CN210626168U - Soil sample preparation device - Google Patents
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- CN210626168U CN210626168U CN201921307694.8U CN201921307694U CN210626168U CN 210626168 U CN210626168 U CN 210626168U CN 201921307694 U CN201921307694 U CN 201921307694U CN 210626168 U CN210626168 U CN 210626168U
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Abstract
The utility model relates to the technical field of soil property testing equipment, and discloses a soil sample preparation device, which comprises a base, an actuating mechanism, a sample pushing mechanism and a blanking mechanism which are sequentially arranged on the base along the length direction of the base, and a sample cutting mechanism which is vertically arranged on the blanking mechanism; the sample pushing mechanism comprises a fixed frame for fixing the sample cylinder and a thrust plate for pushing a soil sample in the sample cylinder; the blanking mechanism comprises a blanking block, and a blanking groove is formed in the blanking block along the length direction of the base; the actuating mechanism is connected with the thrust plate to push the soil sample out of the charging chute; the sample cutting mechanism comprises a cutter which can move along the radial direction of the charging chute so as to cut the soil sample falling into the charging chute. This soil sample preparation facilities collects soil sampling, soil sample cutting in an organic whole, and the sampling method is simple, consuming time weak point, cutting soil sample position accuracy, has the characteristics that the low price is strong with the practicality, is particularly useful for the sample and the cutting to frozen soil sample.
Description
Technical Field
The utility model relates to a soil property test equipment technical field especially relates to a soil sample preparation facilities.
Background
The frozen soil is widely distributed in China, the sum of seasonal frozen soil and permafrost occupies 2/3 of the national soil area of China, and the engineering construction in frozen soil areas is seriously influenced by the frozen soil, so that the method has important significance for the research on the physical and mechanical properties of the frozen soil. The frozen soil is different from normal-temperature soil, and is characterized in that water is frozen in a soil body, and is mostly frozen in situ in coarse-grained soil, so that slight frost heaving occurs; the phenomena of underground water suction, ice segregation formation, freezing edge growth and the like can occur in fine-grained soil, so that the soil body is greatly frost-heaving deformed, and the land with the large frost-heaving deformation is easy to greatly thaw in spring due to more ice gathering amount, thereby seriously affecting the safety of roadbeds and buildings in frozen soil areas.
One of the reasons why frost heaving occurs is that the volume of frozen ice formed by water in soil increases by 9%, but the amount of frost heaving is not large; the second reason is that the ground water is pumped in the freezing process of the soil body, the segregation of ice occurs in the soil body, and then the freezing edge begins to grow, so that larger frost heaving deformation is generated. In the process, water migrates in the soil body, so that different parts in the soil have different water contents, and the quantitative test of the water contents has important significance for analyzing the frost heaving deformation of the soil body and explaining the frost heaving mechanism.
At present, the following methods are used for testing the water content in frozen soil: the method 1 is an in-situ test carried out on site, and is mostly carried out by adopting a method of embedding a moisture sensor; method 2 was tested by the indoor frost heave test. The above methods have advantages and disadvantages, as discussed below:
firstly, in terms of cost, the method for embedding the moisture sensor is high in cost, the market price of one sensor is about 5000 yuan, and a plurality of sensors are required to be embedded to acquire multipoint data, so that the cost is high; and the aluminum box, the oven and the balance used in the indoor frost heaving test process are the most common instruments in the laboratory, and the test is convenient. Secondly, supposing that the moisture sensors are used for testing, the field test is more consistent with the actual temperature condition from the field test of a test field and the indoor model test, but the test result is more random, the moisture sensors are less maintained in the long-term observation process after being buried in the field in the test process, and the damage rate of the sensors is higher due to the long time of natural freezing, so that all data can not be acquired; although the indoor testing method is simplified to a certain extent, the testing condition is stable, the sample is small, the testing time is shortened, the damage rate of the sensor is low, and the quantity of effective data is large.
Therefore, in frozen soil area tests for many years, indoor frost heaving tests are adopted for moisture migration researches except for large in-situ tests specially provided with observation fields. However, in the test process, a common problem is that the soil sample after the frost heaving test is finished is very firmly bonded with the wall of the sample tube due to the freezing action, if the sample tube adopts a form of opening the membrane or three valves, the sampling is relatively simple, but the sample tube of the opening membrane or three-plate membrane is easy to have water seepage phenomenon in the process of freezing and water replenishing of the soil sample so as to influence the test result; however, if a closed cylindrical sample tube is used, the sample is taken out from the frozen state of the soil sample, which makes sampling difficult. In addition, the taken out soil sample needs to be immediately layered for water content testing, the frozen soil sample has high strength, and the layered cutting difficulty of the soil sample is large; if a conventional cutter axe knocking mode is adopted, the required cutting time is long, the temperature field and the moisture field in the soil sample can be changed, the test result is greatly influenced, and the key point of similar test design is how to ensure rapid sampling and sample cutting to avoid excessive temperature loss. In addition, the mode of knocking by the knife cutting axe cannot realize more accurate control on the sample cutting position.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a soil sample preparation facilities for solve the difficult problem of current soil sample, surely kind is difficult, in order to realize preparing the soil sample fast, accurately.
The embodiment of the utility model provides a soil sample preparation device, which comprises a base, an actuating mechanism, a sample pushing mechanism, a blanking mechanism and a sample cutting mechanism, wherein the actuating mechanism, the sample pushing mechanism and the blanking mechanism are sequentially arranged on the base along the length direction of the base; the sample pushing mechanism comprises a fixed frame for fixing a sample cylinder and a thrust plate for pushing a soil sample in the sample cylinder; the blanking mechanism comprises a blanking block, and a blanking groove is formed in the blanking block along the length direction of the base; the actuating mechanism is connected to the thrust plate so as to push the soil sample out of the charging chute; the sample cutting mechanism comprises a cutter which can move along the radial direction of the charging chute so as to cut the soil sample falling into the charging chute.
The actuating mechanism comprises a reaction frame and an actuator, the reaction frame comprises a fixedly connected with a first vertical plate of the base, the actuator comprises a cylinder body and an ejector rod, the cylinder body is abutted to the first vertical plate, one end of the ejector rod is slidably connected with the cylinder body, and the other end of the ejector rod is fixedly connected with the thrust plate.
The fixing frame comprises a second vertical plate, a third vertical plate and at least one first screw rod, the second vertical plate is fixedly connected to the base, one end of the first screw rod is connected to the third vertical plate, and the other end of the first screw rod is connected to the first vertical plate so as to adjust the distance between the third vertical plate and the second vertical plate and fix the sample cylinder between the second vertical plate and the third vertical plate; and the third vertical plate is also provided with a discharge hole so that the soil sample falls into the charging chute.
And one side of the second vertical plate, which faces the third vertical plate, is fixedly connected with a guide sleeve, and the guide sleeve is used for being inserted into the inner surface of the sample cylinder.
The vertical plate is arranged on the cylinder body, the actuating base plate is arranged between the cylinder body and the first vertical plate, one side of the actuating base plate is abutted to the first vertical plate, and the other side of the actuating base plate is abutted to the cylinder body.
The reaction frame further comprises a reinforcing rib, a first half-ring hoop and a second half-ring hoop, the reinforcing rib is fixedly connected to one side, away from the cylinder body, of the first vertical plate, and the reinforcing rib is further fixedly connected to the base; the convex surface detachably of first semi-ring staple bolt connect in the base, second semi-ring staple bolt detachably connect in first semi-encircling hoop, just the concave surface of second semi-ring staple bolt is relative with the concave surface of first semi-ring staple bolt, in order to overlap and locate outside the cylinder body.
The blanking mechanism further comprises a blanking baffle and at least one second screw, the blanking baffle is fixedly connected to the base, one end of the second screw is connected to the blanking baffle, and the other end of the second screw is connected to the blanking block, so that the distance between the blanking block and the blanking baffle can be adjusted, and the blanking block is abutted to the fixing frame.
The sample cutting mechanism further comprises a knife rest, the knife rest comprises two upright posts oppositely erected on two sides of the blanking block and a cross rod fixedly connected to the tops of the two upright posts, and a knife groove is formed in one side, facing the blanking block, of each upright post along the length direction of the upright post; the cutter comprises a cutter body and a cutter holder, the bottom of the cutter holder is fixedly connected to one end, deviating from the cutting edge, of the cutter body, and two sides of the cutter holder are slidably embedded in the cutter groove.
The side wall surfaces of two sides of the blanking block are provided with sliding grooves along the length direction of the blanking block, one side of each upright column, which faces the blanking block, is provided with a sliding block corresponding to the sliding groove, and the sliding blocks are slidably embedded in the sliding grooves.
The guide groove penetrates through the base along the width direction of the base; the tool rest further comprises sliding plates fixedly connected to the bottoms of the two stand columns, the sliding plates penetrate through the guide grooves, and the sliding plates can be slidably connected to the guide grooves along the length direction of the base.
The embodiment of the utility model provides a soil sample preparation facilities, including the base, locate the mechanism of actuating on the base in proper order, push away appearance mechanism and blanking mechanism along the length direction of base to and locate immediately and cut appearance mechanism in the blanking mechanism, fix the sample cylinder of filling with the soil sample through the mount that pushes away appearance mechanism, utilize and actuate mechanism and promote the thrust plate, make the soil sample break away from behind the sample cylinder, fall into the silo, then utilize the cutter whereabouts, cut the layering to the soil sample. This soil sample preparation facilities collects soil sampling, soil sample cutting is in an organic whole, the sampling method is simple, consuming time is short, the cutting soil sample position is accurate, have the characteristics that the low price is strong with the practicality, especially, be applicable to sample and cutting to frozen soil sample, frozen soil strength test can be carried out to the soil sample of taking out, tests such as microstructure test, the survey of the different high department water content of soil sample can be realized to the soil sample after the cutting, relevant result can provide the foundation for analysis and calculation that the frozen soil is relevant, the research to water migration among the soil freezing process provides the support, research and the prevention and cure of engineering frozen injury to cold district's soil body frost heaving theory have important theoretical and realistic meaning.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an isometric view of a soil sample preparation device in an embodiment of the invention;
FIG. 2 is a front view of a soil sample preparation device in an embodiment of the present invention;
FIG. 3 is a view taken along line A-A of FIG. 2;
FIG. 4 is a view from the B-B direction in FIG. 2;
fig. 5 is a left side view of a soil sample preparation device in an embodiment of the invention;
fig. 6 is a schematic structural diagram of a reaction frame according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of the second vertical plate, the guide sleeve and the guide disc in the embodiment of the present invention;
fig. 8 is a schematic structural view of a cutter in an embodiment of the present invention;
description of reference numerals:
1: a base; 11: a guide groove; 2: an actuating mechanism;
21: an actuator; 211: a cylinder body; 212: a top rod;
22: a first vertical plate; 23: reinforcing ribs; 24: a first half-ring hoop;
25: a second semi-ring hoop; 26: a reaction frame base plate; 27: a reaction frame vertical plate;
28: a reaction frame top plate; 3: a sample pushing mechanism; 31: a thrust plate;
32: a second vertical plate; 33: a third vertical plate; 331: a discharge hole;
34: a first screw; 35: a guide sleeve; 36: a guide plate;
37: a sample cylinder cushion block; 4: a blanking mechanism; 41: a blanking block;
411: a charging chute; 412: a chute; 42: a blanking baffle;
43: a second screw; 5: a sample cutting mechanism; 51: a cutter;
511: a cutter body; 512: a tool apron; 52: a column;
521: a cutter groove; 522: a slider; 53: a cross bar;
54: a slide plate; 6: a sample cartridge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "first", "second" and "third" are used for the sake of clarity in describing the numbering of the product parts and do not represent any substantial difference, unless explicitly stated or limited otherwise. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
It is to be understood that, unless otherwise expressly specified or limited, the term "coupled" is used broadly, and may, for example, refer to directly coupled devices or indirectly coupled devices through intervening media. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
Fig. 1 is the utility model discloses in the embodiment isometric view of a soil sample preparation facilities, fig. 2 is the utility model discloses in the embodiment a soil sample preparation facilities's main view, as shown in fig. 1 ~ 2, the embodiment of the utility model provides a soil sample preparation facilities who provides, including base 1, still include along base 1's length direction locate in proper order on base 1 actuate mechanism 2, push away model mechanism 3 and blanking mechanism 4 to and locate immediately and cut model mechanism 5 on blanking mechanism 4. The sample pushing mechanism 3 comprises a fixing frame for fixing the sample cylinder 6 and a thrust plate 31 for pushing the soil sample in the sample cylinder 6. The blanking mechanism 4 comprises a blanking block 41, and a blanking groove 411 is formed in the blanking block 41 along the length direction of the base 1. The actuating mechanism 2 is connected to the thrust plate 31 to push out the soil sample to the chute 411. The sample cutting mechanism 5 includes a cutter 51 movable in the radial direction of the chute 411 to cut the soil sample dropped into the chute 411.
Specifically, the base 1 may be a long strip flat plate, and the actuating mechanism 2, the sample pushing mechanism 3, and the blanking mechanism 4 are sequentially disposed on the upper surface of the base 1 from back to front along the length direction of the base 1, where the left side in fig. 2 is taken as the front side and the right side is taken as the back side in this embodiment. The actuating mechanism 2 can adopt any mechanism with a propelling function to realize the pushing of the thrust plate 31, and the direction of the pushing force is along the length direction of the base 1, which is the horizontal direction in the embodiment.
The sample pushing mechanism 3 comprises a fixing frame and a thrust plate 31, wherein the fixing frame is used for fixing the sample cylinder 6. The thrust plate 31 is a disk having a diameter equal to the diameter of the soil sample, i.e., the diameter of the thrust plate 31 is equal to the inner diameter of the sample cylinder 6. The rear end of the thrust plate 31 is fixedly connected to the actuating mechanism 2, and the front end of the thrust plate 31 extends into the sample tube 6 and abuts against the soil sample. The jacking force generated by the actuating mechanism 2 is uniformly distributed on the surface of the soil sample through the thrust plate 31, so that the soil sample is prevented from being inclined.
The blanking mechanism 4 comprises a blanking block 41 which is horizontally arranged on the upper surface of the base 1, and a blanking groove 411 is formed in the blanking block 41 along the length direction of the base 1, namely the axial direction of the blanking groove 411 is the horizontal direction. The charging chute 411 is an arc-shaped groove, the radius of the arc-shaped groove is the same as that of the soil sample, namely the diameter of the circle formed by the arc-shaped groove is equal to the inner diameter of the sample cylinder 6.
More specifically, the arc-shaped grooves correspond to a central angle of 90 ° to 150 °, and in one specific embodiment, the central angle is 120 °. The range of the central angle ensures that the charging chute 411 just catches the soil sample, simplifies the complexity of the manufacturing process of the sample cutting mechanism 5, and avoids the sharp part which can cut the experimenter.
The sample cutting mechanism 5 comprises a cutter 51, and the cutting edge of the cutter 51 faces downwards and can move along the radial direction of the charging chute 411, namely move up and down along the vertical direction. The cutter 51 is used for cutting the soil sample that falls into the charging chute 411, and the blade of cutter 51 just in time cooperatees with charging chute 411.
The embodiment provides a soil sample preparation facilities, including the base, locate the mechanism that actuates on the base in proper order along the length direction of base, push away a kind mechanism and blanking mechanism to and locate immediately and cut a kind mechanism in the blanking mechanism, fix the specimen cylinder of filling with the soil sample through the mount that pushes away a kind mechanism, utilize and actuate the mechanism and promote the thrust plate, make the soil sample break away from behind the specimen cylinder, fall into the blanking groove, then utilize the cutter whereabouts, cut the layering to the soil sample. This soil sample preparation facilities collects soil sampling, soil sample cutting is in an organic whole, the sampling method is simple, consuming time is short, the cutting soil sample position is accurate, have the characteristics that the low price is strong with the practicality, especially, be applicable to sample and cutting to frozen soil sample, frozen soil strength test can be carried out to the soil sample of taking out, tests such as microstructure test, the survey of the different high department water content of soil sample can be realized to the soil sample after the cutting, relevant result can provide the foundation for analysis and calculation that the frozen soil is relevant, the research to water migration among the soil freezing process provides the support, research and the prevention and cure of engineering frozen injury to cold district's soil body frost heaving theory have important theoretical and realistic meaning.
Further, as shown in fig. 1 to 3, the actuating mechanism 2 includes a reaction frame and an actuator 21, and the reaction frame includes a first vertical plate 22 fixedly connected to the base 1. The actuator 21 includes a cylinder body 211 and a top rod 212, the cylinder body 211 abuts against the first vertical plate 22, the rear end of the top rod 212 is slidably connected to the cylinder body 211, and the front end of the top rod 212 is fixedly connected to the thrust plate 31, where the fixing may be welding, bonding or integrated connection.
Specifically, the first vertical plate 22 is a square plate vertically and fixedly connected to the base 1. The actuator 21 may be a jack, such as a hydraulic jack or a pneumatic jack, to provide the thrust required to push the soil sample out of the sample tube 6. More specifically, the bearing capacity is 12 tons and more. The jack is a common actuator, is convenient and simple to use, has lower cost and is easy to purchase.
In addition, the actuator 21 can also adopt any other propelling device with an extending function, and a hydraulic propelling device with a constant propelling speed is preferred because performance experiments have higher requirements on the integrity of the soil sample.
Furthermore, the device further comprises an actuating pad (not shown) disposed between the cylinder body 211 and the first vertical plate 22, wherein the rear side of the actuating pad abuts against the first vertical plate 22, and the front side of the actuating pad abuts against the cylinder body 211. Specifically, the operation pad plate can be made of rectangular steel plate with uniform dimension specification, such as steel plate with thickness of 1 cm. Due to the limitation of the elongation of the actuator 21 and the different heights of the soil sample, when the actuator 21 (usually a jack) pushes the soil sample out of all the sample cylinders 6 in one full range, an actuating base plate is arranged between the cylinder body 211 and the first vertical plate 22 to adapt to the insufficient elongation of the actuator 21 and the height change of the soil sample, and the soil sample is pushed by implementing secondary actuation through the actuating base plate.
More specifically, during secondary actuation, the actuator 21 is unloaded to shorten the length to the unloaded length, the number of secondary actuation backing plates to be placed is calculated according to the length of the soil sample to be pushed and the pushing range of the actuator 21, the actuator backing plates equal to the calculated number are placed between the cylinder body 211 and the first vertical plate 22, and secondary pushing of the actuator 21 is carried out until all the soil samples are pushed out. The problems that the pushing range of the actuator 21 is insufficient and the length of the pushed soil sample is different are solved by arranging the actuating base plate. If the projecting amount of the actuator 21 is sufficiently large, the pushing-out operation may be performed only once without providing an actuating pad.
Further, as shown in fig. 1 to 3, the fixing frame includes a second vertical plate 32, a third vertical plate 33, and at least one first screw 34, the second vertical plate 32 is fixedly connected to the base 1, and the third vertical plate 33 can slide along the length direction of the base 1. The front end of the first screw 34 is connected to the third vertical plate 33, and the rear end of the first screw 34 is connected to the first vertical plate 22, so as to adjust the distance between the third vertical plate 33 and the second vertical plate 32, and fix the sample cylinder 6 between the second vertical plate 32 and the third vertical plate 33. The third vertical plate 33 is further opened with a discharging hole 331 so that the soil sample falls into the charging chute 411.
Specifically, the second vertical plate 32 and the third vertical plate 33 are square plates perpendicular to the base 1. The second vertical plate 32 is fixedly connected to the base 1, where the fixing may be welding, bonding or integral connection. The third vertical plate 33 is slidably connected to the base 1, can directly abut against the upper surface of the base 1, and can slide back and forth. The thrust plate 31 is located between the second vertical plate 32 and the third vertical plate 33, and the top rod 212 of the actuator 21 can penetrate through the second vertical plate 32 and then is fixed to the thrust plate 31.
The front end of the first screw 34 is connected to the third vertical plate 33, the rear end of the first screw 34 is connected to the first vertical plate 22, and the distance between the third vertical plate 33 and the second vertical plate 32 is adjusted by rotating the first screw 34 to be exactly equal to the length of the sample cylinder 6, so that the sample cylinder 6 is fixed between the second vertical plate 32 and the third vertical plate 33. In the process that the thrust plate 31 pushes the soil sample to move forwards, the friction force between the soil sample and the contact surface of the inner wall of the sample cylinder 6 has a tendency of driving the sample cylinder 6 to move forwards together, so that the sample cylinder 6 is pushed to the third vertical plate 33, and the forward thrust is applied, and because the third vertical plate 33 is in sliding connection with the base 1, the first screw 34 provides the third vertical plate 33 with the upper backward pulling force as the counter force to balance the forward thrust of the sample cylinder 6. Meanwhile, a lower backward thrust is provided for the third vertical plate 33 through the blanking mechanism 4 to serve as a counter force, the forward thrust of the sample cylinder 6 is further balanced, and the force and the moment acting on the third vertical plate 33 are balanced.
The third vertical plate 33 is further provided with a discharge hole 331, the diameter of the discharge hole 331 is larger than or equal to the inner diameter of the sample cylinder 6 and smaller than the outer diameter of the sample cylinder 6, and the discharge hole 331 is used for abutting against the sample cylinder 6 so as not to move forward along with the soil sample, and simultaneously can push the soil sample out of the discharge hole 331 and fall into the chute 411.
As shown in fig. 1 to 3 and 7, a guide sleeve 35 is further fixed to a side of the second vertical plate 32 facing the third vertical plate 33 (i.e., a front side of the second vertical plate 32), and the guide sleeve 35 is used for inserting the inner surface of the sample tube 6. Specifically, the outer diameter of the guide sleeve 35 is equal to the inner diameter of the sample cylinder 6, and the sample cylinder 6 filled with the soil sample is coaxially sleeved outside the guide sleeve 35 before sample pushing so as to achieve the purpose of fixing the position of the sample cylinder 6, so that the sample cylinder 6 cannot generate horizontal and vertical displacement in the sample pushing process.
Further, as shown in fig. 1 to fig. 3 and fig. 7, the device further includes a guide disc 36 fixedly connected to the opening end of the guide sleeve 35, the guide disc 36 is provided with a first guide hole matched with the push rod 212, and the push rod 212 extends out of the first guide hole and is fixedly connected to the thrust plate 31. Through setting up positioning disk 36 and first guiding hole, lead to actuator 21's ejector pin 212, guarantee that ejector pin 212 pushes out soil sample horizontally all the time, can prevent that the power of ejector pin 212 is great when actuator 21 extends, and lead to actuator 21 to rock from top to bottom left and right sides.
Furthermore, the second vertical plate 32 is provided with a second guiding hole matched with the cylinder body 211, and the front end of the cylinder body 211 can extend out of the second guiding hole. Through setting up the second guiding hole, make partial cylinder body, can stretch into guide sleeve 35 through the second guiding hole, when the extension volume of actuator 21 is limited, when need adopt the mode of action backing plate to carry out secondary actuation, can reduce the quantity of action backing plate. The top of standard jack is provided with one section propulsion shaft that the spiral stretches out supplementary lifting mostly, can unscrew preset distance according to the size of soil sample in advance before the jack installation, and the section of unscrewing gets into guide sleeve 35 through the second guiding hole, has both reduced the quantity of placing of backing plate, rational utilization guide sleeve 35's inner space again.
Further, as shown in fig. 1 to 2, a sample tube spacer 37 is further placed on the base 1 between the second vertical plate 32 and the third vertical plate 33, and the sample tube spacer 37 serves to elevate the sample tube 6 so that the sample tube 6 is concentric with the actuator 21 and the chute 411. Since the lower part of the blanking block 41 has a certain height, the sample cylinder cushion block 37 is placed to ensure that the soil sample is pushed out and then falls on the blanking groove 411. When the diameter of the selected sample cylinder 6 is larger than or smaller than the size of the preset sample cylinder 6, the matching can be performed by adjusting the height of the sample cylinder cushion block 37, the actuator 21, the sample cylinder 6 and the charging chute 411 are still ensured to be concentric, and then the soil sample is horizontally pushed out.
Further, as shown in fig. 4 and 6, the reaction frame further includes a reinforcing rib 23, a first half-ring hoop 24 and a second half-ring hoop 25, the reinforcing rib 23 is fixedly connected to a side of the first vertical plate 22 away from the cylinder body 211 (i.e., a rear side of the first vertical plate 22), and the reinforcing rib 23 is further fixedly connected to the base 1. The convex surface of the first half-ring hoop 24 is fixedly connected to the base 1, the second half-ring hoop 25 is detachably connected to the first half-ring hoop 24, and the concave surface of the second half-ring hoop 25 is opposite to the concave surface of the first half-ring hoop 24 so as to be sleeved outside the cylinder body 211.
Specifically, the reinforcing rib 23 is an inclined plate, a bottom surface of the reinforcing rib 23 is fixedly connected to the upper surface of the base 1, and a front side surface of the reinforcing rib 23 is fixedly connected to a rear side surface of the first vertical plate 22. The fixing can be welding, bonding or integral connection. Because the force of the actuator 21 in the propelling process is mainly the forward and backward force, the backward force is mainly borne by the first vertical plate 22, and the two reinforcing ribs 23 are distributed on the rear side of the first vertical plate 22, so that the actuator 21 is not only ensured to move forward and backward, but also the bearing capacity of the first vertical plate 22 is increased, and the first vertical plate 22 is prevented from deforming.
The convex surface of first semi-ring staple bolt 24 is rigid coupling in base 1, more specifically, the reaction frame still includes a horizontally reaction frame bottom plate 26, two vertical reaction frame riser 27 and a horizontally reaction frame roof 28, and reaction frame bottom plate 26 passes through the bolt and can dismantle to be connected in base 1, and reaction frame riser 27 rigid coupling is in reaction frame bottom plate 26, and reaction frame roof 28 rigid coupling is in two reaction frame risers 27, and the convex surface of first semi-ring staple bolt 24 can dismantle to be connected in reaction frame roof 28.
The second half hoop 25 is detachably connected to the first half hoop 24, and a concave surface of the second half hoop 25 is opposite to a concave surface of the first half hoop 24, so as to be sleeved outside the cylinder body 211. The anchor ear is used to prevent the actuator 21 from swinging up and down and left and right. Through setting up half ring staple bolt and the reaction frame bottom plate of can dismantling the connection, can change the type of actuator 21 according to actual conditions in a flexible way.
Furthermore, the blanking mechanism 4 further includes a blanking baffle 42 and at least one second screw 43, the blanking baffle 42 is fixedly connected to the base 1, and the blanking block 41 can slide along the length direction of the base 1. The front end of the second screw 43 is connected to the blanking baffle 42, and the rear end of the second screw 43 is connected to the blanking block 41, so as to adjust the distance between the blanking block 41 and the blanking baffle 42, and make the blanking block 41 abut against the fixed frame.
Specifically, the blanking baffle 42 is a square plate, and the plurality of second screws 43 are uniformly connected to the front end of the blanking block 41 along the circumferential direction of the blanking chute 411. The blanking block 41 moves backwards by rotating the second screw 43 to abut against the lower part of the front side of the third vertical plate 33, so as to balance the stress of the third vertical plate 33.
Further, as shown in fig. 1 to 3, 5 and 8, the sample cutting mechanism 5 further includes a knife rest, the knife rest includes two upright posts 52 oppositely erected on two sides of the blanking block 41 and a cross bar 53 fixedly connected to the tops of the two upright posts 52, and a knife slot 521 is provided along the length direction of the upright post 52 on one side of the upright post 52 facing the blanking block 41. The cutter 51 includes a cutter body 511 and a cutter seat 512, the bottom of the cutter seat 512 is fixedly connected to one end of the cutter body 511 (i.e. the upper end of the cutter body 511) away from the cutting edge, and two sides of the cutter seat 512 are slidably embedded in the cutter groove 521. The position of the blanking block 41 is limited by the arrangement of the tool rest.
By sliding the tool holder 512 down in the tool slot 521, the tool body 511 can quickly drop vertically to impact the soil sample on the chute 411, thereby completing the sample slicing. Through setting up surely kind mechanism 5, reduced surely kind consuming time, reduced surely kind process to the influence in soil sample temperature field, moisture field, improved the measuring accuracy, still guaranteed notched level and smooth, realized surely getting the high accuracy control at position to the water content.
Further, as shown in fig. 1 to 2 and 5, the wall surfaces of the left and right sides of the blanking block 41 are both provided with sliding grooves 412 along the length direction of the blanking block 41, one side of each upright column 52 facing the blanking block 41 is provided with a sliding block 522 corresponding to the sliding groove 412, and the sliding block 522 is slidably embedded in the sliding groove 412. Specifically, the slide groove 412 is a horizontal groove in the front-rear horizontal direction, so that the tool holder can move only one-dimensionally in the front-rear direction.
Further, as shown in fig. 1 to 2 and 5, a guide groove 11 is formed in the base 1 in a region corresponding to the falling block 41, and the guide groove 11 penetrates the base 1 in the width direction of the base 1. The tool holder further comprises a sliding plate 54 fixedly connected to the bottoms of the two upright columns 52, the sliding plate 54 is arranged in the guide groove 11 in a penetrating manner, and the sliding plate 54 can be connected to the guide groove 11 in a sliding manner along the length direction of the base 1. Specifically, the width of the guide groove 11 is the slidable length of the slide plate 54, and the guide groove 11 and the slide plate 54 are arranged so that the tool holder can move only in one dimension in the front-rear direction. The sliding groove 412 and the sliding block 522 can be used as a first limiting component, the guide groove 11 and the sliding plate 54 can be used as a second limiting component, and the first limiting component and/or the second limiting component can be selected to limit the front-back translation of the tool rest.
Furthermore, scales are marked on the side surface of the blanking block 41, and the position of soil sample cutting is accurately controlled through the movement of the tool rest. And a locking bolt (not shown in the figure) is further arranged on the tool rest, the locking bolt is firstly unscrewed, the position of the tool rest is adjusted according to the requirement, and after the adjustment is finished, the locking bolt is screwed to limit the position of the tool rest to be unchanged. Locking bolts may be provided on the area of the columns 52 corresponding to the blanking block 41, the locking bolts extending transversely through the columns 52 in a direction parallel to the cross bar 53 against the side walls of the blanking block 41. In addition, a locking bolt may be provided at the bottom of the slide plate 54, which bolt extends longitudinally through the slide plate 54 in a direction parallel to the upright 52, against the base 1 or the upright 52. Through setting up scale and locking bolt, realized the accurate control to soil sample cutting position.
Can see through above embodiment, the utility model provides a soil sample preparation facilities, including the base, locate the mechanism of actuating on the base in proper order along the length direction of base, push away appearance mechanism and blanking mechanism to and locate immediately and cut appearance mechanism in the blanking mechanism, fix the sample cylinder that is filled with the soil sample through the mount that pushes away appearance mechanism, utilize to actuate mechanism and promote the thrust plate, make the soil sample break away from behind the sample cylinder, fall into the blanking groove, then utilize the cutter whereabouts, cut the layering to the soil sample. This soil sample preparation facilities collects soil sampling, soil sample cutting is in an organic whole, the sampling method is simple, consuming time is short, the cutting soil sample position is accurate, have the characteristics that the low price is strong with the practicality, especially, be applicable to sample and cutting to frozen soil sample, frozen soil strength test can be carried out to the soil sample of taking out, tests such as microstructure test, the survey of the different high department water content of soil sample can be realized to the soil sample after the cutting, relevant result can provide the foundation for analysis and calculation that the frozen soil is relevant, the research to water migration among the soil freezing process provides the support, research and the prevention and cure of engineering frozen injury to cold district's soil body frost heaving theory have important theoretical and realistic meaning.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A soil sample preparation device comprises a base, and is characterized by further comprising an actuating mechanism, a sample pushing mechanism, a blanking mechanism and a sample cutting mechanism, wherein the actuating mechanism, the sample pushing mechanism and the blanking mechanism are sequentially arranged on the base along the length direction of the base; the sample pushing mechanism comprises a fixed frame for fixing a sample cylinder and a thrust plate for pushing a soil sample in the sample cylinder; the blanking mechanism comprises a blanking block, and a blanking groove is formed in the blanking block along the length direction of the base; the actuating mechanism is connected to the thrust plate so as to push the soil sample out of the charging chute; the sample cutting mechanism comprises a cutter which can move along the radial direction of the charging chute so as to cut the soil sample falling into the charging chute.
2. The soil sample preparation device according to claim 1, wherein the actuating mechanism comprises a reaction frame and an actuator, the reaction frame comprises a first vertical plate fixedly connected to the base, the actuator comprises a cylinder body and a top rod, the cylinder body abuts against the first vertical plate, one end of the top rod is slidably connected to the cylinder body, and the other end of the top rod is fixedly connected to the thrust plate.
3. The soil sample preparation device according to claim 2, wherein the fixing frame comprises a second vertical plate, a third vertical plate and at least one first screw, the second vertical plate is fixedly connected to the base, one end of the first screw is connected to the third vertical plate, and the other end of the first screw is connected to the first vertical plate, so as to adjust the distance between the third vertical plate and the second vertical plate, so that the sample cylinder is fixed between the second vertical plate and the third vertical plate; and the third vertical plate is also provided with a discharge hole so that the soil sample falls into the charging chute.
4. The soil sample preparation device according to claim 3, wherein a guide sleeve is further fastened to a side of the second vertical plate facing the third vertical plate, and the guide sleeve is used for inserting the inner surface of the sample cylinder.
5. The soil sample preparation device of claim 2, further comprising an actuator pad disposed between the cylinder and the first riser, wherein one side of the actuator pad abuts against the first riser and the other side of the actuator pad abuts against the cylinder.
6. The soil sample preparation device according to claim 2, wherein the reaction frame further comprises a reinforcing rib, a first half-ring hoop and a second half-ring hoop, the reinforcing rib is fixedly connected to a side of the first vertical plate facing away from the cylinder body, and the reinforcing rib is further fixedly connected to the base; the convex surface detachably of first semi-ring staple bolt connect in the base, second semi-ring staple bolt detachably connect in first semi-encircling hoop, just the concave surface of second semi-ring staple bolt is relative with the concave surface of first semi-ring staple bolt, in order to overlap and locate outside the cylinder body.
7. The soil sample preparation device as claimed in claim 1, wherein the blanking mechanism further comprises a blanking baffle and at least one second screw, the blanking baffle is fixedly connected to the base, one end of the second screw is connected to the blanking baffle, and the other end of the second screw is connected to the blanking block, so as to adjust the distance between the blanking block and the blanking baffle, and the blanking block is abutted to the fixing frame.
8. The soil sample preparation device as recited in claim 1, wherein said cutting mechanism further comprises a knife rest, said knife rest comprises two columns oppositely standing on both sides of said falling block and a cross bar fixedly connected to the tops of said two columns, said column is provided with a knife slot along the length direction of said column on the side facing said falling block; the cutter comprises a cutter body and a cutter holder, the bottom of the cutter holder is fixedly connected to one end, deviating from the cutting edge, of the cutter body, and two sides of the cutter holder are slidably embedded in the cutter groove.
9. The soil sample preparation device as claimed in claim 8, wherein both side walls of said blanking block are provided with sliding grooves along the length direction of said blanking block, and a side of each of said upright posts facing said blanking block is provided with a sliding block corresponding to said sliding grooves, said sliding block being slidably embedded in said sliding grooves.
10. The soil sample preparation device as claimed in claim 8, wherein the base has a guide groove formed in a region corresponding to the falling block, the guide groove penetrating the base in a width direction of the base; the tool rest further comprises sliding plates fixedly connected to the bottoms of the two stand columns, the sliding plates penetrate through the guide grooves, and the sliding plates can be slidably connected to the guide grooves along the length direction of the base.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514506A (en) * | 2019-08-13 | 2019-11-29 | 北京建筑大学 | Soil pattern preparation facilities |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514506A (en) * | 2019-08-13 | 2019-11-29 | 北京建筑大学 | Soil pattern preparation facilities |
| CN110514506B (en) * | 2019-08-13 | 2024-04-05 | 北京建筑大学 | Soil sample preparation device |
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