CN108394669A - A multi-station access device - Google Patents

Abstract

The invention provides multi-station access equipment, which is used for solving the problem of multi-station access difficult in mechanical assembly and debugging and comprises a lifting ladder frame and a lifting cargo carrying platform, wherein two lifting rails are symmetrically arranged on two sides in the lifting ladder frame, one sides of the two lifting rails are movably connected with two sides of the lifting cargo carrying platform, and the lifting cargo carrying platform consists of a cargo carrying platform supporting frame, two cargo carrying platform guide wheel sets and a multi-station cargo fork mechanism; the multi-station access equipment can conveniently fork goods through the U-shaped fork, and the fork can move in two directions through the fork moving mechanism, so that the fork can be displaced and stretched, and the goods or workpieces can be conveniently forked; its simple mechanical structure belongs to the modular design, but the access of unit part realization not unidimensional stock unit and not unidimensional work piece can be changed, and can upgrade, and convenient equipment change need not change the fork, can realize multiple goods and save, and the flexibility is high.

Description

A multi-station access device

technical field

The invention relates to the field of access equipment, in particular to a multi-station access equipment.

Background technique

In many warehousing or machining fields, it is necessary to use goods or workpiece handling equipment. When moving goods or workpieces, manpower is often too small, and mechanical equipment that can lift or lower goods or workpieces is needed. Therefore, the more More and more access devices are used, and smart storage needs to use related access mechanisms.

At present, in the field of access equipment, the equipment often has a large number of mechanical parts, and mechanical assembly and debugging are difficult. To achieve multi-station access, the number of motors increases, and electrical debugging is cumbersome, programming is complicated, and the cost is high. Therefore, we have made improvements to this , a multi-station access device is proposed.

Contents of the invention

The invention provides a multi-station access device to solve the defects of cumbersome electrical debugging, complicated programming and high cost in the prior art.

In order to solve the problems of the technologies described above, the present invention provides the following technical solutions:

The invention proposes a multi-station access device, which includes an elevator frame and an elevator loading platform. Two lifting rails are arranged symmetrically on both sides inside the elevator frame. The two sides are connected flexibly. The lifting cargo platform is composed of a cargo platform supporting frame, two cargo platform guide wheel sets and a multi-station fork mechanism. The two cargo platform guide wheel sets are respectively fixed on the two sides of the lifting cargo platform. On the side, the multi-station fork mechanism is set at the bottom of the inner side of the supporting frame of the loading platform. The multi-station fork mechanism is composed of two multi-station fork support plates and two symmetrically arranged fork moving mechanisms. The fork moving mechanism is movably connected to the two multi-station fork support plates through two ball guide shafts, two linear guide rails and a double helix left and right screw, and one side of the two multi-station fork support plates is fixed respectively. It is equipped with a displacement drive motor and a telescopic drive motor;

The output shaft of the displacement drive motor is connected to the inside of the fork displacement driving wheel. One end of the spiral left and right screw is connected, the other end of the double helix left and right screw is connected with one side of one of the multi-station fork support plates, and the other side of one of the multi-station fork support plates is equipped with a synchronous The belt pulley is connected with the output shaft of the telescopic drive motor, and the outer side of the synchronous belt pulley and the two synchronous belt pulleys symmetrically arranged on the other side of the multi-station fork support plate is provided with a second co-cloth belt, and the second co-cloth belt The outer side is connected by the outer side of two symmetrically arranged synchronous belt idlers;

The fork moving mechanism is composed of two timing belt support plates, the fork moving block and the first timing belt. The two timing belt support plates are symmetrically fixed on one side of the fork moving block. There are synchronous belt pulleys between the moving blocks. The outer sides of the two synchronous belt wheels are connected by the first synchronous belt. The outer side of the first synchronous belt is fixed with a synchronous belt connection block. The top of the synchronous belt connection block is connected with a rack and pinion mechanism. The bottom end of the support plate of the rack and pinion mechanism is fixedly connected, and one side of the support plate of the rack and pinion mechanism is connected with one side of the support plate of another rack and pinion mechanism through the rack and pinion mechanism;

The other side of the support plate of the other rack and pinion mechanism is fixedly connected to one side of the middle plate. The U-shaped chute provided on the top of the middle plate is movably connected to the slider provided at the bottom of the fork partition. The bottom of the plate is also fixedly connected with the top of the rack and pinion mechanism, the top of the fork partition is fixedly connected with the bottom of the fork, and the middle plate is connected with the U-shaped top of the lower fork partition through the slider at the bottom. The chute is flexibly connected, the bottom of the lower fork spacer is fixedly connected with the top of the guide rail pad, one side of the guide rail pad is fixedly connected with the bottom side of the rack and pinion mechanism, and the bottom end of the guide rail pad is connected with the moving block of the fork active connections.

Further, the four corners of one side of the guide wheel set of the loading platform are provided with guide wheels, and the guide wheels are movably connected with the inner side of the lifting track.

Further, the cargo fork is in an inverted U shape.

Further, the diameter of the fork displacement driving wheel is larger than the diameter of the pallet fork displacement driven wheel.

Further, the double-helix left and right screw is symmetrically provided with two sections of threads of the same length, and the direction of rotation of the two sections of threads is opposite, and the threads are matched with the threaded holes in the middle of the fork moving block.

Further, the rack-and-pinion mechanism is composed of two racks and three gears, and the three gears are arranged alternately and meshed sequentially, wherein two gears are meshed with the top rack, and the other gear is meshed with the bottom rack connect.

Further, the three gears are fixed on the gear shaft provided between the two rack and pinion mechanism support plates through bearings, the top of the upper rack is fixedly connected with the bottom of the fork partition, and the lower rack is connected to the guide rail. One side of the spacer is fixedly connected.

Further, the displacement drive motor and the telescopic drive motor are electrically connected to an external power supply through a displacement switch and a telescopic switch respectively arranged on the elevator frame.

Further, the ball guide shaft is socketed with two ball guide sleeves respectively arranged inside the two first conveyor belts.

By adopting the above-mentioned technical scheme, the beneficial effects of the present invention are: the multi-station access equipment can conveniently fork goods or workpieces through the U-shaped fork provided, and then pass through the provided fork moving mechanism , can make the fork move in two directions, it can be changed, and can be stretched, so that the goods or workpieces can be easily forked. The simple mechanical structure belongs to the modular design, and the unit parts can be changed to realize the inventory of different sizes. The unit and workpieces of different sizes can be accessed and upgraded, which is convenient for assembly and change, without changing the fork, and can realize the storage of various goods with high flexibility.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the lifting platform of the present invention;

Fig. 3 is a structural schematic diagram of the moving mechanism of the pallet fork of the present invention;

Fig. 4 is a schematic diagram of the multi-station pallet fork mechanism of the present invention;

Fig. 5 is a schematic diagram of the front face structure of the multi-station fork mechanism of the present invention;

Fig. 6 is a schematic diagram of the fork moving mechanism of the present invention;

Fig. 7 is a schematic structural view of the rack and pinion mechanism of the present invention;

Fig. 8 is a schematic diagram of the circuit connection of the present invention.

Among them: 1. Elevating ladder frame; 2. Lifting cargo platform; 3. Lifting track; 4. Supporting frame of cargo platform; 5. Guide wheel set of cargo platform; 6. Multi-station fork mechanism; 7. Fork ;8. Guide rail pad; 9. Multi-station fork support plate; 10. Timing belt support plate; 11. Fork moving block; 12. Ball guide shaft; 13. Lower fork partition; 14. Double helix left and right Lead screw; 15. Linear guide rail; 16. First synchronous belt; 17. Second synchronous belt; 18. Displacement drive motor; 19. Telescopic drive motor; 20. Synchronous belt connection block; 22. Rack and pinion mechanism; 23. Middle plate; 24. Fork partition; 25. Driving wheel for shifting fork; 26. Driven wheel for shifting fork;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figure 1-8, the multi-station access equipment includes an elevator frame 1 and an elevator cargo platform 2. Two elevator rails 3 are arranged symmetrically on both sides inside the elevator frame 1, and the two elevator rails 3 One side is movably connected with both sides of the lifting cargo platform 2. The lifting cargo platform 2 is composed of a cargo platform supporting frame 4, two cargo platform guide wheel sets 5 and a multi-station fork mechanism 6. The platform guide wheel group 5 is respectively fixed on both sides of the lifting cargo platform 2, and the multi-station fork mechanism 6 is arranged on the bottom of the inner side of the cargo platform support frame 4. The multi-station fork mechanism 6 is composed of two multi-station cargo The fork support plate 9 and two symmetrically arranged fork moving mechanisms 27 are composed of two ball guide shafts 12 and two linear guide rails arranged between the two fork moving mechanisms 27 and the two multi-station fork support plates 9. 15 are movably connected with a double helix left and right screw screw 14.

One side of the two multi-station pallet fork support plates 9 is respectively fixedly provided with a displacement drive motor 18 and a telescopic drive motor 19, and the output shaft of the displacement drive motor 18 is connected with the internal connection of the displacement driving wheel 25 of the pallet fork. The outside of displacement driving wheel 25 is movably connected with the outside of pallet fork displacement driven wheel 26 by transmission belt, and the inside of cargo fork displacement driven wheel 26 is connected with one end of double-helix left-right screw 14, and double-helix left-right screw 14 The other end of the fork is connected to one side of one of the multi-station fork support plates 9, and the synchronous pulley provided on the other side of one of the multi-station fork support plates 9 is connected to the output shaft of the telescopic drive motor 19, synchronously The outer side of the pulley and the two synchronous pulleys symmetrically arranged on the other side of the multi-station fork support plate 9 is provided with a second co-cloth belt 17, and the outer side of the second co-cloth belt 17 passes through two symmetrically arranged synchronous belts. The outer connection of the idler wheel.

Wherein, the pallet fork moving mechanism 27 is made up of two synchronous belt support plates 10, the pallet fork mobile block 11 and the first synchronous belt 16, and the two synchronous belt support plates 10 are symmetrically fixed on one side of the pallet fork mobile block 11, and the two A synchronous belt pulley is arranged between the first synchronous belt support plate 10 and the fork moving block 11, the outer sides of the two synchronous belt wheels are connected by the first synchronous belt 16, and the outer side of the first synchronous belt 16 is fixedly provided with a synchronous belt connection block 20 , the top of the synchronous belt connection block 20 is fixedly connected to the bottom end of a rack and pinion mechanism part support plate 21, and one side of the rack and pinion mechanism part support plate 21 is supported by another rack and pinion mechanism part through a rack and pinion mechanism 22 One side of the plate 21 is connected, and the other side of the supporting plate 21 of another rack and pinion mechanism is fixedly connected with one side of the middle plate 23 .

The U-shaped chute provided on the top of the middle plate 23 is movably connected with the slide block provided at the bottom of the fork partition 24, and the bottom of the fork partition 24 is also fixedly connected with the top of the rack and pinion mechanism 22, and the fork partition The top of plate 24 is fixedly connected with the bottom end of cargo fork 7, and middle plate 23 is movably connected with the U-shaped chute that lower fork dividing plate 13 top is provided with by the slide block that bottom is provided with, and the bottom of lower fork dividing plate 13 is connected with The top of guide rail cushion block 8 is fixedly connected, and one side of guide rail cushion block 8 is fixedly connected with one side of rack and pinion mechanism 22 bottoms, and the bottom of guide rail cushion block 8 is flexibly connected with pallet fork moving block 11.

In specific implementation, the four corners of one side of the guide wheel set 5 of the loading platform are all provided with guide wheels, and the guide wheels are movably connected with the inner side of the lifting track 3, so as to facilitate lifting or lowering of the goods so as to be transported to the desired position.

A preferred embodiment of the present invention is: the cargo fork 7 is in an inverted U shape, which can fork goods more conveniently.

The preferred embodiment of the present invention is: the diameter of the fork shifting driving wheel 25 is greater than the diameter of the fork shifting driven wheel 26, so that the transmission efficiency is better, and the width between the two fork moving blocks 11 can be adjusted more conveniently, thereby realizing the incompatibility. Fork picking of dimension goods.

A preferred embodiment of the present invention is: the double-helix left-right screw 14 is symmetrically provided with two threads of the same length, and the direction of rotation of the two threads is opposite, and the thread is matched with the threaded hole in the middle of the fork moving block 11, which can Realize that two pallet fork moving blocks 11 move to different directions.

A preferred embodiment of the present invention is: the rack and pinion mechanism 22 is made up of two racks and three gears, and the three gears are arranged alternately and meshed sequentially, wherein two gears are meshed with the rack on the top, and the other gear It meshes with the rack at the bottom, and the rack connected to the rail pad 8 is fixed. The synchronous belt connection block 20 drives the rack and pinion mechanism 22 to move back and forth, giving the gear a driving force to make the gear rotate forward, thereby driving the connection The rack on the fork dividing plate 24 moves back and forth to realize the expansion and contraction of the fork 7 .

The preferred embodiment of the present invention is: the three gears are fixed on the gear shaft provided between the two rack and pinion mechanism support plates 21 through bearings, and the top of the upper rack is fixedly connected with the bottom of the fork partition 24, The rack at the bottom is fixedly connected to one side of the guide rail pad 8, and through engagement with the gear, the two racks move in opposite directions, thereby realizing the elongation and contraction of the pallet fork 7 .

A preferred embodiment of the present invention is: the displacement drive motor 18 and the telescopic drive motor 19 are respectively connected to the external motion control system through the displacement switch and the telescopic switch arranged on the elevator frame 1, so that the fork 7 can be easily controlled to pick up different The size of the goods, and then realize the access to the goods.

The preferred embodiment of the present invention is: the ball guide shaft 12 is socketed with two ball guide bushes respectively arranged inside the two first conveyor belts 16, so that the second conveyor belt 17 and the two first conveyor belts 16 can rotate synchronously.

In the specific implementation, the displacement driving motor 18 is used to drive the fork displacement driving wheel 25 to rotate, and the pallet fork displacement driven wheel 26 promptly drives the double helix left and right rotation screw 14 to rotate, because the screw thread direction is oppositely set, the two cargo can be rotated. The fork moving block 11 moves in the opposite direction at the same time, so as to realize the access to workpieces of different sizes. The synchronous pulley is driven by the telescopic drive motor 18, and all the synchronous belts rotate in the same direction, so that the synchronous belt connecting block 20 drives the gear teeth. The support plate 21 of the bar mechanism moves, and the internal gear meshes with the two racks, so that the two racks move in the opposite direction, so as to realize the extension and contraction of the fork 7, so that the goods can be easily accessed. The structure is simple, and the two motors can realize the access of any position and any unit, and the expansion and contraction of any length.

During work, when it is necessary to fork the goods, turn on the displacement switch and the telescopic switch, and use the displacement drive motor 18 to drive the fork displacement driving wheel 25 to rotate, and the cargo fork displacement driven wheel 26 drives the double helix left and right rotation screw 14 Rotation, because the thread direction is oppositely set, the two fork moving blocks 11 can be moved in opposite directions at the same time, so as to realize the access to workpieces of different sizes, and the synchronous belt pulley is driven by the telescopic drive motor 19. Rotate in the same direction, so that the synchronous belt connecting block 20 drives the rack and pinion mechanism support plate 21 to move back and forth, and the internal gear is meshed with the two racks to make the gear rotate forward, thereby driving the rack connected to the fork partition Front and rear, the elongation and contraction of the cargo fork 7 are realized. After the cargo fork 7 picks up the goods, the cargo fork 7 is retracted, and the cargo platform guide wheel group 5 is used to slide between the lifting rails 3 to realize the lifting of the cargo platform 2. The height is raised or lowered, so that the goods picked up by the pallet fork 7 can be transported to different heights, thereby realizing the access of the goods.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention within.

Claims (9)

1. a kind of multistation access arrangement, including lifting ladder (1) and lifting loading platform (2), which is characterized in that the lift The internal both sides of frame (1) are arranged symmetrically, and there are two fluctuating orbit (3), side and the lifting loadings of two fluctuating orbits (3) The both sides of platform (2) are flexibly connected, and the lifting loading platform (2) is by loading platform braced frame (4), two loading platform guide wheel groups (5) and multistation fork mechanism (6) composition, two loading platform guide wheel groups (5) are individually fixed in lifting loading platform (2) Both sides, the bottom that the multistation fork mechanism (6) is arranged on the inside of loading platform braced frame (4), the multistation pallet fork machine Structure (6) is made of two multistation pallet fork support plates (9) and two symmetrically arranged pallet fork mobile mechanisms (27), two goods Fork mobile mechanism (27) passes through two ball guiding axis (12), two the linear guides with two multistation pallet fork support plates (9) (15) it is flexibly connected with a double helix left-right turning screw rod (14)；

The side of two multistation pallet fork support plates (9) is fixedly installed displacement driving motor (18) and telescopic drive respectively The output shaft of motor (19), the displacement driving motor (18) is connect with the inside of pallet fork displacement driving wheel (25), the pallet fork The outside that the outside of displacement driving wheel (25) conjugates driven wheel (26) by transmission belt with pallet fork is flexibly connected, the pallet fork displacement The inside of driven wheel (26) is connect with one end of double helix left-right turning screw rod (14), the double helix left-right turning screw rod (14) it is another One end is connect with the side of one of multistation pallet fork support plate (9), one of them multistation pallet fork support plate (9) The output axis connection of synchronous pulley and telescopic drive motor (19) that the other side is equipped with, the synchronous pulley and two are symmetrical arranged The second same strap (17), the second same cloth are provided on the outside of the synchronous pulley of multistation pallet fork support plate (9) other side The outside of band (17) is connected by the outside of two symmetrically arranged synchronous belt idle wheels, and the pallet fork mobile mechanism (27) is by two A synchronous belt support plate (10), pallet fork movable block (11) and the first synchronous belt (16) composition；

The symmetrical side for being fixed at pallet fork movable block (11) of two synchronous belt support plates (10), two synchronous belts Synchronous pulley is both provided between support plate (10) and pallet fork movable block (11), the outside of two synchronous pulleys is same by first Step band (16) connects, and synchronous belt link block (20) is fixedly installed on the outside of first synchronous belt (16), and the synchronous belt connects The top for connecing block (20) is fixedly connected with the bottom end of a rack and pinion mechanism portion support plate (21), the rack and pinion mechanism portion The side of support plate (21) is connected by the side of rack and pinion mechanism (22) and another rack and pinion mechanism portion support plate (21) It connects, the other side of another rack and pinion mechanism portion support plate (21) is fixedly connected with the side of intermediate plate (23)；

The U-shaped sliding slot that the top of the intermediate plate (23) is equipped with is flexibly connected with the sliding block that pallet fork partition board (24) bottom is equipped with, institute The bottom end for stating pallet fork partition board (24) is also fixedly connected at the top of rack and pinion mechanism (22), the top of the pallet fork partition board (24) It is fixedly connected with the bottom end of pallet fork (7), the sliding block that the intermediate plate (23) is equipped with by bottom and lower fork partition board (13) top are set The U-shaped sliding slot flexible connection having, the bottom end of the lower fork partition board (13) is fixedly connected with the top of guide rail cushion block (8), described to lead The side of rail pad block (8) is fixedly connected with the side of rack and pinion mechanism (22) bottom, the bottom end of the guide rail cushion block (8) and goods Pitch the flexible connection of movable block (11).

2. a kind of multistation access arrangement according to claim 1, which is characterized in that the loading platform guide wheel group (5) The quadrangle of side is both provided with directive wheel, and the directive wheel is flexibly connected with the inside of fluctuating orbit (3).

3. a kind of multistation access arrangement according to claim 1, which is characterized in that the pallet fork (7) is inverted u-shaped.

4. a kind of multistation access arrangement according to claim 1, which is characterized in that the pallet fork displacement driving wheel (25) Diameter is more than pallet fork and conjugates driven wheel (26) diameter.

5. a kind of multistation access arrangement according to claim 1, which is characterized in that the double helix left-right turning screw rod (14) screw thread of two sections of equal lengths, and oppositely oriented, the screw thread and the pallet fork movement of two sections of screw threads are symmetrically arranged with Threaded hole in the middle part of block (11) matches setting.

6. a kind of multistation access arrangement according to claim 1, which is characterized in that the rack and pinion mechanism (22) by Two racks and three gears composition, three gears are staggered, and engagement connection successively, gear described in two of which with The rack engagement connection at top, another described gear engage connection with the rack of bottom.

7. a kind of multistation access arrangement according to claim 6, which is characterized in that three gears are solid by bearing Be scheduled on the gear shaft being equipped between two rack and pinion mechanism support plates (21), position the top of the upper rack and pallet fork every The bottom of plate (24) is fixedly connected, and the rack of the position under is fixedly connected with the side of guide rail cushion block (8).

8. a kind of multistation access arrangement according to claim 1, which is characterized in that the displacement driving motor (18) and Telescopic drive motor (19) is electrical by the way that the change bit switch on lifting ladder (1) and telescoping switch and external power supply is arranged respectively Connection.

9. a kind of multistation access arrangement according to claim 1, which is characterized in that the ball guiding axis (12) and two A ball guide sleeve socket being separately positioned on the inside of two the first conveyer belts (16).