A knuckle ball hinge rotation force testing device

Abstract

The utility model belongs to the field of steering knuckle bench test, concretely relates to a steering knuckle ball joint rotation force testing arrangement, two second connecting plates are fixed at the both sides of the third connecting plate, the second hug piece is fixed at the inner side of the third connecting plate, the first connecting plate pushes the first hug piece to slide in the guide groove of the second connecting plate through the butterfly type bolt, the ball joint is arranged between the first hug piece and the second hug piece, the lever passes through the ball joint, and the top is connected with high-strength inelastic fishing line and the force meter. The utility model is through the force meter to combine high-strength inelastic fishing line, is bound on the lever, and the lever is installed in the ball pin position in the middle of the steering knuckle ball joint according to the force arm requirement, after fixing the ball joint shell, pulls the force meter until the ball pin and the ball joint shell produce rotation, obtains the force meter numerical value as the ball joint rotation force on the basis of the required force arm, and the ball joint rotation force testing difficult problem on the steering knuckle is solved.

Description

Technical Field

[0001] This utility model belongs to the field of steering knuckle bench testing, specifically relating to a steering knuckle ball joint rotation power testing device. Background Technology

[0002] The steering knuckle is one of the main components of a car's suspension system. It connects to various links, bearings, wheel hubs, and brake assemblies, and plays a crucial role in bearing the loads of the front and rear of the vehicle, supporting and driving the wheel hubs to rotate, and enabling the vehicle to steer flexibly and drive normally. The overall suspension stiffness with steering knuckles directly affects driver comfort, and the rotational force of the ball joint on the steering knuckle is one of the important factors affecting suspension stiffness.

[0003] With the accelerated development of various vehicle models and the increasingly shorter R&D cycles, strengthening the R&D efforts in steering knuckle bench testing and improving the mechanical performance of steering knuckles to meet the needs of various road conditions has become an urgent requirement for the automotive industry. Regarding vehicle comfort, some automakers have explicitly specified the required rotational force of the ball joints on the steering knuckle; however, currently there is no effective device to test this rotational force. Utility Model Content

[0004] This invention proposes a steering knuckle ball joint rotation power testing device to solve the problem of the lack of ball joint rotation power testing methods in the prior art.

[0005] To achieve the above objectives, the present invention proposes the following technical solution:

[0006] A steering knuckle ball joint rotation power testing device includes a force gauge, a high-strength non-elastic fishing line, a ball joint, a lever, a first clamping block, a first connecting plate, two second connecting plates, a third connecting plate, and a second clamping block;

[0007] The two second connecting plates are fixed on both sides of the third connecting plate, the second clamping block is fixed on the inner side of the third connecting plate, the inner side of the second connecting plate is provided with a guide groove, the first clamping block is slidably disposed in the guide groove, the first connecting plate is fixed between the two second connecting plates, the outer side of the first connecting plate is provided with a butterfly bolt, the butterfly bolt contacts the first clamping block, the first clamping block and the second clamping block are both provided with V-shaped holes, and the ball joint is placed between the V-shaped holes of the first clamping block and the second clamping block;

[0008] The lever includes an optical axis portion, the bottom of which passes through a ball joint, and an upper platform is provided at the top. A fishing line groove is provided at the bottom of the upper platform. One end of the high-strength, non-elastic fishing line is knotted and placed in the fishing line groove, and the other end is knotted and placed on a force gauge.

[0009] Preferably, the fish line groove is provided with a scale start surface below, and a scale is arranged along the light axis part of the lever.

[0010] Preferably, a fixing ring is further arranged outside the light axis part, and the lever is connected through a locking screw.

[0011] Preferably, a magnetic bubble level is arranged on the upper platform, and the magnetic bubble level is provided with an angle scale.

[0012] The utility model discloses the beneficial effect lies in:

[0013] The utility model discloses a knuckle ball hinge rotation force testing arrangement, through the force gauge combination high strength inelastic fish line, bind on the lever, and the lever is installed in the ball pin position of the middle of knuckle ball hinge according to the force arm requirement, after fixing the ball hinge shell, pull the force gauge until the ball pin and ball hinge shell produce rotation, obtain the force gauge value as the ball hinge rotation force on the basis of requirement force arm, solve the knuckle ball hinge rotation force testing difficult problem on the knuckle. BRIEF DESCRIPTION OF DRAWINGS

[0014] The description accompanying the drawings that form a part hereof illustrates embodiments of the utility model and serves to explain certain principles of the utility model. The utility model is to be construed in accordance with the appended claims, viewed in light of this description, and understood by practices of the utility model and will be best understood from the following detailed description of the utility model when read with the figures appended hereto.

[0015] Figure 1 It is a kind of knuckle ball hinge rotation force testing arrangement's overall structure diagram;

[0016] Figure 2 It is a kind of knuckle ball hinge rotation force testing arrangement's exploded view;

[0017] Figure 3 It is a kind of knuckle ball hinge rotation force testing arrangement's partial schematic view;

[0018] Figure 4 It is a kind of knuckle ball hinge rotation force testing arrangement's application schematic view. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0020] The following detailed description is exemplary in nature and is intended to provide further description of the present application. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the present application is for describing specific embodiments only and is not intended to be limiting of the example embodiments according to the present application.

[0021] Referring to Figure 1 、 Figure 2 As shown in the accompanying drawings, the present application provides a knuckle ball hinge rotating force testing device, which comprises two second connecting plates 13, a third connecting plate 15, a second clamping block 28, a first clamping block 9, a first connecting plate 10, a ball hinge 4, a lever 7, a fixed ring 5, a platform 21, a high-strength non-elastic fishing line 3 and a dynamometer 1.

[0022] The two second connecting plates 13 are fixed to the fourth threaded hole 31 of the third connecting plate 15 through the first bolt 12 passing through the first bolt through hole 27.

[0023] The second clamping block 28 is provided with a third threaded hole 29, and the second clamping block 28 is fixed to the second bolt through hole 32 of the third connecting plate 15 through the second bolt 16.

[0024] The second connecting plate 13 is provided with a guide groove 33 at a corresponding position, and the first clamping block 9 is placed in the guide groove 33 through the protrusion 23 of the first clamping block 9. The protrusion 23 and the guide groove 33 are in clearance fit and can slide relatively freely.

[0025] The first connecting plate 10 is provided with a second threaded hole 25 at two end faces, and is fixed between the two second connecting plates 13 through the first bolt 12.

[0026] The first connecting plate 10 is provided with a first threaded hole 24 in the middle, and the butterfly-shaped bolt 11 passes through the first threaded hole 24. Since the butterfly-shaped bolt 11 and the first threaded hole 24 are in threaded fit, the butterfly structure 26 of the butterfly-shaped bolt 11 can push the first clamping block 9 to move forward.

[0027] The first clamping block 9 is provided with a first V-shaped hole 22, and the second clamping block 28 is provided with a second V-shaped hole 30. The ball hinge 4 is placed between the first V-shaped hole 22 and the second V-shaped hole 30, and the butterfly structure 26 of the butterfly-shaped bolt 11 is rotated to make the first clamping block 9 and the second clamping block 28 hold the ball hinge 4.

[0028] As Figure 3As shown, the upper platform 21 of the lever 7 is provided with a fishing line groove 34, the lower part of the fishing line groove 34 is provided with a scale starting surface 35, and the optical axis part 36 of the lever 7 is provided with a scale 37. According to the required force arm, the fixed ring 5 is moved to the corresponding position of the optical axis part 36, and the fixed ring 5 is fixed by the locking screw 6 passing through the screw hole 17, so as to prevent the relative movement of the lever 7 and the ball hinge 4 on the axis. Then, the lower part of the fixed ring 5 on the lever 7 is placed in the center hole 18 of the ball pin 19 in the ball hinge 4.

[0029] A magnetic bubble level 8 is placed on the platform 21 above the lever 7, and the magnetic bubble level 8 is provided with an angle scale, which can monitor the position of the ball pin 19 in the ball hinge 4 before and during the test. The high-strength inelastic fishing line 3 is knotted and placed in the fishing line groove 34 above the lever 7, and the other end of the high-strength inelastic fishing line 3 is knotted and placed on the hook 2 of the force gauge 1. Embodiment

[0030] The utility model provides a knuckle ball hinge rotation force testing arrangement, and its operation mode is specifically:

[0031] As shown, Figure 4 The ball hinge rotation force testing arrangement 38 is placed in a proper position of the test platform 39, and is fixed by the quick pressing plate 40. Whether the ball hinge 4 is completely fixed is checked, whether the high-strength inelastic fishing line 3 is connected well with the lever 7 and the force gauge 1 is checked, and whether the force arm formed by the lever 7 and the ball hinge 4 meets the requirement of the customer is checked. The force gauge 1 is pulled until the ball pin 19 on the ball hinge 4 rotates, and at this time, the force value on the force gauge 1 is the ball hinge rotation force based on the force arm required by the customer,

[0032] It is to be understood by those skilled in the art that the utility model can be realized by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are merely illustrative in all aspects, and are not the only ones. All changes within the scope of the utility model or within the scope equivalent to the utility model are included in the utility model.

[0033] Finally, it should be noted that: the above examples are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been described in detail with reference to the above examples, those skilled in the art should understand that: the specific implementation of the utility model can still be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A device for testing the rotational power of a steering knuckle ball joint, characterized in that, Includes a force gauge, high-strength non-elastic fishing line, ball joint, lever, first clamping block, first connecting plate, two second connecting plates, third connecting plate and second clamping block; The two second connecting plates are fixed on both sides of the third connecting plate, the second clamping block is fixed on the inner side of the third connecting plate, the inner side of the second connecting plate is provided with a guide groove, the first clamping block is slidably disposed in the guide groove, the first connecting plate is fixed between the two second connecting plates, the outer side of the first connecting plate is provided with a butterfly bolt, the butterfly bolt contacts the first clamping block, the first clamping block and the second clamping block are both provided with V-shaped holes, and the ball joint is placed between the V-shaped holes of the first clamping block and the second clamping block; The lever includes an optical axis portion, the bottom of which passes through a ball joint, and an upper platform is provided at the top. A fishing line groove is provided at the bottom of the upper platform. One end of the high-strength, non-elastic fishing line is knotted and placed in the fishing line groove, and the other end is knotted and placed on a force gauge.

2. The steering knuckle ball joint rotation power testing device as described in claim 1, characterized in that, The area below the fishing line groove is set as the scale starting surface, and the scale is set along the optical axis of the lever.

3. The steering knuckle ball joint rotation power testing device as described in claim 1, characterized in that, It also includes a retaining ring, which is located on the outer side of the optical axis portion and is connected to the lever by a locking screw.

4. The steering knuckle ball joint rotation power testing device as described in claim 1, characterized in that, A magnetic bubble level is placed on the upper platform, and the magnetic bubble level is equipped with an angle scale.

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