CN113697386A

CN113697386A - Chain tightening mechanism in closed-loop pipeline conveying system

Info

Publication number: CN113697386A
Application number: CN202110755154.1A
Authority: CN
Inventors: 曹建胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-11-26

Abstract

The invention relates to a chain tightening mechanism in a closed-loop pipeline conveying system, wherein a closed-loop conveying pipeline (2) is arranged between a feeding point and a discharging point in the closed-loop pipeline conveying system, a closed-loop chain (51) is arranged in the conveying pipeline (2), a plurality of pushing plate discs (52) are arranged on the closed-loop chain (51), the pushing plate discs (52) drive materials to move along the extending direction of the conveying pipeline (2), and a plurality of driving devices (1) drive the closed-loop chain (51) to move together, and the chain tightening mechanism is characterized in that: the chain tightening mechanism applies force to the closed-loop chain (51) to ensure that the closed-loop chain (51) is tightly wound with the direction changing mechanism, so that the closed-loop chain (51) is prevented from being stuck in the material conveying pipeline (2).

Description

Chain tightening mechanism in closed-loop pipeline conveying system

Technical Field

The invention relates to a pipeline conveying system, in particular to a chain tightening mechanism in a closed-loop pipeline conveying system.

Background

The long-distance pipeline material conveying is usually an technology which is not easy to realize, because the distance is long, a plurality of independent conveying pipelines are needed to be used for relay conveying, and each independent closed-loop pipeline needs to use a motor to drive a material pushing plate disc in the pipeline to move, so that the materials are driven to move forwards along the pipeline.

However, since each closed-loop pipeline is related, when one closed-loop pipeline fails, the normal operation of the whole system is affected, and thus, the existing long-distance pipeline material transportation has unstable operation, is easy to fail and cannot be really used for any long distance.

The invention has the following patent: a remote multi-drive closed-loop pipeline conveying system (application number 2021105326411) solves the problem that the pipeline conveying system cannot work normally if the synchronous work between different drive motors cannot be realized by arranging a clutch on a drive device,

however, there is also a need to solve the problem: when long distance or short distance pipeline transportation, if the chain of carrying the material is not the tight state chain and will unable normal work, light person's chain work is got up unsmoothly and can be blocked smoothly, and heavy person leads to the chain to pile up the card in the pipeline and dies.

Disclosure of Invention

The invention designs a chain tightening mechanism in a closed-loop pipeline conveying system, which solves the technical problems that: (1) when long distance or short distance pipeline transportation, if the chain of carrying the material is not the tight state chain and will unable normal work, light person's chain work is got up unsmoothly and can be blocked with invalid drive, and heavy person leads to the chain to pile up in the pipeline and blocks. (2) The existing long-distance material conveying device is unstable in operation, easy to break down and incapable of being used for any long distance.

In order to solve the technical problems, the invention adopts the following scheme:

the utility model provides a chain among closed loop pipeline conveying system mechanism that tightens, be equipped with the conveying pipeline of closed loop between material point and the unloading point in the closed loop pipeline conveying system, be equipped with the closed loop chain among the conveying pipeline, be equipped with a plurality of blevile of push dishes on the closed loop chain, blevile of push dish drives the material and removes along conveying pipeline extending direction, and a plurality of drive arrangement drive closed loop chain jointly removes its characterized in that: the chain tightening mechanism applies force to the closed-loop chain to ensure that the closed-loop chain is tightly wound with the direction changing mechanism, so that the closed-loop chain is prevented from being stuck in a material conveying pipeline.

Preferably, the chain tightening mechanism applies acting force to a closed loop chain moving in the driving device or/and the chain tightening mechanism applies acting force to a closed loop chain moving in the conveying pipeline.

Preferably, the drive means comprises a diverting pulley into which and from which the closed loop chain height is reduced; the chain tightening mechanism comprises a connecting piece and a force application piece, one end of the connecting piece is connected with the steering wheel, the other end of the connecting piece is connected with the force application piece, and the force application piece applies force to the steering wheel so that the closed-loop chain is tightened by the turning wheel.

Preferably, the chain tensioning mechanism further comprises a sliding guide and a sliding part, the sliding part is fixedly connected with the steering wheel, and the force application part applies force to the sliding part so that the closed-loop chain is tensioned by the steering wheel.

Preferably, the force application member is any one of a spring, a weight, a cylinder or a motor.

Preferably, the conveying pipeline is provided with a turning wheel, the closed-loop chain is wound on the turning wheel, so that the moving direction is changed, the chain tightening mechanism comprises a force application part and a connecting part, one end of the connecting part is connected with the turning wheel, the other end of the connecting part is connected with the force application part, and the force application part applies force to the turning wheel, so that the closed-loop chain is tightened by the turning wheel.

Preferably, the device further comprises a sensor, when the closed-loop chain is stuck, the sensor is triggered by the movement of the steering wheel or the direction-changing wheel, and the controller gives an alarm according to a signal output by the sensor.

Preferably, each driving device comprises a driving disc and a driving motor, a closed loop chain is wound on the driving disc and driven by the driving disc to move, a clutch is arranged between the driving motor and the driving disc, the clutch can separate a connecting structure between the driving disc and the driving motor when the driving motor stalls or stops due to faults, and the driving disc is changed into a driven mechanism from the driving mechanism and is not influenced by the driving motor.

The utility model provides a remote many driven closed loop pipeline conveying system, is equipped with closed loop's conveying pipeline between material loading point and the unloading point, is equipped with closed loop chain among the conveying pipeline, is equipped with a plurality of pushing ram dish on the closed loop chain, pushes away the ram dish and drives the material and remove its characterized in that along conveying pipeline extending direction: the chain transmission mechanism comprises a plurality of driving devices, and the plurality of driving devices drive the closed-loop chain to move together.

Preferably, a transmission structure is further arranged between the driving motor and the driving disc, the transmission structure comprises the clutch, and when the transmission structure fails and cannot transmit, the clutch can separate the connection structure between the driving disc and the driving motor.

Preferably, the transmission connection structure between the driving motor and the driving disk comprises any one of the following modes: the driving motor-the transmission structure-the clutch-the driving disc; or, the driving motor-the clutch-the transmission structure-the driving disc; alternatively, the driving motor-one of the transmission structures-the clutch-two of the transmission structures-the driving disk.

The transmission structure comprises a clutch, when the driving motor stalls or stops due to faults or when the transmission structure fails and cannot transmit, the clutch can enable the transmission structure to be separated from the driving motor, and the driving disc is changed into a driven mechanism from the driving mechanism and is not influenced by the driving motor.

Preferably, the clutch comprises a first transmission piece and a second transmission piece, the first transmission piece is acted by the driving motor to rotate, and the second transmission piece is connected with the driving disc; a movable pressing connecting block is arranged between the first transmission piece and the second transmission piece to realize the separation and combination of the first transmission piece and the second transmission piece;

the movable pressing connecting block is connected with an elastic body, an installation hole part is arranged in the circumferential direction corresponding to the second transmission piece or the first transmission piece, the elastic body is located in the installation hole part, the elastic body is clamped by the movable pressing connecting block and the second transmission piece or clamped by the movable pressing connecting block and the first transmission piece, and a combining part with a small space and a separating part with a large space are arranged between the inner wall of the first transmission piece and the second transmission piece.

Preferably, drive arrangement includes upper and lower floor's chain current structure and falls high mechanism, gets into and falls pushing away the flitch dish and the closed loop chain before high mechanism and be located the upper strata, leaves pushing away flitch dish and closed loop chain after falling high mechanism get into the lower floor, are equipped with upper blanking mouth on the upper strata, and the lower floor corresponds and is equipped with lower floor and connects the material mouth, and upper blanking mouth is located and is linked together with the top that lower floor connects the material mouth and both, pushes away flitch dish and closed loop chain promotion material and gets into upper blanking mouth, and the material falls into lower floor and connects the material mouth downwards under the effect of gravity, and pushing away flitch dish and closed loop chain in the lower floor connects the material mouth and drive the material once more and remove.

Preferably, the height reducing mechanism comprises a steering wheel and a steering pipeline, an inclined included angle is formed between the steering wheel and the driving disc, the steering wheel is located at the steering position of the steering pipeline, and the two pipelines of the steering pipeline are respectively used for the upper-layer chain to pass through and the lower-layer chain to pass through.

Preferably, the closed loop chain ensures good engagement of the closed loop chain with the drive disc under the action of a spring or a weight. The steering wheel prevents poor combination of the closed-loop chain and the driving disc under the action of the spring

Preferably, the conveying pipeline changes the extending direction thereof through one or more direction-changing wheels.

Preferably, the driving disc comprises an upper driving disc and a lower driving disc, the upper driving disc and the lower driving disc are arranged in parallel, a plurality of upper pushing pieces are arranged on the lower bottom surface of the upper driving disc along the circumferential direction, a same number of lower pushing pieces are correspondingly arranged on the upper bottom surface of the lower driving disc along the circumferential direction, the closed-loop chain passes through the space between the upper pushing pieces and the lower pushing pieces, and the pushing plate disc is pushed by the upper pushing pieces and the lower pushing pieces.

Preferably, each driving device comprises a driving disc, a steering wheel and a driving motor, a closed-loop chain is wound on the driving disc and the steering wheel to move, the driving motor drives the steering wheel to rotate so as to drive the closed-loop chain to move, a clutch is arranged between the driving motor and the steering wheel, when the driving motor stalls or stops due to fault, the clutch can separate a connecting structure between the steering wheel and the driving motor, and the steering wheel is changed from a driving mechanism to a driven mechanism and is not influenced by the driving motor.

Preferably, a transmission structure is further arranged between the driving motor and the steering wheel, the transmission structure comprises the clutch, and when the transmission structure fails and cannot transmit, the clutch can separate the connection structure between the steering wheel and the driving motor.

Preferably, the transmission connection structure between the driving motor and the steering wheel comprises any one of the following modes: the driving motor-the transmission structure-the clutch-the steering wheel; or, the driving motor-the clutch-the transmission structure-the steering wheel; alternatively, the driving motor-one of the transmission structures-the clutch-two of the transmission structures-the steering wheel.

Preferably, drive arrangement still include upper and lower floor's chain current structure with the directive wheel gets into pushing away the flitch dish and the closed loop chain before the directive wheel are located the upper strata, leave pushing away flitch dish and closed loop chain behind the mechanism that falls get into the lower floor, are equipped with upper blanking mouth on the upper strata, and the lower floor corresponds and is equipped with lower floor and connects the material mouth, and upper blanking mouth is located and connects the top of material mouth and both are linked together through the blanking passageway with the lower floor, pushes away flitch dish and closed loop chain promotion material and gets into upper blanking mouth, and the material falls into lower floor and connects the material mouth downwards under the effect of gravity, and the flitch dish that pushes away in the material mouth of lower floor and closed loop chain drive the material once more and remove.

Preferably, the chain conveying device further comprises a steering pipeline, an inclined included angle is formed between the steering wheel and the driving disc, the steering wheel is located at the steering position of the steering pipeline, and the two pipelines of the steering pipeline are used for allowing the upper-layer chain to pass through and the lower-layer chain to pass through respectively.

Preferably, the clutch comprises a first transmission piece and a second transmission piece, the first transmission piece is acted by the driving motor to rotate, and the second transmission piece is connected with the steering wheel; a movable pressing connecting block is arranged between the first transmission piece and the second transmission piece to realize the separation and combination of the first transmission piece and the second transmission piece; the movable pressing connecting block is connected with an elastic body, an installation hole part is arranged in the circumferential direction corresponding to the second transmission piece or the first transmission piece, the elastic body is located in the installation hole part, the elastic body is clamped by the movable pressing connecting block and the second transmission piece or clamped by the movable pressing connecting block and the first transmission piece, and a combining part with a small space and a separating part with a large space are arranged between the inner wall of the first transmission piece and the second transmission piece.

A multi-drive control method of a remote multi-drive closed-loop pipeline conveying system comprises the following steps:

when all the driving motors have the same rotating speed, the clutch enables the transmission structure between the driving motors and the driving disc to be in a combined state, and the driving motors can drive the driving disc to rotate, so that the closed-loop pipeline conveying system can continuously feed;

or when one or more driving motors stall or stop, the corresponding clutch enables the transmission structure between the driving motor and the driving disc to be in a disengaged state, the driving disc is driven by other driving motors which work normally to rotate and is not influenced by the stalling or stopping driving motor, so that the remote multi-drive closed-loop pipeline conveying system can continuously feed;

or when the transmission structure between one or more driving motors and the corresponding driving disc fails and can not transmit, the corresponding clutch enables the transmission structure between the driving motor and the driving disc to be in a disengaged state, the driving disc is driven by other driving motors to rotate and is not influenced by the driving motor which stalls or stops, and the remote multi-drive closed-loop pipeline conveying system can continuously feed materials.

Preferably, when one or more of the drive motors resumes the same speed as the other drive motors, the clutch is again engaged, and the drive motor re-drives the corresponding drive disk to rotate.

Or when the rotating speed of one or more driving motors is higher than that of other driving motors, the corresponding clutch enables the driving disc to be in a separation state with the stalling driving motor and the corresponding transmission structure, and the separation state is not influenced by the stalling driving motor and the corresponding transmission structure, so that the remote multi-drive closed-loop pipeline conveying system can continuously feed materials.

Preferably, the controller is further included, and when the controller detects that the current and/or voltage of one or more driving motors are higher or lower than normal values, the controller gives an alarm and shuts down the driving motors.

Compared with the prior art, the chain tightening mechanism in the closed-loop pipeline conveying system has the following beneficial effects:

(1) the chain tightening mechanism in the closed-loop pipeline conveying system can ensure that the closed-loop chain is wound on the turning wheel or the steering wheel in a tightening state all the time, and ensures that the closed-loop chain cannot be jammed in a driving device or a pipeline.

(2) The remote multi-drive closed-loop pipeline conveying system enables a closed-loop conveying pipeline to be simultaneously connected with a plurality of driving motors, and when one or more driving motors are in failure or a transmission structure is in failure and cannot transmit, the driving motors and the transmission mechanism can be separated through the clutch, so that the operation of the whole system cannot be influenced.

(3) According to the invention, the driving device adopts the upper-layer and lower-layer chain passing structure, so that materials do not enter the driving disc, and the abrasion of the materials on the driving disc and the pushing plate disc and the influence of the materials on the normal work of the driving disc are avoided.

(4) The invention can easily realize the upper and lower layer chain passing structure through the arrangement of the steering wheel, and ensure the matching of the steering wheel and the pushing plate disc through the arrangement of the spring, thereby realizing the back flushing dredging pipeline even if the material is blocked at the position.

(5) The invention can be suitable for various complex terrain environments, can extend the conveying pipeline according to the design direction by arranging one or more turning wheels, and is particularly suitable for mountainous regions or hilly regions.

(6) The conveying material can be solid particles or a solid-liquid mixture, and is wide in application field.

Drawings

FIG. 1: the invention discloses a three-dimensional structure schematic diagram of a remote multi-drive closed-loop pipeline conveying system;

FIG. 2: the invention discloses an appearance schematic diagram of a driving mechanism;

FIG. 3: the internal structure schematic diagram I of the driving mechanism is shown in the invention;

FIG. 4: the internal structure schematic diagram II of the driving mechanism is shown in the invention;

FIG. 5: the invention discloses a three-dimensional structure schematic diagram of a driving disc;

FIG. 6: the invention relates to a bottom view of a driving disc;

FIG. 7: the clutch is in a combined state;

FIG. 8: the clutch is in a disengaging state;

FIG. 9: the invention discloses a connecting schematic diagram of a turning wheel;

FIG. 10: the structure of the pushing plate disc is schematically shown;

FIG. 11: the structure of the charging barrel is shown schematically;

FIG. 12: a connection schematic of the clutch of the present invention;

FIG. 13: the invention discloses a schematic structure diagram of an embodiment 1 of a chain tightening mechanism in a closed-loop pipeline conveying system;

FIG. 14: the invention discloses a schematic structure diagram of an embodiment 2 of a chain tightening mechanism in a closed-loop pipeline conveying system;

FIG. 15: the invention discloses a schematic structure diagram of an embodiment 3 of a chain tightening mechanism in a closed-loop pipeline conveying system;

FIG. 16: the embodiment 4 of the chain tightening mechanism in the closed-loop pipeline conveying system is schematically shown in the structural diagram.

Description of reference numerals:

1-a drive device; 11-a drive disc; 111 — an upper drive disc; 112-lower drive disc; 113 — an upper pusher; 114-a lower push member; 12-a drive motor; 121-primary pulley; 122-a belt; 123-motor shaft; 13-a steering wheel; 14-a support frame; 15-a spring; 16-a rotating shaft; 161-material pushing sheet; 17-a blanking port; 18-material receiving port; 19-a blanking channel; 2-a material conveying pipeline; 21-a steering pipe; 22 — an inlet duct; 23-intermediate pipe; 24-an exit conduit; 3, discharging the material barrel; 31-a feeding motor; 32-rotating the auger; 33, discharging the material box; 4-a material storage barrel; 51, a chain; 52-pusher plate disc; 521-a connecting part; 522-connecting hole; 6-a clutch; 61-a first transmission member; 62-a second transmission member; 63-a movable compression connecting block; 64-an elastomer; 65-a joint; 66 — a detachment portion; 67-mounting holes; 68-a keyway; 71-a first direction-changing wheel; 72-a second direction-changing wheel; 81-sliding guide; 82-a slide; 83-a traction member; 84-a traction diversion; 85-a force application member; 86-a sensor; 87-a spring; 88-fixing the limit end.

Detailed Description

The invention is further described below with reference to fig. 1 to 16:

as shown in fig. 1, the remote closed-loop pipeline transportation device of the present invention is not only suitable for long-distance transportation of 1 km or more, but also suitable for short-distance material transportation.

A closed-loop conveying pipeline 2 is arranged between the lower material feeding barrel 3 and the material storage barrel 4, a plurality of driving devices 1 are arranged according to the length and the conveying distance of the conveying pipeline 2, the driving devices 1 drive a closed-loop chain 51 in the conveying pipeline 2 to move, and a material pushing plate disc 52 on the closed-loop chain 51 can drive materials to move along the extending direction of the conveying pipeline 2.

As shown in fig. 2, since the distance of the feeding pipe 2 is too long, a plurality of driving devices 1 are required to simultaneously move the closed-loop chain 51. Each driving device 1 comprises a bracket, a driving disc 11 and a driving motor 12, wherein the driving motor 12 is installed on the bracket, the driving disc 11 is rotated by the driving motor 12 through a transmission structure, and a closed-loop chain 51 provided with a pushing plate disc 52 moves along the extending direction of the conveying pipeline 2 under the action of the driving disc 11.

As shown in fig. 3 and 4, since the material transported by the material transporting pipe 2 is solid particles or a solid-liquid mixture, when the pushing material plate 52 carries the material to move along the extending direction of the material transporting pipe 2, the following problems occur when the driving disk 11 contacts the material on the pushing material plate 52: 1. material particles may get stuck in the driving disc 11, affecting the normal operation of the driving disc 11. 2. Material particles may increase the wear of the drive plate 11 and pusher plate 52. 3. The materials accumulated on the driving plate 11 are easy to decay if the feed is fed for a long time, and the safety of the feed is affected. Therefore, the material needs to be separated from the pushing plate disc 52 before entering the driving disc 11, and the feed is combined with the pushing plate disc 52 after the pushing plate disc 52 leaves the driving disc 11, so that the problem can be effectively solved.

The driving device 1 of the invention adopts an upper layer chain passing structure and a lower layer chain passing structure to well solve the problems. The material pushing plate disc 52 and the closed-loop chain 51 are located on the upper layer before entering the height lowering mechanism, the material pushing plate disc 52 and the closed-loop chain 51 enter the lower layer after leaving the driving disc 11 through the height lowering mechanism, meanwhile, an upper layer blanking port 17 is arranged on the upper layer, a lower layer receiving port 18 is correspondingly arranged on the lower layer, the upper layer blanking port 17 is located above the lower layer receiving port 18, the upper layer blanking port and the lower layer receiving port are communicated through a blanking channel 19, the material pushing plate disc 52 and the closed-loop chain 51 push the material to enter the upper layer blanking port 17, the material falls into the lower layer receiving port 18 downwards under the action of gravity, and the material pushing plate disc 52 and the closed-loop chain 51 in the lower layer receiving port 18 drive the material to move again.

The upper and lower layer chain passing structure can be realized by various ways, wherein the most effective and simple structure can be realized by adding a steering wheel 13 and a steering pipeline 21. The steering wheel 13 is obliquely arranged, the steering wheel 13 is positioned at the lowest end of the steering pipeline 21, and the two parallel pipelines of the steering pipeline 21 are used for the upper-layer chain to pass through and the lower-layer chain to pass through respectively. The closed-loop chain 51 is turned around the edge of the steering wheel 13, the highest end of the steering wheel 13 enables the upper layer chain to enter the driving disc 11 after passing through the upper layer chain, the lowest end of the steering wheel 13 enables the lower layer chain to exit the driving disc 11, and finally the upper layer chain is positioned above the lower layer chain before entering the driving disc 11.

The steering wheel 13 can rotate under the action of the pushing plate disc 52 and the closed-loop chain 51 to reduce abrasion, meanwhile, the steering wheel 13 is acted by the spring 15 to enable the steering wheel 13 to be well matched with the pushing plate disc 52, and when materials are blocked at the position, the spring 15 can be used for realizing recoil to dredge the conveying pipeline 2.

The concrete structure is as follows: a plurality of supporting frames 14 are provided with through holes, one end of the positioning rod is connected with the rotating shaft of the steering wheel 13, the other end of the positioning rod is connected with the through holes passing through the plurality of supporting frames 14, a spring 15 is sleeved at the other end of the positioning rod, one end of the spring 15 is limited on one supporting frame 14, and the other end of the spring 15 is limited on the positioning rod. Therefore, the steering wheel 13 can be brought into abutment with the pusher plate 52 by the action of the spring 15.

As shown in fig. 4, the driving motor 12 drives the primary pulley 121 to rotate, the secondary pulley is connected to the clutch 6, and the primary pulley 121 and the secondary pulley are driven by a belt 122. The transmission between the drive motor 12 and the clutch 6 can be of many types, and this is merely a common transmission.

As shown in fig. 5 and 6, the specific structure of the drive disk 11 is as follows: the chain pushing device comprises an upper driving disk 111 and a lower driving disk 112, wherein the upper driving disk 111 and the lower driving disk 112 are arranged in parallel, a plurality of upper pushing pieces 113 are arranged on the lower bottom surface of the upper driving disk 111 along the circumferential direction, a same number of lower pushing pieces 114 are correspondingly arranged on the upper bottom surface of the lower driving disk 112 along the circumferential direction, a closed-loop chain 51 passes through a space between the upper pushing pieces 113 and the lower pushing pieces 114, and a pushing plate disk 52 is pushed by the upper pushing pieces 113 and the lower pushing pieces 114. To reduce friction, the upper and

lower pushers

113, 114 may rotate.

The upper driving disk 111 and the lower driving disk 112 are connected to the rotating shaft 16 and rotated by the action of the rotating shaft 16. The lower end of the rotating shaft 16 is connected with the driving motor 12 through the clutch 6 and the transmission structure. The rotating shaft 16 is further provided with a material pushing sheet 161, the material pushing sheet 161 can be driven by the rotating shaft 16 to rotate, and the material accumulated below the lower driving disk 112 can be timely guided into a channel between the upper layer blanking port 17 and the lower layer receiving port 18 by the rotating material pushing sheet 161.

As shown in fig. 7 and 8, one of the points of the invention is the clutch 6. The reason why the clutch 6 is used is: when the material conveying pipeline 2 is too long and only one closed-loop chain 51 exists, the closed-loop chain 51 is driven to move by the cooperation of the driving motors 12 of the driving devices 1, but if one or more of the driving motors 12 has a fault or stall, the driving motor 12 can not provide rotating power for the closed-loop chain 51 any more, and can also be an obstacle to the normal operation of the closed-loop chain 51.

The function of the clutch 6 is therefore that if there is a fault or stall in one or more of the drive motors 12 (but at least one drive motor 12 is functioning properly), the clutch 6 will disengage the rotation axis 16 of the corresponding drive disc 11 from the gearing of the corresponding faulty drive motor 12, the drive disc 11 becoming a driven element from the driving element of the chain and no longer being affected by its corresponding drive motor 12.

As shown in fig. 7 and 8, a structure of the clutch 6 of the present invention is as follows: comprises a first transmission piece 61, wherein the first transmission piece 61 is connected with the driving motor 12 through a transmission mechanism, and the driving motor 12 can enable the first transmission piece 61 to rotate. The first transmission member 61 is provided with a second transmission member 62, and the second transmission member 62 is connected to the rotating shaft 16. A movable pressing connecting block 63 is arranged between the first transmission piece 61 and the second transmission piece 62 to realize the separation and the combination of the first transmission piece and the second transmission piece.

The outer wall of the first transmission piece 61 is provided with a key groove 68, and the fixed connection between the driven pulley and the first transmission piece 61 is realized through the matching of a key and the key groove 68. The transmission structure between the driving motor 12 and the driving disk 11 is as follows: the drive motor 12-primary pulley 121-belt 122-secondary pulley-first transmission piece 61 (one of the clutch parts) -movable pressing connection piece 63 (one of the clutch parts) -second transmission piece 62 (one of the clutch parts) -rotating shaft 16-drive plate 11.

The above-described connection structure can be summarized as a connection structure between the drive motor 12 and the drive disk 11 as follows: the driving motor 12, the transmission mechanism 1, the clutch, the transmission mechanism 2 and the driving disc 11. Besides, the connection structure between the driving motor 12 and the driving disk 11 may also be as follows: driving motor 12-transmission mechanism 3-clutch-driving disk 11. Alternatively, the drive motor 12, the reduction mechanism, the clutch, and the drive plate 11.

One end of the movable pressing connecting block 63 is connected with an elastic body 64, a mounting hole part 67 is arranged in the circumferential direction of the second transmission piece 62, the elastic body 64 is positioned in the mounting hole part 67 or a part of the movable pressing connecting block 63 and the whole elastic body 64 are positioned in the mounting hole part 67, and a combining part 65 with a small space and a disengaging part 66 with a large space are arranged between the inner wall of the first transmission piece 61 and the second transmission piece 62.

As shown in fig. 7, when all the driving motors 12 work normally (at the same rotation speed) and the rotation speed meets the design requirement, the work of each driving motor can be transmitted to the closed-loop chain 51, the movable pressing connection block 63 is located at the joint portion 65, the movable pressing connection block 63 is simultaneously pressed by the first transmission piece 61 and the second transmission piece 62, and the driving motors 12 smoothly drive the rotating shaft 16 to rotate.

As shown in fig. 8, when one or more driving motors 12 are not operated normally (including deceleration or stop) and the rotation speed is lower than that of the driving motor which is operated normally, the first transmission member 61 is rotated slowly so that the movable pressing connection block 63 is separated from the inner wall of the first transmission member 61 and moved from the joint portion 65 to the separation portion 66 by the elastic body 64, and the first transmission member 61 rotates idly without affecting the rotation of the second transmission member 62 and the rotating shaft 16.

The abnormal operation of one or more driving motors 12 only causes the driving force of the closed-loop chain 51 to become small and the running speed to become slow, but does not cause the stop of the whole system, when one or more driving motors 12 return to normal operation or the rotating speed is the same as that of other driving motors, the clutch 6 is in the engaged state again, and the driving motor 12 drives the corresponding driving disk 11 to rotate again.

Fig. 8 is a schematic view for easy understanding, and the actual movable pressing connection block 63 may not be visible to the naked eye, so fig. 8 does not represent an actual situation and is only used for reference.

Therefore, the clutch 6 can isolate the driving motor from the whole chain transmission system when the driving motor fails or stalls, so that the failed or stalled driving motor does not influence the normal operation of the whole chain. One of the core points of the present invention is the clutch 6, which can ensure the stability of the operation of the pipeline transportation system because any number of driving motors can be connected on a closed loop chain and the driving motors are not needed to be worried about to influence the movement of the whole chain due to the failure.

Meanwhile, the clutch 6 of the present invention can also automatically move the movable pressing connection block 63 to the joint 65 when the driving motor 12 returns to normal operation, so that the driving motor 12 can effectively output.

The construction of the clutch 6 can be varied and is not limited to the construction of fig. 7 and 8, the clutch of fig. 7-8 being only a preferred embodiment.

As shown in fig. 9, the long-distance pipeline transportation is limited by the influence of terrain and mountain terrain, the material conveying pipeline 2 cannot extend straight, so that the unavoidable existence of the material conveying pipeline 2 requires a direction change design, and in order to ensure the normal operation of the closed-loop chain 51 and the pusher plate disc 52, the directions of the closed-loop chain 51 and the pusher plate disc 52 can be changed by arranging the first direction change wheel 71. The first direction-changing wheel 71 may be a driven wheel or a driving wheel. If one direction-changing wheel cannot achieve the required trend, the second direction-changing wheel 72 can be used for matching, and even more direction-changing wheels can be matched.

As shown in fig. 10, the connection structure of the closed-loop chain 51 and the pushing plate disc 52 is as follows: two connecting parts 521 are respectively arranged on two sides of each pusher plate disc 52, each connecting part 521 comprises a connecting hole 522, and the connection between two adjacent pusher plate discs 52 is realized by the connection between two ends of the closed-loop chain 51 and the connecting hole 522.

As shown in fig. 11, the lower material cylinder 3 can be a conical hopper, the discharge port of the lower material cylinder 3 is located at the lowest end, the discharge port of the lower material cylinder 3 is provided with a feeding motor 31, the feeding motor 31 is connected with a rotary auger 32, the rotary auger 32 feeds the material to a discharge box 33, and the lower end of the discharge box 33 is communicated with the material conveying pipeline 2.

Similarly, the top or upper part of the material storage barrel 4 is communicated with the material conveying pipeline 2, and the material in the material conveying pipeline 2 falls into the material storage barrel 4 through gravity.

The charging hopper 3 and the storage hopper 4 are only one embodiment of the invention, and other types of storage and charging devices are also possible.

The material conveyed by the remote multi-drive closed-loop pipeline conveying system can be solid particles, such as feed or mineral aggregate and the like, or a solid-liquid mixture. The delivery of feed has particular advantages: can prevent people or vehicles from entering the pig farm and prevent the hog cholera virus from entering the pig farm.

In addition, long distance pipeline transportation material is particularly suitable for pig feed transportation mode, and at present, African pigs are heavily abused, and in order to reduce contact between people or vehicles and pig farms, people or vehicles are generally expected to be prevented from entering the pig farms through pipeline transportation of pig feed.

As shown in fig. 12, the drive motor 12 is directly connected to the drive plate 11 via the clutch 6. The driving motor 12 may be a speed-adjustable driving motor, and the motor shaft 123 thereof is directly and fixedly connected with the second transmission member 62 of the clutch 6, and the first transmission member 61 of the clutch is fixedly connected with the driving disc 11. The connection structure is simpler, and the normal work of the clutch 6 can be realized without using an additional transmission structure.

Although not shown in the above figures, the driving motor 12 may be selectively connected not only to the driving disk 11 but also to the steering wheel 13, and if connected to the steering wheel 13, the driving disk 11 becomes the driving disk.

The concrete structure is as follows: each driving device 1 comprises a driving disc, a steering wheel 13 and a driving motor 12, a closed-loop chain 51 is wound on the driving disc and the steering wheel 13 to move, the driving motor 12 drives the steering wheel 13 to rotate so as to drive the closed-loop chain 51 to move, a clutch 6 is arranged between the driving motor 12 and the steering wheel 13, when the driving motor 12 stalls or stops due to faults, the clutch 6 can enable a connecting structure between the steering wheel 13 and the driving motor 12 to be separated, and the steering wheel 13 is changed into a driven mechanism from the driving mechanism and is not influenced by the driving motor 12.

There is still transmission structure between driving motor 12 and directive wheel 13, and including clutch 6 in the transmission structure, when transmission structure broke down and can not transmit, clutch 6 can make the connection structure between directive wheel 13 and the driving motor 12 separate.

The transmission connection structure between the driving motor 12 and the steering wheel 13 comprises any one of the following modes: a driving motor 12, a transmission structure, a clutch and a steering wheel 13; or, the driving motor 12-clutch-transmission structure-steering wheel 13; alternatively, the drive motor 12-one of the transmission structures-the clutch-two of the transmission structures-the steering wheel 13.

The driving device 1 further comprises an upper layer chain passing structure, a lower layer chain passing structure and a steering wheel 13, a material pushing plate disc 52 and a closed loop chain 51 which are arranged before entering the steering wheel 13 are located on the upper layer, the material pushing plate disc 52 and the closed loop chain 51 which are arranged after leaving the height reducing mechanism enter the lower layer, an upper layer blanking port 17 is arranged on the upper layer, a lower layer material receiving port 18 is correspondingly arranged on the lower layer, the upper layer blanking port 17 is located above the lower layer material receiving port 18 and communicated with the upper layer blanking port, the material pushing plate disc 52 and the closed loop chain 51 push the material to enter the upper layer blanking port 17, the material falls into the lower layer material receiving port 18 downwards under the action of gravity, and the material pushing plate disc 52 and the closed loop chain 51 in the lower layer material receiving port 18 drive the material to move again.

The chain transmission device further comprises a steering pipeline 21, an inclined included angle is formed between the steering wheel 13 and the driving disc, the steering wheel 13 is located at the steering position of the steering pipeline 21, and the two pipelines of the steering pipeline 21 are used for allowing an upper-layer chain to pass through and an lower-layer chain to pass through respectively.

The clutch 6 comprises a first transmission piece 61 and a second transmission piece 62, wherein the first transmission piece 61 is acted by the driving motor 12 to rotate, and the second transmission piece 62 is connected with the steering wheel 13; a movable pressing connecting block 63 is arranged between the first transmission piece 61 and the second transmission piece 62 to realize the separation and combination of the two; the movable pressing connecting block 63 is connected with an elastic body 64, a mounting hole portion 67 is arranged in the circumferential direction of the second transmission piece 62 or the first transmission piece 61 correspondingly, the elastic body 64 is positioned in the mounting hole portion 67, the elastic body 64 is clamped between the movable pressing connecting block 63 and the second transmission piece 62 or between the movable pressing connecting block 63 and the first transmission piece 61, and a combining portion 65 with a small space and a disengaging portion 66 with a large space are arranged between the inner wall of the first transmission piece 61 and the second transmission piece 62.

The clutch control principle of the invention is as follows:

1. the driving motor acts on the driving disk mode:

the first normal working mode is as follows: when the rotating speed of the driving motor 12 is within the cooperative range, the driving motor 12 is directly in a combined state with the driving disc 11 through the clutch 6, the driving motor 12 can drive the driving disc 11 to rotate, and the closed-loop pipeline conveying system can continuously feed materials.

And a second normal working mode: when the rotating speeds of all the driving motors 12 are in the cooperative range, the driving motors 12 are in a combined state with the driving disc 11 through the transmission part, the transmission part comprises the clutch 6, the clutch 6 enables the driving motors 12 and the driving disc 11 to be in the combined state, the driving motors 12 drive the driving disc 11 to rotate, and the closed-loop pipeline conveying system with multiple remote drives continuously feeds materials.

Handling failure case one: when one or more driving motors 12 stall or stop, the corresponding clutch 6 enables the driving motor 12 and the driving disk 11 to be in a separation state, the driving disk 11 is driven by other driving motors which work normally to rotate and is not influenced by the driving motor 12 which stalls or stops, and the remote multi-drive closed-loop pipeline conveying system continuously feeds materials;

handling failure case two: when one or more driving motors 12 and the corresponding driving discs 11 are in failure and cannot drive, the corresponding clutches 6 enable the driving motors 12 and the driving discs 11 to be in a disengaged state, the driving discs 11 are driven by other driving motors to rotate and are not influenced by the stalling or stopping driving motors 12, and the remote multi-drive closed-loop pipeline conveying system continuously feeds materials.

Processing a failure situation three: when the rotating speed of one or more driving motors 12 is higher than that of other driving motors, the clutches 6 of the other driving motors enable the corresponding driving discs 11 and the other driving motors 12 to be in a disengaged state without being influenced by the stalling of the other driving motors, and the long-distance multi-driving closed-loop pipeline conveying system continuously feeds materials.

Handling failure case four: when the rotating speed of one or more driving motors 12 is higher than that of other driving motors, the clutches 6 of the other driving motors enable the corresponding driving disks 11 and the corresponding transmission parts to be in a disengaged state and are not influenced by the stalling of the other driving motors, and the remote multi-drive closed-loop pipeline conveying system can continuously feed materials.

2. Under the mode that the driving motor acts on the steering wheel:

the first normal working mode is as follows: when the rotating speed of the driving motor 12 is within the cooperative range, the driving motor 12 is directly in a combined state with the steering wheel 13 through the clutch 6, the driving motor 12 can drive the steering wheel 13 to rotate, and the closed-loop pipeline conveying system can continuously feed materials.

And a second normal working mode: when the rotating speeds of all the driving motors 12 are in the cooperative range, the driving motors 12 are in a combined state with the steering wheels 13 through transmission parts, the transmission parts comprise the clutches 6, the clutches 6 enable the driving motors 12 and the steering wheels 13 to be in the combined state, the driving motors 12 drive the steering wheels 13 to rotate, and the remote multi-drive closed-loop pipeline conveying system continuously feeds materials.

Processing a failure situation three: when one or more driving motors 12 stall or stop, the corresponding clutch 6 enables the driving motors 12 to be in a disengaged state with the steering wheels 13, the steering wheels 13 are driven by other driving motors which work normally and are not influenced by the driving motors 12 which stall or stop, and the long-distance multi-driving closed-loop pipeline conveying system continuously feeds materials.

Processing a failure situation three: when one or more transmission parts between the driving motor 12 and the corresponding driving disk 11 or the corresponding steering wheel 13 are in failure and cannot transmit, the corresponding clutch 6 enables the driving motor 12 and the steering wheel 13 to be in a disengaged state, the steering wheel 13 is driven by other driving motors to rotate and is not influenced by the driving motor 12 which stalls or stops, and the remote multi-driving closed-loop pipeline conveying system continuously feeds materials.

Handling failure case four: when the rotating speed of one or more driving motors 12 is higher than that of other driving motors, the clutches 6 of the other driving motors enable the corresponding steering wheels 13 and the other driving motors 12 to be in a disengaged state and are not influenced by the stalling of the other driving motors, and the long-distance multi-drive closed-loop pipeline conveying system continuously feeds materials.

Handling failure case four: when the rotating speed of one or more driving motors 12 is higher than that of other driving motors, the clutches 6 of the other driving motors enable the corresponding steering wheels 13 and the corresponding transmission parts to be in a disengaged state and are not influenced by the stalling of the other driving motors, and the remote multi-drive closed-loop pipeline conveying system can continuously feed materials.

As shown in fig. 13, the first structure of the chain tightening mechanism includes a sliding guide 81 and a sliding member 82, the sliding member 82 is fixedly connected to the diverting pulley 13, and the urging member 85 urges the sliding member 82 so as to tighten the closed-loop chain 51 by the diverting pulley 13. The force applying member is a weight which is connected to the slider 82 via a pull cord and a direction changing pulley.

As shown in fig. 14, the second structure of the chain tightening mechanism comprises a spring 87 and a fixed limit end 88, one end of the spring 87 is connected with the fixed limit end 88, and the other end of the spring acts on the direction-changing wheel to ensure that the closed-loop chain 51 wound on the direction-changing wheel is always in a tightened state.

As shown in fig. 15, the third structure of the chain tightening mechanism includes a pulling member 83, a force applying member 85, and a pulling direction changing member 84, wherein one end of the pulling member 83 is connected to the first direction changing wheel 71, and one end of the pulling member 83 bypasses the pulling direction changing member 84 and is connected to the force applying member 85. The traction member 83 is a traction rope, the traction direction changing member 84 is a fixed pulley, and the force application member 85 is a weight.

As shown in fig. 16, the fourth structure of the chain tensioner is a modification of the third structure, which does not use a fixed pulley.

The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The utility model provides a chain among closed loop pipeline conveying system mechanism that tightens, be equipped with closed loop conveying pipeline (2) between material point and the unloading point in the closed loop pipeline conveying system, be equipped with closed loop chain (51) in conveying pipeline (2), be equipped with a plurality of ejector pad dishes (52) on closed loop chain (51), ejector pad dish (52) drive the material and remove along conveying pipeline (2) extending direction, and a plurality of drive arrangement (1) drive closed loop chain (51) jointly remove its characterized in that: the chain tightening mechanism applies force to the closed-loop chain (51) to ensure that the closed-loop chain (51) is tightly wound with the direction changing mechanism, so that the closed-loop chain (51) is prevented from being stuck in the material conveying pipeline (2).

2. The chain tensioning mechanism in a closed-loop pipe conveying system according to claim 1, wherein: the chain tightening mechanism applies acting force to a closed loop chain (51) moving in the driving device (1) or/and the chain tightening mechanism applies acting force to a closed loop chain (51) moving in the material conveying pipeline (2).

3. The chain tensioning mechanism in a closed-loop pipe conveying system according to claim 2, wherein: the drive device (1) comprises a diverting pulley (13), the height of a closed loop chain (51) entering the diverting pulley (13) and leaving the diverting pulley (13) is reduced; the chain tightening mechanism comprises a connecting piece and a force application piece, one end of the connecting piece is connected with the steering wheel, the other end of the connecting piece is connected with the force application piece, and the force application piece applies force to the steering wheel (13) so that the closed-loop chain (51) is tightened by the turning wheel.

4. The chain tensioning mechanism in a closed-loop pipe conveying system according to claim 3, wherein: the chain tightening mechanism further comprises a sliding guide piece (81) and a sliding piece (82), the sliding piece (82) is fixedly connected with the steering wheel (13), and the force application piece applies force to the sliding piece (82) so that the closed-loop chain (51) is tightened by the steering wheel (13).

5. The chain tensioner mechanism in a closed-loop pipe conveying system according to claim 3 or 4, characterized in that: the force application part is any one of a spring, a heavy object, an air cylinder, an oil cylinder or a motor.

6. The chain tensioning mechanism in a closed-loop pipe conveying system according to claim 2, wherein: the conveying pipeline (2) is provided with a turning wheel, a closed-loop chain (51) is wound on the turning wheel, so that the moving direction is changed, the chain tightening mechanism comprises a force application part and a connecting part, one end of the connecting part is connected with the turning wheel, the other end of the connecting part is connected with the force application part, and the force application part applies force to the turning wheel, so that the closed-loop chain (51) is tightened by the turning wheel.

7. The chain tensioning mechanism in a closed-loop pipe conveying system according to claim 6, wherein: the force application part is any one of a spring, a heavy object, an air cylinder, an oil cylinder or a motor.

8. The chain tensioner mechanism in a closed-loop piping system according to any of claims 2-7, wherein: the steering wheel or the turning wheel moves to trigger the sensor (86) when the closed-loop chain (51) is stuck, and the controller gives an alarm according to a signal output by the sensor (86).

9. The chain tensioner mechanism in a closed-loop piping system according to any of claims 1-8, wherein: each driving device (1) comprises a driving disc (11) and a driving motor (12), a closed-loop chain (51) is wound on the driving disc (11) and driven by the driving disc (11) to move, a clutch (6) is arranged between the driving motor (12) and the driving disc (11), the clutch (6) can enable a connecting structure between the driving disc (11) and the driving motor (12) to be separated when the driving motor (12) stalls or stops due to faults, and the driving disc (11) is changed from a driving mechanism to a driven mechanism and is not influenced by the driving motor (12).