Wheel runout measuring device

Abstract

The invention relates to a wheel runout measuring device, which comprises a supporting seat, a rotating structure and a measuring structure, and is characterized in that the supporting seat is provided with an upward through mounting cavity, and the mounting cavity is internally provided with at least two bearings which are distributed at intervals in the vertical direction; the rotating structure comprises a rotating shaft, a rotating disc and a positioning disc, the rotating shaft extends in the vertical direction, the lower end of the rotating shaft is connected into inner holes of the two bearings, the rotating disc and the positioning disc are both concentrically connected with the rotating shaft, the rotating disc is located at the upper end of the supporting base and used for bearing the outer end face of a spoke, and the positioning disc is located on the upper side of the rotating disc and used for bearing the outer end face of the spoke. The pressing block is detachably arranged on the rotating shaft, and at least part of the pressing block is used for being pressed in the spoke center hole; the measuring structure is installed on the supporting base and located on the radial side of the rotary disc, and the measuring structure comprises a dial indicator. The objective of the invention is to solve the problems of poor detection precision and high detection difficulty of an existing detection tool.

Description

Technical Field

[0001] The invention relates to the technical field of wheel runout measurement, and in particular to a wheel runout measurement device. Background Art The runout detection of tubeless wheels is an important step to ensure wheel size accuracy and quality safety. Different types of wheel products have different runout requirements. Existing inspection tools usually measure the wheel upside down on the inspection tool, which has poor positioning, increased labor and inspection difficulty, and the bearings are prone to wear, which affects the runout measurement results and indirectly leads to frequent compensation orders from dealers. Summary of the invention

[0002] Based on the above description, the present invention provides a wheel runout measurement device to solve the problems of poor detection accuracy and great detection difficulty of existing inspection tools.

[0003] The technical solution of the present invention to solve the above technical problems is as follows: A wheel runout measurement device, comprising: The support seat is provided with an installation cavity which penetrates upward, and at least two bearings are installed in the installation cavity and are spaced apart from each other in the vertical direction; A rotating structure, comprising a rotating shaft, a rotating disk and a positioning disk, wherein the rotating shaft extends in an up-down direction and its lower end is connected to the inner holes of the two bearings, the rotating disk and the positioning disk are both concentrically connected to the rotating shaft, the rotating disk is located at the upper end of the supporting seat and is used to receive the outer end surface of the spoke, the positioning disk is located on the upper side of the rotating disk, and is detachably arranged with the rotating shaft, and at least part of it is used to be pressed in the center hole of the spoke; and, The measuring structure is installed on the supporting seat and is located on one side of the radial direction of the rotating disk. The measuring structure includes a dial indicator.

[0004] On the basis of the above technical solution, the present invention can also be improved as follows: Furthermore, the support seat comprises a support plate and a seat body, and the seat body is detachably mounted on the upper end surface of the support plate; The installation cavity is arranged in the seat body and passes through the seat body downward, and the installation cavity includes a first annular groove passing through upward and a second annular groove passing through downward, and the first annular groove and the second annular groove are used for installing the two bearings.

[0005] Furthermore, the rotating shaft includes an adjusting shaft section located below the second annular groove, and a thread is provided on the periphery of the adjusting shaft section; The wheel runout measurement device also includes an adjusting nut, which is threadedly connected to the adjusting shaft section and abuts against the lower end surface of the bearing installed in the second annular groove.

[0006] Furthermore, the two bearings are divided into a tapered roller bearing installed in the first annular groove, and a rolling bearing installed in the second annular groove, and the inner ring diameter and the outer ring diameter of the tapered roller bearing are both larger than those of the rolling bearing.

[0007] Furthermore, the measuring device further comprises: a fixing platform, which is detachably mounted on the supporting plate, and at least part of which protrudes from the supporting plate in the radial direction of the rotating shaft; and The bracket comprises a base provided on the upper end surface of the support plate, a first support rod hinged to the base, and a second support rod hinged to the first support rod; The dial indicator is connected to the second support rod.

[0008] Furthermore, the support plate is provided with threaded holes extending in the up-down direction; The fixing platform is provided with fixing through holes corresponding to the supporting plate; The wheel runout measurement device also includes a fixing bolt, which passes through the fixing through hole and is connected to the threaded hole.

[0009] Furthermore, the portion of the rotating shaft protruding upward from the central through hole of the positioning plate is configured as a fixing portion; The wheel runout measurement device further comprises a limiting sleeve, which is mounted on the periphery of the fixing portion and abuts against the upper end surface of the positioning plate.

[0010] Furthermore, the positioning plate also includes a plate body for pressing on the center hole of the spoke and a connecting column connected to the upper end surface of the plate body, and an annular groove is provided in the middle of the connecting column.

[0011] Furthermore, the diameter of the positioning plate is gradually reduced from top to bottom.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: By making the positioning disk and the rotating shaft detachable, and at least partially pressing the positioning disk into the center hole of the spoke, the wheel can be placed upright on the rotating disk, so that the outer end surface of the spoke is supported on the upper end surface of the rotating disk, and then the positioning disk is connected to the rotating shaft, and the positioning disk is pressed downward so that at least part of it is inserted into the center hole of the spoke, so that the positioning disk can press the wheel downward to position it with the rotating disk, and the positioning is stable, ensuring the measurement accuracy; simplifying the measurement operation and reducing the labor difficulty. The setting of the two bearings can improve the bearing capacity of the rotating structure, improve the wear resistance, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1A schematic diagram of the structure of a wheel runout measurement provided by an embodiment of the present invention (excluding the limit sleeve); Figure 2 It is a structural schematic diagram of the support seat and the rotating structure in an embodiment of the present invention (excluding the limiting sleeve); Figure 3 A schematic diagram of the structure of a measuring device and a positioning assembly in an embodiment of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure from another perspective.

[0014] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Support seat; 11. Support plate; 12. Seat body; 121. Mounting cavity; 1211. First annular groove; 1212. Second annular groove; 1213. Avoidance groove; 21. Tapered roller bearing; 22. Rolling bearing; 3. Rotating structure; 31. Rotating shaft; 311. Adjusting shaft section; 312. Connecting shaft section; 3121. Fixing part; 313. Mounting shaft section; 32. Turntable; 33. Positioning plate; 331. Plate body; 332, connecting column; 3321, groove; 4, measuring structure; 41, dial indicator; 42, fixing table; 43, bracket; 431, base; 432, first support rod; 433, second support rod; 4331, long through groove; 5, adjusting nut; 6, gasket; 7, positioning assembly; 71, positioning rod; 711, matching groove; 72, positioning screw; 73, positioning nut; a, wheel; a1, spoke center hole. DETAILED DESCRIPTION

[0015] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0017] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0018] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0019] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0020] Please refer to Figure 1 and Figure 2 The present invention proposes a wheel runout measurement device, including a support seat 1, a rotating structure 3 and a measuring structure 4, wherein the support seat 1 is provided with an installation cavity 121 which passes through upward, and at least two bearings which are spaced apart in the vertical direction are installed in the installation cavity 121; the rotating structure 3 includes a rotating shaft 31, a rotating disk 32 and a positioning disk 33, wherein the rotating shaft 31 extends in the vertical direction, and its lower end is connected to the inner holes of the two bearings, the rotating disk 32 and the positioning disk 33 are both concentrically connected to the rotating shaft 31, the rotating disk 32 is located at the upper end of the support seat 1, and is used to receive the outer end surface of the spoke, the positioning disk 33 is located on the upper side of the rotating disk 32, and is detachably arranged with the rotating shaft 31, and at least part of it is used to be pressed in the center hole a1 of the spoke; the measuring structure 4 is installed on the support seat 1, and is located on one side of the radial direction of the rotating disk 32, and the measuring structure 4 includes a dial indicator 41.

[0021] By making the positioning disk 33 and the rotating shaft 31 detachable, and at least part of the positioning disk 33 is pressed into the spoke center hole a1, the wheel a can be placed on the rotating disk 32, so that the outer end surface of the spoke is supported on the upper end surface of the rotating disk 32, and then the positioning disk 33 is connected to the rotating shaft 31, and the positioning disk 33 is pressed downward so that at least part of it is inserted into the spoke center hole a1, so that the positioning disk 33 can press the wheel a downward to position it with the rotating disk 32, and the positioning is stable, ensuring the measurement accuracy; simplifying the measurement operation and reducing the labor difficulty. The setting of the two bearings can improve the bearing capacity of the rotating structure 3, improve the wear resistance, and extend the service life.

[0022] Since the wheel a is placed on the upper end surface of the turntable 32, there is no restriction on the height of the support base 1, and it is not necessary to set the height of the support base 1 to be greater than the thickness of the wheel a. Therefore, in the present invention, the support base 1 is smaller in size and lighter in weight, which is convenient for moving and carrying.

[0023] Specifically, in this embodiment, continue to refer to Figure 1 and Figure 2 The support seat 1 includes a support plate 11 and a seat body 12, and the seat body 12 is detachably mounted on the upper end surface of the support plate 11; the installation cavity 121 is arranged in the seat body 12 and penetrates the seat body 12 downward, and the installation cavity 121 includes a first annular groove 1211 penetrating upward and a second annular groove 1212 penetrating downward, and the first annular groove 1211 and the second annular groove 1212 are used for the installation of the two bearings. In this way, the installation, removal or replacement of the two bearings is convenient. And the installation cavity 121 can be sealed to prevent dust or impurities from entering the installation cavity 121, affecting the performance of each bearing, thereby affecting the accuracy.

[0024] More specifically, the support plate 11 is circular, the support seat 1 is provided with a plurality of bolt holes spaced along its circumference, the seat body 12 is provided with through holes corresponding to the plurality of bolt holes, and the support seat 1 and the seat body 12 are detachably connected by bolts passing through the through holes and connected to the corresponding bolt holes.

[0025] More specifically, in this embodiment, referring to Figure 1 and Figure 2The rotating shaft 31 includes an adjusting shaft section 311 located below the second annular groove 1212, and the outer periphery of the adjusting shaft section 311 is provided with threads; the wheel runout measurement device also includes an adjusting nut 5, which is threadedly connected to the adjusting shaft section 311 and abuts against the lower end surface of the bearing installed in the second annular groove 1212. Therefore, by adjusting the adjusting nut 5 to move on the adjusting shaft section 311, the adjusting nut can always abut against the lower end surface of the bearing installed in the second annular groove 1212, so as to achieve wear compensation and rotation accuracy adjustment, so as to ensure measurement accuracy.

[0026] It should be noted that the wheel runout measurement device further includes a gasket 6, which is sleeved on the adjusting shaft section 311 and located between the adjusting nut 5 and the bearing located in the second annular groove 1212. The gasket 6 can disperse the bearing force and strengthen the structure of the adjusting nut 5.

[0027] Further, in this embodiment, continue to refer to Figure 1 and Figure 2 The two bearings are divided into a tapered roller bearing 21 installed in the first annular groove 1211 and a rolling bearing 22 installed in the second annular groove 1212. The outer ring diameter and inner ring diameter of the tapered roller bearing 21 are both larger than those of the rolling bearing 22. The tapered roller bearing 21 is located on the upper side of the rolling bearing 22 and is used to bear radial and axial combined loads, mainly radial. The rolling bearing 22 converts sliding friction into rolling friction, thereby reducing friction loss. Therefore, the tapered roller bearing 21 and the rolling bearing 22 cooperate to improve the bearing capacity and reduce wear.

[0028] It should be noted that, in this embodiment, referring to Figure 1 and Figure 2 The rotating shaft 31 also includes a connecting shaft section 312 and an installation shaft section 313. The connecting shaft section 312 is used to pass through the central through holes of the positioning plate 33 and the rotating disk 32 and extend out of the positioning plate 33. The installation shaft section 313 is connected to the lower end of the connecting shaft section 312, and at least part of the installation shaft section 313 is located in the inner hole of the rotating disk 32, and the rest is located outside the rotating disk 32. The installation shaft section 313 is provided with a plurality of threaded holes extending in the up and down directions and distributed at intervals along its circumference. The rotating disk 32 is correspondingly provided with through holes corresponding to the plurality of threaded holes. The bolts are passed through the through holes and connected to the corresponding threaded holes, so that the rotating shaft 31 and the rotating disk 32 are fixed, the connection is more stable, and the concentricity of the rotating shaft 31 and the rotating disk 32 is ensured.

[0029] In addition, the lower end surface of the installation shaft section 313 abuts against the tapered roller bearing 21, and an annular avoidance groove 1213 is formed in the installation cavity 121, and the avoidance groove 1213 is located at the lower side of the tapered roller bearing 21. The outer ring of the tapered roller bearing 21 abuts against the groove wall of the first annular groove 1211, and the inner ring corresponds to the avoidance groove 1213, so that the tapered roller bearing 21 can rotate. In this way, the various parts are connected and arranged tightly.

[0030] Specifically, the diameter of the positioning disk 33 is gradually reduced from top to bottom. In this embodiment, the positioning disk 33 is set in an inverted cone structure. Therefore, it is convenient for the positioning disk 33 to be pressed into the spoke center hole a1, and as long as the lower part of the positioning disk 33 enters the spoke center hole a1, the positioning disk 33 can position the wheel a, so it can adapt to wheels a with spoke center holes a1 of more sizes. The positioning effect is good, the versatility is improved, and the operation is convenient. And the cone angle of the positioning disk 33 is 30 degrees. It can not only facilitate the positioning disk 33 to enter the spoke center hole a1, but also ensure that the positioning disk 33 is stably pressed in the spoke center hole a1.

[0031] In this embodiment, the portion of the rotating shaft 31 that protrudes upward from the central through hole of the positioning plate 33 is set as a fixing portion 3121. The wheel runout measurement device also includes a limiting sleeve, which is installed on the periphery of the fixing portion 3121 and abuts against the upper end surface of the positioning plate 33. The connecting shaft section 312 includes the fixing portion 3121. In this embodiment, the limiting sleeve is sleeved on the fixing portion 3121 to form a nut screw pair, and when the rotating shaft 31 rotates, the limiting sleeve moves downward. First, place the tire on the turntable 32 so that the outer surface of the spoke contacts the upper end surface of the turntable 32, then make the central through hole of the positioning plate 33 pass through the rotating shaft 31, at this time, the positioning plate 33 corresponds to the central hole a1 of the spoke, then install the limiting sleeve on the periphery of the fixing portion 3121, and then rotate the turntable 32 so that the limiting sleeve moves downward and presses the positioning plate 33 downward so that the positioning plate 33 is tightly against the spoke, and the wheel a is stably and firmly positioned on the turntable 32, and then continue to rotate the turntable 32 for one circle to measure its runout. In this way, the operation is simple, manpower is saved, and the measurement accuracy is improved.

[0032] In another embodiment, the limiting sleeve is configured as a limiting nut, and the periphery of the fixing portion 3121 is provided with a thread adapted to the limiting nut, so that the limiting nut can be moved downward to abut against the positioning plate 33 by manually rotating the limiting nut.

[0033] It should be noted that when the wheel a needs to be disassembled, the wheel a can be disassembled by only removing the fixing sleeve and the positioning plate 33 from the rotating shaft 31 in sequence.

[0034] Furthermore, in this embodiment, the positioning plate 33 further comprises a plate body 331 for pressing on the spoke center hole a1 and a connecting column 332 connected to the upper end surface of the plate body 331, and a circular groove 3321 is provided in the middle of the connecting column 332. This makes it convenient for a person to hold the positioning plate 33, so as to facilitate the installation and removal of the positioning plate 33.

[0035] Since the wheel a is placed on the turntable 32 for measurement, there is no need to provide a support for jointly supporting the support plate 11 and the measuring device to facilitate the measurement of the runout of the wheel a. Figure 1 The measuring device further comprises a fixing platform 42 and a bracket 43. The fixing platform 42 is detachably mounted on the supporting plate 11, and at least a part thereof protrudes from the supporting plate 11 in the radial direction of the rotating shaft 31. The bracket 43 comprises a base 431 provided on the upper end surface of the supporting plate 11, a first support rod 432 hinged to the base 431, and a second support rod 433 hinged to the first support rod 432. The dial indicator 41 is connected to the second support rod 433. Thus, the weight of the wheel runout measuring device is reduced, the volume is smaller, and it is easy to carry. And by rotating the first support rod 432 and the second support rod 433, the height of the dial indicator 41 and the distance between the dial indicator 41 and the rim can be flexibly adjusted.

[0036] It should be noted that the hinge between the first support rod 432 and the base 431, and the hinge between the second support rod 433 and the first support are both hinges with interference. The first support rod 432 can rotate and stop at any position of its rotation range. Similarly, the second support rod 433 can rotate and stop at any position formed by its rotation.

[0037] More specifically, in this embodiment, the support plate 11 is provided with a threaded hole extending in the up-down direction; the fixing platform 42 is provided with a fixing through hole corresponding to the support plate 11; the wheel runout measurement device further includes a fixing bolt, which passes through the fixing through hole and is connected to the threaded hole. The fixing plate and the support plate 11 are connected, so the structure is simple and easy to assemble.

[0038] Further, in this embodiment, referring to Figures 1 to 4, the second support rod 433 is provided with an elongated through slot 4331 in the same extension direction as the second support rod 433. The wheel runout measurement device further includes a positioning assembly 7, which includes a positioning rod 71, a positioning screw 72 and at least four positioning nuts 73. The positioning rod 71 is located at one side of the measuring bracket 43, and the positioning rod 71 is penetrated with an elongated matching slot 711 extending in the up-down direction. The screw passes through the elongated through slot 4331 and the matching slot 711. The four positioning nuts 73 are all screwed on the positioning screw 72, and respectively abut against the two notches of the elongated through slot 4331 and the matching slot 711, so as to fix the second support rod 433 and the fixing rod, thereby fixing the dial indicator 41, avoiding the shaking of the bracket 43 during the measurement process to affect the measurement result, and improving the detection accuracy.

[0039] In the present invention, the tapered roller bearing 21 and the rolling bearing 22 are installed in the first annular groove 1211 and the second annular groove 1212 with interference fit, and the rotating shaft 31 is interference fit with the center hole of the rotating disk 32. The whole material adopts the quenching process to ensure the rigidity and verticality. The wheel a is tested in a horizontal manner, and only one operator is required to place the wheel a with the opening facing upward on the positioning disk 33 of the device. During the test: the operator holds the upper rim of the steel ring of the wheel a with his left hand and pulls it to the top of the inspection fixture to place the wheel a with the opening facing upward on the rotating disk 32, presses the positioning disk 33 with both hands to make it fall into the center hole a1 of the spoke, keeps it horizontally placed, adjusts the position of the dial indicator 41, and places the pointer of the dial indicator 41 vertically at the connection between the five-degree bevel of the rim and the rim, holds the bottom of the rim with the right hand, and rotates the steel ring clockwise from the valve mouth in the direction of the arrow for one circle, reads the pointer reading of the dial indicator 41, and after the test is completed, takes out the positioning disk 33, and lifts the wheel a with both hands. The detection difficulty and labor intensity are low.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheel runout measurement device, characterized in that: include: The support seat is provided with an installation cavity which penetrates upward, and at least two bearings are installed in the installation cavity and are spaced apart from each other in the vertical direction; A rotating structure, comprising a rotating shaft, a rotating disk and a positioning disk, wherein the rotating shaft extends in an up-down direction and its lower end is connected to the inner holes of the two bearings, the rotating disk and the positioning disk are both concentrically connected to the rotating shaft, the rotating disk is located at the upper end of the supporting seat and is used to receive the outer end surface of the spoke, the positioning disk is located on the upper side of the rotating disk, and is detachably arranged with the rotating shaft, and at least part of it is used to be pressed in the center hole of the spoke; and, The measuring structure is installed on the supporting seat and is located on one side of the radial direction of the rotating disk. The measuring structure includes a dial indicator.

2. The wheel runout measurement device according to claim 1, characterized in that: The support seat comprises a support plate and a seat body, and the seat body is detachably mounted on the upper end surface of the support plate; The installation cavity is arranged in the seat body and passes through the seat body downward, and the installation cavity includes a first annular groove passing through upward and a second annular groove passing through downward, and the first annular groove and the second annular groove are used for installing the two bearings.

3. The wheel runout measurement device according to claim 2, characterized in that: The rotating shaft comprises an adjusting shaft section located below the second annular groove, and a thread is arranged on the periphery of the adjusting shaft section; The wheel runout measurement device also includes an adjusting nut, which is threadedly connected to the adjusting shaft section and abuts against the lower end surface of the bearing installed in the second annular groove.

4. The wheel runout measurement device according to claim 3, characterized in that: The two bearings are divided into a tapered roller bearing installed in the first annular groove, and a rolling bearing installed in the second annular groove. The inner ring diameter and the outer ring diameter of the tapered roller bearing are both larger than those of the rolling bearing.

5. The wheel runout measurement device according to claim 2, characterized in that: The measuring device also includes: a fixing platform, which is detachably mounted on the supporting plate, and at least part of which protrudes from the supporting plate in the radial direction of the rotating shaft; and The bracket comprises a base provided on the upper end surface of the support plate, a first support rod hinged to the base, and a second support rod hinged to the first support rod; The dial indicator is connected to the second support rod.

6. The wheel runout measurement device according to claim 5, characterized in that: The support plate is provided with threaded holes extending in the up-down direction; The fixing platform is provided with fixing through holes corresponding to the supporting plate; The wheel runout measurement device also includes a fixing bolt, which passes through the fixing through hole and is connected to the threaded hole.

7. The wheel runout measurement device according to claim 1, characterized in that: The portion of the rotating shaft protruding upward from the central through hole of the positioning plate is configured as a fixing portion; The wheel runout measurement device further comprises a limiting sleeve, which is mounted on the periphery of the fixing portion and abuts against the upper end surface of the positioning plate.

8. The wheel runout measurement device according to claim 7, characterized in that: The positioning plate also includes a plate body for pressing on the center hole of the spoke and a connecting column connected to the upper end surface of the plate body, and an annular groove is provided in the middle of the connecting column.

9. The wheel runout measurement device according to claim 1, characterized in that: The diameter of the positioning plate is gradually reduced from top to bottom.

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