of the unit frame 37, and are provided at the upper and lower sides thereof, for preventing the bendable adhesive tape from deviating and derailing. The walking tires 36 are arranged in a pair every 2-3 unit frames and are respectively arranged on two sides of the unit frames. The unit frames 37 are connected by spherical sliding bearings 51 and connecting pins, and can swing at a certain angle in the left-right and up-down directions.

As shown in fig. 17 and 18, the discharging mechanism consists of a frame body, an electric roller, a tensioning roller 38, a tensioning oil cylinder 39 and a steel wheel 40. 2 motorized pulley are installed to the support body, arrange in tandem, and the flexible sticky tape is driven together to 2 motorized pulley of shedding mechanism and the motorized pulley of receiving the material mechanism. The middle position of the frame body is provided with a tensioning roller which can move back and forth in the frame body by pushing and pulling of the tensioning oil cylinder, so that the flexible adhesive tape can be tensioned or loosened. The steel wheels are positioned at the bottom of the frame body, 4 in number in front and at the back, and are used for moving on the pin rack 16.

The bendable adhesive tape 10 adopts a bendable fabric laminated flame-retardant conveyor belt for coal mines disclosed by Chinese patent No. 201420663965.4; or 2015106066844 to the mining mobile flexible belt conveyor.

The rear power platform 11 consists of a platform, a hydraulic pump station, an electric cabinet, a driving motor, a cycloid gear 41 and a steel wheel. The hydraulic pump station provides power to the drive motor and then rotates the gerotor gear. The electric cabinet provides power for the motor and the 3 electric rollers of the hydraulic pump station.

The receiving mechanism 7 is connected with the flexible frame 8, the discharging mechanism 9 and the rear power platform 11 in sequence.

The connection mode of the receiving mechanism 7 and the bendable rack 8 is the same as the connection mode of the unit racks by the spherical sliding bearing and the connecting pin, and the receiving mechanism can swing left and right and up and down by a certain angle.

The unit frames are connected by the spherical sliding bearings and the connecting pins in the same way, and can swing left and right and up and down by a certain angle.

The discharging mechanism 9 is provided with 2 electric rollers and 1 tensioning roller. The flexible frame 8 is composed of a plurality of unit frames (each unit frame is 0.65m long) which are connected end to end through a pin shaft and a spherical sliding bearing. Each unit frame is provided with a supporting roller and a pressing plate.

The flexible adhesive tape 10 is wound on the motorized pulley of the receiving mechanism 7, the idler pulley of the flexible rack 8, the motorized pulley of the discharging mechanism 9 and the tensioning pulley.

A plurality of groups of walking tires are arranged below the bendable frame 8. Steel wheels are arranged below the discharging mechanism 9 and the rear power platform 11. Two sides of the bottom of the rear power platform 11 are provided with a pair of cycloidal gears with power.

The receiving mechanism 7 and the traveling tires of the front half part of the flexible frame 8 are positioned on the ground. The running tires of the rear half of the flexible frame 8 are located on the pin rack 16.

The steel wheel below the discharging mechanism 9 and the rear power platform 11 is also positioned on the plane track on the pin rack 16. The cycloidal gear at the bottom of the rear power platform 11 is engaged with the pin rack 16. The movable bendable belt type reversed loader can move back and forth relative to the crawler type self-moving tail of the telescopic adhesive tape machine.

As shown in fig. 8 and 9, the crawler-type self-moving tail for the retractable adhesive tape machine is composed of an end head assembly 12, a direction-changing drum 13, a frame 14, a crawler traveling mechanism 15, a pin rack 16 and an adhesive tape 21.

As shown in fig. 19 and 20, the head assembly 12 is composed of a head frame 55, a slope transition section 53, a hydraulic cylinder 54, a hydraulic platform 56 and a centralized control platform 26. The hydraulic platform 56 and the centralized control platform 26 are located on both sides of the head frame 55. The slope transition section is obliquely arranged and is positioned at the front part of the end head frame. The hydraulic cylinder controls the lifting of the slope transition section. One end of the hydraulic cylinder is connected with the end frame, and the other end of the hydraulic cylinder is connected with the slope transition section.

And a hydraulic pump station and an operating valve are arranged in the hydraulic platform. The hydraulic pump station provides power for the oil cylinder and the hydraulic motor of the crawler traveling mechanism 15.

The head assembly 12 is connected to the frame 14.

The frame 14 is formed by connecting a plurality of rigid frame units (each unit is 3m long) end to end through pin shafts.

The rigid frame unit connected to the head assembly 12 is provided with a direction-changing drum 13, and the rest of the rigid frame units are provided with carrier rollers.

And each 4-5 sections of rigid frame units are provided with a group of crawler belt travelling mechanisms, and the crawler belt travelling mechanisms are positioned on two sides of the rigid frame units. The upper sides of each rigid frame unit are full of pin racks 16. The pin rack 16 is connected with the ear plates at the two sides of the rigid frame unit through pins;

the adhesive tape 21 is wound around the direction-changing drum 13, the idler on the rigid frame unit.

As shown in fig. 10, the centralized control platform 26 is composed of a driver seat 17, an explosion-proof computer 18, a display 19 and a centralized operation panel 20.

The driver seat 17, the explosion-proof computer 18, the display 19 and the centralized operation panel 20 are arranged in the centralized control platform 26. The driving seat 17 is fixed at the rear of the centralized control platform, and the explosion-proof computer 18 is arranged in front of the centralized control platform; the display 19 is arranged above the explosion-proof computer 18, and the centralized operation panel 20 is arranged right opposite to the driving seat 17 and above the explosion-proof computer 18. The explosion-proof computer 18 is connected with a display 19 and a centralized operation panel 20.

The connecting plate 30, the vertical bracket 31 and the horizontal bracket 32 are of an integral structure and all belong to a rigid frame unit.

In the forward coal mining process of the continuous miner, the movable bendable belt type reversed loader can travel along with the continuous miner, so that the receiving mechanism 7 is always positioned below the unloading point of the scraper conveyor 4. In the moving process of the continuous miner, the receiving part mechanism 5 is dragged, so that the mobile bendable belt type reversed loader is dragged to move, and the rear power platform 11 synchronously follows. The crawler-type self-moving tail of the telescopic rubber belt machine is kept in place and is still in the coal mining process.

The bottom of the rear power platform 11 is provided with a cycloidal gear with power, the cycloidal gear is meshed with the pin rack 16 to form traction force, the flexible belt type reversed loader can be pulled to retreat, and synchronous walking with the continuous miner is realized through program control.

Information in the working process of the continuous miner, video in the mining process transmitted back from the explosion-proof camera 6, mining direction and angle (the angle and the position of the information are measured by a gyroscope and an accelerometer), temperature and current parameter data measured by the inertial navigation positioning and orienting system 5 in the mining process can be transmitted to an explosion-proof computer 18 in a centralized control platform, then the data are displayed on a display 19, and personnel remotely control the operation of the continuous miner in a cab 17 through a centralized operation panel 20.

And the gyroscope and the accelerometer are positioned in a module of the inertial navigation positioning and orientation system, the gyroscope is used for measuring the course and the position of the airframe, and the accelerometer is used for measuring the pitching and rolling postures of the airframe. The inertial navigation positioning and orienting system is arranged above a crawler traveling chassis of the continuous miner.

The walking, loading and transporting mechanisms of the continuous miner are all driven by a motor. The cutting drum is driven by a motor to rotate, and the hydraulic oil cylinder is used for realizing the up-and-down swing of the cantilever, so that the cutting function is realized.

The flexible adhesive tape 10 of the movable flexible belt type reversed loader is driven by 1 electric roller of the receiving mechanism 7 and 2 electric rollers of the discharging mechanism 9, and the cycloid gear of the rear power platform 11 is driven by a hydraulic motor.

The crawler traveling mechanism 15 of the crawler-type self-moving tail is driven by a hydraulic motor. The crawler traveling mechanism 15 is a crawler traveling mechanism matched with the existing coal mining machine.

The state information (including video, course and the like) of the continuous miner, the movable bendable belt type reversed loader and the crawler type self-moving tail is transmitted to the explosion-proof computer through the electric control boxes of all the devices, the wired network and then the display. The device action and function control commands sent by the centralized operation panel are sent to the electric control boxes of the devices through wired network signals, and then the actions of the devices are controlled.

The invention relates to a continuous mining system, comprising the following steps:

1. preparation operation: and completing tunneling of the branch roadway in advance. The continuous miner, the mobile bendable belt reversed loader and the crawler type self-moving tail for the telescopic adhesive tape machine are sequentially connected and arranged at the initial position of the system shown in the attached drawing 5, and the length of the up-down lap joint of the mobile bendable belt reversed loader and the crawler type self-moving tail for the telescopic adhesive tape machine is 100 m.

2. An operator operates the centralized operation panel in the centralized control platform through observing the display, operates the continuous miner to move, and the mobile bendable belt type reversed loader synchronously follows. The continuous miner turns left or right, the mining operation is started along the planned mining direction, and the mined coal blocks are transported away.

3. And continuously excavating by using the continuous coal mining machine and the movable bendable belt type reversed loader to finish the planned excavation depth. The shearer and flexible belt conveyor then exit the machine along the original path, returning to the original position.

4. If the system is double-wing mining, the opposite side mining is started, and then the system returns to the initial position. If the single wing mining is carried out, the next step is carried out.

5. The continuous miner, the movable bendable belt type reversed loader and the telescopic belt type self-moving tail move simultaneously (along the arrow direction of the mining sequence in the attached figure 11, 3m-5 m) and retreat to the next mining position. And then the cycle starts the operation of the step 2.

Coal mining: a driver remotely operates the continuous miner on the centralized control platform by observing video pictures in the display, cuts and transfers coal to the movable bendable adhesive tape reversed loader, and the mining direction is guaranteed according to the inertial navigation positioning and orienting system, and the mining depth is 90m at most.

And (3) transportation: the movable flexible belt type reversed loader enters the mining cave following the continuous miner, coal flow is transferred to the movable flexible belt type reversed loader from a conveyor of the continuous miner, and then is unloaded to the belt at the tail of the crawler type self-moving machine for the telescopic belt machine again, coal is transported out, and continuous transportation is achieved.

Removing the machine: after one working face is finished, the continuous miner and the movable bendable belt type reversed loader retreat, then the telescopic rubber belt machine retreats from the tail of the crawler type self-moving machine, then the whole system moves to the next working face, and the next cycle is started.

In the process, all the equipment control is completed in the centralized control platform, and the protection area in the branch lane is located far away from the working face, so that the safety of personnel operation is ensured.

Claims (1)

1. The crawler-type self-moving tail of the telescopic adhesive tape machine is connected with the movable bendable belt type reversed loader; the crawler-type self-moving tail is characterized by comprising an end assembly, a turnabout drum, a rack, a crawler traveling mechanism, a pin rack and an adhesive tape; the end head assembly is connected with the rack; the frame is formed by connecting a plurality of sections of rigid frame units end to end through pin shafts; a turnabout drum is arranged on the rigid frame unit connected with the end head assembly, and supporting rollers are arranged on the rest rigid frame units; each 4-5 sections of rigid frame units are provided with a group of crawler belt travelling mechanisms, the crawler belt travelling mechanisms are positioned on two sides of the rigid frame units, pin racks are fully paved on two sides above each rigid frame unit, and the pin racks are connected with lug plates on two sides of each rigid frame unit through pins; the adhesive tape is wound on the turnabout drum and the carrier roller;

the end head assembly consists of an end head frame, a slope transition section, a hydraulic cylinder, a hydraulic platform and a centralized control platform; the hydraulic platform and the centralized control platform are positioned on two sides of the end head frame, the slope transition section is obliquely arranged and positioned at the front part of the end head frame, the hydraulic cylinder controls the lifting of the slope transition section, one end of the hydraulic cylinder is connected with the end head frame, and the other end of the hydraulic cylinder is connected with the slope transition section;

a hydraulic pump station and an operating valve are arranged in the hydraulic platform, and the hydraulic pump station provides power for the oil cylinder and a hydraulic motor of the crawler traveling mechanism;

the centralized control platform consists of a driving seat, an explosion-proof computer, a display and a centralized operation panel;

a driving position, an explosion-proof computer, a display and a centralized operation panel are arranged in the centralized control platform; the driving seat is fixed behind the centralized control platform, and the explosion-proof computer is arranged in front of the centralized control platform; the display is arranged above the explosion-proof computer, and the centralized operation panel is arranged right opposite to the driving position and is positioned above the explosion-proof computer; the explosion-proof computer is connected with the display and the centralized operation panel.

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