CN110617975A - Tractor linkage tensile test platform - Google Patents
Tractor linkage tensile test platform Download PDFInfo
- Publication number
- CN110617975A CN110617975A CN201911031738.3A CN201911031738A CN110617975A CN 110617975 A CN110617975 A CN 110617975A CN 201911031738 A CN201911031738 A CN 201911031738A CN 110617975 A CN110617975 A CN 110617975A
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- China
- Prior art keywords
- sensor
- oil cylinder
- tractor
- button
- loading
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- 238000009864 tensile test Methods 0.000 title description 2
- 238000002474 experimental method Methods 0.000 claims abstract description 31
- 239000000725 suspension Substances 0.000 claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000001174 ascending effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000005070 sampling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a tension test platform of a tractor suspension device, which comprises a tractor body, an experiment platform, a sensor group and an operation platform, wherein a suspension rod piece is fixedly connected to the suspension position of the tractor body, an experiment groove and a limiting rod are arranged on the surface of the experiment platform, the limiting rod is fixedly connected to the edge of the experiment groove, a hydraulic assembly and an oil cylinder assembly are fixedly connected inside the experiment groove, the output end of the oil cylinder assembly is connected with the suspension rod piece, the sensor group comprises a tension sensor, an angle sensor, a temperature sensor, an oil pressure sensor and a displacement sensor, the displacement sensor is installed on the surface of the suspension rod piece, and the operation platform comprises an electric box, a signal processing box and an industrial personal computer. The invention adopts two modes of manual control and automatic control, is matched with automatic data acquisition and analysis, improves the convenience of operators for experimental operation, and improves the accuracy of experimental measurement and the timeliness of data recording by adopting a sensor group to monitor experimental parameters.
Description
Technical Field
The invention relates to the technical field of agricultural equipment complete machine test equipment, in particular to a tension test platform for a tractor suspension device.
Background
At present, the tractor suspension device lifting capacity test bed commonly used at home and abroad mostly adopts a structure form of manual loading or loading of an oil cylinder hydraulic device.
However, the existing experimental equipment is not enough in automation, usually needs an operator to manually perform data acquisition and analysis, the data acquisition needs to consume more time, experimental data is prone to deviation, meanwhile, manual measurement has large errors, accuracy of the data is affected, working strength of the operator is increased, and multiple people are needed to cooperate to complete an experiment, and the operation is not convenient enough. For this reason, a new technical solution needs to be designed for solution.
Disclosure of Invention
The invention aims to provide a tension test platform for a tractor suspension device, which adopts two modes of manual control and automatic control, is matched with automatic data acquisition and analysis, improves the convenience of operators for experimental operation, and improves the accuracy of experimental measurement and the timeliness of data recording by adopting a sensor group to monitor experimental parameters.
In order to achieve the purpose, the invention provides the following technical scheme: a tension test platform for a tractor suspension device comprises a tractor body, an experiment platform, a sensor group and an operation platform, wherein a suspension rod piece is fixedly connected to the suspension position of the tractor body, an experiment groove and a limiting rod are arranged on the surface of the experiment platform, the limiting rod is fixedly connected to the edge of the experiment groove, a hydraulic assembly and an oil cylinder assembly are fixedly connected to the inner portion of the experiment groove, the output end of the oil cylinder assembly is connected with the suspension rod piece, the sensor group comprises a tension sensor, an angle sensor, a temperature sensor, an oil pressure sensor and a displacement sensor, the tension sensor is fixed between the suspension rod piece and the oil cylinder assembly, the displacement sensor is installed on the surface of the suspension rod piece, the operation platform comprises an electric cabinet, a signal processing box and an industrial personal computer, and an electric cabinet is fixedly connected to the surface of the, the electric control cabinet, the hydraulic assembly and the oil cylinder assembly are respectively connected with an electric box, and the signal processing box is respectively connected with the sensor group and the industrial personal computer.
As an improvement of the technical scheme, the angle sensor is respectively arranged at the rotating positions of the suspension rod piece and the oil cylinder assembly, the temperature sensor is respectively arranged on the surface of the oil tank of the tractor body and the surface of the oil cylinder assembly, and the oil pressure sensor is respectively arranged in the oil tank of the tractor body and the oil cylinder assembly.
As an improvement of the technical scheme, the industrial personal computer comprises a host, a display, a mouse and a keyboard, wherein the display, the mouse and the keyboard are respectively connected with an I/O interface of the host.
As an improvement of the above technical solution, the surface of the electric control cabinet is provided with an emergency stop button, a manual/automatic adjustment button, a motor start button, a loading cylinder advance button, a loading cylinder elevation button, a motor stop button, a loading cylinder retreat button, a loading cylinder descent button, a lift-up button, and a displacement point confirmation button.
As an improvement of the technical scheme, the oil cylinder assembly comprises an adjusting oil cylinder and a loading oil cylinder, the loading oil cylinder is arranged perpendicular to the ground, the adjusting oil cylinder is perpendicular to the loading oil cylinder, and the output end of the adjusting oil cylinder is rotatably connected with the loading oil cylinder.
As an improvement of the technical scheme, a U-shaped frame is arranged at the joint of the tension sensor and the loading oil cylinder, and the U-shaped frame is rotatably connected with the end part of the loading oil cylinder.
As an improvement of the technical scheme, the tension sensor has three measuring ranges of 5t, 10t and 15 t.
As an improvement of the above technical solution, the electrical box 15 is internally provided with an S7-1200PLC module, a CPU1214AC/DC/RLY module, an SM1232 analog output module, and an SM1231 analog input module.
Compared with the prior art, the invention has the following beneficial effects:
1. the tractor lifting force testing device adopts two modes of manual control and automatic control to test the lifting force of the tractor, is matched with automatic data acquisition and analysis, improves the convenience of operators for test operation, and improves the accuracy of test measurement and the timeliness of data recording by adopting a sensor group to monitor test parameters.
2. According to the invention, the industrial personal computer is adopted to arrange and analyze the data and automatically draw the data curve graph, so that experimenters can conveniently analyze and compare the data, the experimental data can be summarized more visually and clearly, the complexity of experimental operation is reduced, and the working efficiency of a test experiment is improved.
Drawings
FIG. 1 is a schematic structural view of a tension test platform of a tractor suspension device according to the present invention;
FIG. 2 is a schematic structural diagram of a console system according to the present invention;
FIG. 3 is a schematic view of the surface structure of the electric cabinet according to the present invention.
In the figure: the device comprises a tractor body-1, an experiment platform-2, a sensor group-3, an operation table-4, a suspension rod piece-5, an experiment groove-6, a limiting rod-7, a hydraulic assembly-8, an oil cylinder assembly-9, a tension sensor-10, an angle sensor-11, a temperature sensor-12, an oil pressure sensor-13, a displacement sensor-14, an electric box-15, a signal processing box-16, an industrial personal computer-17, an electric control cabinet-18, a host computer-19, a display-20, a mouse-21, a keyboard-22, an adjusting oil cylinder-23, a loading oil cylinder-24, a U-shaped frame 25, a PLC module-26, an AC/DC/RLY module-27, an analog quantity output module-28 and an analog quantity input module-29.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a tractor linkage tension test platform, includes tractor body 1, experiment platform 2, sensor group 3 and operation panel 4, tractor body 1's the fixedly connected with in position that hangs member 5, experiment platform 2's surface is equipped with experiment recess 6 and gag lever post 7, gag lever post 7 fixed connection is in the edge of experiment recess 6, experiment recess 6's inside fixedly connected with hydraulic assembly 8 and hydro-cylinder assembly 9, the output of hydro-cylinder assembly 9 is connected with hanging member 5, sensor group 3 includes force sensor 10, angle sensor 11, temperature sensor 12, oil pressure sensor 13 and displacement sensor 14, force sensor 10 is fixed in and hangs between member 5 and the hydro-cylinder assembly 9, displacement sensor 14 is installed on the surface that hangs member 5, operation panel 4 includes electric box 15, a little less than the electric box, The surface of the electric box 15 is fixedly connected with an electric control cabinet 18, the hydraulic assembly 8 and the oil cylinder assembly 9 are respectively connected with the electric box 15, and the signal processing box 16 is respectively connected with the sensor group 3 and the industrial personal computer 17.
In a further improvement, the angle sensor 11 is respectively installed at the rotation positions of the suspension rod 5 and the oil cylinder assembly 9, the temperature sensor 12 is respectively installed on the surface of the oil tank of the tractor body 1 and the surface of the oil cylinder assembly 9, the oil pressure sensor 13 is respectively installed inside the oil tank of the tractor body 1 and the oil cylinder assembly 9, various sensors are used for collecting data, and the convenience and timeliness of data collection are improved.
In a further improvement, the industrial personal computer 17 comprises a host 19, a display 20, a mouse 21 and a keyboard 22, wherein the display 20, the mouse 21 and the keyboard 22 are respectively connected with an I/O interface of the host 19, and the display 20, the mouse 21 and the keyboard 22 are connected with the host 19, so that the industrial personal computer 17 can be operated and used conveniently.
In a further improved mode, the surface of the electric control cabinet 18 is provided with an emergency stop button, a manual/automatic adjusting button, a motor start button, a loading cylinder advancing button, a loading cylinder ascending button, a motor stop button, a loading cylinder retreating button, a loading cylinder descending button, a lifting ascending button and a displacement point confirming button, and by means of various functional buttons on the surface of the electric control cabinet 18, the experiment can be operated conveniently, and the operation convenience is improved.
Further improved, the cylinder assembly 9 comprises an adjusting cylinder 23 and a loading cylinder 24, the loading cylinder 24 is installed perpendicular to the ground, the adjusting cylinder 23 is perpendicular to the loading cylinder 24, the output end of the adjusting cylinder is rotatably connected with the loading cylinder 24, and the adjusting cylinder 23 is vertically connected with the side wall of the vertical loading cylinder 24, so that the position and the angle of the loading cylinder 24 can be conveniently adjusted.
In a further improvement mode, a U-shaped frame 25 is arranged at the joint of the tension sensor 10 and the loading oil cylinder 24, the U-shaped frame 25 is rotatably connected with the end portion of the loading oil cylinder 24, and the U-shaped frame 25 is arranged at the joint of the tension sensor 10 and the loading oil cylinder 24, so that the tension sensor is conveniently rotatably connected with the end portion of the loading oil cylinder 24, and uneven stress caused by angle change is avoided.
In a further improvement manner, the tension sensor 10 has three ranges of 5t, 10t and 15t, and by using the tension sensors 10 with different ranges, different tension can be conveniently measured, the universality of use is improved, and the measurement accuracy of the tension sensor 10 is improved.
Specifically, the electrical box 15 is internally provided with an S7-1200PLC module 26, a CPU1214AC/DC/RLY module 27, an SM1232 analog output module 28, and an SM1231 analog input module 29, and is automatically controlled by using the SM1232 analog output module 28 and the SM1231 analog input module 29 in cooperation with the S7-1200PLC module 26.
The invention adopts two modes of manual control and automatic control to carry out experiments on the lifting force of the tractor, and is matched with automatic data acquisition and analysis, thereby improving the convenience of operators for experimental operation, and improves the accuracy of experimental measurement and the timeliness of data recording by adopting the sensor group 3 to monitor experimental parameters
When the tractor is used, a tractor body 1 is stopped at the edge of an experiment groove 6 on the surface of an experiment platform 2, the tractor body 1 is fixed through a limiting rod 7, a tested tractor suspension rod piece 5 is connected with a lifting frame, the lifting rod piece is arranged at the lowest end, namely, the position is 0, the control mode is set to be a manual mode or an automatic mode, a test point is arranged on an industrial personal computer 17, a tractor lifter handle is operated to a lifting position, a tractor lifter lifting loading oil cylinder 24 is used for driving the suspension rod piece 5 to ascend, and when the suspension rod piece 5 reaches the set test point position, the lifting force at the position is recorded; and comparing the lifting force of the test points, and selecting the maximum value as the maximum lifting force.
Example one
Manual control can be through using "promote to rise" button on the automatically controlled cabinet 18, the tractor raiser promotes loading cylinder 24 and drives and hangs the member 5 and slowly rises, when hanging member 5 and arriving the settlement position, unload the energy storage ware rapidly, and press "displacement point and confirm" button, hang member 5 and stop at the assigned position, note the lifting force here, hang the displacement, the stand angle, loading cylinder angle, the pressure of tractor oil tank, temperature and hydro-cylinder pressure, temperature, hang the lifting force and pass to industrial computer 17 through OPC software and show and save to the excel file in.
Example two
The automatic control realizes the control of the device completely through an S7-1200PLC module in the electric box 15, and a user can manually set sampling points on an interface, wherein the number of the sampling points is 10 at most; after the displacement upper limit and the displacement lower limit are set, the industrial personal computer 17 is enabled to automatically and evenly set sampling points. After the setting is finished, the driver can operate the tractor to start the experiment by pressing the start button. The suspension can automatically stop at a specified position, the residence time is default to 10S, and the modification can be carried out; to immediately proceed to the next test point, the "shift confirm" button can be pressed and the suspension will immediately rise to the next set point. When the highest point is reached, a manual control mode needs to be switched, the suspension is descended to the lowest point, then a second group of experiments are carried out, and three groups of experiments can be carried out in total.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a tractor linkage pulling force test platform, includes tractor body (1), experiment platform (2), sensor group (3) and operation panel (4), its characterized in that: tractor body (1) hang position fixedly connected with and hang member (5), the surface of experiment platform (2) is equipped with experiment recess (6) and gag lever post (7), gag lever post (7) fixed connection is in the edge of experiment recess (6), the inside fixedly connected with hydraulic assembly (8) and the hydro-cylinder assembly (9) of experiment recess (6), the output of hydro-cylinder assembly (9) is connected with hanging member (5), sensor group (3) are including force sensor (10), angle sensor (11), temperature sensor (12), oil pressure sensor (13) and displacement sensor (14), force sensor (10) are fixed in and hang between member (5) and hydro-cylinder assembly (9), displacement sensor (14) are installed in the surface that hangs member (5), operation panel (4) are including electric box (15), The hydraulic control system comprises a signal processing box (16) and an industrial personal computer (17), wherein an electric control cabinet (18) is fixedly connected to the surface of the electric box (15), the electric control cabinet (18), a hydraulic assembly (8) and an oil cylinder assembly (9) are respectively connected with the electric box (15), and the signal processing box (16) is respectively connected with a sensor group (3) and the industrial personal computer (17).
2. The tractor suspension tension test platform of claim 1, wherein: angle sensor (11) are installed respectively in the rotation department that hangs member (5) and hydro-cylinder assembly (9), temperature sensor (12) are installed respectively in the oil tank of tractor body (1) and the surface of hydro-cylinder assembly (9), oil pressure sensor (13) are installed respectively in the inside of the oil tank of tractor body (1) and hydro-cylinder assembly (9).
3. The tractor suspension tension test platform of claim 1, wherein: the industrial personal computer (17) comprises a host (19), a display (20), a mouse (21) and a keyboard (22), wherein the display (20), the mouse (21) and the keyboard (22) are respectively connected with an I/O interface of the host (19).
4. The tractor suspension tension test platform of claim 1, wherein: the surface of the electric control cabinet (18) is provided with an emergency stop button, a manual/automatic adjusting button, a motor starting button, a loading cylinder advancing button, a loading cylinder ascending button, a motor stopping button, a loading cylinder retreating button, a loading cylinder descending button, a lifting ascending button and a displacement point confirming button.
5. The tractor suspension tension test platform of claim 1, wherein: the oil cylinder assembly (9) comprises an adjusting oil cylinder (23) and a loading oil cylinder (24), the loading oil cylinder (24) is installed perpendicular to the ground, the adjusting oil cylinder (23) is perpendicular to the loading oil cylinder (24) and the output end of the adjusting oil cylinder is rotatably connected with the loading oil cylinder (24).
6. The tractor suspension tension test platform of claim 1, wherein: and a U-shaped frame (25) is arranged at the joint of the tension sensor (10) and the loading oil cylinder (24), and the U-shaped frame (25) is rotatably connected with the end part of the loading oil cylinder (24).
7. The tractor suspension tension test platform of claim 1, wherein: the tension sensor (10) has three measuring ranges of 5t, 10t and 15 t.
8. The tractor suspension tension test platform of claim 1, wherein: an S7-1200PLC module, a CPU1214AC/DC/RLY module, an SM1232 analog output module and an SM1231 analog input module are arranged in the electric box (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031738.3A CN110617975A (en) | 2019-10-28 | 2019-10-28 | Tractor linkage tensile test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031738.3A CN110617975A (en) | 2019-10-28 | 2019-10-28 | Tractor linkage tensile test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617975A true CN110617975A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031738.3A Pending CN110617975A (en) | 2019-10-28 | 2019-10-28 | Tractor linkage tensile test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617975A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096615A (en) * | 2022-06-09 | 2022-09-23 | 江苏省农业机械试验鉴定站 | Agricultural wheeled tractor linkage lift capacity test system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004020272A (en) * | 2002-06-13 | 2004-01-22 | Tokyu Car Corp | Turning test device, turning test method, turning test program, and recording medium |
| CN201688976U (en) * | 2010-04-20 | 2010-12-29 | 洛阳西苑车辆与动力检验所有限公司 | Tractor suspender lifting capability test bed |
| CN202631266U (en) * | 2012-05-21 | 2012-12-26 | 山东省农业机械科学研究所 | Tractor hydraulic lifting test bench |
| CN203310639U (en) * | 2013-06-24 | 2013-11-27 | 邱韶峰 | Tractor suspension device lifting capacity test bench |
| CN203758732U (en) * | 2014-03-14 | 2014-08-06 | 南京农业大学 | Electro-hydraulic suspension loading experiment table of tractor |
| CN109357894A (en) * | 2018-11-07 | 2019-02-19 | 吉林大学 | Tractor rear suspension system off-line test device and its detection method |
-
2019
- 2019-10-28 CN CN201911031738.3A patent/CN110617975A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004020272A (en) * | 2002-06-13 | 2004-01-22 | Tokyu Car Corp | Turning test device, turning test method, turning test program, and recording medium |
| CN201688976U (en) * | 2010-04-20 | 2010-12-29 | 洛阳西苑车辆与动力检验所有限公司 | Tractor suspender lifting capability test bed |
| CN202631266U (en) * | 2012-05-21 | 2012-12-26 | 山东省农业机械科学研究所 | Tractor hydraulic lifting test bench |
| CN203310639U (en) * | 2013-06-24 | 2013-11-27 | 邱韶峰 | Tractor suspension device lifting capacity test bench |
| CN203758732U (en) * | 2014-03-14 | 2014-08-06 | 南京农业大学 | Electro-hydraulic suspension loading experiment table of tractor |
| CN109357894A (en) * | 2018-11-07 | 2019-02-19 | 吉林大学 | Tractor rear suspension system off-line test device and its detection method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096615A (en) * | 2022-06-09 | 2022-09-23 | 江苏省农业机械试验鉴定站 | Agricultural wheeled tractor linkage lift capacity test system |
| CN115096615B (en) * | 2022-06-09 | 2024-04-09 | 江苏省农业机械试验鉴定站 | Lifting capacity testing system for suspension device of agricultural wheeled tractor |
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Application publication date: 20191227 |