Short-distance transportable operation wheel type stacker truck

Abstract

The utility model relates to the technical field of stacking trucks, and discloses a short-distance transport operation wheel type stacking truck, comprising a front-positioned fork assembly, a lifting guide rail mechanism and a double-cylinder parallel hydraulic lifting system, the front-positioned fork assembly comprises a fork arm, a sliding groove and a limiter, the lifting guide rail mechanism is installed at the front end of the vehicle body of the stacking truck and is used for guiding the vertical lifting of the front-positioned fork assembly, and the double-cylinder parallel hydraulic lifting system is arranged vertically on both sides in the lifting guide rail mechanism. The short-distance transport operation wheel type stacking truck has the advantages that by introducing a double-side wheel inner differential auxiliary driving device, a variable-distance counterweight shifting device and a multi-degree-of-freedom double-cylinder parallel lifting fork arm system on the basis of a traditional stacking truck, short-distance high-efficiency transport, accurate stacking and high-stability operation are realized, the problems of a large turning radius, heavy-load drift and the inability to accurately stack of the traditional stacking truck are effectively solved, and the stacking truck has outstanding substantial technical progress.

Description

Technical Field

[0001] This utility model relates to the field of stacker technology, specifically a wheeled stacker capable of short-distance transport operations. Background Technology

[0002] Existing stackers are mainly divided into rail-mounted, tracked, and wheeled structures. Among them, wheeled stackers are widely used in manufacturing, logistics, and construction due to their strong adaptability and ease of operation. However, when performing short-distance transport operations within factory areas or confined spaces, traditional stackers generally suffer from the following technical problems: 1. Inflexible steering: The use of rigid bogies or ordinary steering axles results in a large turning radius and a high risk of collisions. 2. Inaccurate stacking: Traditional lifting structures are slow to respond and inaccurate in positioning, making it difficult to meet the needs of high-frequency loading and unloading; 3. Unstable load: Forklifts are prone to tipping over when starting, decelerating, or turning while carrying heavy objects; 4. High energy consumption: The low coordination efficiency between the drive system and the hydraulic system results in high operating energy consumption; 5. Inconvenient maintenance: The structure is complex, difficult to disassemble and assemble, and has high maintenance costs.

[0003] Therefore, there is an urgent need for an innovative wheeled stacker that can achieve flexible operation, precise stacking, stable load, and easy maintenance in short-distance, high-frequency operation scenarios. Utility Model Content

[0004] The purpose of this invention is to provide a wheeled stacker vehicle capable of short-distance transportation operations, in order to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A wheeled stacker for short-distance transport includes a front fork assembly, a lifting guide mechanism, and a dual-cylinder parallel hydraulic lifting system. The front fork assembly includes fork arms, slides, and limiters. The lifting guide mechanism is installed at the front end of the stacker body to guide the vertical lifting of the front fork assembly. The dual-cylinder parallel hydraulic lifting system is vertically arranged on both sides of the lifting guide mechanism, and its stability is improved through synchronous control. The bottom of the stacker is equipped with a wheel set, with a differential inside the wheel set. The steering control mechanism is located between the two drive wheels of the wheel set. The stacker truck is connected by a steering rod. A variable-pitch counterweight structure is installed at the front end, and a driver's cab and seating system are located in the middle. A power output system is installed slightly to the left below the driver's cab. A light is installed on the upper front side of the stacker truck. A display and control screen is located in front of the driver's cab. A roof protection frame is installed on top of the driver's cab and seating system. A circuit control system is located at the bottom of the display and control screen, integrating a load center of gravity monitoring module and a limit sensor module.

[0006] Preferably, the steering control mechanism is connected to the steering wheel and the hydraulic power steering system.

[0007] Preferably, the power output system includes an internal combustion or electric drive unit, a speed reducer, and a drive shaft.

[0008] Preferably, the cockpit and seating system includes an adjustable safety seat and a control panel.

[0009] Preferably, a hydraulic differential linkage mechanism is provided between the steering control mechanism and the differential to dynamically adjust the speed difference between the left and right wheels.

[0010] Preferably, the circuit control system is used to coordinate the power supply and control of the electric drive system, the hydraulic system and the sensor module.

[0011] Compared with the prior art, this utility model has the following beneficial effects: This wheeled stacker truck for short-distance transportation: By introducing a dual-wheel differential auxiliary drive device, a variable-pitch counterweight shifting device, and a multi-degree-of-freedom dual-cylinder parallel lifting fork arm system on the basis of traditional stackers, it achieves high-efficiency transportation over short distances, precise stacking, and high-stability operation, effectively solving the problems of large turning radius, heavy-load drift, and inability to stack accurately in traditional stackers, and has outstanding substantial technological progress. Attached Figure Description

[0012] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the wheeled stacker truck for short-distance transportation operations according to this utility model; Figure 2 This is a partial structural diagram of the wheeled stacker truck for short-distance transportation operations according to this utility model; Figure 3 This is a top view of the wheeled stacker truck for short-distance transportation operations according to this utility model; Figure 4 This is a side view of the wheeled stacker truck for short-distance transportation operations according to this utility model; Figure 5 This is the circuit diagram of the wheeled stacker truck for short-distance transportation operations of this utility model; In the diagram: 1. Front fork assembly; 2. Lifting guide rail mechanism; 3. Dual-cylinder parallel hydraulic lifting system; 4. Wheel set; 5. Steering control mechanism; 6. Variable distance counterweight structure; 7. Cab and seating system; 8. Power output system; 9. Differential; 10. Lighting; 11. Display control panel; 12. Circuit control system; 13. Load center of gravity monitoring module; 14. Limit sensor module; 15. Roof protection frame. Detailed Implementation

[0013] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0014] Please see Figure 1-5 A wheeled stacker truck for short-distance transport includes a front fork assembly 1, a lifting guide mechanism 2, and a dual-cylinder parallel hydraulic lifting system 3. The front fork assembly 1 includes fork arms, slides, and limiters. The lifting guide mechanism 2 is installed at the front end of the stacker truck body to guide the front fork assembly 1 to lift vertically. The dual-cylinder parallel hydraulic lifting system 3 is vertically arranged on both sides of the lifting guide mechanism 2, and its stability is improved through synchronous control. The bottom of the stacker truck is equipped with a wheel set 4, and the inner side of the wheel set 4 is a differential 9. A steering control mechanism 5 is located between the two drive wheels of the wheel set 4 and connected to the steering rod. Next, the front end of the stacker truck is equipped with a variable-pitch counterweight structure 6, and the middle of the stacker truck is equipped with a driver's cab and seating system 7. The driver's cab and seating system 7 is installed on the lower left side of the driver's cab. The front front of the stacker truck is equipped with a lighting lamp 10. The driver's cab and seating system 7 is equipped with a display and control screen 11 in front of the driver's cab. The top of the driver's cab and seating system 7 is equipped with a roof protection frame 15. The bottom side of the display and control screen 11 is equipped with a circuit control system 12, which integrates a load center of gravity monitoring module 13 and a limit sensor module 14.

[0015] Among them, the steering control mechanism 5 is connected to the steering wheel and the hydraulic power steering system.

[0016] The power output system 8 includes an internal combustion or electric drive unit, a reducer, and a drive shaft.

[0017] Among them, the cockpit and seating system 7 includes an adjustable safety seat and a control panel.

[0018] Among them, a hydraulic differential linkage mechanism is provided between the steering control mechanism 5 and the differential 9 to dynamically adjust the speed difference between the left and right wheels.

[0019] The circuit control system 12 is used to coordinate the power supply and control of the electric drive system, hydraulic system and sensor module.

[0020] It should be noted that when this wheeled stacker is in operation, the power output system is activated by the operating system in the cab. The power source (which can be an electric drive or a fuel engine) outputs torque to the drive shaft via the gearbox, and then to the differential 9. Compared with the traditional single-drive system, this structure has higher power response and steering flexibility. When transporting loads, it can achieve small-radius or on-the-spot turning by the speed difference between the wheelsets, greatly improving operational adaptability.

[0021] When the operator operates the steering wheel to control the steering control mechanism 5, the steering angle information is fed back to the circuit control system 12. The circuit control system 12 adjusts the drive motor or hydraulic motor to output different torques to the left and right wheels, and in conjunction with the differential 9, constructs a dynamically adjustable curved driving trajectory. In confined transport areas, this structure has a "slip control" mode, effectively avoiding collisions and jamming.

[0022] The front fork assembly 1 is fixed inside the lifting guide rail mechanism 2 and driven by the dual-cylinder parallel hydraulic lifting system 3, enabling synchronous lifting and high load capacity. Traditional stackers suffer from problems such as fork arm misalignment and asynchronous lifting. This invention adopts a parallel dual-cylinder structure and, with the help of a flow divider valve and pressure synchronization control technology, enables the left and right hydraulic cylinders to operate at a uniform rate, achieving stable vertical movement of the forks.

[0023] During operation, the operator controls the lifting switch, and the electronic control unit sends commands to the hydraulic control module. Dual hydraulic cylinders, under synchronized control, push the guide rail to lift or lower, causing the forks to move the cargo up or down. The limit sensor module 14 monitors the guide rail position in real time to ensure the cargo does not exceed the safe height or fall to the lowest point.

[0024] To prevent rollover caused by center of gravity shift during transportation, the vehicle is equipped with a variable-pitch counterweight structure 6. This structure senses the vehicle tilt angle and load changes through the load center of gravity monitoring module 13, and drives the counterweight block to move along the slide to achieve real-time center of gravity adjustment, ensuring the overall stability of the stacker truck when starting, turning and stopping.

[0025] The display control panel 11 displays information such as current load, speed, and lifting height in real time, assisting the operator in achieving precise operations.

[0026] The lighting 10 ensures safe operation at night or in dimly lit environments, while the roof protection frame 15 enhances the personal safety of operators in high-load stack operations. All major components are arranged in standard industrial modules, facilitating disassembly, assembly, and maintenance, and have extremely high practical value and promotion prospects.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A wheeled stacker for short-distance transport operations, comprising a front-mounted fork assembly (1), a lifting guide rail mechanism (2), and a dual-cylinder parallel hydraulic lifting system (3), characterized in that: The front fork assembly (1) includes fork arms, slides, and limiters. The lifting guide mechanism (2) is installed at the front end of the stacker vehicle body to guide the front fork assembly (1) to lift vertically. A dual-cylinder parallel hydraulic lifting system (3) is vertically arranged on both sides of the lifting guide mechanism (2) to improve stability through synchronous control. The bottom end of the stacker vehicle is equipped with a wheel set (4), and the inner side of the wheel set (4) is a differential (9). The steering control mechanism (5) is located between the two drive wheels of the wheel set (4) and connected to the steering rod. The front end of the stacker vehicle is equipped with a variable-pitch counterweight structure (6), and the stacker vehicle... The middle part of the vehicle is provided with a driver's cab and seat system (7). A power output system (8) is installed on the lower left side of the driver's cab of the driver's cab and seat system (7). A lighting lamp (10) is installed on the upper side of the front front of the stacker. A display control screen (11) is provided in front of the driver's cab of the driver's cab and seat system (7). A roof protection frame (15) is installed on the top of the driver's cab and seat system (7). A circuit control system (12) is provided on the bottom side of the display control screen (11). The circuit control system (12) integrates a load center of gravity monitoring module (13) and a limit sensor module (14).

2. The wheeled stacker truck for short-distance transport operations according to claim 1, characterized in that: The steering control mechanism (5) is connected to the steering wheel and the hydraulic power assist system.

3. The wheeled stacker truck for short-distance transport operations according to claim 1, characterized in that: The power output system (8) includes an internal combustion or electric drive unit, a speed reducer and a drive shaft.

4. The wheeled stacker truck for short-distance transport operations according to claim 1, characterized in that: The cockpit and seating system (7) includes an adjustable safety seat and a control panel.

5. A wheeled stacker truck for short-distance transport operations according to claim 1, characterized in that: A hydraulic differential linkage mechanism is provided between the steering control mechanism (5) and the differential (9) to dynamically adjust the speed difference between the left and right wheels.

6. A wheeled stacker truck for short-distance transport operations according to claim 1, characterized in that: The circuit control system (12) is used to coordinate the power supply and control of the electric drive system, hydraulic system and sensor module.

Images