CN106586380B - Take limit function's upper and lower bending type belt conveyor - Google Patents

Take limit function's upper and lower bending type belt conveyor Download PDF

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Publication number
CN106586380B
CN106586380B CN201710066996.XA CN201710066996A CN106586380B CN 106586380 B CN106586380 B CN 106586380B CN 201710066996 A CN201710066996 A CN 201710066996A CN 106586380 B CN106586380 B CN 106586380B
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rotating shaft
limiting
rod
supporting
roller
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CN106586380A (en
Inventor
刘志海
张媛媛
曾庆良
王成龙
杜树坚
万丽荣
张鑫
王亮
周晨
薜媛
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/22Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising a series of co-operating units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/44Belt or chain tensioning arrangements

Abstract

The invention relates to an up-and-down bending type belt conveyor with a limiting function, which comprises a conveyor belt, two front support legs and two rear support legs, wherein a front rotating shaft is rotatably connected between the two front support legs, a turnabout drum is movably penetrated on the front rotating shaft, the front rotating shaft is connected with a driving drum through a front fixing rod, the limiting support legs are arranged between the front rotating shaft and the driving drum and close to the front rotating shaft, the top ends of the limiting support legs are connected with the limiting rotating shaft through a limiting rotating shaft shell, and the limiting rotating shaft is connected with a limiter; the rear rotating shaft is rotatably connected between the two rear supporting legs, the upper portion of the rear rotating shaft is provided with the upper tensioning roller, the rear portion of each rear supporting leg is connected with the driven roller through the rear fixing rod, and the conveying belt is wound between the driven roller and the driving roller. The invention can realize the upward bending of the conveyer belt by 90 degrees to the maximum extent, realize the transportation with different slopes, and is provided with the buffer device, the tensioning device and the limiting device to prevent the reversion and the damage of the conveyer belt caused by over folding, has certain flexibility in the utilization of horizontal space, and can effectively save space.

Description

Take limit function's upper and lower bending type belt conveyor
Technical Field
The invention relates to an up-and-down bending type belt conveyor with a limiting function, and belongs to the technical field of conveying equipment.
Background
The belt conveyor is the most important bulk material conveying and loading and unloading equipment, can be widely applied to the industrial fields of mines, metallurgy, building materials, chemical industry, electric power, food processing and the like, can be widely applied to coal mines, metal mines, steel enterprises, ports, cement plants and the like, can be used for conveying bulk materials and finished materials, and has great difference in design and application according to different use places, working environments and types of conveyed materials. For the existing belt conveyor with short distance, vertical bending cannot be carried out, so that the occupied space is large.
A belt conveyor is a machine that is driven by friction and transports material in a continuous manner. The material conveying device can form a material conveying flow path from an initial feeding point to a final discharging point on a certain conveying line. The conveying device can be used for conveying broken materials and finished articles. At present, most of researches on belt conveyors are stopped on long-distance horizontal bending transportation or long-distance inclined transportation, and the space occupancy rate is high; there is no relevant literature report on the research of the short-distance vertically bendable belt conveyor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the up-and-down bending type belt conveyor with the limiting function, which can realize upward and downward bending of a conveying belt at 0-90 degrees; the conveyer is provided with a limiting rotating shaft, a pawl and an adjustable ratchet rod, so that transportation at different inclination angles can be realized; when bending is carried out, a buffer device and a tensioning device are arranged at the folding position, so that the damage of the conveying belt caused by excessive folding is prevented; and can bend 90 degrees when no operation, have certain elasticity in the utilization of horizontal space, can effectively save space.
The technical scheme of the invention is as follows:
an up-down bending type belt conveyor with a limiting function comprises a conveyor belt, two front support legs and two rear support legs, and is characterized in that a front rotating shaft is rotatably connected between the two front support legs, a turnabout drum is movably penetrated on the front rotating shaft, two ends of the front rotating shaft are vertically and rotatably connected with front fixing rods extending forwards horizontally, an active drum is rotatably connected between the front ends of the two front fixing rods, one of the front fixing rods is provided with a driving motor connected with the active drum, and the driving motor drives the active drum to rotate; a limiting support leg is arranged between the front rotating shaft and the driving roller and close to the front rotating shaft, a limiting rotating shaft shell is fixed at the top end of the limiting support leg, a limiting rotating shaft with a convex middle section is movably penetrated on the limiting rotating shaft shell, and two ends of the limiting rotating shaft are connected with limiters; a rear rotating shaft is rotatably connected between the two rear supporting legs, an upper tensioning roller is arranged above the rear rotating shaft, one end of the rear rotating shaft is connected with a driven gear, one end of the front rotating shaft, which is on the same side as the driven gear, is provided with a driving gear meshed with the driven gear, and the driving gear is in driving connection with a tensioning motor; two rear fixing rods extending backwards are connected behind the two rear supporting legs, a driven roller is rotatably connected between the rear ends of the two rear fixing rods, and a conveying belt is wound between the driven roller and the driving roller.
Preferably, a lower tensioning roller is arranged between the two rear supporting legs, the lower tensioning roller is positioned between the upper layer conveying belt and the lower layer conveying belt, and extension springs are connected below two ends of the lower tensioning roller.
Further preferably, one end of the tension spring is fixed below one end of the lower tensioning roller, and the other end of the tension spring is fixedly connected to the rear supporting leg.
Further preferably, the axes of the lower tensioning roller, the upper tensioning roller and the rear rotating shaft are arranged on a vertical plane and in parallel.
Preferably, the rear rotating shaft is positioned above the upper-layer conveying belt, two ends of the rear rotating shaft are fixedly connected with upward supporting frames, and the upper tensioning roller is rotatably connected between the supporting frames and is parallel to the rear rotating shaft.
Preferably, the limiting device comprises a limiting device arranged on the side edge of the front fixing rod, a pawl and two fixing supports, one end of each fixing support is movably connected to two ends of the limiting rotating shaft, the other end of each fixing support is fixed on the front supporting leg, the pawl is fixedly connected with a connecting rod, the connecting rod is vertically and rotatably connected to the end portion of the limiting rotating shaft, and the pawl is meshed with the limiting device.
Preferably, a groove is formed in one end, close to the front rotating shaft, of the front fixing rod, a power supply is fixed on the back face of the groove, a magnet and a compression spring wound with coils are arranged at the closed end of the groove, the power supply is electrically connected with the magnet, the magnet and the compression spring are alternately arranged at the bottom of the groove at intervals, a ratchet rod is arranged at the open end of the groove and covers the magnet and the compression spring, and the ratchet rod moves in the groove under the action of the electromagnet and the compression spring.
Preferably, a transmission connecting rod is connected between the limiting rotating shaft and the front rotating shaft.
Preferably, the transmission connecting rod comprises two supporting rods and a middle connecting rod, two ends of the middle connecting rod are respectively connected with the two supporting rods through bearings, one of the supporting rods is connected to the front rotating shaft, and the other supporting rod is connected to the limiting rotating shaft.
Preferably, the front rotating shaft is connected to the top ends of the two front support legs, front bearings are respectively arranged at the two ends of the front rotating shaft, and the front rotating shaft is connected with the front support legs through the front bearings.
Preferably, the rear rotating shaft is connected to the top ends of the two rear support legs, rear bearings are respectively arranged at the two ends of the rear rotating shaft, and the rear rotating shaft is connected with the rear support legs through the rear bearings.
According to the invention, the driving roller and the driven roller are preferably exchanged, and upward bending of the driven roller side can be realized.
Preferably, the front rotating shaft, the limiting rotating shaft and the rear rotating shaft are arranged in parallel, the spacing distance between the front rotating shaft and the rear rotating shaft is the sum of the reference circle radii of the two meshing gears, and the spacing distance between the front rotating shaft and the limiting rotating shaft is the length of the fixed support.
Preferably, the driving motor is connected with the driving roller through a coupling.
Preferably, the front fixing rod is provided with an L-shaped supporting rod, the end part of the supporting rod extends above the upper-layer conveying belt, and the end part of the supporting rod is provided with a goods in-place sensor.
When the belt conveyor is bent, the bent part of the conveying belt and the accessory device are bent upwards, the tensioning motor drives the driving gear and the driven gear to rotate so as to drive the rear rotating shaft to rotate, and the rear rotating shaft drives the upper tensioning roller to reversely press the conveying belt, so that the purpose of bending the conveyor upwards is achieved. The bending structure is adjusted, and downward bending can be realized in the same way; the upper tensioning roller and the rear rotating shaft are arranged below the belt, the driving gear and the driven gear are correspondingly adjusted, the bending structure is adjusted to be bent downwards, and the belt is bent downwards.
The invention has the advantages of
1. The invention can realize the maximum 90-degree bending when not in use, can be unfolded automatically and used normally when in operation, and effectively saves space.
2. The invention is provided with two tensioning rollers, which play a role of tensioning and buffering the conveying belt when the conveying belt is bent, thereby preventing the reduction of the service life of the conveying belt caused by excessive bending and frequent bending.
3. The invention can realize bending of 90 degrees at most, is provided with the limiting device to realize multiple limiting, and can realize transportation of different slopes by bending 1-30 degrees and the like according to actual needs during operation to prevent reversion.
Drawings
Fig. 1 is a right side perspective view of the present invention.
Fig. 2 is a schematic left-side perspective view of the present invention.
Fig. 3 is a schematic view of a folded right-side perspective structure of the present invention.
Fig. 4 is a partial cutaway structure diagram of the front fixing rod of the present invention.
Fig. 5 is a schematic diagram of a transverse cutting structure of the connection between the limiting rotating shaft shell and the limiting rotating shaft.
Fig. 6 is a schematic perspective view of the transmission link according to the present invention.
Fig. 7 is a schematic view of a folded left-side perspective structure of the present invention.
In the figure: 1 conveying belt, 2 upper tensioning rollers, 3 rear rotating shafts, 4 driven rollers, 5 rear fixing rods, 6 rear bearings, 7 lower tensioning rollers, 8 rear supporting legs, 9 extension springs, 10 front bearings, 11 direction-changing rollers, 12 fixing supports, 13 front supporting legs, 14 front fixing rods, 14-1 power supplies, 14-2 ratchet rods, 14-3 compression springs, 14-4 magnets with coils, 15 driving rollers, 16 goods in-place sensors, 17 supporting rods, 18 driven gears, 19 driving gears, 20 tensioning motors, 24 driving motors, 25 couplers, 26 limiting rotating shafts, 26-1 limiting rotating shaft shells, 26-2 bearings, 26-3 convex rotating shafts, 27 limiting supporting legs, 28 pawls, 29 front rotating shafts, 30 transmission connecting rods, 30-1 front supporting rods, 30-2 transmission front bearings, 30-3 middle connecting rods and 30-4 transmission rear bearings, and 30-5 rear support rods.
The specific implementation mode is as follows:
the present invention is further illustrated by the following specific examples, which are intended to further illustrate the invention so as to enable those skilled in the art to further understand the invention, and should not be construed as limiting the scope of the invention. The examples are not described in detail and are in accordance with the prior art in the field.
Example 1
The present invention will be further explained by taking the upward bending as an example and combining the drawings, but the protection of the present invention is not limited in this way.
An up-down bending type belt conveyor with a limiting function is structurally shown in figures 1, 2, 3, 4, 5 and 6 and comprises two front supporting legs 13 and two rear supporting legs 8, a front rotating shaft 29 is rotatably connected between the two front supporting legs 13, a direction-changing roller 11 is movably penetrated on the front rotating shaft 29, two ends of the front rotating shaft 29 are vertically and rotatably connected with front fixing rods 14 extending forwards horizontally, a driving roller 15 is rotatably connected between the front ends of the two front fixing rods 14, and a driving motor 24 in driving connection with the driving roller 15 is arranged on the front fixing rods 14; a limiting support leg 27 is arranged between the front rotating shaft 29 and the driving roller 15 and close to the front rotating shaft, a limiting rotating shaft shell 26-1 is fixed at the top end of the limiting support leg 27, a limiting rotating shaft 26 with a convex middle section is movably penetrated on the limiting rotating shaft shell 26-1, and two ends of the limiting rotating shaft 26 are connected with limiters;
the stopper include setting up stop device, pawl 28 and the fixed bolster 12 at the front fixed pole side, fixed bolster 12 be two, the both ends at spacing pivot 26 of one end swing joint of fixed bolster 12, the other end is fixed 13 on the preceding landing leg, pawl 28 fixedly connected with connecting rod, the perpendicular rotation of connecting rod is connected at the tip of spacing pivot 26, pawl 28 is connected with stop device meshing.
A groove is arranged at one end of the front fixed rod 14 close to the front rotating shaft, a power supply 14-1 is fixed at the back of the groove, a magnet 14-4 wound with a coil and a compression spring 14-3 are arranged at the closed end of the groove, the power supply 14-1 is electrically connected with the magnet 14-4, the magnet and the compression spring are alternately arranged at the bottom of the groove at intervals, a ratchet rod 14-2 is arranged at the open end of the groove, the ratchet rod 14-2 covers the magnet and the compression spring, and the ratchet rod 14-2 moves in the groove under the action of the electromagnet and the compression spring. A transmission connecting rod 30 is connected between the limit rotating shaft 26 and the front rotating shaft. The transmission connecting rod comprises two supporting rods and a middle connecting rod 30-3, the two supporting rods are a front supporting rod 30-1 and a rear supporting rod 30-5, a transmission front bearing 30-2 is arranged at the top end of the front supporting rod 30-1, a transmission rear bearing 30-4 is arranged at the top end of the rear supporting rod 30-5, and the middle connecting rod 30-3 is movably connected between the transmission front bearing 30-2 and the transmission rear bearing 30-4. The front support rod 30-1 is connected to the front rotating shaft 29, and the rear support rod is connected to the limit rotating shaft 26.
A rear rotating shaft 3 is rotatably connected between the two rear supporting legs 8, a supporting frame is fixedly connected above the rear rotating shaft 3, an upper tensioning roller 2 parallel to the rear rotating shaft 3 is rotatably connected onto the supporting frame, one end of the rear rotating shaft 3 is connected with a driven gear 18, one end of a front rotating shaft 29 is provided with a driving gear 19 meshed with the driven gear 18, and the driving gear 19 is in driving connection with a tensioning motor 20; two back landing legs 8 rear is connected with two back dead levers 5, rotates between two back dead levers 5 rear ends to be connected with driven cylinder 4, around there being conveyer belt 1 between driven cylinder 4 and the initiative cylinder 15, and back pivot 3 is located the top of upper conveyer belt 1.
A lower tensioning roller 7 is arranged between the two rear supporting legs 8, the lower tensioning roller 7 is positioned between the upper layer conveying belt 1 and the lower layer conveying belt 1, the lower parts of the two ends of the lower tensioning roller 7 are connected with extension springs 9, and the lower ends of the extension springs 9 are connected to the rear supporting legs 8. An L-shaped supporting rod 17 is arranged on the front fixing rod 14, the end part of the supporting rod 17 extends above the upper layer conveying belt 1, and a goods in-place sensor 16 is arranged at the end part of the supporting rod 17.
The conveyer belt 1 is used for realizing horizontal conveying of goods; the driving roller 15 is used for supporting the conveyer belt 1 and driving the conveyer belt 1 to rotate; the driven roller 4 is used for supporting the other end of the conveyer belt 1 to ensure that the conveyer belt 1 is stretched and moves synchronously with the driving roller 15 under the action of the friction force of the conveyer belt 1; the bend pulley 11 is used for realizing the bend of the conveyer belt 1 when bending, and simultaneously pressing the conveyer belt 1 at the lower end; the goods in-place sensor 16 is used for judging whether the conveyer belt 1 is empty or not; the upper tensioning roller 2 is used to tension the conveyor belt 1 when it is bent.
As shown in fig. 3 and 7, when the belt conveyor bends, the bent part of the conveyor belt 1 and the attachment bend upwards, the tensioning motor 20 drives the driving gear 19 and the driven gear 18 to rotate, and further drives the rear rotating shaft 3 to rotate, the rear rotating shaft 3 drives the upper tensioning roller 2 to reversely press the conveyor belt 1, and simultaneously drives the front supporting rod 30-1 to rotate, the front supporting rod 30-1 pushes the rear supporting rod 30-5 to move through the middle connecting rod 30-3, and the rear supporting rod 30-5 drives the limit rotating shaft 26 to rotate. Before the limiting rotating shaft 26 rotates, the power supply 14-1 is electrified, the magnet 14-4 with the coil generates magnetic force to attract the ratchet rod 14-2, the ratchet rod 14-2 is separated from the pawl 28, the pawl 28 rotates in the same direction with the limiting rotating shaft 26, when the conveyor is bent upwards and needs to be stopped, the power supply 14-1 is powered off, the magnet 14-4 with the coil loses the magnetic force, the ratchet rod 14-2 is released, the ratchet rod 14-2 is meshed with the pawl 28, the limiting rotating shaft 26 is prevented from reversing, and therefore the purpose of bending the conveyor upwards is achieved. The driving motor 24 provides driving force for the driving pulley 15, and the motor for the direction-changing pulley 11 provides torque for the direction-changing pulley 11. The front bearing 10 and the rear bearing 6 are used for fixing the rotating shaft; the transmission front bearing 30-2 and the transmission rear bearing 30-4 are used for fixing the middle connecting rod; the bearing 26-2 is used for fixing the limit rotating shaft 26; the coupler 25 is used for connecting a rotating shaft of the motor and a driven shaft and transmitting torque to the driven shaft so that the driven shaft rotates; other auxiliary equipment is used for supporting and fixing the parts.
The conveyer belt 1 realizes the rotation movement through the friction force of the driving roller 15, and the function of the conveyer belt is to realize the horizontal conveying of goods; the driving roller 15 is provided with torque by a driving motor 24 and a coupling 25, and is fixed by a front fixing rod 14 and a bottom support rod 12 which are symmetrically arranged, and the driving roller is used for supporting the conveying belt 1 and driving the conveying belt 1 to rotate. The driven roller 4 has both ends fixed to the symmetrically distributed rear legs 8 through the symmetrically arranged rear fixing rods 5, and functions to support the other end of the conveyor belt 1, so as to ensure that the conveyor belt 1 is stretched and moves synchronously with the driving roller 15 under the frictional force of the conveyor belt 1. The two ends of the lower tensioning roller 7 are fixed on the rear supporting legs 8 which are symmetrically distributed through the paired extension springs 9, and the function of the lower tensioning roller is to tension the conveying belt 1 by the tension of the extension springs 9 and the self gravity.
Example 2
The utility model provides a take limit function's upper and lower bending type belt conveyor, the structure is with embodiment 1 the difference lies in:
the axes of the lower tensioning roller 7, the upper tensioning roller 2 and the rear rotating shaft 3 are arranged on a vertical plane in parallel, the front rotating shaft and the rear rotating shaft are arranged in parallel, and the spacing distance is the sum of the reference circle radiuses of the two meshing gears, so that the optimal technical scheme is provided.
Comparative example
The belt conveyor capable of horizontally turning disclosed in chinese patent document 201420281223.5 includes a steel wire rope core conveyor belt and a carrier roller set, wherein a steel wire rope of the steel wire rope core includes a rope core, a plurality of steel wires and another steel wire twisted around the periphery of the plurality of steel wires, and the plurality of steel wires are composed of a middle steel wire rope densely-arranged region and two ends of steel wire rope sparsely-arranged regions; along the material conveying direction, the steel wire rope core conveying belt is composed of a first small grooving angle linear conveying section, a first large grooving angle linear conveying section, a tubular turning conveying section, a second large grooving angle linear conveying section and a second small grooving angle linear conveying section, and the conveying belts at the corresponding positions of the steel wire rope arranging areas at the two ends of the tubular turning conveying section are overlapped up and down.
Comparative experiment:
the up-down bending type belt conveyor with the limiting function is compared with a comparative example, the up-down bending type belt conveyor with the limiting function is different from the comparative example in principle, the comparative example realizes horizontal bending, the invention realizes vertical bending, the conveyor of the comparative example realizes horizontal bending transportation by carrying out staged deformation on one conveyor belt, the conveyor belt is bent into a tubular shape, so that each point in the circumferential direction of the conveyor belt is stressed uniformly, turning and reversing are facilitated, the section of the conveyor belt bent into the tubular shape can be turned and reversed, but the conveyor belt is easy to damage the conveyor belt at the up-down folding position and the turning position through staged deformation and turning, has no flexibility in space utilization, and cannot be bent at the maximum 90 degrees in the vertical direction. When the folding device is used for bending, the buffer device, the tensioning device and the limiting device are arranged at the folding position, so that the conveying belt is prevented from being reversed and damaged due to excessive folding, the folding device can be used for bending at 90 degrees when no operation is performed, certain flexibility is realized in the aspect of horizontal space utilization, and the space is saved.
The foregoing is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present patent, and these modifications and substitutions should also be regarded as the protection scope of the present patent.

Claims (4)

1. A belt conveyor with a limiting function and a bending type up and down comprises a conveyor belt, two front supporting legs and two rear supporting legs and is characterized in that a front rotating shaft is rotatably connected between the two front supporting legs, a turnabout drum movably penetrates through the front rotating shaft, two ends of the front rotating shaft are vertically and rotatably connected with front fixing rods extending forwards horizontally, an active drum is rotatably connected between the front ends of the two front fixing rods, a driving motor connected with the active drum is arranged on one front fixing rod, and the driving motor drives the active drum to rotate; a limiting support leg is arranged between the front rotating shaft and the driving roller and close to the front rotating shaft, a limiting rotating shaft shell is fixed at the top end of the limiting support leg, a limiting rotating shaft with a convex middle section is movably penetrated on the limiting rotating shaft shell, and two ends of the limiting rotating shaft are connected with limiters; a rear rotating shaft is rotatably connected between the two rear supporting legs, an upper tensioning roller is arranged above the rear rotating shaft, one end of the rear rotating shaft is connected with a driven gear, one end of the front rotating shaft, which is on the same side as the driven gear, is provided with a driving gear meshed with the driven gear, and the driving gear is in driving connection with a tensioning motor; two rear fixing rods extending backwards are connected behind the two rear supporting legs, a driven roller is rotatably connected between the rear ends of the two rear fixing rods, and a conveying belt is wound between the driven roller and the driving roller;
a lower tensioning roller is arranged between the two rear supporting legs, the lower tensioning roller is positioned between the upper layer conveying belt and the lower layer conveying belt, and extension springs are connected below two ends of the lower tensioning roller; one end of the extension spring is fixed below one end of the lower tensioning roller, and the other end of the extension spring is fixedly connected to the rear supporting leg; the lower tensioning roller, the upper tensioning roller and the rear rotating shaft are arranged on a vertical plane in parallel;
the limiting device comprises a limiting device, a pawl and two fixing supports, the limiting device, the pawl and the fixing supports are arranged on the side edge of the front fixing rod, one end of each fixing support is movably connected to two ends of the limiting rotating shaft, the other end of each fixing support is fixed to the front supporting leg, the pawl is fixedly connected with a connecting rod, the connecting rod is vertically and rotatably connected to the end portion of the limiting rotating shaft, and the pawl is meshed with the limiting device; a groove is arranged at one end of the front fixed rod close to the front rotating shaft, a power supply is fixed at the back of the groove, a magnet wound with a coil and a compression spring are arranged at the closed end of the groove, the power supply is electrically connected with the magnet, the magnet and the compression spring are alternately arranged at the bottom of the groove at intervals, a ratchet rod is arranged at the opening end of the groove, the ratchet rod covers the magnet and the compression spring, and the ratchet rod moves in the groove under the action of the electromagnet and the compression spring; the front rotating shaft is connected to the top ends of the two front support legs, front bearings are respectively arranged at the two ends of the front rotating shaft, and the front rotating shaft is connected with the front support legs through the front bearings; the rear rotating shaft is connected to the top ends of the two rear supporting legs, rear bearings are respectively arranged at the two ends of the rear rotating shaft, the rear rotating shaft is connected with the rear supporting legs through the rear bearings, and a transmission connecting rod is connected between the limiting rotating shaft and the front rotating shaft; the transmission connecting rod comprises two supporting rods and a middle connecting rod, two ends of the middle connecting rod are respectively connected with the two supporting rods through bearings, one of the supporting rods is connected to the front rotating shaft, and the other supporting rod is connected to the limiting rotating shaft; the driving roller and the driven roller are exchanged, and upward bending of the side of the driven roller can be realized.
2. The upward and downward bending type belt conveyor with the limiting function according to claim 1, wherein the rear rotating shaft is located above the upper layer conveyor belt, upward supporting frames are fixedly connected to both ends of the rear rotating shaft, and the upper tensioning roller is rotatably connected between the supporting frames and is parallel to the rear rotating shaft.
3. The upward and downward bending belt conveyor with a limiting function according to claim 1, wherein the front rotating shaft and the rear rotating shaft are arranged in parallel, and the spacing distance is the sum of the reference circle radii of the two meshing gears.
4. The vertically-bending belt conveyor with a limiting function according to claim 1, wherein the front fixing rod is provided with an L-shaped supporting rod, the end of the supporting rod extends above the upper-layer conveyor belt, and the end of the supporting rod is provided with a cargo position sensor.
CN201710066996.XA 2017-02-07 2017-02-07 Take limit function's upper and lower bending type belt conveyor Active CN106586380B (en)

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