Horizontal guide wheel for stacking machine

Abstract

The utility model relates to a horizontal guide wheel for a stacking machine, and belongs to the technical field of stacking machine equipment. The guide wheel comprises a three-section type eccentric guide wheel shaft, a guide wheel shell and a mounting assembly, the guide wheel shaft is composed of a first eccentric shaft section, a second eccentric shaft section and a third eccentric shaft section, the diameters of the first eccentric shaft section, the second eccentric shaft section and the third eccentric shaft section are sequentially increased at equal intervals. The top of the guide wheel shaft fixes an end cover plate through a sunk screw, and the bottom is limited by an elastic check ring. The first mounting block and the second mounting block surround the outer side of the guide wheel shaft and are connected and fixed through standard parts, a shaft hole or a lock disc structure does not need to be precisely machined, and assembly is simplified; the guide wheel shaft adopts optical axis design, thread machining is omitted, and production cost is reduced. The utility model can obviously improve the reliability of equipment and reduce the maintenance difficulty, and is suitable for various storage stacker equipment.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane equipment technology, and in particular to a horizontal guide wheel for a stacker crane. Background Technology

[0002] With the rapid development of automation technology in the field of smart warehousing, stacker cranes, as core handling equipment, are widely used in logistics systems. This technology improves equipment reliability through modular design.

[0003] In traditional stacker crane designs, the horizontal guide wheel shaft adopts a segmented structure: the diameter of the bearing mounting section is significantly larger than that of the fixed guide wheel section, and the guide wheel assembly is fixed to the equipment base by a locking disc device. This approach requires pre-machining shaft holes on the equipment mounting surface and repeatedly tightening and loosening the locking disc during commissioning to adjust the guide wheel clearance. It also requires the guide wheel shaft to be machined with specific threads to meet assembly requirements.

[0004] However, the above-mentioned guide wheel assembly has the following technical problems: First, the difference in diameter between the bearing section and the fixed section leads to stress concentration, which can easily cause plastic deformation of the small-diameter guide wheel section under heavy load conditions, shortening its service life; Second, when the load is increased and the bearing size needs to be increased, the overall diameter of the guide wheel shaft must be increased simultaneously, which is very costly; Finally, the locking disc type fixing structure relies on manual adjustment, and the locking disc must be disassembled and the clearance recalibrated every time maintenance is performed, which increases downtime and reduces system maintainability. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a horizontal guide wheel for a stacker crane, which facilitates fixed assembly, has low precision requirements, and simplifies the production process by eliminating the need for thread machining.

[0006] The technical solution adopted in this utility model is as follows: A horizontal guide wheel for a stacker crane, comprising:

[0007] Guide wheel shaft, guide wheel housing, first mounting block and second mounting block;

[0008] The guide wheel shaft is a three-section eccentric guide wheel shaft, and the top outer periphery of the guide wheel shaft is fitted with the guide wheel housing. A deep groove ball bearing is provided between the guide wheel shaft and the guide wheel housing, and an elastic retaining ring is provided at the bottom of the deep groove ball bearing.

[0009] The top surface of the guide wheel shaft is provided with a guide wheel shaft end cover plate, and the guide wheel shaft end cover plate is fixed to the top surface of the guide wheel shaft by countersunk screws;

[0010] The first mounting block is fixed on the stacker crane equipment, and the second mounting block is arranged around the outside of the guide wheel shaft with the first mounting block, and the first mounting block and the second mounting block are connected and fixed by standard parts.

[0011] As a further improvement to the above technical solution:

[0012] The three-section eccentric structure of the guide wheel shaft includes a first eccentric shaft section, a second eccentric shaft section, and a third eccentric shaft section arranged sequentially in the vertical direction;

[0013] The diameters of the first eccentric shaft segment, the second eccentric shaft segment, and the third eccentric shaft segment increase at equal intervals according to the eccentricity distance.

[0014] The top of the first eccentric shaft section is provided with a countersunk screw hole, and the countersunk screw cooperates with the countersunk screw hole to fix the guide wheel shaft end cover plate.

[0015] The diameter of the second eccentric shaft segment is 1.5-2.5 mm larger than the diameter of the first eccentric shaft segment, and the diameter of the third eccentric shaft segment is 1.5-2.5 mm larger than the diameter of the second eccentric shaft segment.

[0016] The elastic retaining ring is located at the bottom of the deep groove ball bearing and is embedded in the corresponding matching annular groove on the guide wheel housing.

[0017] The first mounting block and the second mounting block are connected and fixed by bolts or pins.

[0018] The guide wheel shaft has an optical axis structure.

[0019] The inner wall of the guide wheel housing is interference-fitted with the outer ring of the deep groove ball bearing.

[0020] The first mounting block and the second mounting block are respectively provided with a positioning boss and a groove on one side of the contact surface for assembly and alignment.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention features a compact structure and convenient assembly. By employing a three-section eccentric guide shaft (with the diameters of the first, second, and third eccentric shaft sections increasing sequentially at equal intervals), it optimizes the stress distribution between shaft sections, reduces the risk of plastic deformation, and extends service life under heavy load conditions. Furthermore, when increasing the eccentricity, the diameter of the second section of a traditional two-section shaft often exceeds the diameter limited by the bearing inner ring. This invention, through its three-section eccentric guide shaft structure, optimizes this by preventing the diameter of the second section from exceeding the required diameter of the bearing inner ring due to increased eccentricity. Moreover, the multi-section design of this invention can accommodate larger eccentricities, avoiding the limitations of the bearing inner ring size and expanding its applicability.

[0023] This utility model also has the following advantages:

[0024] (1) The guide wheel shaft of this utility model is a smooth shaft with no threads on the surface, which simplifies the processing technology; at the same time, the countersunk screws and the countersunk screw holes at the top enable the quick installation of the end cover plate, avoiding the complexity of traditional thread processing and locking disc adjustment, and reducing production costs.

[0025] (2) The elastic retaining ring of this utility model, combined with the high load-bearing capacity of the deep groove ball bearing, enhances the overall stability;

[0026] (3) This utility model ensures that the bearing and the guide wheel housing are tightly fixed by interference fit between the inner wall of the guide wheel housing and the outer ring of the deep groove ball bearing, thereby reducing loosening caused by vibration. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2 for Figure 1 The main view.

[0029] Figure 3 for Figure 2 AA section view in the image.

[0030] Figure 4 This is a schematic diagram of the guide wheel shaft of this utility model.

[0031] Figure 5 This is a diagram showing the working state of the present invention in a specific embodiment.

[0032] The components include: 1. First mounting block; 2. Guide wheel shaft; 3. Guide wheel housing; 4. Guide wheel shaft end cover plate; 5. Second mounting block; 6. Countersunk screw; 7. Elastic retaining ring; 8. Deep groove ball bearing;

[0033] 21. First eccentric shaft section; 22. Second eccentric shaft section; 23. Third eccentric shaft section; 24. Countersunk threaded hole. Detailed Implementation

[0034] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0035] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0038] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0039] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0040] like Figures 1-4 The accompanying drawing shows a schematic diagram of the structure of a horizontal guide wheel for a stacker crane according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0041] This utility model provides a horizontal guide wheel for a stacker crane, including a first mounting block 1, a guide wheel shaft 2, a guide wheel housing 3, a guide wheel shaft end cover plate 4, a second mounting block 5, a countersunk screw 6, an elastic retaining ring 7, and a deep groove ball bearing 8.

[0042] In this embodiment, the guide wheel shaft 2 further adopts a three-section eccentric shaft design, which consists of a first eccentric shaft section 21, a second eccentric shaft section 22, and a third eccentric shaft section 23 in sequence along the vertical direction;

[0043] The diameter of the first eccentric shaft segment 21 is the reference size, the diameter of the second eccentric shaft segment 22 is 1.5-2.5mm larger than that of the first eccentric shaft segment 21, and the diameter of the third eccentric shaft segment 23 is 1.5-2.5mm larger than that of the second eccentric shaft segment 22, forming a stepped structure with equidistantly increasing diameters.

[0044] In this embodiment, the top of the first eccentric shaft section 21 is provided with a countersunk screw hole 24, which is used to cooperate with the countersunk screw 6 to fix the guide wheel shaft end cover plate 4.

[0045] In this embodiment, the guide wheel shaft 2 is an overall optical shaft structure with no threads on the surface, which simplifies the processing technology.

[0046] In this embodiment, the guide wheel housing 3 is sleeved around the guide wheel shaft 2, and its inner wall is interference-fitted with the outer ring of the deep groove ball bearing 8 to ensure that the outer ring of the bearing is tightly fixed to the guide wheel housing 3 and reduce loosening caused by vibration.

[0047] In this embodiment, the inner ring of the deep groove ball bearing 8 is mounted on the first eccentric shaft section 21, and its bottom is limited by an elastic retaining ring 7. The elastic retaining ring 7 is embedded in the corresponding annular groove on the inner wall of the guide wheel housing 3 to form axial fixation.

[0048] In this embodiment, the guide wheel shaft end cover plate 4 is fixed to the top of the guide wheel shaft 2 by countersunk screws 6. The head of the countersunk screw 6 is embedded in the countersunk screw hole 24 to ensure that the end face is flat and to avoid interference with other components.

[0049] In this embodiment, the first mounting block 1 is fixed on the base of the stacker crane equipment, and the second mounting block 5 is symmetrically arranged with the first mounting block 1 and is configured around the outer side of the guide wheel shaft 2.

[0050] Furthermore, the contact surfaces of the first mounting block 1 and the second mounting block 5 are respectively provided with positioning bosses and grooves to facilitate quick alignment during assembly;

[0051] Furthermore, the first mounting block 1 and the second mounting block 5 are connected and fixed by standard parts such as bolts or pins, eliminating the need to machine precision shaft holes on the equipment base or use a locking disc structure, which significantly simplifies the installation process.

[0052] In this embodiment, the elastic retaining ring 7 is located at the bottom of the deep groove ball bearing 8 and is embedded in the annular groove of the guide wheel housing 3 to prevent the bearing from shifting under axial load and to provide a buffering effect.

[0053] Please see Figure 5 In practical application, in a specific embodiment, the working state of this utility model is as follows:

[0054] During assembly, first fix the first mounting block 1 to the stacker crane base, then fit the guide wheel shaft 2 into the guide wheel housing 3 and install the deep groove ball bearing 8, and then limit it by the elastic retaining ring 7;

[0055] After the guide wheel shaft end cover plate 4 is fixed by the countersunk screw 6, the second mounting block 5 is aligned with the first mounting block 1 and the standard parts are locked to complete the installation of the horizontal guide wheel.

[0056] The guide wheel shaft 2 of this utility model has a three-section eccentric structure. The stress distribution between the shaft sections is optimized by the diameter increasing design, avoiding the stress concentration caused by the sudden change in diameter of the traditional two-section shaft, and improving the service life under heavy load conditions. At the same time, the guide wheel shaft 2 has a smooth shaft structure, which eliminates the need for thread machining. Combined with the installation block design of standard parts connection, it reduces production costs and maintenance complexity.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A horizontal guide wheel for a stacker crane, characterized in that, include: Guide wheel shaft (2), guide wheel housing (3), first mounting block (1) and second mounting block (5); The guide wheel shaft (2) is a three-section eccentric guide wheel shaft, and the top periphery of the guide wheel shaft (2) is fitted with the guide wheel housing (3). A deep groove ball bearing (8) is provided between the guide wheel shaft (2) and the guide wheel housing (3), and an elastic retaining ring (7) is provided at the bottom of the deep groove ball bearing (8). The top surface of the guide wheel shaft (2) is provided with a guide wheel shaft end cover plate (4), and the guide wheel shaft end cover plate (4) is fixed to the top surface of the guide wheel shaft (2) by countersunk screws (6); The first mounting block (1) is fixed on the stacker crane equipment, and the second mounting block (5) is arranged around the outside of the guide wheel shaft (2) with the first mounting block (1), and the first mounting block (1) and the second mounting block (5) are connected and fixed by standard parts.

2. The horizontal guide wheel for a stacker crane according to claim 1, characterized in that, The three-section eccentric structure of the guide wheel shaft (2) includes a first eccentric shaft section (21), a second eccentric shaft section (22), and a third eccentric shaft section (23) arranged sequentially in the vertical direction; The diameters of the first eccentric shaft segment (21), the second eccentric shaft segment (22), and the third eccentric shaft segment (23) increase at equal intervals according to the eccentricity distance.

3. The horizontal guide wheel for a stacker crane according to claim 2, characterized in that, The top of the first eccentric shaft section (21) is provided with a countersunk screw hole (24), and the countersunk screw (6) cooperates with the countersunk screw hole (24) to fix the guide wheel shaft end cover plate (4).

4. The horizontal guide wheel for a stacker crane according to claim 2, characterized in that, The diameter of the second eccentric shaft segment (22) is 1.5-2.5 mm larger than the diameter of the first eccentric shaft segment (21), and the diameter of the third eccentric shaft segment (23) is 1.5-2.5 mm larger than the diameter of the second eccentric shaft segment (22).

5. The horizontal guide wheel for a stacker crane according to claim 1, characterized in that, The elastic retaining ring (7) is located at the bottom of the deep groove ball bearing (8) and is embedded in the corresponding matching annular groove on the guide wheel housing (3).

6. The horizontal guide wheel for a stacker crane according to claim 1, characterized in that, The first mounting block (1) and the second mounting block (5) are connected and fixed by bolts or pins.

7. The horizontal guide wheel for a stacker crane according to claim 1, characterized in that, The guide wheel shaft (2) has an optical axis structure.

8. The horizontal guide wheel for a stacker crane according to claim 1, characterized in that, The inner wall of the guide wheel housing (3) is interference-fitted with the outer ring of the deep groove ball bearing (8).

9. The horizontal guide wheel for a stacker crane according to claim 1, characterized in that, The first mounting block (1) and the second mounting block (5) are respectively provided with a positioning boss and a groove on one side of the contact surface for assembly and alignment.

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