CN114295266A - Dynamic impact torque simulation test bench and use method thereof - Google Patents
Dynamic impact torque simulation test bench and use method thereof Download PDFInfo
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- CN114295266A CN114295266A CN202111560597.1A CN202111560597A CN114295266A CN 114295266 A CN114295266 A CN 114295266A CN 202111560597 A CN202111560597 A CN 202111560597A CN 114295266 A CN114295266 A CN 114295266A
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000004088 simulation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title description 12
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000005065 mining Methods 0.000 description 1
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Abstract
The invention provides a dynamic impact torque simulation test bench, and belongs to the technical field of test devices. The dynamic impact torque simulation test bench comprises a base; the base is sequentially provided with a driving device, a flywheel body, a hydraulic clutch and a tool clamping plate; the driving device is connected with an input shaft arranged on the base, the flywheel body is connected to the input shaft, the input end of the input shaft is provided with a hydraulic oil pipe input port, the output end of the input shaft is connected with the hydraulic clutch, and the hydraulic oil pipe input port is communicated with the hydraulic clutch; the hydraulic clutch is connected with a spline on the output shaft through a gear sleeve, and the output shaft is connected with equipment to be detected; the one end that the frock cardboard is located on the base is used for treating the check out test set and carries out the locked rotor spacing, and the other end contacts with the pressure sensor who sets up on the base. The dynamic impact torque simulation test bench provided by the invention can realize the measurement of the impact torque generated by the high-speed end of the driving equipment such as a motor.
Description
Technical Field
The invention relates to the technical field of testing devices, in particular to a dynamic impact torque simulation test bench and a using method thereof.
Background
Torque is an important working parameter in rotary power machinery, and in the industries of mining, ships, aviation, aerospace and the like, a transmission system of the rotary power machinery often generates heavy impact load, a torque protection device needs to be added, torque setting of the protection device needs to be accurately detected, and the set torque is ensured to be accurate and reliable, so that the precision test of the torque can be obviously improved, and the mechanical performance of parts can be obviously improved.
At present, a torque test platform is mainly characterized in that a detected object is directly connected with a torque sensor, a braking device is connected with a motor, the sensor, the braking device and the motor are placed on the same reference platform, the motor rotates to drive a detected shaft to rotate, the output end of the motor is generally connected with the input end of the detected shaft in a coupling mode, so that the sensor and the brake are driven to rotate, the detected model is output through a torque sensor interface, and torque information is obtained. When a large-torque test is carried out on the torque test bed with the layout, particularly a large-torque test under the condition of simulating high-speed rotation, a large-torque motor and a large-torque brake are required to be selected, the appearance volumes of the corresponding motor and the corresponding brake are increased, and the extra-large torque test bed is required to be huge;
for the detection of the torque set by the torque protection device, in the prior art, most of the detection of the required torque protection device is realized by loading static torque, the output of large torque is realized by using a large motor or the torque is increased by adding a reduction gearbox, the detection mode usually can only realize the detection of the torque, the simulation of dynamic impact torque under high-speed rotation cannot be realized, and the simulation of the temperature change after the detected product absorbs the kinetic energy of a high-speed rotating object and the equivalent simulation test of the actual working condition cannot be realized.
In summary, the prior art is difficult to realize the simulation of the impact load generated by the sudden card lag of the high-speed rotating object, only the dynamic torque test platform realizes the torque detection of the normal transmission and the torque detection under the normal braking condition, the prior art only can solve the detection of the static torque and the conventional dynamic torque of the test product, and is difficult to realize the detection of the impact torque generated by the sudden card lag of the high-speed rotating object, the sudden card lag working condition of the type often has random occurrence time and occurrence place and low occurrence frequency, but once the serious equipment damage and even dangerous accident are generated, the prior test platform generally needs to be matched with a large motor according to the power requirement, and the large brake even needs to be added with a reducer to increase the torque, thereby greatly increasing the construction cost of the test platform, and greatly increasing the fault points of the test platform due to more transmission links, meanwhile, for detection with large span, different test beds can be adopted for detection, and each loading needs to reach rated power, which is also a waste of energy.
Disclosure of Invention
In view of this, in order to solve the technical problem that the detection of the static torque and the conventional dynamic torque of a test product can only be solved in the prior art, and the detection of the impact torque generated by sudden jamming when the high-speed rotating object is impacted is difficult to realize, one of the objects of the present invention is to provide a dynamic impact torque simulation test bench, which can realize that sudden severe working conditions occur to a power system which simulates high-speed operation, and the output end suddenly generates jamming or stalling, so as to realize the measurement of the impact torque generated by the high-speed end of a driving device such as a motor.
In order to achieve the purpose, the invention provides the following technical scheme:
a dynamic impact torque simulation test bench comprises a base;
the base is sequentially provided with a driving device, a flywheel body, a hydraulic clutch and a tool clamping plate;
the driving device is connected with an input shaft arranged on the base, the flywheel body is connected to the input shaft, a hydraulic oil pipe input port is arranged at the input end of the input shaft, the output end of the input shaft is connected with the hydraulic clutch, and the hydraulic oil pipe input port is communicated with the hydraulic clutch;
the hydraulic clutch is connected with a spline on the output shaft through a gear sleeve, and the output shaft is connected with equipment to be detected;
the tool clamping plate is located at one end of the base and used for blocking and limiting the equipment to be detected, and the other end of the tool clamping plate is in contact with the pressure sensor arranged on the base.
Preferably, the driving device comprises a motor arranged on the base and a second belt pulley arranged at the input end of the input shaft;
and the first belt pulley and the second belt pulley on the output end of the motor are in transmission connection through a transmission belt.
Preferably, the input shaft is fixed to the base by a first bearing block and a second bearing block located at the left end of the flywheel mass.
Preferably, a first positioning ring for limiting the distance between the second bearing seat and the flywheel body is arranged between the second bearing seat and the flywheel body.
Preferably, a second positioning ring is arranged between the flywheel body and the hydraulic clutch.
Preferably, an encoder is connected to the output end of the output shaft.
Preferably, a third bearing seat is provided on the output end adjacent the output shaft.
Preferably, a clamp plate end cover is arranged between the tool clamp plate and the third bearing seat.
Preferably, the base is further provided with an infrared thermometer for detecting the temperature of the equipment to be detected in real time.
The second objective of the present invention is to provide a method for using the above dynamic impact torque simulation test bench, which comprises the following steps:
1) mounting the flywheel block on the flywheel body according to the requirement of the test working condition;
2) installing a device to be detected;
3) the driving device is started to drive the input shaft to rotate, and after the simulated rotating speed required to be set is reached, hydraulic oil is input into the input port of the hydraulic oil pipe instantly, so that the hydraulic clutch is attracted instantly, and meanwhile, reliable locking is realized, and the output shaft is driven to rotate at a high speed.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can realize sudden severe working conditions of a power system which simulates high-speed operation, and sudden clamping stagnation or locked rotation of an output end, and realizes the measurement of the impact torque generated by the high-speed end of driving equipment such as a motor, and the like, and simultaneously can accurately detect and analyze the set torque and the durability of the torque protection device, especially the temperature rise generated by absorbing the part of kinetic energy under the sudden condition and the accurate detection and analysis of how long the part of kinetic energy needs to be absorbed.
2. The invention solves the problem that the structures and the installation modes of various types of detected equipment cannot be unified, and the objective requirements that the test bed needs to be completely or partially replaced according to the detected equipment in different forms are met. For the detection of low-speed characteristics or the impact load influence caused by various different speed sections, the invention can also realize stepless speed regulation and meet the requirements of the working conditions.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a perspective view of the present invention;
in the figure, 1, a base, 2, a motor, 3, a first belt pulley, 4, a transmission belt, 5, a second belt pulley, 6, an input shaft, 7, a first bearing seat, 8, a second bearing seat, 9, a first positioning ring, 10, a flywheel body, 11, a second positioning ring, 12, a hydraulic clutch, 13, a gear sleeve, 14, an output shaft, 15, equipment to be detected, 16, a tool clamping plate, 17, a pressure sensor, 18, a clamping plate end cover, 19, a third bearing seat, 20, an encoder, 21, an infrared thermometer and 22, and an input port of a hydraulic oil pipe.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the present invention provides a dynamic impact torque simulation test bench, which comprises a base 1;
the base 1 is sequentially provided with a driving device, a flywheel body 10, a hydraulic clutch 12 and a tool clamping plate 16;
the driving device is connected with an input shaft 6 arranged on the base 1, the flywheel body 10 is connected on the input shaft 6, a hydraulic oil pipe input port 22 is arranged at the input end of the input shaft 6, the output end of the input shaft 6 is connected with the hydraulic clutch 12, and the hydraulic oil pipe input port 22 is communicated with the hydraulic clutch 12;
the hydraulic clutch 12 is connected with a spline on an output shaft 14 through a gear sleeve 13, and the output shaft 14 is connected with equipment to be detected 15;
the tooling clamping plate 16 is positioned at one end of the base 1 and used for blocking and limiting the equipment to be detected 15, and the other end of the tooling clamping plate is in contact with a pressure sensor 17 arranged on the base 1.
In the invention, the driving device comprises a motor 2 arranged on the base 1 and a second belt pulley 5 arranged at the input end of the input shaft 6;
the first belt pulley 3 on the output end of the motor 2 is in transmission connection with the second belt pulley 5 through a transmission belt 4.
In the present invention, the input shaft 6 is fixed to the base 1 through a first bearing seat 7 and a second bearing seat 8 at the left end of the flywheel mass 10.
In the present invention, a first positioning ring 9 for limiting the distance between the second bearing seat 8 and the flywheel body 10 is arranged between the two.
In the present invention, a second positioning ring 11 is disposed between the flywheel body 10 and the hydraulic clutch 12.
In the present invention, an encoder 20 is connected to an output end of the output shaft 14.
In the present invention, a third bearing seat 19 is provided on the output end near the output shaft 14.
In the present invention, a chuck plate end cover 18 is disposed between the tool chuck plate 16 and the third bearing seat 19.
In the invention, the base 1 is further provided with an infrared thermometer 21 for detecting the temperature of the device 15 to be detected in real time.
The specific structure and function of the dynamic impact torque simulation test bench provided by the invention are as follows:
the invention comprises a base 1 fixed on a mounting platform, a fixed motor 2 is arranged on the base 1, the motor 2 drives a transmission belt 4 through a first belt pulley 3, the transmission belt 4 is connected with a first input shaft 6 through a second belt pulley 5, the input shaft 6 is respectively fixed on the base 1 through a first bearing seat 7 and a second bearing seat 8, a flywheel body 10 is fixedly arranged at the right side of the input shaft 6 and the second bearing seat 8, the distance between the two is limited through a first positioning ring 9, the flywheel body 10 can increase a flywheel block corresponding to the rotational inertia according to the test requirement, the mounting position of the output end of the input shaft 6 and a hydraulic clutch 12 is limited through a second positioning ring 11, the hydraulic clutch 12 controls the clutch state of the clutch through hydraulic oil, the hydraulic clutch 12 is connected with a gear sleeve 13 through the end surface, the gear sleeve 13 is connected to a device 15 to be detected through a spline on an output shaft 14, the mounting mode of waiting to detect equipment 15 can be adjusted as required, it is spacing that waiting to detect equipment 15 carries out the locked rotor through frock cardboard 16, frock cardboard 16 sets for terminal (the one end of keeping away from base 1) contact pressure sensor 17 through the installation, pressure sensor 17 converts the moment of torsion parameter into through pressure multiply arm of force length, it detects the start-up protection moment of equipment 15 under the high-speed impact load of emulation to draw, output shaft 14 prescribes a limit to the installation distance between with third bearing seat 19 through cardboard end cover 18, be provided with encoder 20 at the end (the output) of output shaft 14 and implement the control to whole process of skidding, treat through the infrared thermometer 21 of installing on base 1 simultaneously and detect equipment 15 in real time temperature, the change process of record product temperature in whole impact load emergence process.
The second objective of the present invention is to provide a method for using the above dynamic impact torque simulation test bench, which comprises the following steps:
1) according to the requirement of the working condition to be tested, selecting a flywheel block which is equivalent to the total rotational inertia accumulated at the input ends of the motor and the whole transmission system to be installed on the flywheel body 10;
2) meanwhile, the equipment 15 to be detected is reliably connected with the tool clamping plate 16, the tail end of the tool clamping plate 16 is contacted with the pressure sensor 17, and meanwhile, the input end of the equipment 15 to be detected is reliably connected with the output shaft 14;
3) after the installation is finished, the motor 2 is started, the input shaft 6 is driven to rotate through the belt pulley, hydraulic oil is instantly input into the hydraulic oil pipe input port 22 on the port of the input shaft 6 after the simulated rotating speed required to be set is reached, so that the hydraulic clutch 12 is instantly attracted (in millisecond level), reliable locking is realized at the same time, the output shaft 14 is driven to rotate at a high speed, the motor 2 is a variable frequency motor, stepless speed regulation can be realized, the impact torque generated under various powers and rotating speeds can be tested, and forward and reverse tests can be realized.
The dynamic impact torque simulation test bench and the use method thereof provided by the invention can realize the detection of the set torque of the torque protection device under the impact load, and can also realize the simulation of the maximum impact torque generated under the condition that the impact load occurs. The torque test bed solves the problem that the conventional torque test bed cannot detect the impact torque caused by sudden stop in a high-speed rotation state, can detect the actual slipping torque of the torque protection device in the high-speed rotation state, can detect the whole process of the torque protection device in the slipping process, and can detect the actual temperature change of the torque protection device in the protection process in real time. The detection mode can also effectively detect the working stability of the torque protection device in inflammable and explosive environments (such as explosive gas and dust environments), and can thoroughly detect the upper limit of the torque protection device reaching safe use under which working conditions, thereby ensuring that the torque protection device detects the upper limit of the extreme use working conditions on a test bed.
In addition, the limitation that a large motor, a large brake and a large platform are required for large torque is solved, a smaller motor is used for driving a flywheel with larger rotational inertia, the rotational inertia of the large motor is equivalent to the rotational inertia of the flywheel, the small motor is enabled to generate high-speed impact torque of the large motor, dependence on the large motor is eliminated, energy can be greatly saved, meanwhile, in order to achieve stable starting and reduce the influence of vibration, the motor and the large inertia wheel are connected through a belt, the motor is a variable frequency motor and achieves uniform and stable starting, after the motor is started and runs to a rated rotating speed needing simulation, the motor is powered off, the middle hydraulic clutch device achieves suction instantly, and the rotational inertia of the large inertia wheel, the transmission shaft and the hydraulic clutch is loaded onto a tested product instantly.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. A dynamic impact torque simulation test bench is characterized by comprising a base;
the base is sequentially provided with a driving device, a flywheel body, a hydraulic clutch and a tool clamping plate;
the driving device is connected with an input shaft arranged on the base, the flywheel body is connected to the input shaft, a hydraulic oil pipe input port is arranged at the input end of the input shaft, the output end of the input shaft is connected with the hydraulic clutch, and the hydraulic oil pipe input port is communicated with the hydraulic clutch;
the hydraulic clutch is connected with a spline on the output shaft through a gear sleeve, and the output shaft is connected with equipment to be detected;
the tool clamping plate is located at one end of the base and used for blocking and limiting the equipment to be detected, and the other end of the tool clamping plate is in contact with the pressure sensor arranged on the base.
2. The dynamic impact torque simulation test bench according to claim 1, wherein the driving device comprises a motor disposed on the base and a second pulley disposed at an input end of the input shaft;
and the first belt pulley and the second belt pulley on the output end of the motor are in transmission connection through a transmission belt.
3. The dynamic impact torque simulation test bench of claim 1, wherein the input shaft is fixed to the base by a first bearing seat and a second bearing seat located at the left end of the flywheel mass.
4. The dynamic impact torque simulation test bench according to claim 3, wherein a first positioning ring is disposed between the second bearing seat and the flywheel body for limiting the distance therebetween.
5. The dynamic impact torque simulation test bench according to claim 1, wherein a second positioning ring is disposed between the flywheel body and the hydraulic clutch.
6. The dynamic impact torque simulation test bench according to claim 1, wherein an encoder is connected to an output end of the output shaft.
7. The dynamic impact torque simulation test bench of claim 1, wherein a third bearing seat is provided on the output end near the output shaft.
8. The dynamic impact torque simulation test bench according to claim 7, wherein a clamp plate end cover is arranged between the tool clamp plate and the third bearing seat.
9. The dynamic impact torque simulation test bench according to any one of claims 1-8, wherein an infrared thermometer for real-time temperature detection of a device to be detected is further disposed on the base.
10. Use of a dynamic impact torque simulation test rig according to any of the claims 1-9, characterized in that it comprises the steps of:
1) mounting the flywheel block on the flywheel body according to the requirement of the test working condition;
2) installing a device to be detected;
3) the driving device is started to drive the input shaft to rotate, and after the simulated rotating speed required to be set is reached, hydraulic oil is input into the input port of the hydraulic oil pipe instantly, so that the hydraulic clutch is attracted instantly, and meanwhile, reliable locking is realized, and the output shaft is driven to rotate at a high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111560597.1A CN114295266A (en) | 2021-12-20 | 2021-12-20 | Dynamic impact torque simulation test bench and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111560597.1A CN114295266A (en) | 2021-12-20 | 2021-12-20 | Dynamic impact torque simulation test bench and use method thereof |
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| CN114295266A true CN114295266A (en) | 2022-04-08 |
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| CN202111560597.1A Pending CN114295266A (en) | 2021-12-20 | 2021-12-20 | Dynamic impact torque simulation test bench and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115176648A (en) * | 2022-06-20 | 2022-10-14 | 上海第二工业大学 | Intelligent mushroom picking end effector capable of judging picking state |
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| AT7889U2 (en) * | 2005-06-15 | 2005-10-17 | Avl List Gmbh | METHOD FOR TESTING A DYNAMIC TORQUE GENERATOR AND DEVICE FOR DETERMINING THE DYNAMIC BEHAVIOR OF A CONNECTION SHAFT |
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| CN208751761U (en) * | 2018-10-22 | 2019-04-16 | 宜宾丰川动力科技有限公司 | A kind of transmission torque test device |
-
2021
- 2021-12-20 CN CN202111560597.1A patent/CN114295266A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT7889U2 (en) * | 2005-06-15 | 2005-10-17 | Avl List Gmbh | METHOD FOR TESTING A DYNAMIC TORQUE GENERATOR AND DEVICE FOR DETERMINING THE DYNAMIC BEHAVIOR OF A CONNECTION SHAFT |
| KR20160148172A (en) * | 2015-06-16 | 2016-12-26 | 한국기계연구원 | Impact durability testing device of gear box |
| CN108760115A (en) * | 2018-05-24 | 2018-11-06 | 北京力信德华科技有限公司 | Testboard |
| CN208751761U (en) * | 2018-10-22 | 2019-04-16 | 宜宾丰川动力科技有限公司 | A kind of transmission torque test device |
Non-Patent Citations (1)
| Title |
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| 邹喜红;向辉;李金晓;席帅杰;胡秋洋;: "电动汽车减速器冲击疲劳试验方法研究", 重庆理工大学学报(自然科学), no. 06, 15 June 2020 (2020-06-15), pages 33 - 39 * |
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| CN115176648A (en) * | 2022-06-20 | 2022-10-14 | 上海第二工业大学 | Intelligent mushroom picking end effector capable of judging picking state |
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