Wheel bolt friction coefficient testing device
By designing a wheel bolt friction coefficient testing device, which is directly installed inside the bolt fixture and uses a tightening drive system to apply preload axial force, the accuracy and safety issues of wheel bolt friction coefficient testing are solved, achieving efficient and accurate test results.
Patent Information
- Application Number
- CN202423115090.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing technologies are insufficient for accurately testing the friction coefficient of wheel bolts, especially due to the irregular shape and short length of the bolt heads, making conventional equipment unsuitable. Furthermore, traditional testing methods pose safety hazards and are prone to inaccurate results from repeated installations.
A wheel bolt friction coefficient testing device was designed, including a sensor mounting assembly, a bolt bearing sleeve anti-rotation plate, a tooling anti-rotation plate, a panel, wheel bolts, and bolt tooling. By directly installing the device inside the bolt tooling and applying preload axial force using a tightening drive system, the friction coefficient can be measured, avoiding the problems of disassembly and repeated installation.
It achieves high-precision and safe wheel bolt friction coefficient testing, avoiding the safety hazards and installation inaccuracies of traditional testing methods, and is suitable for wheel bolts of different specifications and lengths.
Smart Images
Figure CN223611356U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wheel bolt friction coefficient testing device application technical field especially is wheel bolt friction coefficient testing device. BACKGROUND
[0002] In the wheel bolt friction coefficient test, the bolt head is irregular, the bolt length is very short, so the conventional friction coefficient equipment is difficult to do the wheel bolt friction coefficient test, and the wheel bolt friction coefficient test data requirement is more accurate than the ordinary bolt friction coefficient test data, therefore a special wheel bolt friction coefficient testing device is needed, and the wheel bolt friction coefficient testing device can effectively solve the technical application demand. UTILITY MODEL CONTENTS
[0003] In view of the deficiency of prior art, the utility model aims at providing wheel bolt friction coefficient testing device, which is composed of sensor installation assembly, sensor, bolt pressure sleeve anti-rotation plate, tool anti-rotation plate, panel, wheel bolt and bolt tool, and effectively solves the technical application demand of wheel bolt friction coefficient test.
[0004] The utility model discloses the above-mentioned utility model aims at realizing through the following technical schemes:
[0005] Wheel bolt friction coefficient testing device, including the mounting seat, be provided with bolt tool, panel and wheel bolt on the mounting seat, the one end of wheel bolt is installed in bolt tool, and the other end is worn out the panel, is installed on the bolt tool torque force sensor, and the one side of bolt tool is provided with bolt tool anti-rotation mechanism around;
[0006] Wheel bolt is installed in bolt tool, and the thread friction force received by bolt tool is pressed on the mounting seat, and the bolt tool anti-rotation mechanism bears the force of wheel bolt thread rotation, and the friction coefficient of wheel bolt is generated;
[0007] By wheel bolt tightening corresponding nut, the end face friction force generated when tightening nut acts on the panel, and the pretightening force between wheel bolt and nut acts on the bolt tool, and the bolt tool acts on the torque force sensor, and the wheel bolt friction coefficient data is obtained.
[0008] As a further technical scheme of the utility model: the bolt tool anti-rotation mechanism includes bolt pressure sleeve anti-rotation plate, tool anti-rotation plate, two first connecting rods and two second connecting rods, the bolt pressure sleeve anti-rotation plate is installed on the bolt tool and is located at the side, away from the mounting seat, of the torque force sensor;
[0009] One end of two first connecting rods is fixed on the end face of the bolt pressure receiving sleeve anti-rotation plate away from the torque force sensor, one end of two second connecting rods is fixed on the end face of the bolt tooling, and the tooling anti-rotation plate is detachably fixed on the first connecting rods and the second connecting rods.
[0010] As a further technical scheme of the utility model, two assembly holes for inserting the second connecting rods are formed in the tooling anti-rotation plate, and a clamping groove for embedding the first connecting rod is formed in each end of the tooling anti-rotation plate along the length direction.
[0011] As a further technical scheme of the utility model, the two first connecting rods and the two second connecting rods are located on the same horizontal plane.
[0012] As a further technical scheme of the utility model, the mounting seat comprises a bottom plate and a vertical plate detachably fixed on the bottom plate, an installation hole for embedding the bolt tooling is formed in the vertical plate, and the panel is fixed on one side of the vertical plate and connected with the bolt tooling.
[0013] As a further technical scheme of the utility model, a waist-shaped fixing groove is formed in each end of the bottom plate along the length direction.
[0014] In summary, the utility model has at least one of the following beneficial technical effects:
[0015] The utility model discloses a wheel bolt friction coefficient testing device, which is directly installed in bolt tooling for testing, and pre-tightening axial force is applied through tightening driving system, so that the traditional mode of disassembling tooling sensor, carrying to other pressure for loading test is solved, the safety hidden danger and inaccurate problem caused by disassembling are effectively avoided, the sensor needs to be disassembled and replaced due to different bolt lengths and different specifications on site, and the technical application demand of wheel bolt friction coefficient test is effectively solved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the whole structure schematic view of the utility model.
[0017] Fig. 2 It is the sectional view of the utility model.
[0018] Fig. 3 It is the perspective view of the utility model.
[0019] Marked: 1, mounting seat; 11, bottom plate; 111, waist-shaped fixing groove; 12, vertical plate; 121, mounting hole; 2, bolt tool; 3, panel; 4, wheel bolt; 5, torque force sensor; 6, bolt tool anti-rotation mechanism; 61, bolt pressure sleeve anti-rotation plate; 62, tool anti-rotation plate; 621, assembly hole; 622, clamping groove; 63, first connecting rod; 64, second connecting rod. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT
[0023] REFERENCE Figs. 1-3 The wheel bolt friction coefficient testing device disclosed by the utility model, including mounting seat 1, mounting seat 1 is provided with bolt tool 2, panel 3 and wheel bolt 4, one end of wheel bolt 4 is installed in bolt tool 2, the other end passes out panel 3, bolt tool 2 is installed with torque force sensor 5, and the four sides of one side of bolt tool 2 are provided with bolt tool anti-rotation mechanism 6.
[0024] The mounting seat 1 comprises a bottom plate 11 and a vertical plate 12 detachably fixed on the bottom plate 11, the vertical plate 12 is provided with a mounting hole 121 for embedding the bolt tool 2, and the panel 3 is fixed on one side of the vertical plate 12 and connected with the bolt tool 2.
[0025] The wheel bolt 4 is installed in the bolt tool 2, the friction force of the bolt tool 2 is pressed on the mounting seat 1, the bolt tool anti-rotation mechanism 6 bears the force of the threaded rotation of the wheel bolt 4, and the friction coefficient of the wheel bolt 4 is generated; the corresponding nut is tightened through the wheel bolt 4, the end face friction force generated when the nut is tightened acts on the panel 3, the pretightening force between the wheel bolt 4 and the nut acts on the bolt tool 2, and the bolt tool 2 acts on the torque force sensor 5 to obtain the friction coefficient data of the wheel bolt 4.
[0026] The bolt tool anti-rotation mechanism 6 comprises a bolt pressure-bearing sleeve anti-rotation plate 61, a tool anti-rotation plate 62, two first connecting rods 63 and two second connecting rods 64, the bolt pressure-bearing sleeve anti-rotation plate 61 is installed on the bolt tool 2 and located on the side, away from the mounting seat 1, of the torque force sensor 5; one end of each of the two first connecting rods 63 is fixed on the end face of the side, away from the torque force sensor 5, of the bolt pressure-bearing sleeve anti-rotation plate 61, one end of each of the two second connecting rods 64 is fixed on the end face of the bolt tool 2, and the tool anti-rotation plate 62 is detachably fixed on the first connecting rods 63 and the second connecting rods 64.
[0027] The tool anti-rotation plate 62 is provided with two assembly holes 621 for inserting the second connecting rods 64, and is provided with a clamping groove 622 for embedding the first connecting rods 63 at each end along the length direction.
[0028] Preferably, the wheel bolt friction coefficient testing device can test wheel bolts 4 of different specifications and lengths, is directly installed on the tool for use, is simple and intuitive to operate, and is accurate in data.
[0029] The embodiment principle of the utility model is: the utility model discloses a wheel bolt friction coefficient testing device, which is directly installed in a bolt tool 2 for testing, applies pretightening axial force through a tightening driving system, solves the mode that the traditional bolt tool sensor needs to be disassembled and carried to other pressure for loading test, effectively avoids the security risks and inaccurate problems caused by disassembly and repeated installation, avoids the need for disassembling and replacing the sensor due to different specifications of the bolt length, and effectively solves the technical application requirement of wheel bolt 4 friction coefficient test.
[0030] The embodiments of the present embodiment are the preferred embodiments of the present utility model, not limited to the protection scope of the present utility model, so: all equivalent changes made according to the structure, shape, principle of the present utility model should be covered in the protection scope of the present utility model.
Claims
1. A wheel bolt friction coefficient testing device, characterized by, The mounting base (1) is provided with a bolt tool (2), a panel (3) and a wheel bolt (4), one end of the wheel bolt (4) is installed in the bolt tool (2), the other end passes through the panel (3), the bolt tool (2) is provided with a torque force sensor (5), and the bolt tool (2) is provided with a bolt tool anti-rotation mechanism (6) on one side. The wheel bolt (4) is installed in the bolt tool (2), the thread friction force received by the bolt tool (2) is pressed on the mounting base (1), and the bolt tool anti-rotation mechanism (6) bears the force of thread rotation of the wheel bolt (4), so that the friction coefficient of the wheel bolt (4) is generated. The end face friction force generated when the corresponding nut is tightened acts on the panel (3), the pretightening force between the wheel bolt (4) and the nut acts on the bolt tool (2), and the bolt tool (2) acts on the torque force sensor (5) to obtain the friction coefficient data of the wheel bolt (4).
2. The wheel bolt friction coefficient testing device of claim 1, wherein, The bolt tool anti-rotation mechanism (6) comprises a bolt pressure sleeve anti-rotation plate (61), a tool anti-rotation plate (62), two first connecting rods (63) and two second connecting rods (64), the bolt pressure sleeve anti-rotation plate (61) is installed on the bolt tool (2) and located on the side of the torque force sensor (5) away from the mounting base (1). One end of each of the two first connecting rods (63) is fixed on the end face of the side of the bolt pressure sleeve anti-rotation plate (61) away from the torque force sensor (5), one end of each of the two second connecting rods (64) is fixed on the end face of the bolt tool (2), and the tool anti-rotation plate (62) is detachably fixed on the first connecting rods (63) and the second connecting rods (64).
3. The wheel bolt friction coefficient testing device of claim 2, wherein, Two assembly holes (621) are formed in the tool anti-rotation plate (62) for inserting the second connecting rods (64), and clamping grooves (622) are formed in the two ends of the tool anti-rotation plate (62) along the length direction for embedding the first connecting rods (63).
4. The wheel bolt friction coefficient testing apparatus according to claim 2, characterized by, The two first connecting rods (63) and the two second connecting rods (64) are located on the same horizontal plane.
5. The wheel bolt friction coefficient testing apparatus according to claim 1, wherein, The mounting base (1) comprises a bottom plate (11) and a vertical plate (12) detachably fixed on the bottom plate (11), the vertical plate (12) is provided with a mounting hole (121) for embedding the bolt tool (2), and the panel (3) is fixed on one side of the vertical plate (12) and connected with the bolt tool (2).
6. The wheel bolt friction coefficient testing apparatus according to claim 5, wherein, The two ends of the bottom plate (11) along the length direction are respectively provided with a waist-shaped fixing groove (111).