Sky rail guide wheel device of stacking machine and stacking machine

Abstract

The utility model provides a sky rail guide wheel device of a stacking machine. The sky rail guide wheel device comprises a fixing base, a rotating mechanism and a rack used for installing a guide wheel. The fixed seat is provided with an upper cross beam connecting device which is mounted on an upper cross beam of the stacking machine; the rack is arranged on the fixing base through the rotating mechanism, and a rotating shaft of the rotating mechanism extends in the vertical direction. The rack is triangular, and each corner is provided with a guide wheel; in the working state, the first guide wheel abuts against the outer side of the sky rail, and the two second guide wheels abut against the inner side of the sky rail. According to the sky rail guide wheel device of the stacking machine, turning of the stacking machine is facilitated, and the failure rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to a stacking machine, in particular to a sky rail guide wheel device of a stacking machine and the stacking machine. BACKGROUND

[0002] In the existing turning stacking machine, the design of the sky rail guide wheel set has obvious defects. The current sky rail guide wheel set is generally composed of two guide wheels and is installed on both sides of the sky rail in a clamping manner. This structure can meet the basic guiding requirements when running in a straight line. However, when the stacking machine performs a turning operation, the walking directions of the sky rail and the guide wheel will be inconsistent, at which time the friction between the two will be greatly increased. The increase in friction not only easily causes the stacking machine to run to be jammed, reduces the work efficiency, but also accelerates the wear of the guide wheel, causes the guide wheel to be damaged too early, increases the equipment maintenance cost and downtime, and seriously affects the normal operation of the automatic warehouse system. SUMMARY

[0003] In view of the defects in the prior art, the utility model provides a sky rail guide wheel device of a stacking machine and the stacking machine, which facilitates the turning of the stacking machine and reduces the failure rate.

[0004] The sky rail guide wheel device of the stacking machine provided by the utility model comprises a fixed seat, a rotating mechanism and a rack for installing guide wheels.

[0005] The working principle of the sky rail guide wheel device of the stacking machine provided by the utility model is as follows: the inner side of the sky rail turning is the inner side of the sky rail, and the other side is the outer side. Since the three guide wheels on the rack are arranged in a triangular shape, when running to the turning position, the second guide wheel located at the front end in the advancing direction enters the bend first, and the force of the track on the guide wheel forms a force arm, thereby facilitating the turning of the rack and preventing it from being stuck; at the same time, the structure of the device is simple and saves space.

[0006] According to one embodiment provided by the utility model, in the vertical projection direction, the rotating shaft of the rotating mechanism is located on a straight line that passes through the midpoint of the center line of the two second guide wheels and is perpendicular to the center line.

[0007] According to one embodiment provided by the utility model, the center of the first guide wheel is located on the straight line.

[0008] According to one embodiment provided by the utility model, the rack is provided with a rail clamping plate, the upper end of the rail clamping plate is provided with a clamping groove, and in the working state, the lower end of the sky rail is located in the clamping groove.

[0009] According to an embodiment of the utility model, the width of the clamping groove is greater than the width of the gap between the guide wheels.

[0010] According to an embodiment of the utility model, the two working surfaces of the clamping groove are located outside the gap.

[0011] According to an embodiment of the utility model, the diameters of the two second guide wheels are the same.

[0012] According to an embodiment of the utility model, the diameters of the first guide wheel and the second guide wheel are the same.

[0013] The utility model provides a kind of stacking machine, including upper crossbeam, the front end and rear end of the upper crossbeam are equipped with a set of the overhead rail guide wheel device described in the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. In all drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0015] Figure 1 The structural schematic diagram of the stacking machine provided for an embodiment;

[0016] Figure 2 The structural schematic diagram of the stacking machine main body;

[0017] Figure 3 The structural schematic diagram of the overhead rail guide wheel device

[0018] Figure 4 The Figure 3 The overhead rail guide wheel device is a top view.

[0019] EXPLANATION OF REFERENCE NUMERALS

[0020] 1-stacking machine, 11-upper crossbeam, 2-overhead rail, 3-overhead rail guide wheel device, 31-fixed seat, 32-rotary mechanism, 33-rack, 34-first guide wheel, 35-second guide wheel, 36-clamping rail plate. DETAILED DESCRIPTION

[0021] The embodiments of the technical solutions of the utility model will be described in detail below in combination with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the utility model, so only as an example, and cannot limit the protection scope of the utility model.

[0022] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be the usual meaning understood by the skilled person in the field to which the present application belongs.

[0023] With reference to Figures 1 to 4 The stacker provided by the embodiment is provided with an upper cross beam 11, and a set of overhead rail guide wheel devices 3 are respectively installed at the front end and the rear end of the upper cross beam 11. The overhead rail guide wheel device mainly comprises a fixed seat 31, a rotating mechanism 32 and a rack 33. The fixed seat 31 is provided with a connecting device connected to the upper cross beam 11. The connecting device adopts a high-strength bolt structure, and through the bolt hole positions calculated accurately, the overhead rail guide wheel device can be firmly installed on the upper cross beam 11 of the stacker 1. Through testing, under the working condition that the stacker runs at the highest speed and frequently starts and stops, the device can still remain stable without loosening and displacement.

[0024] The rack 33 is installed on the fixed seat 31 through the rotating mechanism. The rotating shaft of the rotating mechanism extends vertically, and the rotating shaft is made of high-hardness alloy steel material and is matched with a high-precision bearing to provide stable and flexible support for the rotation of the rack 33. The rack 33 is in the shape of an equilateral triangle, and one guide wheel is installed at each of the three corners. In operation, the first guide wheel 34 abuts against the outer side of the overhead rail 2, and the wheel surface thereof is made of polyurethane material; the two second guide wheels 35 abut against the inner side of the overhead rail 2, and the wheel surfaces thereof are made of rubber material, which can provide a larger friction force to ensure the stable guidance of the stacker during operation.

[0025] Due to the triangular layout of the three guide wheels on the rack 33, when the stacker turns, the second guide wheel 35 at the front end of the forward direction enters the bend first, and the force of the track acting on the second guide wheel 35 forms a force arm to drive the rack 33 to turn. Through laboratory testing, the device can make the rack smoothly adjust the turning when the stacker runs at high speed, and avoid the problem of jamming that easily occurs in the traditional double-guide-wheel device, and save installation space compared with the traditional device.

[0026] In the vertical projection direction, the rotating shaft of the rotating mechanism is located at the midpoint of the line connecting the centers of the two second guide wheels 35, and the midpoint intersects with a straight line perpendicular to the line. The straight line plays a key balancing role in the operation process of the stacker. With such a layout, whether the stacker advances or retreats to the same turning point, the rotating mechanism can rotate at a stable and consistent angle. This precise geometric layout design makes the pressure borne by each guide wheel evenly distributed during the turning process, effectively avoiding excessive wear of a certain guide wheel due to concentrated stress, and greatly prolonging the overall service life of the guide wheel.

[0027] When turning, the rotating mechanism rotates as a whole with the rear guide wheel cutting point as the center. In this process, the motion trajectory of the first guide wheel 34 is closely related to the rotation of the entire rotating mechanism. When the center of the first guide wheel 34 is set away from the rear guide wheel, the motion geometry of the first guide wheel 34 during turning will change. From the perspective of kinematics, taking a common 90° turn as an example, when the rotating mechanism rotates, the first guide wheel 34 needs to pass through an arc to follow the overall turning. Because the center of the first guide wheel 34 is set away from the rear guide wheel, the radius of the arc increases relatively, resulting in a significant increase in the lateral movement distance of the first guide wheel 34.

[0028] In actual operation, the structure and layout of the overhead rail 2 are given, and when the lateral movement distance of the first guide wheel 34 increases, it is more likely to interfere with the edge of the overhead rail or other structural components in the limited overhead rail space. Especially in the working condition of frequent turning, such interference may occur frequently, causing the first guide wheel 34 to jam. Once the first guide wheel 34 jams, not only will it hinder the smooth turning of the stacker, but it may also cause uneven stress on other guide wheels, further affecting the stability of the stacker operation, and even may cause equipment failure, reducing the working efficiency and service life of the stacker.

[0029] The clamping rail plate 36 on the rack 33 is provided with a clamping groove at the upper end, and the two side walls of the clamping groove are designed with a 5° inclination angle to facilitate the embedding of the lower end of the overhead rail 2. In normal operation, the first guide wheel 34 and the second guide wheel 35 are clamped between the two sides of the guide rail; when the guide wheel is damaged, the clamping groove of the clamping rail plate 36 can clamp the guide rail within 0.1 seconds to prevent derailment. The width of the clamping groove is 5mm larger than the gap between the guide wheels, and the two working surfaces are located outside the gap to avoid collision with the guide rail during normal operation. In addition, the diameters of the three guide wheels are the same, ensuring that the rotational speeds of the guide wheels are consistent and the forces are balanced, thereby improving the overall working performance of the device.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] In the description of the present application, a large number of specific details are explained. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present application.

[0033] In the description of the present application, a large number of specific details are explained. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present application.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and description of the present application.

Claims

1. A device for a trolley wheel of a stacker, characterized in that The device comprises: a fixed base (31), a rotating mechanism (32) and a frame (33) for mounting the guide wheels; the fixed base (31) is provided with an upper cross beam (11) connecting device for mounting on the upper cross beam (11) of the stacker (1); the frame (33) is arranged on the fixed base (31) through the rotating mechanism, and the rotating shaft of the rotating mechanism extends in the vertical direction; the frame (33) is triangular, and each corner is provided with a guide wheel; in the working state, the first guide wheel (34) abuts against the outer side of the overhead rail (2), and the two second guide wheels (35) abut against the inner side of the overhead rail (2).

2. The overhead rail guide arrangement of a storage and retrieval machine according to claim 1, characterized in that, In the vertical projection direction, the rotating shaft of the rotating mechanism is located on a straight line that passes through the midpoint of the connecting line of the centers of the two second guide wheels (35) and is perpendicular to the connecting line.

3. The overhead rail guide arrangement of a storage and retrieval machine according to claim 2, characterized in that, The center of the first guide wheel (34) is located on the straight line.

4. The overhead rail guide arrangement of a storage and retrieval machine according to claim 1, characterized in that, The frame (33) is provided with a rail clamping plate (36), and the upper end of the rail clamping plate (36) is provided with a clamping groove; in the working state, the lower end of the overhead rail (2) is located in the clamping groove.

5. The overhead rail guide arrangement of a stacker according to claim 4, characterized in that, The width of the clamping groove is greater than the width of the guide wheel gap.

6. The overhead rail guide arrangement of a stacker according to claim 5, characterized in that, The two working surfaces of the clamping groove are located on the outer side of the gap.

7. The overhead rail guide arrangement of a stacker according to claim 1, characterized in that, The diameters of the two second guide wheels (35) are the same.

8. The overhead rail guide arrangement of a storage and retrieval machine according to claim 7, characterized in that The diameter of the first guide wheel (34) is the same as that of the second guide wheel (35).

9. A stacker characterized in that, The device comprises an upper cross beam (11), and the front end and the rear end of the upper cross beam (11) are respectively provided with a set of the overhead rail guide wheel device (3) according to any one of claims 1-8.

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