A noise reduction technology for walking wheels

Abstract

This invention relates to the field of track-mounted walking systems, specifically to a noise reduction process for walking wheels, comprising the following steps: measuring the mass distribution of the walking wheels; after determining the location and magnitude of the imbalance, removing weight from the imbalanced location or adding corresponding weight in the symmetrical direction. Compared to existing technologies, this invention employs a method of measuring the weight distribution of the walking wheels, and eliminates the imbalance by removing or adding weight after confirming it. This overcomes the technical bias of those skilled in the art who only consider noise caused by walking wheels, guide rail wear, and bearing failure, and is therefore inventive.

Description

Technical Field

[0001] This invention relates to the field of track-mounted walking systems, and more specifically to a noise reduction process for walking wheels. Background Technology

[0002] A stacker crane is a mechanical device used for stacking goods. Its walking system enables the stacker crane to move freely on the ground and find a place to place goods. The walking system usually has one or two steel rails to support the entire equipment, and two or four wheels connected to the steel rails to provide power.

[0003] Sometimes the wheels make noise, which is usually caused by the following reasons:

[0004] During the use of a stacker crane, the wheels often wear down due to prolonged operation; when the wheels wear down to a certain extent, abnormal noises may occur.

[0005] Bearing failure can be caused by factors such as the expiration of its service life, improper assembly, or the entry of dust, moisture, etc. into the bearing. When a bearing fails, it can also cause abnormal noises.

[0006] The guide rails of stacker cranes often wear out during operation, and may even be bent or broken; damaged guide rails can also cause abnormal noises from the traveling wheels.

[0007] However, sometimes abnormal noises still occur after checking the above causes, especially in new machines where there is no wear on the wheels and guide rails, which is very troubling for manufacturers. Summary of the Invention

[0008] In view of the above, the purpose of this invention is to provide a noise reduction process for walking wheels to address the existing problems.

[0009] To achieve the above objectives, the noise reduction process for the walking wheel of the present invention includes the following steps:

[0010] A. Measure the mass distribution of the traveling wheels;

[0011] B. After determining the location and magnitude of the imbalance, remove the weight from the imbalanced area or add a corresponding weight in the symmetrical direction.

[0012] Specifically, because the wheels bear the weight of the entire machine, they are mostly made of solid metal castings to improve durability and load-bearing capacity. Therefore, adding counterweights generally refers to attaching counterweights to the sides of the wheels, while removing counterweights generally refers to grinding away some metal from the sides of the wheels.

[0013] Compared with the prior art, the present invention adopts a method of measuring the weight distribution of the traveling wheels, and after confirming the weight imbalance, it eliminates the imbalance by removing and adding weight, thereby breaking the technical prejudice of those skilled in the art that only considers abnormal noise caused by the wear of traveling wheels and guide rails and bearing failure.

[0014] The noise reduction technology for the walking wheels of this invention can solve the problem of abnormal noise caused by the imbalance of the walking wheels after eliminating the imbalance of the walking wheels' weight.

[0015] As an optional solution of the present invention, the method for measuring the mass distribution of the walking wheel includes the following steps:

[0016] A1. Use tools to remove the nuts securing the wheels;

[0017] A2. Pull the axle away axially;

[0018] A3. Remove the wheels and install them on a dynamic balancing measuring device to measure the mass distribution of the wheels.

[0019] As mentioned above, the mass distribution of the traveling wheel can be measured relatively easily using existing dynamic balancing measurement equipment; however, it is undeniable that the process is quite cumbersome and laborious because the traveling wheel needs to be disassembled.

[0020] Therefore, as another object of the present invention, the present invention aims to provide a measuring component that can measure the mass distribution of a walking wheel without disassembling the walking wheel, the measuring component comprising:

[0021] The main body is detachably connected to the traveling wheel. The main body is ring-shaped and has several guide members distributed at equal angles on its exterior. The guide members guide in the same radial direction as the main body. Movable parts are installed on the guide members. In the measurement state, the main body is concentrically installed on the side of the traveling wheel. All movable parts are adjusted to the position closest to the center of the traveling wheel. Then, the stacker crane is run and the traveling wheel rotates. Under the action of centrifugal force, the movable parts on each guide member move away from the center of the traveling wheel. If the moving distance of the movable parts is different, the mass is unbalanced.

[0022] This measuring component allows for mass distribution testing of the wheels without disassembly. More importantly, since the wheels are integrated with the axles, bearings, and other components, the overall mass distribution can be measured without disassembly. Furthermore, the weight reduction / reinforcement after measurement is applied to the entire system, resulting in better overall balance, more stable wheel rotation, and reduced noise. It also facilitates easier re-inspection after weight reduction / reinforcement.

[0023] As another objective of the present invention, the present invention aims to provide an imbalance elimination component for a walking wheel, the imbalance elimination component comprising a plurality of perforations distributed at equal angles around the center of the walking wheel, and a counterweight, the counterweight being installed on the perforations in a symmetrical direction according to the position of the imbalance.

[0024] With this imbalance-eliminating component and the perforated design, mass distribution imbalance can be eliminated more easily, and the number and / or weight of the counterweights can be selected for more precise elimination of mass distribution imbalance. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the cooperation and rotation between the measuring component and the traveling wheel of the present invention;

[0026] Figure 2 This is a front view schematic diagram of the cooperation and rotation state between the measuring component and the traveling wheel of the present invention;

[0027] Figure 3 This is a side view of the measuring component and the traveling wheel in the rotating state of the present invention;

[0028] Figure 4 This is a schematic diagram of the assembly structure of the measuring component and the traveling wheel of the present invention;

[0029] Figure 5 This is a schematic diagram of the assembly structure of the imbalance elimination component and the traveling wheel of the present invention;

[0030] Figure reference numerals: 100 for the traveling wheel, 101 for point A, 102 for the inner side, 103 for the outer side, 200 for the measuring component, 201 for the main body, 202 for the guide component, 203 for the moving component, 204 for the stop ring, 205 for the fixing bolt, 300 for the imbalance elimination component, 301 for the perforation, and 302 for the counterweight. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The noise reduction process for the walking wheel of the present invention includes the following steps:

[0033] A. Measure the mass distribution of the traveling wheel 100;

[0034] B. After determining the location and magnitude of the imbalance, remove the weight from the imbalanced area or add a corresponding weight in the symmetrical direction.

[0035] Specifically, because the traveling wheels 100 bear the weight of the entire machine, they are mostly made of solid metal castings to improve durability and load-bearing capacity. Therefore, adding counterweights generally refers to attaching counterweights to the sides of the traveling wheels 100, while removing counterweights generally refers to grinding away some metal from the sides of the traveling wheels 100.

[0036] As one embodiment of the present invention, the method for measuring the mass distribution of the traveling wheel 100 includes the following steps:

[0037] A1. Use tools to remove the nuts securing the travel wheel 100;

[0038] A2. Pull the axle away axially;

[0039] A3. Take out the walking wheel 100 and install it on the dynamic balancing measuring equipment to measure the mass distribution of the walking wheel 100.

[0040] As mentioned above, the mass distribution of the traveling wheel 100 can be measured relatively easily using existing dynamic balancing measurement equipment; however, the process is quite cumbersome and laborious because the traveling wheel 100 needs to be disassembled.

[0041] Therefore, referring to Figures 1 to 4 This embodiment also provides a measuring component 200, which includes:

[0042] A main body 201 is detachably connected to the traveling wheel 100. The main body 201 is annular and has several guide members 202 distributed at equal angles on its exterior. The guide members 202 have the same radial direction as the main body 201. Movable members 203 are installed on the guide members 202. The movable members 203 and the guide members 202 have a certain frictional force, which allows the movable members 203 to remain stationary when the traveling wheel 100 is static. However, when the traveling wheel 100 is rotating, the movable members 203 can move along the guide members 202 under the action of centrifugal force. Specifically, in the measurement state, the main body 201 is concentrically installed on the side of the traveling wheel 100, and all movable members 203 are adjusted to the position closest to the center of the traveling wheel 100. Then, the stacker crane is run, the traveling wheel 100 rotates, and under the action of centrifugal force, the movable members 203 on each guide member 202 move away from the center of the traveling wheel 100. After the stacker crane stops and the traveling wheel 100 remains stationary, if the movable members 203 have moved different distances, the mass is unbalanced.

[0043] It should be noted that the measuring component 200 is usually installed in pairs, one on each side of the traveling wheel 100, and the other on one side, for example... Figure 2 If the moving distance of the movable part 203 at point A 101 is relatively large, it indicates that the mass of point A 101 is too heavy; by comparing the moving distances of the movable parts 203 on both sides, it can be determined whether the inner side 102 and the outer side 103 are unbalanced.

[0044] The presence of this measuring component 200 allows for mass distribution testing of the traveling wheel 100 without disassembly. More importantly, since the traveling wheel 100 forms an integral unit with components such as the axle and bearings, the inability to disassemble it allows for testing of the overall mass distribution. Furthermore, the subsequent weight reduction / addition is also applied to the entire unit, undoubtedly resulting in better overall balance and more stable rotation of the traveling wheel 100, preventing abnormal noises. As mentioned above, while removing the traveling wheel 100 and measuring it on a dynamic balancing device can also yield its mass distribution, the measured mass distribution after disassembly may not match the actual working condition. This could lead to an inability to eliminate imbalances even after reassembly. Therefore, the measuring component 200 is preferred for testing. Moreover, after testing with the measuring component 200, re-inspection is more convenient after weight reduction / addition.

[0045] Reference Figure 5 This embodiment also provides an imbalance elimination component 300, which includes a plurality of perforations 301 evenly distributed around the center of the traveling wheel 100, and a counterweight 302. The counterweight 302 is installed on the perforations 301 in a symmetrical direction according to the position of the imbalance. With the cooperation of this imbalance elimination component 300 and the perforations 301, the imbalance of mass distribution can be eliminated more conveniently, and the number and / or weight of the counterweights 302 are selectable, which can eliminate the imbalance of mass distribution more accurately.

[0046] As an alternative implementation, the perforation 301 is a smooth hole, and the counterweight 302 is made of an elastic material, such as rubber, so that the counterweight 302 can be inserted into the perforation 301 and kept in a fixed position. For example, when the inner side 102 and the outer side 103 are unbalanced, the position of the counterweight 302 in the perforation 301 can be adjusted to achieve balance, and the elasticity and the smooth hole form an interference fit to keep it in a fixed position in the perforation 301.

[0047] It should be noted that the measuring component 200 in this embodiment has a fixing bolt 205 on the back of its main body 201. The fixing bolt 205 is made of an elastic material, such as rubber. In the measuring state, the main body 201 can be fixed on the walking wheel 100 by relying on the fixing bolt 205 on the back to insert into the mounting hole and form an interference fit with it.

[0048] It should be further explained that the guide member 202 on the main body 201 can be integrally molded with the main body 201 and made of rubber injection molding. The guide member 202 is a columnar body with stop rings 204 at both ends. The movable member 203 is a C-shaped metal part. The movable member 203 is stuck on the guide member 202. The movable member 203 can maintain a certain friction force by relying on the relatively rough surface of the rubber and the elastic clamping force of the C-shaped movable member 203 itself, so that the movable member 203 remains stationary when the traveling wheel 100 is static.

[0049] In a preferred embodiment, the perforation 301 is a threaded hole. Using a threaded hole allows for flexibility in the material of the counterweight 302. If it's made of rubber, it can be directly screwed into the perforation 301 without threads. If it's made of metal, threads need to be provided on the outside of the counterweight 302. Regardless of the material, using a threaded hole in the perforation 301 offers the advantage of more precise adjustment of the counterweight 302 within the perforation 301, resulting in higher balance accuracy. Furthermore, using a threaded hole in the perforation 301 makes the fixing bolt 205 on the back of the main body 201 of the measuring component 200 more secure, thus making the measuring component 200 more robust.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction technology for walking wheels, characterized in that, Includes the following steps: A. Measure the mass distribution of the traveling wheel (100); B. After measuring the location and magnitude of the imbalance, remove the weight from the imbalanced area or add a corresponding weight in the symmetrical direction; In step A, the mass distribution measurement method of the traveling wheel (100) is to perform on-site measurement of the traveling wheel (100) using a measuring component (200); the measuring component (200) includes: The main body (201) is detachably connected to the walking wheel (100). The main body (201) is annular and has several guide members (202) distributed at equal angles on its exterior. The guide members (202) are guided in the same direction as the radial direction of the main body (201). A movable member (203) is installed on the guide member (202). The movable member (203) and the guide member (202) have friction. The friction can keep the movable member (203) stationary when the walking wheel (100) is static. However, the movable member (203) can move along the guide member (202) under the action of centrifugal force when the walking wheel (100) is rotating.

2. The noise reduction technology for a walking wheel according to claim 1, characterized in that, In step B, adding counterweight involves attaching counterweights to the side of the walking wheel (100), while removing counterweight involves grinding away some metal from the side of the walking wheel (100).

3. The noise reduction process for a walking wheel according to claim 1, characterized in that, In step B, after measuring the location and magnitude of the imbalance, a counterweight is added through the imbalance elimination component (300) to eliminate the imbalance; The imbalance elimination component (300) includes a plurality of perforations (301) distributed at equal angles around the center of the walking wheel (100) and a counterweight (302). The counterweight (302) is selected according to the position and size of the imbalance and the corresponding weight / or number of counterweights (302) are installed on the perforations (301) in the symmetrical direction.

4. The noise reduction process for a walking wheel according to claim 3, characterized in that, The perforation (301) is a smooth hole, and the counterweight (302) is made of rubber. The counterweight (302) and the perforation (301) form an interference fit.

5. The noise reduction process for a walking wheel according to claim 3, characterized in that, The perforation (301) is a threaded hole, and the counterweight (302) is screwed to the perforation (301).

6. A noise reduction process for a walking wheel according to claim 4 or 5, characterized in that, The main body (201) has a fixing bolt (205) on its back, which is made of elastic material. In the measurement state, the main body (201) is fixed to the walking wheel (100) by inserting the fixing bolt (205) on its back into the mounting hole and forming an interference fit with it.

7. The noise reduction process for a walking wheel according to claim 6, characterized in that, The guide (202) on the main body (201) is integrally formed with the main body (201). The guide (202) is a columnar body with stop rings (204) at its front and rear ends. The movable part (203) is a C-shaped metal part that is stuck on the guide (202).

Images