CN207516224U - A kind of oscillatory type agricultural material compression property testing stand - Google Patents
A kind of oscillatory type agricultural material compression property testing stand Download PDFInfo
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- CN207516224U CN207516224U CN201721501619.6U CN201721501619U CN207516224U CN 207516224 U CN207516224 U CN 207516224U CN 201721501619 U CN201721501619 U CN 201721501619U CN 207516224 U CN207516224 U CN 207516224U
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Abstract
The utility model is related to a kind of oscillatory type agricultural material compression property testing stand, for measuring the rheological behavior that agricultural material in vibration processes is presented.This testing stand is closed type compressor structure, it is characterised in that is mainly made of compression set and supporting adn fixing device；Compression set mainly includes Numeric hydraulic cylinder, vibration pressure measuring unit, reciprocating piston vibrator, molding die, push plate and top plate；Supporting adn fixing device mainly includes metal rack, die fixture, hydraulic cylinder fixed block.The utility model is mainly used for simulating the compression process under agricultural material actual vibration operating mode, is convenient for the structure design of agricultural material compression job parameter optimization and the relevant technologies equipment.
Description
Technical field
The present invention relates to a kind of testing stands of oscillatory type agricultural material compression forming, are mainly used for agricultural material vibrocompression
Rheological behavior research in the process.
Background technology
Agricultural material is a kind of and people mainly including herbage material, crop material etc. as a kind of important renewable resource
The closely bound up living resources of class life, are not only the basis of development farming and animal husbandry, and are important energy substance.According to system
Meter, the whole world can generate more than 2,000,000,000 tons stalk resources every year, and only China is every year just more than 700,000,000 tons, and China's actual use amount
Less than 2.5 hundred million tons, the serious wasting of resources is caused.Original agricultural material quality is loose, the place of production disperses, inconvenient storage and transportation, solution
Certainly these problem the best ways are exactly to compress.The technology for compressing and forming of agricultural material can reduce the storage and transportation space of agricultural material
Accounting can effectively solve storage and the transportation problem of agricultural material resource, with good economic efficiency, environmental benefit and society
Benefit.But for a long time, the progress of agricultural material compression property is slow, seriously limits grinding for agricultural material compression equipment
System.
Nowadays, countries in the world recognize that fossil energy resource and the available quantity of native pasture Forage Germplasm Resources quite have one after another
Limit to realize sustainable economic development, all starts to increase the research dynamics to biomass resource.Loose agricultural material is compressed
The deep development that forming processes are conducive to material utilizes, such as molding stick（Block）Shape bio-fuel can effectively improve its calorific value；
In addition, animal feeding-stuff is made in agricultural fibrous materials after the processing such as crushing, compressing, ferment, consumption of the cattle and sheep to green grass is reduced, it can
Effectively alleviate grassland pressure, preserve the ecological environment.With the commercialization of agricultural material, Fast Compression packaging technique will be sent out rapidly
Exhibition；But the design of high density compressed packaging machinery needs further to be studied with manufacture, this all needs to compress dependent on agricultural material
Research on The Rheology.Compression property testing stand can effectively simulate the single briquetting compression forming process of agricultural material, accurately control pressure
The job parameters such as compression speed, compressing force, compression displacement in compression process provide one preferably for agricultural material Research on The Rheology
Platform means.
The major defect of existing compression test platform has：1st, it is only capable of providing stable compressing force, it is difficult to realize vibrocompression,
It differs greatly with actual job operating mode；2nd, the parameter detectings control accuracy such as compressing force, compression speed, compression displacement is low；3rd, body is big
Heaviness is not easy to build, and the degree of automation is low, and labor intensity is big.Therefore, existing agricultural material compression test equipment cannot expire
The scientific research of sufficient current agricultural material compression forming direction and device requirement, it would be highly desirable to develop a kind of high efficiency, intelligence, structure
It simplifies, and the agricultural material compression test platform of actual vibration compression working condition can be simulated.
Invention content
The purpose of the present invention is overcoming the shortcomings of in above-mentioned background technology, mechanical-electrical-hydraulic integration technology is merged, plays synthesis
Advantage provides the agricultural material compression property testing stand that a kind of compression speed is fast, detection is sensitive, applicability is high, simple in structure.
The technical solution adopted by the present invention is：A kind of oscillatory type agricultural material compression property testing stand, it is characterised in that：It should
Testing stand is made of compression set and supporting adn fixing device.
The compression set includes pre-numbers hydraulic cylinder, reciprocating piston vibrator, damping pressure measuring mechanism, shaping mould
Tool and postposition Numeric hydraulic cylinder；Pre-numbers hydraulic cylinder is as compression set power source, positioned at testing stand feed end, by pushing away
Bar, rubber punch export compressing force to molding die；Postposition Numeric hydraulic cylinder is located at testing stand discharge end, postposition digital hydraulic
Cylinder piston rod front end face is equipped with pressure sensor, and pressure sensor is connected with top plate rear end face boss by screw thread；Damping is surveyed
Press mechanism is wrapped up by metal shell, and equipped with adjusting nut, and damping pressure measuring mechanism rear end connects with pre-numbers hydraulic cylinder piston rod
It connects, front end is connect with reciprocating piston vibrator；Reciprocating piston vibrator front end is threadedly coupled with push rod.
The supporting adn fixing device includes test-bed, cushion block, die fixing device and L-type hydraulic cylinder fixed block；Mold
Fixed frame is made of two groups of mutually independent stents, and front-end bracket is fixed on molding die discharge end, and rear end support is fixed on into
Pattern has feed end.
In the above-mentioned technical solutions, the damping pressure measuring mechanism is by pull pressure sensor, adjusting nut, ball, bump leveller
It is formed with metal shell；Pull pressure sensor and bump leveller are wrapped up respectively by two independent metal shells, and the two end face is direct
Contact, metal shell connect by adjusting nut；Pull pressure sensor inside damping pressure measuring mechanism is located at pre-numbers hydraulic pressure
Cylinder side is threadedly coupled with pre-numbers hydraulic cylinder piston rod, and front end passes through the bump leveller and reciprocating piston that are wrapped up by ball
Vibrator is threadedly coupled.
In the above-mentioned technical solutions, the push plate is machined with round boss with top plate, and round boss surrounding, which is disposed with, to be added
Strengthening tendons；Top plate round boss is machined with internal thread hole, is threadedly coupled with postposition Numeric hydraulic cylinder push rod.
In the above-mentioned technical solutions, the push rod front end is machined with internal thread, connects with piston reciprocating type vibrator vibration head
It connects；Putting back-end is machined with blind hole, is docked with rubber punch.
In the above-mentioned technical solutions, the molding die is supported by the die fixing device of two groups of independence, and rubber antiskid pad leads to
It crosses 3 groups of symmetrical screws and is fixed on metallic support upper surface, three collectively constitutes die fixing device；Die fixing device upper surface adds
Work has U-lag, and front-end bracket upper surface is step surface, and back-end metal rack upper surface is plane, and the two spacing is adjustable.
The beneficial effects of the invention are as follows：The present invention is conducive to agricultural using monoblock type square dies, molding rectangular briquetting
Material stores and transport；Die fixing device is combined type, and front-end bracket upper surface is step surface, has been laid with rubber antiskid pad,
U-lag is machined simultaneously, is suitable for mold of different shapes；Push plate is front and rear during material compression vibrates, and is remarkably improved into
Type presses fast stress relaxation rate.The configuration of the present invention is simple, and material compression process automation degree is high, easy to operate, compression
Shaping efficiency is high, and finished product stability is good, can meet efficient Fast Compression test requirements document, and realizes compressing force in compression process, pressure
Monitoring and the electrodeless adjustment in real time of the job parameters such as contracting speed, compression displacement.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is the overlooking the structure diagram of the present invention.
Fig. 3 is the dimensional structure diagram of the present invention.
Fig. 4-1 is the half section structure diagram of damping pressure measuring mechanism in the present invention.
Fig. 4-2 is the dimensional structure diagram of bump leveller in the present invention.
Fig. 5 is the dimensional structure diagram of top plate in the present invention.
Fig. 6 is the dimensional structure diagram of push rod in the present invention.
Fig. 7 is the dimensional structure diagram of die fixing device in the present invention.
In figure：1st, pre-numbers hydraulic cylinder, 2, damping pressure measuring mechanism, 3, reciprocating piston vibrator, 4, push rod, 5, rubber
Punch, 6, push plate, 7, molding die, 8, top plate, 9, pressure sensor, 10, piston rod, 11, postposition Numeric hydraulic cylinder, 12, examination
Test rack, 13, bolt, 14, cushion block, 15, console, 16, touch screen；17th, die fixing device, 18, L-type hydraulic cylinder fixed block.
Specific embodiment
Below in conjunction with Figure of description, the invention will be further described, but the invention is not limited in following embodiments.
As shown in Figure 1, 2, 3, a kind of oscillatory type agricultural material compression property testing stand, it is characterised in that：The testing stand by
Compression set and supporting adn fixing device composition.
As shown in Figure 1, 2, 3, the compression set includes pre-numbers hydraulic cylinder 1, reciprocating piston vibrator 3, damping
Pressure measuring mechanism 2, molding die 7 and postposition Numeric hydraulic cylinder 11；Two groups of Numeric hydraulic cylinders are provided with limit switch, can pass
Position limitation protection is carried out to Numeric hydraulic cylinder when sensor fails；Power source of the pre-numbers hydraulic cylinder 1 as compression test platform,
Positioned at testing stand feed end, pass sequentially through damping pressure measuring mechanism 2, reciprocating piston vibrator 3, push rod 4, rubber punch 5 and push away
Plate 6 exports compressing force to molding die 7；The postposition Numeric hydraulic cylinder 11 is located at testing stand discharge end, postposition digital hydraulic
11 piston rod front end face of cylinder is equipped with pressure sensor 9, and pressure sensor 9 is connected with 8 rear end face boss of top plate by screw thread；Institute
It states 2 rear end pull pressure sensor 2-1 of damping pressure measuring mechanism to be in direct contact with 1 piston rod front end face of pre-numbers hydraulic cylinder, front end
It is connect by the bump leveller 2-4 wrapped up by ball 2-3 with reciprocating piston vibrator 3, pull pressure sensor 2-1 and bump leveller 2-
4 are wrapped up respectively by metal shell 2-5, and two metal shell 2-5 are connected by adjusting nut 2-2；Before the reciprocating piston vibrator 3
End is threadedly coupled with push rod 4.
As shown in Figure 1, 2, 3, the supporting adn fixing device includes test-bed 12, cushion block 14, die fixing device 17 and L-type
Hydraulic cylinder fixed block 18；The die fixing device 17 is made of two groups of mutually independent stents；Front-end bracket is fixed on shaping mould
Have 7 discharge ends, rear end support is fixed on 7 feed end of molding die, and the two spacing is adjustable, be suitable for different length and shape into
Pattern tool 7.
As shown in Fig. 4-1,4-2, the damping pressure measuring mechanism 2 is by pull pressure sensor 2-1, adjusting nut 2-2, ball 2-
3rd, bump leveller 2-4 and metal shell 2-5 compositions, may customize or self-control obtains；Pull pressure sensor 2-1 and bump leveller 2-4 difference
It is wrapped up by two independent metal shell 2-5, the two end face is in direct contact, and two metal shell 2-5 connect by adjusting nut 2-2
It connects；Pull pressure sensor 2-1 is located at 1 side of pre-numbers hydraulic cylinder in damping pressure measuring mechanism 2, with pre-numbers hydraulic cylinder work 1
Stopper rod is threadedly coupled, for monitoring the gross thrust that pre-numbers hydraulic cylinder 1 generates in compression process；2 front end of damping pressure measuring mechanism
By the bump leveller 2-4 and reciprocating piston vibrator wrapped up by ball 2-3, it is reciprocal for absorbing that bump leveller 3 is threadedly coupled 2-4
It is vibrated caused by formula piston vibration device 3, and transmits compressing force, the bump leveller 2-4 is conventional structure, and buyable obtains, no
It describes in detail.
As shown in figure 5,8 end face of top plate is machined with round boss, boss is machined with internal thread hole, and surrounding is arranged
There is reinforcing rib, its rigidity is improved while 8 thickness of top plate can be reduced；Top plate 8 and 11 push rod forefront pressure of postposition Numeric hydraulic cylinder
Sensor 9 is threadedly coupled, can indirect monitoring material compression process the pressure loss.
As shown in fig. 6,4 front end of push rod is machined with internal thread, it connect, uses with 3 vibration head of reciprocating piston vibrator
In the stability for improving testing stand vibrocompression process；4 front end of push rod is machined with blind hole, with rubber punch 5 using interference fit
Mode is directly docked, and for push rod during buffer compression 4 and the impact force of push plate 6, reduces noise.
As shown in fig. 7, the die fixing device of two groups of independence is by rubber antiskid pad 17-1, fixing screws 17-2 and metal branch
Frame 17-3 is formed；Rubber antiskid pad 17-1 is fixed on metallic support 17-3 upper surfaces by 3 groups of symmetrical screw 17-2, for preventing
Only molding die 7 shifts；17 upper surface of die fixing device is machined with U-lag, and front-end bracket upper surface is step surface, is used for
Molding die 7 is prevented to generate displacement in material compression direction；Rear end support upper surface is plane.
Lower mask body introduces the course of work of the present invention：During material compression, reciprocating piston vibrator 3 drives push rod
4, push push plate 6 is front and rear to vibrate, to significantly improve material forming efficiency and Forming press stress relaxation rate and stability.Postposition
Digital hydraulic cylinder piston rod travels forward, and top plate 8 is pushed into mold cavity discharge port, feeds agricultural material to be compressed；It is preposition
While Numeric hydraulic cylinder 1 is travelled forward by reciprocating piston vibrator 3 and the promotion push plate 6 of push rod 4, shake with reciprocating piston
The push rod 4 of actuator piston bar connection pushes high-frequency vibration before and after push plate 6, and agricultural material is in pre-numbers hydraulic cylinder 1 and reciprocating
The briquetting with definite shape and density is compressed under the action of piston vibration device 3；The work of pre-numbers hydraulic cylinder can be set
The job parameters such as stopper rod forward speed, molding die cross sectional shape and area, reciprocating piston vibrator vibration frequency carry out phase
Mutually cooperation so that the agricultural material rapid shaping of shaping mould type intracavitary, stress relaxation rate are remarkably improved；Agricultural
During material compression, compression speed under different tests parameter, compressing force, compression displacement can be measured in real time by each sensor
Etc. test datas, be transmitted to programmable controller and touch screen after signal adapter is handled；Conversely, programmable controller can lead to
Output will be instructed to Numeric hydraulic cylinder by crossing signal adapter, to realize the closed-loop control of compaction control system.
Claims (5)
1. a kind of oscillatory type agricultural material compression property testing stand, it is characterised in that：The testing stand is solid by compression set and support
Determine device composition；The compression set includes pre-numbers hydraulic cylinder（1）, reciprocating piston vibrator（3）, damping pressure measuring machine
Structure（2）, molding die（7）With postposition Numeric hydraulic cylinder（11）；Pre-numbers hydraulic cylinder is as compression set power source, positioned at examination
Platform feed end is tested, passes through push rod（4）, rubber punch（5）Compressing force is exported to molding die；Postposition Numeric hydraulic cylinder is located at examination
Test platform discharge end, postposition digital hydraulic cylinder piston rod（10）Front end face is equipped with pressure sensor（9）, pressure sensor and top plate
（8）Rear end face boss is connected by screw thread；Damping pressure measuring mechanism is by metal shell（2-5）Package, and equipped with adjusting nut（2-
2）, damping pressure measuring mechanism rear end connect with pre-numbers hydraulic cylinder piston rod, and front end is connect with reciprocating piston vibrator；Back and forth
Formula piston vibration device front end is threadedly coupled with push rod；The supporting adn fixing device includes test-bed（12）, cushion block（14）, mould
Has fixed frame（17）With L-type hydraulic cylinder fixed block（18）；Die fixing device is made of two groups of mutually independent stents, front-end bracket
It is fixed on molding die（7）Discharge end, rear end support are fixed on molding die feed end.
2. a kind of oscillatory type agricultural material compression property testing stand according to claim 1, it is characterised in that：Damping pressure measurement
Mechanism（2）By pull pressure sensor（2-1）, adjusting nut（2-2）, ball（2-3）, bump leveller（2-4）And metal shell（2-5）
Composition；Pull pressure sensor and bump leveller are wrapped up respectively by two independent metal shells, and the two end face is in direct contact, outside metal
Shell connects by adjusting nut；Pull pressure sensor inside damping pressure measuring mechanism is located at pre-numbers hydraulic cylinder（1）Side, with
Pre-numbers hydraulic cylinder piston rod is threadedly coupled, and front end passes through the bump leveller that is wrapped up by ball and reciprocating piston vibrator（3）
It is threadedly coupled.
3. a kind of oscillatory type agricultural material compression property testing stand according to claim 1, it is characterised in that：Push plate（6）
With top plate（8）Round boss is machined with, round boss surrounding is disposed with reinforcing rib；Top plate round boss is machined with internal thread
Hole, with postposition Numeric hydraulic cylinder（11）Push rod is threadedly coupled.
4. a kind of oscillatory type agricultural material compression property testing stand according to claim 1, it is characterised in that：Push rod（4）
Front end is machined with internal thread, with reciprocating piston vibrator（3）Vibration head connects；Putting back-end is machined with blind hole, is rushed with rubber
Head（5）Docking.
5. a kind of oscillatory type agricultural material compression property testing stand according to claim 1, it is characterised in that：Molding die
（7）By the die fixing device of two groups of independence（17）Support, rubber antiskid pad（17-1）Pass through 3 groups of symmetrical screws（17-2）It is fixed
In metallic support（17-3）Upper surface, three collectively constitute die fixing device；Die fixing device upper surface is machined with U-lag, preceding
End rack upper surface is step surface, and back-end metal rack upper surface is plane, and the two spacing is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501619.6U CN207516224U (en) | 2017-11-13 | 2017-11-13 | A kind of oscillatory type agricultural material compression property testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501619.6U CN207516224U (en) | 2017-11-13 | 2017-11-13 | A kind of oscillatory type agricultural material compression property testing stand |
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| CN207516224U true CN207516224U (en) | 2018-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136946A (en) * | 2020-01-03 | 2020-05-12 | 中国农业大学 | Rebound reduction method for compression forming block of multi-stage rolling straw forming machine |
| CN113447355A (en) * | 2021-07-03 | 2021-09-28 | 石河子大学 | Method for detecting internal mechanical behavior in material compression process |
-
2017
- 2017-11-13 CN CN201721501619.6U patent/CN207516224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136946A (en) * | 2020-01-03 | 2020-05-12 | 中国农业大学 | Rebound reduction method for compression forming block of multi-stage rolling straw forming machine |
| CN113447355A (en) * | 2021-07-03 | 2021-09-28 | 石河子大学 | Method for detecting internal mechanical behavior in material compression process |
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