CN109625773B - Telescopic conveying line device and stretching method and contraction method thereof - Google Patents

Telescopic conveying line device and stretching method and contraction method thereof Download PDF

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Publication number
CN109625773B
CN109625773B CN201910063757.8A CN201910063757A CN109625773B CN 109625773 B CN109625773 B CN 109625773B CN 201910063757 A CN201910063757 A CN 201910063757A CN 109625773 B CN109625773 B CN 109625773B
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section
conveying unit
conveying
unit
transmission unit
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CN109625773A (en
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杨晖伟
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Yang Huiwei
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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
    • B65G15/26Conveyors 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 extensible, e.g. telescopic

Abstract

A telescopic conveying line device comprises a plurality of sections of conveying units; each section of conveying unit comprises a left side frame strip and a right side frame strip which extend longitudinally, a plurality of conveying rollers which extend transversely are arranged between the left side frame strip and the right side frame strip, and the conveying rollers are sequentially arranged along the longitudinal direction; when the telescopic conveying line device is in an extension state, all the sections of conveying units are sequentially connected along the longitudinal direction; in every two adjacent sections of transmission units, the rear end of the side frame strip of the front section of transmission unit is provided with a front buckling piece, the front end of the side frame strip of the rear section of transmission unit is provided with a rear buckling piece, and the rear buckling piece of the rear section of transmission unit and the front buckling piece of the front section of transmission unit form a buckling matching relationship; each section of the conveying unit is also provided with a swing arm type undercarriage; and the lifting bracket and a vertical driving mechanism for driving the lifting bracket to vertically lift are also arranged. The invention also provides a contraction method and an extension method of the telescopic conveying line device. The invention can realize longitudinal extension and flattening of the surface after longitudinal extension.

Description

Telescopic conveying line device and stretching method and contraction method thereof
Technical Field
The invention belongs to the technical field of conveying devices, and particularly relates to a telescopic conveying line device and an extending method and a retracting method thereof.
Background
The telescopic conveying device is widely applied to logistics systems, and is particularly applied to container loading work of containers. When the container is used for packing goods, the goods are usually carried by an operator to enter the container, the goods are put out of the container, and then the goods are carried in again, so that the operation is repeated continuously, and the personnel need to go back and forth for many times. Because the container is originally saved, the volume is large, the longitudinal length is large, the working intensity of operators is high, and the working efficiency is low.
Therefore, a conveying line device is designed, a plurality of conveying rollers extending transversely are densely arranged on the conveying line device, and the conveying rollers are sequentially arranged along the longitudinal direction; when the goods are transferred, the goods roll forward on the surface of each transfer roller of the conveying line device. Since the distance over which the goods have to be transported is long, this means that the length over which the conveyor line arrangement extends must be sufficiently large. In order to make the conveying line device occupy no space at ordinary times (in a non-use state), people try to design the conveying line device into a structure form capable of longitudinally extending and contracting, namely the conveying line device is composed of a front section and a rear section of conveying units, the front section and the rear section of conveying units can be longitudinally unfolded or longitudinally folded when necessary, and the front section of conveying unit is matched with a tractor. Therefore, before goods need to be conveyed, the tractor pulls each section of the conveying unit to stretch out along the longitudinal direction; after the goods are conveyed, the sections of the conveying units are pushed by the tractor to contract (furl) in the longitudinal direction.
The structure of the prior representative telescopic conveying line device is shown in fig. 1 and fig. 2, and the telescopic conveying line device adopts a sleeving and inserting structure, when the telescopic conveying line device is folded, the foremost conveying unit 1 is inserted into the second conveying unit 2, the second conveying unit 2 is inserted into the third conveying unit 3, the third conveying unit 3 is inserted into the fourth conveying unit 4, and the like in sequence as shown in fig. 1. The defects are as follows: when the telescopic conveying line device is extended, the surfaces of every two adjacent sections of conveying units are not in the same vertical position, and a drop exists between the two conveying units to form a step 9, as shown in fig. 2. Like this, when the goods is through the operation step, because the drop can produce vibrations, it is unstable. In addition, the existing telescopic conveying line device is complex in structure and troublesome to control.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned disadvantages and to provide a retractable type wire feeding device, an extending method and a retracting method thereof, which can achieve longitudinal extension and retraction and have a flat surface after longitudinal extension.
The purpose can be realized according to the following scheme: a telescopic conveying line device comprises a plurality of sections of conveying units; each section of conveying unit comprises a left side frame strip and a right side frame strip which extend longitudinally, a plurality of conveying rollers which extend transversely are arranged between the left side frame strip and the right side frame strip, and the conveying rollers are sequentially arranged along the longitudinal direction; when the telescopic conveying line device is in an extension state, all the sections of conveying units are sequentially connected along the longitudinal direction; the transmission unit is characterized in that in every two adjacent sections of transmission units, the rear end of the side frame strip of the front section of transmission unit is provided with a front buckling piece, the front end of the side frame strip of the rear section of transmission unit is provided with a rear buckling piece, the rear buckling piece of the rear section of transmission unit and the front buckling piece of the front section of transmission unit form a buckling fit relation, and the relative movement direction of the two during buckling or tripping is vertical; in the process of gradually buckling the front buckling piece and the rear buckling piece, the movement direction of the rear buckling piece relative to the front buckling piece is upward; when the two are gradually released, the movement direction of the rear buckling piece relative to the front buckling piece is downward; when the rear buckling piece and the front buckling piece are buckled, the vertical positions of the side frame strips of the front and rear conveying units are the same, the vertical positions of the conveying rollers of the front and rear conveying units are the same, and the rear end of the side frame strip of the front conveying unit is next to the front end of the side frame strip of the rear conveying unit;
each section of the conveying unit is also provided with a swing arm type undercarriage, each swing arm type undercarriage comprises a supporting leg and a servo cylinder, the supporting legs are hinged with the side frame strips, the servo cylinders drive the corresponding supporting legs to swing back and forth so as to realize the conversion of the supporting legs between an upright state and a horizontal state, and the swing ends of the supporting legs are provided with rollers; the supporting legs of the conveying units have the same height;
the rear end of the last section of conveying unit can be longitudinally and slidably arranged on the longitudinal guide rail; when the telescopic conveyor line device is in an extended state, the rear end of the last section of the conveying unit is positioned above the front end part of the longitudinal guide rail.
And the tractor is connected with the foremost section of the transmission unit.
In each two adjacent sections of transmission units, the front buckling piece of the front section of transmission unit is provided with a first hook opening and a first hook tip, the first hook tip is positioned behind the first hook opening, and the first hook opening faces downwards; the rear fastener of the rear section of the conveying unit is provided with a second hook opening and a second hook tip, the second hook tip is positioned in front of the second hook opening, and the second hook opening faces upwards; when the front fastener and the rear fastener are fastened, the first hook point is fastened into the second hook opening, and the second hook point is fastened into the first hook opening.
A contraction method of a telescopic conveying line device adopts the telescopic conveying line device, the number of the sections of a conveying unit of the telescopic conveying line device is N (N is a natural number more than 3); before the telescopic conveying line device starts to contract, the telescopic conveying line device is in a longitudinal extending state, all sections of conveying units are sequentially connected from front to back, and a first section of conveying unit, a second section of conveying unit, … …, an N-1 section of conveying unit and an Nth section of conveying unit are sequentially arranged from front to back; in every two adjacent sections of the conveying units, a front buckling piece of the front section of the conveying unit and a rear buckling piece of the rear section of the conveying unit are buckled together; the side frame strips of each section of conveying unit are positioned at the same height position, and the conveying rollers of each section of conveying unit are positioned at the same height position; the supporting legs of each section of the conveying unit are in an upright state, and the rollers of each supporting leg touch the ground; the rear end of the Nth section of conveying unit is supported on the lifting support, the rear end of the Nth section of conveying unit is positioned on the front end part of the longitudinal guide rail of the lifting support, and the gravity center of the Nth section of conveying unit is positioned in front of the lifting support; the tractor is connected with the front end of the first section of transmission unit;
the steps of the whole shrinking process are as follows in sequence:
(1) the Nth section of conveying unit is pushed back to the upper part of the lifting support, and the method comprises the following specific steps: the tractor moves backwards and pushes the first section of the transmission unit to the Nth section of the transmission unit to move backwards, after the gravity center of the Nth section of the transmission unit moves above the lifting bracket, the servo cylinder of the Nth section of the transmission unit drives the corresponding supporting leg to swing so that the supporting leg becomes a horizontal state, then, when the whole Nth section of conveying unit completely moves above the lifting support, the rear end of the Nth section of conveying unit comes to the upper surface of the rear end part of the longitudinal guide rail of the lifting support, the tractor stops moving, then the vertical driving mechanism drives the lifting support to descend, the Nth section of conveying unit descends along with the N section of conveying unit, a rear buckling piece of the Nth section of conveying unit moves downwards relative to a front buckling piece of the Nth-1 section of conveying unit, and then the rear buckling piece of the Nth section of conveying unit and the front buckling piece of the Nth-1 section of conveying unit are buckled, so that the operation process of pushing the Nth section of conveying unit backwards to the upper part of the lifting support is completed;
(2) sequentially pushing each section of conveying unit back to the upper part of the lifting bracket according to the sequence from the N-1 section of conveying unit to the second section of conveying unit;
the specific sub-steps of pushing the Mth section of conveying unit backwards to the upper part of the lifting bracket are as follows (M is any natural number which is less than N and is more than 1): the tractor moves backwards to push the first section conveying unit to the Mth section conveying unit to move backwards, when the gravity center of the Mth section conveying unit moves above the M +1 th section conveying unit, a servo cylinder of the Mth section conveying unit drives a corresponding supporting leg to swing to enable the supporting leg to be in a horizontal state, then, when a rear fastening piece of the Mth section conveying unit is arranged right above a rear fastening piece of the M +1 th section conveying unit, the tractor stops moving, then a vertical driving mechanism drives a lifting support to descend, the Mth section conveying unit and all sections of conveying units below the Mth section conveying unit descend along with the M section conveying unit, a rear fastening piece of the Mth section conveying unit moves downwards relative to a front fastening piece of the M-1 th section conveying unit, a rear fastening piece of the Mth section conveying unit is disengaged from a front fastening piece of the M-1 th section conveying unit, and the Mth section conveying unit is pushed backwards to the upper part of the lifting support, then, the M-1 st section of conveying unit is pushed backwards to the upper part of the lifting bracket;
(3) the first section of conveying unit is pushed back to the upper part of the lifting support, and the method comprises the following specific steps: the tractor moves backwards to push the first section of conveying unit to move backwards, when the gravity center of the first section of conveying unit moves to the position above the second section of conveying unit, the servo cylinder of the first section of conveying unit drives the corresponding supporting leg to swing so that the supporting leg becomes a horizontal state, and then when the front fastener of the first section of conveying unit comes to the position right above the front fastener of the second section of conveying unit, the tractor stops moving backwards.
After the step (3) is completed, all the conveying units are in a folded state of being overlapped up and down, the conveying units of all the sections are arranged from top to bottom in sequence, wherein the conveying unit originally positioned at the first section in the front is positioned at the top, the conveying unit originally positioned at the second section in the front is positioned at the second top, and so on, the conveying unit originally positioned at the second section from the last to the last is positioned at the second bottom, the conveying unit originally positioned at the section at the last is positioned at the bottom, and the whole telescopic conveying line device is in a folded state.
A method for stretching a telescopic conveying line device adopts the telescopic conveying line device, the number of the sections of a conveying unit of the telescopic conveying line device is N (N is a natural number more than 3); before the telescopic conveying line device starts to extend, the whole telescopic conveying line device is in a folded state, all sections of conveying units are stacked on the lifting support from top to bottom, and all the sections of conveying units sequentially comprise a first section of conveying unit, a second section of conveying unit, … …, an N-1 section of conveying unit and an Nth section of conveying unit from top to bottom; the supporting legs of each section of the conveying unit are in a horizontal state, and the rear end of the Nth section of the conveying unit is positioned on the rear end part of the longitudinal guide rail of the lifting support; the tractor is connected with the front end of the first section of transmission unit;
the whole stretching method comprises the following steps:
(1) the first section of conveying unit is pushed forwards away from the lifting support, and the method specifically comprises the following steps: the tractor moves forwards to pull the first section of conveying unit to move forwards, after the supporting leg of the first section of conveying unit leaves the space above the second section of conveying unit, the servo cylinder of the first section of conveying unit drives the corresponding supporting leg to swing so that the supporting leg becomes upright, then, when the front fastener of the first section of conveying unit comes to be right above the rear fastener of the second section of conveying unit, the tractor stops moving, then the vertical driving mechanism drives the lifting support to ascend, the second section of conveying unit to the Nth section of conveying unit ascend, the front fastener of the first section of conveying unit is fastened with the rear fastener of the second section of conveying unit, and the operation process of pushing the first section of conveying unit forwards away from the lifting support is completed;
(2) sequentially pushing each section of conveying unit forwards away from the lifting support according to the sequence from the second section of conveying unit to the (N-1) th section of conveying unit;
the specific steps of pushing the Mth section of conveying unit forwards away from the lifting support are as follows (M is any natural number which is smaller than N and larger than 1): the tractor moves forwards and pulls the first section transmission unit to the Mth section transmission unit to move forwards, when the support leg of the M section of the transmission unit leaves the space above the M +1 section of the transmission unit, the servo cylinder of the M section of the transmission unit drives the corresponding support leg to swing so that the support leg becomes an upright state, then, when the front fastener of the M-th section of the transmission unit comes to be right above the rear fastener of the M + 1-th section of the transmission unit, the tractor stops moving, then the vertical driving mechanism drives the lifting support to ascend, the (M + 1) th section of conveying unit and the conveying unit below the M +1 th section of conveying unit ascend, a front buckling piece of the M +1 th section of conveying unit is buckled with a rear buckling piece of the M +1 th section of conveying unit, the operation process of pushing the M +1 th section of conveying unit forwards away from the lifting support is completed, and then the M +1 th section of conveying unit is pushed forwards away from the lifting support;
(3) the Nth section of conveying unit is pushed forwards away from the lifting support, and the method specifically comprises the following steps: the tractor moves forwards, pulls the first section transmission unit to the Nth section transmission unit to move forwards, when the support leg of the Nth section transmission unit leaves the space above the lifting support, the servo cylinder of the Nth section transmission unit drives the corresponding support leg to swing so that the support leg becomes an upright state, and then when the rear end of the Nth section transmission unit comes to the upper surface of the front end part of the longitudinal guide rail of the lifting support, the tractor stops moving forwards.
After step (3) is completed, the side frame strips of all the sections of conveying units are located at the same height position, the conveying rollers of all the sections of conveying units are located at the same height position, and all the sections of conveying units are sequentially connected from front to back, wherein the conveying unit originally located at the uppermost section is located at the forefront, the conveying unit originally located at the next upper section is located at the next front, and by analogy, the conveying unit originally located at the next lower section is located at the next rear, the conveying unit originally located at the lowest section is located at the rearmost, and the whole telescopic conveying line device is in a longitudinally extended state.
The invention has the following advantages and effects:
the telescopic conveying line device can realize longitudinal extension and longitudinal contraction and folding under the driving of the tractor, and in addition, the vertical positions of the conveying rollers of all the sections of conveying units are the same in the extension state, namely the conveying rollers are positioned at the same height position, so that steps do not exist among all the sections of conveying units, and goods stably run when moving on the conveying line.
Secondly, the invention has simple and ingenious structure and simple and convenient extension process and contraction process.
Drawings
Fig. 1 is a schematic structural view of a conventional telescopic conveyor line device in a collapsed state.
Fig. 2 is a schematic structural view of a conventional telescopic conveyor line device in an extended state.
Fig. 3 is a schematic perspective view of an extended state according to an embodiment of the present invention.
Fig. 4 is a side view of the structure shown in fig. 3.
Fig. 5 is an exploded view of the structure shown in fig. 4.
Fig. 6 is a perspective view of the second section transfer unit.
Fig. 7 is a side view of the structure of fig. 6.
Fig. 8 is a schematic perspective view of a contracted state according to an embodiment of the present invention.
Fig. 9 is a side view of the structure shown in fig. 8.
Fig. 10 is a schematic view of the first section of the transfer unit in an intermediate state of being pushed forward away from the lifting bracket, and also corresponds to a schematic view of the first section of the transfer unit in an intermediate state of being pushed backward above the lifting bracket.
Figure 11 is a perspective view of the swing arm landing gear of figure 10.
Fig. 12 is a schematic view showing an intermediate state after the support leg of the first section transfer unit in fig. 10 becomes an upright state.
Fig. 13 is a perspective view schematically illustrating the state shown in fig. 12.
Figure 14 is a perspective view of the swing arm landing gear of figure 13.
Fig. 15 is a schematic view showing a state in which the front fastener of the first-stage transfer unit comes directly above the rear fastener of the second-stage transfer unit.
Fig. 16 is an enlarged view of a portion of fig. 15.
FIG. 17 is an exploded view of the front and rear fasteners of FIG. 16 in mating relationship.
FIG. 18 is a schematic view of the first section transfer unit of FIG. 15 after the front fastener has been engaged with the rear fastener to the second section transfer unit.
Fig. 19 is a partially enlarged schematic view of B in fig. 18.
Fig. 20 is a schematic view of an intermediate state when the support legs of the first section transfer unit and the second section transfer unit are in an upright state.
Fig. 21 is a schematic view of an intermediate state when the support legs of the first section transfer unit, the second section transfer unit, and the third section transfer unit are in an upright state.
Detailed Description
Example one
Fig. 3, 4 and 5 show a telescopic conveyor line device, which comprises four sections of conveying units; when the telescopic conveying line device is in an extension state, all the sections of conveying units are sequentially connected in the longitudinal direction, and a first section of conveying unit 1, a second section of conveying unit 2, a third section of conveying unit 3 and a fourth section of conveying unit 4 are sequentially arranged from front to back, and a tractor (not shown in the figure) is further arranged and connected with the front end of the first section of conveying unit 1; as shown in fig. 3, 4, 5, 6, 7, 14, 16, 17, 19 and 20, each conveying unit includes two left and right longitudinally extending side frame strips 11, a plurality of transversely extending conveying rollers 12 are mounted between the two left and right side frame strips 11, and the conveying rollers 12 are sequentially arranged in the longitudinal direction; in every two adjacent sections of transmission units, the rear end of the side frame strip 11 of the front section of transmission unit is provided with a front fastener 17, the front end of the side frame strip 11 of the rear section of transmission unit is provided with a rear fastener 18, and the rear fastener 18 of the rear section of transmission unit and the front fastener 17 of the front section of transmission unit form a fastening fit relation; in each two adjacent sections of transmission units, the front fastener 17 of the front section of transmission unit is provided with a first hook opening 170 and a first hook tip 171, the first hook tip 171 is positioned behind the first hook opening 170, and the first hook opening 170 faces downwards; the rear fastener 18 of the rear section of the conveying unit is provided with a second hook opening 180 and a second hook tip 181, the second hook tip 181 is positioned in front of the second hook opening 180, and the second hook opening 180 faces upwards; when the front fastener 17 of the previous transfer unit and the rear fastener 18 of the next transfer unit are engaged, the first hooking tip 171 is engaged into the second hooking opening 180, and the second hooking tip 181 is engaged into the first hooking opening 170. The relative movement direction when the front buckling piece 17 of the front section of the transmission unit and the rear buckling piece 18 of the rear section of the transmission unit are buckled or loosened is vertical; in the process of gradually buckling the two, the moving direction of the rear buckling piece 18 relative to the front buckling piece 17 is upward; in the process of gradually releasing the two, the movement direction of the rear fastener 18 relative to the front fastener 17 is downward; when the rear buckling piece 18 of the next section of conveying unit is buckled with the front buckling piece 17 of the previous section of conveying unit, the vertical positions of the side frame strips 11 of the front and rear sections of conveying units are the same, the vertical positions of the conveying rollers 12 of the front and rear sections of conveying units are the same, and the rear end of the side frame strip 11 of the previous section of conveying unit is next to the front end of the side frame strip 11 of the next section of conveying unit.
As shown in fig. 5, 10, 11 and 14, each section of the conveying unit is further provided with a swing arm type undercarriage, the swing arm type undercarriage comprises a support leg 13 and a servo cylinder 15, the support leg 13 is hinged to the side frame strip 11, the servo cylinder 15 drives the support leg 13 to swing back and forth around a hinged shaft to realize the conversion between the upright state and the horizontal state of the support leg 13, and a roller 14 is arranged at the swing end of the support leg 13; the supporting legs 13 of the conveying units have the same height; the lifting device is also provided with a lifting support 5 and a vertical driving mechanism (a vertical driving cylinder 51) for driving the lifting support 5 to vertically lift, wherein a longitudinal guide rail is arranged on the lifting support 5, and the rear end of the fourth section of conveying unit 4 can be longitudinally and slidably arranged on the longitudinal guide rail; when the telescopic conveyor line device is in the extended state, the rear end of the fourth joint transfer unit 4 is positioned above the front end of the longitudinal rail.
Example two
A telescopic conveying line device contraction method uses the telescopic conveying line device described in the first embodiment, the number of the transmission units of the telescopic conveying line device is 4; before the telescopic conveying line device starts to contract, the telescopic conveying line device is in a longitudinal extending state, all sections of conveying units are sequentially connected from front to back, and a first section of conveying unit 1, a second section of conveying unit 2, a third section of conveying unit 3 and a fourth section of conveying unit 4 are sequentially arranged from front to back; the tractor is directly connected with the front end of the first section of the transmission unit 1; in every two adjacent sections of conveying units, a front fastener 17 of the front section of conveying unit and a rear fastener 18 of the rear section of conveying unit are fastened together; the side frame strips 11 of each section of conveying unit are positioned at the same height position, and the conveying rollers 12 of each section of conveying unit are positioned at the same height position; the supporting legs 13 of each section of the conveying unit are in an upright state, and the rollers 14 of each supporting leg touch the ground; the rear end of the fourth section of conveying unit 4 is supported on the lifting support 5, the rear end of the fourth section of conveying unit 4 is positioned on the front end part of the longitudinal guide rail of the lifting support 5, and the gravity center of the fourth section of conveying unit 4 is positioned in front of the lifting support 5; as shown in fig. 3 and 4
The steps of the whole shrinking method are as follows in sequence:
(1) the fourth section of conveying unit 4 is pushed back to the position above the lifting support 5, and the method comprises the following specific steps: the tractor moves backwards to push the first section transmission unit 1 to the fourth section transmission unit 4 (namely all the four section transmission units) to move backwards, after the gravity center of the fourth section transmission unit 4 moves above the lifting support 5, the servo cylinder 15 of the fourth section transmission unit 4 drives the corresponding supporting leg 13 to swing so that the supporting leg 13 becomes horizontal, then, when the whole fourth section transmission unit 4 completely moves above the lifting support 5, the rear end of the fourth section transmission unit 4 comes above the rear end part of the longitudinal guide rail of the lifting support 5, the tractor stops moving, then the vertical driving cylinder 51 drives the lifting support 5 to descend, the fourth section transmission unit 4 descends along with the tractor, the rear buckling piece 18 of the fourth section transmission unit 4 moves downwards relative to the front buckling piece 17 of the third section transmission unit 3, so that the rear buckling piece 18 of the fourth section transmission unit 4 is buckled with the front buckling piece 17 of the third section transmission unit 3, the fourth section of conveying unit 4 is pushed back to the upper part of the lifting bracket;
(2) the third section conveying unit 3 is pushed back to the position above the lifting support 5, and the method comprises the following specific steps: the tractor moves backwards, pushing the first section transmission unit 1 to the third section transmission unit 3 (namely the front three section transmission unit) to move backwards, the state after moving for a certain distance is shown in figure 21, when the gravity center of the third section transmission unit 3 moves above the fourth section transmission unit 4, the servo cylinder 15 of the third section transmission unit 3 drives the corresponding supporting leg 13 to swing, so that the supporting leg becomes horizontal, then, when the rear fastening piece 18 of the third section transmission unit 3 comes right above the rear fastening piece 18 of the fourth section transmission unit 4, the tractor stops moving, then the vertical driving cylinder 51 drives the lifting bracket 5 to descend, the third section transmission unit 3 and the fourth section transmission unit 4 descend along with the movement, the rear fastening piece 18 of the third section transmission unit 3 moves downwards relative to the front fastening piece 17 of the second section transmission unit 2, the rear fastening piece 18 of the third section transmission unit 3 and the front fastening piece 17 of the second section transmission unit 2, the operation process of pushing the third section of the conveying unit 3 back to the position above the lifting bracket 5 is completed;
(3) the second section of conveying unit 2 is pushed back to the position above the lifting support 5, and the method comprises the following specific steps: the tractor moves backwards, pushing the first section transmission unit 1 to the second section transmission unit 2 (namely the two front section transmission units) to move backwards, the state after moving for a certain distance is shown in figure 20, when the gravity center of the second section transmission unit 2 moves above the third section transmission unit 3, the servo cylinder 15 of the second section transmission unit 2 drives the corresponding support leg 13 to swing, so that the support leg 13 becomes horizontal, then, when the rear fastening piece 18 of the second section transmission unit 2 comes right above the rear fastening piece 18 of the third section transmission unit, as shown in figures 18 and 19, the tractor stops moving, then the vertical driving cylinder 51 drives the lifting support 5 to descend, the second section transmission unit 2, the third section transmission unit 3 and the fourth section transmission unit 4 descend along with the descending, the rear fastening piece 18 of the second section transmission unit 2 moves downwards relative to the front fastening piece 17 of the first section transmission unit 1, the rear fastener 18 of the second section conveying unit 2 is disengaged from the front fastener 17 of the first section conveying unit 1, as shown in fig. 15 and 16, the operation process of pushing the second section conveying unit 2 back to the upper part of the lifting bracket 5 is completed;
(4) the first section of conveying unit 1 is pushed back to the position above the lifting support 5, and the method comprises the following specific steps: the tractor moves backwards, pushes the first section of the transmission unit 1 to move backwards, the state after moving for a certain distance is shown in fig. 12, 13 and 14, when the gravity center of the first section of the transmission unit 1 moves to the upper part of the second section of the transmission unit 2, the servo cylinder 15 of the first section of the transmission unit 1 drives the corresponding supporting leg 13 to swing, so that the supporting leg 13 becomes horizontal, as shown in fig. 10 and 11, and then, when the front fastener 17 of the first section of the transmission unit 1 comes to be right above the front fastener 17 of the second section of the transmission unit 2, the tractor stops moving backwards, and the operation process of pushing the first section of the transmission unit back to the upper part of the lifting bracket is completed;
after the step (4) is completed, all four sections of conveying units are in a folded state of being stacked up and down, as shown in fig. 8 and 9, the conveying units of the sections are arranged in sequence from top to bottom, wherein the conveying unit originally located at the first section in the front is located at the top, the conveying unit originally located at the second section in the front is located at the second top, the conveying unit originally located at the second section from last to last behind is located at the second bottom, the conveying unit originally located at the last section is located at the bottom, and the whole telescopic conveyor line device is in a folded state.
EXAMPLE III
A method for stretching a telescopic conveying line device uses the telescopic conveying line device described in the first embodiment, wherein the number of the sections of a transmission unit of the telescopic conveying line device is 4; before the telescopic conveying line device starts to extend, the whole telescopic conveying line device is in a folded state, all sections of conveying units are stacked on the lifting support from top to bottom, and all the sections of conveying units sequentially comprise a first section of conveying unit 1, a second section of conveying unit 2, a third section of conveying unit 3 and a fourth section of conveying unit 4 from top to bottom; the supporting legs 13 of the conveying units are in a horizontal state, as shown in fig. 8 and 9; the tractor is directly connected with the front end of the first section of the transmission unit 1; the rear end of the fourth section of conveying unit 4 is positioned on the rear end part of the longitudinal guide rail of the lifting bracket 5;
the steps of the whole stretching method are as follows in sequence:
(1) the first section of conveying unit 1 is pushed forwards away from the lifting support 5, and the method comprises the following specific steps: the tractor moves forward, pulls the first section transmission unit 1 to move forward, the state after moving a certain distance is shown in fig. 10 and fig. 11, after the support leg 13 of the first section transmission unit 1 leaves the space above the second section transmission unit 2, the servo cylinder 15 of the first section transmission unit 1 drives the corresponding support leg 13 to swing, so that the support leg becomes the upright state, as shown in fig. 12, fig. 13 and fig. 14, then, when the front fastener 17 of the first section transmission unit 1 comes right above the rear fastener 18 of the second section transmission unit 2, as shown in fig. 15 and fig. 16, the tractor stops moving, then the vertical driving cylinder 51 drives the lifting bracket 5 to ascend, the second section transmission unit 2, the third section transmission unit 3 and the fourth section transmission unit 4 ascend, the front fastener 17 of the first section transmission unit 1 is fastened with the rear fastener 18 of the second section transmission unit 2, after buckling, as shown in fig. 18 and 19, the operation process of pushing the first section of the conveying unit 1 forward away from the lifting bracket 5 is completed;
(2) the second section of conveying unit 2 is pushed forwards away from the lifting support 5, and the method comprises the following specific steps: the tractor moves forwards, pulls the first section transmission unit 1 and the second section transmission unit 2 to move forwards, after the support legs 13 of the second section transfer unit 2 leave the space above the third section transfer unit 3, the servo cylinder 15 of the second joint transferring unit 2 drives the corresponding supporting leg 13 to swing so that the supporting leg 13 becomes an upright state, as shown in fig. 20, then, when the front fastener 17 of the second link transfer unit 2 comes to be directly above the rear fastener 18 of the third link transfer unit 3, the tractor stops moving, then the vertical driving cylinder 51 drives the lifting support 5 to ascend, the third section of transmission unit 3 and the fourth section of transmission unit 4 ascend along with the ascending, the front fastening piece 17 of the second section of transmission unit 2 is fastened with the rear fastening piece 18 of the third section of transmission unit 3, and the operation process of pushing the second section of transmission unit 2 away from the lifting support 5 forwards is completed;
(3) the third section conveying unit 3 is pushed forwards away from the lifting support, and the method specifically comprises the following steps: the tractor moves forward, pulls the first section transmission unit 1, the second section transmission unit 2 and the third section transmission unit 3 to move forward, after the support legs 13 of the third section transfer unit 3 leave the space above the fourth section transfer unit 4, the servo cylinder 15 of the third section transfer unit 3 drives the corresponding support leg 13 to swing so that the support leg becomes an upright state, as shown in fig. 21, then, when the front fastener 17 of the third section transfer unit 3 comes directly above the rear fastener 18 of the fourth section transfer unit 4, the tractor stops moving, as shown in fig. 15 and 16, the vertical driving cylinder 51 drives the lifting support 5 to ascend, the fourth section of conveying unit 4 ascends along with the ascending, the front fastener 17 of the third section of conveying unit 3 is fastened with the rear fastener 18 of the fourth section of conveying unit 4, and the operation process of pushing the third section of conveying unit 3 forward away from the lifting support 5 is completed;
(4) the fourth section of conveying unit 4 is pushed forwards away from the lifting support 5, and the method comprises the following specific steps: when the supporting legs 13 of the fourth section conveying unit 4 leave the space above the lifting support 5, the servo air cylinder 15 of the fourth section conveying unit 4 drives the corresponding supporting legs 13 to swing so that the supporting legs are in an upright state, and then when the rear end of the fourth section conveying unit 4 comes to the upper surface of the front end part of the longitudinal guide rail of the lifting support 5, the tractor stops moving forwards to finish the process of pushing the fourth section conveying unit forwards away from the lifting support;
after the step (4) is completed, the frame bars of all the sections of the conveying units are located at the same height position, as shown in fig. 3 and 4, the conveying rollers of all the sections of the conveying units are located at the same height position, and all the sections of the conveying units are sequentially connected in front and back, wherein the conveying unit originally located at the uppermost section is located at the forefront, the conveying unit originally located at the next upper section is located at the next front, the conveying unit originally located at the next lower section is located at the next rear, the conveying unit originally located at the lowest section is located at the rearmost, and the whole telescopic conveying line device is changed into a longitudinally extending state.

Claims (5)

1. A telescopic conveying line device comprises a plurality of sections of conveying units; each section of conveying unit comprises a left side frame strip and a right side frame strip which extend longitudinally, a plurality of conveying rollers which extend transversely are arranged between the left side frame strip and the right side frame strip, and the conveying rollers are sequentially arranged along the longitudinal direction; when the telescopic conveying line device is in an extension state, all the sections of conveying units are sequentially connected along the longitudinal direction; the transmission unit is characterized in that in every two adjacent sections of transmission units, the rear end of the side frame strip of the front section of transmission unit is provided with a front buckling piece, the front end of the side frame strip of the rear section of transmission unit is provided with a rear buckling piece, the rear buckling piece of the rear section of transmission unit and the front buckling piece of the front section of transmission unit form a buckling fit relation, and the relative movement direction of the two during buckling or tripping is vertical; in the process of gradually buckling the front buckling piece and the rear buckling piece, the movement direction of the rear buckling piece relative to the front buckling piece is upward; in the process of gradually releasing the front fastening piece and the rear fastening piece, the movement direction of the rear fastening piece relative to the front fastening piece is downward; when the rear buckling piece and the front buckling piece are buckled, the vertical positions of the side frame strips of the front and rear conveying units are the same, the vertical positions of the conveying rollers of the front and rear conveying units are the same, and the rear end of the side frame strip of the front conveying unit is next to the front end of the side frame strip of the rear conveying unit;
each section of the conveying unit is also provided with a swing arm type undercarriage, each swing arm type undercarriage comprises a supporting leg and a servo cylinder, the supporting legs are hinged with the side frame strips, the servo cylinders drive the corresponding supporting legs to swing back and forth so as to realize the conversion of the supporting legs between an upright state and a horizontal state, and the swing ends of the supporting legs are provided with rollers; the supporting legs of the conveying units have the same height;
the rear end of the last section of conveying unit can be longitudinally and slidably arranged on the longitudinal guide rail; when the telescopic conveyor line device is in an extended state, the rear end of the last section of the conveying unit is positioned above the front end part of the longitudinal guide rail.
2. The telescopic conveyor line device of claim 1, wherein: and the tractor is connected with the foremost section of the transmission unit.
3. The telescopic conveyor line device according to claim 1 or 2, characterized in that: in each two adjacent sections of transmission units, the front buckling piece of the front section of transmission unit is provided with a first hook opening and a first hook tip, the first hook tip is positioned behind the first hook opening, and the first hook opening faces downwards; the rear fastener of the rear section of the conveying unit is provided with a second hook opening and a second hook tip, the second hook tip is positioned in front of the second hook opening, and the second hook opening faces upwards; when the front fastener and the rear fastener are fastened, the first hook point is fastened into the second hook opening, and the second hook point is fastened into the first hook opening.
4. A method for shrinking a telescopic conveying line device, which adopts the telescopic conveying line device as claimed in claim 2, wherein the number of the sections of the conveying unit of the telescopic conveying line device is N, and N is a natural number more than 3; before the telescopic conveying line device starts to contract, the telescopic conveying line device is in a longitudinal extending state, all sections of conveying units are sequentially connected from front to back, and a first section of conveying unit, a second section of conveying unit, … …, an N-1 section of conveying unit and an Nth section of conveying unit are sequentially arranged from front to back; in every two adjacent sections of the conveying units, a front buckling piece of the front section of the conveying unit and a rear buckling piece of the rear section of the conveying unit are buckled together; the side frame strips of each section of conveying unit are positioned at the same height position, and the conveying rollers of each section of conveying unit are positioned at the same height position; the supporting legs of each section of the conveying unit are in an upright state, and the rollers of each supporting leg touch the ground; the rear end of the Nth section of conveying unit is supported on the lifting support, the rear end of the Nth section of conveying unit is positioned on the front end part of the longitudinal guide rail of the lifting support, and the gravity center of the Nth section of conveying unit is positioned in front of the lifting support; the tractor is connected with the front end of the first section of transmission unit;
the steps of the whole shrinking process are as follows in sequence:
(1) the Nth section of conveying unit is pushed back to the upper part of the lifting support, and the method comprises the following specific steps: the tractor moves backwards and pushes the first section of the transmission unit to the Nth section of the transmission unit to move backwards, after the gravity center of the Nth section of the transmission unit moves above the lifting bracket, the servo cylinder of the Nth section of the transmission unit drives the corresponding supporting leg to swing so that the supporting leg becomes a horizontal state, then, when the whole Nth section of conveying unit completely moves above the lifting support, the rear end of the Nth section of conveying unit comes to the upper surface of the rear end part of the longitudinal guide rail of the lifting support, the tractor stops moving, then the vertical driving mechanism drives the lifting support to descend, the Nth section of conveying unit descends along with the N section of conveying unit, a rear buckling piece of the Nth section of conveying unit moves downwards relative to a front buckling piece of the N-1 section of conveying unit, and then the rear buckling piece of the Nth section of conveying unit and the front buckling piece of the N-1 section of conveying unit are buckled, so that the operation process of pushing the Nth section of conveying unit backwards to the upper part of the lifting support is completed;
(2) sequentially pushing each section of conveying unit back to the upper part of the lifting bracket according to the sequence from the N-1 section of conveying unit to the second section of conveying unit;
the specific substeps of pushing the Mth section of conveying unit back to the upper part of the lifting bracket are as follows, wherein M is any natural number which is less than N and more than 1: the tractor moves backwards to push the first section transmission unit to the Mth section transmission unit to move backwards, when the gravity center of the Mth section transmission unit moves above the M +1 th section transmission unit, the servo cylinder of the M section transmission unit drives the corresponding supporting leg to swing so that the supporting leg becomes a horizontal state, then, when the rear fastener of the M-th section of the transmission unit comes to be right above the rear fastener of the M + 1-th section of the transmission unit, the tractor suspends and moves, then the vertical driving mechanism drives the lifting support to descend, the Mth section of conveying unit and all sections of conveying units below the Mth section of conveying unit descend along with the M section of conveying unit, a rear buckling piece of the Mth section of conveying unit moves downwards relative to a front buckling piece of the M-1 section of conveying unit, the rear buckling piece of the Mth section of conveying unit is buckled with the front buckling piece of the M-1 section of conveying unit, and the operation process of pushing the Mth section of conveying unit backwards to the upper side of the lifting support is completed;
(3) the first section of conveying unit is pushed back to the upper part of the lifting support, and the method comprises the following specific steps: the tractor moves backwards to push the first section of conveying unit to move backwards, when the gravity center of the first section of conveying unit moves to the position above the second section of conveying unit, the servo cylinder of the first section of conveying unit drives the corresponding supporting leg to swing so that the supporting leg becomes a horizontal state, and then when the front fastener of the first section of conveying unit comes to the position right above the front fastener of the second section of conveying unit, the tractor stops moving backwards.
5. A stretching method of a telescopic conveying line device, which adopts the telescopic conveying line device as claimed in claim 2, wherein the number of the sections of the conveying unit of the telescopic conveying line device is N, and N is a natural number more than 3; before the telescopic conveying line device starts to extend, the whole telescopic conveying line device is in a folded state, all sections of conveying units are stacked on the lifting support from top to bottom, and all the sections of conveying units sequentially comprise a first section of conveying unit, a second section of conveying unit, … …, an N-1 section of conveying unit and an Nth section of conveying unit from top to bottom; the supporting legs of each section of the conveying unit are in a horizontal state, and the rear end of the Nth section of the conveying unit is positioned on the rear end part of the longitudinal guide rail of the lifting support; the tractor is connected with the front end of the first section of transmission unit;
the whole stretching method comprises the following steps:
(1) the first section of conveying unit is pushed forwards away from the lifting support, and the method specifically comprises the following steps: the tractor moves forwards to pull the first section of conveying unit to move forwards, after the supporting leg of the first section of conveying unit leaves the space above the second section of conveying unit, the servo cylinder of the first section of conveying unit drives the corresponding supporting leg to swing so that the supporting leg becomes upright, then, when the front fastener of the first section of conveying unit comes to be right above the rear fastener of the second section of conveying unit, the tractor stops moving, then the vertical driving mechanism drives the lifting support to ascend, the second section of conveying unit to the Nth section of conveying unit ascend, the front fastener of the first section of conveying unit is fastened with the rear fastener of the second section of conveying unit, and the operation process of pushing the first section of conveying unit forwards away from the lifting support is completed;
(2) sequentially pushing each section of conveying unit forwards away from the lifting support according to the sequence from the second section of conveying unit to the (N-1) th section of conveying unit;
the specific steps of pushing the Mth section of conveying unit forwards away from the lifting support are as follows, wherein M is any natural number which is smaller than N and larger than 1: the tractor moves forwards to pull the first section of the conveying unit to the Mth section of the conveying unit to move forwards, after the supporting leg of the Mth section of the conveying unit leaves a space above the M +1 th section of the conveying unit, a servo cylinder of the Mth section of the conveying unit drives the corresponding supporting leg to swing so that the supporting leg becomes an upright state, then, when a front fastener of the Mth section of the conveying unit comes right above a rear fastener of the M +1 th section of the conveying unit, the tractor stops moving, then a vertical driving mechanism drives a lifting support to ascend, the M +1 th section of the conveying unit and a conveying unit below the M +1 th section of the conveying unit ascend along with the lifting support, the front fastener of the Mth section of the conveying unit is fastened with the rear fastener of the M +1 th section of the conveying unit, and the M section of the conveying unit is pushed forwards away from;
(3) the Nth section of conveying unit is pushed forwards away from the lifting support, and the method specifically comprises the following steps: the tractor moves forwards, pulls the first section transmission unit to the Nth section transmission unit to move forwards, when the support leg of the Nth section transmission unit leaves the space above the lifting support, the servo cylinder of the Nth section transmission unit drives the corresponding support leg to swing so that the support leg becomes an upright state, and then when the rear end of the Nth section transmission unit comes to the upper surface of the front end part of the longitudinal guide rail of the lifting support, the tractor stops moving forwards.
CN201910063757.8A 2019-01-23 2019-01-23 Telescopic conveying line device and stretching method and contraction method thereof Expired - Fee Related CN109625773B (en)

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