Four-way shuttle car jacking structure

Abstract

The utility model provides a four-way shuttle car jacking structure, which belongs to the technical field of four-way shuttle cars, and comprises a car body, a group of jacking frames and a group of jacking mechanisms are respectively arranged at two ends of the car body, two Z-shaped jacking curve guide grooves are symmetrically formed in the front and the back of the side wall of each jacking frame, and each jacking mechanism comprises a double-output commutator. The input end of the double-output commutator is sequentially in transmission connection with a speed reducer and a driving motor, the two output ends of the double-output commutator are each in transmission connection with a ball screw, the two ends of each ball screw are rotationally installed on the vehicle body through bearing seats, the middle of each ball screw is in threaded connection with a sliding table, and a connecting rod is fixedly installed on the side face of each sliding table. Jacking rollers are arranged at the ends of the connecting rods and extend into the corresponding jacking curve guide grooves in the jacking frame. According to the utility model, the high-load jacking action can be completed only by using the low-power motor and the speed reducer with the low reduction ratio, so that the rigidity and strength requirements of the whole framework are reduced, and the framework is easy to maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of four-way shuttle vehicles, and in particular relates to a jacking structure of a four-way shuttle vehicle. Background Art

[0002] With the continuous development of the automated warehousing industry, in order to improve the utilization rate of warehouse space in the cargo storage process of various industries, most cargo storage systems have begun to adopt a more intensive stereoscopic warehouse system, so as to maximize the storage of goods in a limited space. In addition, the existing stereoscopic warehouse systems are arranged with more channels, and four-way shuttles shuttle in each channel to achieve the purpose of delivery and pickup.

[0003] At present, the lifting mechanism of the existing four-way shuttle mainly adopts hydraulic transmission or cam transmission. Among them, the hydraulic transmission method mainly uses a hydraulic system composed of a hydraulic pump, a hydraulic cylinder, a hydraulic valve and hydraulic oil, and uses a low-power motor to lift the high load by taking advantage of the characteristics of the hydraulic prime mover being small and the output force being large. However, since the hydraulic system needs to replace the hydraulic oil after a period of use, it has the problem of high maintenance costs in the later stage; at the same time, since the hydraulic system used is also prone to oil leakage, it also has the risk of contaminating the entire four-way shuttle and the channel.

[0004] The cam transmission method mainly uses a low-power motor and a high-reduction ratio reducer to cooperate, and the low-power motor drives the eccentric wheel to rotate in the corresponding direction to lift the high load. However, this cam transmission method also has certain defects: since it requires a very large driving force to drive, it will cause the overall structure to require higher rigidity and strength, and requires a high-reduction ratio reducer. In addition, since the gears of the high-reduction ratio reducer are subjected to greater force, the processing requirements are more stringent, and it is more susceptible to damage. It also has higher maintenance and use costs. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a novel four-way shuttle vehicle lifting structure, and enable it to complete high-load lifting actions by using a low-power motor and a low-reduction ratio reducer without using a hydraulic transmission system, thereby reducing the rigidity and strength requirements of the overall frame to make it easy to maintain.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a four-way shuttle car lifting structure, which includes a car body, a group of lifting frames and a group of lifting mechanisms are respectively arranged at both ends of the car body, a lifting plate is connected between the two groups of lifting frames, and the side walls of the lifting frames are symmetrically provided with two Z-shaped lifting curve guide grooves in the front and rear. The lifting mechanism includes a double-output commutator installed on the car body, the input end of the double-output commutator is sequentially connected to the reducer and the drive motor, and the two output ends of the double-output commutator are respectively connected to a ball screw, and the two ends of the ball screw are rotatably installed on the car body through a bearing seat, the middle part of the ball screw is threadedly connected to a slide, and the slide is horizontally slidably installed in the lifting frame, and a connecting rod is fixedly installed on the side of the slide, and a lifting roller is arranged on the end of the connecting rod. The lifting roller extends into the corresponding lifting curve guide groove on the lifting frame, and can move up and down with the horizontal movement of the slide, and the cooperation between the lifting roller and the lifting curve guide groove drives the lifting frame to move up and down. And based on this, since the utility model uses the principle of ball screw rotation to achieve the corresponding jacking action, it only needs to use a very small torque to jack up a very large load, that is, it only needs to use a low-power motor and a low reduction ratio reducer to complete the high-load jacking action, thereby reducing the rigidity and strength requirements of the overall frame and making it easy to maintain.

[0007] Furthermore, a Z-shaped auxiliary curved guide groove is arranged on the upper side and / or the lower side of the slide, and the auxiliary curved guide groove and the jacking curved guide groove are symmetrically arranged up and down; an auxiliary rod is fixedly installed between the two side walls of the jacking frame, and an auxiliary roller is rotatably installed on the auxiliary rod. The auxiliary roller is located in the corresponding auxiliary curved guide groove, and the jacking frame is auxiliary supported by the cooperation between the auxiliary roller and the auxiliary curved guide groove to avoid uneven force on the jacking frame, so as to ensure the stability of the jacking frame and the jacking plate connected to it.

[0008] Furthermore, the driving motor is a servo motor, and has the advantages of high precision and strong overload resistance.

[0009] Furthermore, the two groups of lifting mechanisms share a driving motor and a reducer to ensure the synchronization of the two groups of lifting mechanisms.

[0010] Furthermore, the dual-output commutators in the two groups of lifting mechanisms are respectively connected to the two reducers and / or the two drive motors, and they are controlled separately.

[0011] Furthermore, an opening is provided at one end of the auxiliary curved guide groove on the upper side and / or the lower side of the slide, which is away from the slide, so as to facilitate installation and removal of the auxiliary roller.

[0012] It can be seen from the above technical solutions that the utility model has the following advantages: since the utility model uses the principle of ball screw rotation to achieve the corresponding lifting action, it only needs to use very small torque to lift a very large load, that is, it only needs to use a low-power motor and a low-reduction ratio reducer to complete the lifting action of a high load, thereby reducing the rigidity and strength requirements of the overall frame and making it easy to maintain. At the same time, the utility model also has the advantages of compact overall structural size and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 The structure of the specific implementation method of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 It is a structural schematic diagram of the jacking mechanism and the jacking frame in a specific implementation manner of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the jacking mechanism in a specific implementation manner of the utility model.

[0017] In the figure: 1. Car body; 2. Dual-output commutator; 3. Slide; 4. Auxiliary roller; 5. Lifting roller; 6. Connecting rod; 7. Lifting frame; 8. Ball screw; 9. Auxiliary curve guide groove; 10. Lifting curve guide groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figures 1 to 3As shown, the utility model provides a four-way shuttle vehicle lifting structure, which includes a vehicle body 1, and a group of lifting frames 7 and a group of lifting mechanisms are respectively arranged at both ends of the vehicle body 1. Among them, a lifting plate is connected between the two groups of lifting frames 7, and the side walls of the lifting frames 7 are symmetrically provided with two Z-shaped lifting curve guide grooves 10. The lifting mechanism includes a dual-output commutator 2 installed on the vehicle body 1, and the input end of the dual-output commutator 2 is sequentially connected to a reducer and a drive motor, and the drive motor is a servo motor. The two groups of lifting mechanisms can share a drive motor and a reducer, or can be respectively connected to two reducers and / or two drive motors for separate control.

[0020] Each of the two output ends of the dual-output commutator 2 is transmission-connected with a ball screw 8, and the two ends of the ball screw 8 are rotatably mounted on the vehicle body 1 through a bearing seat. The middle part of the ball screw 8 is threadedly connected with a slide 3, and the slide 3 is horizontally slidably mounted in the jacking frame 7, and a connecting rod 6 is fixedly mounted on the side of the slide 3. A jacking roller 5 is provided at the end of the connecting rod 6, and the jacking roller 5 extends into the corresponding jacking curve guide groove 10 on the jacking frame 7, and can move up and down with the horizontal movement of the slide 3, and the cooperation between the jacking roller 5 and the jacking curve guide groove 10 drives the jacking frame 7 to move up and down.

[0021] Based on this, since the utility model utilizes the principle of rotation of the ball screw 8 to realize the corresponding lifting action, it only needs to use a very small torque to lift a very large load, that is, it only needs to use a low-power motor and a low reduction ratio reducer to complete the high-load lifting action, thereby reducing the rigidity and strength requirements of the overall frame and making it easy to maintain.

[0022] In addition, as a preferred embodiment, the utility model can also set a Z-shaped auxiliary curve guide groove 9 on the upper side and / or the lower side of the slide 3, and the auxiliary curve guide groove 9 and the lifting curve guide groove 10 are symmetrically arranged up and down; an auxiliary rod is fixedly installed between the two side walls of the lifting frame 7, and the auxiliary roller 4 is rotatably installed on the auxiliary rod, and the auxiliary roller 4 can be rotatably placed in the corresponding auxiliary curve guide groove 9, so that the utility model can also provide auxiliary support for the lifting frame 7 through the cooperation between the auxiliary roller 4 and the auxiliary curve guide groove 9 to ensure the stability of the lifting frame 7 and the lifting plate connected thereto. At the same time, in order to facilitate the maintenance personnel to install and disassemble it, the auxiliary curve guide groove 9 on the upper side and / or the lower side of the slide 3 can also be opened at one end away from the slide 3.

[0023] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A four-way shuttle vehicle lifting structure, comprising a vehicle body, a set of lifting frames and a set of lifting mechanisms are respectively arranged at both ends of the vehicle body, and a lifting plate is connected between the two sets of lifting frames; characterized in that: The side wall of the jacking frame is symmetrically provided with two Z-shaped jacking curve guide grooves. The jacking mechanism includes a double-output commutator installed on the vehicle body. The input end of the double-output commutator is sequentially connected to the reducer and the drive motor. The two output ends of the double-output commutator are respectively connected to a ball screw. The two ends of the ball screw are rotatably installed on the vehicle body through a bearing seat. The middle part of the ball screw is threadedly connected to a slide. The slide is horizontally slidably installed in the jacking frame. A connecting rod is fixedly installed on the side of the slide. A jacking roller is arranged at the end of the connecting rod. The jacking roller extends into the corresponding jacking curve guide groove on the jacking frame.

2. The four-way shuttle vehicle lifting structure according to claim 1 is characterized in that: A Z-shaped auxiliary curved guide groove is arranged on the upper side and / or the lower side of the slide, and the auxiliary curved guide groove and the jacking curved guide groove are arranged symmetrically up and down; an auxiliary rod is fixedly installed between the two side walls of the jacking frame, and an auxiliary roller is rotatably installed on the auxiliary rod, and the auxiliary roller is located in the corresponding auxiliary curved guide groove.

3. The four-way shuttle vehicle lifting structure according to claim 1 or 2, characterized in that: The driving motor is a servo motor.

4. The four-way shuttle vehicle lifting structure according to claim 1 or 2, characterized in that: The two sets of lifting mechanisms share a driving motor and a reducer.

5. The four-way shuttle vehicle lifting structure according to claim 1 or 2, characterized in that: The double-output commutators in the two groups of lifting mechanisms are respectively connected to the two reducers and / or the two driving motors.

6. The four-way shuttle vehicle lifting structure according to claim 2 is characterized in that: The auxiliary curved guide groove on the upper side and / or the lower side of the slide is provided with an opening at one end away from the slide.

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