CN105115803B - A kind of soil sample is electronic to hit actual load and sets and its test method - Google Patents
A kind of soil sample is electronic to hit actual load and sets and its test method Download PDFInfo
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- CN105115803B CN105115803B CN201510615405.0A CN201510615405A CN105115803B CN 105115803 B CN105115803 B CN 105115803B CN 201510615405 A CN201510615405 A CN 201510615405A CN 105115803 B CN105115803 B CN 105115803B
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Abstract
The invention discloses a kind of electronic actual loads of hitting of soil sample to set and its test method, including pedestal, workbench, rack and hit real bucket, and feed mechanism, including charging hopper, feed appliance, scale hooper, weighing sensor, chute feeder and feeding motor, feed appliance is located at the lower section of charging hopper, and scale hooper is located at the lower section of feed appliance, and the input end of chute feeder is connect with scale hooper, the outlet end of chute feeder is located at the top for hitting real bucket, and feeding motor is connect with feed appliance；Hit real machine structure, including hammer, displacement sensor and driving mechanism.In the present invention feed mechanism according to calculating plus soil amount complete the weighing of soil sample, feed, after the completion of reality to be hit, displacement sensor measures verification, compared to the prior art, substantially reduce the labor intensity of test clerk, soil sample weigh the accuracy for ensureing to feed every time, to ensure every time with the accuracy of soil amount, the final height for ensureing soil sample is more than the height for hitting real bucket and without departing from hitting real bucket 5mm.
Description
Technical field
The invention belongs to earthwork test Instrument technical fields, and in particular to a kind of soil sample is electronic to hit actual load and set and its experiment side
Method.
Background technology
Compaction test apparatus for the reclamation works construction such as highway, water power water conservancy, railway, municipal administration, measure the water content of soil with do it is close
The relationship of degree, with the optimum moisture content for determining soil and corresponding maximum dry density.So as to understanding soil compaction performance, as building site
The foundation of soil compaction control.
《Highway earthwork test rule》(JTG E40-2007) defines the solid step that hits that Compaction is tested
Example)：Real bucket will be hit to be placed on hard ground, a thin layer vaseline is smeared on bucket wall, and place paraffin paper or plastics on bucket bottom
Film.It takes the soil sample prepared to divide 3~5 times to pour into bucket.When by three-layer process, (its amount should make after hitting reality about 800~900g every time
Sample be equal to or slightly higher than high 1/3 of bucket)；When by five layers of method, (its amount should make to hit the sample after reality about 400~500g every time
Be equal to or slightly higher than bucket it is high 1/5).Flattened faces, and slightly compress, then hitting for first layer soil is carried out by the defined number that hits
Real, hitting real-time hammer freely should vertically fall, and hammer mark must be uniformly distributed in soil sample face, first layer hit it is real it is complete after, by sample layer
Face " plucking " and then it is reloaded into sleeve, repeat that the above method carries out remaining each layer soil hits reality.After hitting reality, sample should not be greater than bucket
Top surface 5mm.
When carrying out Compaction experiment using traditional electric compaction device, due to manually adding soil sample, it is difficult to accomplish by three points
Its amount should make to hit the sample after reality and be equal to or slightly higher than high 1/3 of bucket when method, should make to hit the sample after reality by its amount when five layers of method
Be equal to or slightly higher than bucket it is high 1/5.It even will appear specimen height after hitting reality and be less than and hit real bucket height or more than hitting real bucket and 5mm
The sum of, existing way is, every layer hit it is real finish, measure the height after hitting reality using ruler, be determined by calculation next layer it is native
Add native amount, then weighs the soil of corrresponding quality and real bucket is hit in addition, experiment process is cumbersome, inefficiency.
Invention content
In order to solve the above technical problem, the present invention provides a kind of electronic actual loads of hitting of soil sample to set and its test method.
In order to achieve the above object, technical scheme is as follows：
A kind of electronic actual load of hitting of soil sample of present invention offer is set, including：
Pedestal；
Workbench is set on pedestal；
Real bucket is hit, is set on workbench；
Rack is set on pedestal and is located at workbench side；
Feed mechanism, including charging hopper, feed appliance, scale hooper, weighing sensor, chute feeder and feeding motor, charging hopper
It is set in rack, feed appliance is set to the lower section in rack and positioned at charging hopper, and scale hooper is set in rack and is located at and send
The lower section of glassware, weighing sensor are set on scale hooper, and the input end and scale hooper of chute feeder connect and between scale hooper
It is provided with blanking cylinder, the outlet end of chute feeder is located at the top for hitting real bucket, and feeding motor is connect with feed appliance；
Real machine structure is hit, including hammer, displacement sensor and driving mechanism, driving mechanism are set in rack, hammer and drive
Motivation structure connects, and displacement sensor is set in rack and hits the height of soil sample in real bucket positioned at the top induction for hitting real bucket.
Feed mechanism is measured according to after calculating plus soil in the present invention completes weighing, feeding for soil sample, and real machine structure to be hit hits reality
After the completion, the height of soil sample in real bucket is hit in displacement sensor induction, is verified to hitting the soil sample height after reality every time, compared to
The prior art substantially reduces the labor intensity of test clerk, and the accuracy for ensureing to feed every time of weighing is carried out to soil sample,
To ensure every time with the accuracy of soil amount, the final height for ensureing soil sample is more than the height for hitting real bucket and without departing from hitting real bucket
5mm。
Based on the above technical solution, following improvement can also be done：
As a preferred option, the structure that prominent surrounding tilts down centered on above-mentioned workbench, the surrounding of workbench
It is provided with flexible connector, hits that real bucket is set on the center projecting point of workbench and its outside bucket wall and flexible connector connect
It connects.Wherein, flexible connector selects tower spring.
Using the above preferred scheme, during feed appliance charging, the meeting when hitting the soil sample in real bucket and being unevenly distributed
Deflection is generated, can be rebounded again by repeatedly so that soil sample is hitting in real bucket distribution after deflection under the elasticity of flexible connector
It is even, ensure that soil sample whole height is consistent；Meanwhile hitting in real time since flexible connector has elasticity, it avoids hitting real bucket and workbench
Between generate friction, collision, hit the service life of real bucket to extend.
As a preferred option, above-mentioned feed appliance is feeding screw, the input end of feeding screw, outlet end difference
The both ends and input end for being set to its length direction are obliquely installed higher than outlet end.
Using the above preferred scheme, feeding screw is obliquely installed, and is convenient for the output of soil sample, is also avoided input end material
It blocks.
As a preferred option, it is additionally provided with demoulding mechanism on above-mentioned pedestal.
Using the above preferred scheme, increase demoulding mechanism, depanning is carried out to the soil sample of completion, it is more convenient.
The present invention also provides a kind of electronic test methods hit actual load and set of soil sample, include the following steps：
S1, the soil sample of required total amount is fully enclosed charging hopper, then feed warehouse discharging, and feeding motor drives feed appliance will
Soil sample is sent by chute feeder to scale hooper after squeezing；
S2, weighing sensor incude the weight of soil sample until the arrival of its measured value sends out for the first time plus after native amount and stops letter
Number, it closes charging hopper, stop feeding motor, then driving mechanism driving hammer carries out soil sample to hit reality downwards, hits after the completion of reality
Displacement sensor incudes the height of soil sample；
S3, repeat the above steps S1 and S2, until the soil sample of level needed for completing hits reality, every time plus the quality of soil amount is pressed
It is calculated according to following formula：
mnRequired sample mass (g) in real time is hit for n-th；
hiIt is hit after reality highly (mm) for i-th layer of soil；
H is to hit real bucket height (mm)；
M is to hit real total number of plies.
Wherein, it according to three-layer process, then chooses for the first time plus soil amount is 850g, according to five layers of method, then choose for the first time
It is 450g to add soil amount.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the present invention.
Fig. 2 is the side view of one embodiment of the present invention.
Wherein, 1. rack, 2. moving drive mechanisms, 3. pedestals, 4. beat bar, and 5. hit real driving mechanism, and 6. tups, 7. hit reality
Bucket, 8. workbench, 9. charging hoppers, 10. feed appliances, 11. holders, 12. feeding motors, 13. blanking cylinders, 14. chute feeders, 15.
Weighing sensor, 16. scale hoopers, 17. displacement sensors.
Specific implementation mode
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
In order to reach the purpose of the present invention, as shown in Figure 1 to Figure 2, provided in the one of which embodiment of the present invention
A kind of electronic actual load of hitting of soil sample is set, including：
Pedestal 3；
Workbench 8 is set on pedestal 3；
Real bucket 7 is hit, is set on workbench 8；
Rack 1 is set on pedestal 3 and is located at 8 side of workbench；
Feed mechanism, including charging hopper 9, feed appliance 10, scale hooper 16, weighing sensor 15, chute feeder 14 and feeding electricity
Machine 12, charging hopper 9 are set in rack 1, and feed appliance 10 is set to the lower section in rack 1 and positioned at charging hopper 9, and scale hooper 16 is set
It is placed in the lower section in rack 1 and positioned at feed appliance 10, weighing sensor is set on scale hooper, the input end and title of chute feeder 14
Batch box 16 connects and is provided between scale hooper 16 blanking cylinder 13, and the outlet end of chute feeder 14 is located at the top for hitting real bucket 7,
Feeding motor 12 is connect with feed appliance 10；
Hit real machine structure, including hammer, displacement sensor 17 and driving mechanism, driving mechanism are set in rack 1, hammer with
Driving mechanism connects, and displacement sensor 17 is set in rack 1 and positioned at the top for hitting real bucket 7.
In present embodiment feed mechanism according to calculating plus soil amount complete the weighing of soil sample, feed, real machine structure to be hit is hit
After the completion of reality, displacement sensor 17, which incudes, hits the height of soil sample in real bucket 7, is verified to hitting the soil sample height after reality every time,
Compared to the prior art, the labor intensity for substantially reducing test clerk carries out soil sample to weigh what guarantee fed every time
Accuracy, to ensure every time with the accuracy of soil amount, the final height for ensureing soil sample be more than the height for hitting real bucket and without departing from
Hit real bucket 5mm.
Wherein, hammer includes beating bar 4 and tup 6, and driving mechanism includes moving drive mechanism 2 and hits real driving mechanism 5, beats
Bar 4, which is set to, to be hit in real driving mechanism 2, and real driving mechanism 2 is hit in the drive of moving drive mechanism 2 and hammer moves integrally.
In order to further optimize the implementation result of the present invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, the surrounding setting of the structure that prominent surrounding tilts down centered on above-mentioned workbench 8, workbench 8 is flexible
Connector, hit real bucket 7 be set on the center projecting point of workbench 8 and its outside bucket wall connect with flexible connector.Wherein, bullet
Property connector select tower spring.
Using the above preferred scheme, during feed appliance 10 feeds, when hitting the soil sample in real bucket 7 and being unevenly distributed
Deflection is will produce, can be rebounded again by repeatedly so that soil sample is hitting distribution in real bucket 7 after deflection under the elasticity of flexible connector
Uniformly, ensure that soil sample whole height is consistent；Meanwhile hitting in real time since flexible connector has elasticity, it avoids hitting real bucket 7 and work
Friction, collision are generated between platform 8, to extend the service life for hitting real bucket 7.
In order to further optimize the implementation result of the present invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, above-mentioned feed appliance 10 is feeding screw, and the input end of feeding screw, outlet end are respectively arranged at its length
The both ends and input end for spending direction are obliquely installed higher than outlet end.
Using the above preferred scheme, feeding screw is obliquely installed, and is convenient for the output of soil sample, is also avoided input end material
It blocks.
In order to further optimize the implementation result of the present invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, demoulding mechanism (not shown) is additionally provided on above-mentioned pedestal.
Using the above preferred scheme, increase demoulding mechanism, depanning is carried out to the soil sample of completion, it is more convenient.
Implementation result in order to further optimize the present invention also provides one in another embodiment of the invention
The kind electronic test method hit actual load and set of soil sample, includes the following steps：
S1, the soil sample of required total amount is fully enclosed charging hopper, then feed warehouse discharging, and feeding motor drives feed appliance will
Soil sample is sent by chute feeder to scale hooper after squeezing；
S2, weighing sensor incude the weight of soil sample until after its measured value arrival 850g, send out stop signal, close dress
Feed bin stops feeding motor, and then driving mechanism driving hammer carries out soil sample to hit reality downwards, hits displacement sensor after the completion of reality
Incude the height of soil sample；
S3, repeat the above steps S1 and S2, until the completion second layer, third layer soil sample hit reality, adds the matter of soil amount every time
Amount is calculated according to following formula：
mnRequired sample mass (g) in real time is hit for n-th；
hiIt is hit after reality highly (mm) for i-th layer of soil；
H is to hit real bucket height (mm)；
M is to hit real total number of plies.
Implementation result in order to further optimize the present invention also provides one in another embodiment of the invention
The kind electronic test method hit actual load and set of soil sample, includes the following steps：
S1, the soil sample of required total amount is fully enclosed charging hopper, then feed warehouse discharging, and feeding motor drives feed appliance will
Soil sample is sent by chute feeder to scale hooper after squeezing；
S2, weighing sensor incude the weight of soil sample until after its measured value arrival 450g, send out stop signal, close dress
Feed bin stops feeding motor, and then driving mechanism driving hammer carries out soil sample to hit reality downwards, hits displacement sensor after the completion of reality
Incude the height of soil sample；
S3, repeat the above steps S1 and S2, until complete the second layer, third layer, the 4th layer and layer 5 soil sample hit reality,
Every time plus the quality of soil amount is calculated according to following formula：
mnRequired sample mass (g) in real time is hit for n-th；
hiIt is hit after reality highly (mm) for i-th layer of soil；
H is to hit real bucket height (mm)；
M is to hit real total number of plies.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (7)
1. a kind of electronic test method hit actual load and set of soil sample, includes the following steps：
S1, the soil sample of required total amount is fully enclosed charging hopper, then feed warehouse discharging, and feeding motor drives feed appliance by soil sample
It is sent to scale hooper by chute feeder after extruding；
S2, weighing sensor incude the weight of soil sample until after its measured value arrival first time plus native amount, send out stop signal, pass
It closes charging hopper, stop feeding motor, then driving mechanism driving hammer carries out soil sample to hit reality downwards, hits displacement biography after the completion of reality
Sensor incudes the height of soil sample；
S3, repeat the above steps S1 and S2, until the soil sample of level needed for completing hits reality, every time plus the quality of soil amount according to
Lower formula is calculated：
mnRequired sample mass (g) in real time is hit for n-th；
hiIt is hit after reality highly (mm) for i-th layer of soil；
H is to hit real bucket height (mm)；
M is to hit real total number of plies.
2. the electronic test method hit actual load and set of soil sample according to claim 1, which is characterized in that if in the step S2
It using three-layer process, then chooses for the first time plus soil amount is 850g, according to five layers of method, then choose for the first time plus soil amount is 450g.
3. a kind of electronic actual load of hitting of soil sample is set, the electronic experiment side hit actual load and set of the soil sample described in the claims 1 is used
Method, which is characterized in that including：
Pedestal；
Workbench is set on the pedestal；
Real bucket is hit, is set on the workbench；
Rack is set on the pedestal and is located at the workbench side；
Feed mechanism, including charging hopper, feed appliance, scale hooper, weighing sensor, chute feeder and feeding motor, the charging hopper
It is set in the rack, the feed appliance is set to the lower section in the rack and positioned at the charging hopper, the scale hooper
It is set to the lower section in the rack and positioned at the feed appliance, the weighing sensor is set on the scale hooper, described
The input end of chute feeder and the scale hooper connect and are provided with blanking cylinder between the scale hooper, and the chute feeder goes out
Mouth end is located at the top for hitting real bucket, and the feeding motor is connect with the feed appliance；
Real machine structure, including hammer, displacement sensor and driving mechanism are hit, the driving mechanism is set in the rack, described
Hammer is connect with the driving mechanism, and institute's displacement sensors are set in the rack and positioned at the top sense for hitting real bucket
The height of soil sample in real bucket should be hit.
4. the electronic actual load of hitting of soil sample according to claim 3 is set, which is characterized in that prominent surrounding centered on the workbench
The surrounding of the structure tilted down, the workbench is provided with flexible connector, the center hit real bucket and be set to workbench
On projecting point and its outside bucket wall is connect with flexible connector.
5. the electronic actual load of hitting of soil sample according to claim 4 is set, which is characterized in that the flexible connector is tower spring.
6. the electronic actual load of hitting of soil sample according to claim 3 is set, which is characterized in that the feed appliance is feeding screw,
The input end of the feeding screw, outlet end are respectively arranged at the both ends of its length direction and input end is tilted higher than outlet end
Setting.
7. the electronic actual load of hitting of soil sample according to claim 3 is set, which is characterized in that be additionally provided with ingot stripper on the pedestal
Structure.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108414320B (en) * | 2018-03-29 | 2020-12-22 | 西京学院 | Triaxial test disturbed soil sample automatic compaction device and control system thereof |
| CN108982260A (en) * | 2018-08-02 | 2018-12-11 | 徐斌 | Integrated full automatic compaction test apparatus |
| CN112146961A (en) * | 2020-10-16 | 2020-12-29 | 中铁第一勘察设计院集团有限公司 | Semi-rigid base material tubular cracking test annular test piece compaction forming device |
| CN114112603B (en) * | 2022-01-28 | 2022-04-19 | 南京大学 | Preparation system and method for simulating rammed soil sample at certain depth |
| CN114674737B (en) * | 2022-04-02 | 2023-06-16 | 西南交通大学 | Roadbed filler compaction characteristic analysis device and method thereof |
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| CN205015207U (en) * | 2015-09-24 | 2016-02-03 | 昆山市交通工程试验检测中心 | Soil sample is electronic hits real device |
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| JP2007163189A (en) * | 2005-12-09 | 2007-06-28 | Yamaha Motor Engineering Kk | Weighing method, weighing device and preprocessing apparatus for sample analysis |
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| CN203965430U (en) * | 2014-07-02 | 2014-11-26 | 青海省建筑建材科学研究院 | A kind of Multi-function electric ramming instrument |
| CN204154555U (en) * | 2014-08-22 | 2015-02-11 | 中国地质科学院水文地质环境地质研究所 | Geotechnique's sample preparation device |
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