Stacker wheel offset adjustment tool

Abstract

The utility model discloses a kind of walking wheel deviation adjustment tools of stacking machine, it is related to walking wheel rectification technical field, and its technical scheme main point is: including base, symmetrically arranged side plate A and side plate B in the both sides of base, three enclose and form the movable slot for track adaptation and card into;Driving device is equipped on side plate A or side plate B corresponding movable slot position, base is provided with mounting hole for connecting walking wheel assembly. When using, base and walking wheel assembly are fixed by bolt, according to the direction of deviation, drive device is mounted on reverse side plate, and driving end is in contact with track and generates reaction force to drive walking wheel reset. The device is designed with modularization, without large hoisting equipment, one person can operate, solve the problem that traditional rectification mode is low in efficiency and poor in versatility, significantly improve the maintenance efficiency of stacking machine and reduce operating cost.

Description

Technical Field

[0001] This utility model relates to the field of walking wheel correction technology, and more specifically, it relates to a tool for adjusting the offset of walking wheels of a stacker crane. Background Technology

[0002] As a core piece of equipment in automated storage and retrieval systems (AS / RS), the running accuracy of the stacker crane's wheels directly determines the stability and throughput of the warehousing system. During long-term heavy-load operation, factors such as track wear, loose bolts, and load impacts can cause lateral misalignment of the wheels, leading to abnormal wheel-rail contact and increased running resistance. This not only exacerbates component wear but can also cause jamming, abnormal noises, and even derailment risks. Industry reports indicate that under traditional manual maintenance models, such misalignment issues result in an average fault recovery time of 4.2 hours for stacker cranes and a loss of approximately 15% in overall equipment efficiency (OEE), severely restricting the continuity of warehousing and logistics.

[0003] Existing alignment correction technologies require lifting the entire stacker crane off its tracks to achieve adjustment, but this method has significant limitations: equipment deployment requires substantial space and time, maintenance costs are high per operation, and the lifting process carries a risk of equipment collisions. Especially in confined warehouse spaces, the difficulty in accessing large equipment can lead to alignment correction operations lasting several days, severely impacting normal warehouse operations.

[0004] Another traditional approach relies on customized tooling and manual tools, which suffers from both limitations in versatility and precision. Existing tooling is often designed for specific stacker crane models, making it difficult to adapt to different sizes of wheels and tracks. This forces companies to maintain a variety of tooling, increasing management costs. Furthermore, when operating with manual pry bars or simple jacks, the external force output is difficult to control precisely, easily causing excessive wheel misalignment or insufficient repositioning, leading to secondary damage. Some solutions employ complex guide wheel devices, which can limit misalignment to some extent, but installation and disassembly are cumbersome, maintenance is inefficient, and they cannot meet the rapid response requirements of modern warehousing.

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a stacker crane traveling wheel offset adjustment tool. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stacker crane traveling wheel offset adjustment tool.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stacker crane traveling wheel offset adjustment tool, including a base, with side plates A and B respectively provided on both sides of the base, and a movable groove being formed between the base, the side plates A and B; A driving device is provided on the side plate A or the side plate B, and the driving device is positioned corresponding to the position of the movable slot. The driving end of the driving device can move to the position of the corresponding movable slot. The base has mounting holes for bolt connection.

[0008] Furthermore, the base is bolted to the walking wheel assembly, and the driving device includes a jack body and a hydraulic unit. The jack body is fixed to the side plate A or the side plate B by a fastener. The hydraulic unit is used to inject hydraulic oil into the jack body so that the driving end of the jack body abuts against the track. The reaction force causes the base to drive the walking wheel assembly to correct its deviation based on the track.

[0009] Furthermore, the jack body is mounted on side plate A or side plate B, which is opposite to the offset direction of the traveling wheel assembly.

[0010] Furthermore, the jack body is vertically mounted on the inner side of side plate A or side plate B by bolts. The top of the cylinder of the jack body is provided with an oil inlet and connector A. The oil inlet is used to inject hydraulic oil. The hydraulic unit provides hydraulic oil to the jack body and includes a hydraulic tank. The hydraulic tank is provided with a reciprocating wrench. The outlet of the hydraulic tank is connected to an oil pipe. The end of the oil pipe away from the hydraulic tank is connected to connector B. Connector A and connector B are connected and sealed by threaded engagement.

[0011] Furthermore, the movable groove is a recess formed on the base.

[0012] Furthermore, the height of side plate A and side plate B is higher than the upper surface of the base, and the top ends of side plate A and side plate B extend inward and beyond the edge of the base, forming the movable groove with the upper surface of the base.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This device revolutionizes the efficiency of alignment technology through modular design, completely eliminating reliance on large equipment. The core structure consists of a base, side plates, and a drive unit, making it lightweight and compact. It connects quickly to the wheel assembly via mounting holes in the base, allowing for assembly and operation by a single person. Compared to traditional hoisting methods, this device reduces alignment time from several days to hours, minimizing downtime and significantly reducing production losses. Simultaneously, it eliminates the cost of deploying large equipment, reduces spare parts requirements due to standardized component design, and lowers overall maintenance costs, making it particularly suitable for confined warehouse spaces. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the base structure of this utility model; Figure 2 This is a top view of the base structure in this utility model; Figure 3 This is a schematic diagram of the jack body structure in this utility model; Figure 4 This is a side view of the jack body in this utility model. Figure 5 This is a schematic diagram of the installation structure of the offset adjustment tool in this utility model.

[0015] 1. Base; 2. Side plate A; 3. Side plate B; 4. Jack body; 5. Connector A; 7. Fixing component; 8. Mounting hole; 9. Hydraulic tank; 10. Filler port; 12. Oil pipe; 13. Connector B; 14. Wrench; 15. Return oil switch; 16. Connection hole A; 17. Connection hole B; 18. Movable groove; 19. Track; 20. Traveling wheel assembly. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0018] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] This utility model provides a stacker crane traveling wheel offset adjustment tool, such as... Figure 1 As shown, the core components of the device include a fixing part, which serves as the load-bearing foundation for the entire correction mechanism. It mainly consists of a base 1, side plate A2, and side plate B3. The base 1 is made of high-strength metal and has good structural rigidity. Side plates A2 and B3 are fixed to its two sides by welding or bolting, respectively. The two are mirror-distributed with the central axis of the base 1 as the center of symmetry, forming a stable frame structure together.

[0022] The fixed part is provided with a movable groove 18, which can be designed in two feasible ways: one is to directly open a groove along the length direction in the middle of the base 1 to form a movable groove 18 corresponding to the track 19; the other is to make the height of the side plate A2 and the side plate B3 higher than the plane of the base 1, and extend the top of the two side plates inward and beyond the edge of the base 1, thus forming a movable groove 18 with the upper surface of the base 1. Both solutions can ensure that when the fixed part is installed on the track 19, the movable groove 18 can be fastened to the outside of the track 19, and a 5-10mm gap is reserved between the track 19 and the lower surface of the base 1, the inner side of the side plate A2 and the inner side of the side plate B3. This gap design can effectively avoid rigid interference during installation, and at the same time provide space for the slight displacement during the correction process of the traveling wheel. The base 1 has symmetrical mounting holes 8 on both sides, and the hole positions correspond precisely to the screw holes of the traveling wheel fixing bracket. By passing high-strength bolts through the mounting holes 8 and tightening them, the fixed part can be firmly assembled onto the traveling wheel assembly 20.

[0023] The device also includes a drive unit, which serves as the power source for the correction action. Its main structure has a connection hole B17 that matches the hole position on the side plate. Correspondingly, connection holes A16 are machined in the upper middle part of both side plates A2 and B3. Both connection holes A16 and B17 are internally threaded, and the drive unit can be detachably fixed to the fixed part through the threaded connection of fasteners 7 such as bolts. The drive unit can be a jack, including mechanical and hydraulic types. High-strength bolts are preferred for the fasteners 7 to ensure the shear resistance of the connection between the drive unit and the side plate. The installation position of the jack needs to be determined according to the direction of the travel wheel's offset: if the travel wheel offsets to the left, the jack is fixed to side plate B3; if it offsets to the right, it is fixed to side plate A2. That is, it is always installed on the side opposite to the offset direction to ensure that the direction of the correction force accurately corresponds to the adjustment requirements.

[0024] like Figure 5 As shown, after the fixing part and the drive device are installed, the jack is activated so that its drive end (piston rod) slowly extends and contacts the side of the track 19. Since the track 19 is fixedly connected to the ground and has sufficient resistance to deformation, the thrust applied by the jack will cause the track 19 to generate a reverse force. This reaction force is transmitted through the jack cylinder to the side plate, and then from the side plate to the base 1, ultimately driving the entire walking wheel assembly 20 to move in the direction of the reaction force, thereby resetting the originally offset walking wheel to the correction direction until the preset installation accuracy is achieved.

[0025] Considering ease of operation, power stability, and cost control, a hydraulic jack is preferred. It consists of two parts: the jack body 4 and the hydraulic unit. The jack body 4 is vertically mounted inside side plate A2 or side plate B3 via a fixing component 7. The top of the cylinder body has an oil inlet (for hydraulic oil injection) and a connector A5 (with an external thread design, compatible with oil pipe 12). The hydraulic unit, as the power supply unit, is responsible for supplying high-pressure hydraulic oil to the jack body 4 to drive the piston rod. Its core component is the hydraulic tank 9, made of high-pressure resistant alloy material. The top drive section has a reciprocating wrench 14, which uses leverage to pressurize and output the hydraulic oil. To facilitate efficient hydraulic oil transmission, the outlet of the hydraulic tank 9 is connected to connector B13 (internal thread design) via a pressure-resistant oil pipe 12. Connector B13 and connector A5 can be screwed together to achieve a sealed connection, ensuring no leakage during hydraulic oil transmission. During operation, repeatedly pressing the wrench 14 allows hydraulic oil from the hydraulic tank 9 to enter the jack body 4 through the oil pipe 12 and the oil inlet, pushing the piston rod to extend and contact the surface of the track 19, forming a stable corrective thrust. The structure of the hydraulic jack is existing technology and will not be described in detail here.

[0026] In addition, the hydraulic tank 9 also integrates two key auxiliary structures: one is the oil filling port 10 (equipped with a sealing cap) located on the top of the tank, which is used to replenish or replace hydraulic oil; the other is the return oil switch 15 installed at the connection between the oil pipe 12 and the tank, which controls the oil circuit opening and closing by rotating the valve core - rotating clockwise closes the oil circuit to ensure that hydraulic oil is only delivered to the jack body 4 during pressurization; rotating counterclockwise opens the oil circuit, allowing the hydraulic oil in the jack body 4 to flow back to the hydraulic tank 9, thereby achieving piston rod reset.

[0027] When the stacker crane's traveling wheels become misaligned and need adjustment, the specific operating procedure is as follows: Preparation stage: Check the hydraulic oil level in hydraulic tank 9. If it is below the scale line, add anti-wear hydraulic oil of the correct specifications through filler port 10, and ensure that the oil is clean and free of impurities. Installation of the fixed part: Remove the fastening bolts on the traveling wheel fixing bracket of the stacker crane, place the fixed part above the traveling rail 19, make the movable groove 18 precisely aligned with the side of the rail 19, and then use bolts to re-tighten the base 1 and the traveling wheel fixing bracket to ensure that the connection is not loose; Drive unit installation: Determine the direction of the travel wheel offset using a dial indicator or laser positioning instrument, install the hydraulic jack body 4 on the reverse side plate using the fixing part 7, and tighten the bolts to the specified torque; Hydraulic system connection: Align connector A5 and connector B13 and screw them together until they feel tight, then turn them 1 / 3 turn to ensure a reliable seal; Correction operation: Tighten the return oil switch 15 clockwise, press the hydraulic tank 9 and wrench 14 alternately with both hands, observe the jack piston rod slowly extend and contact the track 19; continue to pressurize until the traveling wheel begins to move slightly, monitor the offset in real time with a dial indicator, until the axis of the traveling wheel coincides with the center line of the track 19; Reset and completion: After the correction is completed, slowly loosen the return oil switch 15 counterclockwise so that the piston rod is reset under the action of the spring force and the hydraulic oil flows back to the hydraulic tank 9; remove the oil pipe 12 connector, jack and fixing parts in sequence, and tighten the original bolts of the traveling wheel to complete the entire adjustment work.

[0028] This device achieves rapid correction of the stacker crane's traveling wheels through modular design. The operation process does not require large hoisting equipment and can be completed by a single person, greatly improving equipment maintenance efficiency.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A stacker crane traveling wheel offset adjustment tool, applied to the traveling wheels of a stacker crane, characterized in that: Includes a base (1), on which side plates A (2) and B (3) are respectively provided, and a movable groove (18) is formed between the base (1), the side plate A (2) and the side plate B (3); A driving device is provided on the side plate A (2) or the side plate B (3), and the driving device is positioned corresponding to the position of the movable slot (18). The driving end of the driving device can move to the position of the corresponding movable slot (18). The base (1) has mounting holes (8) for bolt connection.

2. The stacker crane traveling wheel offset adjustment tool according to claim 1, characterized in that: The base (1) is bolted to the walking wheel assembly (20). The driving device includes a jack body (4) and a hydraulic unit. The jack body (4) is mounted on the side plate A (2) or the side plate B (3) by a fastener (7). The hydraulic unit is used to inject hydraulic oil into the jack body (4) so ​​that the driving end of the jack body (4) abuts against the track (19). The reaction force causes the base (1) to drive the walking wheel assembly (20) to correct its course based on the track (19).

3. The stacker crane traveling wheel offset adjustment tool according to claim 2, characterized in that: The jack body (4) is mounted on side plate A (2) or side plate B (3) opposite to the offset direction of the walking wheel assembly (20).

4. The stacker crane traveling wheel offset adjustment tool according to claim 3, characterized in that: The jack body (4) is vertically mounted on the inner side of the side plate A (2) or the side plate B (3) by bolts. The top of the cylinder of the jack body (4) is provided with an oil inlet and a connector A (5). The oil inlet is used to inject hydraulic oil. The hydraulic unit provides hydraulic oil to the jack body (4) and includes a hydraulic tank (9). The hydraulic tank (9) is provided with a reciprocating wrench (14). The outlet of the hydraulic tank (9) is connected to an oil pipe (12). The end of the oil pipe (12) away from the hydraulic tank (9) is connected to a connector B (13). The connector A (5) and the connector B (13) are connected by a threaded connection for sealing.

5. The stacker crane traveling wheel offset adjustment tool according to claim 1, characterized in that: The movable groove (18) is a groove formed on the base (1).

6. The stacker crane traveling wheel offset adjustment tool according to claim 1, characterized in that: The height of the side plate A (2) and the side plate B (3) is higher than the upper surface of the base (1). The top of the side plate A (2) and the side plate B (3) extends inward and beyond the edge of the base (1), forming the movable groove (18) with the upper surface of the base (1).

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