Straddle carrier convenient to steer and adjust

Abstract

The straddle carrier convenient to steer and adjust comprises a frame, a steering power assembly is arranged on the frame, a plurality of steering wheel assemblies are arranged at the bottom of the frame, and the steering power assembly is connected with a rotating wheel assembly. The frame comprises a lower frame unit and an upper frame which is vertically installed on the lower frame in a sliding mode under the action of a lifting assembly. Steering can be accurately controlled, the flow of hydraulic oil is controlled through the proportional multi-way valve, the rotating speed of rotary driving can be accurately controlled, the height of the straddle carrier and the position of a lifting appliance can be rapidly adjusted through the design of the lifting assembly and the extending supporting frame, and therefore the straddle carrier can meet the operation requirements of different heights and positions. And the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of transfer device, especially, relate to a cross -hauling vehicle convenient to steering adjustment. BACKGROUND

[0002] With the development of energy storage industry, the cross -hauling vehicle transfers the energy storage box and becomes the industry mainstream. The cross -hauling vehicle is designed at the beginning to satisfy the logistics industry transport container, and is applied to the outdoor field use. But when using in the indoor, the existing cross -hauling vehicle cannot realize the function of transverse movement and in situ steering. And when the cross -hauling vehicle shifts the energy storage box, the hoisting height is low, when there is other sundries on the road surface or the ground is uneven, the container is easily damaged. CONTENT OF UTILITY MODEL

[0003] (I) utility model purpose

[0004] In order to overcome above insufficient, the utility model discloses a kind of cross -hauling vehicles convenient to steering adjustment, to solve above-mentioned technical problem.

[0005] (II) technical scheme

[0006] To achieve the above object, the technical scheme provided by the present application is as follows:

[0007] A kind of cross -hauling vehicles convenient to steering adjustment, including frame, the frame is equipped with steering power component, the bottom of the frame is equipped with multiple steering wheel components, the steering power component is connected with rotation wheel component, the frame includes lower frame unit and upper frame, which is vertically slidingly installed on lower frame under the action of lifting assembly.

[0008] Preferably, the upper frame includes a main frame and an extension support frame arranged at both ends of the main frame, each of the extension support frames is equipped with multiple pulleys, each of the pulleys is slidingly equipped with a steel rope, one end of the steel rope is connected to the top of the lifting device, the other end of the steel rope is connected to the stretching oil cylinder.

[0009] Preferably, the pulley is slidingly installed on the extension support frame, the extension support frame is equipped with a sliding oil cylinder, the sliding oil cylinder is connected to the pulley, the stretching oil cylinder is rotatably installed on the main frame, and the rotation direction of the stretching oil cylinder is horizontal rotation.

[0010] Preferably, the steering wheel component is provided with four, which are symmetrically installed at the included angle of the lower frame, two of which are connected to the speed reducer to become drive steering wheel components, and the two drive rotation wheel components are arranged at the opposite corners of the lower frame.

[0011] Preferably, the steering wheel assembly comprises a steering frame connected with the lower frame, the steering frame is connected with the steering wheel unit through a steering adjusting unit, an encoder is arranged in the steering adjusting unit, the encoder is connected with a steering drive shaft of the steering wheel unit, the steering wheel unit is connected with the steering adjusting unit through the steering drive shaft, and the steering adjusting unit is connected with the steering power assembly.

[0012] Preferably, the steering power assembly comprises a hydraulic pump and a proportional multi-way valve.

[0013] Preferably, the lifting assembly is installed at four support columns of the frame, the lifting assembly comprises a lifting base and a lifting oil cylinder arranged on the lifting base, the lifting base is installed on the upper frame, and the telescopic end of the lifting oil cylinder is connected with the lower frame.

[0014] Preferably, the upper end of each support column of the lower frame is provided with a guide column, the inside of the support column of the upper frame is provided with a guide groove corresponding to the guide column, and the upper frame is slidingly installed on the guide column.

[0015] Preferably, the lifting tool is arranged on the lifting tool.

[0016] Beneficial effects:

[0017] The utility model improves the mobility and flexibility, reduces the wear and tear of the wheels at the same time. By setting the driving wheels at the diagonal position and combining the steering power assembly with the rotary drive, the straddle carrier can also be flexibly turned and moved in a narrow space. This design reduces the space required for turning the vehicle and improves the flexibility of operation. By designing the diagonal driving wheels, the turning angles and speeds of the inner wheel set and the outer wheel set are different when the vehicle turns, which can more evenly distribute the wear and tear of the wheels and prolong the service life of the wheels.

[0018] The utility model can accurately control the steering, control the rotation speed of the rotary drive and then control the steering speed by controlling the hydraulic oil flow through the proportional multi-way valve. At the same time, by switching the flow direction of the hydraulic oil, the rotation direction of the rotary drive can be changed to realize accurate steering control.

[0019] The utility model improves the work efficiency, can quickly adjust the height of the straddle carrier and the position of the lifting tool through the design of the lifting assembly and the extension support frame, so that the straddle carrier can adapt to the work requirements of different heights and positions and improve the work efficiency.

[0020] The utility model enhances the stability, the upper frame slides on the guide column through the lifting assembly, which makes the straddle carrier more stable during lifting and reduces the unstable factors caused by height changes. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the structural schematic view of the utility model;

[0022] Figure 2 is the enlarged view of A according to an embodiment of the utility model;

[0023] Figure 3 is the structural view after the upper frame is lifted;

[0024] Figure 4 is the side view according to an embodiment of the utility model;

[0025] Figure 5 is the structural view of the steering wheel assembly according to an embodiment of the utility model;

[0026] Figure 6 is the inside and outside wheel steering geometric angle according to an embodiment of the utility model;

[0027] Figure 7 is the walking mode according to an embodiment of the utility model;

[0028] Figure 8 is the in-place rotation walking mode schematic view of an embodiment of the utility model. DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the utility model more clear and explicit, the following will be combined with specific embodiments and refer to the attached drawings to further specifically describe the utility model. Figures 1-8 The utility model is further specifically described. It should be understood that these descriptions are only exemplary and not to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0030] A cross conveyor convenient for steering adjustment, comprising a frame 1, the frame 1 is equipped with a steering power assembly 7, the steering power assembly 7 includes a hydraulic pump and a proportional multi-way valve. The steering power assembly 7 is connected with a rotating wheel assembly 6, when straightening, the steering power assembly 7 does not work, when turning, the hydraulic pump provides steering power, the controller controls the proportional multi-way valve, the proportional multi-way valve controls the hydraulic oil flow to control the rotation speed of the rotation drive and the steering speed, and the proportional multi-way valve also switches the hydraulic oil flow direction to change the rotation direction of the rotation drive and control the steering direction. When steering, the inside wheel group steering angle is large, and the outside wheel group steering angle is small, and the angle relationship is cot β-cot α=B / A. In addition, when steering, the outside wheel group speed is fast, and the inside wheel group speed is slow, and the speed relationship is Vout / Vin=cos α / cos β.

[0031] When moving horizontally: the hydraulic pump provides steering power, the controller controls the proportional multi-way valve, the proportional multi-way valve controls the rotation drive to drive the four groups of wheel sets to rotate 90 degrees in place, and then the straddle carrier moves horizontally.

[0032] When moving diagonally: the hydraulic pump provides steering power, the controller controls the proportional multi-way valve, the proportional multi-way valve controls the rotation drive to drive the four groups of wheel sets to rotate in the same direction, and then the straddle carrier can move diagonally.

[0033] When rotating in place: the hydraulic pump provides steering power, the controller controls the proportional multi-way valve, the proportional multi-way valve controls the rotation drive to drive the four groups of wheel sets to rotate in the same direction, and then the straddle carrier can rotate in place. The angle is γ = arctan A / B.

[0034] The bottom of the frame 1 is provided with a plurality of steering wheel assemblies 6, which are provided with four, symmetrically installed at the included angle of the lower frame 12, two of which are connected with the speed reducer 16 to become drive steering wheel assemblies. Specifically, the drive shaft of the steering wheel assembly 6 is connected with the speed reducer 16. The rotation of the steering wheel assembly 6 is driven by the speed reducer 16, realizing the movement of the entire straddle carrier.

[0035] Two drive rotating wheel assemblies are arranged at opposite corners of the lower frame 12, which can improve the maneuverability of the vehicle, allowing it to flexibly turn and move in narrow spaces, while effectively reducing the wear of the wheels.

[0036] The steering wheel assembly 6 includes a steering frame connected with the lower frame 12, a steering adjustment unit 15 connected with a steering wheel unit 14 on the steering frame, an encoder provided in the steering adjustment unit 15, the encoder connected with a steering drive shaft of the steering wheel unit, the steering wheel unit connected with the steering adjustment unit through the steering drive shaft, and the steering adjustment unit connected with a steering power assembly. The steering adjustment unit is a rotary drive, and after the encoder receives a signal, the rotation direction of the rotating drive shaft is adjusted, thereby adjusting the angle of the steering wheel assembly and realizing the steering of the straddle carrier.

[0037] The frame 1 includes a lower frame unit 12 and an upper frame 11 vertically slidingly installed on the lower frame 12 under the action of a lifting assembly. The upper frame 11 includes a main frame and extension support frames 4 arranged at both ends of the main frame. Each extension support frame 4 is provided with a plurality of pulleys 3, each pulley 3 is slidingly provided with a steel rope 5, one end of the steel rope 5 is connected with a top of a spreader 8, and the other end of the steel rope 5 is connected with a stretching oil cylinder 2. The spreader 8 is provided with hoisting tools for fixing containers or other articles to be transferred.

[0038] The pulley 3 is slidingly installed on the extension support frame 4, the extension support frame 4 is provided with a sliding oil cylinder 9, the sliding oil cylinder is connected with the pulley 3, the stretching oil cylinder 2 is rotationally installed on the main body frame, and the rotation direction of the stretching oil cylinder 2 is horizontal rotation.

[0039] The upper end of the support column of each lower frame 12 is provided with a guide column 13, the inside of the support column of the upper frame is provided with a guide groove, the guide groove corresponds to the guide column 13, and the upper frame 11 is slidingly installed on the guide column 13.

[0040] The lifting assembly is installed at the four support columns of the frame, the lifting assembly comprises a lifting base and a lifting oil cylinder 10 arranged on the lifting base, the lifting base is installed on the upper frame, and the telescopic end of the lifting oil cylinder is connected with the lower frame.

[0041] The utility model discloses improve mobility and flexibility, reduce the wear and tear of wheel simultaneously. By setting the driving wheel at the diagonal, and adopting the combination of steering power assembly and rotary drive, the straddle carrier can also be flexibly steered and moved in narrow space. This design reduces the space required for vehicle turning, improves the flexibility of operation. Through the design of diagonal driving wheel, the steering angles and speeds of the inner wheel set and the outer wheel set are different when the vehicle turns, which can more evenly distribute the wear and tear of the wheels and prolong the service life of the wheels.

[0042] The utility model discloses can accurate control turns, through proportional multiway valve control hydraulic oil flow, can accurate control rotary speed of rotary drive, and then control steering speed. Meanwhile, through switching hydraulic oil flow direction, can change rotary direction of rotary drive, realizes accurate steering control.

[0043] The utility model discloses improve work efficiency, through the design of lifting assembly and extension support frame, can fast adjustment straddle carrier's height and the position of hoist, make straddle carrier can adapt to different height and position's operation demand, improve work efficiency.

[0044] The utility model discloses enhance stability, and the upper frame slides on the guide column through the lifting assembly, and this design makes the straddle carrier more stable during lifting, reduces the unstable factors caused by height change.

[0045] The utility model discloses improve the security, and the steering adjusting unit is equipped with encoder, can real -time monitoring the steering angle and the speed of steering wheel, adjusts through controller, ensures the accuracy and security of steering.

[0046] The utility model discloses strong adaptability, the design of cross -a -transport vehicle can adapt to different operation environment and requirement, whether be in the warehouse ground of flat or in the container yard of wharf, can provide good performance.

[0047] It should be noted that in this document, relationship terms such as first and second are used only to distinguish one entity or action from another, and do not necessarily require or imply these entities or actions are in any order or sequence. Moreover, the terms "comprising," "including," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0048] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part technical features; and these modifications or replacements do not make the essence of corresponding technical scheme deviate from the spirit and scope of the technical scheme of each embodiment of the utility model.

Claims

1. A straddle carrier with facilitated steering adjustment, characterized in that The frame is provided with a steering power assembly, the bottom of the frame is provided with a plurality of steering wheel assemblies, the steering power assembly is connected with the steering wheel assembly, the frame comprises a lower frame unit and an upper frame vertically slidingly installed on the lower frame under the action of a lifting assembly, the upper frame comprises a main frame and extension support frames arranged at both ends of the main frame, each extension support frame is provided with a plurality of pulleys, a steel rope is slidingly arranged on each pulley, one end of the steel rope is connected with the top of a lifting tool, the other end of the steel rope is connected with a stretching oil cylinder, the pulley is slidingly installed on the extension support frame, the extension support frame is provided with a sliding oil cylinder, the sliding oil cylinder is connected with the pulley, the stretching oil cylinder is rotationally installed on the main frame, and the rotation direction of the stretching oil cylinder is transverse horizontal rotation.

2. A straddle carrier with easy steering adjustment according to claim 1, characterized in that The steering wheel assembly is provided with four steering wheel assemblies symmetrically installed at the included angle of the lower frame, two of the steering wheel assemblies are connected with a speed reducer to become drive steering wheel assemblies, and the two drive steering wheel assemblies are arranged at opposite corners of the lower frame.

3. A straddle carrier with facilitated steering adjustment according to claim 1 or 2, characterized in that The steering wheel assembly comprises a steering frame connected with the lower frame, the steering frame is connected with a steering wheel unit through a steering adjusting unit, an encoder is arranged in the steering adjusting unit, the encoder is connected with a steering drive shaft of the steering wheel unit, the steering wheel unit is connected with the steering adjusting unit through the steering drive shaft, and the steering adjusting unit is connected with the steering power assembly.

4. A straddle carrier with easy steering adjustment according to claim 1, characterized in that, The steering power assembly comprises a hydraulic pump and a proportional multi-way valve.

5. A straddle carrier with easy steering adjustment according to claim 1, characterized in that, The lifting assembly is installed at four support columns of the frame, the lifting assembly comprises a lifting base and a lifting oil cylinder arranged on the lifting base, the lifting base is installed on the upper frame, and the telescopic end of the lifting oil cylinder is connected with the lower frame.

6. A straddle carrier with easy steering adjustment according to claim 1, characterized in that, The upper end of the support column of each lower frame is provided with a guide column, the support column of the upper frame is internally provided with a guide groove corresponding to the guide column, and the upper frame is slidingly installed on the guide column.

7. A straddle carrier with easy steering adjustment according to claim 1, characterized in that, The lifting tool is arranged on the lifting tool.

Images