CN214888747U

CN214888747U - Gear box convenient to test vibration signal

Info

Publication number: CN214888747U
Application number: CN202022012015.3U
Authority: CN
Inventors: 林何; 孟渔航; 李瑞华
Original assignee: Xian Polytechnic University
Current assignee: Xian Polytechnic University
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-11-26
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a gear box convenient to test vibration signal, including the box, be provided with driven input shaft, jackshaft and output shaft in proper order in the box, input shaft and output shaft stretch out respectively outside the box, have cup jointed the collector ring on the input shaft, and the collector ring is fixed on the box inner wall. The utility model aims to solve the problem that the thread head is strained and the rotating shaft is fractured in the process due to the rotation of the conventional measuring method.

Description

Gear box convenient to test vibration signal

Technical Field

The utility model belongs to gear system power equipment relates to a gear box convenient to test vibration signal.

Background

The gear box is also called as a speed reducer and a gear reduction box, is a speed reduction transmission mechanism, is used for reducing speed or increasing torque through a mechanical device, has compact structure and high bearing capacity, and can meet the requirement of small space and high torque output.

Nowadays, gear reducers are widely used in various industries, and high-power gear reducers are used in conveying and chemical equipment, steel electric machinery, mixers, cranes, and the like. The low-power gear reducer is applied to the fields of automobile transmission, intelligent material transportation systems and the like.

The traditional method for measuring the vibration signals of the gear box inner gear is to install an acceleration sensor on an end cover of a bearing outside the gear box, the vibration signal extraction technology of the gear box is based on the fact that a shaft, a gear and the bearing in the gear box can vibrate in a working state, gravity can be generated during working movement and then converted into a certain signal to be transmitted to a control device, once vibration is generated, at least one path of the acceleration sensor X, Y, Z can generate signal output, and the signal is output to a display device such as a computer by detecting the frequency generated by the vibration of a measured object; the intensity of the vibration is closely related to the type, degree, position, cause and the like of the main frequency components contained in the vibration and the fault.

The traditional method can cause a lot of internal and external interference in the process of extracting signals, for example, the signals pass through a bearing end cover, a bearing, a gear and each transmission shaft, so that the signals are gradually weakened in transmission, the measurement result is inaccurate, and in the working process, the phenomena of sprain and fracture can be caused by the ceaseless rotation of a wire end.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gear box convenient to test vibration signal has solved and has adopted conventional measuring method to cause the thread end to sprain and the problem of pivot fracture phenomenon because of rotating in the process.

The utility model adopts the technical proposal that:

the utility model provides a gear box convenient to test vibration signal, includes the box, is provided with driven input shaft, jackshaft and output shaft in proper order in the box, and input shaft and output shaft stretch out outside the box respectively, have cup jointed the collector ring on the input shaft, and the collector ring is fixed on the box inner wall.

The utility model is also characterized in that,

the input shaft, the intermediate shaft and the output shaft are arranged in parallel.

The two ends of the input shaft, the intermediate shaft and the output shaft are fixed in the box body through bearings.

The input shaft is sleeved and fixed with a first gear, the first gear is meshed with a third gear, and the third gear is sleeved and fixed on the intermediate shaft.

The intermediate shaft is also sleeved and fixed with a second gear, the second gear is meshed with a fourth gear, and the fourth gear is sleeved and fixed on the output shaft.

The fixing mode of the collecting ring is as follows: the stator end of the collector ring is fastened to the box body through matched screws, and the rotor of the collector ring is fastened to the input shaft through the matched screws.

The utility model has the advantages that:

the utility model discloses not only can be under the operational environment who lasts the rotation transmit signal, also can improve the system performance moreover, simplified the process of extracting each part vibration signal in the gear box.

Drawings

FIG. 1 is a schematic structural view of a gear box for facilitating the testing of vibration signals according to the present invention;

fig. 2 is an assembly view of the utility model discloses a gear box when being convenient for test vibration signal uses.

In the figure, 1, an input shaft, 2, a collector ring, 3, a first gear, 4, a second gear, 5, a third gear, 6, a middle shaft, 7, an output shaft, 8, a fourth gear, 9, a box body, 10, a coupler, 11, a controllable loader, 12, a driving motor, 13, a master controller, 14 and a computer.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Like fig. 1, the utility model relates to a gear box convenient to test vibration signal, including box 9, be provided with driven input shaft 1, jackshaft 6 and output shaft 7 in proper order in the box 9, outside input shaft 1 and output shaft 7 stretched out to box 9 respectively, had cup jointed slip ring 2 on the input shaft 1, and slip ring 2 fixes on box 9 inner wall.

The fixing mode of the collecting ring 2 is as follows: the stator end of the slip ring 2 is fastened to the casing 9 by means of matching screws, and the rotor of the slip ring 2 is fastened to the input shaft 1 by means of matching screws. The material of the slip ring 2 needs to have high mechanical strength, good electrical conductivity, and corrosion resistance, and to have wear resistance and stable sliding contact characteristics when making sliding contact with the brush.

The input shaft 1, the intermediate shaft 6 and the output shaft 7 are arranged in parallel, and two ends of the input shaft 1, the intermediate shaft 6 and the output shaft 7 are fixed in the box body 9 through bearings.

A first gear 3 is sleeved and fixed on the input shaft 1, the first gear 3 is meshed with a third gear 5, and the third gear 5 is sleeved and fixed on an intermediate shaft 6; the intermediate shaft 6 is also sleeved and fixed with a second gear 4, the second gear 4 is meshed with a fourth gear 8, and the fourth gear 8 is sleeved and fixed on an output shaft 7.

The first gear 3, the second gear 4, the third gear 5 and the fourth gear 8 can adopt straight gears or helical gears.

When the utility model is used, as shown in fig. 2, wherein the extending part of the input shaft 1 is connected with the driving motor 12 through the shaft coupling, the collector ring 2 is connected with the master controller 13, and if the gear vibration signals on the rest shafts need to be extracted, the collector rings can be respectively arranged at the bearing end covers of the intermediate shaft 6 and the output shaft 7; the output shaft 7 is connected with a 110KW-1500/rpm controllable load device 11 through a coupler 10, the controllable load device 11 is fixed on a workbench through a fastening bolt, a temperature sensor, a torque sensor and a rotating speed sensor are arranged in the controllable load device 11, signals are transmitted to a master controller 13 through corresponding program control lines, all obtained signals are gathered through the master controller 13, and the master controller is connected with a computer 14 through a program control bus.

When the controllable loading device works, the controllable loading device 11 is turned on to provide stable loading, the driving motor 12 is started to drive the input shaft 1 of the gear box to rotate through the coupler 10, the third gear 5 is driven through the first gear 3 to drive the intermediate shaft 6 to rotate, and the fourth gear 8 and the output shaft 7 are driven to rotate through the second gear 4; if vibration on each pair of gears needs to be measured, the collector rings 3 are respectively arranged at the bearing end covers of the input shaft 1, the intermediate shaft 6 and the output shaft 7, if vibration of one on-shaft gear only needs to be measured, the collector rings 2 can be arranged on corresponding test shafts, then the signal acquisition wire leading-out box body of the collector rings 3 is connected with the master controller 13, and under the working state that the collector rings 3 rotate continuously, vibration signals such as bearings, shafts and gears in the gear box body can be extracted and transmitted to the master controller 13 through program control wires; signals obtained by a rotating speed sensor program control line led out by a controllable load 11 and a driving motor 12, a temperature sensor program control line and a torque sensor program control line are connected and transmitted to a master controller 13, the master controller 13 summarizes the obtained vibration frequency output signals of the object to be measured, the signals are connected with a computer 14 through the master program control line, and various fault characteristic information can be analyzed through corresponding signal processing software and technology to judge fault positions, so that the gear transmission vibration signals can be measured in the gear box.

Claims

1. The utility model provides a gear box convenient to test vibration signal, its characterized in that, includes box (9), be provided with in proper order driven input shaft (1), jackshaft (6) and output shaft (7) in box (9), stretch out respectively outside box (9) input shaft (1) and output shaft (7), collecting ring (2) have been cup jointed on input shaft (1), collecting ring (2) are fixed on box (9) inner wall.

2. A gearbox for facilitating the testing of vibration signals according to claim 1, characterised in that the input shaft (1), the intermediate shaft (6) and the output shaft (7) are arranged in parallel.

3. A gearbox for facilitating the testing of vibration signals according to claim 2, characterised in that the input shaft (1), the intermediate shaft (6) and the output shaft (7) are fixed at both ends in the housing (9) by bearings.

4. A gearbox for facilitating the testing of vibration signals according to claim 1, characterised in that a first gear (3) is sleeved and fixed on the input shaft (1), the first gear (3) is meshed with a third gear (5), and the third gear (5) is sleeved and fixed on the intermediate shaft (6).

5. A gearbox for facilitating the testing of vibration signals according to claim 1, characterised in that a second gear (4) is also sleeved and fixed on the intermediate shaft (6), the second gear (4) is meshed with a fourth gear (8), and the fourth gear (8) is sleeved and fixed on the output shaft (7).

6. A gearbox for facilitating the testing of vibration signals according to claim 1, characterized in that the slip ring (2) is fixed in such a way that: and the stator end of the collecting ring (2) is fastened on the box body (9) through matched screws, and the rotor of the collecting ring (2) is fastened on the input shaft (1) through matched screws.