Gearbox output shaft flange runout testing device

Abstract

A gearbox output shaft flange runout testing device belongs to the technical field of mechanical gearboxes and comprises an output shaft of a gearbox, an output shaft flange and a rear bearing cover. The output shaft flange is connected with a tool A, the tool A comprises a fixing part and a testing part, the fixing part is in bolted connection with the output shaft flange, and one side, far away from the output shaft flange, of the fixing part is fixedly connected with one end of the testing part. A tool B and a tool C are arranged on the rear bearing cover in the axial direction at intervals, the bottom end of the tool B and the bottom end of the tool C are connected with the rear bearing cover through bolts, infrared detectors are fixed to the top end of the tool B and the top end of the tool C, and an output rotating speed sensor close to the tool C is arranged on the rear bearing cover. The gearbox output shaft flange runout testing device is reasonable in design, simple in structure, low in manufacturing cost, flexible, simple and convenient to install and fix the deflection instrument and the infrared detector, capable of improving working efficiency and testing precision, high in practicability and suitable for popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical gearbox technical field especially relates to a gearbox output shaft flange bounce testing arrangement. BACKGROUND

[0002] The output shaft of the mechanical gearbox is an important component in the gearbox, usually referred to as "two shafts", is the shaft used for output power in the automobile gearbox. It is located inside the gearbox, connected with the transmission shaft and the reducer, responsible for transmitting the speed adjusted by the gearbox, so as to drive the car to run. When the engine starts, the power is transmitted to the input shaft (one shaft) of the gearbox through the clutch. Then, through the gear on the input shaft and the gear on the intermediate shaft, and the gear on the intermediate shaft and the gear on the output shaft of the gearbox, the power is transformed and transmitted. Finally, the transformed power is transmitted to the drive shaft through the output shaft, driving the car to run.

[0003] The mechanical gearbox output shaft is widely used in various types of cars, including cars, SUVs, MPVs and commercial vehicles. Different types of cars may have different requirements for the gearbox output shaft, but the basic principles and functions are similar. Among them, the commercial vehicle mechanical gearbox output shaft and the vehicle transmission shaft connection end will appear abnormal jitter, the vehicle NVH value often cannot meet the standard requirements because of the high value at this place, and even some AMT gearbox will appear output speed signal abnormality, which greatly reduces the user's driving comfort. Designers usually use measures such as optimizing the gearbox output shaft flange and output shaft spline compatibility level control spline side clearance, improving the flange end surface tooth precision and improving the transmission shaft machining precision to improve the user's driving comfort.

[0004] Although the above measures can improve the driving comfort, there are still some shortcomings in the actual use process: the series of measures, the quantitative values required before and after optimization, are often obtained by testing the gearbox output shaft flange diameter jump value through the deflection instrument and infrared detector. It is difficult to install and fix the deflection instrument and infrared detector under the condition of gearbox detection, even under the condition of gearbox connecting transmission shaft, the work efficiency is low, and the test accuracy is low. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the existing technology's deflection instrument and infrared detector's installation and fixation difficulty, low work efficiency and low test accuracy, provides a gearbox output shaft flange bounce testing arrangement, which has reasonable design, simple structure, low manufacturing cost, flexible and simple installation and fixation of deflection instrument and infrared detector, not only can improve work efficiency, but also can improve test precision, has higher practicality and is suitable for promotion.

[0006] The utility model discloses a transmission output shaft flange runout testing device, including the output shaft of transmission, the output shaft flange of assembling on the output shaft and the rear bearing cover of assembling on the output shaft, and the output shaft flange is connected with tool A, and tool A includes fixed part and testing part, and the fixed part is bolted with the output shaft flange, and the side away from the output shaft flange of fixed part is fixedly connected with one end of testing part, and fixed part, testing part and the coaxial heart of output shaft, and the rear bearing cover is provided with tool B and tool C along the axial interval, and the bottom of tool B, tool C is bolted with the rear bearing cover, and the top of tool B, tool C is fixed with infrared detector, and the rear bearing cover is provided with the output rotation speed sensor close to tool C.

[0007] The device meets the installation of two infrared detectors through the design of tool B and tool C, the infrared detector installed on tool B is used for testing the vibration value of any point of the output shaft flange, and the infrared detector installed on tool C is used for testing the vibration value near the output rotation speed sensor.

[0008] The further improvement of the utility model still has, the fixed part is disc body form, the testing part is cylindrical form, the fixed part and the testing part form " T " type between, and the fixed part and the testing part are all hollow structure. Through adopting this " T " type hollow design tool, can promote the stability between fixed part and output shaft flange, thereby reduce the end jump of fixed part and output shaft flange side.

[0009] The further improvement of the utility model still has, the outside of testing part and the end face away from fixed part adopt machining, and the roughness requirement is Ra3.2. The outside circle, hole, end face of testing part of tool A are all machining surface, and the roughness requirement is Ra3.2, reduces the diameter jump and end jump of testing part itself.

[0010] The further improvement of the utility model still has, the end jump of fixed part and output shaft flange side is less than 0.01.

[0011] The further improvement of the utility model still has, the diameter jump and end jump of testing part itself are less than 0.

[0012] The further improvement of the utility model still has, the fixed part is provided with the long round bolt hole compatible with output shaft flange. Through the design of the long round bolt hole, the fixed part can adapt to different models of output shaft flange, greatly improve the application range of the device.

[0013] The further improvement of the utility model still has, tool B and tool C are all " Z " type structure. The above-mentioned " Z " type design is more reasonable, simple structure and convenient to assemble, greatly reduce the assembly cost.

[0014] The further improvement of the utility model still has, the steel plate of thickness of 5mm is stamped into shape for tooling B and tooling C.

[0015] The further improvement of the utility model still has, the included angle between tooling B and tooling C is obtuse.

[0016] The further improvement of the utility model still has, the light source of two infrared detectors can vertically emit on the output shaft flange.

[0017] From the above technical scheme, the beneficial effects of the utility model are: the outer circle and end of the testing part of tooling A are deflection instrument testing positions. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0019] Figure 1 It is the structure schematic view of the embodiment of the utility model.

[0020] Figure 2 It is the right view of Figure 1 .

[0021] Figure 3 It is the use state principle view of the utility model.

[0022] 1, output shaft flange;2, tooling A;201, fixed part;202, testing part;3, tooling B;4, tooling C;5, rear bearing cover;6, output speed sensor;7, infrared detector. CONCRETE IMPLEMENTING METHOD

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] Please refer to the attached document. Figures 1-3 The following is a description of a specific embodiment: The gearbox output shaft flange runout testing device of this utility model includes a gearbox output shaft, an output shaft flange 1 mounted on the output shaft, and a rear bearing cover 5 mounted on the output shaft. The output shaft flange 1 is connected to a fixture A2, which includes a fixing part 201 and a testing part 202. The fixing part 201 is bolted to the output shaft flange 1, and the side of the fixing part 201 away from the output shaft flange 1 is fixedly connected to one end of the testing part 202. The fixing part 201, the testing part 202 and the output shaft are coaxial.

[0025] Specifically, the fixing part 201 is in the form of a disc, and the testing part 202 is in the form of a cylinder. The fixing part 201 is used to connect to the output shaft flange 1, and the testing part 202 is used for runout detection. The outer circle of the testing part 202 and the end away from the fixing part 201 are machined with a surface roughness requirement of Ra3.2. The fixing part 201 and the testing part 202 form a "T" shape, and both the fixing part 201 and the testing part 202 are hollow structures.

[0026] Fixture A2 can be firmly fixed to the output shaft flange 1 through the fixing part 201, reducing the end runout of the connection end between fixture A2 and the output shaft flange 1, thereby making the end runout on the side connected to the output shaft flange 1 less than 0.01; the outer circle, inner hole and end face of the testing part 202 of fixture A are all machined surfaces with a surface roughness requirement of Ra3.2, reducing the radial runout and end runout of the testing part 202 itself, thereby making the radial runout and end runout of the testing part 202 itself less than 0.01; it can be seen that by adopting this "T"-shaped hollow design of fixture A2, the runout testing accuracy of the output shaft flange 1 can be greatly improved.

[0027] Tooling B3 and tooling C4 are provided axially at intervals on the rear bearing cover 5. The bottom ends of tooling B3 and tooling C4 are bolted to the rear bearing cover. An infrared detector 7 is fixed to the top of tooling B3 and tooling C4. An output speed sensor 6 is provided on the rear bearing cover 5 near tooling C4.

[0028] The device meets the installation of two infrared detectors 7 through the design of tool B3 and tool C4, the infrared detector 7 installed on tool B3 is used for testing the vibration value of any point of the output shaft flange 1, and the infrared detector 7 installed on tool C4 is used for testing the vibration value near the output speed sensor 6.

[0029] The use principle of the utility model is as follows: Figure 3 The outer circle and the end part of the testing part 202 of tool A are the testing positions of the deflection instrument. According to the existing testing technology, the staff can find the appropriate position and fix by using the magnet of the deflection instrument, so that the probe of the deflection instrument is close to the testing position marked in Figure 3 It should be noted that the parallelism and height of tool B3 and tool C4 should be reasonable, so as to ensure that the light source of the infrared detector 7 is vertically emitted to the specified position on the output shaft flange 1. When testing is needed, the staff can test the run-out value of any point on the output shaft flange through the infrared detector 7 installed on tool B3, and test the run-out value near the output speed sensor 6 through the infrared detector 7 installed on tool C4.

[0030] In one of the embodiments, a long circular bolt hole matched with the output shaft flange 1 is formed in the fixing part 201. Through the design of the long circular bolt hole, the fixing part 201 can adapt to different models of the output shaft flange 1, which greatly improves the application range of the device.

[0031] In one of the embodiments, tool B3 and tool C4 are both in the shape of "Z". The design of the "Z" shape is more reasonable, simple in structure and convenient to assemble, which greatly reduces the assembly cost.

[0032] In one of the embodiments, tool B3 and tool C4 are both stamped from a steel plate with a thickness of 5mm. Through the above design, tool B3 and tool C4 can not only reduce the processing difficulty, but also meet the required structural strength.

[0033] In one of the embodiments, the included angle between tool B3 and tool C4 is obtuse. The above design is more reasonable and can meet the testing needs of the staff.

[0034] The embodiments in the specification are described in a progressive manner, and each embodiment mainly describes the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0035] The terms "upper", "lower", "outer" "inner" and the like in the description and the claims of the present utility model and the above drawings, if any, are used to distinguish relative positions, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0036] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gearbox output shaft flange runout testing device, comprising a gearbox output shaft, an output shaft flange (1) mounted on the output shaft, and a rear bearing cover (5) mounted on the output shaft, characterized in that, The output shaft flange (1) is connected to a fixture A (2). The fixture A (2) includes a fixing part (201) and a testing part (202). The fixing part (201) is bolted to the output shaft flange (1). The side of the fixing part (201) away from the output shaft flange (1) is fixedly connected to one end of the testing part (202). The fixing part (201) and the testing part (202) are coaxial with the output shaft. The rear bearing cover (5) is provided with fixtures B (3) and C (4) at intervals along the axial direction. The bottom ends of fixtures B (3) and C (4) are bolted to the rear bearing cover (5). The top ends of fixtures B (3) and C (4) are fixed with infrared detectors (7). The rear bearing cover (5) is provided with an output speed sensor (6) near fixture C (4).

2. The gearbox output shaft flange runout testing device according to claim 1, characterized in that, The fixing part (201) is in the form of a disc, and the testing part (202) is in the form of a cylinder. The fixing part (201) and the testing part (202) form a "T" shape, and both the fixing part (201) and the testing part (202) are hollow structures.

3. The gearbox output shaft flange runout testing device according to claim 2, characterized in that, The outer surface of the test section (202) and the end face away from the fixed section (201) are machined with a surface roughness requirement of Ra3.

2.

4. The gearbox output shaft flange runout testing device according to claim 3, characterized in that, The end runout between the fixed part (201) and the output shaft flange (1) is less than 0.

01.

5. The gearbox output shaft flange runout testing device according to claim 4, characterized in that, The radial runout and end runout of the test unit (202) are less than 0.

01.

6. The gearbox output shaft flange runout testing device according to claim 5, characterized in that, The fixing part (201) has an elongated bolt hole that is compatible with the output shaft flange (1).

7. A gearbox output shaft flange runout testing device according to claim 1 or 6, characterized in that, Tooling B (3) and tooling C (4) are both "Z" shaped structures.

8. The gearbox output shaft flange runout testing device according to claim 7, characterized in that, Tooling B (3) and tooling C (4) are both made of steel plate with a thickness of 5mm by stamping.

9. The gearbox output shaft flange runout testing device according to claim 8, characterized in that, The angle between tooling B (3) and tooling C (4) is an obtuse angle.

10. The gearbox output shaft flange runout testing device according to claim 9, characterized in that, The light sources of both infrared detectors (7) can be emitted vertically onto the output shaft flange (1).

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