Three-fulcrum forklift with good flexibility

Abstract

The utility model discloses a three-fulcrum forklift with good flexibility, which belongs to the technical field of forklifts and is characterized by comprising a forklift body, a pallet fork, a lifting mechanism, a driving system, a steering system and three fulcrum wheel trains, the pallet fork is connected with the forklift body through the lifting mechanism, the three fulcrum wheel trains are respectively positioned on the front side and the rear side of the bottom of the forklift body, and the driving system is connected with the steering system. A left driving wheel and a right driving wheel are arranged on the front side, a single universal wheel is arranged on the rear side, the universal wheel is connected with the forklift body through a steering knuckle, and the forklift has the advantages that the defect that a traditional forklift is poor in flexibility is overcome, and accurate operation is achieved in a narrow space.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fork truck, more specifically, it relates to a three-point fork truck with good flexibility. BACKGROUND

[0002] A fork truck is a widely used handling equipment in industrial and logistics fields, mainly used for loading and unloading, stacking and short-distance transportation of goods. It is usually composed of a wheeled structure, with a metal fork arm at the front end for lifting and moving goods. The design of the fork truck is flexible, which can be operated in a small space, and is suitable for places such as warehouses, factories, ports and stations.

[0003] Traditional fork trucks usually use rudder wheels for driving, with a large turning radius, making it difficult to move flexibly and accurately in a small space, resulting in a significant decrease in efficiency. INVENTION CONTENTS

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a three-point fork truck with good flexibility, which has the advantages of overcoming the poor flexibility of traditional fork trucks and accurately operating in a small space.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A three-point fork truck with good flexibility, comprising a vehicle body, a fork, a lifting mechanism, a driving system, a steering system and three support wheel systems, the fork is connected to the vehicle body by the lifting mechanism, the three support wheel systems are respectively located on the front side and the rear side of the bottom of the vehicle body, the front side is a left drive wheel and a right drive wheel, the rear side is a single universal wheel, the universal wheel is connected to the vehicle body through a steering knuckle.

[0007] The advantages of this scheme at least lie in that, due to the adoption of a three-point structure and a single large-angle flexible universal wheel on the rear side, the turning radius of the utility model fork truck is extremely small, which can realize a compass type steering mode, so that the fork truck can easily realize small radius turning in a narrow space and freely shuttle in space-limited areas such as between warehouse shelves, greatly improving the flexibility and efficiency of operation.

[0008] The utility model is further provided as follows: the steering knuckle adopts a joint bearing structure.

[0009] The advantages of this scheme at least lie in that: the joint bearing structure can realize large-angle flexible steering, small steering resistance, and is suitable for low-speed heavy-load swinging, tilting and rotating motion. This structure is simple, small in size, and very suitable for fork trucks that require high carrying capacity.

[0010] The utility model is further provided as follows: the left drive wheel and the right drive wheel are each equipped with an independent hydraulic motor drive.

[0011] According to the advantages of this scheme, at least the hydraulic drive technology gives the forklift the steering accuracy to adapt to variable working conditions and the layout flexibility to meet various functions. The independent drive system can flexibly adjust the power output of the left and right drive wheels according to different road conditions and working conditions, so as to realize more accurate steering and driving control.

[0012] The utility model further sets up: left drive wheel, right drive wheel and universal wheel all install independent suspension device and shock absorber.

[0013] According to the advantages of this scheme, at least the hydraulic drive technology gives the forklift the steering accuracy to adapt to variable working conditions and the layout flexibility to meet various functions. The independent drive system can flexibly adjust the power output of the left and right drive wheels according to different road conditions and working conditions, so as to realize more accurate steering and driving control.

[0014] The utility model further sets up: left drive wheel and right drive wheel all adopt wide tread design.

[0015] According to the advantages of this scheme, at least the hydraulic drive technology gives the forklift the steering accuracy to adapt to variable working conditions and the layout flexibility to meet various functions. The independent drive system can flexibly adjust the power output of the left and right drive wheels according to different road conditions and working conditions, so as to realize more accurate steering and driving control.

[0016] The utility model further sets up: the bottom of rear side of car body is equipped with mounting plate, and the outward one side end surface of mounting plate is equipped with ultrasonic sensor.

[0017] According to the advantages of this scheme, at least the hydraulic drive technology gives the forklift the steering accuracy to adapt to variable working conditions and the layout flexibility to meet various functions. The independent drive system can flexibly adjust the power output of the left and right drive wheels according to different road conditions and working conditions, so as to realize more accurate steering and driving control.

[0018] In summary, the utility model has at least the following advantages:

[0019] 1, through setting up suspension device and shock absorber, can improve the moving ability and stability of forklift in complex environment, can automatically adjust the damping force according to the road bumping situation, effectively filter road vibration, reduce the body sway, guarantee the stable handling of goods;

[0020] 2, through setting up mounting plate and ultrasonic sensor, ultrasonic sensor can detect the pedestrian or other obstacles behind, and remind the driver through the frequency adjustment of light flicker, so as to reduce the risk of collision when reversing. This alarm system can effectively improve the safety of forklift when reversing, avoid the accident caused by blind area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of a preferred embodiment of the present utility model;

[0022] Figure 2 It is a partial structural diagram of the utility model;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0024] Figure numerals: 1. vehicle body; 2. cargo fork; 3. lifting mechanism; 4. three-point wheel system; 401. left driving wheel; 402. right driving wheel; 403. universal wheel; 5. steering knuckle; 6. mounting plate; 7. ultrasonic sensor. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0026] A three-point forklift with good flexibility, such as Figure 1 As shown, the vehicle comprises a vehicle body 1, a fork 2, a lifting mechanism 3, a drive system, a steering system, and a three-point wheel system 4. The fork 2 is connected to the vehicle body 1 through the lifting mechanism 3. The three-point wheel system 4 is located at the front and rear sides of the bottom of the vehicle body 1. The front side is a left drive wheel 401 and a right drive wheel 402, and the rear side is a single universal wheel 403. The universal wheel 403 is connected to the steering knuckle 5 (refer to FIG. Figure 3 ) is connected to the vehicle body 1. Due to its three-point structure and the single, wide-angle, flexible universal wheel 403 at the rear, the forklift of this utility model has an extremely small turning radius, enabling a compass-style steering mode. This allows the forklift to easily achieve small-radius turns in narrow spaces and freely maneuver in confined areas such as between warehouse shelves, greatly improving operational flexibility and efficiency.

[0027] like Figure 3 As shown, the steering knuckle 5 utilizes a spherical bearing structure. This structure enables flexible steering at large angles with minimal steering resistance, and is suitable for swing, tilt, and rotation movements with low speeds and heavy loads. This simple structure and compact size make it ideal for forklifts requiring high load capacities.

[0028] like Figure 1 As shown, the left drive wheel 401 and the right drive wheel 402 are each driven by an independent hydraulic motor. Hydraulic drive technology provides the forklift with precise control in varying working conditions and flexible layout to accommodate diverse functions. This independent drive system can flexibly adjust the power output of the left and right drive wheels 402 according to varying road conditions and working conditions, thereby achieving more precise steering and driving control.

[0029] As shown in Figure 1 , the left drive wheel 401, the right drive wheel 402 and the universal wheel 403 are each provided with an independent suspension device and a shock absorber. By providing the suspension device and the shock absorber, the moving ability and stability of the forklift in complex environments can be improved, the shock absorbing force can be automatically adjusted according to the road bumping condition, the road vibration can be effectively filtered, the shaking of the vehicle body 1 is reduced, and the stable carrying of goods is ensured.

[0030] As shown in Figure 1 , the left drive wheel 401 and the right drive wheel 402 are both designed with wide tread. The wide tread design can increase the contact area of the tire with the ground. This helps to improve the stability and grip of the forklift on various road surfaces, and also enhances the support and heat dissipation performance of the tire. When the forklift runs for a long time or under high load conditions, the tire can better withstand external forces and reduce tire failure caused by temperature rise.

[0031] As shown in Figure 3 , the bottom of the rear side of the vehicle body 1 is provided with a mounting plate 6, and the outer side end face of the mounting plate 6 is provided with an ultrasonic sensor 7. By providing the mounting plate 6 and the ultrasonic sensor 7, the ultrasonic sensor 7 can detect pedestrians or other obstacles behind, and remind the driver through light flicker frequency adjustment, thereby reducing the risk of collision when reversing. This alarm system can effectively improve the safety of the forklift when reversing, and avoid accidents caused by blind spots.

[0032] The working process and beneficial effects of the utility model are as follows: the forklift of the utility model adopts a three-point structure and a single large-angle flexible universal wheel 403 at the rear side, the turning radius of the forklift of the utility model is extremely small, the compass type steering mode can be realized, the forklift can easily realize small-radius turning in narrow space, can freely shuttle in space-limited areas such as warehouse shelves, and greatly improves the flexibility and efficiency of operation.

[0033] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the design concept of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flexible three-point forklift truck comprising a truck body (1), a fork (2), a lifting mechanism (3), a drive system, a steering system and three point wheel systems (4), characterised in that: The fork (2) is connected with the vehicle body (1) through a lifting mechanism (3), the three fulcrum wheel systems (4) are respectively located at the front side and the rear side of the bottom of the vehicle body (1), the front side is a left drive wheel (401) and a right drive wheel (402), the rear side is a single universal wheel (403), and the universal wheel (403) is connected with the vehicle body (1) through a knuckle (5).

2. The tri-castor forklift truck with good flexibility according to claim 1, characterized in that: The knuckle (5) adopts a joint bearing structure.

3. The tri-castor forklift truck with good flexibility according to claim 1, characterized in that: The left drive wheel (401) and the right drive wheel (402) are both equipped with independent hydraulic motor drives.

4. The tri-castor forklift truck of claim 1 wherein: Independent suspension devices and shock absorbers are installed at the left drive wheel (401), the right drive wheel (402) and the universal wheel (403).

5. The tri-castor forklift truck of claim 1 wherein: The left drive wheel (401) and the right drive wheel (402) both adopt a wide tread design.

6. The tri-castor forklift truck of claim 1 wherein: An installation plate (6) is arranged at the bottom of the rear side of the vehicle body (1), and an ultrasonic sensor (7) is arranged on the outer side end face of the installation plate (6).

Images