CN114414237A - Gear gluing failure determination system and method based on wireless temperature test - Google Patents
Gear gluing failure determination system and method based on wireless temperature test Download PDFInfo
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- CN114414237A CN114414237A CN202210093406.3A CN202210093406A CN114414237A CN 114414237 A CN114414237 A CN 114414237A CN 202210093406 A CN202210093406 A CN 202210093406A CN 114414237 A CN114414237 A CN 114414237A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a system and a method for judging gear gluing failure based on wireless temperature test, wherein the system comprises: the temperature sensor, a circuit board, a lithium battery, a gear test bed, a gluing test gear, a Bluetooth receiver and a computer end carrying a LabVIEW software program, wherein the lithium battery, the gluing test gear and the circuit board are arranged on a test bed shaft of the gear test bed, the temperature sensor is embedded on the gluing test gear and fixedly connected with the circuit board, the lithium battery is connected with the temperature sensor and the circuit board, the circuit board is in communication connection with the Bluetooth receiver, and the Bluetooth receiver is connected with the computer end. The gear gluing failure judging system and method based on the wireless temperature test can realize non-unpacking judgment of gear gluing failure, improve the testing efficiency of the gear gluing bearing capacity and reduce the testing cost of the gear gluing bearing capacity.
Description
Technical Field
The invention relates to the technical field of gear gluing failure judgment, in particular to a gear gluing failure judgment system and method based on wireless temperature testing.
Background
Gear gluing is a severe adhesive wear damage of the tooth surfaces under thermal coupling, a severe failure mode in which localized surface material is transferred from one tooth surface to the other. The existing engineering practical experience shows that the gear is easy to generate bonding failure under the high-temperature and high-speed service environment, particularly in gear transmission systems of helicopters, aero-engines, new energy automobiles and the like. A consistent conclusion from extensive research is that the evaluation of gear bond load bearing capacity can be achieved through standard gear bond testing. FZG A/8.3/90 is considered as a gear gluing bearing capacity standard test method and is widely adopted all over the world, and the standards such as ISO-14635, DIN 3990 and the like are adopted to carry out a gluing test to obtain the gear gluing temperature. However, the gear gluing test method FZG A/8.3/90 adopts a visual method to judge the gear gluing failure condition, so that the gear box needs to be disassembled and checked for failure after every 15min load level test is finished, and the existing gluing test method has low efficiency and huge cost of consumed manpower and time. Therefore, it is necessary to design a system and a method for determining the bonding failure of the gear based on the wireless temperature test.
Disclosure of Invention
The invention aims to provide a gear gluing failure judging system and method based on wireless temperature testing, which can realize non-unpacking judgment of gear gluing failure, improve the testing efficiency of gear gluing bearing capacity and reduce the testing cost of the gear gluing bearing capacity.
In order to achieve the purpose, the invention provides the following scheme:
a gear gluing failure determination system based on wireless temperature testing comprises: the temperature sensor, a circuit board, a lithium battery, a gear test bed, a gluing test gear, a Bluetooth receiver and a computer end carrying a LabVIEW software program, wherein the lithium battery, the gluing test gear and the circuit board are arranged on a test bed shaft of the gear test bed, the temperature sensor is embedded on the gluing test gear and fixedly connected with the circuit board, the lithium battery is connected with the temperature sensor and the circuit board, the circuit board is in communication connection with the Bluetooth receiver, and the Bluetooth receiver is connected with the computer end.
Optionally, the gear test bed is a CL-100 test bed or a gear test bed with the same loading capacity.
The invention also provides a gear gluing failure judgment method based on the wireless temperature test, which is applied to the gear gluing failure judgment system based on the wireless temperature test and comprises the following steps:
step 1: drawing a gluing test gear drawing, carrying out gluing test gear machining according to the gluing test gear drawing, formulating a test flow, and carrying out circuit board machining according to the gear temperature test function requirement;
step 2: carrying out technical processing on the processed gluing test gear, and assembling according to a gear gluing failure judgment system;
and step 3: and setting test parameters according to the test flow, carrying out a test, recording test data, and judging whether the gear is in gluing failure or not according to the test data.
Optionally, in step 1, drawing a gluing test gear drawing, carrying out gluing test gear machining according to the gluing test gear drawing, formulating a test flow, and carrying out circuit board machining according to the gear temperature test function requirement, specifically:
according to the first part of the gear FZG test procedure of Standard GB/T19936.1-2005: an FZG A/8.3/90 gear gluing bearing capacity test method described in an FZG test method A/8.3/90 for the relative gluing bearing capacity of oil products sets up a test flow, drawing and processing of a gluing test gear drawing are carried out according to the regulations in the standard, wherein the gluing test gear is a standard FZG A-type gear, and a constant-voltage resistance bridge three-wire system PT-100 circuit board is manufactured according to the functional requirements of gear temperature test.
Optionally, in step 2, the gluing test gear after being processed is technically processed, and the gluing test gear is assembled according to the gear gluing failure determination system, specifically:
the end face of the gluing test gear is processed by electric spark punching, a plurality of holes are formed, a plurality of temperature sensors are embedded into the holes of the gluing test gear, the temperature sensors are fixed in the holes of the gluing test gear through high-temperature sol, the temperature sensors are PT-100 temperature sensors, the temperature sensors are connected with a circuit board, a lithium battery is connected with the temperature sensors and the circuit board, a Bluetooth receiver is connected with a computer end, whether the computer end can normally communicate with the circuit board is checked, if the computer end can normally communicate with the circuit board, the debugging is successful, the circuit board, the lithium battery and the gluing test gear are arranged on a test bed shaft of a gear test bed, the circuit board is connected with the temperature sensors, and the lithium battery is connected with the circuit board and the temperature sensors and used for supplying power.
Optionally, in step 3, setting test parameters according to the test flow, performing a test, recording test data, and judging whether the gear is in gluing failure according to the test data, specifically:
referring to the FZG A/8.3/90 gluing test method in the GB/T19936.1-2005, setting gear load, rotating speed, torque, lubricating oil temperature and lubricating oil quantity, carrying out a gear gluing test according to the test flow formulated in the step 1, recording gear temperature change data through a gear gluing failure judgment system in the test, checking a gear temperature change curve in LABVIEW software at a computer end after each load stage of the gear gluing test is finished, if the gear temperature change curve rapidly rises and then tends to be stable in the test process and the temperature does not suddenly change in the test process, indicating that the gear does not have gluing failure, continuing to carry out the next load stage test, if the gear temperature value suddenly increases in the gluing test process under a certain load stage and the temperature of the gear after sudden increase is far higher than the temperature of the gear before sudden increase, judging that the gluing failure of the gear in the gluing test occurs, after the load level test is finished, unpacking, checking and recording the gluing failure damage condition of the surface of the gluing test gear.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: according to the gear gluing failure judging system and method based on the wireless temperature test, the gear gluing failure state can be judged through the gear temperature signal in the gear gluing bearing capacity test, the gear gluing failure state can be judged without frequently unpacking, the gear gluing failure judging system and method have the advantages of being quantifiable, good in accuracy and high in efficiency, and the problems that failure judgment is troublesome and inaccurate in the original gear gluing test are solved; according to the method, the temperature of the tooth body can be acquired in real time by adopting the temperature sensor, the service state of the gear in the test process can be effectively and accurately reflected, the failure condition can be judged after the test is finished, and the test efficiency is greatly improved; the system is convenient to realize, low in cost and capable of greatly reducing the cost of the gear gluing bearing capacity test.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a gear gluing failure determination system based on a wireless temperature test according to an embodiment of the present invention;
FIG. 2 is a schematic view of a glue test pinion configuration;
FIG. 3 is a schematic structural view of a large gear for a gluing test;
FIG. 4a is a schematic perspective view of the temperature sensor installation;
FIG. 4b is a schematic front view of the temperature sensor mounting;
FIG. 5 is a signal diagram of a gear normal operation temperature sensor;
FIG. 6 is a signal diagram of a gear gluing failure temperature sensor;
FIG. 7 is a graph of gear surface damage at various load stages;
fig. 8 is a schematic flow chart of a gear gluing failure determination method based on a wireless temperature test according to an embodiment of the present invention.
Reference numerals: 1. gluing the test gear; 2. a circuit board; 3. a computer terminal; 4. a Bluetooth receiver; 5. a test bed shaft; 6. a lithium battery; 7. a temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a gear gluing failure judging system and method based on wireless temperature testing, which can realize non-unpacking judgment of gear gluing failure, improve the testing efficiency of gear gluing bearing capacity and reduce the testing cost of the gear gluing bearing capacity.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, a gear gluing failure determination system based on a wireless temperature test according to an embodiment of the present invention includes: the device comprises a temperature sensor 7, a circuit board 2, a lithium battery 6, a gear test bed, a gluing test gear 1, a Bluetooth receiver 4 and a computer end 3 carrying a LabVIEW software program, wherein the lithium battery 6, the gluing test gear 1 and the circuit board 2 are arranged on a test bed shaft 5 of the gear test bed, the temperature sensor 7 is embedded in the gluing test gear 1, the temperature sensor 7 is fixedly connected with the circuit board 2, the lithium battery 6 is connected with the temperature sensor 7 and the circuit board 2, the circuit board 2 is in communication connection with the Bluetooth receiver 4, and the Bluetooth receiver 4 is connected with the computer end 3.
The gear test bed is a CL-100 mechanical closed test bed or a gear test bed with the same working condition control and loading capacity, wherein the minimum power of a motor is 5.5kW, the rotating speed is about 1450r/min, the center distance of a gluing test gear is 91.5mm, and the CL-100 mechanical closed test bed has lubricating oil heating capacity and can be heated to 90 ℃ or the gear test bed has the same working condition control and loading capacity, the circuit board 2 adopts a constant-voltage resistance bridge three-wire system PT-100 circuit board, the temperature sensor 7 adopts a PT-100 temperature sensor, and the gluing test gear 1 is a gluing test gear subjected to carburizing, hardening and grinding treatment.
When the lubricating oil needs to be heated to a higher temperature, each electronic element can be replaced by a high-temperature resistant element.
As shown in fig. 2 and 3, the gluing test pinion and the gluing test gearwheel can be manufactured as required.
As shown in fig. 8, the present invention further provides a gear gluing failure determination method based on a wireless temperature test, which is applied to the gear gluing failure determination system based on the wireless temperature test, and includes the following steps:
step 1: drawing a gluing test gear drawing, carrying out gluing test gear machining according to the gluing test gear drawing, formulating a test flow, and carrying out circuit board machining according to the gear temperature test function requirement;
step 2: carrying out technical processing on the processed gluing test gear, and assembling according to a gear gluing failure judgment system;
and step 3: and setting test parameters according to the test flow, carrying out a test, recording test data, and judging whether the gear is in gluing failure or not according to the test data.
In the step 1, drawing a gluing test gear drawing, carrying out gluing test gear machining according to the gluing test gear drawing, formulating a test flow, and carrying out circuit board machining according to the gear temperature test function requirement, wherein the method specifically comprises the following steps:
according to the first part of the gear FZG test procedure of Standard GB/T19936.1-2005: an FZG A/8.3/90 gear gluing bearing capacity test method described in an FZG test method A/8.3/90 for the relative gluing bearing capacity of oil products formulates a test flow, and drawing and processing of a gluing test gear drawing are carried out according to the regulations in the standard, wherein the gluing test gear is a standard FZG A-type gear, and a constant-voltage resistance bridge three-wire system PT-100 circuit board is manufactured according to the functional requirement of gear temperature test;
by adopting a constant-voltage resistance bridge three-wire system PT-100 circuit design and based on Bluetooth signal transmission and a software program compiled by LABVIEW, a gear gluing failure judgment system based on wireless temperature test is developed, and the temperature detection of a normally working gear on a closed gear box of a gear test bed can be realized;
in step 2, the processed gluing test gear is technically processed and assembled according to a gear gluing failure judgment system, and the method specifically comprises the following steps:
as shown in fig. 4a and 4b, the processed gluing test gear is technically processed, in order to realize the monitoring of the gear tooth position temperature signal of the gear, the end face of the gluing test gear is processed by electric spark drilling, a plurality of holes with the depth of 16mm are processed on the end face of the gluing test gear, a plurality of temperature sensors are embedded into the holes of the gluing test gear, the temperature sensors are fixed in the holes of the gluing test gear by high-temperature sol, and the temperature sensors are fixed on the gluing test gear by high-temperature sol, so that the temperature sensors can be ensured not to fall off in the test process, and the accuracy is improved, wherein the temperature sensors are PT-100 temperature sensors;
and then debugging the gear gluing failure judgment system based on the wireless temperature test, wherein the specific process comprises the steps of connecting a temperature sensor with a circuit board, connecting a lithium battery with the temperature sensor and the circuit board, connecting a Bluetooth receiver with a computer end, checking Bluetooth communication and sensor measurement signals in a computer end LABVIEW software interface until the signals are normally detected and transmitted to a computer LABVIEW software, determining that the computer end and the circuit board can normally communicate, judging that the debugging is successful, and arranging the circuit board, the lithium battery and a gluing test gear on a test bed shaft of a gear test bed, wherein the circuit board is connected with the temperature sensor, and the lithium battery is connected with the circuit board and the temperature sensor and used for supplying power.
In step 3, setting test parameters according to the test flow, performing a test, recording test data, and judging whether the gear is in gluing failure according to the test data, specifically:
referring to the FZG a/8.3/90 gluing test method in the standard GB/T19936.1-2005, setting a gear load, a rotational speed, a torque, a lubricating oil temperature, and a lubricating oil amount, performing a gear gluing test according to the test flow formulated in step 1, recording gear temperature change data by a gear gluing failure determination system in the test, after each load stage of the gear gluing test is completed, checking a gear temperature change curve in computer-side LABVIEW software, as shown in fig. 5, if the gear temperature change curve rapidly rises first and then tends to be stable in the test process, and the temperature does not suddenly change in the test process, indicating that the gear does not have a gluing failure, continuing to perform the next load stage test, as shown in fig. 6, if the gear temperature value suddenly increases in the gluing test process under a certain load stage, and the temperature of the gear after sudden increase is much higher than the gear temperature before the sudden increase, judging that the gluing test gear has gluing failure, unpacking and checking the gluing failure damage condition of the surface of the gluing test gear after the load level test is finished, and recording;
when the box is disassembled after the load level test is finished, the gluing damage condition of the gear after the gluing failure is inspected by a visual method according to the specification of the gluing test standard GB/T19936.1-2005, namely the damage condition of the gluing failure pinion is observed by disassembling the gear box at a position which is about 30cm away from the gear, wherein the damage condition of the gear surface under each load level is shown in figure 7.
According to the gear gluing failure judging system and method based on the wireless temperature test, the gear gluing failure state can be judged through the gear temperature signal in the gear gluing bearing capacity test, the gear gluing failure state can be judged without frequently unpacking, the gear gluing failure judging system and method have the advantages of being quantifiable, good in accuracy and high in efficiency, and the problems that failure judgment is troublesome and inaccurate in the original gear gluing test are solved; according to the method, the temperature of the tooth body can be acquired in real time by adopting the temperature sensor, the service state of the gear in the test process can be effectively and accurately reflected, the failure condition can be judged after the test is finished, and the test efficiency is greatly improved; the system is convenient to realize, low in cost and capable of greatly reducing the cost of the gear gluing bearing capacity test.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A gear gluing failure determination system based on wireless temperature testing is characterized by comprising: the temperature sensor, a circuit board, a lithium battery, a gear test bed, a gluing test gear, a Bluetooth receiver and a computer end carrying a LabVIEW software program, wherein the lithium battery, the gluing test gear and the circuit board are arranged on a test bed shaft of the gear test bed, the temperature sensor is embedded on the gluing test gear and fixedly connected with the circuit board, the lithium battery is connected with the temperature sensor and the circuit board, the circuit board is in communication connection with the Bluetooth receiver, and the Bluetooth receiver is connected with the computer end.
2. The system for determining gear gluing failure based on wireless temperature testing of claim 1, wherein the gear testing stand is a CL-100 testing stand or a gear testing stand with the same loading capacity.
3. A gear gluing failure judgment method based on wireless temperature testing is applied to the gear gluing failure judgment system based on wireless temperature testing as claimed in any one of claims 1-2, and is characterized by comprising the following steps:
step 1: drawing a gluing test gear drawing, carrying out gluing test gear machining according to the gluing test gear drawing, formulating a test flow, and carrying out circuit board machining according to the gear temperature test function requirement;
step 2: carrying out technical processing on the processed gluing test gear, and assembling according to a gear gluing failure judgment system;
and step 3: and setting test parameters according to the test flow, carrying out a test, recording test data, and judging whether the gear is in gluing failure or not according to the test data.
4. The method for judging the gluing failure of the gear based on the wireless temperature test is characterized in that in the step 1, a gluing test gear drawing is drawn, the gluing test gear is machined according to the gluing test gear drawing, a test flow is formulated, and circuit board machining is carried out according to the functional requirement of the gear temperature test, specifically:
according to the first part of the gear FZG test procedure of Standard GB/T19936.1-2005: an FZG A/8.3/90 gear gluing bearing capacity test method described in an FZG test method A/8.3/90 for the relative gluing bearing capacity of oil products sets up a test flow, drawing and processing of a gluing test gear drawing are carried out according to the regulations in the standard, wherein the gluing test gear is a standard FZG A-type gear, and a constant-voltage resistance bridge three-wire system PT-100 circuit board is manufactured according to the functional requirements of gear temperature test.
5. The method for judging the gluing failure of the gear based on the wireless temperature test as claimed in claim 4, wherein in the step 2, the machined gluing test gear is subjected to technical processing and assembled according to a gear gluing failure judging system, and the method specifically comprises the following steps:
the end face of the gluing test gear is processed by electric spark punching, a plurality of holes are formed, a plurality of temperature sensors are embedded into the holes of the gluing test gear, the temperature sensors are fixed in the holes of the gluing test gear through high-temperature sol, the temperature sensors are PT-100 temperature sensors, the temperature sensors are connected with a circuit board, a lithium battery is connected with the temperature sensors and the circuit board, a Bluetooth receiver is connected with a computer end, whether the computer end can normally communicate with the circuit board is checked, if the computer end can normally communicate with the circuit board, the debugging is successful, the circuit board, the lithium battery and the gluing test gear are arranged on a test bed shaft of a gear test bed, the circuit board is connected with the temperature sensors, and the lithium battery is connected with the circuit board and the temperature sensors and used for supplying power.
6. The method for judging the gluing failure of the gear based on the wireless temperature test as claimed in claim 5, wherein in the step 3, test parameters are set according to a test flow, a test is carried out, test data are recorded, and whether the gluing failure of the gear occurs or not is judged according to the test data, specifically:
referring to the FZG A/8.3/90 gluing test method in the GB/T19936.1-2005, setting gear load, rotating speed, torque, lubricating oil temperature and lubricating oil quantity, carrying out a gear gluing test according to the test flow formulated in the step 1, recording gear temperature change data through a gear gluing failure judgment system in the test, checking a gear temperature change curve in LABVIEW software at a computer end after each load stage of the gear gluing test is finished, if the gear temperature change curve rapidly rises and then tends to be stable in the test process and the temperature does not suddenly change in the test process, indicating that the gear does not have gluing failure, continuing to carry out the next load stage test, if the gear temperature value suddenly increases in the gluing test process under a certain load stage and the temperature of the gear after sudden increase is far higher than the temperature of the gear before sudden increase, judging that the gluing failure of the gear in the gluing test occurs, after the load level test is finished, unpacking, checking and recording the gluing failure damage condition of the surface of the gluing test gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210093406.3A CN114414237B (en) | 2022-01-26 | 2022-01-26 | Gear gluing failure determination system and method based on wireless temperature test |
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| CN202210093406.3A CN114414237B (en) | 2022-01-26 | 2022-01-26 | Gear gluing failure determination system and method based on wireless temperature test |
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| CN114414237B CN114414237B (en) | 2023-03-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117043569A (en) * | 2022-08-18 | 2023-11-10 | 嘉兴尚坤科技有限公司 | Backlash temperature detection mechanism of high-speed precise gear in work |
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| CN109632147A (en) * | 2019-02-19 | 2019-04-16 | 天津工业大学 | A kind of experimental bench measuring gear contact temperature |
| CN111828591A (en) * | 2020-06-11 | 2020-10-27 | 重庆大学 | Novel intelligent gear |
| CN215178600U (en) * | 2021-07-02 | 2021-12-14 | 山东蒙沃变速器有限公司 | Gear testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204041923U (en) * | 2014-07-01 | 2014-12-24 | 常州布拉迪纺织机械有限公司 | Gear |
| CN105136322A (en) * | 2015-09-15 | 2015-12-09 | 安徽精科检测技术有限公司 | Temperature measuring method of tooth root of gear |
| CN109632147A (en) * | 2019-02-19 | 2019-04-16 | 天津工业大学 | A kind of experimental bench measuring gear contact temperature |
| CN111828591A (en) * | 2020-06-11 | 2020-10-27 | 重庆大学 | Novel intelligent gear |
| CN215178600U (en) * | 2021-07-02 | 2021-12-14 | 山东蒙沃变速器有限公司 | Gear testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117043569A (en) * | 2022-08-18 | 2023-11-10 | 嘉兴尚坤科技有限公司 | Backlash temperature detection mechanism of high-speed precise gear in work |
| WO2024036568A1 (en) * | 2022-08-18 | 2024-02-22 | 嘉兴尚坤科技有限公司 | Mechanism for measuring the tooth gap temperature of high-speed precision gear during working |
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| Publication number | Publication date |
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| CN114414237B (en) | 2023-03-21 |
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