Synchronous walking driving assembly of four-way shuttle vehicle

Abstract

A four-direction shuttle vehicle synchronous walking driving assembly comprises a vehicle frame, a walking unit and a driving unit, the walking unit and the driving unit are installed on the vehicle frame, and the walking unit comprises X-axis driving walking wheels which walk in the X-axis walking direction and are installed on the front side and the rear side of the vehicle frame respectively; y-axis driving walking wheels are mounted on the left side and the right side of the vehicle frame; a driving unit is mounted on the side of one X-axis driving walking wheel; the driving unit is connected with a synchronous transmission box, and a reversing bevel gear pair is mounted in the synchronous transmission box; the reversing bevel gear pair is connected with an X-axis walking gear pair, and the X-axis walking gear pair is connected with an X-axis driving walking wheel; the synchronous straight gear pair drives the Y-axis driving walking wheel to rotate synchronously and is connected with a Y-axis walking gear pair through a Y-axis driving walking wheel driving shaft, and the Y-axis walking gear pair is connected with the Y-axis driving walking wheel. Through ingenious design and high-quality assemblies, efficient, stable and accurate walking driving is achieved, and powerful guarantee is provided for application of the shuttle vehicle in the fields of logistics and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to four -way shuttle car technical field especially relates to a four -way shuttle car synchronous walking drive assembly. BACKGROUND

[0002] In the modern logistics warehousing system, four -way shuttle car as a kind of efficient, flexible automated handling equipment, is widely used in the rapid sorting and handling operation of goods. Four -way shuttle car can move freely along X axis and Y axis direction in the grid layout of warehouse, greatly improves the space utilization and operation efficiency of warehouse. Among them, the synchronous walking drive assembly of four -way shuttle car is one of its core components, is directly related to the running stability and operation efficiency of shuttle car.

[0003] At present, the synchronous walking drive assembly of existing four -way shuttle car adopts chain or synchronous belt transmission mode to realize the power transmission of XY direction. Specifically, this kind of scheme usually relies on driving motor to drive gear box, and then power is transmitted to the transmission sprocket of XY direction through chain or synchronous belt. The sprocket drives each gear box through the shaft connected to it, and finally drives the wheel set to realize the walking function of shuttle car. (For example, the prior art discloses a four -way walking trolley, and the publication number is CN111591659A)

[0004] However, this kind of transmission mode based on chain or synchronous belt exposes a series of defects in actual application, which seriously affects the performance and reliability of four -way shuttle car:

[0005] Chain power transmission performance is unstable: in the process of power transmission, due to the gap between chain links, the change of chain tension and chain wear and other factors, it is easy to cause the instability of power transmission, and then affect the starting rate and running stability of shuttle car. This instability is particularly obvious in high-speed operation or frequent start-stop, which limits the further improvement of shuttle car performance.

[0006] High precision requirement of parts processing: chain and sprocket and other transmission components have high precision requirement, and the size control is difficult. Once the machining precision is not up to standard, it is easy to cause the problems such as jamming, tooth skipping in the transmission process, which not only affects the transmission efficiency, but also increases the failure rate of equipment. At the same time, the high precision machining requirement also leads to the rise of manufacturing cost.

[0007] Complex process, long assembly period: due to the accurate alignment and adjustment of chain and sprocket and other components, the whole assembly process is complex and time -consuming. In addition, in order to ensure the stability and reliability of transmission system, a lot of debugging and detection work is needed, which further prolongs the assembly period and reduces the production efficiency.

[0008] In view of the various defects existing in the prior art, the utility model aims at providing a four-way shuttle vehicle synchronous walking driving assembly which realizes transmission through gear pairs. Utility model content

[0009] In view of the problems existing in the prior art, the utility model provides a four-way shuttle vehicle synchronous walking driving assembly. The scheme can effectively solve the problems of unstable power transmission, high machining precision requirement and complex assembly caused by the chain or synchronous belt transmission mode through realizing transmission through gear pairs, thereby improving the operation stability and operation efficiency of the four-way shuttle vehicle, and reducing the manufacturing cost and maintenance cost.

[0010] The utility model is such a realization, a four-way shuttle vehicle synchronous walking driving assembly, its characterized in that: car frame, install walking unit on car frame and the drive unit of connecting walking unit, X axis driving walking wheel along X axis walking direction walking is installed on the car frame's both sides respectively;Y axis driving walking wheel along Y axis direction walking is installed on the car frame's left and right sides respectively;Its characterized in be: drive unit is installed in one X axis driving walking wheel side;The drive unit includes a drive motor, the drive motor connects the speed reducer, the speed reducer connects synchronous transmission box, synchronous transmission box installs the reversing bevel gear pair that drives both sides X axis driving walking wheel synchronous rotation in;Reversing bevel gear pair connects X axis walking gear pair, X axis walking gear pair connects X axis driving walking wheel.

[0011] Synchronous spur gear pair that drives Y axis driving walking wheel synchronous rotation, synchronous spur gear pair connects through Y axis driving walking wheel drive shaft and connects Y axis walking gear pair, Y axis walking gear pair connects Y axis driving walking wheel.

[0012] Preferably, the reversing bevel gear pair includes an input bevel gear mounted on the output shaft of the speed reducer, the input bevel gear engages a driven bevel gear, the driven bevel gear is mounted on the X axis walking gear box through a bevel gear shaft, and the X axis walking gear pair is mounted in the X axis walking gear box.

[0013] Preferably, the first gear of the X axis walking gear pair is coaxially arranged with the driven bevel gear, the last gear of the X axis walking gear pair is connected with the X axis driving walking wheel, the synchronization gear of the X axis walking gear pair is connected with the X axis walking gear pair in the X walking gear box on the other side through the X axis walking synchronization transmission shaft, and the last gear of the X walking gear pair is connected with the X axis driving walking wheel.

[0014] Preferably, the X axis walking synchronization transmission shaft adopts a split structure, and the two split X axis walking synchronization transmission shafts are connected through a telescopic cross coupling.

[0015] Preferably, the X axis walking gear pair on one side is connected with two X axis driving walking wheels.

[0016] Preferably, the last-stage gear of the synchronous spur gear pair is mounted on the Y-axis driving walking wheel shaft, and the two ends of the Y-axis driving walking wheel shaft are connected with Y-axis walking driving boxes through telescopic cross couplings respectively, Y-axis walking gear pairs are mounted in the Y-axis walking driving boxes, and the last-stage gears of the Y-axis walking gear pairs are connected with Y-axis driving walking wheels.

[0017] Preferably, the Y-axis walking gear pairs on one side are connected with two Y-axis driving walking wheels.

[0018] The four-way shuttle vehicle synchronous walking driving assembly has the advantages and technical effects that: through ingenious design, efficient, stable and accurate walking driving is realized.

[0019] The driving unit serves as a power source and a control core, and through components such as a speed reducer and a synchronous transmission box, power is efficiently and synchronously transmitted to the driving walking wheels of the X-axis and the Y-axis.

[0020] In addition, the application of telescopic universal couplings and telescopic cross couplings further improves the adaptability and flexibility of the system.

[0021] The X-axis and Y-axis walking gear pairs on one side are connected with two walking driving wheels respectively, so that uniform distribution of power is realized, and the stability and reliability of walking are improved.

[0022] In summary, the four-way shuttle vehicle synchronous walking driving assembly realizes efficient, stable and accurate walking driving through ingenious design and high-quality components, and provides strong support for the application of the shuttle vehicle in the field of logistics and the like. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the utility model;

[0024] Figure 2The utility model gear drive chain structure schematic view is this utility model;

[0025] Figure 3 The utility model discloses a three-dimensional structure schematic view. Figure 2

[0026] In the drawing, 1 is a car frame, 2 is an X-axis driving walking wheel, 3 is a Y-axis driving walking wheel, 4 is a driving unit, 4-1 is a driving motor, 4-2 is a speed reducer, 4-3 is a synchronous transmission box, 4-30 is a reversing bevel gear pair, 4-301 is an input bevel gear, 4-302 is a driven bevel gear, 4-31 is a synchronous spur gear pair, 4-310 is a final stage gear, 4-4 is an X-axis walking gear pair, 4-40 is an X-axis walking gear box, 4-41 is a first stage gear, 4-42 is a synchronous gear, 4-5 is a Y-axis driving walking wheel driving shaft, 4-6 is a Y-axis walking gear pair, 4-7 is an X-axis walking synchronous transmission shaft, 4-8 is a telescopic cross coupler, and 4-9 is a Y-axis walking driving box. DETAILED DESCRIPTION

[0027] In order to make the utility model's purpose, technical scheme and advantage more clearly clear, following combining embodiment, this utility model carries out further detailed explanation. It is understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0028] Please refer to Figures 1 to 3 ​The utility model provides a kind of four-way shuttle car synchronous walking drive assembly, car frame 1, car frame as the structural basis of entire four-way shuttle car, carries walking unit and drive unit, ensure the stability and strength of entire system.It provides the platform of installation and support for each component, is the basic structure of realizing four-way walking;Walking unit and the drive unit connected with walking unit are installed on car frame, walking unit includes X axis active walking wheel 2 that is respectively installed along X axis walking direction walking on the front and back sides of car frame;Y axis active walking wheel 3 is respectively installed along Y axis direction walking on the left and right sides of car frame;By installing X axis active walking wheel on the front and back sides of car frame and installing Y axis active walking wheel on the left and right sides, realize the moving ability of shuttle car in X axis (front and back) and Y axis (left and right) two directions.This layout makes shuttle car can move freely on two-dimensional plane, realizes the function of four-way walking;Drive unit 4 is installed on one side of X axis active walking wheel;The drive unit includes a drive motor 4-1, the drive motor is connected with speed reducer 4-2, the speed reducer is connected with synchronous transmission box 4-3, and drive unit is the power source and control core of entire walking system.The drive motor provides power, and power is transmitted to synchronous transmission box by speed reducer after deceleration and torque increase.Synchronous transmission box inside commutating bevel gear pair and synchronous spur gear pair ensure that power can be transmitted to X axis and Y axis active walking wheel synchronously and efficiently, realize that one-step walking drive motor can realize synchronous walking;Compared with traditional belt drive, this gear transmission mode has higher transmission efficiency, better synchronism, lower maintenance cost and more compact structure.Therefore, the four-way shuttle car synchronous walking drive assembly has significant advantages in improving the walking efficiency, stability and precision of shuttle car.Synchronous transmission box 4-3 is installed with commutating bevel gear pair 4-30 for driving both sides X axis active walking wheel synchronous rotation, and commutating bevel gear pair is connected with X axis walking gear pair 4-4, and X axis walking gear pair is connected with X axis active walking wheel 2;Commutating bevel gear pair realizes the effective transmission of power from speed reducer output shaft to X axis walking gear box by the meshing of input bevel gear and driven bevel gear.This design makes drive motor can be arranged in more reasonable position, optimizes the layout and weight distribution of whole vehicle;

[0029] Synchronous spur gear pair 4-31 for driving Y axis active walking wheel synchronous rotation, and synchronous spur gear pair is connected with Y axis walking gear pair 4-6 through Y axis active walking wheel drive shaft 4-5, and Y axis walking gear pair is connected with Y axis active walking wheel 3;Synchronous spur gear pair is used for driving Y axis active walking wheel synchronous rotation, ensure the synchronism and consistency of both sides Y axis active walking wheel in walking process.This helps to improve the walking stability and precision of shuttle car in Y axis direction.

[0030] Preferably, the reversing bevel gear pair includes an input bevel gear 4-301 mounted on the reducer output shaft, which engages a driven bevel gear 4-302 mounted on the X-axis walking gear box 4-40 through a bevel gear shaft, and an X-axis walking gear pair is installed inside the X-axis walking gear box.

[0031] When the driving motor starts, power is transmitted to the synchronous transmission box through the reducer. In the synchronous transmission box, the reversing bevel gear pair distributes power to the X-axis walking gear pair on both sides, drives the X-axis driving walking wheel to rotate, and realizes walking in the X-axis direction. At this time, the Y-axis driving walking wheel leaves the walking surface through the control of the four-way shuttle car lifting assembly. When walking along the Y-axis is needed, the X-axis driving walking wheel leaves the walking surface under the control of the four-way shuttle car lifting assembly, the synchronous spur gear pair transmits power to the Y-axis walking gear pair, drives the Y-axis driving walking wheel to rotate, and realizes walking in the Y-axis direction.

[0032] Preferably, the first-stage gear 4-41 of the X-axis walking gear pair 4-4 is coaxially arranged with the driven bevel gear 4-302, the last-stage gear of the X-axis walking gear pair is connected with the X-axis driving walking wheel 2, and the synchronous gear 4-42 of the X-axis walking gear pair is connected with the X-axis walking gear pair inside the X-axis walking gear box on the other side through the X-axis walking synchronous transmission shaft 4-7. The last-stage gear of the X-axis walking gear pair is connected with the X-axis driving walking wheel.

[0033] The technical principle of this technical feature is:

[0034] Coaxial arrangement: The first-stage gear of the X-axis walking gear pair is coaxially arranged with the driven bevel gear, which means they share the same shaft and rotate together. This design ensures that the power received by the driven bevel gear can be directly and losslessly transmitted to the first-stage gear of the X-axis walking gear pair.

[0035] Gear transmission chain: The X-axis walking gear pair is composed of multiple gears, forming a transmission chain. After the first-stage gear receives power, it is transmitted step by-step through subsequent gears, and finally the last-stage gear drives the X-axis driving walking wheel to rotate.

[0036] Synchronous transmission: The synchronous gear of the X-axis walking gear pair is connected with the X-axis walking gear pair inside the X-axis walking gear box on the other side through the X-axis walking synchronous transmission shaft. This design ensures the synchronous rotation of the X-axis walking gear pairs on both sides, and further ensures the synchronous walking of the X-axis driving walking wheels on both sides.

[0037] The technical effect of this technical feature is:

[0038] High transmission efficiency: Gear transmission has higher transmission efficiency than chain transmission. The meshing of gears is more compact, and the loss in the power transmission process is smaller, so it can more efficiently utilize the power of the driving motor.

[0039] Good synchronization: Through the design of synchronous gears and synchronous transmission shafts, the synchronous rotation of the X-axis walking gear pairs on both sides is ensured. This improves the walking stability and precision of the shuttle vehicle in the X-axis direction, avoiding deviation or jolting caused by different rotation speeds of the two walking wheels.

[0040] Low maintenance cost: The gear transmission system is more durable and has lower maintenance cost compared to the chain transmission system. The wear of gears is relatively slow, and it is easier to lubricate and maintain, thereby prolonging the service life of the system.

[0041] Compact structure: The gear transmission system has a compact structure and occupies less space. This helps to optimize the overall layout of the shuttle vehicle and improve space utilization.

[0042] In summary, this technical feature realizes the synchronous rotation and efficient power transmission of the X-axis walking gear pairs through gear transmission. Compared with the existing chain transmission, it has higher transmission efficiency, better synchronization, lower maintenance cost and more compact structure.

[0043] Preferably, the X-axis walking synchronous transmission shaft 4-7 adopts a split structure, and the two split X-axis walking synchronous transmission shafts are connected through a telescopic cross coupling 4-8. The technical effects of using a telescopic universal coupling in the X-axis walking synchronous transmission system of the four-way shuttle vehicle are as follows:

[0044] 1. Reduce the influence of machining errors: In mechanical manufacturing, machining errors are inevitable. Traditional chain transmission or rigid couplings have higher requirements for machining precision, as any small error can cause unstable transmission or increased noise. The telescopic universal coupling has certain elasticity and adjustability, which can absorb and compensate for these machining errors, ensuring the stability and accuracy of transmission. This reduces the requirements for the machining precision of parts, improves production efficiency and reduces manufacturing cost.

[0045] 2. Solve the problem of unstable transmission caused by the existence of bearing reasonable play: Bearings need to maintain a certain play during operation to ensure lubrication and reduce friction. However, the existence of play can also cause the transmission shaft to produce small displacement or wobble when subjected to load, thereby affecting the stability of transmission. The telescopic universal coupling can effectively absorb these displacements and wobbles through its internal elastic elements and adjustable mechanism, maintaining the stability and reliability of transmission. This improves the stability and comfort of the shuttle vehicle during driving.

[0046] 3. Adaptability to complex installation and layout requirements: The walking system of the four-way shuttle vehicle needs to adapt to different installation and layout requirements, especially in limited space. The telescopic universal coupling can flexibly adapt to different installation distances and angular deviations due to its telescopic and universal transmission characteristics, simplifying the installation process and reducing installation errors. This makes the walking system of the shuttle vehicle more flexible and configurable, meeting the needs of different application scenarios.

[0047] 4. Improve the reliability and durability of transmission: The telescopic universal coupling adopts high-quality materials and advanced manufacturing processes, with high load capacity and fatigue resistance. It can withstand large loads and impacts, maintaining the stability and reliability of the transmission. At the same time, due to the optimization of its internal structure and the perfection of the lubrication system, it reduces wear and failure, improves the durability and service life of the transmission.

[0048] 5. Compression of Z-axis layout space: The use of split X-axis walking synchronous transmission shaft and telescopic universal coupling makes the transmission system in the Z-axis direction effectively compressed. This helps to optimize the overall structural layout of the shuttle vehicle, improve space utilization, and make the shuttle vehicle more compact and flexible. This has important practical significance for four-way shuttle vehicles that need to carry out efficient logistics operations in limited space.

[0049] 6. Multifunctionality of X-axis walking gearbox: In addition to loading the drive gear, the X-axis walking gearbox in the X direction also becomes part of the vehicle frame. This design not only improves the structural strength and stability of the gearbox, but also reduces the use of additional vehicle frame components, simplifying the overall structure of the vehicle. At the same time, the X-axis walking gearboxes on both sides of the X direction use universal coupling transmission connection scheme, further improving the flexibility and reliability of the transmission.

[0050] In summary, the use of telescopic universal coupling in the X-axis walking synchronous transmission system of four-way shuttle vehicles has significant technical effects. It can reduce the impact of machining errors, solve the transmission instability problem caused by the existence of reasonable bearing play, adapt to complex installation and layout requirements, improve the reliability and durability of transmission, compress the layout space in the Z-axis direction, and realize the multifunctionality of the X-direction drive gearbox assembly. These advantages make the telescopic universal coupling have a wide application prospect in the walking drive system of four-way shuttle vehicles.

[0051] Preferably, the X-axis walking gear pair on one side connects two X-axis driven wheels. The X-axis walking gear pair on one side connects two X-axis driven wheels, which can realize uniform distribution of power. This design helps to ensure that both driven wheels receive the same power input under the same conditions, thereby improving the stability and reliability of walking.

[0052] Preferably, the last-stage gear 4-310 of the synchronous spur gear pair 4-31 is mounted on the Y-axis driving walking wheel shaft 4-5, and the two ends of the Y-axis driving walking wheel shaft are connected to the Y-axis walking driving box 4-9 through telescopic cross couplings, respectively, and the Y-axis walking gear pair 4-6 is mounted in the Y-axis walking driving box, and the last-stage gear of the Y-axis walking gear pair is connected to the Y-axis driving walking wheel. The technical effects of the cross coupling used in the Y-axis driving walking wheel mainly include the following aspects: first, the cross coupling can effectively transmit torque, ensuring stable and reliable power transmission between the Y-axis driving walking wheel shaft and the Y-axis walking driving box, thereby ensuring the smooth operation of the Y-axis driving walking wheel. Second, the telescopic cross coupling design allows for certain axial displacement and angular deviation, improving the adaptability and flexibility of the system and reducing the impact of installation errors or running vibrations on the equipment. In addition, this design also helps to reduce noise and wear during transmission, prolongs the service life of the equipment, and improves the stability and reliability of the overall system, providing a strong guarantee for the smooth operation of the equipment.

[0053] Preferably, the Y-axis walking gear pair on one side connects two Y-axis driving walking wheels 3. The Y-axis walking gear pair on one side connects two Y-axis driving walking wheels, which can achieve uniform distribution of power. This design helps to ensure that both driving wheels receive the same power input under the same conditions, thereby improving the stability and reliability of walking.

[0054] In summary, the synchronous walking driving assembly of the four-way shuttle vehicle realizes efficient, stable, and precise walking driving through ingenious design and high-quality components, providing a strong guarantee for the application of the shuttle vehicle in the field of logistics and other fields.

[0055] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A four-way shuttle synchronous driving assembly, characterized in that: The utility model provides a kind of vehicle frame, walking unit mounted on vehicle frame and the drive unit connected with walking unit, walking unit includes X-axis active walking wheel walking along X-axis direction of walking respectively mounted on the front and back sides of vehicle frame;Y-axis active walking wheel walking along Y-axis direction is respectively mounted on the left and right sides of vehicle frame;Its characterized in that: one X-axis active walking wheel side is equipped with drive unit;The drive unit includes a drive motor, the drive motor is connected with speed reducer, the speed reducer is connected with synchronous transmission box, the synchronous transmission box is equipped with reversing bevel gear pair driving both sides X-axis active walking wheel synchronous rotation;Reversing bevel gear pair is connected with X-axis walking gear pair, X-axis walking gear pair is connected with X-axis active walking wheel; Synchronous spur gear pair driving Y-axis active walking wheel synchronous rotation, synchronous spur gear pair is connected with Y-axis walking gear pair through Y-axis active walking wheel drive shaft, Y-axis walking gear pair is connected with Y-axis active walking wheel; The reversing bevel gear pair includes input cone gear mounted on the output shaft of speed reducer, the input cone gear engages driven cone gear, the driven cone gear is mounted on X-axis walking gear box through cone gear shaft, X-axis walking gear box is equipped with X-axis walking gear pair in it; The first stage gear of X-axis walking gear pair is coaxially arranged with driven cone gear, the last stage gear of X-axis walking gear pair is connected with X-axis active walking wheel, the synchronization gear of X-axis walking gear pair is connected with the X-axis walking gear pair in the X-axis walking gear box of other side through X-axis walking synchronization transmission shaft, the last stage gear of X-axis walking gear pair is connected with X-axis active walking wheel.

2. The synchronous walking drive assembly of the four-way shuttle vehicle according to claim 1, wherein: The X-axis walking synchronization transmission shaft adopts split structure, and the two split X-axis walking synchronization transmission shafts are connected through telescopic cross couplings.

3. The synchronous walking drive assembly of the four-way shuttle vehicle according to claim 2, characterized in that: One side X-axis walking gear pair is connected with two X-axis active walking wheels.

4. The synchronous walking drive assembly of the four-way shuttle vehicle according to claim 1, wherein: The last stage gear of synchronous spur gear pair is mounted on Y-axis active walking wheel drive shaft, and the both ends of Y-axis active walking wheel drive shaft are connected with Y-axis walking drive box through telescopic cross couplings respectively, Y-axis walking gear pair is mounted in Y-axis walking drive box, and the last stage gear of Y-axis walking gear pair is connected with Y-axis active walking wheel.

5. The synchronous walking drive assembly of the four-way shuttle vehicle according to claim 4, wherein: One side Y-axis walking gear pair is connected with two Y-axis active walking wheels.

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