Blast hole filling vehicle for strip mine field

Abstract

The invention relates to a strip mine blast hole filling truck which comprises a V-shaped stock bin, a hydraulic oil pump, a hydraulic oil tank and a hydraulic control box which are arranged on an automobile chassis, a longitudinal two-way belt conveyor is arranged on the lower portion of the V-shaped stock bin, and the V-shaped stock bin is provided with a screen body covering a bin opening in the upper end, discharging gates arranged at the front end and the rear end and vibrators located on the left side and the right side. A transverse belt conveyor provided with a transverse moving mechanism is arranged on the front side of the V-shaped stock bin, a swing oil cylinder is arranged at the rear end of the automobile chassis and connected with a rotating arm, and a worm and gear rotation driving device is arranged at the cantilever end of the rotating arm. And the worm and gear rotary driving device is hinged with the tail end of the telescopic belt conveyor provided with the pitching angle adjusting oil cylinder and the visual sensor. The method is particularly suitable for large-aperture deep hole blasting mining blast hole filling operation in a large strip mine field, the blasting mining efficiency can be effectively improved, the mining cost is reduced, and the blast hole filling operation safety is guaranteed.

Description

Technical Field

[0001] The invention relates to blasthole plugging equipment, in particular to a blasthole plugging vehicle for an open-pit mine. Background Art

[0002] During open-pit blasting mining, it is necessary to use filling materials such as sand, gravel and other filling materials 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. The traditional blasthole filling operation is to unload the filling materials near the blasthole, and workers use simple tools to fill them into the blasthole. Manual blasthole filling operations are not only time-consuming and labor-intensive, but also inefficient and unsafe. The prior art discloses a blasthole filling machine composed of a loader equipped with a funnel or a push plate, a blasthole filling machine composed of a mixing tank truck equipped with a funnel, and a blasthole filling machine composed of a vehicle-mounted storage hopper equipped with a discharge pipe, which can replace the manual blasthole filling operation. However, with the widespread application of large-aperture deep hole blasting technology in open-pit mining, the blasthole filling machine of the above-mentioned prior art can no longer meet the high-efficiency and low-cost mining production requirements of large open-pit mines. Summary of the invention

[0003] The purpose of the present invention is to provide an open-pit mine blasthole filling vehicle, which adopts a vehicle-mounted mechanical operation mode to replace the manual blasthole filling operation and can meet the high-efficiency and low-cost mining production requirements of large open-pit mines.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: an open-pit mine blasthole filling vehicle, including a vehicle chassis, a V-shaped silo with a rectangular horizontal cross-section is connected to the vehicle chassis through spring supports distributed on the left and right sides of the vehicle chassis, a bidirectional belt conveyor is provided at the lower part of the V-shaped silo longitudinally penetrating the V-shaped silo, and discharge gates corresponding to the bidirectional belt conveyor are respectively provided at the front and rear ends of the V-shaped silo, and a transverse belt conveyor is provided at the front side of the V-shaped silo corresponding to the front end discharge hopper of the bidirectional belt conveyor, and the transverse belt conveyor is equipped with a transverse moving mechanism, and a swing cylinder is provided at the rear end of the vehicle chassis, and the vertical central rotating shaft of the swing cylinder is connected to the rotating arm, and a worm gear rotary drive device is provided at the cantilever end of the rotating arm, and the worm gear rotary disk of the worm gear rotary drive device is hingedly connected to the tail end of the telescopic belt conveyor, and the receiving hopper of the telescopic belt conveyor is located below the bidirectional belt conveyor and corresponds to the discharge hopper at the rear end of the bidirectional belt conveyor. A pitch angle adjustment cylinder for adjusting the pitch angle of the telescopic belt conveyor is provided below the tail of the telescopic belt conveyor, visual sensors are respectively installed at the head of the telescopic belt conveyor and the head of the transverse belt conveyor, a pair of screen bodies consisting of a frame and a screen are provided at the upper end of the V-shaped silo, the two screen bodies cover the upper end of the V-shaped silo, the outer frames of the two screen bodies corresponding to the V-shaped silo are hingedly connected to the V-shaped silo, a pair of screen body rotation cylinders for driving the screen body to rotate around the screen body hinge axis are respectively provided at the front and rear ends of the V-shaped silo, and hydraulic vibrators are respectively provided on the left and right sides of the V-shaped silo; the bidirectional belt conveyor, the discharge gate, the transverse belt conveyor, the transverse moving mechanism, the worm gear rotary drive device, and the telescopic belt conveyor are hydraulically driven, and a hydraulic oil pump, a hydraulic oil tank and a hydraulic control box connected by hydraulic pipelines are provided on the chassis of the vehicle, and the driving shaft of the hydraulic oil pump is connected to the output shaft of the power take-off of the chassis of the vehicle.

[0005] The above-mentioned lateral movement mechanism includes a pair of grooved tracks arranged on the chassis of the automobile via a bracket, the grooves of the two grooved tracks are arranged relatively parallel, rollers placed in the grooves of the two grooved tracks are distributed on the lower parts of both sides of the lateral belt conveyor, and lateral belt conveyor moving cylinders are respectively provided on both sides of the lateral belt conveyor, and the two ends of the two lateral belt conveyor moving cylinders are respectively hinged to the bracket and the frame of the lateral belt conveyor.

[0006] The above-mentioned retractable belt conveyor includes a fixed frame on which rollers are assembled, a driving roller on which a hydraulic drive device is assembled is provided at the tail end of the fixed frame, a linear bearing is respectively arranged at the four corners of the front end of the fixed frame, and a fixed frame redirecting roller is arranged thereunder, the telescopic frame is composed of four cylindrical rods on which rollers and connecting beams are assembled, the four cylindrical rods respectively penetrate the corresponding linear bearings, the front end of the telescopic frame is provided with a telescopic frame front end redirecting roller, the rear end of the telescopic frame is provided with a telescopic frame rear end redirecting roller, the cylinder bottom of the telescopic frame cylinder is hingedly connected to the fixed frame, the front end of the piston rod of the telescopic frame cylinder is hingedly connected to the connecting beam at the rear end of the telescopic frame, and an endless belt is assembled around the driving roller, the front end redirecting roller of the telescopic frame, the rear end redirecting roller of the telescopic frame, and the fixed frame redirecting roller in sequence.

[0007] Beneficial effects of the present invention: 1. By setting up a V-shaped silo on the chassis of the car, it is possible to store and transport large-capacity blasthole filling materials. At the same time, the screen body set at the upper end of the V-shaped silo and the hydraulic vibrators placed on both sides of the V-shaped silo can screen the blasthole filling materials; 2. The bidirectional belt conveyor can realize the forward and backward output of the blast hole filling materials in the V-shaped silo, and by starting the transverse belt conveyor placed at the front of the vehicle chassis or starting the retractable belt conveyor placed at the rear of the vehicle chassis, the multi-point blast hole filling operation on one side of the filling vehicle and behind the filling vehicle can be realized; 3. The present invention is particularly suitable for large-diameter deep hole blasting mining blasthole filling operations in large open-pit mines, which can effectively improve the blasting mining efficiency, reduce mining costs, and ensure the safety of blasthole filling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the main structure of the blasthole filling vehicle in this open-pit mine.

[0009] Figure 2 This is a schematic axonometric diagram of the structure of the blasthole filling vehicle in this open-pit mine.

[0010] Figure 3 It is a schematic axonometric diagram of the structure of the blasthole filling vehicle for the open-pit mine after the retractable belt conveyor is folded.

[0011] Figure 4 It is a schematic axonometric diagram of the assembly structure of the lateral moving mechanism and the lateral belt conveyor of the blasthole filling vehicle in this open-pit mine.

[0012] Figure 5 This is a schematic diagram of the main structure of the retractable belt conveyor of the blasthole filling vehicle in the open-pit mine.

[0013] Figure 6This is a schematic axonometric diagram of the retractable belt conveyor structure of the blasthole filling vehicle in this open-pit mine.

[0014] In the figure: 1. Automobile chassis; 2. Spring support; 3. V-shaped silo; 4. Bidirectional belt conveyor; 5. Discharging gate; 6. Horizontal belt conveyor; 7. Horizontal moving mechanism; 8. Swinging cylinder; 9. Rotating arm; 10. Worm gear rotary drive device; 11. Telescopic belt conveyor; 12. Pitch angle adjustment cylinder; 13. Visual sensor; 14. Screen body; 15. Screen body rotating cylinder; 16. Hydraulic vibrator; 17. Hydraulic oil pump; 18. Hydraulic Oil pressure tank; 19, hydraulic control box; 71, bracket; 72, grooved track; 73, roller; 74, horizontal belt conveyor moving cylinder; 111, fixed frame; 112, hydraulic drive device; 113, driving roller; 114, linear bearing; 115, fixed frame redirecting roller; 116, cylindrical rod; 117, telescopic frame front end redirecting roller; 118, telescopic frame rear end redirecting roller; 119, telescopic frame cylinder; 1110, endless belt. DETAILED DESCRIPTION

[0015] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0016] like Figure 1 , Figure 2 and Figure 3The open-pit mine blasthole filling vehicle includes a vehicle chassis 1, which is a second-class chassis. A V-shaped silo 3 is connected to the vehicle chassis 1 through spring supports 2 distributed on the left and right sides of the vehicle chassis 1. The horizontal cross-section of the V-shaped silo 3 is rectangular. The V-shaped silo 3 is provided with longitudinal and transverse connecting rods at the upper end and a transverse connecting rib plate at the lower part. The left and right sides of the V-shaped silo 3 are provided with reinforcing rib plates. Four spring supports 2 are symmetrically arranged on the left and right sides of the vehicle chassis 1. A bidirectional belt conveyor 4 is provided longitudinally through the lower part of the V-shaped silo 3. The rollers at both ends of the bidirectional belt conveyor 4 are respectively equipped with clutches and driving devices for realizing selective bidirectional material transportation. Discharge ports corresponding to the bidirectional belt conveyor 4 are provided at the front and rear ends of the V-shaped silo 3, respectively, and are equipped with a discharge gate 5. The discharge gate 5 is composed of a driving mechanism and a plug-in mechanism. The driving mechanism is a vertically connected plug-in lifting cylinder. The plug-in mechanism is composed of slideways vertically arranged on both sides of the discharge port of the V-shaped silo 3 and plug-ins installed on the slideways. A transverse belt conveyor 6 is provided at the front side of the V-shaped silo 3 corresponding to the front end discharge hopper of the bidirectional belt conveyor 4. The transverse belt conveyor 6 is equipped with a transverse moving mechanism 7. The transverse belt conveyor 6 receives the blast hole filling material output from the front end of the bidirectional belt conveyor 4 and conveys it to the left side of the automobile chassis 1 to complete the unloading. The transverse moving mechanism 7 is used to drive the transverse belt conveyor 6 to move to the left side of the automobile chassis 1 to achieve the adjustment of the transverse unloading point. A vertical swing cylinder 8 is provided at the rear end of the automobile chassis 1. The swing cylinder 8 is a spiral swing cylinder. The upper and lower ends of the central rotating shaft of the swing cylinder 8 are connected to a rotating arm 9 via flanges. A worm gear rotating drive device 10 is provided on the cantilever end of the rotating arm 9. The worm gear turntable of the worm gear rotating drive device 10 is hingedly connected to the tail end of a telescopic belt conveyor 11. The receiving hopper of the telescopic belt conveyor 11 is located below the bidirectional belt conveyor 4 and corresponds to the rear end discharge hopper of the bidirectional belt conveyor 4. A pitch angle adjustment device for adjusting the pitch angle of the telescopic belt conveyor 11 is provided below the tail of the telescopic belt conveyor 11. The pitch angle adjustment cylinder 12, in this embodiment, a fixed seat is fixedly arranged at the middle part of the rear end of the automobile chassis 1, the shell of the swing cylinder 8 is fixedly connected to the fixed seat, and at the same time, a connecting seat is fixedly arranged on the upper end of the worm wheel turntable of the worm gear rotary drive device 10, the connecting seat has a pair of ear plates vertically upward and a pair of ear plates extending laterally downward, the pair of ear plates vertically upward are hinged to the fixed frame of the telescopic belt conveyor 11, the pair of ear plates extending laterally downward are hinged to the cylinder seat end of the pitch angle adjustment cylinder 12, and the piston rod of the pitch angle adjustment cylinder 12 is hinged to the fixed frame of the telescopic belt conveyor 11 through the earring.The retractable belt conveyor 11 receives the blasthole filling material output from the rear end discharge hopper of the bidirectional belt conveyor 4 through the receiving hopper at the rear end of the machine, and conveys it to the corresponding blasthole at the head of the retractable belt conveyor 11 for blasthole filling. By adjusting the length and horizontal rotation angle of the retractable belt conveyor 11, the blasthole filling operation in the fan-shaped annular area covered by it can be realized. By adjusting the pitch angle of the retractable belt conveyor 11 using the pitch angle adjustment cylinder 12, the vertical distance of the drop hopper of the retractable belt conveyor 11 relative to the blasthole filling operation can be realized. For example. Figure 3 The swing cylinder 8 drives the rotating arm 9 to rotate 90° to the left side of the automobile chassis 1, and the worm gear rotary drive device 10 drives the retractable belt conveyor 11 to rotate to the left side of the automobile chassis 1, and adjusts the pitch angle of the retractable belt conveyor 11 downward through the pitch angle adjustment cylinder 12, so that the front part of the retractable belt conveyor 11 is located on the support plate set on the left side of the automobile chassis 1, thereby realizing the folding of the retractable belt conveyor 11 and meeting the safety requirements of the vehicle on the road. Visual sensors 13 are respectively installed at the head of the retractable belt conveyor 11 and the head of the transverse belt conveyor 6, and a display screen electrically connected to the visual sensor 13 through a data cable is set in the cab of the automobile chassis 1. A pair of sieve bodies 14 consisting of a frame and a screen are provided at the upper end of the V-shaped silo 3. The two sieve bodies 14 cover the upper end of the silo 3. The outer frames corresponding to the two sieve bodies 14 and the V-shaped silo 3 are hingedly connected to the V-shaped silo 3. After the two sieve bodies 14 in the embodiment of the attached drawings cover the upper end of the silo 3, the inner frames of the two sieve bodies 14 are higher than the outer frames and are in an inclined state. At the same time, the outer frames hingedly connected to the V-shaped silo 3 are connected with a material blocking plate extending obliquely outward and upward to prevent the stuffing materials from scattering out of the silo during the screening process. A pair of sieve body rotating cylinders 15 are provided at the front and rear ends of the V-shaped silo 3 to drive the sieve body 14 to rotate around the sieve body hinge shaft. The two sieve bodies 14 are driven to rotate by the four sieve body rotating cylinders 15 to remove the over-diameter stuffing materials trapped on the two sieve bodies 14. Hydraulic vibrators 16 are respectively provided on the left and right sides of the V-shaped silo 3 to ensure smooth screening of the stuffing materials and smooth feeding to the bidirectional belt conveyor 4. The bidirectional belt conveyor 4, the transverse belt conveyor 6, the transverse moving mechanism 7, the worm gear rotary drive device 10, and the telescopic belt conveyor 11 are hydraulically driven. A hydraulic oil pump 17, a hydraulic oil tank 18, and a hydraulic control box 19 connected via hydraulic pipelines are provided on the automobile chassis 1. The driving shaft of the hydraulic oil pump 17 is connected to the output shaft of the power take-off of the automobile chassis 1.

[0017] like Figure 4 The lateral moving mechanism 7 of the open-pit mine blasthole filling vehicle includes a pair of grooved rails 72 arranged on the vehicle chassis 1 via a bracket 71, the two grooved rails 72 are two grooved steel rails with grooves relatively parallel to each other, rollers 73 are arranged in the grooves of the two grooved rails 72 at the lower parts of both sides of the lateral belt conveyor 6, and horizontally placed lateral belt conveyor moving cylinders 74 are respectively provided on both sides of the lateral belt conveyor 6, the tail seat of the lateral belt conveyor moving cylinder 74 is hinged to the bracket 71, and the piston rod of the lateral belt conveyor moving cylinder 74 is hinged to the frame of the lateral belt conveyor 6 via an earring.

[0018] like Figure 5 , Figure 6 The telescopic belt conveyor 11 of the open-pit mine blasthole filling vehicle includes a fixed frame 111 equipped with rollers, a driving roller 113 equipped with a hydraulic drive device 112 is provided at the tail end of the fixed frame 111, a straight bearing 114 is respectively provided at the four corners of the front end of the fixed frame 111, and a fixed frame redirecting roller 115 is provided below the fixed frame 111, and the telescopic frame is composed of four cylindrical rods 116 equipped with rollers and connecting beams, and the four cylindrical rods 116 respectively penetrate the corresponding The linear bearing 114 is assembled, the front end of the telescopic frame is provided with a telescopic frame front end redirection roller 117, the rear end of the telescopic frame is provided with a telescopic frame rear end redirection roller 118, the cylinder bottom of the telescopic frame oil cylinder 119 is hinged to the middle of the oil cylinder connecting beam set on the fixed frame 111, the front end of the piston rod of the telescopic frame oil cylinder 119 is hinged to the connecting beam at the rear end of the telescopic frame through an earring, and the four cylindrical rods 116 of the embodiment of the attached drawing are formed by two symmetrically arranged horizontal U-shaped pieces. The endless belt 1110 is sequentially surrounded by the driving roller 113, the telescopic frame front end redirection roller 117, the telescopic frame rear end redirection roller 118, and the fixed frame redirection roller 115 to realize the assembly of the endless belt 1110.

[0019] The open-pit mine blasthole filling vehicle is equipped with explosion-proof lamps at the head of the telescopic belt conveyor 11 and the transverse belt conveyor 6 for warning and lighting.

[0020] The open-pit mine blasthole filling vehicle can use a loader to load materials, start the hydraulic vibrator 16, and realize the vibration of the screen body 14 under the cooperation of the spring support 2, complete the screening of the blasthole filling materials and improve the screening efficiency. After the blasthole filling materials are screened, the screen body rotating cylinder 15 is started to remove the over-diameter filling materials trapped on the screen body 14. After the blasthole filling vehicle enters the open-pit mine, it can choose to discharge the material from the front side or discharge the material from the rear side for blasthole filling operation according to the arrangement of the blastholes. When the front side discharge is selected, the lateral moving mechanism 7 is used to make the lateral belt conveyor 6 move horizontally to the blasthole point, and then the discharge gate 5 located at the front end is opened, and at the same time, the bidirectional belt conveyor 4 is started to transport the blasthole filling material to the lateral belt conveyor 6 to perform the front side discharge blasthole filling operation; when the rear discharge is selected, the worm gear rotary drive device 10 can be used to drive the telescopic belt conveyor 11 to rotate horizontally, and at the same time, the telescopic frame oil cylinder 119 is started to adjust the length of the telescopic belt conveyor 11, and the pitch angle adjustment oil cylinder 12 is used to adjust the pitch angle of the telescopic belt conveyor 11, so as to complete the unloading point of the telescopic belt conveyor 11 relative to the blasthole, and then the discharge gate 5 located at the rear end is opened, and at the same time, the telescopic belt conveyor 11 is started to perform the rear discharge blasthole filling operation.

Claims

1. A blasthole filling vehicle for an open-pit mine, comprising a vehicle chassis (1), characterized in that: The automobile chassis (1) is provided with a V-shaped silo (3) having a rectangular horizontal cross section, connected to spring supports (2) distributed on the left and right sides of the automobile chassis (1); a bidirectional belt conveyor (4) is provided longitudinally through the lower part of the V-shaped silo (3); discharge gates (5) corresponding to the bidirectional belt conveyor (4) are provided at the front and rear ends of the V-shaped silo (3); a transverse belt conveyor (6) is provided at the front side of the V-shaped silo (3) corresponding to the front discharge hopper of the bidirectional belt conveyor (4); the transverse belt conveyor (6) is equipped with a transverse moving mechanism (7); A swing cylinder (8) is provided at the rear end of the chassis (1); a vertical central rotary shaft of the swing cylinder (8) is connected to a rotating arm (9); a cantilever end of the rotating arm (9) is provided with a worm gear rotary drive device (10); a worm gear turntable of the worm gear rotary drive device (10) is hingedly connected to the tail end of a telescopic belt conveyor (11); a receiving hopper of the telescopic belt conveyor (11) is located below the bidirectional belt conveyor (4) and corresponds to a discharging hopper at the rear end of the bidirectional belt conveyor (4); and a control device for adjusting the telescopic belt conveyor (11) is provided below the tail end of the telescopic belt conveyor (11). A pitch angle adjustment cylinder (12) is provided for adjusting the pitch angle of the machine (11); a visual sensor (13) is installed at the head of the telescopic belt conveyor (11) and the head of the transverse belt conveyor (6); a pair of screen bodies (14) composed of a frame and a screen are provided at the upper end of the V-shaped silo (3); the two screen bodies (14) cover the upper end of the silo (3); the two screen bodies (14) and the outer side frames corresponding to the V-shaped silo (3) are hingedly connected to the V-shaped silo (3); a pair of screen bodies (14) are respectively provided at the front and rear ends of the V-shaped silo (3) to drive the screen body (14) so ​​as to hinge the screen body A screen body rotating cylinder (15) is provided which rotates around an axis, and hydraulic vibrators (16) are provided on the left and right sides of the V-shaped silo (3). The bidirectional belt conveyor (4), the discharge gate (5), the transverse belt conveyor (6), the transverse moving mechanism (7), the worm gear rotary drive device (10), and the telescopic belt conveyor (11) are hydraulically driven. A hydraulic oil pump (17), a hydraulic oil tank (18), and a hydraulic control box (19) which are connected via hydraulic pipelines are provided on the automobile chassis (1), and the driving shaft of the hydraulic oil pump (17) is connected to the output shaft of the power take-off of the automobile chassis (1).

2. The open-pit mine blasthole filling vehicle according to claim 1 is characterized by: The transverse moving mechanism (7) comprises a pair of grooved rails (72) arranged on the automobile chassis (1) via a bracket (71), the grooves of the two grooved rails (72) being arranged relatively parallel, rollers (73) arranged in the grooves of the two grooved rails (72) are distributed at the lower part of both sides of the transverse belt conveyor (6), and transverse belt conveyor moving cylinders (74) are respectively arranged on both sides of the transverse belt conveyor (6), and the two ends of the two transverse belt conveyor moving cylinders (74) are respectively hingedly connected to the bracket (71) and the frame of the transverse belt conveyor (6).

3. The open-pit mine blasthole filling vehicle according to claim 1, characterized in that: The telescopic belt conveyor (11) comprises a fixed frame (111) equipped with rollers, a driving roller (113) equipped with a hydraulic drive device (112) is provided at the rear end of the fixed frame (111), a linear bearing (114) is provided at each of the four corners of the front end of the fixed frame (111), and a fixed frame redirecting roller (115) is provided below the linear bearing, the telescopic frame is composed of four cylindrical rods (116) equipped with rollers and connecting beams, the four cylindrical rods (116) respectively penetrate the corresponding linear bearings (114), and the telescopic frame is provided with a plurality of cylindrical rods (116) connected to the cross beams. A telescopic frame front end redirecting roller (117) is provided at the front end of the frame, a telescopic frame rear end redirecting roller (118) is provided at the rear end of the telescopic frame, a cylinder bottom of a telescopic frame oil cylinder (119) is hinge-connected to the fixed frame (111), a piston rod front end of the telescopic frame oil cylinder (119) is hinge-connected to a connecting crossbeam at the rear end of the telescopic frame, and an endless belt (1110) is assembled around the driving roller (113), the telescopic frame front end redirecting roller (117), the telescopic frame rear end redirecting roller (118), and the fixed frame redirecting roller (115) in sequence.

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