Rotation torque detection device of transmission shaft universal joint

Abstract

A rotating torque detection device for a transmission shaft universal joint belongs to the technical field of universal joint torque detection and comprises a fixing disc, a fixing hole is formed in the fixing disc and corresponds to a bolt hole in a connecting disc of a universal joint assembly, and the fixing disc is connected with the connecting disc through a fixing nut and a fixing bolt. Therefore, the fixing disc can be connected with the universal joint assembly. A supporting plate is connected to the edge of the fixing disc, and a transmission square tenon used for installing a torque wrench is arranged at the end, away from the fixing disc, of the supporting plate. The transmission shaft universal joint rotation torque detection device is reasonable in design, simple in structure, convenient to operate, high in verification precision, good in universality, capable of effectively improving the production quality of products, and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joint torque detection, in particular to a rotational torque detection device for a transmission shaft universal joint. Background Art

[0002] The drive shaft is the shaft that transmits torque between the car gearbox and the axle. It is a high-speed, low-support rotating body. When the car is driving, facing ups and downs in road conditions, the transmitted power will not be a straight line, which requires the drive shaft to be able to transmit torque and speed at a certain deflection angle, and the universal joint is the key part that enables the drive shaft to swing up, down, left and right. If the torque is too large when the universal joint swings, it will accelerate the wear of the universal joint and reduce the life of the vehicle; if the universal joint swing torque is too small, it will affect the chassis NVH performance at the least, and cause chassis resonance at the worst, thus causing the drive shaft to break.

[0003] Therefore, before the drive shaft leaves the factory, it is necessary to check the torque of the universal joint when it is swinging, to ensure that the drive shaft can meet the use requirements after the vehicle is assembled. At present, in actual production, the staff generally use manual labor to swing the universal joint to the maximum angle, and then use the feedback of hand strength to manually feel the size of the torque, so as to check whether the swing torque of the universal joint meets the standard.

[0004] Although the above-mentioned existing operation method can calibrate the universal joint, it still has the following shortcomings during actual use: since people's perceptions are different and there are large deviations, this traditional calibration method cannot achieve accurate calibration of the universal joint torque and the calibration accuracy is low. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of low calibration accuracy in the prior art and to provide a transmission shaft universal joint torque detection device, which has reasonable design, simple structure, convenient operation, high calibration accuracy, good versatility, can effectively improve the production quality of products, and is suitable for promotion.

[0006] The utility model is realized through the following technical scheme: a rotational torque detection device for a transmission shaft universal joint, comprising a fixed plate, a fixing hole is opened on the fixed plate, the fixing hole corresponds to the bolt hole on the connecting plate of the universal joint assembly, the fixed plate and the connecting plate are connected by fixing nuts and fixing bolts, so that the fixed plate can be connected to the universal joint assembly; a support plate is connected to the edge of the fixed plate, and a transmission square tenon for installing a torque wrench is arranged at one end of the support plate away from the fixed plate.

[0007] A further improvement of the utility model is that the transmission square tenon is connected with a screw rod, a connecting hole corresponding to the screw rod is opened on the support plate, and the transmission square tenon is connected to the support plate through the screw rod and a connecting nut.

[0008] A further improvement of the utility model is that a positioning disc tooth is arranged on one side of the fixed disc facing the connecting disc, and the positioning disc tooth is meshed with the disc teeth on the connecting disc.

[0009] A further improvement of the utility model is that the fixing plate is a circular structure.

[0010] A further improvement of the utility model is that the support plate is an isosceles triangle structure, and the bottom edge of the support plate is connected to the edge of the fixed plate.

[0011] A further improvement of the utility model is that the fixing plate and the supporting plate are perpendicular to each other.

[0012] A further improvement of the utility model is that a welding stopper matched with the support plate is provided at the edge of the fixing plate, and the fixing plate and the support plate are welded.

[0013] A further improvement of the utility model is that a coaxial weight-reducing hole is provided at the center of the fixed disk.

[0014] A further improvement of the utility model is that the fixing hole and the connecting hole are both slide slot holes.

[0015] A further improvement of the utility model is that the transmission square tenon is a hexagonal square tenon.

[0016] From the above technical scheme, it can be seen that the beneficial effects of the utility model are as follows: the staff can install the fixed plate on the universal joint assembly by fixing the nut and the fixing bolt. After the fixed plate is installed, the staff can install the torque wrench through the transmission square tenon; during calibration, the staff can accurately read the torque size through the cooperation between the torque wrench and the transmission square tenon. The whole operation process is very convenient and the calibration accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0019] Figure 2 It is a usage state diagram of a specific embodiment of the utility model.

[0020] Figure 3 It is a structural schematic diagram of a fixed disk of a specific embodiment of the utility model.

[0021] Figure 4 It is a structural schematic diagram of a support plate of a specific embodiment of the utility model.

[0022] Figure 5 It is a structural schematic diagram of a transmission square tenon of a specific embodiment of the utility model.

[0023] 1. Fixed plate; 101. Fixed hole; 102. Positioning plate tooth; 103. Weight reduction hole; 2. Support plate; 201. Connecting hole; 3. Transmission square tenon; 4. Connecting nut; 5. Torque wrench; 6. Connecting plate; 7. Fixed nut; 8. Fixed bolt; 9. Universal joint assembly. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] Please refer to the attached Figure 1-5 , combined with a specific embodiment, it is explained as follows: The utility model is a transmission shaft universal joint torque detection device, including a circular fixed plate 1, the fixed plate 1 is provided with a fixing hole 101, the fixing hole 101 corresponds to the bolt hole on the connecting plate 6 of the universal joint assembly 9, the fixed plate 1 and the connecting plate 6 are connected by a fixing nut 7 and a fixing bolt 8, so that the fixed plate 1 can be connected to the universal joint assembly 9.

[0026] The edge of the fixed disk 1 is connected to a support plate 2 of an isosceles triangle structure, the fixed disk 1 and the support plate 2 are perpendicular to each other, and the bottom edge of the support plate 2 is connected to the edge of the fixed disk 1. Specifically, a welding stopper matched with the support plate 2 is opened at the edge of the fixed disk 1, and the fixed disk 1 and the support plate 2 are welded.

[0027] The end of the support plate 2 away from the fixed plate 1 is provided with a transmission square tenon 3 for mounting a torque wrench 5, wherein the transmission square tenon 3 is a hexagonal square tenon, and the torque wrench 5 is a digital torque wrench. Specifically, the transmission square tenon 3 is connected with a screw rod, and a connecting hole 201 corresponding to the screw rod is opened on the support plate 2, and the transmission square tenon 3 is connected to the support plate 2 through the screw rod and the connecting nut 4.

[0028] The working principle of the utility model is as follows: the staff installs the fixed plate 1 on the connecting plate 6 through the fixing nut 7 and the fixing bolt 8, that is, the fixed plate 1 is installed on the universal joint assembly 9; after the fixed plate 1 is installed, the staff then installs the torque wrench 5 through the transmission square tenon 3. Since the torque wrench 5 is a digital torque wrench, during calibration, the staff can accurately read the torque size through the cooperation between the torque wrench 5 and the transmission square tenon 3, thereby greatly improving the calibration accuracy.

[0029] In one embodiment, a positioning disc tooth 102 is provided on the side of the fixed disc 1 facing the connecting disc 6, and the positioning disc tooth 102 is meshed with the disc teeth on the connecting disc 6. This meshing structure can greatly improve the stability between the fixed disc 1 and the connecting disc 6, thereby avoiding the problem of relative sliding between the fixed disc 1 and the universal joint assembly 9.

[0030] In one embodiment, a coaxial weight-reducing hole 103 is provided at the center of the fixing plate 1. The weight-reducing hole 103 can reduce the overall weight of the device, ensure lightweight, and save processing materials.

[0031] In one embodiment, the fixing hole 101 and the connecting hole 201 are both slide slot holes. The transmission square tenon 3 can slide along the connecting hole 201 through the cooperation between the connecting hole 201 and the screw rod and the connecting nut 4, so that it can be used for universal joint assemblies 9 of different specifications to ensure that the axis of the transmission square tenon 3 coincides with the axial direction of the universal joint assembly 9. At the same time, the fixing plate 1 can also be used for universal joint assemblies 9 of different specifications through the cooperation between the fixing hole 101 and the fixing nut 7 and the fixing bolt 8, ensuring its versatility.

[0032] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0033] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A torque detection device for a transmission shaft universal joint, comprising a fixed plate (1), characterized in that: The fixing plate (1) is provided with a fixing hole (101), the fixing hole (101) corresponds to a bolt hole on a connecting plate (6) of a universal joint assembly (9), the fixing plate (1) and the connecting plate (6) are connected via a fixing nut (7) and a fixing bolt (8), so that the fixing plate (1) and the universal joint assembly (9) can be connected; a support plate (2) is connected to the edge of the fixing plate (1), and a transmission square tenon (3) for mounting a torque wrench (5) is provided at one end of the support plate (2) away from the fixing plate (1).

2. The rotational torque detection device of a transmission shaft universal joint according to claim 1, characterized in that: The transmission square tenon (3) is connected to a screw rod, a connection hole (201) corresponding to the screw rod is provided on the support plate (2), and the transmission square tenon (3) is connected to the support plate (2) via the screw rod and a connection nut (4).

3. A transmission shaft universal joint torque detection device according to claim 1 or 2, characterized in that: A positioning disc tooth (102) is provided on one side of the fixed disc (1) facing the connecting disc (6), and the positioning disc tooth (102) meshes with the disc teeth on the connecting disc (6).

4. The rotational torque detection device of a transmission shaft universal joint according to claim 3, characterized in that: The fixed plate (1) is a circular structure.

5. The rotational torque detection device of a transmission shaft universal joint according to claim 4, characterized in that: The support plate (2) is an isosceles triangle structure, and the bottom edge of the support plate (2) is connected to the edge of the fixed plate (1).

6. The rotational torque detection device of a transmission shaft universal joint according to claim 5, characterized in that: The fixing plate (1) and the supporting plate (2) are perpendicular to each other.

7. The rotational torque detection device of a transmission shaft universal joint according to claim 6, characterized in that: A welding stopper matched with the support plate (2) is provided at the edge of the fixing plate (1), and the fixing plate (1) and the support plate (2) are welded together.

8. The rotational torque detection device of a transmission shaft universal joint according to claim 7, characterized in that: A coaxial weight-reducing hole (103) is provided at the center of the fixing plate (1).

9. The rotational torque detection device of a transmission shaft universal joint according to claim 8, characterized in that: The fixing hole (101) and the connecting hole (201) are both slide slot holes.

10. The rotational torque detection device of a transmission shaft universal joint according to claim 9, characterized in that: The transmission square tenon (3) is a hexagonal square tenon.

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