CN113740134B - Be used for triaxial test soil sample preparation facilities - Google Patents
Be used for triaxial test soil sample preparation facilities Download PDFInfo
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- CN113740134B CN113740134B CN202111120846.5A CN202111120846A CN113740134B CN 113740134 B CN113740134 B CN 113740134B CN 202111120846 A CN202111120846 A CN 202111120846A CN 113740134 B CN113740134 B CN 113740134B
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- 239000002689 soil Substances 0.000 title claims abstract description 79
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims description 94
- 238000003825 pressing Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000005056 compaction Methods 0.000 abstract description 2
- 238000013459 approach Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a triaxial test soil sample preparation device, which solves the problem that in the prior art, the soil sample compaction is easily caused by applying external force by a worker, so that the similar soil sample is stressed differently or damaged each time. The invention comprises the following steps: a mounting assembly that is relatively fixed to the support platform; the clamping assembly is arranged on the installation assembly and comprises a first pull rod and a first elastic piece, the first pull rod is slidably connected with the installation assembly, and the first pull rod is connected with the installation assembly through the first elastic piece so that the first pull rod can elastically slide relative to the installation assembly; under the operating condition, when the first pull rod elastically slides relative to the installation component, one end of the first pull rod is close to the supporting platform so as to clamp the soil sample. The invention has the advantages of ensuring that the stress of similar soil samples is the same in the clamping process, thereby ensuring the integrity of the soil samples during clamping, and further ensuring the reliability and the accuracy of experimental results.
Description
Technical Field
The invention relates to the technical field of triaxial test, in particular to a soil sample preparation device for triaxial test.
Background
With rapid development of urban construction and vigorous development of industries such as traffic, ports and wharfs, geotechnical engineering investigation plays an indispensable role in construction, in geotechnical engineering investigation, in order to measure shear strength of a strongly-changed geotechnical body, a triaxial test method is generally adopted, and preparation of a sample in the triaxial test method is a rather troublesome link, generally, 10cm of undisturbed soil sample is fixed on a device, and then the soil sample is cut into a standard cylinder shape, so that the sample requirement of triaxial test is met.
The existing soil sample is fixed by screwing the ejector rod by a worker, so that the stress of each time of soil sample is difficult to ensure to be the same, namely, in the process of sampling similar soil samples for many times, the pressure of each soil sample is different when being clamped, so that the internal tissue structure of some soil samples can be damaged due to overlarge external force or the clamping is unstable due to overlarge external force, and the test results of a plurality of soil samples are not the same, so that the actual soil sample test data can be influenced.
Disclosure of Invention
The invention aims to solve the technical problem of ensuring that the clamping pressure of similar soil samples is the same in the process of sampling for multiple times, and provides a triaxial test soil sample preparation device which is used for solving the problem that the compaction of the soil samples by applying external force by workers in the prior art is easy to cause different stress or damage of the similar soil samples each time.
The invention is realized by the following technical scheme:
a be used for triaxial test soil sample preparation facilities, including being used for placing the supporting platform of soil sample, still include: a mounting assembly that is relatively fixed to the support platform; the clamping assembly is arranged on the installation assembly and comprises a first pull rod and a first elastic piece, the first pull rod is slidably connected with the installation assembly, and the first pull rod is connected with the installation assembly through the first elastic piece so that the first pull rod can elastically slide relative to the installation assembly; under the operating condition, when the first pull rod elastically slides relative to the installation component, one end of the first pull rod is close to the supporting platform so as to clamp the soil sample.
According to the invention, through the arrangement of the first pull rod and the first elastic piece, the elastic force provided by the first elastic piece is used as the clamping force for clamping the soil sample, and the clamping force provided by each position of the first pull rod in the elastic sliding range is constant, so that the pressure of the same kind of soil sample in each soil sample preparation process is constant, on one hand, the soil sample is prevented from being damaged, on the other hand, the properties of the soil samples prepared at different times are ensured to be equivalent, and the accuracy of the triaxial test result is improved.
Preferably, the locking device further comprises a locking assembly, wherein the locking assembly comprises a second pull rod, an included angle is formed between the axis of the second pull rod and the axis of the first pull rod, the second pull rod is slidably connected with the mounting assembly, a second elastic piece is arranged between the second pull rod and the mounting assembly, and one end of the second pull rod is abutted against the first pull rod under the elastic action of the second elastic piece; the first pull rod is provided with a clamping block, and one end of the second pull rod is limited to the clamping block in the axial direction of the first pull rod.
Preferably, the method further comprises: a positioning assembly slidably coupled to the mounting assembly; a cutting assembly coupled to the positioning assembly, the cutting assembly configured to cut a soil sample; the cutting assembly is moved toward or away from the soil sample as the positioning assembly slides relative to the mounting assembly.
Further, the cutting assembly is slidably connected to the positioning assembly, the cutting assembly has a driving member which is relatively fixed to the positioning assembly, and the cutting assembly slides relative to the positioning assembly under the driving of the driving member.
Further, as one embodiment of the cutting assembly, the cutting assembly includes a moving frame, a first cutting member, a second cutting member, and a third gear; the first cutting member and the second cutting member are respectively provided with a first rack part and a second rack part, the first cutting member and the second cutting member are respectively meshed with the third gear through the first rack part and the second rack part, the first rack part and the second rack part are respectively positioned on two radial sides of the third gear, the first cutting member and the second cutting member are respectively connected with the movable frame in a sliding mode, and the movable frame is connected with the mounting assembly in a sliding mode.
Further, the first cutting element and the second cutting element are respectively provided with a sliding block, and the movable frame is provided with corresponding sliding grooves.
Further, the supporting platform is provided with a rotary power source, one end of the first pull rod is rotatably connected with a compacting plate, and the compacting plate is used for compacting soil samples.
Further, as a specific implementation mode of the positioning assembly, the positioning assembly comprises positioning rods, the installation assembly is provided with sliding grooves, and two ends of each positioning rod are respectively sleeved in two sliding grooves to form sliding connection.
Preferably, the first elastic member and the second elastic member are coil springs or gas springs or rubber springs.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the triaxial test soil sample preparation device provided by the invention, through the arrangement of the first pull rod and the first elastic piece, the elastic force provided by the first elastic piece is used as the clamping force for clamping the soil sample, and the clamping force provided by each position of the first pull rod in the elastic sliding range is constant, so that the pressure of the similar soil sample in each preparation process of the soil sample is constant, the soil sample is prevented from being damaged, the property of the soil sample prepared at different times is ensured to be equivalent, and the accuracy of the triaxial test result is improved.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an overall device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a mounting assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a partial structure assembly according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 5 is a schematic diagram of an explosion structure according to an embodiment of the present invention;
FIG. 6 is a schematic view of a combination structure of a positioning assembly and a cutting assembly according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;
fig. 8 is a schematic view of a cutting assembly according to an embodiment of the present invention.
In the drawings, the reference numerals and corresponding part names:
100-mounting components, 110-mounting frames, 111-slide ways, 112-supporting legs, 120-fixing shells, 130-positioning barrels, 200-clamping components, 210-first pull rods, 211-pull balls, 220-clamping blocks, 230-first elastic pieces, 240-pressing rods, 241-rotating rings, 250-pressing plates, 251-rotating grooves, 260-supporting platforms, 261-washers, 300-locking components, 310-second pull rods, 320-locking blocks, 330-second elastic pieces, 400-positioning components, 410-positioning rods, 411-external screw parts, 420-connecting plates, 430-rotating blocks, 431-anti-skid strips, 500-rotating components, 510-first motors, 520-first gears, 530-second gears, 540-first rotating shafts, 600-cutting components, 610-driving pieces, 620-moving frames, 621-slide grooves, 630-second motors, 640-second rotating shafts, 650-third gears, 660-racks, 670-first cutting pieces, 671-sliding blocks and 680-second cutting pieces.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Examples
As shown in fig. 1 to 8, the apparatus for preparing a triaxial test soil sample according to the embodiment of the present invention includes a support platform 260 for placing a soil sample, and further includes: a mounting assembly 100 that remains relatively stationary with the support platform 260; the clamping assembly 200 is arranged on the mounting assembly 100, the clamping assembly 200 comprises a first pull rod 210 and a first elastic piece 230, the first pull rod 210 is slidably connected with the mounting assembly 100, and the first pull rod 210 and the mounting assembly 100 are connected through the first elastic piece 230 so that the first pull rod 210 can elastically slide relative to the mounting assembly 100; in the working state, when the first pull rod 210 elastically slides relative to the mounting assembly 100, one end of the first pull rod 210 approaches the supporting platform 260 to clamp the soil sample.
Specifically, referring to fig. 4, in order to show the integrity of the device, the installation assembly 100 is provided with an installation frame 110 in a shape of a standing concave, the support platform 260 is connected to a lower plate of the installation assembly 100, the first pull rod 210 is connected to an upper plate of the installation frame 110, wherein the upper plate is provided with a avoidance hole, the first pull rod 210 passes through the avoidance hole to form a slidable connection with the installation frame 110, in order to ensure the stability and selectivity in the sliding process of the first pull rod 210, the installation frame 110 is further provided with a positioning cylinder 130, the positioning cylinder 130 is in a cup shape, the bottom of the positioning cylinder 130 is provided with a through hole with a diameter matched with the first pull rod 210, the first pull rod 210 passes through the through hole to form a slidable connection with the positioning cylinder 130, and the through hole and the avoidance hole jointly form a circumferential limit to the first pull rod 210 in the sliding process, so that the first pull rod 210 slides strictly along the axial direction of the positioning cylinder; the first elastic member 230 is connected between the first pull rod 210 and the bottom of the positioning cylinder 130, and the first pull rod 210 elastically slides in a direction approaching the support platform 260 under the elastic action of the first elastic member 230.
It can be appreciated that, in this embodiment, when the positioning cylinder 130 is disposed on the mounting assembly 100, the positioning cylinder 130 can be regarded as a part of the mounting assembly 100, and the positioning cylinder 130 performs the function of limiting and guiding on the one hand, and also protects the first pull rod 210 on the other hand.
It can be understood that in the present embodiment, the essence of realizing the soil sample clamping is that the distance between one end of the first pull rod 210 and the support platform 260 in the normal direction of the support platform 260 is gradually reduced, so the direction of the axis of the first pull rod 210 is not limited as long as the first pull rod can approach the support platform 260 after the elastic sliding, however, based on the sliding direction of the first pull rod 210 in the present embodiment, the axis of the first pull rod 210 and the support platform 260 need to form an included angle, so that the clamping is convenient, and friction is prevented from occurring between one end of the first pull rod and the soil sample during the clamping, and the axis of the first pull rod 210 is preferably set to be perpendicular to the support platform 260.
It can be appreciated that, in the present embodiment, the sliding direction of the first pull rod 210 is uniquely determined based on the arrangement of the avoidance hole and/or the through hole, so that the direction of the elastic force generated by the first elastic member 230 is not limited as long as it is not perpendicular to the axis of the first pull rod 210, and in order to maximize the efficiency of the first elastic member 230, the direction of the elastic force generated by the first elastic member 230 is preferably set to be coincident with or parallel to the axis of the first pull rod 210.
It should be noted that, in this embodiment, the avoidance hole is used to limit the first pull rod 210 during the sliding process, and in this embodiment, the avoidance hole is set to simplify the processing and the structure, so in other embodiments, the avoidance hole may be replaced by a sleeve or a plurality of limit portions arranged circumferentially.
In the present embodiment, the elastic sliding refers to the sliding of the first pull rod 210 along the axial direction of the first pull rod 210 under the action of elastic force.
According to the invention, through the arrangement of the first pull rod 210 and the first elastic piece 230, the elastic force provided by the first elastic piece 230 is used as the clamping force for clamping the soil sample, and the clamping force provided by each position of the first pull rod 210 in the elastic sliding range is constant, so that the pressure of the same kind of soil sample in each soil sample preparation process is constant, on one hand, the soil sample is prevented from being damaged, on the other hand, the properties of the soil samples prepared in different times are ensured to be equivalent, and the accuracy of the triaxial test result is improved.
Further preferably, the locking assembly 300 further comprises a locking assembly 300, the locking assembly 300 comprises a second pull rod 310 with an axis forming an included angle with the axis of the first pull rod 210, the second pull rod 310 is slidably connected with the mounting assembly 100, a second elastic member 330 is arranged between the second pull rod 310 and the mounting assembly 100, and one end of the second pull rod 310 is abutted against the first pull rod 210 under the elastic action of the second elastic member 330; the first pull rod 210 is provided with a clamping block 220, and one end of the second pull rod 310 forms a limit on the clamping block 220 in the axial direction of the first pull rod 210.
Specifically, referring to fig. 4 and 5, the outer wall of the positioning cylinder 130 extends outwards to form a cylinder, the inner cavity of the cylinder is communicated with the inner cavity of the positioning cylinder 130, the bottom of the cylinder is located at one end of the cylinder away from the positioning cylinder 130, a round hole is formed at the bottom of the cylinder, a second pull rod 310 is sleeved in the round hole, the diameter of one end of the second pull rod 310 located in the cylinder is increased to form a locking block 320, a second elastic member 330 is connected between the locking block 320 and the bottom of the cylinder, under the elastic action of the second elastic member 330, the locking block 320 of the second pull rod 310 abuts against the first pull rod 210, a shaft shoulder is arranged on the shaft section of the first pull rod 210, and serves as a clamping block 220 of the first pull rod 210, and in the sliding process of the first pull rod 210, when the clamping block 220 abuts against the locking block 320, one end of the second pull rod 310 forms a limit on the clamping block 220 in the axial direction of the first pull rod 210.
In one possible embodiment, referring to fig. 1, further comprising: a positioning assembly 400 slidably coupled to the mounting assembly 100; a cutting assembly 600 coupled to the positioning assembly 400, the cutting assembly 600 for cutting a soil sample; the cutting assembly 600 approaches or moves away from the soil sample as the positioning assembly 400 slides relative to the mounting assembly 100.
In this embodiment, the positioning assembly 400 is used as an intermediate connecting piece for sliding connection between the cutting assembly 600 and the mounting assembly 100, on one hand, the space between the soil sample and the cutting assembly 600 is convenient to adjust, and on the other hand, the cutting assembly 600 and the positioning assembly 400 can form sliding connection or rotating connection, so that the posture of the cutting assembly 600 and the cutting direction of the cutting assembly 600 are changeable, and then the working procedures such as replacement and adjustment of a cutter of the cutting assembly 600 are avoided, and the cutting efficiency is improved.
For example, in one possible embodiment, referring to fig. 1, the cutting assembly 600 is slidably coupled to the positioning assembly 400, the cutting assembly 600 having a driver 610 that remains relatively stationary with the positioning assembly 400, the cutting assembly 600 being slidably coupled to the positioning assembly 400 by the driver 610.
In this embodiment, the cutting assembly 600 and the positioning assembly 400 may be first considered as a unit and the mounting assembly 100 are slidingly connected, the unit has one degree of freedom of space, and for the inside, the sliding connection of the cutting assembly 600 and the positioning assembly 400 has a second degree of freedom relative to the cutting assembly 600, so as to provide a basis for different cutting directions or cutting modes, for example, in the example of fig. 1, the sliding direction of the positioning assembly 400 and the mounting assembly 100 is set to be parallel to the radial direction of the first pull rod 210, i.e. the radial direction of the soil sample, and the sliding direction of the cutting assembly 600 is set to be parallel to the axial direction of the first pull rod 210, so that the cutting depth and the cutting height can be adjusted, while the driving member 610 provided in this embodiment drives the cutting assembly 600 to slide relative to the positioning assembly 400, and also serves as a positioning member of the cutting assembly 600 in the sliding direction thereof, and the driving member 610 is set to include, but is not limited to, a cylinder, an electric cylinder, a hydraulic cylinder, a telescopic electric pole, or a worm gear motor, etc.
As a specific embodiment of the positioning assembly 400, the positioning assembly 400 includes a positioning rod 410, the installation assembly 100 is provided with a sliding slot 621, and two ends of the positioning rod 410 are respectively sleeved in the two sliding slots 621 to form sliding connection respectively.
Specifically, referring to fig. 1, two positioning rods 410 are provided, the upper plate of the mounting frame 110 is provided with two bar-shaped holes, the width of each bar-shaped hole is greater than or equal to the diameter of the corresponding positioning rod 410, two slide ways 111 are provided on the lower plate of the mounting frame 110, each slide way 111 is a bar-shaped groove, the two bar-shaped holes correspond to the positions and projections of the two slide ways 111, one end of each positioning rod 410 is arranged in each slide way 111, the other end of each positioning rod 410 is arranged in the corresponding bar-shaped hole, the positioning rods 410 can slide along each bar-shaped hole, in order to ensure the simultaneous sliding of the two positioning rods 410 to facilitate the adjustment and reduce the positioning error, the two positioning rods 410 are connected together through a connecting plate 420, in order to avoid the interference between the connecting plate 420 and the first pull rod 210 or a soil sample or other structures in the sliding process of the positioning rods 410, preferably, the lower plate 420 is respectively communicated with the two bar-shaped slide ways 111, the connecting plate 420 is respectively connected with one ends of the two positioning rods 410 and is arranged in the cavity, the positioning rods 410 are respectively, the positioning rods 410 are arranged in the corresponding positioning rods after the positioning rods 410 are adjusted, the positioning rods are separated from one end of each other, the positioning rods 410 are far from the screw blocks, the screw blocks 431 are arranged at the screw blocks, and the screw blocks are screwed against the screw blocks 430, and the screw blocks 430 are screwed against the screw blocks 430, and the screw blocks are arranged at the screw blocks and the screw blocks 430 are matched with the screw blocks when the screw blocks 430.
It is understood that the mounting position of the screwing block 430 may be above or below the upper plate of the mounting frame 110, and for convenience of operation, the mounting position of the screwing block 430 is set above the upper plate of the mounting frame 110.
As one specific embodiment of the cutting assembly 600, the cutting assembly 600 includes a traveling carriage 620, a first cutting member 670, a second cutting member 680, and a third gear 650; the first cutting element 670 and the second cutting element 680 are respectively provided with a first rack portion and a second rack portion, the first cutting element 670 and the second cutting element 680 are respectively meshed with the third gear 650 through the first rack portion and the second rack portion, the first rack portion and the second rack portion are respectively located at two radial sides of the third gear 650, the first cutting element 670 and the second cutting element 680 are respectively connected with the moving frame 620 in a sliding manner, and the moving frame 620 is connected with the mounting assembly 100 in a sliding manner.
Specifically, referring to fig. 6 and 8, the driving element 610 is fixedly connected to the mounting frame 110 and the moving frame 620 is slidably connected to the output end of the driving element 610 or the driving element 610 is slidably connected to the mounting frame 110 and the moving frame 620 is fixedly connected to the output end of the driving element 610, the connection direction of the sliding connection is parallel to the sliding direction of the positioning rod 410, the moving frame 620 is slidably connected to the positioning rod 410, the moving frame 620 is fixedly connected with the second motor 630, the second motor 630 is fixedly connected with the second rotating shaft 640, the second rotating shaft 640 is rotatably connected with the moving frame 620, the second rotating shaft 640 is rotatable about its own axis, the third gear 650 is connected to the second rotating shaft 640, the two racks 660 are meshed with the third gear 650 on two radial sides of the third gear 650 as a first rack portion and a second rack portion, the first cutting element 670 and the second cutting element 680 are fixedly connected to the first rack portion and the second rack portion, and are slidably connected to the moving frame 620, the first cutting element 670 and the second cutting element 680 are fixedly connected to the slide block 671, the slide block 621 is provided with the slide groove 621, the slide block 620 is rotatably connected to the second cutting element 680, and the slide block 671 can be placed on the slide block 621 and the slide block 621 along the slide groove 621 and the slide groove 671.
In one possible embodiment, the support platform 260 is configured with a rotary power source, and a compacting plate 250 is rotatably connected to one end of the first pull rod 210, and the compacting plate 250 is used for compacting soil samples.
Specifically, can refer to fig. 1, fig. 4 and fig. 7, the rotating assembly 500 is as the rotary power source of supporting platform 260, concretely, can refer to fig. 4, fig. 5, the rotating assembly 500 includes first motor 510, first gear 520, second gear 530 and first pivot 540, first motor 510 fixed connection is in fixed shell 120, first gear 520 is located in fixed shell 120, and connect in the output of first motor 510, second gear 530 meshing transmission is in first gear 520, first pivot 540 is connected in second gear 530, and first pivot 540 fixed connection is in supporting platform 260, first pull rod 210 is through clamp rod 240 and clamp plate 250 rotatable coupling, specifically, can refer to fig. 4, fig. 5, clamp rod 240 fixed connection is kept away from one end of first pull rod 210 in clamp block 220, clamp plate 250 rotates and is connected in clamp rod 240 one end of keeping away from clamp block 220, clamp rod 240 fixed connection has rotatory circle 241, rotatory circle 251 has been seted up to clamp plate 250, rotatory circle 241 rotates and is connected in rotatory circle 251, through rotatory circle 241 and rotatory circle 251 can make when the soil sample in the rotation, can realize at the steady cutting of supporting platform 260 and can realize pressing down between support plate 260 and the support plate 260 and can realize that can not pressing down the support platform 260, and can realize the quick change through the support plate 260, and can realize the quick change, and can realize the gasket 260, and can realize the realization, and can further realize the cleaning and can realize the quick change, the gasket is further, the supporting platform is convenient to the surface, and can be changed, and can realize the cleaning and the gasket is further by the surface and can be changed, and can be changed.
It can be appreciated that the supporting platform 260 may also be directly connected to the first motor 510, in this embodiment, a gear is used as an intermediate transmission member, so as to facilitate rotation speed regulation, ensure rotation positioning accuracy, etc., in other embodiments, the rotation accuracy may be further improved by adding a first gear 520 with smaller specification parameters,
when needs carry out soil sample cutting, traditional operation mode is all through the manual work rotates supporting platform 260, and operating personnel still has to carry out cutting operation simultaneously, and then can increase operating personnel's work, and also can make the precision of cutting not too accurate, and then can realize the control to supporting platform 260 through the effect of first motor 510, realize automatic rotation soil sample, also can set up the rotatory interval time of supporting platform 260 according to cutting tool's speed, and then cut the soil sample when stationary, can rotate automatically after cutting, and then avoid operating personnel to cut and rotate the soil sample simultaneously.
In a preferred embodiment, referring to fig. 4 and 5, the first elastic member 230 and the second elastic member 330 are coil springs or gas springs or rubber springs. Specifically, the first elastic member 230 is sleeved on the first pull rod 210, the first elastic member 230 is located between the fixture block 220 and the bottom of the positioning cylinder 130, the second elastic member 330 is sleeved on the second pull rod 310, and the second elastic member 330 is located between the locking block 320 and the bottom of the cylinder.
In one possible embodiment, in order to facilitate the first and second tie rods 210 and 310 to be pulled, the first and second tie rods 210 and 310 are connected at one ends with the pull balls 211, so that the worker is easy to hold when pulling the first and second tie rods 210 and 310.
In one possible embodiment, the mounting assembly 100 is provided with support legs 112 in order to ensure a smooth placement of the entire device.
During operation, a soil sample to be cut is placed on the supporting platform 260, the second pull rod 310 is pulled, the locking block 320 moves outwards, the locking block 320 is separated from the clamping block 220, the first pull rod 210 is acted by the first elastic piece 230, the first pull rod 210 contracts inwards, the first pull rod is further pushed against the clamping block 220 to move downwards, meanwhile, the pressing rod 240 is driven to move downwards, namely, the pressing plate 250 moves downwards, the soil sample is fixed on the device through the action of the pressing plate 250 and the supporting platform 260, the positioning rods 410 are moved, the positioning rods 410 on two sides are simultaneously moved through the action of the connecting plate 420, the distance between the first cutting piece 670 or the second cutting piece 680 and the soil sample is adjusted according to the soil sample diameter actually required to be cut, the screwing block 430 is rotated, the screwing block 430 is abutted against the mounting frame 110, the positioning rods 410 are directly fixed on the mounting frame 110, the second motor 630 is controlled to rotate or overturn according to the requirement, and therefore the first cutting piece 670 or the second cutting piece 680 is close to or the supporting platform 260, the first cutting piece is driven to move close to or close to the cutting assembly 600, and the first cutting assembly is rotated, and the relative efficiency can be improved, and the manual work can be rotated relative to the cutting assembly is guaranteed, and the first cutting assembly is rotated, and the soil sample can be cut, the soil sample is cut, and the soil sample is manually cut.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. A be used for triaxial test soil sample preparation device, including being used for placing supporting platform (260) of soil sample, its characterized in that still includes:
a mounting assembly (100) that remains relatively stationary with the support platform (260);
the clamping assembly (200) is arranged on the mounting assembly (100), the clamping assembly (200) comprises a first pull rod (210) and a first elastic piece (230), the first pull rod (210) is slidably connected with the mounting assembly (100), and the first pull rod (210) is connected with the mounting assembly (100) through the first elastic piece (230) so that the first pull rod (210) can elastically slide relative to the mounting assembly (100);
in the working state, when the first pull rod (210) elastically slides relative to the mounting assembly (100), one end of the first pull rod (210) is close to the supporting platform (260) so as to clamp a soil sample;
further comprises: a positioning assembly (400) slidably coupled to the mounting assembly (100);
a cutting assembly (600) coupled to the positioning assembly (400), the cutting assembly (600) for cutting a soil sample;
the cutting assembly (600) is moved closer to or farther from the soil sample as the positioning assembly (400) slides relative to the mounting assembly (100);
wherein the supporting platform (260) is provided with a rotary power source, one end of the first pull rod (210) is rotatably connected with a compacting plate (250), and the compacting plate (250) is used for compacting soil samples;
the rotary power source comprises a first motor (510), a first gear (520), a second gear (530) and a first rotating shaft (540), wherein the first motor (510) is fixedly connected to a fixed shell (120), the first gear (520) is located in the fixed shell (120) and connected to the output end of the first motor (510), the second gear (530) is meshed with the first gear (520), the first rotating shaft (540) is connected to the second gear (530), the first rotating shaft (540) is fixedly connected to a supporting platform (260), the first pull rod (210) is rotatably connected with a pressing plate (250) through a pressing rod (240), the pressing rod (240) is fixedly connected to one end of a clamping block (220) away from the first pull rod (210), the pressing plate (250) is rotatably connected to one end of the pressing rod (240) away from the clamping block (220), a rotating ring (241) is fixedly connected to the pressing rod (240), the pressing plate (250) is provided with a rotating groove (251), and the rotating ring (241) is rotatably connected to the rotating groove (251).
2. The soil sample preparation device for triaxial test according to claim 1, characterized by comprising a locking assembly (300), wherein the locking assembly (300) comprises a second pull rod (310) with an axis forming an included angle with the axis of the first pull rod (210), the second pull rod (310) is slidably connected with the mounting assembly (100), a second elastic member (330) is arranged between the second pull rod (310) and the mounting assembly (100), and one end of the second pull rod (310) is abutted against the first pull rod (210) under the elastic action of the second elastic member (330);
the clamping block (220) is arranged on the first pull rod (210), and one end of the second pull rod (310) is used for limiting the clamping block (220) in the axial direction of the first pull rod (210).
3. A soil sample preparation device for triaxial test according to claim 1, characterized in that the cutting assembly (600) is slidably connected to the positioning assembly (400), the cutting assembly (600) having a driving member (610) which is held relatively fixed to the positioning assembly (400), the cutting assembly (600) being slidably movable relative to the positioning assembly (400) under the driving of the driving member (610).
4. The soil sample preparation device for triaxial test according to claim 1, characterized in that the cutting assembly (600) comprises a mobile carriage (620), a first cutter (670), a second cutter (680) and a third gear (650);
the first cutting element (670) and the second cutting element (680) are respectively provided with a first rack part and a second rack part, the first cutting element (670) and the second cutting element (680) are respectively meshed with the third gear (650) through the first rack part and the second rack part, the first rack part and the second rack part are respectively positioned on two radial sides of the third gear (650), the first cutting element (670) and the second cutting element (680) are respectively connected with the movable frame (620) in a sliding mode, and the movable frame (620) is connected with the mounting assembly (100) in a sliding mode.
5. The device for preparing the triaxial test soil sample according to claim 4, wherein the first cutting member (670) and the second cutting member (680) are respectively provided with a sliding block (671), and the movable frame (620) is provided with a corresponding sliding groove (621).
6. The device for preparing the triaxial test soil sample according to claim 1, wherein the positioning assembly (400) comprises a positioning rod (410), the installation assembly (100) is provided with sliding grooves (621), and two ends of the positioning rod (410) are respectively sleeved in the two sliding grooves (621) to form sliding connection respectively.
7. A soil sample preparation device for triaxial test according to claim 1 or claim 2, characterized in that the first and second elastic members (230, 330) are coil springs or gas springs or rubber springs.
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