Brake disc positioning tool

Abstract

The utility model relates to a brake disc positioning tool belonging to tire assembly technical field. The brake disc positioning tool includes positioning piece and holding piece. The positioning piece includes positioning body and spline, the positioning body has first axis, the spline is set up on the positioning body around the first axis, at least a portion of the positioning body is suitable for extending into the central tooth slot of brake disc, and the spline is suitable for cooperating with the central tooth slot. The holding piece is located in the side of the positioning body along the first axis and is connected with the positioning body. The brake disc positioning tool of the utility model can avoid the synchronous rotation of brake disc with tire during the process of the position alignment of positioning hole and bolt hole.

Description

Technical Field

[0001] This utility model relates to the field of tire assembly technology, and in particular to a brake disc positioning tool. Background Technology

[0002] When assembling tires on a vehicle, bolts are often inserted through the locating holes on the tire and tightened into the bolt holes on the brake disc to assemble the tire and brake disc together. Before this, the tire is usually rotated so that the tire and brake disc rotate relative to each other around their axis, aligning the locating holes with the bolt holes to facilitate bolt assembly and tightening.

[0003] However, because range-extended electric vehicles lack a driveshaft, the brake disc can easily rotate synchronously during the process of rotating the tires to align the positioning holes with the bolt holes. This can lead to misalignment between the positioning holes and bolt holes, making bolt assembly impossible and potentially causing stripped threads on the brake disc, increasing the risk of brake disc replacement. Even if assembly is managed to be completed, it still poses a significant safety hazard during vehicle operation. Utility Model Content

[0004] Therefore, this utility model embodiment provides a brake disc positioning tool that prevents the brake disc from rotating synchronously with the tire during the alignment of the positioning holes and bolt holes. The technical solution is as follows: The brake disc positioning tool includes a positioning component and a holding component; The positioning element includes a positioning body and a spline. The positioning body has a first axis, and the spline is disposed on the positioning body around the first axis. At least a portion of the positioning body is adapted to extend into the central tooth groove of the brake disc, and the spline is adapted to engage with the central tooth groove. The gripping element is located on one side of the positioning body along the first axis and is connected to the positioning body.

[0005] In some possible implementations, the positioning element further includes a first connecting portion disposed on one side of the positioning body along the first axis; The gripping component includes a gripping body and a second connecting part connected together, and the second connecting part is detachably connected to the first connecting part.

[0006] In some possible implementations, one of the first connecting parts and the second connecting part is a nut and the other is a bolt.

[0007] In some possible implementations, the corners of the portion of the positioning member that extends into the central tooth groove are all rounded.

[0008] In some possible implementations, the portion of the positioning element that contacts the central tooth groove is ground.

[0009] In some possible implementations, at least the portion of the positioning element that contacts the central tooth groove is made of POM (polyoxymethylene).

[0010] In some possible implementations, the gripping member includes a connected first extension and a second extension; The first extension extends along the first axis and is connected to the positioning body; The second extension extends along the second axis; Wherein, the angle between the second axis and the first axis is α, where 80°≤α≤100°; When the gripping member includes a connected gripping body and a second connecting portion, the connected first extension and second extension become the gripping body, and the second connecting portion is disposed at one end of the first extension away from the second extension. Preferably, α = 90°.

[0011] In some possible implementations, the first extension is connected to the middle of the second extension to form a T-shape.

[0012] In some possible implementations, the surface of the second extension is covered with a pad.

[0013] In some possible implementations, the first extension is cylindrical, and / or the second extension is cylindrical.

[0014] In the solution shown in this utility model, at least a portion of the positioning body can extend into the central toothed groove of the brake disc and engage with the central toothed groove via a spline, thereby allowing the brake disc and the positioning member to be relatively fixed circumferentially. Thus, when the gripping member connected to the positioning body is fixed, the brake disc cannot rotate. Consequently, when the tire rotates, the brake disc will not rotate synchronously, facilitating the alignment of the tire's positioning hole with the brake disc's bolt hole. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a brake disc positioning tool provided in an embodiment of the present invention; Figure 2 This is a front view structural diagram of a brake disc positioning tool provided in an embodiment of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of a brake disc positioning tool provided in an embodiment of this utility model; Figure 4 This is a top view of a brake disc positioning tool provided in an embodiment of the present invention; Figure 5 This is a top view of a positioning component provided in an embodiment of the present utility model; Figure 6 This is a side view of a brake disc positioning tool provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of a second extension provided in an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures 01. First axis; 02. Second axis; 1. Positioning component; 11. Positioning body; 12. Spline; 13. First connecting part; 2. Grip; 21. Grip body; 211. First extension; 212. Second extension; 213. Pad; 22. Second connecting part. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0019] This embodiment relates to a brake disc positioning tool, see reference. Figure 1 As shown, the brake disc positioning tool includes a positioning component 1 and a holding component 2.

[0020] The positioning component 1 includes a positioning body 11 and a spline 12. (Reference) Figure 2 As shown, the positioning body 11 has a first axis 01, and a spline 12 is disposed on the positioning body 11 around the first axis 01. For example, the positioning body 11 can be approximately cylindrical, the first axis 01 is the axis of the cylindrical structure, and the spline 12 can be disposed around the periphery of the positioning body 11.

[0021] At least a portion of the positioning body 11 is adapted to extend into the central tooth groove of the brake disc, and the spline 12 is adapted to engage with the central tooth groove.

[0022] The gripper 2 is located on one side of the positioning body 11 along the first axis 01 and is connected to the positioning body 11. The gripper 2 and the positioning body 11 can be detachably connected or non-detachably connected.

[0023] For example, the spline 12 can be located on the periphery of the positioning body 11 away from the gripper 2, and the part of the positioning body 11 away from the gripper 2 or the entire positioning body 11 can extend into the central tooth groove, so that the spline 12 can cooperate with the central tooth groove.

[0024] As described above, at least a portion of the positioning body 11 can extend into the central toothed groove of the brake disc and engage with the central toothed groove via the spline 12, thereby allowing the brake disc and the positioning member 1 to be relatively fixed circumferentially. Thus, when the gripper 2 connected to the positioning body 11 is fixed, the brake disc cannot rotate. Consequently, when the tire rotates, the brake disc will not rotate synchronously, facilitating the alignment of the tire's positioning hole with the brake disc's bolt holes.

[0025] For example, after the tire is fitted to the brake disc, the operator can hold the grip 2 with one hand and insert the positioning body 11 into the center tooth groove of the brake disc, keeping the grip 2 stationary so that the brake disc cannot rotate. The operator's other hand can rotate the tire, thereby allowing the tire and brake disc to rotate relative to each other, thus aligning the tire's positioning hole with the brake disc's threaded hole.

[0026] In some examples, reference Figure 5 As shown, the positioning member 1 also includes a first connecting portion 13. Combined with... Figures 2 to 4 As shown, the first connecting part 13 is disposed on one side of the positioning body 11 along the first axis 01.

[0027] refer to Figure 3 As shown, the gripper 2 includes a connected gripping body 21 and a second connecting portion 22. (Combined) Figure 2 and Figure 3 As shown, the second connecting part 22 is detachably connected to the first connecting part 13. Thus, the holding body 21 can be positioned on one side of the positioning body 11 along the first axis 01.

[0028] For example, in Figure 2 In this configuration, the first axis 01 can extend vertically, and the first connecting portion 13 can be located on the upper side of the positioning body 11. The gripping member 2 can be located on the upper side of the positioning body 11 through the connection between the second connecting portion 22 and the first connecting portion 13.

[0029] In this way, the positioning component 1 and the gripping component 2 can be detachably connected. Thus, on the one hand, if the positioning component 1 or the gripping component 2 is damaged, one of them can be replaced, saving costs; on the other hand, positioning components 1 of different sizes can be replaced to match brake discs of different specifications.

[0030] In some examples, one of the first connecting portion 13 and the second connecting portion 22 is a nut and the other is a bolt. For example, the first connecting portion 13 can be a nut and the second connecting portion 22 can be a bolt; alternatively, the first connecting portion 13 can be a bolt and the second connecting portion 22 can be a nut. In this embodiment, using... Figure 3 and Figure 5 The example shown is a nut for the first connecting part 13 and a bolt for the second connecting part 22.

[0031] As described above, using bolts and nuts as the first connecting part 13 and the second connecting part 22 respectively has the advantages of simple structure, convenient connection and good connection stability. On the other hand, existing nuts and bolts can be used, and the materials are readily available, which makes the manufacturing of the brake disc positioning tool simple and low cost.

[0032] In some examples, the corners of the portion of the positioning element 1 that extends into the central tooth groove are rounded. For example, if a portion of the positioning body 11 that is away from the gripping body 21 can extend into the central tooth groove, then the corresponding edge of the positioning body 11 and the tooth tip edge of the spline 12 can both be rounded.

[0033] Therefore, when the corresponding part of the positioning body 11 extends into the central tooth groove and the spline 12 engages with the central tooth groove, it helps to avoid sharp edges from scratching the brake disc.

[0034] In some examples, the portion of the positioning element 1 that contacts the central tooth groove is polished. For example, the surface of the positioning body 11 facing away from the gripping body 21, as well as the surface of the spline 12, can be polished.

[0035] This helps to prevent the brake disc from being damaged when the part of the positioning element 1 that contacts the center tooth groove is too rough and squeezes or contacts each other.

[0036] In some examples, at least the portion of the positioning element 1 that contacts the central tooth groove is made of POM (polyoxymethylene). POM has sufficient strength to provide good positioning and is relatively durable. At the same time, the hardness of POM is not excessive, thus preventing damage to the brake disc when the positioning element 1 is pressed against it. Furthermore, POM is a relatively inexpensive material.

[0037] For example, both the positioning body 11 and the spline 12 can be made of POM material and obtained through integral injection molding. Among them, such as... Figure 5 and combined Figure 2 As shown, the nut, which serves as the connecting part 13, can be pre-embedded on one side surface of the positioning body 11 along the first axis 01.

[0038] In some examples, reference Figure 2As shown, the gripper 2 includes a first extension 211 and a second extension 212 connected together.

[0039] For example, both the first extension 211 and the second extension 212 can be made of metals with high strength and hardness, such as steel or copper. The first extension 211 and the second extension 212 can be integrally formed, or they can be two independent structural parts that are fixedly connected together by welding.

[0040] Among them, continue to refer to Figure 2 As shown, the first extension 211 extends along the first axis 01 and is connected to the positioning body 11. The second extension 212 extends along the second axis 02. The angle between the second axis 02 and the first axis 01 is α, where 80°≤α≤100°. For example, α can be 80°, 82°, 85°, 88°, 89°, 91°, 93°, 96°, or 100°, etc.

[0041] Among them, such as Figure 2 As shown, when the gripper 2 includes a gripping body 21 and a second connecting portion 22 connected together, the connected first extension 211 and second extension 212 become the gripping body 21, and the second connecting portion 22 is disposed at one end of the first extension 211 away from the second extension 212.

[0042] For example, the first end of the first extension 211 can be connected to the second extension 212, and the second end of the first extension 211 can be fixedly connected to the second connecting part 22 by welding. Thus, the first extension 211 can be connected to the positioning body 11 through the second connecting part 22.

[0043] In this way, the grip 2 is easy to hold, and when the tire is rotated, it is easy to apply force to the grip 2, which helps to keep the brake disc in a fixed position.

[0044] In some examples, α = 90°. Thus, the first extension 211 and the second extension 212 are perpendicular to each other. When the spline 12 engages with the central toothed groove, this allows the operator to apply force along the first axis 02 toward the brake disc by pressing the second extension 212, preventing the positioning member 1 from disengaging from the central toothed groove. Simultaneously, it also allows the operator to grip the second extension 212 firmly, preventing the positioning member 1 and the brake disc from rotating around the first axis 01.

[0045] In some examples, reference Figure 2As shown, the first extension 211 and the second extension 212 are connected at the middle to form a T-shape. This makes it easier for the operator to hold, and when the spline 12 engages with the central tooth groove, the operator can apply force to both sides of the first extension 211 along the second direction 02 through the second extension 212, thus preventing the positioning member 1 and the brake disc from rotating around the first axis 01.

[0046] In some examples, reference Figure 7 and combined Figure 6 As shown, the surface of the second extension 212 is covered with a pad 213. The pad 213 can be flocked fabric, which can be glued to the surface of the second extension 212. This improves the operator's grip comfort and, consequently, enhances the stability of the brake disc positioning.

[0047] In some examples, the first extension 211 is cylindrical, and / or the second extension 212 is cylindrical. For example, the first extension 211 may be cylindrical; the second extension 212 may be cylindrical; or both the first extension 211 and the second extension 212 may be cylindrical.

[0048] In this way, since the gripping areas of the first extension 211 and the second extension 212 can be without sharp edges, the operator's gripping comfort can be improved, preventing the operator's hand from being hurt when applying force, which in turn helps to improve work efficiency.

[0049] It should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0051] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0052] The above are merely embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A brake disc positioning tool, characterized in that, The brake disc positioning tool includes a positioning component (1) and a gripping component (2). The positioning element (1) includes a positioning body (11) and a spline (12). The positioning body (11) has a first axis (01). The spline (12) is disposed on the positioning body (11) around the first axis (01). At least a portion of the positioning body (11) is adapted to extend into the central tooth groove of the brake disc, and the spline (12) is adapted to engage with the central tooth groove. The grip (2) is located on one side of the positioning body (11) along the first axis (01) and is connected to the positioning body (11).

2. The brake disc positioning tool according to claim 1, characterized in that, The positioning component (1) further includes a first connecting part (13), which is disposed on one side of the positioning body (11) along the first axis (01); The grip (2) includes a grip body (21) and a second connecting part (22) connected together, and the second connecting part (22) is detachably connected to the first connecting part (13).

3. The brake disc positioning tool according to claim 2, characterized in that, Of the first connecting part (13) and the second connecting part (22), one is a nut and the other is a bolt.

4. The brake disc positioning tool according to claim 1, characterized in that, The corners of the part of the positioning member (1) that extends into the central tooth groove are all rounded.

5. The brake disc positioning tool according to claim 1, characterized in that, The portion of the positioning element (1) that contacts the central tooth groove is all polished.

6. The brake disc positioning tool according to claim 1, characterized in that, At least the part of the positioning element (1) that contacts the central tooth groove is made of POM (polyoxymethylene) material.

7. The brake disc positioning tool according to any one of claims 1 to 6, characterized in that, The grip (2) includes a first extension (211) and a second extension (212) connected together. The first extension (211) extends along the first axis (01) and is connected to the positioning body (11); The second extension (212) extends along the second axis (02); Wherein, the angle between the second axis (02) and the first axis (01) is α, where 80°≤α≤100°; When the grip (2) includes a grip body (21) and a second connecting part (22) connected together, the first extension (211) and the second extension (212) connected together become the grip body (21), and the second connecting part (22) is disposed at one end of the first extension (211) away from the second extension (212). Preferably, α = 90°.

8. The brake disc positioning tool according to claim 7, characterized in that, The first extension (211) is connected to the middle of the second extension (212) to form a T-shape.

9. The brake disc positioning tool according to claim 7, characterized in that, The surface of the second extension (212) is covered with a pad (213).

10. The brake disc positioning tool according to claim 7, characterized in that, The first extension (211) is cylindrical, and / or the second extension (212) is cylindrical.

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