A spoke wheel dynamic balancing testing device

Abstract

This invention relates to the field of wheel rim testing technology, specifically disclosing a spoke wheel dynamic balancing testing device, including a base and a shaft frame. The base is equipped with a roundness testing unit, a dynamic balancing testing unit, a processor terminal, and a display. Both the roundness testing unit and the dynamic balancing testing unit are electrically connected to the processor terminal. A vertical plate is fixed to the base, and a rotating shaft is rotatably mounted on the vertical plate. A drive assembly is mounted on the vertical plate to achieve rotation of the shaft and instantaneously release its rotation. A force-applying arm is connected to the end of the shaft, and a clamping assembly for clamping the spoke wheel is mounted at the end of the force-applying arm. The spoke wheel dynamic balancing testing device disclosed in this invention effectively solves the problem that existing testing methods rely on manual rotation of the spoke wheel, which cannot guarantee consistent rotation speed. It effectively ensures the accuracy of data during dynamic measurement of the spoke wheel, and eliminates the need for manual recording during the testing process, facilitating subsequent data retrieval by relevant personnel.

Description

Technical Field

[0001] This invention relates to the field of wheel rim testing technology, and specifically discloses a spoke wheel dynamic balance testing device. Background Technology

[0002] Spoke wheels are an important component of bicycles, assembled from parts such as the rim, hub, and spokes. During the manufacturing process, workers connect the ends of multiple spokes to the rim and hub. After the spoke wheel is assembled, dynamic balancing and roundness checks are performed to ensure its quality and performance. These checks require the use of appropriate testing equipment.

[0003] For example, utility model patent application number 2022223113697 discloses a bicycle spoke wheel testing device, including a base, with a left slot frame and a right slot frame vertically connected at intervals on the base. A fixed shaft is connected to the left slot frame, and the inner end of the fixed shaft is connected to a fixed shaft cylinder through a fixed bearing. A threaded sleeve is connected inside the slot of the right slot frame, and a lead screw is fitted inside the threaded sleeve. The inner end of the lead screw passes through the right slot frame, and its end is connected to the right shaft cylinder through a right bearing. The inner end of the lead screw is fitted inside the inner end of a support shaft, and the outer end of the support shaft is connected to a vertical frame. A rotating wheel is fitted on the outer end of the lead screw. A sliding frame is slidably set on one side of the right slot frame, and a testing gauge is set on the sliding frame. In the process of testing the spoke wheel, the two ends of the wheel axle are inserted into the positioning cylinders of the two vertical frames. Then, the tester holds the rotating ring handle, causing it to rotate, which in turn drives the spoke wheel in the two positioning cylinders to rotate. During the rotation of the spoke wheel, the data of the dynamic detection of the wheel is read by the testing gauge. While this testing device can perform dynamic testing of wheels, it has some shortcomings in testing spoked wheels. Firstly, because the spokes are manually rotated during use, it cannot guarantee consistent rotation speed for each dynamic test, and this rotation speed significantly affects the test results. Secondly, existing testing devices rely on manual reading and recording of data from a measurement table during dynamic testing of spoked wheels, failing to automatically record and store data. This prevents inspectors from reviewing the test results of the same batch of spoked wheels afterward, hindering analysis of problems in the upstream processes. Therefore, to address the technical problems mentioned in the background section of existing bicycle spoked wheel testing devices, this application designs a spoked wheel dynamic balancing testing device that effectively solves these problems. Summary of the Invention

[0004] The present invention aims to provide a spoke wheel dynamic balance detection device to solve two technical problems raised in the background art of existing bicycle spoke wheel detection devices.

[0005] This invention is achieved through the following technical solution:

[0006] A spoke wheel dynamic balancing detection device includes a base and a shaft frame. The base is equipped with a roundness detection unit, a dynamic balancing detection unit, a processor terminal, and a display. The roundness detection unit and the dynamic balancing detection unit are both electrically connected to the processor terminal.

[0007] A vertical plate is fixed on a base located on one side of the shaft frame. A rotating shaft is rotatably mounted on the vertical plate, which is aligned with the axle of the spoke wheel on the shaft frame. A drive assembly is mounted on the vertical plate to enable the rotating shaft to rotate and instantly release its rotation. A force arm is connected to the end of the rotating shaft. A clamping assembly for clamping the spoke wheel is mounted at the end of the force arm. The clamping assembly includes a U-shaped plate. Movable rods extend through both sides of the U-shaped plate. Clamping plates are mounted at the inner ends of the two movable rods. Magnetic blocks are mounted at the outer ends of the two movable rods. A fourth spring connects the clamping plates to the sides of the U-shaped plate.

[0008] An arc-shaped frame is fixed on the base located on the rear side of the two shaft frames. An arc-shaped magnetic strip is installed on the opposite side of the two arc-shaped frames. The arc-shaped magnetic strip is aligned with the path of the magnetic block as it rotates with the force arm, and the magnetic properties of the ends of the arc-shaped magnetic strip and the magnetic block that are close to each other are opposite.

[0009] As a further provision of the above solution, the drive assembly includes a slide rail mounted on the upright plate, a moving bar mounted on the slide rail, a toothed surface on the moving bar and a third spring connected at one end to the upright plate, a power motor mounted on the upright plate, a notched gear on the motor shaft of the power motor meshing with the toothed surface of the moving bar, and a gear on the rotating shaft meshing with the toothed surface of the moving bar.

[0010] As a further feature of the above scheme, the upper and lower ends of the moving bar are provided with toothed surfaces, the notched gear meshes with the upper toothed surface of the moving bar, and the gear meshes with the lower toothed surface of the moving bar.

[0011] As a further feature of the above scheme, an arc-shaped groove is provided between the opposite sides of the two arc-shaped frames, and the arc-shaped magnetic strip is installed in the arc-shaped magnetic strip through a bolt connection assembly. An arc-shaped mounting port that interacts with the bolt connection assembly is provided on the arc-shaped frame.

[0012] As a further provision of the above scheme, the roundness detection unit includes a vertical cylinder fixed directly below the spoke wheel. A first pressure sensor is provided at the lower end of the vertical cylinder, and a lifting rod is inserted into the upper end of the vertical cylinder. An abutment wheel that abuts against the spoke wheel is provided at the upper end of the lifting rod, and a limiting end block located in the vertical cylinder is connected at the lower end. A first spring is provided between the limiting end block and the first pressure sensor.

[0013] As a further feature of the above scheme, the dynamic balancing detection unit includes a base block with two symmetrical side plates. A second pressure sensor is provided on each of the opposite sides of the two side plates. A second spring is connected to the second pressure sensor, and an arc-shaped plate is connected to the end of the second spring. A ball bearing is movably embedded on the side of the arc-shaped plate near the spoke wheel.

[0014] As a further feature of the above scheme, the arc-shaped plate is provided with a guide rod perpendicular to the side plate, and the side plate is provided with a circular hole that matches the guide rod.

[0015] As a further feature of the above scheme, the processor terminal is internally equipped with a processing module and a storage module.

[0016] The spoke wheel dynamic balancing detection device disclosed in this invention detects the roundness and dynamic balance of the spoke wheel by rotating the spoke wheel on the upper end of the axle frame. During the rotation of the spoke wheel, it acts on the abutment wheel in the roundness detection unit and the ball bearing in the dynamic balancing detection unit. The detection process is then converted into a pressure signal value transmitted to the pressure sensor, and the detected pressure signal value is displayed and recorded in real time on the display.

[0017] In addition, during the dynamic balancing test of the spoked wheel, the spoked wheel axle is first placed on the upper end of the axle holder. At this time, the clamping assembly is located at the lower end and opens under the action of the arc-shaped magnetic strip, allowing the lower end of the spoked wheel to be positioned in the clamping assembly. Then, the power motor in the drive assembly is started. Under the action of the notched gear and the upper tooth surface of the moving bar, and the lower tooth surface of the moving bar and the gear, the rotating shaft begins to rotate, which in turn causes the force arm and the clamping assembly to rotate upward. When the clamping assembly leaves the position opposite to the arc-shaped magnetic strip, it clamps the spoked wheel under the action of the fourth spring.

[0018] When the clamping assembly moves to its highest point, the notched gear slips off the upper tooth surface of the moving bar. Then, under the action of the third spring, the moving bar will move back quickly and instantaneously. During the movement, the meshing action between the gear and the lower tooth surface of the moving bar will cause the force arm to rotate downward rapidly. Through the action of the clamping assembly, the spoke wheel will obtain sufficient kinetic energy to rotate downward. After the clamping assembly rotates to the position opposite to the arc-shaped magnetic strip, the force on the spoke wheel will be removed. At this time, the spoke wheel will continue to rotate under the action of inertia. Then, the roundness detection unit and the dynamic balance detection unit will detect the spoke wheel that rotates by inertia, and process, store and display the detection data in real time for easy reading by the inspection personnel. Beneficial effects

[0019] The spoke wheel dynamic balancing testing device disclosed in this invention, through the structural design of a drive component, a force-applying arm, a clamping component, and an arc-shaped magnetic strip, can automatically apply force to the spoke wheels on the axle frame during the testing process, so that all spoke wheels to be tested can obtain the same kinetic energy to achieve their own rotation. Then, the testing of the spoke wheels is completed during the rotation process. It effectively solves the problem that existing testing relies on manual rotation of the spoke wheels, which cannot guarantee the consistency of their rotation speed, and effectively ensures the accuracy of the data during the dynamic measurement of the spoke wheels.

[0020] The spoke wheel dynamic balancing detection device disclosed in this invention also changes the traditional method of detecting spoke wheels by relying on measuring instruments. It uses the abutment wheel in the roundness detection unit and the ball bearing in the dynamic balancing detection unit to interact with the spoke wheel, and then converts the detection force into a pressure signal value transmitted to the pressure sensor. The detected pressure signal value is then displayed and recorded in real time on the display, eliminating the need for manual recording and facilitating subsequent data retrieval by relevant personnel. Its performance is excellent. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0023] Figure 2 This is a schematic diagram of the second-angle three-dimensional structure of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the central shaft frame, arc frame, roundness detection unit, etc. of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the roundness detection unit in this invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the dynamic balance detection unit in this invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the upright plate, moving bar, gear, etc. in this invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the lever arm, clamping components, etc. in this invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-7 This application will be described in detail with reference to the embodiments. Example 1

[0031] Example 1 discloses a spoke wheel dynamic balancing detection device, see attached figure. Figure 1 Appendix Figure 2 and attached Figure 3 The main body of the testing device includes a base 1, a roundness testing unit 2, a dynamic balance testing unit 3, a processor terminal 4, and a display 5. Two symmetrically arranged axle brackets 6 are welded to the upper surface of the base 1, and V-shaped axle support grooves 601 are opened at the top of the two axle brackets 6, so that when testing the spoked wheel 100, the two ends of the axle of the spoked wheel 100 can be placed in the axle support grooves 601.

[0032] Reference Appendix Figure 3 and attached Figure 4 The roundness detection unit 2 includes a vertical cylinder 201 fixedly disposed directly below the spoke wheel 100. A first pressure sensor 202 is disposed at the lower end of the vertical cylinder 201 and is electrically connected to the processor terminal 4 via a data cable, so that the pressure signal value of the first pressure sensor 202 can be transmitted to the processor terminal 4 in real time. A lifting rod 203 is inserted into the upper end of the vertical cylinder 201, and an abutting wheel 204 abutting against the circumferential surface of the spoke wheel 100 is connected to the top of the lifting rod 203. A limiting end block 205 is connected to the lower end of the lifting rod 203 located inside the vertical cylinder 201, and a first spring 206 is connected between the limiting end block 205 and the first pressure sensor 202.

[0033] Reference Appendix Figure 3 and attached Figure 5The dynamic balancing detection unit 3 includes a base block 301, with side plates 302 fixed at both ends of the upper surface of the base block 301, and the two side plates 302 are located on both sides of the spoke wheel 100. Second pressure sensors 303 are fixedly mounted on the opposite sides of the two side plates 302, and the second sensors 303 are also electrically connected to the processor terminal 4. A second spring 304 is connected to each second pressure sensor 303, and an arc-shaped plate 305 is connected to the end of the second spring 304. Multiple ball bearings 306 are movably embedded on the side of the arc-shaped plate 305 near the spoke wheel 100. Additionally, a guide rod 307 perpendicular to the side plate 302 is provided on the arc-shaped plate 305, and a circular hole matching the guide rod 307 is provided on the side plate 302.

[0034] In this embodiment, the processor terminal 4 is equipped with a processing module that processes the pressure signal values ​​transmitted from the first pressure sensor 202 and the second pressure sensor 303. It is also equipped with a corresponding storage module. During the spoke wheel dynamic balancing test, the data processed by the processing module can be displayed on the display 5, and the test data of all spoke wheels can be retrieved through the display 5 for the operator to read. Example 2

[0035] Example 2 discloses a spoke wheel dynamic balance testing device that is an improved design based on Example 1. The similarities between it and Example 1 will not be described again.

[0036] Reference Appendix Figure 1 Appendix Figure 2 and attached Figure 6 A vertical plate 7 is fixed on the upper surface of the base 1 on one side of the shaft frame 6. The vertical plate 7 is set parallel to the spoke wheel 100 during the test. A bearing 701 is set at a position where the axle on the vertical plate 7 and the spoke wheel 100 are in the same straight line. A rotating shaft 702 is rotatably connected in the bearing 701. A gear 703 is set on the rotating shaft 702. A force-applying arm 704 is connected to one end of the rotating shaft 702 near the shaft frame 6. Then, a clamping assembly 8 is set at the end of the force-applying arm 704 to clamp the spoke wheel 100.

[0037] A slide rail 705 is provided on the vertical plate 7 located on the same side as the gear 703. A moving bar 706 is slidably mounted on the slide rail 705. Both the upper and lower surfaces of the moving bar 706 are provided with toothed surfaces 7061, and the toothed surfaces 7061 at the lower end of the moving bar 706 mesh with the gear 703. A power motor 707 is fixedly mounted on the vertical plate 7. A notched gear 708 is connected to the motor shaft of the power motor 707, and the notched gear 708 meshes with the toothed surfaces 7061 at the upper end of the moving bar 706. In addition, a third spring 709 is connected to one end of the moving bar 706, and the end of the third spring 709 is connected to an end block 710 on the vertical plate 7.

[0038] During operation, the start-up motor 707 causes the notched gear 708 to rotate. The meshing between the notched gear 708 and the upper tooth surface 7061 of the moving bar 706 causes the moving bar 706 to move along the slide rail 705. During this movement, the meshing between the lower tooth surface 7061 and the gear 703 causes the rotating shaft 702 to rotate, thereby causing the force-applying arm 704 to rotate upwards. When the notched gear 708 slips off the upper tooth surface 7061 of the moving bar 706, the force of the third spring 709 causes the moving bar 706 to move in the opposite direction, thus driving the force-applying arm 704 to rotate rapidly downwards.

[0039] Reference Appendix Figure 3 and attached Figure 7 The clamping assembly 8 includes a U-shaped plate 801 connected to the end of the force-applying arm 704, with the open end of the U-shaped plate 801 extending into the spoke wheel 100. Movable rods 802 are provided through both sides of the U-shaped plate 801, and clamping pieces 803 are connected to the ends of the two movable rods 802 that extend into the U-shaped plate 801, with the two clamping pieces 803 located on opposite sides of the spoke wheel 100. Magnetic blocks 804 are connected to the outer ends of the two movable rods 802 extending from the U-shaped plate 801, and a fourth spring 805 is connected between the clamping pieces 803 and the U-shaped plate 801. Under the action of the fourth spring 805, the two clamping pieces 803 can clamp the two ends of the spoke wheel 100, allowing the spoke wheel 100 to rotate together with the force-applying arm 704.

[0040] An arc-shaped frame 900 is fixed on the upper surface of the base 1 on the rear side of each shaft frame 6. An arc-shaped groove is opened on the opposite side of the two arc-shaped frames 900. An arc-shaped magnetic strip 901 is installed in each arc-shaped groove. The arc-shaped magnetic strip 901 is aligned with the arc-shaped path of the magnetic block 804 as it rotates with the force arm 704. The sides of the arc-shaped magnetic strip 901 and the magnetic block 804 that are close to each other are magnetically opposite.

[0041] When the lever arm 704 rotates to the upper end of the spoke wheel 100, the two clamping plates 803 in the clamping assembly 8 clamp the upper end of the spoke wheel 100 under the action of the fourth spring 805. When the notched gear 708 slips off from the moving bar 706, causing the lever arm 704 to rotate downwards instantaneously, the spoke wheel 100 will rotate synchronously with the lever arm 704, thereby gaining the kinetic energy to achieve its own rotation. Once the clamping assembly 8 moves between the two arc-shaped magnetic strips 901, the magnetic block 804 will be attracted and moved outwards under the action of magnetic force, and the magnetic attraction can overcome the clamping force of the fourth spring 805, so that the clamping effect of the clamping assembly 8 on the spoke wheel 100 disappears, allowing the spoke wheel 100 to obtain a stable dynamic balance test speed.

[0042] In addition, to properly adjust the dynamic balance test speed obtained by the spoke wheel 100, an arc-shaped mounting port 902 is provided on the outer side of the arc-shaped frame 900, and a bolt connection assembly 903 for fastening the arc-shaped magnetic strip 901 is provided in the arc-shaped mounting port 902. When a higher speed of the spoke wheel 100 is required, the arc-shaped magnetic strip 901 is rotated downward along the arc groove on the arc-shaped frame 900, the upper end position of the arc-shaped magnetic strip 901 is adjusted to a suitable point, and then it is fixed by the bolt connection assembly 903. Then, when the force arm 704 rotates in the opposite direction to apply kinetic energy to the spoke wheel 100, the time that the spoke wheel 100 is subjected to the force of the force arm 704 is increased, thereby obtaining greater kinetic energy. Conversely, when a smaller kinetic energy is required for the spoke wheel 100, the arc-shaped magnetic strip 901 is adjusted upward.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spoke wheel dynamic balance detection device comprising a base and an axle stand, characterized in that, The base is provided with a roundness detection unit, a dynamic balance detection unit, a processor terminal and a display, and the roundness detection unit and the dynamic balance detection unit are electrically connected with the processor terminal; A vertical plate is fixed on the base on one side of the shaft support, a rotating shaft is rotatably arranged on the vertical plate and is in the same straight line with the wheel shaft of the spoke wheel on the shaft support, a driving assembly for realizing rotation of the rotating shaft and instantaneous release of the rotation is arranged on the vertical plate, an urging arm is connected to the end of the rotating shaft, a clamping assembly for clamping the spoke wheel is arranged at the end of the urging arm, the clamping assembly comprises a U-shaped plate, moving rods are penetrated through the two side surfaces of the U-shaped plate, clamping pieces are arranged at the inner ends of the two moving rods, magnetic blocks are arranged at the outer ends of the two moving rods, and fourth springs are connected between the clamping pieces and the side surfaces of the U-shaped plate. Arc-shaped frames are fixed on the bases on the rear sides of the two shaft supports, arc-shaped magnetic strips are mounted on the opposite side surfaces of the two arc-shaped frames, the arc-shaped magnetic strips are aligned with the paths of the magnetic blocks rotating with the urging arm, and the ends of the arc-shaped magnetic strips close to the magnetic blocks are oppositely magnetized. Arc-shaped grooves are formed between the opposite side surfaces of the two arc-shaped frames, the arc-shaped magnetic strips are mounted in the arc-shaped grooves through bolt connecting assemblies, and arc-shaped mounting holes are formed in the arc-shaped frames and act on the bolt connecting assemblies. The driving assembly comprises a sliding rail arranged on the vertical plate, a moving strip is arranged on the sliding rail, a third spring is connected between the end of the moving strip and an end block on the vertical plate, a power motor is arranged on the vertical plate, a notched gear meshing with the tooth surface of the moving strip is arranged on the motor shaft of the power motor, and a gear meshing with the lower tooth surface of the moving strip is arranged on the rotating shaft.

2. The spoke wheel dynamic balance detection device according to claim 1, characterized by The roundness detection unit comprises a vertical cylinder fixed below the spoke wheel, a first pressure sensor is arranged at the lower end of the vertical cylinder, a lifting vertical rod is inserted into the upper end of the vertical cylinder, an abutting wheel abutting against the spoke wheel is arranged at the upper end of the lifting vertical rod, a limiting end block in the vertical cylinder is connected to the lower end of the lifting vertical rod, and a first spring is arranged between the limiting end block and the first pressure sensor.

3. Spoke wheel dynamic balance detection device according to claim 2, characterized in that The dynamic balance detection unit comprises a base block, two symmetrical side plates are arranged on the base block, a second pressure sensor is arranged on the opposite side surfaces of the two side plates, a second spring is connected to the second pressure sensor, an arc-shaped plate is connected to the end of the second spring, and rolling balls are movably embedded in the side surface of the arc-shaped plate close to the spoke wheel.

4. The spoke wheel dynamic balance detection device according to claim 3, characterized by An guide rod perpendicular to the side plates is arranged on the arc-shaped plate, and a circular hole matching the guide rod is formed in the side plate.

5. The spoke wheel dynamic balance detection device according to claim 1, wherein A processing module and a storage module are arranged in the processor terminal.

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