Complex for lifting dump-trucks to flank of opencast

FIELD: transport engineering; quarry dump-trucks.

SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks, namely, to complexes for lifting and lower dump-trucks at opencast mining. Proposed device for lifting dump-truck to flank of opencast contains, in addition to lifting line, lowering line parallel to lifting line, both lines being coupled by drive sprockets in head and middle parts of both lines. Each gripping device for gripping and transporting of dump-trucks up and down is made in form twin levers with rollers hinge-connected two leaf-and-roller chains and arranged in between to provide movement of roller along guides. Platform is secured on levers to arranged rear wheels of dumps-truck on lifting line and front wheels, on lowering line. Platform is arranged with clearances over tracks and on lifting line it is provided with curvilinear stop from side of tension sprocket for engagement with rear wheel of dump-truck, and on lowering line it is provided with two stops for arrangement of front wheels of dump-truck between the stops. Tracks on inclined sections are arranged to move front wheels on lifting line and rear wheels on lowering line at horizontal position of dump-trucks. Lips are arranged in opencast and on its flank in zones of entry of dump-trucks on lifting line and lowering line over tension and drive sprockets, and guides for traction chains and rollers of levers are made curvilinear to provide free getting of dump-truck wheels onto tracks.

EFFECT: provisions of lifting of loaded dump-trucks to flank of opencast and simultaneous lowering of empty-trucks into opencast at continuous transportation and reduced to minimum metal usage and energy consumption when carrying out said operation.

3 cl, 6 dwg

 

The invention relates to systems career of transport, and in particular to systems for ascent and descent of trucks in the quarry in the conduct of surface mining.

The known device for lifting railway wagons and trucks on Board career and their descent into the pit containing the trolley on wheels with the possibility of placing rolling stock and move on inclined rails, ropes, ropes around the blocks, the balances on the go rail, drives pulleys (Demidov J.V., Trubetskoy, NICHOLAS, S. Naumov Use of inclined lifts for transportation of lumpy rock mass in deep pits inside the Arctic circle. Mining journal, No. 7, 1998, pp.42-453).

However, the disadvantages of the known devices are limited in performance caused by the cyclical nature of the work, the design complexity, high specific intensity and energy transportation of rock from the quarry.

Known groovitude vertically closed conveyor (prototype)containing plate-roller traction chain with the possibility of rounding it to the drive and idler sprockets and move the driving rollers of the chain guides, consisting of a slope and the adjacent horizontal sections in the lower and upper parts of the conveyor, the chain is a certain step pinned fists with the possibility of their interaction with the transported during the Assembly of cars, moved on its own wheels on special tracks placed with the outer sides of the rails running rollers (Spivakovsky S.A., Dyachkov VK Transporting machines, Meters, machinery, 1968, s-312, RIS, b).

A disadvantage of the known groovepusher pipeline is the inability transportation of loaded trucks on Board career due to unloading of the rock mass from the body of a dump truck at a substantial angle of inclination of the route of transportation and the increase of metal and energy consumption while lowering trucks in the quarry.

The technical result of the invention is the provision of lifting the loaded trucks from the quarry on the Board of career and simultaneous descent of empty cars trucks in the quarry during the continuous mode of transportation and to minimize the indicators of metal and energy when performing these operations.

The technical result is achieved by the fact that in the complex for lifting cars, trucks aboard career, containing the line vertically with the closed plate-Katkova traction chain with rounding it is connected with the gearbox and the engine drive sprocket and idler sprockets to move the driving rollers of the chain guides, consisting of a slope and when akaushi to him horizontal sections in the lower and upper parts of the complex, while on the circuit with a certain step fixed devices to capture and transportation of trucks to move their wheels in special ways, according to the invention, parallel to the line for lift trucks placed the line for their descent into the pit with kinematically connected between a drive sprocket in the head and middle parts of the two lines, and each device for the capture and transportation of cars, trucks up and down made in the form of a hinge attached to the two plate-Katkov circuits and placed between the double levers with rollers at the free ends can be rotated dual levers in the vertical plane and moving the rollers along the guide rails positioned below the guide for the driving rollers of the traction chains, with dual levers are interconnected by a platform with the ability to place on it the rear wheels of a dump truck on the line of lift and the front wheels in line of descent, sites hosted with clearances above the tracks, with each pad in the line of ascent is made with a curved stop by idler sprockets with the possibility of its interaction with the rear wheels of a dump truck, and on the line of descent is made with two stops can accommodate between them the front the Oles of a dump truck, in this way on sloping areas posted with movement of the front wheels in the line of ascent and rear wheels on the line of descent at a horizontal arrangement of cars, trucks, and career and on Board in the areas of entry of trucks in the line of ascent and descent over the idler and drive sprockets placed visors, and guides for traction chain rollers and levers are made curvilinear with the possibility of providing free check-in of the wheels of trucks on the road. The kinematic connection between the drive sprockets of the two lines can be made in the form associated with the motor gear, low speed shaft which is directly connected with the shaft of the drive sprocket of the line of ascent through the gear pair with shaft drive sprocket line of descent cars, trucks. Its final drive ratio of the kinematic connection between the drive sprockets of the two lines can be made equal to one.

System for lifting trucks on Board career presented on figure 1 - side view on the line lifting, figure 2 - plan of the complex, figure 3 - site supporting the rear wheels of a dump truck attached to the traction circuit area srig - view And figure 3, figure 5 - placement of a loaded car-truck on a slope line rise, 6-node in an empty car-truck on the line of descent.

System for lifting trucks on the turnover of the quarry contains line 1 for lifting the loaded trucks 2 Board 3 career 4 and placed parallel to her line 5 for the descent of empty trucks 6 in pit 4. Line 1 for lifting and line 5 for descent consist of two vertically closed plate-matkovich traction chains 7 and 8 with the possibility of rounding them drive sprockets 9 and 10 and idler sprockets 11 and 12 with the movement of the driving rollers 13 and 14 of the traction chains 7 and 8 along the guide rails 15 and 16. Each line 1, 5 consists of inclined sections 17 and 18 and the adjacent horizontal sections 19 and 20 in the lower part of the complex and horizontal sections 21 and 22 in the upper part of the complex. On the chains 7 and 8 each of lines 1 and 5 with a certain step fixed devices to capture and transportation of cars, trucks 2 and 6. These fixtures are made in the form of a hinge (23 and 24) attached to the two plate-Katkov circuits 7 - line 1 and the plate-Katkov traction circuits 8 - on line 5 and placed between the double levers 25 and 26 with the rollers 27 and 28 at the free ends. Dual levers 25 and 26 are installed with the possibility of rotation in the vertical plane and move the rollers 27 and 28 along the guide rails 29 and 30 placed under the guides 15 and 16 for the driving rollers 13 and 14 of the traction chains 7 and 8. Dual is s the levers 25 and 26 are interconnected pads 31 and 32 with the possibility of placing on the platform 31 of the rear wheels 33 loaded car-truck 2 on line 1 of lift and the front wheels 34 empty car-truck 6 - on line 5 of descent. The platform 31 and 32 are placed with a gap of 35 above the tracks 36 and 37. Each pad 31 on line 1 of the ascent is made with a curved stop 38 by idler sprockets 11 with the possibility of its interaction with the rear wheels 33 of a dump truck 2. Each pad 32 on line 5 of the descent is made with two lugs 39 and 40 can accommodate between them the front wheels 34 empty car-truck 6. When this path 36 and 37 on sloping areas 17 and 18 are placed with the possibility of movement of the front wheels 41 loaded trucks 2 on line 1 lift and rear wheels 42 of empty trucks 6 on line 5 of descent at the horizontal location of the trucks 2 and 6. Career 4 and on Board 3 in the zone of entry of the trucks 2 and 6 on lines 1 and 5 of ascent and descent over idler sprockets 11, 12 and driven sprockets 9 and 10 placed visors 43 and 44, and the guides 15, 16 for traction circuits 7, 8 and guides 29, 30 with the rollers 27, 28 dual levers 25 and 26 are made curvilinear with the possibility of providing free check-in of the rear wheels 33 Laden trucks 2 and the front wheels 34 of empty trucks 6 on path 36 and 37. The drive sprocket 9 and 10 provided with a common drive consisting of a motor 45 and gear 46, the low speed shaft which is directly connected with VA the ω chain sprocket 9 line 1 lift and through the gear pair 47 - with shaft drive sprocket 10 line 5 shutter trucks. Its final drive ratio toothed gear 47 may be taken equal to unity. Lines 1 and 5 provided with an intermediate drive sprockets 48 and 49, which are also kinematically linked with General motor 50 with gear 51 and the gear pair 52. On line 5 of descent can be set to a smaller number of intermediate sprockets 49, than the intermediate sprocket 48 on line 1 lifting. 53 and 54 of the direction of movement of loaded 2 and empty 6 cars, trucks when they are climbing on Board 3 and the descent into the pit 4.

The complex operates as follows.

When turning on the motors 45 and 50 torque from them is transmitted through gears 46 and 51 on the upper drive 9 and the intermediate drive sprocket 48 line lift 1, and through the toothed gear 47 and 52 on the top drive 10 and the intermediate sprocket 49 line 5 of descent. Due to this, the upper branch of the traction chains 7 start continuously move in the direction 53 (upward), and the upper branches of the traction chains 8 to move in the direction 54 (down). Each loaded car-truck 2, located in the career 4, through the visor 43 moves to the horizontal section 19 of the path 36 and stops. With continuous movement of the traction chains 7 the next platform 31 runs onto the rear wheel 33 of a dump truck 2 and its stop 38 when the result of the car-truck 2 in motion. Its front wheels 41 first move in the horizontal section 19 of the path 36, and then move on to its curvilinear section 17 (1 and 5). Therefore, the loaded car-truck 2 remains in a horizontal position at all inclined section 17 of the lift. The platform 31 is transmitted to the load only on the rear wheels 33, and the load of the front wheels 41 is passed directly to the path 36. After climbing to the top horizontal section 21 of the loaded car-truck 2 its course through the visor 44 travels on Board 3 career 4, and the space 36, turning on a curved section of the guides 29 through interacting with them rollers 27, under the visor 44 together with traction chain 7 around the drive sprocket 9 and moves to the lower branch and moves down. At the same time on Board 3 career 4 rise several loaded trucks 2 with the interval defined by the adopted distance between adjacent pads 31.

Similarly empty cars-trucks with 6 visor 44 Board 3 career 4 drive its front wheels 34 on path 37 and stop. With continuous movement of the traction chains 8 the next platform 32 is suitable due to the curved guide 30 with the rollers 28 to the front wheel 34 of empty car-truck 6 and moves it in the direction 54 (Fig). Due to the curved shape of the guide 30 when driving on them rollers 28 space 32 turns counterclockwise, and the front wheels 34 are fixed between the lugs 39 and 40. Due to the curved path 37 on the transition from the horizontal part 22 to the inclined section 18 and the removal path 37 from the upper branches of the traction chains 8 when moving along the inclined section 18 of empty cars-trucks 6 all the way during their descent take a horizontal position. On the lower horizontal section 19 line 5 before the visor 43 Playground 32 turns clockwise, so the stop 39 prevents the exit of empty car-truck 6 through the visor 43 in pit 4.

Due to the kinematic connection between the traction chains 7 and 8 both lines 1 and 5 through the use of gear pairs 47 and 52 with a transmission ratio equal to one, provided the movement of the traction chains 7 and 8 in opposite directions 53 and 54 at the same speed.

Due to the continuous operation and availability in addition to the top of the drive sprocket 9 and 10 intermediate drive sprockets 48 and 49 on both lines 1 and 5 possible lifting of loaded trucks 2 from deep pits 4 and the descent of empty trucks 6 in pit 4 at high performance. The implementation of the kinematic is Vasa between the drive sprocket 9, 10 and 48, 49 of the two lines 1 and 5 reduces the power consumption during the ascent-descent cars, trucks 2 and 6 due to unloading of the actuator, i.e. the energy of the actuators is spent almost exclusively on the rise of the rock mass.

Features of the invention provide lifting of loaded trucks from the quarry on the Board of career and simultaneous descent of empty cars trucks in the quarry during the continuous mode of transportation and to minimize the indicators of metal and energy when performing these operations.

1. System for lifting trucks aboard career, containing the line vertically with the closed plate-Katkova traction chain with rounding it is connected with the gearbox and the engine drive sprocket and idler sprockets to move the driving rollers of the chain guides, consisting of a slope and the adjacent horizontal sections in the lower and upper parts of the complex, while on the chain with a certain step fixed devices to capture and transportation of trucks to move their wheels in special ways, characterized in that parallel to the line for lift trucks placed the line for their descent running with kinematically interconnected band of stars is the customs in the head and middle part of the two lines, and every device for the capture and transportation of cars, trucks up and down made in the form of a hinge attached to the two plate-Katkov circuits and placed between the double levers with rollers at the free ends can be rotated dual levers in a vertical plane and moving the rollers along the guide rails positioned below the guide for the driving rollers of the traction chains, with dual levers are interconnected by a platform with the ability to place on it the rear wheels of a dump truck on the line of lift and the front wheels in line of descent, sites hosted with clearances above the tracks, with each site on line the ascent is made with a curved stop by idler sprockets with the possibility of its interaction with the rear wheels of a dump truck, and on the line of descent is made with two stops can accommodate between them the front wheels of a dump truck, in this way on sloping areas posted with movement of the front wheels in the line of ascent and rear wheels on the line of descent at a horizontal arrangement of cars, trucks, and career and on Board in the areas of entry of trucks in the line of ascent and descent over the idler and drive sprockets placed visors, and guides to t the retail chains and rollers levers are made curvilinear with the possibility of providing free check-in of the wheels of trucks on the road.

2. The complex according to claim 1, characterized in that the kinematic connection between the drive sprockets of the two lines can be made in the form associated with the motor gear, low speed shaft which is directly connected with the shaft of the drive sprocket of the line of ascent through the gear pair with shaft drive sprocket line of descent of the trucks.

3. The complex according to claim 1, characterized in that the ratio of the kinematic connection between the drive sprockets of the two lines is assumed to be one.



 

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