CN203274995U - Motor-driven adjustable biological straw pulling force measuring device - Google Patents

Motor-driven adjustable biological straw pulling force measuring device Download PDF

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Publication number
CN203274995U
CN203274995U CN 201320300499 CN201320300499U CN203274995U CN 203274995 U CN203274995 U CN 203274995U CN 201320300499 CN201320300499 CN 201320300499 CN 201320300499 U CN201320300499 U CN 201320300499U CN 203274995 U CN203274995 U CN 203274995U
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China
Prior art keywords
pulling force
line wheel
motor
frame
biological straw
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Withdrawn - After Issue
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CN 201320300499
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Chinese (zh)
Inventor
张国忠
李怡
周勇
吴龙兵
汲文峰
黄海东
樊啟洲
李兆东
张翼翔
翟康毅
张强
张沙沙
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Huazhong Agricultural University
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Huazhong Agricultural University
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Priority to CN 201320300499 priority Critical patent/CN203274995U/en
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Abstract

The utility model discloses a motor-driven adjustable biological straw pulling force measuring device, comprises a rack, a support frame and a stepping motor disposed on the rack, a first line wheel disposed on an output shaft of the stepping motor, a second line wheel disposed on the support frame, a pulling sleeve, a pulling rod, a steel wire rope whose one end is connected with the pulling rod, a tension sensor disposed between the pulling sleeve and the pulling rod, a data collection card which is connected with a signal output end of the tension sensor, and a controller which is connected with a control end of the stepping motor. The other end of the steel wire rope is fixed on the first line wheel through steering by the second line wheel. A pulling clamping set is fixedly connected in the pulling sleeve through a fastening bolt. The pulling sleeve is disposed on a side of the support frame. The first line wheel is disposed on the other side of the support frame. The device can effectively reduce human labor intensity of measurement, and has good adaptability to outdoor tests. Acquired data can provide reference for the design of biological straw harvest machinery.

Description

Motor-driven adjustable biological straw pulling force measurement mechanism
Technical field
The utility model relates to biological straw root system mechanical characteristic field of measuring technique, refers to particularly a kind of motor-driven adjustable biological straw pulling force measurement mechanism.
Background technology
Biological straw such as crudefiber crop, sapling, tobacco, cotton etc. also can be used for papermaking, making artificial plate etc. except for the production of the renewable biomass energy, have huge economic benefit.Some biological straw root systems need larger pulling force just it can be extracted in the situation that the suitable growth phase of soil nutrient, moisture and soil property when flourishing, is combined with soil closely.Simultaneously, the reason such as, branch inconsistent due to biological straw stem thickness is many causes artificial results intensity very big, therefore needs to adopt the biological straw harvest machinery to gather in.Yet the power and the angle that need due to the biological straw of choosing under the different soils environment are not identical, so before biological straw Machine Design or field work, need to carry out the measurement of biological straw pulling force, and set closing mutually of biological straw harvest machinery according to measurement result and pull out parameter.
At present, measurement research about biological straw root system mechanical characteristic both at home and abroad still is in the starting stage, manyly studies show that biological straw is working the friction force that need overcome in pulling out process between soil and root system and adhesion etc., the growing state of the size of pulling force and the soil regime of plantation, biological straw, biological straw diameter, to pull out the factor such as angle relevant.Yet measurement mechanism majority up to now is the artificial application of force, therefore not only waste time and energy, and the artificial application of force is unstable, is difficult to guarantee that pulling force can at the uniform velocity load, and even probably produces moment of torsion, and measuring process has larger error.
The utility model content
The purpose of this utility model will provide a kind of motor-driven adjustable biological straw pulling force measurement mechanism exactly, these apparatus and method can effectively reduce the hand labor intensity that the biological straw pulling force is measured, improve the accuracy of measurement result, outdoor test is had good adaptability, and the data of collection can be the design of biological straw harvest machinery reference are provided.
for realizing this purpose, the motor-driven adjustable biological straw pulling force measurement mechanism that the utility model is designed, it is characterized in that: it comprises frame, be arranged on bracing frame and stepper motor on frame, the reducer casing that is connected with the stepper motor output shaft, the First Line wheel that is connected with reducer casing, be arranged on the second line wheel on bracing frame, be provided with and pulled out rising of folder and pull out sleeve, play dead man, the wire rope that one end is connected with a dead man, be arranged on the pulling force sensor that pulls out between sleeve and a dead man, the data collecting card that is connected with the pulling force sensor signal output part, the computer that is connected with data collecting card, the controller that is connected with the step motor control end, wherein, described is pulled out the both sides that sleeve and First Line wheel lays respectively at bracing frame, the other end of described wire rope is fixed on the First Line wheel after turning to by the second line wheel.
Also be provided with on described frame for having measured and pull out sleeve and work the curved scale chi that pulls out angle.
Also be provided with chute and lock-screw on described frame, support frame as described above is positioned at chute and is connected with frame by lock-screw.
In technique scheme, it also comprises four studdle seats that all are threaded with frame, and upper locking nut and lower locking nut all have been threaded on described each studdle seat.
Described two sides of pulling out sleeve also are provided with mounting hole, described is pulled out folder and comprises two clamping plate and clamping screws that are equipped with backing pin and locking hole, the centre of described every clamping plate all is bent into circular-arc, described two clamping plates is relatively to layout, described two backing pins insert respectively in two mounting holes, and described clamping screw is positioned at locking hole.
The top of support frame as described above is provided with the second line wheel installing plate, and described the second line wheel installing plate is provided with a plurality of the second line wheel mounting holes along short transverse, and described the second line wheel is connected with bracing frame by the second line wheel mounting hole.
Described dead man, pulling force sensor and rise and pull out sleeve and be positioned on same axis.
The beneficial effects of the utility model are:
1) the utility model adopts the mechanization biological straw to rise and pulls out metering system, compares traditional artificial rising and pulls out metering system, has obviously improved measurement efficient.
2) the utility model is simple in structure, and assembly and disassembly is convenient, is easy to carry, and the biological straw pulling force measurement test that the field is carried out has good adaptability.
3) in the utility model, clamp assemblies has adopted and pulls out the folder group and pull out coordinating of sleeve with rising, and has improved rectilinearity and the centering of pulling out in process, reflects effectively that more intuitively biological straw works the mechanical relationship between root system and soil when pulling out.
4) rise in the utility model and pull out assembly and adopt lever principle, adopt flexible wire ropes to rise around the mode of wire-crossing wheel and pull out biological straw, effectively reduce the vibrations that machine produces, also avoided artificial rising to pull out the moment of torsion change that may bring simultaneously, the data that make collection are true and accurate more.
5) difference that obtains of the utility model measuring method works that the biological straw pulling force of pulling out under angle is pulled out for follow-up biological straw rises, the design of harvest machinery provides reliable foundation.
6) in the utility model, the real-time process of measurement of biological straw pulling force adopts the graphical author language of LabVIEW to programme, can realize Real-time Collection, computing, demonstration and preservation to sensor output signal, improve convenience and the accuracy of Test Data Collecting.
7) in the utility model, the data acquisition of biological straw pulling force adopts NI USB-6009 type data collecting card to drive by usb bus, only need to be connected with notebook computer, need not external power supply, the power supply that has effectively solved outdoor measurement test provides problem, has reduced the complexity of test.
Description of drawings
Fig. 1 is the structural representation of the utility model device part.
Fig. 2 is the main TV structure schematic diagram of the utility model device part.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 works the structural representation that pulls out the sleeve part in the utility model.
Fig. 6 is the structured flowchart of stepper motor part in the utility model.
Fig. 7 is the structured flowchart of pulling force sensor part in the utility model.
Fig. 8 is the structural representation of the utility model middle clamp plate part.
wherein, 1-backing pin, 2-rise and pull out folder, 2.1-clamping plate, 2.2-locking hole, 3-rise and pull out sleeve, 3.1-mounting hole, 4-pulling force sensor, a 5-dead man, the 6-the second line wheel, 7-wire rope, 8-stepper motor, 9-First Line wheel, 10-bracing frame, 11-frame, 12-studdle seat, 13-upper locking nut, 14-data collecting card, 15-controller, 16-curved scale chi, 17-lower locking nut, 18-reducer casing, 19-computer, 20-chute, 21-lock-screw, the 22-the second line wheel installing plate, the 23-the second line wheel mounting hole, 24-clamping screw.
Embodiment
Below in conjunction with accompanying drawing and with cotton stalk be embodied as the example the utility model is described in further detail:
the motor-driven adjustable biological straw pulling force measurement mechanism of the utility model design, as shown in Fig. 1 ~ 8, it comprises frame 11, be arranged on bracing frame 10 and stepper motor 8 on frame 11, the reducer casing 18 that is connected with stepper motor 8 output shafts, the First Line wheel 9 that is connected with reducer casing 18, be arranged on the second line wheel 6 on bracing frame 10, be provided with and pulled out rising of folder 2 and pull out sleeve 3, play dead man 5, the wire rope 7 that one end is connected with a dead man 5, be arranged on the pulling force sensor 4 that pulls out between sleeve 3 and a dead man 5, the data collecting card 14 that is connected with pulling force sensor 4 signal output parts, the computer 19 that is connected with data collecting card 14, the controller 15 that is connected with stepper motor 8 control ends, wherein, rise and to pull out the both sides that sleeve 3 and First Line wheel 9 lay respectively at bracing frame 10, the other end of wire rope 7 is fixed on First Line wheel 9 after turning to by the second line wheel 6.
In technique scheme, also be provided with on frame 11 for having measured and pull out the curved scale chi 16 that 3, sleeve pulls out angle.
In technique scheme, also be provided with chute 20 and lock-screw 21 on frame 11, bracing frame 10 is positioned at chute 20 and is connected with frame 11 by lock-screw 21.In this structure, bracing frame 10 is realized being slidably matched by chute 20 and frame 11, can be used for having changed the angle of pulling out of pulling out sleeve 3.
In technique scheme, it also comprises four studdle seats 12 that all are threaded with frame 11, and upper locking nut 13 and lower locking nut 17 all have been threaded on each studdle seat 12.Upper locking nut 13 is positioned at the top of frame 11, and lower locking nut 17 is positioned at the bottom of frame 11.Said structure can be used for equally having changed and pull out rising of sleeve 3 and pull out angle.
In technique scheme, described reducer casing 18 is worm reduction box, and described First Line wheel 9 connects stepper motor 8 by worm reduction box.According to existing document record, the drawing resistance of cotton stalk is about the 1500N left and right, so the motor than high pulling torque need to be arranged, and this power is transient force, the time that exists is very short, in order can exactly it to be gathered out, added a worm reduction box that speed ratio is 1:50 at the output terminal of stepper motor 8, above-mentioned worm reduction box has been integrated in the housing of stepper motor 8.
In technique scheme, described data collecting card 14 is by USB(Universal Serial BUS, USB (universal serial bus)) data bus connection computer 19.Cotton stalk pulling force information in computer 19 receive data capture cards 14, and pulling force information is shown.
In technique scheme, work the two sides of pulling out sleeve 3 and also be provided with mounting hole 3.1, rise and to pull out folder 2 and comprise two clamping plate 2.1 and clamping screws 24 that are equipped with backing pin 1 and locking hole 2.2, the centre of every clamping plate 2.1 all is bent into circular-arc, two clamping plates 2.1 is relatively to layout, two backing pins 1 insert respectively in two mounting holes 3.1, and clamping screw 24 is positioned at locking hole 2.2.The utility model adopts 2 of coaxial arrangement to pull out folder 2, as shown in Figure 5, can make the test result of pulling force more accurate.The radius of the middle circular arc of described every clamping plate 2.1 is preferably 12mm, and the formed space of circular arc, two centres of two clamping plates 2.1 can hold the cotton stalk that the stem diameter is 15mm ~ 27mm, and the clamping effect of cotton stalk is better in this is interval.This device can be made rising of different-diameter scope and pull out folder, pulls out needs to satisfy rising of different-diameter scope biological straw.
In technique scheme, the top of bracing frame 10 is provided with the second line wheel installing plate 22, the second line wheel installing plates 22 and is provided with a plurality of the second line wheel mounting holes 23 along short transverse, and described the second line wheel 6 is connected with bracing frame 10 by the second line wheel mounting hole 23.By being arranged on, the second line wheel 6 also can realize having changed the angle of pulling out of pulling out sleeve 3 on the second different line wheel mounting holes 23.
In technique scheme, play dead man 5, pulling force sensor 4 and rise and pull out sleeve 3 and be positioned on same axis.Can guarantee the accuracy of measurement result like this.
In technique scheme, the model of pulling force sensor 4 is the CKY-1S type, and the model of data collecting card 14 is the NI-USB6009 type, and the model of stepper motor 8 is the 86HD0440 type.
A kind of biological straw pulling force measuring method of utilizing above-mentioned motor-driven adjustable biological straw pulling force measurement mechanism is measured as example with the pulling force of cotton stalk, comprises the steps:
Step 1: the cotton stalk stem has been put into pulled out folder 2 clampings, made stepper motor 8 rotations by controller 15, stepper motor 8 drives reducer casinges 18 and carries torsion to First Line wheel 9;
Step 2: First Line wheel 9 rotates and has driven successively dead man 5, pulling force sensor 4 and pulled out sleeve 3 by wire rope 7 and moves, thereby the cotton stalk stem is extracted;
Step 3: work the real-time value of thrust pull out sleeve 3 and to rise between dead man 5 and be transported to data collecting card 14 by pulling force sensor 4, record simultaneously the angle of pulling out of pulling out sleeve correspondence 3 this moment; Above-mentioned value of thrust is the pulling force of cotton stalk.
Step 4: pull out rising of sleeve 3 and pull out after angle changes by adjusting the relative position of bracing frame 10 on frame 11, having made, repeating step 1 ~ 3 obtains different real-time values of thrust that pull out under angle of many groups;
Step 5: to many groups of real-time values of thrust with rise and to pull out angle and carry out namely completing the measurement to the cotton stalk pulling force after data process.
Above-mentioned change of pulling out angle also can be adjusted by the distance of controlling between frame 11 and ground, and the distance between frame 11 and ground can realize the position on studdle seat 12 by adjustment upper locking nut 13 and lower locking nut 17.
In technique scheme, the torsion in step 1 is 1800 ~ 2200 N.This moment of torsion is the empirical value of previous literature record.
In technique scheme, described is pulled out rising of sleeve 3 and pulls out angle and be controlled at 20 ° ~ 70 °.This pulls out angle can carry out electrodeless adjusting.
In technique scheme, the rotating speed of stepper motor 8 is controlled at 0.5r/min ~ 4r/min.It is corresponding with it that to work the linear velocity scope of pulling out cotton stalk be 1.57mm/s ~ 12.56mm/s.
In technique scheme, the described data of step 5 are processed and can be got final product organizing real-time value of thrust more and rising to pull out to process in angle input computer 19.
Data in the utility model after above-mentioned processing provide reference accurately for the setting of pulling out parameter of closing mutually of cotton stalk machine.

Claims (7)

1. motor-driven adjustable biological straw pulling force measurement mechanism, it is characterized in that: it comprises frame (11), be arranged on bracing frame (10) and stepper motor (8) on frame (11), the reducer casing (18) that is connected with stepper motor (8) output shaft, the First Line wheel (9) that is connected with reducer casing (18), be arranged on the second line wheel (6) on bracing frame (10), be provided with and pulled out rising of folder (2) and pull out sleeve (3), play dead man (5), the wire rope (7) that one end is connected with a dead man (5), be arranged on the pulling force sensor (4) that pulls out between sleeve (3) and a dead man (5), the data collecting card (14) that is connected with pulling force sensor (4) signal output part, the computer (19) that is connected with data collecting card (14), the controller (15) that is connected with stepper motor (8) control end, wherein, described is pulled out the both sides that sleeve (3) and First Line wheel (9) lays respectively at bracing frame (10), and the other end of described wire rope (7) is taken turns by the second line and is fixed on First Line after (6) turn to and takes turns on (9).
2. motor-driven adjustable biological straw pulling force measurement mechanism according to claim 1 is characterized in that: also be provided with on described frame (11) for having measured and pull out sleeve (3) and rise and pull out the curved scale chi (16) of angle.
3. motor-driven adjustable biological straw pulling force measurement mechanism according to claim 1, it is characterized in that: also be provided with chute (20) and lock-screw (21) on described frame (11), support frame as described above (10) is positioned at chute (20) and is connected with frame (11) by lock-screw (21).
4. according to claim 1 and 2 or 3 described motor-driven adjustable biological straw pulling force measurement mechanisms, it is characterized in that: it also comprises four studdle seats (12) that all are threaded with frame (11), and upper locking nut (13) and lower locking nut (17) all have been threaded on described each studdle seat (12).
5. according to claim 1 and 2 or 3 described motor-driven adjustable biological straw pulling force measurement mechanisms, it is characterized in that: described two sides of pulling out sleeve (3) also are provided with mounting hole (3.1), described is pulled out folder (2) and comprises two clamping plate (2.1) and clamping screws (24) that are equipped with backing pin (1) and locking hole (2.2), the centre of described every clamping plate (2.1) all is bent into circular-arc, described two clamping plates (2.1) is relatively to layout, described two backing pins (1) insert respectively in two mounting holes (3.1), described clamping screw (24) is positioned at locking hole (2.2).
6. according to claim 1 and 2 or 3 described motor-driven adjustable biological straw pulling force measurement mechanisms, it is characterized in that: the top of support frame as described above (10) is provided with the second line wheel installing plate (22), described the second line wheel installing plate (22) is provided with a plurality of the second line wheel mounting holes (23) along short transverse, and described the second line wheel (6) is connected with bracing frame (10) by the second line wheel mounting hole (23).
7. according to claim 1 and 2 or 3 described motor-driven adjustable biological straw pulling force measurement mechanisms is characterized in that: described dead man (5), pulling force sensor (4) and rise and pull out sleeve (3) and be positioned on same axis.
CN 201320300499 2013-05-28 2013-05-28 Motor-driven adjustable biological straw pulling force measuring device Withdrawn - After Issue CN203274995U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320300499 CN203274995U (en) 2013-05-28 2013-05-28 Motor-driven adjustable biological straw pulling force measuring device

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103335765A (en) * 2013-05-28 2013-10-02 华中农业大学 Flexible and adjustable biological straw lifting force measuring apparatus and measuring method
CN108254116A (en) * 2018-02-23 2018-07-06 青岛海尔特种电冰柜有限公司 Freezer door body hinge torque-measuring apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103335765A (en) * 2013-05-28 2013-10-02 华中农业大学 Flexible and adjustable biological straw lifting force measuring apparatus and measuring method
CN103335765B (en) * 2013-05-28 2015-02-25 华中农业大学 Flexible and adjustable biological straw lifting force measuring apparatus and measuring method
CN108254116A (en) * 2018-02-23 2018-07-06 青岛海尔特种电冰柜有限公司 Freezer door body hinge torque-measuring apparatus

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AV01 Patent right actively abandoned

Granted publication date: 20131106

Effective date of abandoning: 20150225

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