CN102788714B - Undisturbed soil sampler at field geological section - Google Patents
Undisturbed soil sampler at field geological section Download PDFInfo
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- CN102788714B CN102788714B CN201210279422.8A CN201210279422A CN102788714B CN 102788714 B CN102788714 B CN 102788714B CN 201210279422 A CN201210279422 A CN 201210279422A CN 102788714 B CN102788714 B CN 102788714B
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Abstract
The invention discloses an undisturbed soil sampler at the field geological section. The undisturbed soil sampler comprises a rack provided with positioning pins and guide sleeves, wherein a rotatable connecting rod penetrates through the rack; one end of the connecting rod is provided with a crank handle, and the other end of the connecting rod is provided with a first bevel gear; a second bevel gear which is meshed with the first bevel gear and is vertical to the first bevel gear is connected with the middle part of a lead screw by a spline; the lower part of the lead screw penetrates through a lead screw guider fixedly connected with the rack and is fixedly connected with a hollow drill, and the drill is internally provided with a piston; the lead screw guider is provided with internal threads, and the lower part of the lead screw is provided with threads matched with the internal threads; and a pushing lead screw with a handle is also connected with the upper part of the lead screw by the internal threads, and can extend into the drill to push the piston. The undisturbed soil sampler disclosed by the invention has the advantages that when in soil sampling, power is input by manually shaking one power input end of the crank handle, rotation and axial feeding and retreat movement of the drill are realized, and the change of the moving state is realized by providing forward and reverse torque, so that the sampling is convenient to carry out.
Description
Technical field
The invention belongs to the undisturbed soil technical field that fetches earth, relate to a kind of field geology section undisturbed soil soil sample barrel.
Background technology
Since modern age, soil mechanics proposed principle of effective stress from nineteen twenty-three K.Terzaghi, obtain significant progress.1963, Roscoe proposed famous Cambridge model for reshaped clay and has pushed the research of soil mechanics to new climax, had also opened the gate of Modern Soil Mechanics research simultaneously.The Emergence and Development of soil mechanics, is actually on the basis that is based upon test, and solid foundation has been established in the theoretical research that especially early stage shop experiment is follow-up soil mechanics.
Very necessary in order to obtain the real mechanics index of physics of the soil body, to carry out in-situ test.But consider the reason of the aspect such as economy, technology, and intrinsic broken and scattered property, heterogeneity, the variability of the soil body, attempt to adopt in-situ test to disclose this structure of soil body characteristic completely, be impossible substantially.Research field obtains the instrument of undisturbed soil sample, reduces as much as possible the disturbance to undisturbed soil, still has very important theory significance and realistic meaning.
The current existing instrument overwhelming majority is all to utilize boring and coring technology to obtain undisturbed soil on earth's surface, but these means often need to expend a large amount of human and material resources, financial resources.In actual geology fact-finding process, often can run into natural or artificial geological section, if the geologic unit that can have free face at these obtains undisturbed soil, can greatly alleviate workload.But, on geological section, fetch earth at present, generally adopt the instruments such as hoe, spade, cutter on geological section, to take a hexahedron.In order to reduce the disturbance to undisturbed soil, must hexahedral left, right-hand, above, rear excavates enough width, and rear due to buried in the soil body, cause workplace narrow, general tool is difficult to finish the work, significantly excavation also easily causes avalanche, causes very large potential safety hazard to field man.
Summary of the invention
The problem that the present invention solves is to provide a kind of field geology section undisturbed soil soil sample barrel, shake wind by manpower axial power and drilling tool rotary rotating force are provided, and shake positive and negative the transferring of wind by manpower forward and reverse moment of torsion and xial feed are provided, realize the change of drilling tool motion state and the taking-up of undisturbed soil, be particularly useful for the operation in field.
The present invention is achieved through the following technical solutions:
A kind of field geology section undisturbed soil soil sample barrel, comprises the frame that is provided with register pin and orienting sleeve, and rotatable connecting rod, through frame, is provided with wind in one end of connecting rod, and the other end is provided with the first bevel gear; Be meshed with the first bevel gear and orthogonal the second bevel gear is connected with leading screw by spline; Leading screw is fixedly connected with the drilling tool of hollow through the leading screw guides being fixedly connected with frame, is provided with piston in drilling tool; Leading screw guides is provided with internal thread, and leading screw is provided with the screw thread matching with it; Leading screw also offers tapped through hole, and the propulsion lead screw with handle is also connected with leading screw by internal thread, and propulsion lead screw can stretch in drilling tool and promote piston by swivel feeding.
Further, drill rod is connected with orienting sleeve by register pin.
Described orienting sleeve comprises fixed guide cover and adjusting orienting sleeve, and fixed guide cover is fixedly connected by connecting rod and frame; Regulate orienting sleeve to rotate around the lateral shaft of frame.
Frame is by two drill rods that laterally hammer into soil profile that are connected with two fixed guide covers respectively, and a drill rod with regulating orienting sleeve to be connected of longitudinally squeezing into ground is fixed.
The termination of described drilling tool is provided with zigzag cutting edge.
The second described bevel gear is provided with female spline, and leading screw is provided with male splines.
Further, while boring soil sampling, wind forward rotation, drive the second bevel gear forward rotation by the first bevel gear, the second bevel gear drives leading screw forward rotation, leading screw drives drilling tool forward rotation relative frame to rotate circumgyration incision soil, and the undisturbed soil of cutting is compressed to (drilling tool and undisturbed soil soil sample are together taken out) in drilling tool;
Wind rotates backward again, drives the second bevel gear to rotate backward by the first bevel gear, and the second bevel gear drives leading screw and drilling tool to rotate backward, and drilling tool carries that undisturbed soil rotates and the frame disengaging soil that moves upward relatively.
When described brill soil samples, take off propulsion lead screw, after drilling tool disengaging soil (drilling tool and undisturbed soil soil sample are together taken out), propulsion lead screw is screwed in leading screw inner bolt hole, rotary handle, and propulsion lead screw enters in drilling tool, promotes piston undisturbed soil is released to drilling tool.
Leading screw is provided with the male splines matching with the second bevel gear, and the external thread matching with leading screw guides is arranged on male splines.
Compared with prior art, the present invention has following useful technique effect:
Field geology section undisturbed soil soil sample barrel provided by the invention, when soil sampling, shake power intake input power of wind by manpower in the wild, realize the rotation of drilling tool and axial feeding setback with this, and by positive reactive torque is provided, realize the change of motion state:
Bore when sampling soil, wind forward rotation, drives the second bevel gear forward rotation by the first bevel gear, and the second bevel gear drives leading screw to rotate by spline joint, thereby and after leading screw rotation, move downward by the internal thread of leading screw guides; Because leading screw is fixedly connected with drilling tool, so leading screw drives drilling tool drilling tool forward rotation relative frame to rotate circumgyration incision soil, the undisturbed soil cutting in being rotated down cutting compresses, so that drilling tool is carried taking-up;
Accordingly, wind rotates backward again, drives the second bevel gear to rotate backward by the first bevel gear, and the second bevel gear drives leading screw and drilling tool to rotate backward again, the second bevel gear by spline joint drive leading screw rotate, thereby and leading screw rotate after move upward by the internal thread of leading screw guides; Drilling tool carry that undisturbed soil rotates backward and relatively frame move upward, field geology section undisturbed soil soil sample barrel and soil sample are together taken out;
Then rotate propulsion lead screw by manpower, propulsion lead screw rotates into leading screw inside, and gos deep in drilling tool, promotes piston undisturbed soil is released from drilling tool, completes the course of work of undisturbed soil sampling.
Field geology section undisturbed soil soil sample barrel provided by the invention, fix instrument by two horizontal drill rods (being connected with fixed guide cover) and a drill rod that is parallel to vertical plane and can rotate around the lateral shaft perpendicular to vertical plane (being connected with regulating orienting sleeve), be convenient to adapt to field landform, prevent its vibration.And drill rod is connected with orienting sleeve by register pin, while work, drill rod can remove, and is easy to carry.
Field geology section undisturbed soil soil sample barrel provided by the invention, leading screw has according to function setting: internal thread, male splines, external thread, be respectively used to connect propulsion lead screw, the second bevel gear, leading screw guides; External thread and male splines are distributed on whole leading screw axial length, adding man-hour: first tapping is at milling male splines, the layout so male splines overlaps with external thread, wherein male splines is connected with the female spline of the second bevel gear, just drives leading screw to rotate like this in the time that the second bevel gear is rotated; And because leading screw is to be connected with leading screw guides by the mode of screw thread, so just forward, reverse rotation can be changed into axial downwards, move upward, axially take out after so just having realized feeding cutting and cutting; After taking-up, the top of the through hole of offering due to lead screw hole is provided with internal thread, and propulsion lead screw just can rotate and be advanced in drilling tool, promotes piston, takes out soil sample.
Field geology section undisturbed soil soil sample barrel provided by the invention, uses simply, and technical feature is better, is convenient to maintaining, and its cost performance is high; Can be widely used in Geotechnical Engineering scientific research, teaching practice and production field, can solve preferably field geology section undisturbed soil Sampling, undisturbed soil sampling technological level is high, thereby obtain comparatively real mechanics index of physics, to meet the needs of preparing undisturbed soil in Geotechnical Engineering test, can significantly alleviate field the workload of obtaining undisturbed soil.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is dextrad structural representation of the present invention;
Fig. 3 is bevel gear of the present invention contact site enlarged drawing.
Wherein, 1 is drill rod, and 2 is leading screw, and 3 is propulsion lead screw, and 4 is orienting sleeve, and 5 is register pin, and 6 is frame, and 7 is wind, and 8 is the first bevel gear, and 9 is the second bevel gear, and 10 is leading screw guides, and 11 is piston, and 12 is drilling tool, and 13 is cutting edge.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
Referring to Fig. 1~Fig. 3, a kind of field geology section undisturbed soil soil sample barrel, comprises the frame 6 that is provided with register pin 5 and orienting sleeve 4, and rotatable connecting rod, through frame 6, is provided with wind 7 in one end of connecting rod, and the other end is provided with the first bevel gear 8; Be meshed with the first bevel gear 8 and orthogonal the second bevel gear 9 is connected with leading screw 2 by spline; The bottom of leading screw 2 is fixedly connected with the drilling tool 12 of hollow through the leading screw guides 10 being fixedly connected with frame 6, is provided with piston 11 in drilling tool 12; Leading screw guides 10 is provided with internal thread, and leading screw 2 is provided with the screw thread matching with it; Leading screw 2 also offers tapped through hole, and the propulsion lead screw 3 with handle is also connected with leading screw 2 by internal thread, and propulsion lead screw 3 can stretch in drilling tool 12 and promote piston 11 by swivel feeding.
In the time carrying out frame fixing, two drill rods that laterally hammer in soil profile are connected with two fixed guide covers respectively, and a drill rod longitudinally squeezing into ground is connected with regulating orienting sleeve.Regulating orienting sleeve to rotate around the lateral shaft of frame is in order can better to adapt to field landform, to be convenient to retainer instrument on the spot.Frame is just by two drill rods that laterally hammer into soil profile that are connected with two fixed guide covers respectively like this, and a drill rod with regulating orienting sleeve to be connected of longitudinally squeezing into ground is fixed.
The termination of described drilling tool 12 is provided with zigzag cutting edge 13, so that the cutting of drilling tool is fetched earth.
Described leading screw 2 is hollow, and leading screw has according to function setting: internal thread, male splines, external thread, be respectively used to connect propulsion lead screw, the second bevel gear, leading screw guides; External thread and male splines are distributed on whole leading screw axial length, are adding man-hour: first tapping is at milling male splines, the layout so male splines overlaps with external thread.Wherein male splines is connected with the female spline of the second bevel gear, just drives leading screw to rotate like this in the time that the second bevel gear is rotated; And because leading screw is to be connected with leading screw guides by the mode of screw thread, so just forward, reverse rotation can be changed into axial downwards, move upward, axially take out after so just having realized feeding cutting and cutting; After taking-up, because the top of lead screw hole is provided with internal thread, propulsion lead screw just can rotate and be advanced in drilling tool, promotes piston, takes out soil sample.
So, while boring soil sampling, wind forward rotation, drive the second bevel gear forward rotation by the first bevel gear, the second bevel gear drives leading screw forward rotation, and leading screw drives drilling tool forward rotation relative frame to be rotated down cutting soil, and the undisturbed soil of cutting is compressed in drilling tool;
Wind rotates backward again, drives the second bevel gear to rotate backward by the first bevel gear, and the second bevel gear drives leading screw and drilling tool to rotate backward, and drilling tool carries that undisturbed soil rotates and the frame disengaging soil that moves upward relatively.
And bore when sampling soil, and taking off propulsion lead screw, after drilling tool departs from soil, propulsion lead screw is screwed in leading screw inner bolt hole, rotary handle, propulsion lead screw enters in drilling tool, promotes piston undisturbed soil is released to drilling tool.
Operation while using field geology section undisturbed soil soil sample barrel to sample undisturbed soil, specifically comprises the following steps as follows:
1) near a field geology section fetches earth position, excavate surface dust with hoe, expose fresh soil profile.Above section fetches earth position, excavate a horizontal elongated slot with certain altitude.
2) two horizontal drill rods are hammered in soil profile, two drill rods that laterally hammer in soil profile are fixedly connected with two fixed guide covers respectively, again according to actual landform, a drill rod is squeezed into ground downwards, a drill rod longitudinally squeezing into ground is fixedly connected with regulating orienting sleeve, thereby frame is fixed.
3) shake wind (such as clockwise shake), rotates drilling tool and moves downward, and completes drilling process.According to actual formation situation, forward and reverse shake wind repeatedly creeps into drilling tool and retreats if desired, thereby ensures to obtain good undisturbed soil.
4) shake wind in the other direction, make drilling tool opposite spin and move upward, take out the drilling tool with undisturbed soil.
5) propulsion lead screw with handle is screwed into leading screw, rotation propulsion lead screw, promotes piston undisturbed soil is released, and can obtain cylindric undisturbed soil.
Claims (9)
1. a field geology section undisturbed soil soil sample barrel, it is characterized in that, comprise the frame (6) that is provided with register pin (5) and orienting sleeve (4), rotatable connecting rod is through frame (6), be provided with wind (7) in one end of connecting rod, the other end is provided with the first bevel gear (8); Be meshed with the first bevel gear (8) and orthogonal the second bevel gear (9) is connected with leading screw (2) by spline; Leading screw (2) is fixedly connected with the drilling tool (12) of hollow through the leading screw guides (10) being fixedly connected with frame (6), is provided with piston (11) in drilling tool (12); Leading screw guides (10) is provided with internal thread, and leading screw (2) is provided with the screw thread matching with it; Leading screw (2) also offers tapped through hole, and the propulsion lead screw (3) with handle is also connected with leading screw (2) by internal thread, and propulsion lead screw (3) can stretch in drilling tool (12) and promote piston (11) by swivel feeding.
2. field geology section undisturbed soil soil sample barrel as claimed in claim 1, is characterized in that, drill rod (1) is connected with orienting sleeve (4) by register pin (5).
3. field geology section undisturbed soil soil sample barrel as claimed in claim 1, is characterized in that, described orienting sleeve (4) comprises fixed guide cover and adjusting orienting sleeve, and fixed guide cover is fixedly connected with frame; Regulate orienting sleeve to rotate around the lateral shaft of frame.
4. field geology section undisturbed soil soil sample barrel as claimed in claim 3, it is characterized in that, frame (6) is by two drill rods that laterally hammer into soil profile that are connected with two fixed guide covers respectively, and a drill rod with regulating orienting sleeve to be connected of longitudinally squeezing into ground is fixed.
5. field geology section undisturbed soil soil sample barrel as claimed in claim 1, is characterized in that, the termination of described drilling tool (12) is provided with zigzag cutting edge (13).
6. field geology section undisturbed soil soil sample barrel as claimed in claim 1, is characterized in that, described the second bevel gear (9) is provided with female spline, and leading screw (2) is provided with male splines.
7. field geology section undisturbed soil soil sample barrel as claimed in claim 1, it is characterized in that, while boring soil sampling, wind (7) forward rotation, drive the second bevel gear (9) forward rotation by the first bevel gear (8), the second bevel gear (9) drives leading screw (2) forward rotation, and leading screw (2) drives drilling tool (12) forward rotation relative frame (6) to be rotated down cutting soil, and the undisturbed soil of cutting is compressed in drilling tool (12);
Wind (7) rotates backward again, drive the second bevel gear (9) to rotate backward by the first bevel gear (8), the second bevel gear (9) drives leading screw (2) and drilling tool (12) to rotate backward, drilling tool (12) carries that undisturbed soil rotates and relative frame moves upward disengaging soil.
8. field geology section undisturbed soil soil sample barrel as claimed in claim 7, it is characterized in that, when described brill soil samples, take off propulsion lead screw (3), after drilling tool departs from soil, propulsion lead screw (3) is screwed in leading screw (2), rotary handle, propulsion lead screw (3) enters in drilling tool, promotes piston undisturbed soil is released to drilling tool.
9. field geology section undisturbed soil soil sample barrel as claimed in claim 1, is characterized in that, described leading screw is provided with the male splines matching with the second bevel gear (9), and the external thread matching with leading screw guides (10) is arranged on male splines.
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CN201210279422.8A CN102788714B (en) | 2012-08-08 | 2012-08-08 | Undisturbed soil sampler at field geological section |
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CN201210279422.8A CN102788714B (en) | 2012-08-08 | 2012-08-08 | Undisturbed soil sampler at field geological section |
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