CN108584270A - The track exchanging device of stereo warehouse - Google Patents

Abstract

The present invention proposes a kind of track exchanging device of stereo warehouse, is related to the commodity shelf system in storage field, for solving the problems, such as that the steering of lifting trolley switches tracks.The device includes：Twilight orbit for running track end to link together and positioned at twilight orbit, be capable of the track exchanging trolley of back and forth movement on it；The track exchanging trolley includes vehicle body, and walking mechanism is equipped on vehicle body；Walking mechanism is connect with driving device, and walking mechanism is driven by driving device, and track exchanging trolley is driven to be moved back and forth on twilight orbit；The docking orbit of docking can be adapted to loading trolley running track by being additionally provided on track exchanging trolley；Docking orbit is arranged on vehicle body.Compared with prior art, track exchanging device of the invention uses hoisting structure, the track exchanging trolley for devising twilight orbit and being lifted on twilight orbit.This design smoothly realizes being switched fast, turning between multiple tracks based entirely on the track structure of lifting loading trolley.

Description

Three-dimensional storage rail changing device

technical field

The invention relates to a shelf system in the storage field, in particular to a rail changing device.

Background technique

A large number of shelves are required in existing logistics storage or warehouses. Many of the existing shelves are mobile shelves with their own rollers. The mobile shelves are arranged on the track, and the shelves run back and forth on the track to transport goods through the driving device. In order to improve efficiency, the shelves usually have multiple layers, and goods should be placed on each layer. Since there are goods on the shelves, the movement of the shelves consumes a lot of power, and for the sorting, loading, and unloading of a certain shelf, the entire shelf system needs to be started and moved as a whole, and the energy consumption is high, especially ineffective. High power consumption and low power utilization. Each mobile shelf often weighs hundreds of kilograms. During the overall moving process, the mobile shelves collide with each other and other losses are large, which has high requirements for the track and the braking system. In the existing shelf cycle movement system, the common shelf steering design is a track loop design, that is, the shelf track has a large turning radius, and the shelf performs a turning cycle on the turning track. In the current shelf rail change design, there is also a traversing device, that is, a traversing track is designed at both ends of the track, and a shelf transfer device is provided on the traversing track, and the shelf is transferred to another track through the transfer device. Since the rack is of a multi-layer structure, it has a great weight, and after it is transferred to the transfer device, the transfer device requires a large dragging power. This structure has high requirements on the load-bearing strength, impact strength and power of the transfer device.

Contents of the invention

The technical problem to be solved by the present invention is to provide a rail changing device for three-dimensional storage, which is used to solve the problem of turning and changing rails of hoisting trolleys.

In order to solve the above technical problems, the present invention proposes a three-dimensional storage rail changing device, which includes: a transition rail for connecting the ends of the running rails together and a rail changing trolley that is located on the transition rail and can move back and forth on it ;

The track-changing trolley includes a vehicle body, on which a traveling mechanism is installed; the traveling mechanism is connected to a driving device, and the traveling mechanism is driven by the driving device to drive the rail-changing trolley to move back and forth on the transition track;

The track-changing trolley is also provided with a docking track that can be adapted to be docked with the running track of the load trolley; the docking track is arranged on the vehicle body.

Preferably: the transition track is a traversing track, which is perpendicular to the running track. In other schemes, the transition track can be designed as a curved track.

Preferably: the transition track is connected with the ends of at least two running tracks. The increased number of running tracks side by side can increase the capacity of the footprint. Compared with the prior art, two side-by-side running tracks generally form a circuit. The present invention can arrange multiple running tracks side by side to realize a parallel structure. On the transition track, the multi-task work of multiple track-changing trolleys can be realized, and multiple track-changing The trolley carries out transmission and track changing operations for different parallel running tracks, or picking, loading and unloading operations, etc. This method greatly improves work efficiency and improves the utilization rate of the site.

Preferably: the transition track and/or the docking track is a groove rail with an inner opening; the groove rail is tubular, and a single groove rail includes a lumen for the rollers to roll in; a single groove rail is provided with a strip Shaped axial opening for the insertion of the roller, which is the axial opening of the lumen. In one embodiment, the top of the single grooved rail is flat. In one embodiment, the cross-section of a single grooved rail is a square shape including a notch, which is shaped like shape or shape. This groove rail structure is conducive to the rolling of the rollers in it, and it is easy to realize the scheme of hoisting and operation. In one embodiment, a temporary storage platform is installed above the groove rail, and the temporary storage platform is used for placing material boxes. The temporary storage platform is fixed on the groove rail, and its outer end protrudes from the traverse device. Since the top of the groove rail needs to have the load-bearing function of the material box at the same time, the groove rail structure can not only be used as a load-bearing frame, but also have the function of a guide rail.

Preferably: the groove rail includes two rails, the openings of which are opposite to each other.

Preferably: the docking rail is connected to the docking rail seat, and the docking rail seat is fixed on the vehicle body; wherein the docking rail is movably connected to the docking rail seat, and the docking rail is connected to the docking rail driver, and the docking rail driver drives the docking rail to make The docking track can move back and forth on the docking rail seat. The structure is a fine-tuning structure, and the docking of the docking track and the running track generally needs to be seamlessly connected, or the gap is small. Since the track-changing trolley needs to run on the transition track, it is difficult to realize the seamless docking. Through this structure, when the running track is docked with the docking track, the docking track is stretched out to dock with the running track, and after the load trolley enters the track-changing trolley, the docking track is adjusted so that it retreats into the middle position or a designated position of the track-changing trolley. The docking track is separated from the running track. This neither affects the docking of the track nor affects the operation of the track-changing trolley on the transition track.

Preferably: a slide block is provided on the outside of the docking track, the docking rail seat includes a slide groove, and the slide block is located in the slide groove of the docking rail seat. The docking track moves on the docking rail seat by sliding, and can also move in a small distance by rolling.

Preferably: a rail positioning sensor is provided between the docking rail and the running rail. The track positioning sensor is used to monitor the position of the track changing trolley on the transition track.

Preferably: a fixing device for the trolley is also provided on the vehicle body. The fixing device is used to fix the trolley. After the trolley enters the docking track, it may shake during the moving process. The fixing device is used to tighten the trolley and the trolley together to reduce the gap between them and reduce the trolley on the trolley. swing. Since there is a material box hoisted under the trolley, during the movement of the trolley, the shaking and swinging of the trolley will cause a large lateral force or shear force on the trolley, which will increase the risk of failure and affect the stability of the platform.

Preferably: the walking mechanism includes a roller device placed in the transition track, and the roller device includes vertical rollers and horizontal rollers in the transition track, wherein the vertical rollers roll on the inner bottom of the transition track, and the flat rollers roll on the transition track. Roll on the inside wall of the The vertical rollers are used to make the track-changing trolley roll along the track direction (longitudinal) on the transition track; the flat rollers keep the track-changing trolley wide in the transverse direction, avoiding obvious friction between the vertical rollers and the transition track, increasing their loss and Causes the trolley to vibrate laterally.

Preferably: a temporary storage platform for placing material boxes is also provided on the track changing device, and the temporary storage platform is arranged below the position when the track changing trolley docks with the running track. The temporary storage table is used for temporary storage of material boxes; or for picking of material boxes; or as a loading or unloading operation platform for material boxes. In a preferred embodiment, the temporary storage platform is provided with material box positioning protrusions or groove positions. The positioning protrusion or groove position is used for temporarily storing the material box on the temporary storage platform, so as to facilitate the repositioning of the trolley to accurately grab the material box.

Preferably: the walking mechanism includes a two-axis roller and a roller driving device; the roller driving device includes a motor and a transmission pair, and the transmission pair is connected to the roller driving device and the wheel shaft, and rollers are arranged at both ends of each shaft, and the roller driving device is driven by the transmission pair The axle rotates, and the axle drives the roller to rotate. In other embodiments, each shaft may be equipped with a driving device to form a forward and backward driving structure.

Preferably: the transmission pair is a belt transmission device, the belt transmission device is connected to the two shafts, the motor drives the belt on the belt transmission device, the belt drives the two shafts to rotate, and then drives the rollers to rotate. The advantage of the belt drive is that a belt drives the front and rear axles to rotate at the same time, forming a double-shaft synchronous drive structure. A belt pulley is arranged on the shaft, gear teeth are arranged on the belt, and the belt drives the shaft to rotate, and then drives the rollers on the shaft to rotate.

Preferably: the fixing device of the trolley is arranged on the side of the track-changing car space, and the fixing device of the trolley includes a fixing device motor, a compactor and an expander, wherein the expander is connected to the fixing device motor and the compactor, and fixed The motor of the device adjusts the advance and retreat of the compactor through the retractor. The compactor is preferably a plate, which minimizes or eliminates the gap between the trolley and the track change trolley by squeezing the sides of the trolley. The telescopic device is preferably a screw rod telescopic structure. In one embodiment, a screw hole is provided in the middle of the compactor, which is threaded to connect the screw rod expander. The compactor includes a contact plate that forms friction with the trolley and a connection part connected with the screw rod. The contact plate protrudes a certain distance from the front end of the connection part, and the end of the screw rod protrudes from the connection part without touching the trolley. , so as not to affect the pressing effect of the contact plate.

Preferably: the compactor is a friction plate with uneven surface, magnet or friction resin. When the surface of the trolley is made of iron, the compactor can be a magnet or electromagnet device. The friction resin can be an organic material such as tire rubber, silica gel, or plastic.

Preferably: the side with the opening on the docking track is the inner side of the docking track, the inner side includes the first side above the opening and the second side below the opening, and any side is provided with There are positioning holes for the track-changing trolley; a positioning sensor corresponding to the traveling positioning hole of the track-changing trolley is provided on the track-changing trolley, and the positioning sensor is fixed on the rail-changing trolley and is located in the lumen of the transition track.

Preferably: the transition track is installed under the hanging beam, the hanging beam is installed on the cross beam, and the cross beam is located outside the transition track, and the cross beam is installed on the column.

Preferably: two opposite docking rails are connected by a docking rail connector, and the docking rail connector is connected to an electric push rod transmission, and the electric push rod is connected to a push rod motor; the push rod motor drives the electric push rod to perform telescopic movement, and the electric push rod The push rod then drives the butt joint to move back and forth. In another embodiment, the push rod connection part can be fixed on the docking rail connection part, and the push rod connection part is connected with the electric push rod. The electric push rod drives the push rod connector to move, the push rod connector drives the docking rail connector to move, and the docking rail connector drives the docking rail seat to move back and forth.

Preferably: the temporary storage platform is also installed on a roller, a belt assembly line or a mobile AGV.

Preferably: the flat roller is an elastic roller.

The beneficial effects of the present invention are as follows:

Compared with the prior art, the rail changing device of the present invention adopts a hoisting structure, which is designed with a transition track and a track changing trolley hoisted on the transition track. The track-changing trolley includes a docking track consistent with the running track for receiving the towing trolley, and transfers the towing trolley to the corresponding running track after being stored. This design is completely based on the track structure of the hoisting trolley, and smoothly realizes fast switching and steering between multiple tracks.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments.

Fig. 1 is a schematic diagram of the front direction of the rail changing device.

Fig. 2 is a schematic diagram of the left view direction in Fig. 1 .

FIG. 3 is a schematic view of the top view of the structure in FIG. 1 .

Fig. 4 is an example diagram of a three-dimensional structure.

Fig. 5 is a three-dimensional structural schematic diagram of the track-changing trolley.

FIG. 6 is a schematic diagram of the structure in the left view direction of FIG. 5 .

FIG. 7 is a structural schematic view of the front view of FIG. 5 .

FIG. 8 is a schematic view of the structure in the plan view direction of FIG. 5 .

Fig. 9 is a three-dimensional schematic view of the internal structure of the track-changing trolley.

FIG. 10 is a schematic view of the structure in the front direction of FIG. 9 .

FIG. 11 is a schematic view of the structure in the top view direction of FIG. 9 .

Fig. 12 is a structural schematic diagram of the docking track.

Fig. 13 is a structural schematic view of the docking track in a top view direction.

Fig. 14 is a structural schematic diagram of the cross-section of the docking track and the transition track.

Fig. 15 is a schematic perspective view of the three-dimensional structure of the docking track and the transition track.

Fig. 16 is a structural schematic view of the inner side of a single docking track and transition track in the front direction.

Fig. 17 is a structural schematic view of the looking-up angle of the track-changing trolley.

Instructions for identification in the figure:

1. First connector; 2. Hanging beam; 4. Beam; 5. Transition track; 6. Docking track; 7. Load trolley; 8. Material box; 9. Running track; 10. The first pair of tracks; 11. The second pair of rails; 12, the second connecting piece; 13, electric push rod; 14, trolley for changing rails; 15, body; 16, slider; 17, push rod motor; 18, traveling mechanism; 19, tube chamber; , opening; 21, first side; 22, second side; 23, walking positioning hole; 24, docking rail seat; 25, docking rail connector; 26, inner side; 27, induction body; 28, push rod connection 29, vertical rollers; 30, flat rollers; 31, temporary storage platform; 32, motor; 33, first axle, 34, rollers; 35, belt drive; 36, first belt; 37, sensor; 38, tensioning pulley; 39, synchronous belt device; 40, second belt; 41, driving wheel; 42, second axle; 43, fixing device motor; 44, compactor; 45, telescopic device; 46, rail alignment Positioning sensor; 47, trolley wheel; 48, motor seat of fixing device; 450, connection part; 440, contact plate; 300 guide column; 301, spring body.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

The rail changing device of the three-dimensional storage provided by the present invention comprises: a transition rail for connecting the ends of the running rails together, and a rail changing trolley located on the transition rail and capable of moving back and forth on the transition rail. The track-changing trolley includes a body, on which a traveling mechanism is installed; the traveling mechanism is connected to the driving device, and the traveling mechanism is driven by the driving device to drive the track-changing trolley to move back and forth on the transition track; The running track can be adapted to the docking track; the docking track is arranged on the vehicle body.

Referring to the structural diagrams shown in Figures 1 to 4, the rail changing device of the three-dimensional storage is mainly composed of the transition rail 5 used to connect the ends of the running rail 9 together and the rail changing device located on the transition rail and capable of reciprocating movement on it. Dolly 14 is made up of two parts. Below the track-changing trolley 14, the load trolley 7 is hung, and the load trolley 7 below is grasping and hanging the material box 8.

The track changing trolley 14 comprises a vehicle body 15 on which a traveling mechanism 18 is installed. The traveling mechanism 18 is connected with the driving device, and the traveling mechanism is driven by the driving device to drive the track-changing trolley to move back and forth on the transition track. The track-changing trolley is also provided with a docking track 6 that can be adapted to dock with the running track of the load-carrying trolley; the docking track 6 is arranged on the vehicle body 15 .

The transition track 5 is a traversing track, which is vertically arranged with the running track 9 . Referring to Fig. 14, Fig. 15 and Fig. 16, the transition rail 5 is a groove rail with an inner opening; a single groove rail is in the shape of a strip tube, and a single groove rail includes a lumen 19 for the rollers to roll therein. The single groove rail is provided with an opening 20 along the axial direction of the bar for the insertion of the roller, and the opening is an axial opening of the lumen. The traversing track includes two grooved rails, and their openings are arranged opposite to each other. They form a pair of tracks that can be used by the mobile trolley. The cross-section of a single grooved rail is a square shape including a notch, resembling shape or shape. In other embodiments, the cross-section of the single groove rail is in the shape of a circle, an ellipse, an equilateral polygon, etc. including a gap. The side with the opening on the single grooved rail is the inner side of the grooved rail. The inner side includes the first side 21 above the opening and the second side 22 below the opening. The first side 21 is provided with a trolley. Positioning hole 23. The first side and the second side are used to limit the roller in the lumen to prevent it from slipping out. Dolly walking positioning hole 23 is to be used for monitoring the running situation of dolly, mainly to its location. Referring to Fig. 5 and Fig. 6, a sensor 37 is installed on the track-changing trolley. The sensor 37 is set on the side of the rail-changing trolley, and is set consistent with the roller device. The sensor 37 goes deep into the tube cavity 19, and is positioned by inductive trolley walking. Hole 23 is used to determine the coordinate position of the trolley on the track. The sensor can be a photosensitive infrared sensor. When the trolley passes through the walking positioning hole, the light emitted by the light-emitting device of the sensor passes through the hole, and the receiver of the sensor receives the light signal to complete a position Record. In other embodiments, the sensor can also be other forms of vacancy detection elements, such as various sensors based on the principle of photoelectric gates, mechanical contact proximity sensors, Hall sensors, and the like.

The shape and structure of the docking track 6 are the same as those of the transition track 5 . Both the transition track 5 and the docking track 6 are groove rails with inner openings; the groove rails are tubular, and a single groove rail includes a lumen 19 for the rollers to roll therein. The single groove rail is provided with an opening 20 along the axial direction of the bar for the insertion of the roller, and the opening is an axial opening of the lumen. The groove track comprises two rails, and their openings are arranged opposite to each other. Two opposite single grooved rails are arranged in parallel. The top of the grooved rail is also provided with a crossbeam connection hole, and a column connection hole is provided on the opposite side of the opening side.

The transition track 5 is connected with the ends of at least two running tracks. It is shown in Fig. 3 that 4 pairs of running tracks are arranged side by side, and the transition track 5 is docked with the 4 pairs of running tracks. However, in other embodiments, it is not limited to 4 pairs, it can be 2 or 3 pairs, and 5 to 20 pairs are all good design quantities, and a larger number requires a larger site, so a larger site can be added according to the site. Side by side design. The running track 9 comprises a first pair of tracks 10 and a second pair of tracks 11 . An embodiment of a track change is: when the system is running, the load trolley enters the track change trolley 14 on the transition track from the first pair of tracks 10, and then is moved laterally to the end of the second pair of tracks 11 by the track change trolley, and the track is docked. After being aligned with the running track, the trolley enters the second pair of tracks 11 from the transition track, thereby completing a track changing action. The trolley can be loaded with a material box, and the transfer of the material box can be completed through the above-mentioned change of rails; it can also be loaded without a material box, and the work of transferring the load trolley on different tracks can be completed through the above-mentioned change of rails, so that the load trolley can be transferred on different tracks. The bin operation is carried out on the track.

Referring to Fig. 2, the docking rail 6 is connected with the docking rail seat 24, and the docking rail seat 24 is fixed on the vehicle body 15; wherein the docking rail 6 is movably connected with the docking rail seat 24, and the docking rail is connected with the docking rail driver, and the docking rail driver passes through Drive the docking rail so that the docking rail can move back and forth on the docking rail seat.

The driving mode of the docking track is as follows: see Figure 5 and Figure 12, the two opposite docking tracks are connected by the docking rail connector 25, and the docking rail connector 25 is connected to the electric push rod 13, and the electric push rod 13 is connected to the push rod motor 17 Connection: Fix the push rod connector 28 on the docking rail connector 25, and the push rod connector 28 is connected with the electric push rod 13. The push rod motor 17 drives the electric push rod 13 to do telescopic movement, and the electric push rod 13 then drives the push rod connector to move, the push rod connector drives the docking rail connector to do reciprocating motion, and the docking rail connector drives the docking track to move back and forth.

Referring to Fig. 2 and Fig. 12, there is a trolley wheel 47 in the docking track, and a slide block 16 is arranged on the outside of the docking track, and the slide block 16 is a guide. The docking rail seat 24 includes a chute, and the slider 16 is located in the chute of the docking rail seat. A track positioning sensor 46 is arranged between the docking track and the running track. The alignment sensor 46 is arranged on the track changing trolley 14 , and the induction body 27 is arranged at the end of the running track 9 . The track alignment sensor is used to monitor the track alignment between the track changing trolley and the running track.

The vehicle body is also provided with a fixing device for the trolley. The fixing device is used to fix the trolley. After the trolley enters the docking track, it may shake during the moving process. The fixing device is used to tighten the trolley and the trolley together to reduce the gap between them and reduce the trolley on the trolley. swing. Since there is a material box hoisted under the trolley, during the movement of the trolley, the shaking and swinging of the trolley will cause a large lateral force or shear force on the trolley, which will increase the risk of failure and affect the stability of the platform.

Referring to Fig. 17, the fixing device of the load trolley is arranged on the side of the track-changing trolley space, and the fixing device of the load trolley includes a fixing device motor 43, a compactor 44 and a telescopic device 45, wherein the telescoping device is connected to the fixed device motor and the compactor , The motor of the fixing device adjusts the advance and retreat of the compactor through the retractor. The compactor is preferably a plate, which minimizes or eliminates the gap between the trolley and the track change trolley by squeezing the sides of the trolley. The retractor 45 is preferably a screw rod telescopic structure, and the output shaft of the fixing device motor is connected to the gear or the worm gear on the lead screw through a gear or a worm gear, and then drives the lead screw to rotate. The leaking part of the lead screw is the connection part 450 , and the connection part 450 connects the lead screw and the compactor 44 . In one embodiment, a screw hole is provided in the middle of the compactor, which is threaded to connect the screw rod expander. The compactor includes a contact plate 440 which forms friction with the trolley and a connection part 450 connected with the screw rod. The contact plate protrudes a certain distance from the front end of the connection part, and the end of the screw rod protrudes from the connection part without touching Load trolley to avoid affecting the pressing effect of the contact plate. The fixture motor 43 is installed on the fixture motor seat 48 .

The compactor is a friction plate, magnet or friction resin with an uneven surface, in this case a corrugated surface. When the surface of the trolley is made of iron, the compactor can be a magnet or electromagnet device. The friction resin can be an organic material such as tire rubber, silica gel, or plastic.

Referring to Fig. 5, Fig. 9 ~ Fig. 11, the traveling mechanism includes a roller device placed in the transition track, and the roller device includes a vertical roller 29 and a horizontal roller 30 in the transition track, wherein the vertical roller rolls on the inner bottom of the transition track , the flat roller rolls on the inner wall of the transition track. The vertical rollers are used to make the track-changing trolley roll along the track direction (longitudinal) on the transition track; the flat rollers keep the track-changing trolley wide in the transverse direction, avoiding obvious friction between the vertical rollers and the transition track, increasing their loss and Causes the trolley to vibrate laterally. Horizontal roller 30 is all arranged on both sides of the dolly for changing rails, and it is fixed on the vehicle body, cooperates vertical roller motion. In this example, the flat roller 30 is an elastic wheel, that is, it includes a guide post 300 and a spring body 301, wherein the two ends of the main body of the flat roller are sleeved on the guide post 300, and the middle is a spring body. Under the elastic force, it moves up and down along the guide column. In another embodiment, the main body of the flat roller can be sleeved on the outer end of the guide post, and a spring can be sleeved on the guide post on the guide post at the rear of the main body of the flat roller to form an elastic structure. The elastic flat rollers can play a role of buffering and correcting when the track-changing trolley deviates.

Referring to Fig. 1, a temporary storage platform 31 for placing material boxes is also provided on the track changing device, and the temporary storage platform 31 is arranged below the position when the track changing trolley docks with the running track. The temporary storage table is used for temporary storage of material boxes; or for picking of material boxes; or as a loading or unloading operation platform for material boxes. The temporary storage platform is provided with material box positioning protrusions or groove positions. The positioning protrusion or groove position is used for temporarily storing the material box on the temporary storage platform, so as to facilitate the repositioning of the trolley to accurately grab the material box. The temporary storage table is also installed on the roller or belt assembly line, or on the mobile AGV (the abbreviation of "Automated Guided Vehicle", which means "Automated Guided Vehicle"), etc.

Referring to Figures 9 to 11, the traveling mechanism includes a two-axis roller and a roller driving device. Roller driving device comprises motor 32 and transmission pair, and transmission pair connects roller driving device and wheel shaft, and every wheel shaft two ends is provided with roller 34, and roller driving device drives wheel shaft to rotate by driving pair, and wheel shaft drives roller to rotate.

Transmission pair is belt transmission 35, and belt transmission 35 is connected with two shaft transmissions, and motor 32 drives the belt on the belt transmission 35, and belt drives wheel shaft to rotate, and then drives roller 34 to rotate. A belt pulley is arranged on the wheel shaft, gear teeth are arranged on the belt, and the belt drives the shaft to rotate, and then drives the rollers on the shaft to rotate.

In this embodiment, the motor 32 is connected to the driving wheel 41, the driving wheel is a synchronous belt device 39, on which the first belt 36 and the second belt 40 are simultaneously arranged, and when the driving wheel rotates, the first belt and the second belt will be driven synchronized movement. The other end of the first belt is connected to the second axle 42 , and the other end of the second belt is connected to the first axle 33 . The two ends of the axle are provided with rollers. When the wheel is driven by the belt, the rollers at both ends of the axle rotate accordingly. A tension pulley 38 is also provided on the first belt, and a tension pulley is also provided on the second belt.

Referring to Figures 1 to 4, the transition track 5 is installed under the suspension beam 2 through the first connector 1, the suspension beam 2 is installed on the beam 4 through the second connector 12, and the beam 4 is located outside the transition track, and the beam 4 is installed on the uprights. Columns are used to support beams, running tracks and rail changing devices.

The operating process of the present invention is briefly described as follows:

After the trolley enters the docking track 6 from the running track 9, the alignment sensor 46 transmits the induction information to the power adjustment mechanism of the transition track, that is, the push rod motor drives the electric push rod 13 to push the docking rail according to the information of the alignment sensor 46 The connecting piece 25 is used to adjust the position of the docking rail 6 on the docking rail seat. After the adjustment is completed, the motor of the fixing device pushes the compactor to fasten the loading trolley on the track changing trolley. The motor 32 drives the synchronous belt device, that is, the first belt, the second belt and their accessories drive the rollers to rotate, so that the track-changing trolley walks on the transition track 5 . After the track-changing trolley walks to the corresponding running track, it stops; then the fixing device motor releases the loading trolley, and the push rod motor pushes the docking track to connect to the new running track, and then the loading trolley moves into the new running track. In the action of unloading, the docking track 6 is adjusted in position on the docking rail seat. After the adjustment is completed, the loading trolley can put the material box on the temporary storage platform to complete the unloading action; the track changing trolley can also drag the loading trolley to other temporary storage platforms to put down the material box. Putting down the material box can be unloading, loading, or sorting.

The above descriptions 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 of the present invention. within range.

Claims (10)

1. A rail-changing device for three-dimensional storage, characterized in that it comprises: a transition rail for connecting the ends of the running rails together and a rail-changing trolley that is positioned on the transition rail and can move back and forth thereon; The track-changing trolley includes a vehicle body, on which a traveling mechanism is installed; the traveling mechanism is connected to a driving device, and the traveling mechanism is driven by the driving device to drive the rail-changing trolley to move back and forth on the transition track; The track-changing trolley is also provided with a docking track that can be adapted to be docked with the running track of the load trolley; the docking track is arranged on the vehicle body. 2. The track changing device for three-dimensional storage according to claim 1, characterized in that: the transition track is a traversing track, which is arranged perpendicular to the running track. 3. The rail changing device for three-dimensional storage according to claim 1, characterized in that: the docking track is connected to the docking rail seat, and the docking rail seat is fixed on the vehicle body; wherein the docking track is movably connected to the docking rail seat, The docking rail is connected with the docking rail driver, and the docking rail driver drives the docking rail so that the docking rail can move back and forth on the docking rail seat. 4. The rail changing device for three-dimensional storage according to claim 3, wherein a slider is provided on the outside of the docking rail, the docking rail seat includes a chute, and the slider is located in the chute of the docking rail seat. 5. The track changing device for three-dimensional storage according to claim 3, characterized in that: a track positioning sensor is provided between the docking track and the running track. 6. The track changing device for three-dimensional storage according to claim 1, characterized in that: the traveling mechanism includes a roller device placed in the transition track, and the roller device includes vertical rollers and horizontal rollers in the transition track, wherein The vertical rollers roll on the inner bottom of the transition track, and the flat rollers roll on the inner sidewall of the transition track. 7. The track changing device for three-dimensional storage according to claim 1, characterized in that: the traveling mechanism includes two-axis rollers and a roller driving device; the roller driving device includes a motor and a transmission pair, and the transmission pair is connected to the roller driving device and the wheel shaft , the two ends of each wheel shaft are provided with rollers, the roller driving device drives the wheel shaft to rotate through the transmission pair, and the wheel shaft drives the roller to rotate. 8. The track changing device for three-dimensional storage according to claim 7, characterized in that: the transmission pair is a belt transmission device, the belt transmission device is connected to the two-axis transmission, and the motor drives the belt on the belt transmission device , the belt drives the two shafts to rotate, and then drives the rollers to rotate. 9. The rail changing device for three-dimensional storage according to claim 1, characterized in that: the transition track is installed under the hanging beam, the hanging beam is installed on the cross beam, and the cross beam is located outside the transition track, and the cross beam is installed on the column . 10. The rail changing device for three-dimensional storage according to claim 3, characterized in that: two opposite docking rails are connected by a docking rail connector, and the docking rail connector is connected to an electric push rod in transmission, and the electric push rod and The push rod motor is connected; the push rod motor drives the electric push rod to do telescopic movement, and the electric push rod then drives the docking rail connector to do reciprocating motion.