A transmission device for four-way shuttle

Abstract

The present invention provides a transmission device for a four-way shuttle vehicle to solve the technical problem in the prior art that the transmission shaft of the four-way shuttle vehicle is deformed when the four-way shuttle vehicle is accelerated or braked; the transmission device is installed in the body of the four-way shuttle vehicle and is used to drive the body to move in a certain direction, including a lifting transmission bearing, a transmission shaft and at least one first guide component, the transmission shaft is installed through the body and is arranged near the front end of the body, the lifting transmission bearing is installed at one end of the transmission shaft, and is used to drive the transmission shaft to rise and fall under the drive of the lifting drive system, the first guide component includes a first bearing and a first guide block, the first guide block is fixedly installed on a side of the transmission shaft away from the front end of the body, a vertically arranged guide groove is formed on the side of the first guide block close to the transmission shaft, the first bearing is fixedly sleeved on the transmission shaft, and the guide groove is arranged to correspond to the outer side wall of the first bearing.

Description

Technical Field

[0001] The invention relates to the technical field of logistics transportation, and in particular to a transmission device for a four-way shuttle vehicle. Background Art

[0002] In recent years, with the increase in land and labor costs, the concept of intensive warehousing has attracted more and more attention from logistics companies and e-commerce companies. Automated three-dimensional warehouses have become an indispensable warehousing technology for corporate logistics and production management due to their high space utilization and strong storage and warehousing capabilities. Their application in the automotive, chemical, electronics, tobacco and other industries has increased year by year. In the next few years, one of the technical development trends of automated three-dimensional warehousing systems will be high speed, high efficiency and high density.

[0003] Currently on the market, the cargo handling equipment commonly used in high-bay warehouses is a four-way shuttle, which has two wheel sets that run on two sets of tracks respectively. When the four-way shuttle needs to run on different tracks, the two wheel sets are switched by relative lifting.

[0004] In the prior art, the wheel set is driven by a transmission shaft, and the lifting and lowering of the wheel set is also achieved by the lifting and lowering of the transmission shaft. The wheel set driven by each transmission shaft drives the body of the four-way shuttle to move in a direction perpendicular to the transmission shaft. Since the transmission shaft is relatively long, when the four-way shuttle is accelerating or braking, the transmission shaft will receive a large external force perpendicular to the direction of the transmission shaft, causing the transmission shaft to deform. Since the transmission shaft needs to be lifted and lowered, the traditional method of fixing the middle part of the transmission shaft to prevent deformation cannot meet the requirements. Therefore, it is necessary to propose a new transmission device to solve the above technical problems. Summary of the invention

[0005] The invention provides a transmission device for a four-way shuttle vehicle, so as to solve the technical problem in the prior art that the transmission shaft of the four-way shuttle vehicle is deformed when the four-way shuttle vehicle is accelerated or braked.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A transmission device for a four-way shuttle is installed in the body of the four-way shuttle and is used to drive the body to move in a certain direction. It includes a lifting transmission bearing, a transmission shaft and at least one first guide component. The transmission shaft is installed through the body and is arranged near the front end of the body. The lifting transmission bearing is installed at one end of the transmission shaft and is used to drive the transmission shaft to rise and fall under the drive of the lifting drive system. The first guide component includes a first bearing and a first guide block. The first guide block is fixedly installed on a side of the transmission shaft away from the front end of the body. A vertically arranged guide groove is formed on the side of the first guide block close to the transmission shaft. The first bearing is fixedly sleeved on the transmission shaft, and the guide groove is arranged to correspond to the outer side wall of the first bearing.

[0008] The transmission device provided by the present invention is characterized in that a first bearing is installed on the transmission shaft, and a first guide block is installed on the side of the transmission shaft away from the front end of the vehicle body, wherein a guide groove vertically arranged on the side of the first guide block close to the transmission shaft is formed. When the four-way shuttle vehicle is accelerating or braking, the transmission shaft tends to move toward the first guide block. However, since both ends of the transmission shaft are in contact with the vehicle body, the middle part of the transmission shaft will be subjected to a large horizontal external force, causing the middle part of the transmission shaft to deform. At this time, due to the presence of the first bearing and the first guide block, the outer wall of the first bearing will abut against the guide groove of the first guide block, thereby offsetting the horizontal external force in the middle part of the transmission shaft and ensuring that the transmission shaft is not deformed.

[0009] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of a transmission device for a four-way shuttle vehicle according to an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of a top view of a transmission device for a four-way shuttle vehicle according to an embodiment of the present invention;

[0013] Figure 3 is a schematic diagram of the three-dimensional structure of the first guide assembly in an embodiment of the present invention;

[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the second guide assembly in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0016] like Figure 1 As shown, this embodiment provides a transmission device for a four-way shuttle, which is installed in the body 200 of the four-way shuttle and is used to drive the body to move in a certain direction.

[0017] The transmission device includes a lifting transmission bearing 1, a transmission shaft 2 and at least one first guide assembly 3. The transmission shaft 2 is installed through the vehicle body 200 and is arranged near the front end 201 of the vehicle body. In this embodiment or other embodiments, the front end 201 of the vehicle body refers to the end of the vehicle body where the transmission shaft 2 is installed, and does not necessarily indicate the front and back direction of the vehicle body movement.

[0018] like Figure 2 As shown, the lifting transmission bearing 1 is installed at one end of the transmission shaft 2, and is used to drive the transmission shaft 2 to rise and fall under the drive of the lifting drive system. The first guide assembly 3 includes a first bearing 31 and a first guide block 32. The first guide block 32 is fixedly installed on the side of the transmission shaft 2 away from the front end 201 of the vehicle body. A vertically arranged guide groove 32a is formed on the side of the first guide block 32 close to the transmission shaft 2. The first bearing 31 is fixedly sleeved on the transmission shaft 2, and the guide groove 32a is correspondingly matched with the outer wall of the first bearing 31.

[0019] In the transmission device provided in this embodiment, when the four-way shuttle vehicle is accelerating or braking, the transmission shaft 2 tends to move toward the first guide block 32. However, since both ends of the transmission shaft 2 are in contact with the vehicle body, the middle part of the transmission shaft 2 will be subjected to a large horizontal external force, causing the middle part of the transmission shaft 2 to deform. At this time, due to the presence of the first bearing 31 and the first guide block 32, the outer wall of the first bearing 31 will abut against the guide groove 32a of the first guide block 32, thereby offsetting the horizontal external force in the middle part of the transmission shaft 2 and ensuring that the transmission shaft 2 is not deformed.

[0020] The first guide block 32 is fixedly installed on the side of the transmission shaft 2 away from the front end 201 of the vehicle body, and the specific installation method is preferably as follows: each first guide component 3 includes a guide reinforcement plate 33, one end of the guide reinforcement plate 33 is fixedly connected to the front end 201 of the vehicle body, and a vertically arranged first strip guide hole 33a is formed on the guide reinforcement plate 33. The transmission shaft 2 passes through the first strip guide hole 33a and rises and falls in the first strip guide hole 33a. The first guide block 31 is fixedly installed on the guide reinforcement plate 33 and is located on the side of the first strip guide hole 33a away from the front end 201 of the vehicle body.

[0021] In this embodiment, in order to ensure that the external force on the entire transmission shaft 2 can be well offset, the number of the first guide assemblies 3 is two, and the two first guide assemblies 3 are symmetrically installed at the front end 201 of the vehicle body.

[0022] More preferably, in the present embodiment, the transmission device also includes two second guide assemblies 4. Generally, in order to fix the vehicle body and prevent the wheels from shifting, side plates are installed on both sides of the vehicle body. Second strip guide holes are respectively formed on both sides of the vehicle body 200 corresponding to the two ends of the transmission shaft 2. When the transmission shaft is lifted up and down, the two ends of the transmission shaft are also lifted and lowered in the second strip guide holes. Specifically, taking the right side plate 202 as an example, a second strip guide hole 202a is opened thereon, and the right end of the transmission shaft 2 corresponds to the second strip guide hole 202a penetrated through the right side of the vehicle body, wherein each second guide assembly 4 includes a second bearing 41 and two second guide blocks 42, and the second bearing 41 is fixedly mounted on the corresponding end of the transmission shaft 2, and the two second guide blocks 42 are installed on both sides of the second strip guide hole 202a, and are arranged opposite to the second bearing 41 at the right end of the transmission shaft 2.

[0023] Due to the arrangement of the second bearing 41 and the second guide blocks 42 on both sides thereof, the two ends of the transmission shaft 2 will not directly contact the vehicle body. Therefore, when the transmission shaft 2 moves up and down, it will not directly rub against the vehicle body but will be converted into rolling between the second bearing 41 and the second guide blocks 42, thereby extending the life of the transmission shaft.

[0024] Preferably, in order to ensure that the second bearing 41 can still cooperate with the second guide block 42 when the transmission shaft 2 has a slight offset on the left and right sides, the number of second bearings 41 in each second guide assembly 4 is two, and the two second bearings 41 are installed in parallel at the corresponding ends of the transmission shaft 2, and the two second guide blocks 42 correspond to two different second bearings 41 respectively.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A transmission device for a four-way shuttle, installed in the body of the four-way shuttle, used to drive the body to move in a certain direction, It is characterized in that The invention comprises a lifting transmission bearing, a transmission shaft and at least one first guide assembly, wherein the transmission shaft is installed through the vehicle body and is arranged near the front end of the vehicle body, the lifting transmission bearing is installed at one end of the transmission shaft, and is used to drive the transmission shaft to lift and lower under the drive of the lifting drive system, the first guide assembly comprises a first bearing and a first guide block, the first guide block is fixedly installed on the side of the transmission shaft away from the front end of the vehicle body, a vertically arranged guide groove is formed on the side of the first guide block close to the transmission shaft, the first bearing is fixedly sleeved on the transmission shaft, and the guide groove is arranged in correspondence with the outer side wall of the first bearing; the number of the first guide assemblies is two, and the two first guide assemblies are symmetrically installed at the front end of the vehicle body; the first guide assembly also comprises a guide reinforcement plate, one end of the guide reinforcement plate is fixedly connected to the front end of the vehicle body, a vertically arranged first strip guide hole is formed on the guide reinforcement plate, the transmission shaft passes through the first strip guide hole and is lifted and lowered in the first strip guide hole, the first guide block is fixedly installed on the guide reinforcement plate, and is located on the side of the first strip guide hole away from the front end of the vehicle body; It also includes two second guide components, and second strip guide holes are respectively formed on both sides of the vehicle body corresponding to the two ends of the transmission shaft. The two ends of the transmission shaft respectively correspond to the second strip guide holes penetrated through the corresponding side of the vehicle body. Each of the second guide components includes a second bearing and two second guide blocks. The second bearing is fixedly mounted on the corresponding end of the transmission shaft. The two second guide blocks are installed on both sides of the second strip guide hole and are arranged opposite to the second bearing at the corresponding end.

2. A transmission device for a four-way shuttle according to claim 1, It is characterized in that The number of the second bearings in each of the second guide assemblies is two, and the two second bearings are installed in parallel at corresponding ends of the transmission shaft, and the two second guide blocks correspond to two different second bearings respectively.

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