CN216472026U

CN216472026U - Reciprocating conveyer

Info

Publication number: CN216472026U
Application number: CN202123062423.0U
Authority: CN
Inventors: 何春江; 陈红兵; 熊晗; 陈永坤
Original assignee: CHANGZHOU HIDEA MACHINERY CO LTD
Current assignee: CHANGZHOU HIDEA MACHINERY CO LTD
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-10
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a reciprocating conveyor, which comprises a base, a lifting platform, lifting mechanisms and a lifting driving mechanism, wherein at least two lifting mechanisms are arranged between the base and the lifting platform; the lifting mechanism drives the lifting platform to ascend or descend; the lifting driving mechanism drives the lifting mechanism to lift upwards so as to lift the lifting platform, and the lifting mechanism supports the lifting platform which is lifted in place; or the lifting mechanism is driven to downwards fall to enable the lifting platform to descend, and the lifting platform which descends in place is supported by the lifting mechanism; the lifting platform is provided with a transfer device for forming horizontal transfer to a transferred object, the lifting driving mechanism adopts a crank rocker driving mechanism, the crank rocker driving mechanism is provided with two dead point positions, when the lifting platform is positioned at a high position and a low position, the two dead point positions are utilized, the lifting platform is stably supported, and the support stability of the high position and the low position of the lifting platform is further improved by combining a parallelogram mechanism formed between adjacent lifting mechanisms.

Description

Reciprocating conveyer

Technical Field

The utility model relates to a conveyor field, concretely relates to reciprocating conveyor.

Background

The reciprocating rod conveyor or a reciprocating rod conveyor unit or a longitudinal transfer machine is applied to a product assembly line, workpieces on stations on the same line are simultaneously transferred from an upper station to a lower station of large transfer equipment, the large transfer equipment is stopped for a period of time, all stations complete corresponding operations, and the large transfer equipment is circulated repeatedly, wherein a single reciprocating rod conveyor can be 50 meters long, and multiple on-line modes can be hundreds of meters long, so that the requirements of assembly of various products are met. The existing reciprocating conveyor is not stable enough in the using process and influences the use.

Disclosure of Invention

To the technical problem, the utility model aims at providing a reciprocating conveyor rational in infrastructure, the steady use.

Realize the technical scheme of the utility model as follows

The reciprocating conveyor comprises a base, a lifting platform, lifting mechanisms and a lifting driving mechanism, wherein at least two lifting mechanisms are arranged between the base and the lifting platform;

the lifting mechanism drives the lifting platform to ascend or descend;

the lifting driving mechanism drives the lifting mechanism to lift upwards so as to lift the lifting platform, and the lifting mechanism supports the lifting platform which is lifted in place; or the lifting mechanism is driven to downwards fall to enable the lifting platform to descend, and the lifting platform which descends in place is supported by the lifting mechanism;

a transfer device for horizontally transferring the transferred object is arranged on the lifting platform;

the lifting driving mechanism is a crank rocker driving mechanism.

One embodiment in this application: the adjacent lifting mechanisms are synchronously connected through a connecting rod mechanism, and a parallelogram mechanism is formed between the adjacent lifting mechanisms through the connecting rod mechanism;

the lifting driving mechanism is in transmission connection with any one of the lifting mechanisms.

One embodiment in this application: the lifting mechanism comprises a lifting rocker arm, a lifting seat and a lifting base, and the lifting seat is fixedly connected with the lifting platform;

the middle part of the lifting rocker arm is bent, the middle part of the lifting rocker arm is rotatably arranged on the lifting base, and two ends of the lifting rocker arm swing with the middle part of the lifting rocker arm;

one end of each lifting rocker arm is movably connected with the lifting seat, and the other end of each lifting rocker arm in the adjacent lifting mechanism is connected through the connecting rod mechanism.

One embodiment in this application: the lifting driving mechanism comprises a lifting motor, a lifting speed reducer, a crank and a pull arm;

the output end of the lifting motor is connected with the power input end of the lifting speed reducer; the crank is assembled at the power output end of the lifting speed reducer and is driven by the power output end of the lifting speed reducer to swing back and forth;

one end of the pull arm is movably connected with the crank, and the other end of the pull arm is in transmission connection with any lifting mechanism or connecting rod mechanism.

The connecting rod mechanism comprises a connecting rod and a connector, and the connector is movably connected with a pull arm in the lifting mechanism; one end of the connecting rod is connected with the connector, and the other end of the connecting rod is connected with the connector in the adjacent connecting rod mechanism.

One embodiment in this application: the shifting device comprises a moving platform and a shifting driving mechanism, wherein the moving platform bears the shifted object placed on the moving platform;

the mobile station moves back and forth on the lifting platform;

the transfer driving mechanism provides driving force for the moving platform to move back and forth on the lifting platform;

a roller group is arranged on the mobile station, the roller group comprises a plurality of rollers which are arranged at intervals, the mobile station is supported on the lifting table through the plurality of rollers, and the rolling directions of all the rollers in the roller group are the same;

the lifting platform is fixedly provided with a rolling guide component corresponding to the roller group, the rolling guide component extends along the reciprocating moving direction of the mobile platform, and the rolling guide component is provided with a guide plane which forms rolling fit with the rolling surface of the roller in the roller group.

One embodiment in this application: the load transferring driving mechanism is assembled on an installation platform, the installation platform is fixedly arranged with the lifting platform, a guide frame is arranged below the installation platform, and a guide mechanism for lifting the installation platform to form lifting guide is arranged between the installation platform and the guide frame.

One embodiment in this application: the transfer driving mechanism comprises a power unit, a main driving part and a secondary driving part, the power unit is assembled on the mounting platform,

the main driving part is assembled at the power output end of the power unit, and the power of the power unit is transmitted to the main driving part to enable the main driving part to generate driving force; the auxiliary driving part is fixedly arranged on the movable platform and is in transmission fit with the main driving part so as to enable the movable platform to move back and forth on the lifting platform.

One embodiment in this application: the lifting platform is characterized by also comprising a counterweight structure which is matched with the lifting rocker arm in the lifting process of the lifting platform so as to reduce the lifting or/and falling swing power of the lifting rocker arm.

One embodiment in this application: the counterweight structure comprises a counterweight and a counterweight connecting piece, the middle part of the counterweight connecting piece is rotatably arranged on the lifting base, the counterweight is arranged at one end of the counterweight connecting piece, the other end of the counterweight connecting piece is fixedly connected with a lifting rocker arm close to one side of the lifting base, and the middle rotating part of the lifting rocker arm and the middle rotating part of the counterweight connecting piece are arranged by a coaxial line.

By adopting the technical scheme, the lifting driving mechanism adopts the crank rocker driving mechanism, and the crank rocker driving mechanism is provided with two dead point positions, one dead point position is at the lifting position and the other dead point position is at the lower lowering position, so that the lifting platform is stably supported when being at the high position and the low position, and the support stability of the high position and the low position of the lifting platform is further improved by combining the parallelogram mechanism formed between the adjacent lifting mechanisms.

In addition, through the optimized design of the transfer device, the rolling wheel set is arranged below the mobile platform, the distributed rollers are used for sharing and bearing the mobile platform and the loaded object on the mobile platform, the overall deformation of the mobile platform after the load is reduced, and the rollers are in guiding fit with the guiding plane of the rolling guiding component, so that the transfer stability can be improved and the fluctuation risk of the mobile platform in the up and down direction can be reduced under the conditions of long distance, fast transfer and heavy load requirements of the mobile platform.

Moreover, the lifting driving mechanism adopts the motor to realize the swinging of the crank rocker, so that when a plurality of reciprocating conveyors are combined for use, the synchronous lifting and descending among the plurality of reciprocating conveyors are realized by controlling the synchronism of the motor in the lifting driving mechanism, the control is convenient, and the lifting synchronism is ensured.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a perspective view of another perspective of the present invention;

FIG. 3 is a schematic end view of the present invention;

FIG. 4 is a schematic structural view of the utility model in a lifted state;

FIG. 5 is a schematic structural view of the falling state of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 1;

FIG. 7 is an enlarged view of portion B of FIG. 2;

FIG. 8 is an enlarged view of the portion C of FIG. 5;

FIG. 9 is an enlarged view of the portion D of FIG. 5;

in the drawing, 100 is a base, 101 is a lifting table, 102 is a lifting mechanism, 103 is a lifting driving mechanism, 104 is a transfer device, 105 is a link mechanism, 106 is a lifting rocker, 107 is a lifting base, 108 is a lifting base, 109 is a rotating shaft, 110 is a lifting motor, 111 is a lifting reducer, 112 is a crank, 113 is a pull arm, 114 is a frame, 115 is a travel switch, 116 is a touch piece, 117 is a connecting rod, 118 is a connector, 119 is a moving table, 120 is a transfer driving mechanism, 121 is a roller, 122 is a rolling guide member, 123 is a guide plane, 124 is a moving side frame, 125 is a moving connecting frame, 126 is an installation space, 127 is a roller shaft, 128 is a flange, 129 is an annular groove, 130 is a bearing side frame, 131 is a bearing connecting frame, 132 is a driving motor, 133 is a driving gear, 134 is a rack, 136 is a restraining block, 137 is a bracket, 138 is an installation platform, 139 is a guide frame, 140 is a guide mechanism, 141 is a support, 142 is a guide roller, 143 is a guide rail, 144 is a counterweight, 145 is a counterweight connecting piece.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-9, the reciprocating conveyor includes a base 100, a lifting table 101, a lifting mechanism 102, and a lifting driving mechanism 103, wherein a plurality of lifting mechanisms 102 are disposed between the base 100 and the lifting table 101; the base 100 and the lift table 101 are arranged horizontally, and a plurality of lift mechanisms 102 are driven by a single lift driving mechanism 103.

The lifting mechanism 102 drives the lifting platform 101 to ascend or descend; the lifting table 101 is provided with a transfer device 104 for horizontally transferring the object to be transferred.

The lifting driving mechanism 103 drives the lifting mechanism 102 to act so as to enable the lifting platform 101 to realize two states of lifting or descending; namely, the lifting driving mechanism 103 drives the lifting mechanism 102 to lift upwards so as to lift the lifting platform 101, and the lifting mechanism 102 supports the lifting platform 101 which is lifted in place; or the lifting mechanism 102 is driven to descend downwards to enable the lifting platform 101 to descend, and the lifting mechanism 102 supports the lifting platform 101 which descends in place.

The adjacent lifting mechanisms 102 are synchronously connected through the link mechanism 105, the link mechanism 105 forms a parallelogram mechanism between the adjacent lifting mechanisms 102, and the parallelogram mechanism between the adjacent lifting mechanisms can better realize linkage between the adjacent lifting mechanisms, stably ensure that the lifting mechanisms realize lifting action, and also can effectively and stably support the lifting mechanisms when the lifting mechanisms are lifted up or lowered down.

The lifting driving mechanism adopts a crank rocker driving mechanism, the lifting driving mechanism 103 is in transmission connection with any one of the lifting mechanisms 102, the lifting driving mechanism 103 is arranged at one end of the reciprocating conveyor in the application, the lifting driving mechanism 103 is in transmission connection with the adjacent lifting mechanism 102, the lifting driving mechanism 103 can be arranged at the other end or the middle position of the reciprocating conveyor, and the arrangement position of the specific lifting driving mechanism 103 is arranged according to the use occasion and the requirement.

The plurality of lifting mechanisms 102 arranged between the base 100 and the lifting platform 101 at intervals respectively comprise lifting rocker arms 106, lifting seats 107 and lifting bases 108, and the lifting seats 107 are positioned below the lifting platform 101 and fixedly connected with the lifting platform 101; the middle part of the lifting rocker arm 106 is bent, the middle part of the lifting rocker arm is rotatably arranged on the lifting base 108 through a rotating shaft 109, and two ends of the lifting rocker arm 106 can swing through the rotating shaft 109; the lifting pedestal 108 is fixedly arranged above the base 100; the upper end of the lifting rocker 106 is movably connected with the lifting base 107 through a rotating shaft, and the connecting rod mechanism 105 connects the lower ends of the lifting rocker 106 in the adjacent lifting mechanisms. When a pushing force or a pulling force is applied to the lower end of the lifting rocker arm 106 in the horizontal direction, the lifting rocker arm 106 rotates around the rotating shaft 109, and the pushing force or the pulling force is transmitted through the upper end of the lifting rocker arm to drive the lifting platform 101 to descend or ascend.

The lifting driving mechanism 103 comprises a lifting motor 110, a lifting speed reducer 111, a crank 112 and a pull arm 113; the lifting speed reducer 111 adopts a double-output speed reducer, and the output end of the lifting motor 110 is connected with the power input end of the lifting speed reducer 111; the crank 112 is assembled at the power output end of the lifting speed reducer 103, the lifting motor 110 provides lifting driving force and transmits the lifting driving force to the crank through the lifting speed reducer, and the power output end of the lifting speed reducer drives the crank 112 to swing back and forth; the lifting driving mechanism 103 is installed on a frame 114, travel switches 115 are installed on the frame 114 at two sides of the swinging direction of the crank 112 to control the reciprocating swinging angle of the crank 112, and a touch piece 116 is installed on the crank 112 and is matched with the travel switches 115 to generate a travel signal which is sent to a controller of the reciprocating conveyor.

One end of the pull arm 113 is movably connected with the crank 112 through a shaft, the swing force generated by the crank 112 enables the pull arm 113 to generate pulling force or pushing force in the horizontal direction, and a bent abdicating space is formed at the end part of the pull arm 113 close to the crank 112 so as to abdicate the installation positions of the crank 112 and the lifting speed reducer 111. The other end of the pull arm 113 is in transmission connection with any lifting mechanism or link mechanism. As shown in fig. 4, in the highest lifting position, the two ends of the pull arm 113 are movably connected to each other and are respectively located at two sides of the swinging position of the crank, and on the same straight line, a dead point position is formed at this time, and through the dead point position, a parallelogram mechanism formed between the lifting mechanisms forms a stable support for the lifting platform lifted up and the load thereon; referring to fig. 5 and 8, in the lowest position of the lifting platform, the movable connection point at the two ends of the pull arm 113 is located at the same side of the swinging position of the crank and on the same straight line, and at this time, another dead point position is formed, and through this dead point position, the parallelogram mechanism formed between the lifting mechanisms forms a stable support for the lifting platform at the lower position.

The link mechanism 105 comprises a link 117 and a connector 118, and the connector 118 is movably connected with the lower end of the pull arm 113 in the lifting mechanism in a pin shaft mode; one end of the link 117 is connected to the connector 118, and the other end is connected to the connector 118 of the adjacent link mechanism, and the link 117 is horizontally arranged between the adjacent elevating mechanisms and transmits the driving force of the elevating driving mechanism.

When the pull arm 113 is connected with the lifting mechanism, the pull arm is in transmission connection with one end of a lifting rocker arm 106 of the lifting mechanism; when the pull arm is connected to the linkage mechanism, the pull arm is drivingly connected to the connector 118 in the linkage mechanism.

The existing transfer device comprises a lifting table, a plurality of driving wheels arranged on the lifting table, a moving table for bearing the transferred object, and a driving mechanism for driving the driving wheels to rotate, wherein the moving table is placed above the driving wheels, and the moving table is enabled to realize transfer action through the rotation of the driving wheels. However, in such a transfer structure, when the mobile station is long and requires long distance, fast transfer, and heavy load, the transfer stability is poor, that is, the mobile station fluctuates up and down. The main reasons are as follows: during heavy load, the moving platform below the transferred object is pressed downwards to deform due to the weight of the transferred object, the contact surface between the moving platform and the driving wheel is changed, and the transmission of the driving force of the driving wheel is influenced, so that in the heavy load and rapid transfer process, the contact surface between the moving platform and the driving wheel is changed due to the deformation of the moving platform, the fluctuation of the moving platform is large, and the operation stability is poor.

The transfer device 104 provided on the lift table 101 in the present application includes a movable table 119 and a transfer drive mechanism 120, and the movable table 119 supports the object to be transferred placed thereon; the moving table 119 is moved back and forth in the horizontal direction on the elevating table 101; the transfer drive mechanism 120 provides a driving force for the moving stage 119 to reciprocate on the elevating stage 101.

A roller group is arranged below the moving table 119, the roller group comprises a plurality of rollers 121 arranged at intervals, the moving table 119 is supported on the lifting table 101 through the plurality of rollers 121, and the moving table 119 and an object to be loaded on the moving table are shared and supported through the distributed rollers 121, so that the deformation of the moving table after being loaded is reduced. All the rollers 121 in the roller group have the same rolling direction, that is, the rolling surfaces of all the rollers are arranged in the same direction, so that all the rollers roll in the same linear direction in a reciprocating manner.

A rolling guide member 122 corresponding to the roller group is fixedly provided on the lifting table 101, the rolling guide member 122 is arranged on the lifting table 101 in an extending manner along the reciprocating direction of the moving table 119, the arrangement length of the rolling guide member 122 is smaller than that of the lifting table 101, and the rolling guide member 122 has a guide plane 123 in rolling engagement with the rolling surface (outer circumferential surface of the roller) of the roller 121 in the roller group. The rolling guide 122 is a linear guide, and the upper surface of the linear guide is flush with the same horizontal plane, i.e. the guide plane 123 is formed. The rollers in the roller group roll on the guide plane to ensure the stability of the rollers in the rolling process. The rolling wheel set is arranged below the mobile platform, the mobile platform and an object on the mobile platform are shared and borne through the distributed rolling wheels, the integral deformation of the mobile platform after load is reduced, and the rolling wheels are matched with the guide plane of the rolling guide component in a guide mode, so that the load transferring stability can be improved under the conditions of long-distance and long-distance demand, quick load transferring and heavy load of the mobile platform, and the up-and-down fluctuation risk of the mobile platform is reduced.

In order to better form a stable support for the moving table, two sets of roller sets are disposed on the moving table 119, the two sets of roller sets are disposed on two sides of the moving table 119, and two sets of rolling guide members 122 are disposed on the lifting table 101 and are in one-to-one correspondence with the two sets of roller sets.

The movable table 119 comprises two movable side frames 124 arranged in parallel and a plurality of movable connecting frames 125; the two moving side frames 124 are arranged side by side at intervals, and the plurality of moving connecting frames 125 are fixedly arranged between the two moving side frames 124, so that the two moving side frames 124 and the plurality of moving connecting frames 125 form a whole to form a moving table. The movable connecting frame 125 and the movable side frame 124 can be fixedly connected by a conventional fixing method, such as welding, bolts, etc.

The movable side frame 124 has a mounting space 126 for mounting the roller set, the rollers in the roller set are arranged in the mounting space 126 in the movable side frame at intervals, the rollers are mounted in the mounting space through roller shafts 127, two ends of the roller shafts 127 are respectively supported by the side walls of the movable side frame, and the lower portion of the roller 121 is exposed out of the mounting space and is positioned below the movable side frame and is in contact with the guide plane of the roller guide below the rollers. Disposing the roller 121 in the installation space 126 may be understood as forming a shield for the roller 121, and may also be understood as avoiding the roller from being exposed to interfere with the placement of the object above the mobile station, may also be understood as reducing the occupied space of the mobile station, and may also be understood as lowering the center of gravity of the mobile station to enhance the stability during operation.

The inside of the movable side frame 124 is a rectangular installation space, that is, the movable side frame adopts a support member with a rectangular cross section and a hollow inside, and the bottom of the movable side frame is provided with a yielding notch for exposing the lower part of the roller 121 to the lower part of the movable side frame. Namely, a yielding notch is arranged below each roller, and the length of the yielding notch can be slightly larger than the outer diameter of the roller, so that the roller can be assembled from the yielding notch; of course, the lower part of the movable side frame can be completely opened, and after the rollers are assembled to the movable side frame, reinforcing members are fixed on the side walls of the movable side frame between the adjacent rollers so as to fixedly connect two sides of the movable side frame.

In order to further restrict the roller 121 to reciprocate in the guiding direction of the rolling guiding component 122, a part or all of the roller 121 in the roller group is a roller with flanges 128 at two sides, so that the roller forms a clamping state and is in rolling fit with the rolling guiding component 122; the rib 128 is formed by extending outward from both sides of the outer circumference of the roller, and a ring groove 129 is formed in the middle of the outer circumference of the roller, the width of the ring groove 129 may be slightly larger than the width of the rolling guide member 122, and the upper portion of the rolling guide member 122 is located in the ring groove 129.

The lifting platform 101 comprises two bearing side frames 130 and a plurality of bearing connecting frames 131, the two bearing side frames 130 are arranged in parallel at intervals, and the plurality of bearing connecting frames 131 are fixedly arranged between the two bearing side frames 130 at intervals, so that the two bearing side frames and the plurality of bearing connecting frames form a whole to form the lifting platform; the rolling guide member 122 is fixedly installed above the load-bearing side frame 130.

The transfer driving mechanism 120 includes a power unit, a main driving component and a secondary driving component, wherein the power unit is arranged between the two bearing side frames 130, the main driving component is assembled at the power output end of the power unit, and the power of the power unit is transmitted to the main driving component, so that the main driving component generates driving force; the auxiliary driving part is fixedly arranged on the movable platform and is in transmission fit with the main driving part so as to enable the movable platform to move back and forth on the lifting platform.

The power unit comprises a driving motor 132 and a double-output speed reducer 133, the output end of the driving motor 132 is connected with the input end of the speed reducer 133, and the main driving part is arranged at the output end of the speed reducer; the main driving part is a driving gear 134, the auxiliary driving part is a rack 135, and the driving gear 134 and the rack 135 form meshing transmission; the rack gear 135 moves in the same direction with respect to the counter drive gear 134 as the roller 121 rolls on the rolling guide member 122 in the roller group. The inner sides of the two movable side frames 124 are respectively provided with a rack 135, teeth on the rack 135 are arranged downwards, two output ends of the speed reducer 133 are respectively provided with a driving gear 134, the driving gear 134 is positioned below the racks, and the teeth on the driving gear 134 are meshed with the teeth on the rack 135. The rack is arranged on the inner side of the moving side frame, so that the reciprocating of the moving platform is restrained, namely the possibility of the moving platform deviating is reduced.

And a constraining means for constraining the rack by cooperating with the driving gear, a constraining channel for constraining the rack 135 is formed between the constraining means and the driving gear 134. The restraining device adopts a restraining block 136, the restraining block 136 is mounted on a mounting platform 138 of the transfer driving mechanism through a bracket 137, the restraining block 136 is positioned above a rack 135, and a driving gear 134 is positioned below the rack 135, so that the up-and-down movement of the rack is restrained, the horizontal movement of the rack is not restrained, and the stability of the moving platform in the reciprocating movement process is further improved.

The transfer driving mechanism is assembled on the installation platform 138, and the installation platform 138 and the lifting platform 101 are fixedly arranged, namely when the lifting platform 101 ascends or descends, the installation platform moves up and down along with the lifting platform; a guide frame 139 is arranged below the mounting platform, and a guide mechanism 140 for forming lifting guide for lifting the mounting platform 138 is arranged between the mounting platform 138 and the guide frame 139, wherein the guide mechanism can be realized by adopting a sliding type or a rolling type. The application adopts a rolling type structure, and specifically comprises the following steps: a bracket 141 is installed below the middle part of the installation platform 138, a guide roller 142 is installed on the side surface of the bracket 141, a guide space into which the bracket 141 extends is formed in the guide frame 139, and a guide rail 143 matched with the guide roller is vertically installed on the inner side of the guide space. The guide rollers 142 are guided vertically along the guide rails 143 to form an inner roll, so that the mounting platform 138 is stably and smoothly lifted.

The lifting driving mechanism, the transfer driving mechanism, the lifting mechanism and the connecting rod mechanism are all arranged between the base and the lifting platform, occupation of space is reduced, and the overall structure of the reciprocating conveyor is optimized. When a plurality of reciprocating conveyors are used in combination, in order to ensure the synchronism among the plurality of reciprocating conveyors, the lifting motors in the lifting driving mechanisms in the plurality of reciprocating conveyors can be synchronously controlled, and the driving motors in the transferring mechanism in the plurality of reciprocating conveyors can also be synchronously controlled, so that the problem that the synchronism is difficult to control when the plurality of reciprocating conveyors are used in combination is solved.

In order to reduce the output force of the lifting driving mechanism, a counterweight structure is further arranged, so that the counterweight structure is matched with the lifting rocker arm 106 in the lifting process of the lifting platform, and the lifting or/and falling swing force of the lifting rocker arm is reduced. The counterweight structure specifically comprises a counterweight block 144 and a counterweight connecting piece 145, wherein the middle part of the counterweight connecting piece 145 is rotatably arranged on the lifting base 108, the rotating part of the middle part of the lifting rocker arm 106 and the rotating part of the middle part of the counterweight connecting piece are arranged by adopting a coaxial line, namely the middle part of the counterweight connecting piece can be rotatably assembled on the rotating shaft 109, the counterweight block 144 is fixedly assembled at one end of the counterweight connecting piece 145, the end and the lower end of the lifting rocker arm are positioned at the same side of the rotating shaft 109, and the other end of the counterweight connecting piece is fixedly connected with the upper end of the lifting rocker arm close to one side of the lifting base; because the rotation setting at counter weight connecting piece middle part, and the fixed connection of lift swing arm upper end and counter weight connecting piece, the balancing weight sets up with the same one side of lift rocking arm lower extreme, when the lift swing arm is clockwise swing in the picture (the elevating platform rises, it is heavier to carry the load of carrying the device), the balancing weight also forms clockwise downswing thereupon to can reduce the clockwise needle pendulum power of lift swing arm, likewise, when the counter-clockwise swing of lift swing arm (the elevating platform descends), can make the elevating platform steadily descend through the balancing weight.

Claims

1. The reciprocating conveyor comprises a base, a lifting platform, a lifting mechanism and a lifting driving mechanism, and is characterized in that,

at least two lifting mechanisms are arranged between the base and the lifting platform;

the lifting mechanism drives the lifting platform to ascend or descend;

the lifting driving mechanism is a crank rocker driving mechanism.

2. The reciprocating conveyor of claim 1, wherein the adjacent lifting mechanisms are synchronously connected by a link mechanism, and a parallelogram mechanism is formed between the adjacent lifting mechanisms by the link mechanism;

the lifting driving mechanism is in transmission connection with any one lifting mechanism.

3. The reciprocating conveyor of claim 2, wherein the lifting mechanism comprises a lifting rocker arm, a lifting base and a lifting base, and the lifting base is fixedly connected with the lifting platform;

4. The reciprocating conveyor of claim 2 or 3, wherein the lifting drive mechanism comprises a lifting motor, a lifting reducer, a crank, a pull arm;

5. The reciprocating conveyor of claim 4, wherein the linkage mechanism comprises a link, a connector, the connector is movably connected with a pull arm in the lifting mechanism; one end of the connecting rod is connected with the connector, and the other end of the connecting rod is connected with the connector in the adjacent connecting rod mechanism.

6. The shuttle conveyor according to claim 1, 2, 3 or 5 wherein the transfer means includes a moving table for bearing the object to be transferred placed thereon, a transfer drive mechanism;

the mobile station moves back and forth on the lifting platform;

7. The reciprocating conveyor according to claim 6, wherein the transfer driving mechanism is mounted on a mounting platform, the mounting platform is fixedly disposed with the elevating platform, a guide frame is disposed below the mounting platform, and a guide mechanism for forming an elevating guide for elevating the mounting platform is disposed between the mounting platform and the guide frame.

8. The shuttle conveyor of claim 7 wherein the transfer drive mechanism includes a power unit, a primary drive member, and a secondary drive member, the power unit being mounted on the mounting platform,

9. The reciprocating conveyor of claim 3, further comprising a counterweight structure that cooperates with the lifting rocker arm during raising and lowering of the lift table to reduce the lifting and/or lowering swinging force of the lifting rocker arm.

10. The reciprocating conveyor of claim 9, wherein the counterweight structure comprises a counterweight and a counterweight connector, the middle part of the counterweight connector is rotatably disposed on the lifting base, the counterweight is disposed at one end of the counterweight connector, the other end of the counterweight connector is fixedly connected with the lifting rocker near one side of the lifting base, and the middle rotating part of the lifting rocker and the middle rotating part of the counterweight connector are coaxially disposed.