Novel wheel box structure of stacking machine

Abstract

The utility model provides a novel wheel box structure of a stacker, which relates to the technical field of logistics equipment and comprises a driving wheel and a driving wheel shaft, the driving wheel shaft is inserted in the center of the driving wheel in a penetrating manner, the joint of the driving wheel and the driving wheel shaft is in conical surface connection, and square covers are respectively sleeved on two sides of the driving wheel and positioned on the driving wheel shaft. The novel wheel box structure applied to the stacking machine is novel in overall design and simple in structure, and compared with a traditional stacking machine wheel box structure, the novel wheel box structure applied to the stacking machine has the advantages that the overall design is novel, the structure is simple, and the practicability is high. And a spline connection mode between the driving wheel and the driving wheel shaft is replaced by conical surface combination, so that the connection is more stable, and the device is worthy of wide popularization and use.

Description

Technical Field

[0001] This utility model belongs to the field of logistics equipment technology, and more specifically, it relates to a novel wheel box structure for stacker cranes. Background Technology

[0002] Automated storage and retrieval systems (AS / RS) are an important component of modern logistics. Stacker cranes, as indispensable lifting equipment in AS / RS, directly impact the operational efficiency of the system. The wheel box assembly is a crucial component of the stacker crane; therefore, the design and use of the stacker crane's traveling mechanism are of paramount importance.

[0003] Based on the above, the inventors have discovered the following problems: Current stacker cranes use a walking motor to drive wheels on a guide rail for horizontal movement via a drive shaft. During the movement, the wheel box structure often experiences problems such as loose fit and failure of the walking bearing.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a new type of wheel box structure for stacker cranes, in order to achieve a more practical value. Utility Model Content

[0005] The purpose and effect of this utility model, which discloses a novel wheel box structure for a stacker crane, are achieved through the following specific technical means:

[0006] A novel wheel box structure for a stacker crane includes a drive wheel and a drive wheel axle. The drive wheel axle is inserted through the center of the drive wheel, and the connection between the drive wheel and the drive wheel axle is a conical connection. Square covers are respectively fitted on both sides of the drive wheel located on the drive wheel axle, and the internal structure of the square covers is exactly the same. A bushing is fitted between the left side of the drive wheel and one of the square covers.

[0007] Furthermore, a pressure cap is installed on the side wall of one of the square covers, and a shaft end pressure cap is installed at the center of the pressure cap, and the two are assembled and installed by bolts.

[0008] Furthermore, the square cover and the pressure cover are provided with a bearing chamber inside, in which a nylon ring and a steel ring are installed, and a self-aligning roller bearing is installed between the nylon ring and the steel ring.

[0009] Furthermore, an oil cup is installed at the connection between the other square cover and the pressure cap, and is assembled and installed by bolts and screws.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In this structure, the drive wheel and drive wheel shaft use a tapered surface connection instead of a spline connection. The position and relative movement between the drive wheel and drive wheel shaft are maintained through the friction and pressure between the connecting surfaces, ensuring the stability of the connection. At the same time, during the force transmission process, the contact pressure distribution between the tapered surfaces is more uniform, which can reduce the fatigue stress of the parts and thus improve the mechanical life of the wheel set.

[0012] 2. The bearing is a self-aligning roller bearing, which has good impact resistance.

[0013] 3. The box structure at the top of the wheel body has been removed, and the box structure on the front and rear sides of the drive wheel has been replaced with a bearing chamber. This results in low processing cost, a reasonable and compact structure, easy installation and replacement, and convenient observation of the drive wheel's condition. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of a novel wheel box structure for a stacker crane according to this utility model.

[0015] Figure 2 This is a schematic diagram of a novel wheel box structure for a stacker crane according to this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of a novel wheel box structure for a stacker crane according to this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0018] 1. Drive wheel; 2. Drive wheel shaft; 3. Bearing housing; 4. Bushing; 5. Nylon ring; 6. Steel ring; 7. Pressure cap; 8. Shaft end pressure cap; 9. Self-aligning roller bearing; 10. Bolt 2; 11. Screw; 12. Oil cup; 13. Bolt 1. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example:

[0023] As attached Figure 1 To be continued Figure 3 As shown:

[0024] This utility model provides a novel wheel box structure for a stacker crane, including a drive wheel 1 and a drive wheel axle 2. The drive wheel axle 2 is inserted through the center of the drive wheel 1, and the connection between the drive wheel 1 and the drive wheel axle 2 is a conical connection. Square covers are respectively fitted on both sides of the drive wheel 1 on the drive wheel axle 2, and the internal structure of the square covers is exactly the same. A bushing 4 is fitted between the left side of the drive wheel 1 and one of the square covers. The drive wheel 1 and the drive wheel axle 2 are connected by a conical connection. The position and relative movement between the drive wheel 1 and the drive wheel axle 2 are maintained by the friction and pressure between the connecting surfaces, ensuring the stability of the connection. At the same time, the conical connection can transmit greater bending moment and torque. Meanwhile, the bushing 4 fixes the position of the axle and prevents the drive wheel axle 2 from moving axially during operation.

[0025] One of the square covers has a pressure cap 7 installed on its side wall, and a shaft end pressure cap 8 is installed at the center of the pressure cap 7, and is assembled and installed by bolt 13.

[0026] The square cover and the pressure cover 7 are provided with a bearing chamber 3 inside. A nylon ring 5 and a steel ring 6 are installed in the bearing chamber 3, and a self-aligning roller bearing 9 is installed between the nylon ring 5 and the steel ring 6. The pressure cover 7 is connected to the bearing chamber 3 by screws 11 to prevent the steel ring 6 and the nylon ring 5 from moving axially.

[0027] One of them, an oil cup 12 is installed at the connection between the other square cover and the pressure cover 7, and is assembled and installed by bolts 10 and screws 11. The oil cup 12 is installed on the bearing chamber 3, and the self-aligning roller bearing 9 is lubricated by the oil cup 12, which reduces the wear of the self-aligning roller bearing 9 and extends its service life.

[0028] The specific usage and function of this embodiment are as follows:

[0029] First, the wheel box is installed in the designated position. The right end of the drive wheel shaft 2 is connected to the geared motor. The geared motor drives the drive wheel shaft 2 to rotate. The self-aligning roller bearing 9 supports the drive wheel shaft 2 to rotate. The drive wheel shaft 2 transmits torque to the drive wheel 1 through the connection between the drive wheel shaft 2 and the drive wheel 1, thereby driving the drive wheel 1 to rotate, which in turn drives the stacker crane to move.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A new type of wheel box structure of a stacker, comprising a driving wheel (1) and a driving wheel shaft (2), characterized in that: The drive wheel shaft (2) is inserted through the center of the drive wheel (1), and the connection between the drive wheel (1) and the drive wheel shaft (2) is a conical connection. Square covers are respectively fitted on both sides of the drive wheel (1) on the drive wheel shaft (2), and the internal structure of the square covers is exactly the same. A bushing (4) is fitted between the left side of the drive wheel (1) and one of the square covers.

2. A new type of wheel box structure of a stacker as claimed in claim 1, characterized in that: One of the square covers has a pressure cap (7) installed on its side wall, and a shaft end pressure cap (8) is installed at the center of the pressure cap (7), and is assembled and installed by bolts (13).

3. The new wheel case structure of the stacker as claimed in claim 2, wherein: The square cover and the pressure cover (7) are provided with a bearing chamber (3), a nylon ring (5) and a steel ring (6) are installed in the bearing chamber (3), and a self-aligning roller bearing (9) is installed between the nylon ring (5) and the steel ring (6).

4. The new wheel case structure of the stacker as claimed in claim 3, wherein: Another square cover is fitted with an oil cup (12) at the connection between the cover and the pressure cap (7), and is assembled and installed by bolts (10) and screws (11).

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