Mechanical tray four-way vehicle

Abstract

The utility model discloses a mechanical tray four-way vehicle, and belongs to the field of logistics storage. According to the mechanical wheel train switching mechanism, the tray jacking action and the wheel train rail changing action are completed in the switching process, and the purposes of achieving cooperative linkage of jacking and rail changing and improving the transmission efficiency of wheel train lifting rail changing and material supporting lifting are achieved on the basis that the overall dimension of the mechanism is effectively reduced and the internal space of a vehicle body is fully utilized. The walking mechanism is provided with a frame and a longitudinal walking wheel train, the lifting frame body is installed in the walking mechanism, is in transmission connection with a driving assembly and is provided with a transverse walking wheel train, and the lifting structure is vertically connected to the top of the walking mechanism in a lifting mode.

Description

Technical Field

[0001] The utility model relates to a pallet four-way shuttle vehicle for cargo transportation, belonging to the field of logistics warehousing. Background Art

[0002] At present, in the field of logistics and warehousing, automation and intelligent control technology have developed rapidly. With the continuous increase in industrial and commercial land and labor costs, intensive transit warehouses have higher operating efficiency because they can fully utilize space efficiency and reduce labor demand accordingly. The four-way shuttle car commonly used in automated stereoscopic warehouses can change direction along the longitudinal or transverse track on the cross track, so as to reach any designated cargo location in the warehouse according to the order requirements, and realize intensive storage and transportation.

[0003] The existing four-way shuttle vehicles generally use hydraulic reversing mechanisms, and the motor drives the fixed-stroke hydraulic cylinder to achieve jacking control, and the corresponding guide mechanism is configured to assist the hydraulic cylinder. The hydraulic system and electrical components of this jacking device are large in size, which is not conducive to the miniaturization design of the overall device and is difficult to adapt to the current situation of small work sites. In addition, this type of hydraulic reversing mechanism is prone to oil leakage, which cannot be implemented for tobacco, beauty, clothing, medicine and other industries with high requirements for cleanliness. In addition, there is also a transmission method that uses a motor-driven mechanical jacking reversing structure, but due to the size of the mechanical components, the entire vehicle body is relatively thick, which is also not conducive to the miniaturization design of the vehicle body. At the same time, the requirements for the refinement of component connections and installation processes are high, which is not conducive to controlling manufacturing costs.

[0004] In view of this, this patent application is proposed. Utility Model Content

[0005] The mechanical pallet four-way vehicle described in the utility model aims to solve the problems existing in the above-mentioned prior art and proposes a mechanical wheel system switching mechanism to realize the pallet jacking and wheel system track changing actions respectively during the switching process, so as to achieve the purpose of realizing the coordinated linkage between jacking and track changing and improving the transmission efficiency of wheel system lifting, track changing and material lifting on the basis of effectively reducing the overall dimensions of the mechanism and making full use of the internal space of the vehicle body.

[0006] To achieve the above-mentioned design objectives, the mechanical pallet four-way vehicle includes a traveling mechanism having a frame and a longitudinal traveling wheel train, a lifting frame body installed inside the traveling mechanism to be transmission-connected to a driving assembly and having a transverse traveling wheel train, and a lifting structure vertically and liftably connected to the top of the traveling mechanism; the driving assembly of the traveling mechanism includes a traveling driving motor, and the output end of the traveling driving motor is respectively connected to a first transmission shaft for transmitting the longitudinal traveling wheel train and a second transmission shaft for transmitting the transverse traveling wheel train through a group of chain sprocket assemblies; a jacking driving motor is arranged in the traveling mechanism, and the jacking driving motor is transmission-connected to a gear box, and the output end of the gear box is connected to a jacking transmission shaft, and one end of the jacking rocker arm is respectively sleeved on the shaft ends on both sides of the jacking transmission shaft, and the other end of the jacking rocker arm is embedded in and slidably connected to the guide groove on the lifting frame body.

[0007] Furthermore, the second transmission shaft is connected to the travel wheel axle of the transverse travel wheel system axially arranged on the lifting frame body through a universal coupling.

[0008] Furthermore, the lifting structure has a support plate, and an array of vertically distributed floating components and limiting components are connected to the bottom of the support plate, and the floating component is sleeved on a guide seat in the walking mechanism.

[0009] Furthermore, the floating assembly includes a guide column, a guide sleeve is mounted on the outer periphery of the guide column, the bottom end of the guide column is inserted into the guide seat, the top end of the guide column is fastened to the support plate through a floating joint and bolts, and there is a gap between the guide column and the floating joint.

[0010] Furthermore, the limiting assembly includes a limiting bolt fixedly connected to the lifting frame body in the vertical direction, a pre-stressed spring is sleeved on the limiting bolt, and the top end of the spring is fixedly connected to the supporting plate.

[0011] In summary, the mechanical pallet four-way vehicle described in this application has the following advantages:

[0012] 1. This application adopts gear transmission to drive the crank arm rocker, and realizes the actions of wheel system lifting and track changing and material lifting through mechanical cooperation and guiding mechanism. The overall structure is simple and efficient, and the gear transmission ratio and the length of the crank arm rocker can be adjusted according to the load and reversing height, realizing the diversified design of product parameters and meeting the requirements of different working conditions.

[0013] 2. This application realizes a mechanical transmission solution, which is simpler and more expandable and adjustable than the traditional lifting power structure.

[0014] 3. The gear train transmission of the present application all adopts chain transmission, which is simple, compact and has stronger self-adjusting ability; the gear box can adjust its output transmission ratio according to the actual working conditions without changing the external dimensions.

[0015] 4. The lifting stroke of the present application is determined by the length of the crank arm rocker. The length of the crank arm rocker can be adjusted to achieve stroke changes according to different lifting height requirements.

[0016] 5. The lifting structure designed in this application adopts a floating structure, which is easier to install and adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will now be further described with reference to the following drawings.

[0018] Figure 1 It is a schematic diagram of the structure of the mechanical pallet four-way vehicle described in the present application;

[0019] Figure 2 Yes Figure 1 An exploded schematic diagram of the structure shown;

[0020] Figure 3 It is a structural cross-sectional view of the floating assembly;

[0021] Figure 4 It is a schematic diagram of the local structure of the lifting and lowering joint;

[0022] Figure 5 is a schematic diagram of the lateral connection of the lifting frame body;

[0023] Figure 6 It is a schematic diagram of the process of wheel train lifting, track changing and lifting switching; DETAILED DESCRIPTION

[0024] Embodiment 1, as Figures 1 to 6 As shown, the mechanical pallet four-way vehicle proposed in this embodiment includes a traveling mechanism 1 having a frame 10 and a longitudinal traveling wheel train 14, a lifting frame 2 installed inside the traveling mechanism 1 to be transmission-connected to a driving assembly and having a transverse traveling wheel train 16, and a lifting structure 3 vertically connected to the top of the traveling mechanism 1 so as to be liftable.

[0025] Among them, the driving component of the walking mechanism 1 includes a walking drive motor 11, and the output end of the walking drive motor 11 is connected to a first transmission shaft 13 for transmitting the longitudinal walking wheel system 14 and a second transmission shaft 15 for transmitting the transverse walking wheel system 16 through a group of chain sprocket assemblies 12, so as to transmit power to the two walking wheel systems in the longitudinal and transverse directions respectively through the two groups of transmission shafts.

[0026] Specifically, the second transmission shaft 15 is connected to the travel wheel axle of the transverse travel wheel train 16 arranged on the lifting frame body 2 through the universal coupling 17, and then drives the transverse travel wheel train 16 to run along the transverse track after descending and changing tracks.

[0027] A lifting drive motor 5 is provided in the walking mechanism 1, and the lifting drive motor 5 is connected to the gear box 18 for transmission. The output end of the gear box 18 is connected to the lifting transmission shaft 19. One end of the lifting rocker arm 4 is respectively sleeved on the two side shaft ends of the lifting transmission shaft 19, and the other end of the lifting rocker arm 4 is embedded in and slidably connected to the guide groove 20 on the lifting frame body 2; under the output drive of the gear box 18, the lifting rocker arm 4 is driven by the lifting drive motor 5 to drive the lifting frame body 2 to realize lifting in the vertical direction.

[0028] The lifting structure 3 has a support plate 30, and a plurality of vertically distributed floating components 31 and limit components 32 are connected to the bottom of the support plate 30, and the floating component 31 is sleeved on the guide seat 33 in the walking mechanism 1;

[0029] The floating assembly 31 includes a guide column 31-1, on the outer periphery of which a guide sleeve 31-2 is sleeved, the bottom end of the guide column 31-1 is inserted into the guide seat 33, and the top end of the guide column 31-1 is fastened to the pallet 30 through a floating joint 31-3 and bolts, and there is a certain movable gap between the guide column 31-1 and the floating joint 31-3 to facilitate debugging and installation; thus, the guide column 31-1 is installed in cooperation with the walking mechanism 1 to realize the lifting and lowering of the pallet 30, and then complete the picking and placing of goods.

[0030] The limiting assembly 32 includes a limiting bolt 32-1 fixedly connected to the lifting frame body 2 in the vertical direction, a pre-stressed spring 32-2 is sleeved on the limiting bolt 32-1, and the top end of the spring 32-2 is fixedly connected to the support plate 30;

[0031] like Figure 6 As shown, during installation, the spring 32-2 is pre-stressed and has a certain elastic force. When the lifting frame 2 is lifted by the lifting rocker arm 4, the support plate 30 will be lifted together; when the lifting frame 2 is lowered, the support plate 30 will be lowered due to its own gravity, the gravity of the cargo and the elastic force of the spring 32-2.

[0032] The above contents and the embodiments given in the accompanying drawings are only preferred solutions for achieving the purpose of the utility model. For those skilled in the art, they can be inspired by this and directly deduce other alternative structures that conform to the design concept of the utility model. Other structural features obtained thereby should also belong to the scope of the solution described in the utility model.

Claims

1. A mechanical pallet four-way vehicle, characterized in that: It includes a traveling mechanism with a frame and a longitudinal traveling wheel system, a lifting frame body installed inside the traveling mechanism to be transmission-connected with a driving assembly and having a transverse traveling wheel system, and a lifting structure vertically connected to the top of the traveling mechanism in a liftable manner; The driving assembly of the walking mechanism includes a walking driving motor, and the output end of the walking driving motor is connected to a first transmission shaft for driving a longitudinal walking gear train and a second transmission shaft for driving a transverse walking gear train through a set of chain and sprocket assemblies; A jacking drive motor is arranged in the walking mechanism, and the jacking drive motor is connected to the gear box, and the output end of the gear box is connected to the jacking transmission shaft. One end connected to the jacking rocker arm is respectively sleeved on the shaft ends on both sides of the jacking transmission shaft, and the other end of the jacking rocker arm is embedded in and slidably connected to the guide groove on the lifting frame body.

2. The mechanical pallet four-way vehicle according to claim 1, characterized in that: The second transmission shaft is connected with the travel wheel shaft of the transverse travel wheel system axially arranged on the lifting frame body through a universal coupling.

3. The mechanical pallet four-way vehicle according to claim 1, characterized in that: The lifting structure has a supporting plate, at the bottom of which are connected a plurality of vertically distributed floating components and limiting components, and the floating components are sleeved on a guide seat in the walking mechanism.

4. The mechanical pallet four-way vehicle according to claim 3, characterized in that: The floating assembly includes a guide column, a guide sleeve is sleeved on the outer periphery of the guide column, the bottom end of the guide column is inserted into the guide seat, the top end of the guide column is fastened to the support plate through a floating joint and bolts, and there is a gap between the guide column and the floating joint.

5. The mechanical pallet four-way vehicle according to claim 3 or 4, characterized in that: The limiting assembly comprises a limiting bolt which is fixedly connected to the lifting frame body in the vertical direction, a pre-stressed spring is sleeved on the limiting bolt, and the top end of the spring is fixedly connected to the supporting plate.

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