A wheat-wheel structure, a four-way vehicle using the wheat-wheel, and a conveying system

Abstract

This invention relates to the field of logistics equipment technology, specifically to a wheel structure, a four-way vehicle using the wheel, and a conveying system. The wheel structure includes a wheel core and two wheel discs on both sides. Multiple sets of rollers, spaced apart and arranged at a 45° angle, are arranged between the two wheel discs. Each set of rollers consists of two conical wheels with different axles. A mounting plate is provided on the wheel core, and two mounting holes of the same height are provided on the mounting plate. A bolt passing through the conical wheel connects one end to the mounting hole and the other end to the wheel disc. The traditional single-row wheel is replaced with a double-row wheel. Unlike traditional spliced ​​double-row wheels, due to the use of a single-row wheel structure, the volume is not significantly increased compared to a typical single-row wheel. However, the contact points with the track change from one or two points in a traditional single-row wheel to two or three points, theoretically increasing the load-bearing capacity by nearly double.

Description

Technical Field

[0001] This invention relates to the field of logistics equipment technology, specifically to a wheat-wheel structure, a four-way vehicle using the wheat-wheel, and a conveying system. Background Technology

[0002] Four-way vehicles are intelligent logistics equipment that can operate across aisles in automated warehouses. Their design, with backup systems between devices, significantly improves warehouse space utilization. Traditional four-way vehicles use wheels of different heights, both horizontally and vertically, requiring a double-layered track design, which increases costs. To address this, some companies use wheeled systems to drive the four-way vehicles. Existing wheeled system structures include... Figure 1 As shown, the load-bearing capacity of the above-mentioned wheat wheels is generally limited. If it is necessary to transport heavier goods, the common practice is to splice two wheat wheels together to form a double-row wheat wheel structure, using the two wheat wheels to share the load. This results in a larger space being occupied in the width direction, making the four-way vehicle larger. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a wheat-wheel structure that effectively increases load-bearing capacity; simultaneously, this invention also provides a four-way vehicle and conveying system using this wheat-wheel.

[0004] The present invention provides the following technical solution: a wheel structure, comprising a wheel core and two wheel discs on both sides, characterized in that multiple sets of rollers are arranged at intervals and at an angle of 45° between the two wheel discs, and each set of rollers is composed of two conical wheels with different axes.

[0005] A further feature is that a mounting plate is provided on the wheel core, and two mounting holes of the same height are provided on the mounting plate. One end of a bolt passing through the conical wheel is connected to the mounting hole, and the other end is connected to the wheel disc.

[0006] The inner side of the wheel is provided with a tapered wheel clearance groove, and the outer side of the wheel is provided with a bolt head fixing groove.

[0007] A four-way vehicle using the aforementioned wheel, comprising a vehicle body, characterized in that the wheel is respectively installed at the four corners of the bottom of the vehicle body, and each wheel is connected to an independent drive motor.

[0008] The vehicle body has a control area and a battery area in the middle. The battery area contains a battery. The side of the vehicle body has a battery mounting port corresponding to the battery area. The battery area has guide strips on both sides, support rollers at the bottom, a protruding strip at the top, a power connector and a locking cylinder at the inner end. The piston rod of the locking cylinder has a pin. The battery has a power connector that mates with the power connector and an opening plate that mates with the pin.

[0009] The support rollers are mounted on at least two side-by-side support bars, and both the support bars and the guide bars are fixed to the four-way underbody of the vehicle body;

[0010] The power connector is mounted on the floating block, which is connected to the power socket via a spring link. A handle is provided on the outside of the battery.

[0011] The vehicle body has lifting drive motors installed in the middle of both sides. The lifting drive motors are connected to the lifting mechanism through a bidirectional transmission mechanism. The lifting rod of the lifting mechanism is connected to the lifting plate.

[0012] A conveying system includes the four-way vehicle and a track, characterized in that the track includes a longitudinal track and a transverse track of the same height, guide wheels are provided at the four corners of the four-way vehicle, and guide plates that cooperate with the guide wheels are provided on the sides of the longitudinal track and the transverse track.

[0013] By adopting this invention, the traditional single-row wheat wheel is changed to a double-row wheat wheel. Unlike the traditional spliced ​​double-row wheat wheel, the volume of the single-row wheat wheel is not much increased compared to the general single-row wheat wheel due to the single-row wheat wheel structure. However, the contact points with the track are changed from one or two points in the traditional single-row wheat wheel to two or three points, which can increase the load-bearing capacity by nearly 100%. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an existing wheat straw structure;

[0015] Figure 2 Here is a force analysis diagram of an existing wheat straw;

[0016] Figure 3 This is a schematic diagram of the wheat straw structure of the present invention;

[0017] Figure 4 This is a schematic diagram showing the connection between the bolts and the mounting plate.

[0018] Figure 5 This is a schematic diagram of the wheel core structure;

[0019] Figure 6 This is a schematic diagram of the contact point between the wheat wheel and the track in this invention;

[0020] Figure 7 This is a force analysis diagram of the wheat straw of the present invention;

[0021] Figure 8 This is a schematic diagram of a four-way vehicle structure;

[0022] Figure 9 This is a schematic diagram of the internal structure of a four-way vehicle;

[0023] Figure 10 This is a schematic diagram of the battery area structure;

[0024] Figure 11 This is a schematic diagram of the power connector structure;

[0025] Figure 12 This is a schematic diagram of the battery structure;

[0026] Figure 13 This is a schematic diagram of the top of the vehicle body;

[0027] Figure 14 This is a schematic diagram of the four-way vehicle and its interaction with the track.

[0028] Reference numerals: 1. Vehicle body; 2. Wheel; 3. Drive motor; 4. Control area 4; 5. Battery area; 6. Battery mounting port; 7. Four-way floor; 8. Two-way transmission mechanism; 9. Lifting mechanism; 10. Lifting platform; 11. Guide wheel; 12. Lifting drive motor; 13. Track; 14. Pallet;

[0029] 2-1. Wheel core; 2-2. Wheel disc; 2-3. Conical wheel; 2-4. Mounting plate; 2-5. Mounting hole; 2-6. Bolt; 2-7. Conical wheel clearance groove; 2-8. Bolt head fixing groove; 2-9. Mounting base plate;

[0030] 5-1. Battery; 5-2. Power socket; 5-3. Perforated plate; 5-4. Guide bar; 5-5. Support roller; 5-6. Power connector; 5-7. Locking cylinder; 5-8. Support bar; 5-9. Handle; 5-10. Pin; 5-11. Floating block; 5-12. Power socket; 5-13. Connecting rod; 5-14. Spring; 5-15. Raised bar. Detailed Implementation

[0031] See Figures 3 to 5 As shown, a wheel structure includes a wheel core 2-1 and two wheel discs 2-2 on both sides. Multiple sets of rollers, spaced apart and arranged at a 45° angle, are arranged between the two wheel discs 2-2. Each set of rollers consists of two conical wheels 2-3 with different axles. The wheel core 2-1 is a polyhedral structure, with mounting grooves on each face. A mounting base plate 2-9 is inserted into the mounting groove and fixed with bolts. A mounting plate 2-4 at a 45° angle is provided on the mounting base plate 2-9. Two mounting holes 2-5 of the same height are provided on the mounting plate 2-4. One end of a bolt 2-6 passing through the conical wheel 2-3 is connected to the mounting hole 2-5, and the other end is connected to the wheel disc 2-2. One end of the bolt 2-6 is threaded into the mounting hole 2-5, and the other end's bolt head is tightened into a bolt head fixing groove 2-8 on the outer side of the wheel disc 2-2. A conical wheel clearance groove 2-7 is provided on the inner side of the wheel disc 2-2.

[0032] The following is a comparative analysis of the differences between the traditional single-row wheat wheel and the wheat wheel of this invention. In order to clearly show the force situation, the part that was originally in contact with the track is rotated 180° upwards.

[0033] Traditional wheat harvester wheels have two states during use: a single-wheel support state and a two-wheel transition state. They have one contact point with the track and two contact points with it, respectively. (See...) Figure 2 As shown, in the transition state, the two adjacent rollers are subjected to force.

[0034] When in use, the wheat-growing wheel of this invention has a two-wheel support state and a three-wheel transition state, with two contact points with the track and three contact points, respectively. (See...) Figure 6 As shown, in the three-stage transition state, there are a total of three contact points, and the force analysis is as follows: Figure 7 As shown.

[0035] according to Figure 2 and Figure 7 It can be seen that, under the same load and transition conditions, the maximum deformation of the two rollers of the traditional wheat wheel reaches 0.28mm, while the maximum deformation of the three rollers of the wheat wheel of the present invention is only 0.143mm. It is evident that the wheat wheel of the present invention has a better load-bearing capacity, which is due to the improvement of the rollers, which increases the contact points with the track and can better distribute the pressure.

[0036] During installation, first pass the bolt 2-6 through the tapered wheel and place it inside the wheel disc 2-2. Align the threaded end of the bolt 2-6 with the mounting hole 2-5, tighten it, and then let the head of the bolt 2-6 snap into the head fixing groove 2-8 to complete the installation. During disassembly, simply unscrew the head of the bolt 2-6 from the mounting hole 2-5.

[0037] See Figures 8-13 As shown, a four-way vehicle includes a vehicle body 1, with wheel 2 installed at the four corners of the bottom of the vehicle body 1, and each wheel 2 is connected to an independent drive motor 3.

[0038] The vehicle body 1 has a control area 4 and a battery area 5 in the middle. The battery 5-1 in the battery area 5 supplies power to the entire vehicle. The side of the vehicle body has a battery mounting port 6 corresponding to the battery area 5. The battery area 5 has guide strips 5-4 on both sides, support rollers 5-5 at the bottom, and a power connector 5-6 and a locking cylinder 5-7 at the inner end. The support rollers 5-5 are mounted on three side-by-side support strips 5-8. The support strips 5-8 and guide strips 5-4 are fixed to the four-way floor plate 7 of the vehicle body 1. The power connector 5-6 and the locking cylinder 5-7 are also fixed to the four-way floor plate 7. The piston rod of the locking cylinder 5-7 is equipped with a pin 5-10. The battery 5-1 has a power connector 5-2 that mates with the power connector 5-6 and a power socket 5-10 that mates with the pin 5-10. The perforated plate 5-3 and the power connector 5-6 are installed on the floating block 5-11. The floating block 5-11 is connected to the power socket 5-12 through a spring connecting rod. The spring connecting rod includes four connecting rods 5-13. One end of the connecting rod 5-13 is fixedly connected to the floating block 5-11, and the other end of the connecting rod 5-13 is slidably connected to the power socket 5-12. The spring 5-14 is fitted on the connecting rod 5-13. The battery 5-1 enters the battery installation port 6. After the power plug interface 5-2 is aligned with the power connector 5-6 and inserted, the power connector 5-6 is pushed to compress and deform the spring 5-14, which plays a buffering and limiting role in the installation of the battery 5-1. After the battery 5-1 is inserted into place, the locking cylinder 5-7 drives the pin 5-10 to extend and insert into the opening of the perforated plate 5-3, thus locking the battery 5-1.

[0039] When it is necessary to replace battery 5-1, the locking cylinder 5-7 drives the pin 5-10 to retract and exit from the opening in the perforated plate 5-3. Battery 5-1 is reset by spring 5-14 and will pop out a little distance. The battery can be pulled out from the battery installation port 6 by a robot or manually, and then a new battery can be inserted.

[0040] The top of the battery mounting port 6 is provided with a protruding strip 5-15 to limit the battery 5-1 from above. The two sides of the battery 5-1 are limited by guide strips 5-4, and the bottom is supported by support rollers 5-5. A handle 5-9 is provided on the outside of the battery 5-1 for easy operation. Both ends of the guide strip 5-4 are provided with outward bevels, which makes it easier to insert the battery 5-1 and reduces assembly requirements.

[0041] Lifting drive motors 12 are installed in the middle of both sides of the vehicle body 1. The lifting drive motors 12 are connected to the lifting mechanism 9 through the bidirectional transmission mechanism 8. This is a mature existing technology. Existing four-way vehicles use the same structure. The lifting rod of the lifting mechanism 9 is connected to the lifting plate 10. The two lifting plates 10 can lift and lower the cargo.

[0042] See Figure 13 and Figure 14As shown, a conveying system includes a four-way vehicle and a track 13. The track 13 includes longitudinal and transverse tracks of the same height. Guide wheels 11 are provided at each of the four corners of the four-way vehicle. Guide plates that cooperate with the guide wheels 11 are provided on the sides of the longitudinal and transverse tracks. By controlling the track 13 with four motors inside the four-way vehicle, the transverse and longitudinal movement of the four-way vehicle can be easily realized. At this time, a pallet 14 is loaded on the four-way vehicle.

[0043] Furthermore, each of the four motors is controlled independently. Even if one of the motors fails, the remaining motors can still be used to move the four-way vehicle without causing blockage in the conveyor channel.

Claims

1. A four-way vehicle comprising a vehicle body, characterized by, The bottom four corners of the vehicle body are respectively provided with a Mecanum wheel, each of which is connected with an independent driving motor, the Mecanum wheel comprises a wheel core and two side wheels, a plurality of groups of rollers are arranged between the two side wheels at an interval and at an angle of 45°, each group of rollers is composed of two conical wheels with different shafts; the wheel core is provided with a mounting plate, two mounting holes with the same height are formed in the mounting plate, one end of a bolt penetrating through the conical wheel is connected with the mounting hole, and the other end is connected with the side wheel; a conical wheel accommodating groove is formed in the inner side of the side wheel, and a bolt head fixing groove is formed in the outer side of the side wheel.

2. The four-wheel vehicle according to claim 1, characterized by The middle of the vehicle body is provided with a control area and a battery area, the battery area is provided with a battery, the side of the vehicle body is provided with a battery mounting port corresponding to the battery area, the two sides of the battery area are respectively provided with a guide strip, the bottom is provided with a supporting roller, the top is provided with a protruding strip, the inner side end is provided with a power connector and a locking cylinder, the piston rod of the locking cylinder is provided with a latch, the battery is provided with a power plug interface matched with the power connector, and the battery is further provided with an opening plate matched with the latch.

3. The four-wheel vehicle according to claim 2, characterized by The supporting roller is mounted on at least two supporting strips arranged side by side, and the supporting strips and the guide strips are fixed on the four-way vehicle bottom plate of the vehicle body.

4. The four-wheel vehicle according to claim 2, characterized by The power connector is mounted on a floating block, the floating block is connected with a power supply seat through a spring connecting rod, and the outer side of the battery is provided with a handle.

5. The four-wheel vehicle according to claim 2, characterized by The middle of the two sides of the vehicle body is provided with a lifting driving motor, the lifting driving motor is connected with a lifting mechanism through a bidirectional transmission mechanism, and the lifting rod of the lifting mechanism is connected with a lifting plate.

6. A delivery system comprising the four-way vehicle of claim 1, characterized in that, Further comprising a track, the track comprises longitudinal tracks and transverse tracks with the same height, each corner of the four-way vehicle is provided with a guide wheel, and the side surfaces of the longitudinal tracks and the transverse tracks are provided with guide plates matched with the guide wheels.

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