CN210108722U - Double gear case fault diagnosis test bench - Google Patents
Double gear case fault diagnosis test bench Download PDFInfo
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- CN210108722U CN210108722U CN201921086114.7U CN201921086114U CN210108722U CN 210108722 U CN210108722 U CN 210108722U CN 201921086114 U CN201921086114 U CN 201921086114U CN 210108722 U CN210108722 U CN 210108722U
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Abstract
The utility model discloses a double gear case fault diagnosis test bench, including variable speed driving motor, variable speed driving motor support, first shaft coupling, planetary gear box upper bracket, temperature sensor A, second shaft coupling, parallel shaft gear box, temperature sensor B, eddy current displacement sensor A, magnetic powder brake support, third shaft coupling, dynamic torque sensor base, dynamic torque sensor, fourth shaft coupling, test bench supporting legs, eddy current displacement sensor B, planetary gear box undersetting, test bench anti vibration base, control system. The utility model discloses enlarged the service function of test bench, satisfied many trouble fault diagnosis research's that appears simultaneously requirement.
Description
Technical Field
The utility model relates to a mechanical failure diagnosis technical field, concretely relates to double gear case failure diagnosis test bench.
Background
The gear box is widely applied in the field of mechanical transmission, and has the main functions of: realize accelerating or slowing down, change transmission direction, change turning moment, realize separation and reunion function and distribution power etc. and the gear box can bear various alternating load for a long time in the course of the work, the effect of impact and frictional force or each spare part thereof have the manufacturing defect, this will lead to the gear box spare part to take place the damage, the emergence of these troubles can make transmission system produce the noise, aggravate the degree of wear, reduce equipment life, directly damage whole mechanical equipment even, influence the enterprise production progress and cause great economic loss, or cause the threat to personal safety. Therefore, in order to reduce the risk of economic loss or other adverse consequences, the gearbox can be diagnosed at the early stage of fault, and then scheduled to be overhauled in time, so that the production benefit of an enterprise is maximized, and other adverse consequences are avoided.
Among the fault diagnosis methods, the vibration signal analysis method is the one with the longest development time and the best practicability. The basic idea of using vibration signal analysis for gearbox fault diagnosis can be summarized as follows: simulating a working condition, replacing different types of fault gears, collecting original vibration signal data by using a sensor, and processing and identifying the data by using a control system and a computer; when the gear box actually works, original vibration signal data are collected in real time, and the computer compares the real-time collected data with the vibration signal data of the fault gear, so that fault identification and diagnosis can be completed, and the specific working state of the gear box can be known.
In the research process, if a gearbox in practical application is taken as a research object, the possibility of simultaneously generating multiple fault types is very low, but the fault types to be designed in theoretical research are as comprehensive as possible; different fault gears need to be continuously replaced in test research, and the traditional diagnosis test bed is troublesome to disassemble and assemble and is not easy to replace the gears. Therefore, a gear diagnosis system that can simultaneously contain multiple failure types, is easy to assemble and disassemble, and is easy to replace is important.
The actual working environment of the gearbox is complex and changeable, and the traditional fault diagnosis test bed has few influence factors on the aspect, so that different actual working conditions need to be considered in designing the planetary gearbox fault diagnosis test bed, and different working environments need to be considered. However, it is common for a plurality of gearboxes to work together in actual work, so that it is necessary to assemble two or more gearboxes on the test bed for research.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a double gear case failure diagnosis test bench to the not enough of prior art to many faults appear simultaneously in the gear drive failure diagnosis research that mentions in solving above-mentioned background, traditional failure diagnosis test bench gear box is single and the dismouting is troublesome, the difficult problem of gear change.
The technical scheme is as follows: the utility model relates to a double gear case fault diagnosis test bench, including variable speed driving motor, variable speed driving motor support, first shaft coupling, planetary gear case upper bracket, temperature sensor A, second shaft coupling, parallel shaft gear case, temperature sensor B, electric eddy current displacement sensor A, magnetic powder brake support, third shaft coupling, dynamic torque sensor base, dynamic torque sensor, fourth shaft coupling, test bench supporting legs, electric eddy current displacement sensor B, planetary gear case lower bracket, test bench anti vibration base, control system;
the variable-speed driving motor is connected with an input shaft of the planetary gear box through a first coupler, an output shaft of the planetary gear box is connected with an input shaft of the parallel-shaft gear box through a second coupler, an output shaft of the parallel-shaft gear box is connected with the dynamic torque sensor through a third coupler, and the other end of the dynamic torque sensor is connected with the magnetic powder brake through a fourth coupler;
the variable-speed driving motor is arranged on the variable-speed driving motor support; the planetary gear box is arranged on an upper support of the planetary gear box, and the upper support of the planetary gear box is arranged on a lower support of the planetary gear box; the dynamic torque sensor is arranged on the dynamic torque sensor base; the magnetic powder brake is arranged on the magnetic powder brake support;
the variable speed driving motor support, the parallel shaft gear box, the planetary gear box lower support, the dynamic torque sensor base, the magnetic powder brake support and the control system are all arranged on the test bed anti-vibration base; the bottom of the test bed anti-vibration base is provided with a test bed supporting leg;
a temperature sensor A and an eddy current displacement sensor B are mounted on the planetary gear box; and a temperature sensor B and an eddy current displacement sensor A are mounted on the parallel shaft gear box.
Preferably, the planetary gearbox comprises a left planetary gearbox body and a right planetary gearbox body, and the left planetary gearbox body and the right planetary gearbox body are connected through a ring gear bolt; the planetary gear box left box body comprises a planetary gear box left box body upper seat and a planetary gear box left box body lower seat, and the planetary gear box right box body comprises a planetary gear box right box body lower seat and a planetary gear box right box body upper seat; an input shaft is arranged on the right box body of the planetary gear box, a bearing A and a bearing B are arranged on the input shaft, and a sun gear is arranged at the inner end part of the input shaft; the sun wheel is meshed with the planet wheel A, the planet wheel B and the planet wheel C, and the planet wheel A, the planet wheel B and the planet wheel C are meshed with the gear ring; an output shaft is mounted on the left box body of the planetary gear box, the output shaft is connected with a planetary carrier, and the planetary carrier is connected with a planetary gear A, a planetary gear B and a planetary gear C through bolts; bearing end covers A are mounted at the outer end parts of the input shaft and the output shaft on the planetary gear box through bolts, and a temperature sensor A, an eddy current displacement sensor A, a temperature sensor A and an eddy current displacement sensor A are mounted on the two bearing end covers A.
Preferably, the parallel shaft gearbox comprises a parallel shaft gearbox lower box body and a parallel shaft gearbox upper box body, and the parallel shaft gearbox lower box body is connected with the parallel shaft gearbox upper box body through bolts; a temperature sensor B is arranged on the upper box body of the parallel shaft gear box; bearing end covers B are arranged at two end parts of the output shaft and the input shaft outside the parallel shaft gear box, and eddy current displacement sensors A are arranged on the four bearing end covers B; bearings C are arranged at the two end parts of the output shaft and the input shaft in the parallel shaft gear box; the parallel shaft gear box is internally provided with a helical gear big gear and a helical gear small gear which are meshed with each other on the output shaft and the input shaft respectively.
The main body of the utility model is a planetary gear box and a parallel shaft gear box, a dynamic torque sensor, a temperature sensor and an eddy current displacement sensor respectively detect the signals of the torque rotating speed, the temperature and the vibration displacement of a test bed, and transmit the vibration signals to a control system for the next step; the vibration signal data of different types of fault gears can be obtained by replacing the fault gear in the parallel shaft gear box or the fault helical gear in the parallel shaft gear box; through the magnetic powder brake and the variable-speed driving motor, the vibration conditions of different fault gears under two different loading or no-load states and under different speed conditions can be simulated.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the planetary gear box and the parallel shaft gear box can be used for fault diagnosis tests by replacing fault gears, so that the use function of the test bed is enlarged, and the requirement of fault diagnosis research on simultaneous occurrence of multiple faults is met.
(2) The planetary gear box and the parallel shaft gear box are of split structures, so that parts of the planetary gear box and the parallel shaft gear box can be replaced more easily, and the planetary gear box and the parallel shaft gear box have the characteristic of convenience in disassembly and assembly.
(3) The variable-speed driving motor can simulate the fault characteristics under different speed conditions in a variable-speed mode, and can meet the requirement that the transmission of the planetary gear box and the transmission of the parallel shaft gear box change various working states in actual work.
Drawings
Fig. 1 is a structural diagram of an embodiment of the present invention.
Fig. 2 is a structural diagram of the planetary gear box according to the embodiment of the present invention.
Fig. 3 is a structural diagram of a parallel shaft gear box according to an embodiment of the present invention.
In the attached drawings, 1, a variable speed driving motor, 2, a variable speed driving motor support, 3, a first coupler, 4, a planetary gear box, 5, an upper planetary gear box support, 6, a temperature sensor A, 7, a second coupler, 8, a parallel shaft gear box, 9, a temperature sensor B, 10, an eddy current displacement sensor A, 11, a magnetic powder brake, 12, a magnetic powder brake support, 13, a third coupler, 14, a dynamic torque sensor base, 15, a dynamic torque sensor, 16, a fourth coupler, 17, a lower parallel shaft gear box body, 18, an upper parallel shaft gear box body, 19, a test table supporting foot, 20, an eddy current displacement sensor B, 21, a lower planetary gear box support, 22, a test table anti-vibration base, 23, a control system, 4-1, an output shaft, 4-2, an upper planetary gear box body, 4-3, a left planetary gear box body, 3, a right planetary gear box body, a left gear box body, The planetary gear type planetary gear transmission mechanism comprises a planetary gear A, 4-4 parts of a planetary gear carrier, 4-5 parts of a planetary gear B, 4-6 parts of a bearing A, 4-7 parts of a bearing B, 4-8 parts of a planetary gear box right box body lower seat, 4-9 parts of a planetary gear box right box body upper seat, 4-10 parts of an input shaft (sun gear), 4-11 parts of a planetary gear C, 4-12 parts of a gear ring, 4-13 parts of a planetary gear box left box body lower seat, 4-14 parts of a sun gear, 4-15 parts of a bearing end cover A, 8-1 part of a bearing end cover, an oblique tooth big gear, 8-2 parts of a bearing C, 8-3 part of a bearing end cover B.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the specific embodiments and the attached drawings, but the scope of the present invention is not limited to the embodiments.
Examples
A double-gearbox fault diagnosis test bed, referring to fig. 1-3, comprises a variable speed driving motor 1, a variable speed driving motor support 2, a first coupler 3, a planetary gearbox 4, a planetary gearbox upper support 5, a temperature sensor A6, a second coupler 7, a parallel shaft gearbox 8, a temperature sensor B9, an eddy current displacement sensor A10, a magnetic powder brake 11, a magnetic powder brake support 12, a third coupler 13, a dynamic torque sensor base 14, a dynamic torque sensor 15, a fourth coupler 16, a test bed support foot 19, an eddy current displacement sensor B20, a planetary gearbox lower support 21, a test bed anti-vibration base 22 and a control system 23; the variable-speed driving motor 1 is connected with an input shaft of the planetary gear box 4 through the first coupler 3, an output shaft of the planetary gear box 4 is connected with an input shaft of the parallel shaft gear box 8 through the second coupler 7, an output shaft of the parallel shaft gear box 8 is connected with the dynamic torque sensor 15 through the third coupler 13, and the other end of the dynamic torque sensor 15 is connected with the magnetic powder brake 11 through the fourth coupler 16; the variable-speed drive motor 1 is arranged on the variable-speed drive motor support 2; the planetary gear box 4 is arranged on the planetary gear box upper support 5, and the planetary gear box upper support 5 is arranged on the planetary gear box lower support 21; the dynamic torque sensor 15 is arranged on the dynamic torque sensor base 14; the magnetic powder brake 11 is arranged on the magnetic powder brake support 12; the variable speed driving motor support 2, the parallel shaft gear box 8, the planetary gear box lower support 21, the dynamic torque sensor base 14, the magnetic powder brake support 12 and the control system 23 are all arranged on a test bed anti-vibration base 22; the bottom of the test bed anti-vibration base 22 is provided with a test bed supporting foot 19; a temperature sensor A6 and an eddy current displacement sensor B20 are arranged on the planetary gear box 4; and a temperature sensor B9 and an eddy current displacement sensor A10 are mounted on the parallel shaft gear box 8.
The planetary gearbox 4 comprises a left planetary gearbox body and a right planetary gearbox body, and the left planetary gearbox body and the right planetary gearbox body are connected through a gear ring 4-12 bolt; the planetary gearbox left box body comprises a planetary gearbox left box body upper seat 4-2 and a planetary gearbox left box body lower seat 4-13, and the planetary gearbox right box body comprises a planetary gearbox right box body lower seat 4-8 and a planetary gearbox right box body upper seat 4-9; an input shaft 4-10 is installed on the right box body of the planetary gear box, a bearing A4-6 and a bearing B4-7 are installed on the input shaft 4-10, and a sun gear 4-14 is installed at the inner end part of the input shaft 4-10; the sun gear 4-14 is meshed with the planet gear A4-3, the planet gear B4-5 and the planet gear C4-11, and the planet gear A4-3, the planet gear B4-5 and the planet gear C4-11 are meshed with the ring gear 4-12; an output shaft 4-1 is mounted on the left box body of the planetary gear box, the output shaft 4-1 is connected with a planetary carrier 4-4, and the planetary carrier 4-4 is connected with a planetary gear A4-3, a planetary gear B4-5 and a planetary gear C4-11 through bolts; bearing end covers A4-15 are mounted at the outer end parts of the input shaft 4-10 and the output shaft 4-1 on the planetary gear box 4 through bolts, and a temperature sensor A6 and an eddy current displacement sensor A10 are mounted on each of the two bearing end covers A4-15.
The parallel shaft gear box 8 comprises a parallel shaft gear box lower box body 17 and a parallel shaft gear box upper box body 18, and the parallel shaft gear box lower box body 17 and the parallel shaft gear box upper box body 18 are connected through bolts; a temperature sensor B9 is arranged on the upper box body 18 of the parallel shaft gear box; bearing end covers B8-3 are arranged at two end parts of the output shaft and the input shaft outside the parallel shaft gear box 8, and eddy current displacement sensors A10 are arranged on the four bearing end covers B8-3; bearings C8-2 are arranged at the two end parts of the output shaft and the input shaft in the parallel shaft gear box 8; the parallel shaft gear box 8 is internally provided with a helical gear wheel 8-1 and a helical gear pinion 8-4 which are meshed with each other on an output shaft and an input shaft respectively.
The working process and principle of the test bed are as follows: the variable frequency driving motor 1 transmits power to an input shaft 4-10 and a sun gear 4-14, so as to drive a planet gear A4-3, a planet gear B4-5, a planet gear C4-11 and a planet carrier 4-4 to rotate together, and the planet carrier 4-4 transmits the power from an output shaft 4-1 to a shaft of a parallel shaft gear box 8, so as to drive a helical gear wheel 8-1 and a helical pinion 8-4 to be in meshing transmission; different fault helical gears can be conveniently replaced for testing by disassembling the upper box body 18 of the parallel shaft gearbox; different fault planet wheels can be conveniently replaced for testing by disassembling the upper seat 4-9 of the right box body of the planetary gear box and the lower seat 4-8 of the right box body of the planetary gear box; the rotating speed of the input shaft 4-10 can be changed by the variable-speed driving motor 1, so that the fault characteristics under different speed conditions are simulated in a variable-speed mode; through the selection of the loading condition of the magnetic powder brake 11, the vibration conditions of different fault gears in two different loading or no-load states can be simulated; temperature sensor A6, temperature sensor B9, electric eddy current displacement sensor A10, electric eddy current displacement sensor B20, dynamic torque sensor 15 are installed to this test bench, can measure different trouble gears: vibration signals of a planet wheel A4-3, a planet wheel B4-5, a planet wheel C4-11, a helical gear wheel 8-1 and a helical pinion 8-4: temperature, vibration displacement and torque rotation speed, and the vibration signals are transmitted to the control system 23 for further processing; the control system 23 controls the working operation and signal processing of the double-gearbox fault diagnosis test bed.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A double-gearbox fault diagnosis test bed is characterized by comprising a variable-speed driving motor (1), a variable-speed driving motor support (2), a first coupler (3), a planetary gearbox (4), a planetary gearbox upper support (5), a temperature sensor A (6), a second coupler (7), a parallel-shaft gearbox (8), a temperature sensor B (9), an eddy current displacement sensor A (10), a magnetic powder brake (11), a magnetic powder brake support (12), a third coupler (13), a dynamic torque sensor base (14), a dynamic torque sensor (15), a fourth coupler (16), a test bed supporting foot (19), an eddy current displacement sensor B (20), a planetary gearbox lower support (21), a test bed anti-vibration base (22) and a control system (23);
the variable-speed driving motor (1) is connected with an input shaft of the planetary gear box (4) through a first coupler (3), an output shaft of the planetary gear box (4) is connected with an input shaft of the parallel shaft gear box (8) through a second coupler (7), an output shaft of the parallel shaft gear box (8) is connected with the dynamic torque sensor (15) through a third coupler (13), and the other end of the dynamic torque sensor (15) is connected with the magnetic powder brake (11) through a fourth coupler (16);
the variable-speed driving motor (1) is arranged on the variable-speed driving motor support (2); the planetary gear box (4) is arranged on an upper support (5) of the planetary gear box, and the upper support (5) of the planetary gear box is arranged on a lower support (21) of the planetary gear box; the dynamic torque sensor (15) is arranged on the dynamic torque sensor base (14); the magnetic powder brake (11) is arranged on the magnetic powder brake support (12);
the variable-speed drive motor support (2), the parallel shaft gear box (8), the planetary gear box lower support (21), the dynamic torque sensor base (14), the magnetic powder brake support (12) and the control system (23) are all arranged on a test bed anti-vibration base (22); the bottom of the test bed anti-vibration base (22) is provided with a test bed supporting foot (19);
a temperature sensor A (6) and an eddy current displacement sensor B (20) are mounted on the planetary gear box (4); and a temperature sensor B (9) and an eddy current displacement sensor A (10) are mounted on the parallel shaft gear box (8).
2. Test bench according to claim 1, characterized in that the planetary gearbox (4) comprises a planetary gearbox left box and a planetary gearbox right box, which are bolted by a ring gear (4-12); the planetary gearbox left box body comprises a planetary gearbox left box body upper seat (4-2) and a planetary gearbox left box body lower seat (4-13), and the planetary gearbox right box body comprises a planetary gearbox right box body lower seat (4-8) and a planetary gearbox right box body upper seat (4-9); an input shaft (4-10) is installed on the right box body of the planetary gear box, a bearing A (4-6) and a bearing B (4-7) are installed on the input shaft (4-10), and a sun gear (4-14) is installed at the inner end of the input shaft (4-10); the sun wheel (4-14) is meshed with the planet wheel A (4-3), the planet wheel B (4-5) and the planet wheel C (4-11), and the planet wheel A (4-3), the planet wheel B (4-5) and the planet wheel C (4-11) are meshed with the gear ring (4-12); an output shaft (4-1) is mounted on the left box body of the planetary gear box, the output shaft (4-1) is connected with a planetary carrier (4-4), and the planetary carrier (4-4) is connected with a planetary gear A (4-3), a planetary gear B (4-5) and a planetary gear C (4-11) through bolts; bearing end covers A (4-15) are mounted at the outer end parts of the input shaft (4-10) and the output shaft (4-1) on the planetary gear box (4) through bolts, and a temperature sensor A (6) and an eddy current displacement sensor A (10) are mounted on the two bearing end covers A (4-15).
3. Test bench according to claim 1 or 2, characterized in that the parallel axis gearbox (8) comprises a parallel axis gearbox lower box (17) and a parallel axis gearbox upper box (18), which parallel axis gearbox lower box (17) and parallel axis gearbox upper box (18) are connected by bolts; a temperature sensor B (9) is arranged on the upper box body (18) of the parallel shaft gear box; bearing end covers B (8-3) are arranged at two end parts of the outer part of the parallel shaft gear box (8) positioned at the output shaft and the input shaft, and eddy current displacement sensors A (10) are arranged on the four bearing end covers B (8-3); bearings C (8-2) are arranged in the parallel shaft gear box (8) and positioned at two end parts of the output shaft and the input shaft; the parallel shaft gear box (8) is internally provided with a helical gear big gear (8-1) and a helical gear small gear (8-4) which are meshed with each other on an output shaft and an input shaft respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086114.7U CN210108722U (en) | 2019-07-09 | 2019-07-09 | Double gear case fault diagnosis test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086114.7U CN210108722U (en) | 2019-07-09 | 2019-07-09 | Double gear case fault diagnosis test bench |
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| Publication Number | Publication Date |
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| CN210108722U true CN210108722U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921086114.7U Expired - Fee Related CN210108722U (en) | 2019-07-09 | 2019-07-09 | Double gear case fault diagnosis test bench |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231167A (en) * | 2019-07-09 | 2019-09-13 | 南京农业大学 | A kind of Double gear box fault diagnostic test platform |
| CN113899561A (en) * | 2021-08-18 | 2022-01-07 | 北京信息科技大学 | Impact working condition simulation device and method for confluence planetary gear system |
-
2019
- 2019-07-09 CN CN201921086114.7U patent/CN210108722U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231167A (en) * | 2019-07-09 | 2019-09-13 | 南京农业大学 | A kind of Double gear box fault diagnostic test platform |
| CN113899561A (en) * | 2021-08-18 | 2022-01-07 | 北京信息科技大学 | Impact working condition simulation device and method for confluence planetary gear system |
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| CF01 | Termination of patent right due to non-payment of annual fee |