CN210005258U - tractor PTO loading vehicle - Google Patents
tractor PTO loading vehicle Download PDFInfo
- Publication number
- CN210005258U CN210005258U CN201921151939.2U CN201921151939U CN210005258U CN 210005258 U CN210005258 U CN 210005258U CN 201921151939 U CN201921151939 U CN 201921151939U CN 210005258 U CN210005258 U CN 210005258U
- Authority
- CN
- China
- Prior art keywords
- tractor
- eddy current
- frame
- current dynamometer
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a tractor loading test technical field provides tractor PTO loading cars, which comprises a frame, the test subassembly, link assembly and control assembly, control assembly sets up in the frame, the test subassembly includes the output spindle nose that connects gradually the key-type, torque sensor and eddy current dynamometer, link assembly and output spindle nose all set up the end at the frame, the link assembly is connected with the traction point, the output spindle nose passes through universal joint coupler and power output shaft key-type connection, control assembly storage has load spectrum database, control assembly and torque sensor, eddy current dynamometer and tractor on each sensor electricity be connected, with through control assembly adjustment eddy current dynamometer simulation actual operating mode, this application acquires the information of sensor on the tractor through control assembly, realize load spectrum loading simulation actual work condition to the tractor, cooperate torque sensor feedback regulation eddy current dynamometer simultaneously, promote tractor performance test efficiency.
Description
Technical Field
The utility model relates to a tractor loading detection test technical field, in particular to kinds of tractor PTO loading cars.
Background
A tractor power take-off (PTO for short) is which is a main power take-off component during operation of a tractor, the operating performance of the component affects the agricultural operating efficiency, and in order to examine various performances of the tractor in the operation process, such as power take-off performance, engine load characteristic, oil consumption characteristic and system stability, a tractor PTO performance test is indispensable in a traditional detection project.
The existing PTO test bed of the tractor can not meet the test conditions, the stability and the quick response of the loading can not be ensured for the dynamic load, and the detection and the evaluation of the field actual operation load on the operation characteristics of the tractor machines and tools can not be ensured to difficulties.
SUMMERY OF THE UTILITY MODEL
() problems to be solved
In view of the technical defects and application requirements, the application provides tractor PTO loading vehicles, and aims to provide detection devices capable of accurately simulating the actual operation process of a tractor in the field.
(II) technical scheme
In order to solve the problems, the utility model provides an tractor PTO loading cars, including frame, test component, link assembly and control component, the control component sets up in the frame, the test component includes output spindle nose, torque sensor and the electric eddy current dynamometer of key-type in proper order, link assembly with the output spindle nose all sets up the end of frame, the link assembly is connected with the traction point of the tractor of being surveyed, the output spindle nose passes through universal joint shaft coupling and the power output shaft key-type connection of tractor, storage has the load spectrum database in the control component, the control component with torque sensor, electric eddy current dynamometer and each sensor electricity on the tractor are connected, in order to adjust through the control component electric eddy current simulation dynamometer actual work condition.
, the control module adjusts the eddy current dynamometer according to the load spectrum in the load spectrum database and the torque sensor and the sensors on the tractor.
the walking stick further comprises a chassis, supporting legs and land wheels, wherein the chassis is arranged at the bottom of the frame, the supporting legs are arranged at the bottom corners of the periphery of the frame, the supporting legs are electrically connected with the control assembly, the height of the chassis is adjusted through the control assembly, and the land wheels are arranged on the frame and can be lifted.
, a heat sink is arranged on the frame and electrically connected with the control assembly, the heat sink comprises side heat dissipation fans and top heat dissipation fans, the side heat dissipation fans are arranged on two sides of the frame, and the top heat dissipation fans are arranged on the top of the frame.
, a control terminal and a data acquisition mechanism, wherein the control terminal is electrically connected with the data acquisition mechanism, the eddy current dynamometer, the supporting leg, the land wheel and the radiator respectively, the data acquisition mechanism is electrically connected with the torque sensor and each sensor on the tractor, the data acquisition mechanism transmits various acquired signals to the control terminal, and the control terminal adjusts the eddy current dynamometer according to the signals.
, the control assembly further comprises a display movably disposed outside and inside the frame by an electric push rod.
, the number of the electric eddy current dynamometer is multiple, and the electric eddy current dynamometers are connected in sequence through a transmission shaft.
, the test assembly further comprises a bearing seat, a bearing seat support and an electric eddy current dynamometer mounting support, wherein the bearing seat bears the output shaft head and is fixed in the frame through the bearing seat support, and the electric eddy current dynamometer is fixed in the frame through the electric eddy current dynamometer mounting support.
In order to solve the above problem, the present invention further provides loading methods based on load spectrum, wherein the loading method comprises the following steps:
adjusting the height of the supporting legs according to the height of the power output shaft of the detected tractor, enabling the output shaft head and the power output shaft of the tractor to meet the height requirement, and fixing the frame on the ground;
the length of the universal joint coupler is adjusted, and the power output shaft and the output shaft head of the tractor are connected through the universal joint coupler; adjusting the length and the angle of the connecting frame assembly, and connecting the connecting frame assembly with a lower traction point of the tractor;
selecting load spectrum from load spectrum database, opening radiator, starting detected tractor, gradually increasing oil , and regulating electric eddy current dynamometer according to the signal and load spectrum collected by data acquisition mechanism.
, the load spectrum database includes a plurality of load spectra providing torque and speed of the tractor under test during actual operation under different loads.
(III) advantageous effects
The utility model provides an tractor PTO loading car, acquire the information of each sensor on the tractor through control assembly, monitor tractor power take off rotational speed, the moment of torsion, engine power, key parameter such as oil consumption, realize the load spectrum loading to the tractor, simulation actual operation operating mode, deuterogamy torque sensor feedback adjusts the eddy current dynamometer, the torque and the rotational speed of dynamic adjustment eddy current dynamometer, effectual promotion tractor performance test efficiency, provide accurate performance evaluation report, provide the reference for producer and user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, is briefly introduced in the drawings required to be used in the description of the embodiments or the prior art, it is obvious that the drawings in the following description are embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the external structure of a tractor PTO loader provided by an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of a tractor PTO loader provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control assembly according to an embodiment of the present invention;
the device comprises a connecting frame assembly 1, a frame 2, a testing component 3, a control component 4, a ground wheel 5, a ground wheel 6, supporting legs 7, a radiator 8, a power supply 9, a display 10, an electric push rod 11, a chassis 12, a side , an output shaft head 31, a torque sensor 32, a torque sensor 33, an eddy current dynamometer 34, a transmission shaft 35, a bearing seat 36, a bearing seat support 37 and an eddy current dynamometer mounting support 37.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of the present invention , rather than all embodiments.
The embodiment of the utility model provides an tractor PTO load cars, as shown in fig. 1 and fig. 2, this tractor PTO load car includes frame 2, test component 3, link assembly 1 and control component 4. control component 4 all sets up in frame 2, test component 3 includes key-connected output spindle nose 31 in proper order, torque sensor 32 and eddy current dynamometer machine 33. eddy current dynamometer machine 33 is air-cooled eddy current dynamometer machine. link assembly 1 and output spindle nose 31 all set up the end at frame 2, link assembly 1 is connected with the traction point of being surveyed, output spindle nose 31 passes through the universal joint shaft coupling and is connected with the power take off axle of tractor, output spindle nose 31 can spread into test component 3 with the moment of torsion and the rotational speed of tractor, link assembly 1 is used for fixing tractor and detection device's relative position when the load test goes on, realize the test position regulation through adjusting length, the storage has the load spectrum in the control component 4, control component 4 is connected with torque sensor 32, eddy current dynamometer machine 33 and tractor on the tractor each sensor electricity, in order to adjust the electric eddy current dynamometer machine database 33 through control component 4 operation simulation operating mode.
The control component 4 controls the eddy current dynamometer 33 to simulate actual working conditions according to the load spectrum in the load spectrum database, and the control component 4 adjusts the eddy current dynamometer 33 in real time according to the torque sensor 32 and each sensor on the tractor.
In this embodiment, in order to satisfy the loading of the torque and the rotation speed of the power output shaft of the tractor, the number of the eddy current dynamometers 33 may be plural, and the eddy current dynamometers 33 are connected in sequence by the transmission shaft 34. For example, two eddy current dynamometers 33 are used to detect a 180 horsepower tractor PTO, and if the horsepower is greater than 180 horsepower, a plurality of eddy current dynamometers 33 may be connected in series. Each eddy current dynamometer 33 adopts the end face tooth cross connection transmission shaft 34, so that different installation errors can be solved, the play during high-speed rotation is avoided, and the transmission stability is improved.
In the process of the load simulation test, the control component 4 is used for acquiring information of each sensor on the tractor. Each sensor on the tractor comprises a temperature sensor, an oil consumption sensor and the like. The control component 4 monitors key parameters such as power output rotating speed, torque, engine power, oil consumption and the like of the tractor. And selecting a required load spectrum from the control component 4, reading the selected load spectrum by the control component 4, adjusting the torque and the rotating speed of the eddy current dynamometer 33 according to the load spectrum, and simulating the actual working condition corresponding to the load spectrum, namely simulating the actual working load by the tractor PTO loading vehicle. In order to ensure the loading stability and efficiency, the control component 4 adjusts the eddy current dynamometer 33 by matching with signals fed back by the torque sensor 32 and other sensors in the process of adjusting the eddy current dynamometer 33 through a load spectrum, so as to realize dynamic adjustment of the eddy current dynamometer 33.
The embodiment of the utility model provides kinds of tractor PTO loading cars, acquire the information of each sensor on the tractor through control assembly, monitor tractor power take off rotational speed, the moment of torsion, engine power, key parameter such as oil consumption, realize the load spectrum loading to the tractor, simulation actual operation operating mode, deuterogamy torque sensor feedback regulation eddy current dynamometer, the torque and the rotational speed of dynamic regulation eddy current dynamometer, effectual promotion tractor performance test efficiency, provide accurate performance evaluation report, provide the reference for producer and user.
Based on the above embodiments, in preferred embodiments, the tractor PTO loading vehicle is a mobile test bed, and can complete various tests of the tractor PTO in various occasions such as indoors or outdoors, as shown in fig. 1 and fig. 2, the tractor PTO loading vehicle further comprises a chassis 11, support legs 6 and ground wheels 5, wherein the chassis 11 is arranged at the bottom of the frame 2, the support legs 6 are arranged at the bottom corners of the periphery of the frame 2, the support legs 6 are electrically connected with the control assembly 4, the height of the chassis 11 is adjusted through the control assembly 4 to match the heights of different horsepower tractors, the ground wheels 5 are arranged on the frame 2, and the ground wheels 5 can be lifted and lowered and used for walking a mobile detection device at ordinary times, and can be retracted during the tests so as to facilitate the movement and fixation of the tractor PTO loading vehicle.
Wherein, frame 2 is provided with side 12, and side 12 is used for looking over equipment and carrying out daily maintenance and repair.
In this embodiment, the frame 2 is provided with a heat sink 7, the heat sink 7 is electrically connected to the control component 4, and the heat sink 7 includes side heat dissipation fans and a top heat dissipation fan, the side heat dissipation fans are disposed on two sides of the frame 2, and the top heat dissipation fan is disposed on the top of the frame 2.
In the embodiment, the device further comprises a power supply 8, wherein the power supply 8 is electrically connected with the torque sensor 32, the eddy current dynamometer 33, the control assembly 4, the supporting legs 6, the land wheels 5 and the radiator 7 so as to supply power to all parts in the detection device, and the power supply 8 supplies power to the parts by adopting a large-capacity storage battery, so that the test requirements in outdoor fields can be met.
In the embodiment, the test assembly 3 further comprises a bearing seat 35, a bearing seat support 36 and an eddy current dynamometer mounting support 37, the bearing seat 35 bears the output shaft head 31 and is fixed in the frame 2 through the bearing seat support 36, the eddy current dynamometer 33 is fixed in the frame 2 through the eddy current dynamometer mounting support 37, the end of the torque sensor 32 is connected with the bearing seat 35 through a flange, the other end of the torque sensor 32 is connected with the eddy current dynamometer 33 through a flange, and the structure can ensure that the torque sensor 32 can accurately acquire torque and rotating speed signals.
In this embodiment, as shown in fig. 1 and 2, the display 9 is movably disposed outside the frame 2 and inside the frame 2 by an electric push rod 10. As shown in fig. 3, the control assembly includes: control terminal, display, data acquisition mechanism. The control terminal is respectively and electrically connected with the display, the data acquisition mechanism, the eddy current dynamometer, the supporting leg, the land wheel and the radiator, and the data acquisition mechanism is electrically connected with the torque sensor, the temperature sensor and the oil consumption sensor on the tractor. The electric eddy current dynamometer is electrically connected with the control terminal through the CAN controller, and the CAN controller is used for outputting a loading signal of the electric eddy current dynamometer. The control terminal selects a load spectrum through the load spectrum database, the torque and the rotating speed of the eddy current dynamometer are adjusted according to the load spectrum, the data acquisition mechanism transmits various acquired signals to the control terminal, and the control terminal adjusts the eddy current dynamometer according to the signals and displays the signals through the display.
The data acquisition mechanism is used for acquiring signals of various sensors and inputting the signals to the control terminal for processing. The control terminal can be developed by using LabVIEW optionally, and the whole control of the loading test bed is realized by the following steps: the method comprises the steps of sensor data acquisition, load spectrum analysis and output, loading control of an eddy current dynamometer, starting and stopping of a radiator and stretching of an electric push rod.
In conclusion, in the process of the load simulation test, a power supply is firstly switched on, a detected tractor is parked at a designated position, the height of a support leg is adjusted according to the height of a power output shaft of the detected tractor, so that an output shaft head and the power output shaft of the tractor meet the height requirement, a frame is fixed on the ground, the length of a universal joint coupler is adjusted, the power output shaft and the output shaft head of the tractor are connected through the universal joint coupler, the length and the angle of a connecting frame assembly are adjusted, the connecting frame assembly is connected with a lower traction point of the tractor, a control terminal selects a load spectrum in a load spectrum database, a radiator is started, a display is lifted from the frame and displays related data, then the detected tractor is started, oil is gradually increased, a data acquisition mechanism transmits various acquired signals to the control terminal, the control terminal adjusts an electric eddy current dynamometer according to the signals and the load spectrum acquired by the data acquisition mechanism and displays through the display, after the test is finished, the detected tractor is closed, the power output shaft head and the output shaft head of the tractor are released, the connecting frame is released, the lower traction point of the connecting frame and the control terminal gives performance evaluation and the comparison curve and the display is closed.
The embodiment of the utility model provides loading methods based on load spectrum, this loading method detects through above-mentioned tractor PTO loading vehicle, as shown in figure 1 and figure 2, this tractor PTO loading vehicle includes frame 2, test component 3, link assembly 1 and control assembly 4, control assembly 4 all sets up in frame 2, test component 3 includes output spindle nose 31, torque sensor 32 and eddy current dynamometer machine 33 that connect gradually, eddy current dynamometer machine 33 is air-cooled eddy current dynamometer machine, link assembly 1 and output spindle nose 31 all set up at frame 2's end, link assembly 1 is connected with the traction point of the tractor under test, output spindle nose 31 passes through universal joint coupler and the power output shaft key-type connection of tractor, output spindle nose 31 can pass through test component 3 with the moment of torsion and the rotational speed of tractor, link assembly 1 is used for fixing the relative position of tractor and detection device when the loading test is carried out, realize through adjusting length that test position is adjusted, the storage has load spectrum in control component 4, control component 4 and torque sensor 32, eddy current dynamometer machine 33 and tractor are connected through the electric connection of the test component, see more specific description about the electric eddy current detection device that this test device is no longer referred to this drawing.
The loading method comprises the following steps:
step S1: the height of the supporting legs is adjusted according to the height of the power output shaft of the detected tractor, so that the output shaft head and the power output shaft of the tractor meet the height requirement, and the frame is fixed on the ground.
Step S2: the length of the universal joint coupler is adjusted, and the power output shaft and the output shaft head of the tractor are connected through the universal joint coupler; the length and the angle of the connecting frame assembly are adjusted, and the connecting frame assembly is connected with a lower traction point of the tractor.
And S3, selecting a load spectrum from the load spectrum database, starting a radiator, starting the detected tractor, gradually increasing oil , and adjusting the eddy current dynamometer according to the signal acquired by the data acquisition mechanism and the load spectrum.
During the load simulation test, the power supply is first switched on, the detected tractor is parked at the designated position, the height of the support legs is adjusted according to the height of the power output shaft of the detected tractor, the output shaft head and the power output shaft of the tractor meet the height requirement, the frame is fixed on the ground, the length of the universal joint coupler is adjusted, the power output shaft and the output shaft head of the tractor are connected through the universal joint coupler, the length and the angle of the link assembly are adjusted, the link assembly is connected with the lower traction point of the tractor, the control terminal selects a load spectrum in the load spectrum database, the radiator is started, the display is lifted from the frame and displays relevant data, the detected tractor is started again, the oil is gradually increased , the data acquisition mechanism transmits various acquired signals to the control terminal, the control terminal adjusts the electric eddy current dynamometer according to the signals acquired by the data acquisition mechanism and the load spectrum, the display is displayed through the display, the detected tractor is closed, the power output shaft head and the output shaft head of the tractor are loosened, the link assembly and the tractor are loosened, the control terminal gives out performance evaluation and the comparison curve through the display, and the power supply is closed, and the display is closed.
The field operation load spectrum is obtained by a large number of field tests, and is obtained by screening and sorting, which is equivalent to databases and comprises various operation parameters of the tractor under different working conditions, such as load loading parameters including soil resistance, tillage depth, PTO torque, PTO rotating speed and operation time, and performance evaluation parameters including operation speed, engine power, oil consumption, oil temperature, oil pressure, noise and the like.
In the load simulation test process, the torque and the rotating speed of the eddy current dynamometer can be dynamically adjusted by inputting the torque and the rotating speed in the load spectrum, and the field working condition is simulated. In addition, in the whole test process, the state of the tractor is detected by installing various sensors, so that the change curves of the engine power, the oil temperature and the oil consumption are obtained, and the performance evaluation is realized.
The embodiment of the utility model provides an loading methods based on load spectrum, acquire the information of each sensor on the tractor through control assembly, monitor tractor power output rotational speed, the moment of torsion, engine power, key parameter such as oil consumption, realize the load spectrum loading to the tractor, simulation actual operation operating mode, deuterogamy torque sensor feedback regulation eddy current dynamometer, the torque and the rotational speed of dynamic regulation eddy current dynamometer, effectual promotion tractor performance test efficiency, provide accurate performance evaluation report, provide the reference for producer and user.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, that is, may be located in places, or may be distributed on a plurality of network units.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1, tractor PTO loading vehicle, characterized by that, includes:
the test device comprises a frame, a test component, a connecting frame assembly and a control component, wherein the control component is arranged in the frame and comprises an output shaft head, a torque sensor and an eddy current dynamometer which are sequentially connected in a key mode, the connecting frame assembly and the output shaft head are both arranged at the end of the frame, the connecting frame assembly is connected with a traction point of a tractor to be tested, the output shaft head is connected with a power output shaft of the tractor through a universal joint coupler in a key mode, a load spectrum database is stored in the control component, and the control component is electrically connected with the torque sensor, the eddy current dynamometer and sensors on the tractor so as to simulate actual operation working conditions through the control component.
2. The tractor PTO loading vehicle according to claim 1, wherein the control component controls the eddy current dynamometer to simulate an actual operation condition according to the load spectrum in the load spectrum database, and the control component adjusts the eddy current dynamometer according to the torque sensor and each sensor on the tractor in real time.
3. The tractor PTO loading vehicle of claim 1, further comprising: a chassis, legs and ground wheels; the chassis is arranged at the bottom of the frame, the supporting legs are arranged at the bottom corners of the periphery of the frame, the supporting legs are electrically connected with the control assembly, and the height of the chassis is adjusted through the control assembly; the land wheel is arranged on the frame, and can be lifted.
4. The tractor PTO load vehicle of claim 3, wherein a heat sink is provided on the frame, the heat sink being electrically connected to the control assembly, the heat sink comprising: the side heat radiation fan is arranged on two sides of the frame, and the top heat radiation fan is arranged on the top of the frame.
5. The tractor PTO loading vehicle of claim 4, wherein the control assembly comprises:
the system comprises a control terminal and a data acquisition mechanism; the control terminal is electrically connected with the data acquisition mechanism, the eddy current dynamometer, the supporting leg, the land wheel and the radiator respectively, and the data acquisition mechanism is electrically connected with the torque sensor and each sensor on the tractor; the data acquisition mechanism transmits various acquired signals to the control terminal, and the control terminal adjusts the eddy current dynamometer according to the signals.
6. The tractor PTO loading vehicle of claim 5, wherein the control assembly further comprises: a display; the display is movably arranged outside the frame and in the frame through an electric push rod.
7. The tractor PTO loading vehicle according to claim 1, wherein the number of the eddy current dynamometer is plural, and each eddy current dynamometer is sequentially connected in key by a transmission shaft.
8. The tractor PTO loading vehicle of claim 1, wherein the test assembly further comprises: the device comprises a bearing seat, a bearing seat bracket and an electric eddy current dynamometer mounting bracket; the bearing seat bears the output shaft head and is fixed in the frame through the bearing seat bracket; the electric eddy current dynamometer is fixed in the frame through the electric eddy current dynamometer mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151939.2U CN210005258U (en) | 2019-07-22 | 2019-07-22 | tractor PTO loading vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151939.2U CN210005258U (en) | 2019-07-22 | 2019-07-22 | tractor PTO loading vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210005258U true CN210005258U (en) | 2020-01-31 |
Family
ID=69310819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921151939.2U Expired - Fee Related CN210005258U (en) | 2019-07-22 | 2019-07-22 | tractor PTO loading vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210005258U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399371A (en) * | 2020-03-13 | 2020-07-10 | 洛阳拖拉机研究所有限公司 | Simulation rotary cultivator control system |
| CN112067305A (en) * | 2020-07-27 | 2020-12-11 | 洛阳西苑车辆与动力检验所有限公司 | Engine loading test facility for whole agricultural equipment and test detection method |
| CN112776907A (en) * | 2021-01-21 | 2021-05-11 | 中国农业大学 | Disc type tractor traction load vehicle |
| CN114687878A (en) * | 2022-04-14 | 2022-07-01 | 河南科技大学 | PTO loading system for stable speed-raising of tractor engine in full-speed region and control method |
-
2019
- 2019-07-22 CN CN201921151939.2U patent/CN210005258U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399371A (en) * | 2020-03-13 | 2020-07-10 | 洛阳拖拉机研究所有限公司 | Simulation rotary cultivator control system |
| CN111399371B (en) * | 2020-03-13 | 2022-10-25 | 洛阳拖拉机研究所有限公司 | Control system of analog rotary cultivator |
| CN112067305A (en) * | 2020-07-27 | 2020-12-11 | 洛阳西苑车辆与动力检验所有限公司 | Engine loading test facility for whole agricultural equipment and test detection method |
| CN112776907A (en) * | 2021-01-21 | 2021-05-11 | 中国农业大学 | Disc type tractor traction load vehicle |
| CN112776907B (en) * | 2021-01-21 | 2023-03-14 | 中国农业大学 | Disc type tractor traction load vehicle |
| CN114687878A (en) * | 2022-04-14 | 2022-07-01 | 河南科技大学 | PTO loading system for stable speed-raising of tractor engine in full-speed region and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210005258U (en) | tractor PTO loading vehicle | |
| CN112254975A (en) | Tractor PTO loading vehicle and loading method based on load spectrum | |
| CN104180997B (en) | A kind of vehicle thermal balance ability indoor test device and method | |
| CN108507802B (en) | Integrated test bed for reliability indoor complete machine of tractor and test method thereof | |
| CN206161814U (en) | Servo motor reliability testing system | |
| CN102944430B (en) | Motorcycle frame actual running load spectrum fatigue reproduction test method | |
| CN202393602U (en) | Integrated loading testing table for high-power wheeled tractor | |
| Singh et al. | Computerized instrumentation system for monitoring the tractor performance in the field | |
| CN107560870B (en) | Simulated climbing test method for electric automobile | |
| CN106950019B (en) | Photovoltaic tracking bracket low-frequency vibration simulator stand and test method | |
| KR20220136930A (en) | Fatigue test equipment for automobile chassis simulation road test | |
| CN107264834A (en) | A kind of agricultural unmanned plane indoor test platform and method of testing | |
| CN206470066U (en) | A kind of power assembly of electric automobile testboard bay | |
| CN108918006A (en) | A kind of electrical moving agricultural machinery and implement farming power consumption test rack | |
| CN208520597U (en) | Complete machine multi-function test stand in tractor reliability room | |
| CN107290150A (en) | The vertical multistage spectrum test-bed of engine mounting assembly and its test method | |
| CN106226645A (en) | Connect detection device and method | |
| CN205919960U (en) | Unmanned aerial vehicle power testing system | |
| CN105136468A (en) | Farmland ground effective excitation spectrum measurement device and method | |
| CN114755028A (en) | Test bed for reliability and durability of whole vehicle, control method and medium | |
| CN201984109U (en) | Eddy current dynamometric system | |
| CN113092138A (en) | Loading method, evaluation method and loading device for simulating tractor force adjustment control | |
| CN107860567A (en) | Automobile engine wheel train part noise fest platform | |
| CN104502121B (en) | Dynamic coupling system performance test apparatus | |
| CN114755027B (en) | Whole vehicle multiaxial loading test bed, test method and medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200131 Termination date: 20210722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |