Telescopic belt conveyor for blast hole filling truck in strip mine field

Abstract

A telescopic belt conveyor for a blast hole filling truck in a strip mine field comprises a fixed machine frame, a driving roller, a receiving hopper, a worm and gear swing mechanism and an angle adjusting oil cylinder, the driving roller, the receiving hopper, the worm and gear swing mechanism and the angle adjusting oil cylinder are arranged at the rear end of the fixed machine frame, linear bearings are arranged at the four corners of the front end face of the fixed machine frame respectively, and a fixed machine frame turnabout roller is arranged below the linear bearings. Four cylindrical rod pieces of the telescopic rack penetrate through the corresponding linear bearings and are matched with the linear bearings, a telescopic rack front end turnabout drum and a discharging hopper are arranged at the front end of the telescopic rack, a telescopic rack rear end turnabout drum is arranged at the rear end of the telescopic rack, and the two ends of a rack telescopic oil cylinder are hinged to the fixed rack and the telescopic rack respectively. The annular conveying belt sequentially surrounds the driving roller, the telescopic rack front end turnabout roller, the telescopic rack rear end turnabout roller and the fixed rack turnabout roller to achieve assembly. The utility model has the characteristics of good maneuvering performance, simple structure, low weight and low manufacturing cost.

Description

Technical Field

[0001] The utility model relates to a belt conveyor, in particular to a telescopic belt conveyor used for a blasthole filling vehicle in an open-pit mine. Background Art

[0002] During open-pit blasting mining, it is necessary to use filling materials such as sand and gravel to fill the blastholes where explosives and detonators have been installed, in order to optimize the blasting effect, improve work efficiency, and enhance work safety. With the widespread application of large-diameter deep-hole blasting technology in open-pit mining, the research and development of high-efficiency and low-cost blasthole filling machinery and equipment adapted thereto has also become important. The use of a large silo and a retractable belt conveyor with a material output function assembled on a car chassis can achieve large-capacity material storage, transportation, and efficient blasthole filling operations. The retractable belt conveyors of the prior art are of two types: one is a belt conveyor that adjusts its own length by setting a storage belt device and a retractable frame, and the other is a belt conveyor that uses two belt conveyors to overlap and stagger to adjust the length of the fuselage. Both have the problems of poor maneuverability, complex structure, high weight and high cost. Utility Model Content

[0003] The utility model aims to solve the above problems and provide a retractable belt conveyor which has good maneuverability, simple structure, low weight and cost and is particularly suitable for use in blasthole filling vehicles in open-pit mines.

[0004] To achieve the above object, the technical solution adopted by the present utility model is as follows: A telescopic belt conveyor for an open-pit mine blast hole stuffing vehicle, including a fixed frame provided with idlers. At the rear end of the fixed frame, there is a driving drum equipped with a hydraulic driving device and a receiving hopper placed above the annular conveyor belt. Below the rear part of the fixed frame, there is a worm and worm gear slewing mechanism. The worm of the worm and worm gear slewing mechanism is directly connected to a worm driving hydraulic motor. The upper end surface of the worm gear of the worm and worm gear slewing mechanism is fixedly connected to a slewing disc. On the slewing disc, there are a pair of vertically arranged ear plates facing upward and a pair of obliquely arranged ear plates inclined forward and downward. The vertically arranged ear plates are hinged to the rear end of the fixed frame, and the obliquely arranged ear plates are hinged to the tailstock of an angle adjustment cylinder. The front end of the piston rod of the angle adjustment cylinder is hinged to the fixed frame. At the four corners of the front end surface of the fixed frame, there are respectively a linear bearing. Below the front end surface of the fixed frame, there is a fixed frame redirecting drum. The telescopic frame is composed of four cylindrical rods equipped with idlers and connecting crossbeams. The four cylindrical rods respectively pass through their corresponding linear bearings and are in cooperation with them. At the front end of the telescopic frame, there are a telescopic frame front redirecting drum and a blanking hopper. At the rear end of the telescopic frame, there is a telescopic frame rear redirecting drum. The tailstock of the frame telescopic cylinder is hinged to an oil cylinder connecting crossbeam arranged on the fixed frame. The front end of the piston rod of the frame telescopic cylinder is hinged to the connecting crossbeam at the rear end of the telescopic frame. The annular conveyor belt is assembled by successively surrounding the driving drum, the telescopic frame front redirecting drum, the telescopic frame rear redirecting drum, and the fixed frame redirecting drum.

[0005] For the above-mentioned telescopic belt conveyor for an open-pit mine blast hole stuffing vehicle, a visual sensor is provided below the blanking hopper.

[0006] For the above-mentioned telescopic belt conveyor for an open-pit mine blast hole stuffing vehicle, an explosion-proof warning lighting lamp is provided at the front end of the blanking hopper.

[0007] The present utility model realizes the telescopic assembly of the telescopic frame and the fixed frame by the cooperation of four cylindrical rods and linear bearings. At the same time, through the cooperation of a driving drum and three redirecting drums arranged in an S shape with the annular conveyor belt, the length of the belt conveyor can be adjusted. It has the characteristics of good maneuverability, simple structure, low weight and cost, and is particularly suitable for being assembled on an open-pit mine blast hole stuffing vehicle as a telescopic belt conveyor for transporting blast hole stuffing materials.

[0008] The present utility model sets a visual sensor below the blanking hopper of the telescopic belt conveyor, and cooperates with a display screen assembled in the cab of the open-pit mine blast hole stuffing vehicle to realize the operation of the blast hole stuffing operation in the cab of the open-pit mine blast hole stuffing vehicle.

[0009] An explosion-proof warning illuminating lamp is arranged at the front end of the telescopic belt conveyor's feeding hopper of the present utility model, which can improve the operation safety performance and improve the operation environment. Brief Description of the Drawings

[0010] Figure 1 is the front view structural schematic diagram of the present telescopic belt conveyor.

[0011] Figure 2 is the top view structural schematic diagram of the present telescopic belt conveyor.

[0012] Figure 3 is the structural schematic axonometric drawing of the present telescopic belt conveyor.

[0013] In the figures: 1, fixed frame; 2, hydraulic drive device; 3, drive roller; 4, endless conveyor belt; 5, receiving hopper; 6, worm and worm gear slewing mechanism; 7, worm-driven hydraulic motor; 8, slewing disc; 9, vertically arranged ear plate; 10, obliquely arranged ear plate; 11, angle adjustment oil cylinder; 12, linear bearing; 13, fixed frame redirecting roller; 14, cylindrical rod; 15, telescopic frame front end redirecting roller; 16, feeding hopper; 17, telescopic frame rear end redirecting roller; 18, frame telescopic oil cylinder; 19, vision sensor; 20, explosion-proof warning illuminating lamp. Detailed Embodiment

[0014] The following combines the drawings to describe the detailed embodiment of the present utility model.

[0015] Such as Figure 1 , Figure 2 and Figure 3, the retractable belt conveyor for an open-pit mine blast hole stuffing vehicle includes a fixed frame 1 equipped with idlers. The idlers include V-shaped upper idlers and parallel lower idlers. The fixed frame 1 is a frame structure with an H-shaped cross-section. The fixed frame in the attached drawing embodiment is designed in a bent form, which is more convenient for vehicle mounting. At the rear end of the fixed frame 1, there is a drive roller 3 equipped with a hydraulic drive device 2 and a receiving hopper 5 placed above the annular conveyor belt 4. The hydraulic drive device 2 is composed of a roller drive hydraulic motor, a reducer, a coupling, and a clutch connected in sequence. Below the rear part of the fixed frame 1, there is a horizontally placed worm and worm gear slewing mechanism 6. The worm of the worm and worm gear slewing mechanism 6 is coaxially connected with the output shaft of a worm drive hydraulic motor 7 fixed on the housing. The upper end face of the worm gear of the worm and worm gear slewing mechanism 6 is fixedly connected to a slewing disc 8. On the slewing disc 8, there are a pair of vertically arranged ear plates 9 facing upward and a pair of obliquely arranged ear plates 10 inclined forward and downward. The vertically arranged ear plates 9 are hinged to the rear end of the fixed frame 1, and the obliquely arranged ear plates 10 are hinged to the tailstock of an angle adjustment oil cylinder 11. The front end of the piston rod of the angle adjustment oil cylinder 11 is hinged to the fixed frame 1. At the four corners of the front end face of the fixed frame 1, linear bearings 12 are respectively fixedly arranged. Below the front end face of the fixed frame 1, a fixed frame redirecting roller 13 is installed through a pair of side plates arranged below the front end of the fixed frame 1. The telescopic frame is composed of four cylindrical rods 14 equipped with idlers and connecting crossbeams. The four cylindrical rods 14 respectively pass through their corresponding linear bearings 12 and are in cooperation with them. The four cylindrical rods 14 in the attached drawing embodiment are formed by two symmetrically arranged horizontally placed U-shaped parts. At the front end of the telescopic frame, there is a telescopic frame front redirecting roller 15 and a blanking hopper 16. At the rear end of the telescopic frame, there is a telescopic frame rear redirecting roller 17. The telescopic frame is driven by a frame telescopic oil cylinder 18 to move forward or backward. The tailstock of the frame telescopic oil cylinder 18 is hinged to an oil cylinder connection crossbeam arranged on the fixed frame 1, and the front end of the piston rod of the frame telescopic oil cylinder 18 is hinged to the connecting crossbeam at the rear end of the telescopic frame. The annular conveyor belt 4 is assembled by successively surrounding the drive roller 3, the telescopic frame front redirecting roller 15, the telescopic frame rear redirecting roller 17, and the fixed frame redirecting roller 13.

[0016] The utility model is assembled on an open-pit mine blast hole stuffing vehicle. By controlling the worm drive hydraulic motor 7, the frame telescopic oil cylinder 18, and the angle adjustment oil cylinder 11, the discharging position of the blanking hopper 16 relative to the blast hole is adjusted. The receiving hopper 5 receives the blast hole stuffing material from the vehicle-mounted bin and sends the blast hole stuffing material into the blast hole through the blanking hopper 16 to complete the blast hole stuffing.

[0017] The retractable belt conveyor for an open-pit mine blast hole stuffing vehicle is provided with a vision sensor 19 at the lower part of the material dropping hopper 16, and by cooperating with a display screen assembled in the cab of the open-pit mine blast hole stuffing vehicle, the blast hole stuffing operation can be completed by operating in the cab of the open-pit mine blast hole stuffing vehicle.

[0018] The retractable belt conveyor for an open-pit mine blast hole stuffing vehicle is provided with an explosion-proof warning illuminating lamp 20 at the front end of the material dropping hopper 16 for safety warning and illumination.

Claims

1. A telescopic belt conveyor for an open-pit blast hole stuffing vehicle, comprising a fixed frame (1) provided with idlers, a driving drum (3) for assembling a hydraulic driving device (2) is arranged at the rear end of the fixed frame (1), and a receiving hopper (5) is arranged above an endless conveyor belt (4), and it is characterized in that: at A worm and worm gear slewing mechanism (6) is provided below the rear part of the fixed frame (1). The worm of the worm and worm gear slewing mechanism (6) is directly connected to a worm driving hydraulic motor (7). The upper end face of the worm gear of the worm and worm gear slewing mechanism (6) is fixedly connected to a slewing disc (8). A pair of vertical ear plates (9) facing upward and a pair of inclined ear plates (10) inclined downward and forward are provided on the slewing disc (8). The vertical ear plates (9) are hinged to the rear end part of the fixed frame (1). The inclined ear plates (10) are hinged to the tailstock of an angle adjustment oil cylinder (11). The front end of the piston rod of the angle adjustment oil cylinder (11) is hinged to the fixed frame (1). Linear bearings (12) are respectively provided at the four corners of the front end face of the fixed frame (1). A fixed frame redirecting roller (13) is provided below the front end face of the fixed frame (1). The telescopic frame is composed of four cylindrical rods (14) for assembling idler rollers and connecting cross beams. The four cylindrical rods (14) respectively penetrate through the corresponding linear bearings (12) and are in fit with them. A telescopic frame front end redirecting roller (15) and a blanking hopper (16) are provided at the front end of the telescopic frame. A telescopic frame rear end redirecting roller (17) is provided at the rear end part of the telescopic frame. The tailstock of a frame telescopic oil cylinder (18) is hinged to an oil cylinder connecting cross beam provided on the fixed frame (1). The front end of the piston rod of the frame telescopic oil cylinder (18) is hinged to the connecting cross beam at the rear end of the telescopic frame. The annular conveyor belt (4) is assembled by successively surrounding the driving roller (3), the telescopic frame front end redirecting roller (15), the telescopic frame rear end redirecting roller (17), and the fixed frame redirecting roller (13).

2. The retractable belt conveyor for an open-pit mine blast hole stuffing vehicle according to claim 1, characterized in that: A vision sensor (19) is provided below the blanking hopper (16).

3. The retractable belt conveyor for the blast hole stuffing vehicle in the open-pit mine according to claim 1, characterized in that: An explosion-proof warning lighting lamp (20) is provided at the front end of the blanking hopper (16).

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