Device for lifting dump-trucks to opencast flank

FIELD: quarry vehicles.

SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks at opencast mining. Device is provided with dump-truck lowering line parallel to lifting line with drive sprockets in head and middle parts of both lines for mechanical engagement of said lines. Each gripping and up and down transporting device for dump-trucks is made ion form of twin levers with rollers of free ends hinge-connected to two leaf and-roller chains and arranged between said chains for turning twin levers in vertical plane and shifting rollers along guides arranged under guides for running rollers of traction chains. Twin levers are interconnected by platform for front wheels of dump-truck. Said platform are arranged with clearances over tracks, each being provided with curvilinear stop from side of tension sprockets on lifting line for engagement with front wheels of dump-truck and with two stops on lowering line for arranged of front wheels of dump-truck between said stops. Lips are made in quarry and on its flank in zones of entry of dump trucks on lifting and lowering lines over tension and drive sprockets. Guides for traction chains and lever rollers are made curvilinear to provide free getting of dump-trucks on track. Mechanical couplings of drive sprockets of both lines are made in form of reduction gear and toothed pair coupled with electric motor.

EFFECT: provision of lifting of loaded dump-trucks from quarry to opencast flank with simultaneous lowering of empty dump-trucks into quarry at continuous transportation, brought to minimum consumption of metal and energy at carrying out said operations.

3 cl, 6 dwg

 

The invention relates to systems career of transport, namely, devices for lifting and lowering of the dump 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 definitely a step attached to the 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).

The disadvantages of the known groovepusher pipeline is the inability to 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, the increase of metal and energy and the impossibility of simultaneous descent of 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 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 in that the device for lifting trucks on the turnover of the quarry, containing a 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 guide comprising an inclined what about the plot and the adjacent horizontal sections in the lower and upper parts of the device, 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 part 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 a vertical plane and the rollers move along the guides posted under guides for the running rollers of the traction chains, with dual levers are interconnected by a platform located with a gap above the tracks and with the possibility of placing it on the front wheels of a dump truck, and each pad in the line of ascent is made with a curved stop by idler sprockets with the possibility of its interaction with the wheels of a dump truck, and on the line of descent is made with two stops can accommodate between them the wheels of a dump truck, in this way on the lines of ascent and descent from ageny with the possibility of movement of the rear wheels cars, trucks, and in my career and on Board in the areas of cars, trucks posted visors, and guides for traction chain rollers and levers in the upper zones of the drive and idler sprockets 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.

Device for lifting cars, trucks aboard career presented on SIG - side view on the line lifting, figure 2 - plan of the complex, figure 3 - site supporting the front wheels of a dump truck attached to the traction circuit area 4 is a view As in 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.

Device for lifting cars, trucks aboard the quarry contains line 1 for lifting the loaded trucks 2 Board 3 career 4 and RA is displaced 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 levers 25 and 26 are interconnected pads 31 and 32 with the possibility of placing on the platform 31 of the front 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. Square the ground 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 front 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 rear wheels 41 loaded trucks 2 on line 1 lift and rear wheels 42 of empty trucks 6 on line 5 of descent. 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 41 and the front wheels 33 Laden trucks 2 and the front wheels 34 of empty trucks 6 on route 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 the shaft of the drive sprocket 9 line 1 lift and through the gear pair 47 - shaft drive sprocket 10 line 5 auto descent is obile-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 career 4 and the descent into the pit 4.

The device 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 (top) and upper branches of the traction chains 8 to move in the direction 54 (down). Each loaded car-truck 2, located in the career 4, reversing through the visor 43 moves to the horizontal section 19 of the path 36 and stops on route 36. With continuous movement of the traction chains 7 the next platform 31 runs onto the front wheel 33 of a dump truck 2 and its focus leads 38 car-truck 2 in LW is weaker. While its rear wheels 41 are moved along the path 36. During the transition from the horizontal part 19 on the inclined section 17 a sedan loaded car-truck 2 raise, therefore, when the inclined arrangement of the chassis, the body remains in a horizontal position at all inclined section 17 of the lift. During the transition ramp 17 on the horizontal part 21 a sedan loaded car-truck 2 is again lowered, turning it into a horizontal position. From the top of the 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, passing on the lower branch, and moves down. When lifting a loaded dump trucks 2 on the platform 31 is transmitted to the load only from the front wheels 33, and the load of the rear wheels 41 is passed directly to the path 36. At the same time on Board 3 career 4 rise several loaded trucks 2 with the interval defined by the adopted distances 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. P and continuous movement of the traction chains 8 the next platform 32 is suitable, due to the curved guide 30 with the rollers 28, the front wheel 34 of empty car-truck 6 and moves it in the direction 54 (6). 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. 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 relationships between the drive sprocket 9, 10 and 48, 49 of the two lines 1 and 5 reduces the power consumption when lifting-sustatinable-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 trucks in the quarry during the continuous mode of transportation and to minimize the indicators of metal and energy when performing these operations.

1. Device 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 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 cars, trucks, so that they can move their wheels on the tracks, characterized in that parallel to the line for lift trucks placed the line for their descent running 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 the implementation is 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 move rollers on rails, placed under the guides for the running rollers of the traction chains, with dual levers are interconnected by a platform located with a gap above the tracks and with the possibility of placing it on the front wheels of a dump truck, and each pad in the line of ascent is made with a curved stop by idler sprockets with the possibility of its interaction with the wheels of a dump truck, and on the line of descent is made with two stops can accommodate between them the wheels of a dump truck, in this way on the lines of ascent and descent are with the possibility of movement of the rear wheels of trucks and in my career and on Board in the areas of cars, trucks posted visors, and guides for traction chain rollers and levers in the upper zones of the drive and idler sprockets are made curvilinear with the possibility of providing free check-in of the wheels of trucks on the road.

2. The device according to claim 1, characterized in that the kinematic connection between the drive sprockets of the two lines is made in the form connected with motor reducer 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 device 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.



 

Same patents:

FIELD: transport engineering; quarry dump trucks.

SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks when carrying out opencast mining. Proposed device for lifting dump-truck to flank of opencast contains, in addition of lifting line, a lowering line, both lines are parallel, being mechanically coupled by drive sprockets in head and middle parts of both lines. Each device for gripping and transporting of dump-trucks up and down is made in form twin levers with rollers hinge-connected to two leaf-and-roller chains and arranged in between for turning twin levers in vertical plane and moving rollers along guides arranged under guides for running rollers of traction chains. Twin levers are interconnected by platform to arrange front wheels of dump0truck. Platforms are arranged with clearances over tracks and are provided with curvilinear stop on lifting line from side of tension sprocket for engagement with front wheels of dump-truck and are made on lowering line with two stops to arranged front wheels of dump-truck between said stops. Cavities with inclined bottom to said of tension sprocket and wall square to surface of track are arranged on surface of lifting line track at definite step. Each platform of lifting line is furnished with shoe hinge-secured on platform symmetrically to longitudinal axis of lifting line for engagement of free end of shoe with surface of track at normal operation and, at break of traction chains, engagement of free end with wall of cavity, and free end of curvilinear form, with stop of platform.

EFFECT: provision of lifting loaded dump-trucks to flank of opencast and simultaneous lowering of empty-dump trucks into opencast with possibility of holding loaded dump-truck on lifting line in case of breaks of traction chains.

2 cl, 7 dwg

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

FIELD: earth-moving equipment, particularly machines for ground cutting, pit excavation for hydraulic structure, large-scale object building, as well as for mineral deposit development.

SUBSTANCE: ditching and transportation rig comprises basic chassis connected with earth-moving module and with transportation-handling devices, which move ground in vertical and horizontal directions. Earth-moving module is made as bucket rotary drum secured by means of vertical and horizontal hinges, as well as control-rods to the basic chassis so that the bucket rotary drum may rotate in vertical and horizontal planes and overhanging length thereof may be changed. Device is provided with continuous-type conveyer unit made as auger system and as telescopic pipe pivotally connected with transportation-handling device, which move ground in horizontal direction. Horizontal auger is located inside bucket rotary drum and is offset with respect to drum axis so that auger axis is parallel to drum axis. The horizontal auger is transversal to inclined auger having lower end installed under outlet end of horizontal auger. Upper end of inclined auger is pivotally fastened to upper telescopic pipe section. Transportation-handling device, which moves ground in horizontal direction, is made as endless band installed on length-adjustable telescopic sliding frame, which may change ground displacement distance by means of tightening rollers. Rollers have pins installed at different heights sliding in telescopic frame grooves. The telescopic frame has flanging. Lower telescopic pipe section is provided with rotary hinge connected to telescopic frame flanging so that rotary hinge may perform longitudinal movement with respect to frame flanging. Transportation-handling device, which provides vertical ground movement is composite and made as continuous-type bucket bands mating each other in transfer points.

EFFECT: increased ability and speed of pit excavation, reduced costs of ground excavation and transportation outside the pit and provision of continuous technological cycle.

2 cl, 8 dwg

FIELD: mining, particularly machines for obtaining, or the removal of, materials in open-pit mines.

SUBSTANCE: cutting drum has cylindrical body with drive and is connected to mining machine by posts. The cutting drum is provided with disc rolling cutters arranged on line of rolling contact and with conveying augers extending from both ends thereof to drum center. Coils of each conveying auger face each other to divide the drum into two symmetric halves. Side drum surface defined by imaginary disc rolling cutter races includes cylindrical part and conical parts tapering towards outer cutting drum ends and adjoining the cylindrical part. Cylindrical part length is not less than 0.25 of cutting length Hc of material to be separated from rock. Working side surfaces of disc rolling cutters having wedge cross-sections and arranged on both cutting drum body halves in central cutting part thereof face opposite directions. Working side surfaces of disc rolling cutters having wedge cross-sections and arranged in both conical drum body parts face drum center. Both outer ends of cutting drum body are provided with disc rolling cutters made as free-cutting bits having wedge cross-sections facing outside.

EFFECT: possibility to perform continuous mining of rock characterized by increased rigidity.

8 cl, 5 dwg

FIELD: mining industry, particularly open-cast mining, particularly to produce natural stone blocks from sheet deposits by open-cast mining.

SUBSTANCE: method involves forming benches in each separate deposit so that production deposit is arranged at bench bottom; excavating mineral blocks by moving hydraulic excavator bucket teeth under productive deposit bottom and removing the blocks having natural configuration due to applying hydraulic action of excavator boom, handle and bucket to block with the use of natural deposit fracture porosity, which defines configuration and volume of produced blocks.

EFFECT: increased output, possibility to produce blocks from thin sheet deposits along with maintaining natural block volumes.

1 ex

FIELD: rock loading systems, particularly to load rock in dump-trucks with the use of mine excavator.

SUBSTANCE: system comprises hopper with outlet orifice and outlet orifice closing means. The system also has at least two modules arranged at mine face so that the modules may be moved and filled with rock by mine excavator. Each hopper has volume corresponding to load capacity of dump-trucks to be used. Outlet orifice closing means is made as pinned gate. Pedal is pivotally installed on frame slide at acute angle to slide base and may be rotated towards dump-truck driving direction. The pedal may rotate in vertical plane and is installed so that rear dump-truck wheels may be moved over the pedal. Pedal and free end of the gate are pivotally connected one to another through two control-rods and form articulated parallelogram. Hinge, which connects gate with control-rods, is fastened to counterweights by two flexible members and angle pulley so that counterweights may be displaced in vertical plane along frame posts. The hopper is provided with damping means brought into cooperation with the gate.

EFFECT: provision of continuous loading and undisturbed mine excavator operation.

3 dwg

FIELD: mining industry.

SUBSTANCE: method includes extracting quarry to planned depth by ore and rocks extraction by displacement of shelves along horizons with transferring to crushing plants, crushing rocks and then delivering them by lifting device to the surface, during extraction of quarry to planned depth at first stage during construction of board at the end of quarry in zone of decrease of power of deposit in stable rocks conveyer rope system is constructed, connected to hoisting machine, to bed with recesses, allowing to raise crushed material to large height at steep angle and with deepening of mining and displacement of crushers to lower horizons conveyer system is extended to provide for optimal transport shoulder for gathering vehicles.

EFFECT: higher efficiency, higher productiveness.

2 cl, 6 dwg, 1 ex

FIELD: open-cast mining.

SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.

EFFECT: improved operating capabilities of device.

5 cl, 5 dwg

The invention relates to systems career of transport, namely, devices for lifting trucks aboard a career in the conduct of surface mining

FIELD: transport engineering; quarry dump trucks.

SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks when carrying out opencast mining. Proposed device for lifting dump-truck to flank of opencast contains, in addition of lifting line, a lowering line, both lines are parallel, being mechanically coupled by drive sprockets in head and middle parts of both lines. Each device for gripping and transporting of dump-trucks up and down is made in form twin levers with rollers hinge-connected to two leaf-and-roller chains and arranged in between for turning twin levers in vertical plane and moving rollers along guides arranged under guides for running rollers of traction chains. Twin levers are interconnected by platform to arrange front wheels of dump0truck. Platforms are arranged with clearances over tracks and are provided with curvilinear stop on lifting line from side of tension sprocket for engagement with front wheels of dump-truck and are made on lowering line with two stops to arranged front wheels of dump-truck between said stops. Cavities with inclined bottom to said of tension sprocket and wall square to surface of track are arranged on surface of lifting line track at definite step. Each platform of lifting line is furnished with shoe hinge-secured on platform symmetrically to longitudinal axis of lifting line for engagement of free end of shoe with surface of track at normal operation and, at break of traction chains, engagement of free end with wall of cavity, and free end of curvilinear form, with stop of platform.

EFFECT: provision of lifting loaded dump-trucks to flank of opencast and simultaneous lowering of empty-dump trucks into opencast with possibility of holding loaded dump-truck on lifting line in case of breaks of traction chains.

2 cl, 7 dwg

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 a lifting apparatus for surface mining

The invention relates to hoisting devices, in particular to inclined lifts, for example, dump pits, and can be used in the slipways

The invention relates to systems career of transport, namely, devices for lifting trucks aboard a career in the conduct of surface mining

The invention relates to systems career of transport, namely, devices for lifting and lowering of the dump trucks in the quarry in the conduct of surface mining

The invention relates to the mining and transport equipment, in particular for the transportation of goods in quarries

The invention relates to mining, namely the mechanization of transport work in career

Cableway // 2051856
The invention relates to career and mine sloped lifting installations

FIELD: transport engineering; quarry dump trucks.

SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks when carrying out opencast mining. Proposed device for lifting dump-truck to flank of opencast contains, in addition of lifting line, a lowering line, both lines are parallel, being mechanically coupled by drive sprockets in head and middle parts of both lines. Each device for gripping and transporting of dump-trucks up and down is made in form twin levers with rollers hinge-connected to two leaf-and-roller chains and arranged in between for turning twin levers in vertical plane and moving rollers along guides arranged under guides for running rollers of traction chains. Twin levers are interconnected by platform to arrange front wheels of dump0truck. Platforms are arranged with clearances over tracks and are provided with curvilinear stop on lifting line from side of tension sprocket for engagement with front wheels of dump-truck and are made on lowering line with two stops to arranged front wheels of dump-truck between said stops. Cavities with inclined bottom to said of tension sprocket and wall square to surface of track are arranged on surface of lifting line track at definite step. Each platform of lifting line is furnished with shoe hinge-secured on platform symmetrically to longitudinal axis of lifting line for engagement of free end of shoe with surface of track at normal operation and, at break of traction chains, engagement of free end with wall of cavity, and free end of curvilinear form, with stop of platform.

EFFECT: provision of lifting loaded dump-trucks to flank of opencast and simultaneous lowering of empty-dump trucks into opencast with possibility of holding loaded dump-truck on lifting line in case of breaks of traction chains.

2 cl, 7 dwg

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