CN113029719B - Preparation device and method for rock-soil model test piece - Google Patents
Preparation device and method for rock-soil model test piece Download PDFInfo
- Publication number
- CN113029719B CN113029719B CN202110261504.9A CN202110261504A CN113029719B CN 113029719 B CN113029719 B CN 113029719B CN 202110261504 A CN202110261504 A CN 202110261504A CN 113029719 B CN113029719 B CN 113029719B
- Authority
- CN
- China
- Prior art keywords
- die
- test piece
- cylinder
- model test
- mold cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- 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
- G01N1/36—Embedding or analogous mounting of samples
-
- 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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a preparation device and a preparation method for a rock-soil model test piece, which comprises a mould cylinder, a hammering piece and a base, wherein the hammering piece can be inserted from a first end opening of the mould cylinder; the ejection mechanism comprises a top cover detachably fixed at the opening of the first end, an ejector rod penetrates through the top cover, and the ejector rod can be driven by the linear driving mechanism to extend into the mold cylinder and perform reciprocating linear motion along the central axis of the mold cylinder. The method can reduce the difficulty in preparing the rock-soil model test piece and improve the preparation quality of the test piece.
Description
Technical Field
The disclosure belongs to the technical field of geotechnical engineering, and particularly relates to a preparation device and method for a geotechnical model test piece.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
Model tests become one of important scientific research means in the field of geotechnical engineering, and whether good similar materials can be prepared in the model tests or not is judged, so that test pieces are manufactured, and the success or failure of the model tests is related. In order to find out a proper material mixing ratio, test pieces with different material mixing ratios are required to be prepared for various physical and mechanical property tests such as a compression strength test and the like.
The test piece is usually prepared by using quartz sand, calcium carbonate, iron powder, gypsum powder, barium sulfate and other materials as aggregates, cement, water glass, water and other materials as cementing agents, using silicon oil and other materials as regulators, mixing and stirring uniformly according to a certain proportion, filling the mixture into a test piece mold, tamping, demolding, curing at normal temperature, and then testing various mechanical properties.
The inventor knows that the existing columnar test piece mold usually adopts a form that two semi-cylindrical side walls are hooped by a cylinder hoop and then fixed on a bottom plate, the process of manufacturing the test piece by the mold in the form is complicated, particularly the cylinder hoop is difficult to take down in the demolding process, and the test piece is split into two halves due to the fact that cracks are easy to appear in the test piece in a knocking mode adopted for loosening the cylinder hoop.
Meanwhile, in the tamping process, the proportioning material with liquid property is easy to seep out along the gap between the semi-cylinders, so that the proportioning of similar materials is changed. In the process of separating the two die side walls, the similar material of the test piece is easy to adhere to the die side walls after being tamped, and the condition of the edge defect and cracking of the test piece is easy to occur during demoulding.
Disclosure of Invention
The present disclosure is directed to a device and a method for preparing a geotechnical model test piece, which can solve at least one of the above problems.
In order to achieve the above objects, one or more embodiments of the present disclosure provide a preparation apparatus for a geotechnical model test piece, including a mold cylinder, a hammering piece capable of being inserted from a first end opening of the mold cylinder, and a base detachably mounted at a second end opening; the ejection mechanism comprises a top cover detachably fixed at the opening of the first end, an ejector rod penetrates through the top cover, and the ejector rod can be driven by the linear driving mechanism to extend into the mold cylinder and perform reciprocating linear motion along the central axis of the mold cylinder.
As a further improvement, the mould cylinder is vertically arranged, the upper end opening of the mould cylinder is detachably provided with the top cover or the hammering piece, and the lower end opening is detachably provided with the base.
As a further improvement, one side of the ejector rod is provided with a row of teeth along the extension direction of the ejector rod, the top cover is fixed with the support frame, the support frame is rotationally connected with the gear, the gear is meshed with the teeth to drive the ejector rod to move, and the end face of the gear is fixed with a rotating rod which is used for driving the gear to move.
As a further improvement, the support frame is rotatably connected with a pulley, the pulley is arranged on one side of the ejector rod, which is far away from the gear, and the pulley is used for guiding the ejector rod during movement; when the ejector rod moves to the limit position in the direction away from the die cylinder, one end of the rotating rod, which is far away from the gear, extends towards one side of the pulley in an inclined mode, so that the downward pressure of the die cylinder can be provided by the power for pressing the rotating rod downwards.
As a further improvement, an external thread is arranged at an opening at the upper end of the die cylinder, and an internal thread meshed with the external thread is arranged in the top cover, so that the top cover and the die cylinder can be detachably fixed.
As a further improvement, the hammering piece comprises a pedestal and a hammer head which are fixed with each other, the cross section shape and size of the hammer head are matched with the cross section shape and size of the inner cavity of the die cylinder, and the pedestal is set to have the shape and size as follows: the pedestal can not extend into the inner cavity of the mold cylinder;
the die comprises a die barrel, a die head, a die barrel, a die head and a base, wherein the die barrel is provided with a die barrel cavity, the die barrel cavity is arranged in the die barrel, the die barrel cavity is provided with a die head, the die head is arranged in the die barrel cavity, and the die head is arranged in the die barrel cavity.
As a further improvement, the die cylinder is provided with a cylindrical inner cavity, an annular flexible plate is attached to the inner wall of the die cylinder and can be elastically deformed to change the size of the inner cavity, a semicircular guide groove which is narrow at the upper part and wide at the lower part is arranged on the side wall of the die cylinder, a semicircular pressing plate is arranged in the guide groove, and the semicircular pressing plate can be tightly pressed on one side of the annular flexible plate; install the wedge in the semicircle annular guide way, the wedge can compress tightly or relax semicircle annular pressure plate at vertical motion's in-process, and the wedge can be through drive assembly drive in order to realize up-and-down motion.
As a further improvement, drive assembly includes the push rod, and the one end and the wedge of push rod pass through universal head and are connected, and the other end of push rod can stretch out from the logical groove of mould section of thick bamboo lateral wall, leads to groove intercommunication semicircle annular guide way and external environment, and the other end of push rod has the spout, and the one end of bull stick has the screw hole, has locking bolt subassembly in the screw hole, and after locking bolt subassembly can pass screw hole and spout, the sliding connection of realization locking bolt subassembly and spout.
As a further improvement, the semicircular pressing plate, the annular flexible plate and the semicircular guide groove are the same in vertical height.
One or more embodiments of the present disclosure provide a method for preparing a geotechnical model test piece using the above-mentioned apparatus for preparing a geotechnical model test piece, comprising the steps of:
plugging the second end opening of the mold cylinder by using the base, and filling a sample material in the mold cylinder;
after the sample material is filled, tamping the sample material in the mold cylinder by using a hammering component, forming a test piece after the sample material is stably formed, and removing the base and the hammering piece;
the top cover, the ejector rod and the linear driving mechanism are installed at the first end opening of the die cylinder, and the ejector rod is driven by the linear driving mechanism to extend into the inner cavity of the die cylinder and release the test piece in a demoulding manner.
The beneficial effects of one or more technical schemes are as follows:
the mold barrel is integrated, so that the problem of leakage of liquid matching materials between the side walls in a conventional mold is effectively solved, and the matching accuracy of similar materials of a test piece is guaranteed.
The mode that adopts the ejector pin to release the test piece has avoided the crackle that the test piece is inside to produce when knocking the mould section of thick bamboo, has avoided the similar material of test piece to adhere the problem at the mould lateral wall after the tamping simultaneously, has guaranteed the integrality of test piece.
The adoption of the detachable hammering piece, the base and the ejection mechanism ensures that the processes of the compression molding of the test piece in the mold cylinder and the ejection mechanism pushing the test piece to be demolded do not influence each other, even if the condition that one ejection mechanism is adaptive to a plurality of mold cylinders and bases is realized, the quantity of the ejection mechanisms is reduced in the process of manufacturing the test pieces in batches, and the utilization efficiency of the ejection mechanisms is improved.
One side that adopts the ejector pin sets up the tooth, rotates the mode of installation gear on the support frame, utilizes the bull stick of fixing at gear end face department can drive the rotation of gear and then the vertical reciprocating linear motion of drive ejector pin, and at this in-process, the cooperation of bull stick and gear has utilized lever principle, can provide great holding down force in rack department, provides the sufficient pressure of test piece when the drawing of patterns.
Adopt when the ejector pin moves to extreme position towards keeping away from mould section of thick bamboo direction, the mode that one end slope that the bull stick deviates from the gear stretches out towards one side of pulley, for the mode that the bull stick stretches out towards one side of gear: when demoulding, the rotating rod is pressed downwards, the support frame is pressed downwards, and the top cover and the mould cylinder are pressed downwards; the demolding process can be realized without additionally fixing a mold cylinder.
The screw depth of the screw hole of the threaded section of the hammer head extending into the pedestal can be adjusted, so that the depth of the hammer head extending into the inner cavity of the die cylinder can be adjusted. When the test piece is manufactured, after the material is added into the die cavity, the proportion of tamping and compression of the material is convenient to adjust, and the test pieces with different mass densities are convenient to obtain.
The size of the die cylinder is adjustable by arranging the annular flexible plate, the semi-annular pressing plate, the semi-annular guide groove, the semi-annular pressing plate and the wedge block in the die cylinder, when the semi-annular pressing plate presses the annular flexible plate, a test piece is convenient to press, and the whole size deformation is in a preset range; when the semicircular annular pressing plate moves towards the position far away from the annular flexible plate, the annular flexible plate can be outwards expanded at the side position, the size of an inner cavity is convenient to increase, the frictional resistance between the annular flexible plate and a test piece is reduced, and the demoulding is convenient to realize.
The combination of the push rod, the universal head and the locking bolt assembly is adopted, the locking bolt assembly can be utilized to connect the rotating rod, the wedge block is synchronously pressed down in the process that the rotating rod presses down the ejector rod, the semicircular ring pressing plate can move towards the direction deviating from the annular flexible plate, the linkage of the semicircular ring pressing plate and the annular flexible plate is realized, and the wedge block can be driven to move without additionally providing power.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of the embodiment of the present disclosure when the rotating rods are disposed on the same side of the gear;
FIG. 2 is a schematic view of the overall structure of the embodiment of the present disclosure when the rotating rod is disposed on the other side of the gear;
FIG. 3 is a schematic structural view of a mold cylinder, a base, and a hammer in an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a top cover and a supporting frame according to an embodiment of the disclosure;
FIG. 5 is a schematic structural view of a pulley in an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a top rod and a top plate in the embodiment of the present disclosure;
FIG. 7 is a schematic view of the top cover, the mounting bracket, and the gears in the embodiment of the present disclosure;
FIG. 8 is a schematic structural view of a hammer element in an embodiment of the present disclosure;
FIG. 9 is a schematic structural view of portions of a die cylinder, a flexible clamping assembly, etc. in an embodiment of the present disclosure;
FIG. 10 is a schematic view of a die cylinder provided with a flexible clamping assembly in an embodiment of the present disclosure;
FIG. 11 is a schematic structural diagram of a semicircular annular pressure plate in an embodiment of the present disclosure.
1. A hammer; 2. a mold cylinder; 3. a base; 4. a gear; 5. a rotating rod; 6. a pulley; 7. a top cover;
8. a top rod; 9. a rotating shaft; 10. a support frame; 11. mounting holes; 12. a limiting hole; 13. a rack; 14. teeth; 15. a top plate; 16. a test piece; 17. an internal thread; 18. an external thread; 19. a shaft hole; 101. a pedestal; 102. a threaded segment; 103. a smooth section; 104. a screw hole;
20. a push rod; 21. a chute; 22. a locking bolt assembly; 23. a semicircular annular guide groove; 24. a wedge block; 25. a semi-circular pressing plate; 26. an annular flexible plate; 27. and a limiting bolt.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
For convenience of description, the words "up, down, left and right" in this disclosure, if any, merely indicate correspondence with the up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.
Example 1
As shown in fig. 1, the present embodiment provides a preparation apparatus for a geotechnical model test piece, which includes a mold cylinder 2, a hammering piece 1 capable of being inserted from a first end opening of the mold cylinder 2, and a base 3 detachably mounted at a second end opening.
It will be appreciated that in this embodiment the hammering members can rely on their own weight, or transmit external hammering forces to the untamped test piece.
It can be understood that the base and the mold cylinder in this embodiment are detachably connected, and in one of the connection modes, an external thread may be provided on the outer circumferential side of the base, and a threaded hole coaxial with the inner cavity of the mold cylinder is provided at the lower end of the mold cylinder, so that the base and the mold cylinder are fixed by the thread. In other embodiments, the two can be detachably fixed by using a hoop connection or the like, and the fixing can be set by a person skilled in the art, which is not described herein again.
This embodiment should still include ejection mechanism, and ejection mechanism wears to be equipped with ejector pin 8 including dismantling the top cap 7 of fixing at first end opening part in the top cap 7, and ejector pin 8 can stretch into in the mould section of thick bamboo 2 and be reciprocal linear motion along the central axis of a mould section of thick bamboo 2 under the drive of sharp actuating mechanism.
2 vertical settings of a mould section of thick bamboo, the upper end opening part demountable installation of a mould section of thick bamboo 2 top cap 7 or hammering piece 1, lower extreme opening part demountable installation have base 3.
In the embodiment, a rack and pinion mechanism is provided to provide the linear motion, specifically, one side of the top rod 8 has a row of teeth 14 along the extending direction of the top rod 8, so that the top rod part with the teeth can be regarded as a rack, the top cover 7 is fixed with the support frame 10, the support frame 10 is rotatably connected with the gear 4, the gear 4 is engaged with the teeth 14 to drive the motion of the top rod 8, the rotating rod 5 is fixed at the end surface of the gear 4, and the rotating rod 5 is used for driving the motion of the gear 4. A limiting hole can be formed in the center of the top cover, and the vertical displacement of the rack is limited by the limiting hole.
Set up the mounting hole on the support frame, set up the shaft hole respectively on gear and pulley, the pivot runs through shaft hole and mounting hole, and then realizes that pulley, gear and support frame's rotation are connected.
The supporting frame 10 is rotatably connected with a pulley 6, the pulley 6 is arranged on one side of the ejector rod 8, which is far away from the gear 4, and the pulley 6 is used for realizing the guiding of the ejector rod 8 during the movement; when the ejector pin 8 moves to the limit position in the direction away from the die cylinder 2, one end of the rotating rod 5, which is far away from the gear 4, extends obliquely towards one side of the pulley 6, so that the power for pressing down the rotating rod 5 can provide the downward pressure to the die cylinder 2.
In the embodiment, in order to realize the fixed connection between the mold cylinder and the top cover, an external thread 18 is provided at the upper end opening of the mold cylinder 2, and an internal thread 17 meshed with the external thread 18 is provided in the top cover 7 to realize the detachable fixation of the top cover 7 and the mold cylinder 2. It will be appreciated that in other embodiments, other attachment means may be used, such as a hoop attachment, or pin holes may be provided in the top cover and the side walls of the mold cylinder, and the top cover is sleeved over the upper end of the mold cylinder so that the pin holes in the two parts are aligned and a locating pin is inserted. The specific connection mode can be selected by those skilled in the art, and is not described in detail herein.
In this embodiment, the hammering piece 1 includes a pedestal 101 and a hammer head fixed to each other, the shape and size of the cross section of the hammer head are matched with the shape and size of the cross section of the inner cavity of the die cylinder 2, and the shape and size of the pedestal 101 are set as follows: the pedestal 101 cannot extend into the inner cavity of the mold cylinder 2; the pedestal 101 is provided with a screw hole 104, one end of the hammer head is provided with a threaded section 102, the threaded section 102 is in threaded connection with the screw hole 104, and the depth of screwing the threaded section 102 into the screw hole 104 is adjustable so as to adjust the depth of the hammer head extending into the inner cavity of the die cylinder 2.
It will be appreciated that the end of the hammer head remote from the abutment is smooth and not threaded. When used with a cylindrical die cylinder, the smooth section should be of cylindrical configuration. It can be understood that, if the die cylinder is a square cylinder, the smooth section is in a cuboid structural form, and in order to ensure the connection between the threaded section and the hammer head, the threaded section and the smooth section are in different structural forms.
In some embodiments, the mold cylinder 2 has a cylindrical inner cavity, an annular flexible plate 26 is attached to the inner wall of the mold cylinder 2, the annular flexible plate 26 can elastically deform to change the size of the inner cavity, a semicircular guide groove 23 with a narrow top and a wide bottom is arranged at the side wall of the mold cylinder 2, a semicircular pressing plate 25 is installed in the guide groove, and the semicircular pressing plate 25 can be pressed on one side of the annular flexible plate 26; install wedge block 24 in the semicircle annular guide way 23, wedge block 24 can compress tightly or loosen semicircle annular clamp plate 25 at vertical motion's in-process, and wedge block 24 can be through drive assembly drive in order to realize up-and-down motion. Drive assembly includes push rod 20, and push rod 20's one end is connected through universal head with wedge 24, and push rod 20's the other end can be followed the logical groove of 2 lateral walls of mould section of thick bamboo and stretched out, leads to groove intercommunication semicircle annular guide way 23 and external environment, and push rod 20's the other end has spout 21, and the one end of bull stick 5 has the screw hole, has locking bolt subassembly 22 in the screw hole, and behind locking bolt subassembly 22 can pass screw hole and spout 21, realize locking bolt subassembly 22 and spout 21's sliding connection. In order to realize the limiting of the wedge block, a bolt hole can be formed in the side wall of the die cylinder, a limiting bolt is arranged in the bolt hole, and the limiting bolt is utilized to realize the limiting when the wedge block moves downwards.
It can be understood that in the initial state, the annular flexible plate is in an uncompressed state, the wedge block is in a set position, the limiting bolt is used for stopping the downward movement of the wedge block, and at the moment, the semicircular pressure plate is just in contact with the annular flexible plate and does not provide pressure. After finishing the installation of base, fill the similar material of setting for the volume in the inner chamber that forms to annular flexible sheet, then utilize hammering piece tamp, at the in-process that hammering piece tamp, annular flexible sheet can take place certain shrinkage deformation under compression.
When the drawing of patterns is required, install ejection mechanism in a mould section of thick bamboo upper end, then lift the push rod, make the upper end of push rod be connected with the bull stick through locking bolt subassembly, universal head and spout are used for reducing size and angle error, make push rod and bull stick can link together, when the bull stick after the connection can provide the holding down force to the push rod, make bull stick and push rod can take place relative rotation, locking bolt subassembly can include a bolt and a nut, the size of the spiral shell head of bolt and nut all is greater than the width of spout, avoid bolt coupling assembling to lose efficacy.
Before pushing down the bull stick, need take out spacing bolt in advance to avoid influencing the motion of wedge, the effect of spout is, reduces the required precision of size processing, and when the bolt in the locking bolt subassembly reachd the spout lower extreme, the bull stick realized articulated effect with the push rod.
When the wedge moves down, the pressure of one side of the semicircular annular pressing plate close to the wedge is relaxed, and a displacement space is formed, so that the structure of the annular flexible plate at the position of the semicircular annular pressing plate can be synchronously expanded outwards, the pressure between the annular flexible plate and the test piece is reduced, the friction force is reduced, and the demolding is convenient to realize.
In some embodiments, the semicircular annular pressing plate 25, the annular flexible plate 26 and the semicircular annular guide groove 23 have the same vertical height, and the friction between the annular flexible plate and the test piece can be rapidly reduced by loosening the semicircular annular pressing plate. In other embodiments, the two may have a certain height difference for easy manufacturing.
Example 2
The embodiment provides a preparation method of a rock-soil model test piece, which utilizes the preparation device for the rock-soil model test piece and comprises the following steps:
coating lubricating oil on the inner side of the die cylinder, plugging a second end opening of the die cylinder 2 by using the base 3, and filling a sample material in the die cylinder 2;
after the sample material is filled, the sample material in the die cylinder 2 is tamped by using a hammering component until the size of the test piece meets the requirement. Forming a test piece 16 after the sample material is stably molded, and removing the base 3 and the hammering piece 1;
a top cover 7, an ejector rod 8 and a linear driving mechanism are installed at an opening at the first end of the mold cylinder 2, and the ejector rod 8 is driven by the linear driving mechanism to extend into an inner cavity of the mold cylinder 2 and to release the test piece 16 out of the mold.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (9)
1. A preparation device for a rock-soil model test piece is characterized by comprising a mold cylinder, a hammering piece and a base, wherein the hammering piece can be inserted from an opening at a first end of the mold cylinder, and the base is detachably arranged at an opening at a second end;
the ejection mechanism comprises a top cover detachably fixed at the opening of the first end, an ejector rod penetrates through the top cover, and the ejector rod can extend into the die cylinder and make reciprocating linear motion along the central axis of the die cylinder under the driving of the linear driving mechanism;
the die cylinder is provided with a cylindrical inner cavity, an annular flexible plate is attached to the inner wall of the die cylinder and can elastically deform to change the size of the inner cavity, a semicircular guide groove which is narrow at the upper part and wide at the lower part is formed in the side wall of the die cylinder, a semicircular pressing plate is installed in the guide groove and can be tightly pressed on one side of the annular flexible plate; install the wedge in the semicircle annular guide way, the wedge can compress tightly or relax semicircle annular pressure plate at vertical motion's in-process, and the wedge can be through drive assembly drive in order to realize up-and-down motion.
2. The device for preparing the geotechnical model test piece according to claim 1, wherein the mold cylinder is vertically arranged, the top cover or the hammering piece is detachably mounted at an upper opening of the mold cylinder, and the base is detachably mounted at a lower opening of the mold cylinder.
3. The rock-soil model test piece preparation device of claim 1 or 2, wherein one side of the ejector rod is provided with a row of teeth along the extension direction of the ejector rod, the top cover is fixed with the support frame, the support frame is rotationally connected with the gear, the gear is meshed with the teeth to drive the ejector rod to move, and a rotating rod is fixed on the end face of the gear and used for driving the gear to move.
4. The preparation device for the geotechnical model test piece according to claim 3, wherein the support frame is rotatably connected with a pulley, the pulley is installed on one side of the ejector rod, which is far away from the gear, and the pulley is used for guiding the ejector rod during movement;
when the ejector rod moves to the limit position in the direction away from the die cylinder, one end of the rotating rod, which is far away from the gear, extends towards one side of the pulley in an inclined mode, so that the downward pressure of the die cylinder can be provided by the power for pressing the rotating rod downwards.
5. The apparatus for preparing a geotechnical model test piece according to claim 1, wherein the upper opening of the mold cylinder is provided with external threads, and the top cap is provided with internal threads engaged with the external threads to detachably fix the top cap to the mold cylinder.
6. The apparatus for preparing a geotechnical model test piece according to claim 1, wherein said hammer member includes a pedestal and a hammer head fixed to each other, the shape and size of the cross section of the hammer head are adapted to the shape and size of the cross section of the inner cavity of the mold cylinder, and the shape and size of the pedestal are set to: the pedestal can not extend into the inner cavity of the mold cylinder;
the die comprises a die barrel, a die head, a die barrel, a die head and a base, wherein the die barrel is provided with a die barrel cavity, the die barrel cavity is arranged in the die barrel, the die barrel cavity is provided with a die head, the die head is arranged in the die barrel cavity, and the die head is arranged in the die barrel cavity.
7. The preparation device for the geotechnical model test piece according to claim 1, wherein the driving assembly comprises a push rod, one end of the push rod is connected with the wedge through a universal head, the other end of the push rod can extend out of a through groove in the side wall of the mold cylinder, the through groove is communicated with the semicircular guide groove and the external environment, the other end of the push rod is provided with a sliding groove, one end of the rotating rod is provided with a threaded hole, a locking bolt assembly is arranged in the threaded hole, and after the locking bolt assembly can penetrate through the threaded hole and the sliding groove, sliding connection between the locking bolt assembly and the sliding groove is achieved.
8. The apparatus for preparing a geotechnical model test piece according to claim 1, wherein the semi-circular pressure plate, the circular flexible plate and the semi-circular guide groove are vertically the same in height.
9. A method for preparing a geotechnical model test piece using the apparatus for preparing a geotechnical model test piece according to any one of claims 1 to 8, comprising the steps of:
plugging the second end opening of the mold cylinder by using the base, and filling a sample material in the mold cylinder;
after the sample material is filled, tamping the sample material in the mold cylinder by using a hammering component, forming a test piece after the sample material is stably formed, and removing the base and the hammering piece;
the top cover, the ejector rod and the linear driving mechanism are installed at the first end opening of the die cylinder, and the ejector rod is driven by the linear driving mechanism to extend into the inner cavity of the die cylinder and release the test piece in a demoulding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110261504.9A CN113029719B (en) | 2021-03-10 | 2021-03-10 | Preparation device and method for rock-soil model test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110261504.9A CN113029719B (en) | 2021-03-10 | 2021-03-10 | Preparation device and method for rock-soil model test piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113029719A CN113029719A (en) | 2021-06-25 |
| CN113029719B true CN113029719B (en) | 2022-03-25 |
Family
ID=76469645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110261504.9A Active CN113029719B (en) | 2021-03-10 | 2021-03-10 | Preparation device and method for rock-soil model test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113029719B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117774093B (en) * | 2024-02-26 | 2024-05-03 | 潍坊萨伯特精密转动设备有限公司 | Screw pump stator plaster model take-out device |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344601A (en) * | 1980-03-22 | 1982-08-17 | Klockner-Werke Ag | Mold apparatus with elastic clamping means |
| EP0103190A2 (en) * | 1982-08-18 | 1984-03-21 | Immunomed Corporation | Method and apparatus for producing a microscope specimen slide |
| JP2002333399A (en) * | 2001-05-10 | 2002-11-22 | Mitsubishi Heavy Ind Ltd | Stress corrosion cracking test piece and stress corrosion cracking test method |
| CN201327458Y (en) * | 2008-12-25 | 2009-10-14 | 宁波美生医疗器材有限公司 | Swing liquid device for preparing liquid-based thin-layer cell |
| CN105784442A (en) * | 2016-03-17 | 2016-07-20 | 哈尔滨工程大学 | Combined die for concrete sample and manual demoulding device |
| CN206321491U (en) * | 2016-12-22 | 2017-07-11 | 江苏四通路桥工程有限公司 | A kind of Vibration compaction machine |
| CN207095962U (en) * | 2017-08-10 | 2018-03-13 | 山东建筑大学 | Constraint loading device for the uniform surrouding rock stress simulation of cylinder anchorage model |
| CN207703575U (en) * | 2018-01-15 | 2018-08-07 | 深圳市土木检测有限公司 | A kind of compaction test apparatus |
| CN108859071A (en) * | 2017-05-09 | 2018-11-23 | 中国海洋大学 | A kind of composable mold and the method for preparing solid buoyancy material using it |
| CN109596400A (en) * | 2018-12-06 | 2019-04-09 | 江苏科技大学 | A kind of multi-functional stripper apparatus of three axis sample |
| CN109702968A (en) * | 2018-12-28 | 2019-05-03 | 深圳市凯中精密技术股份有限公司 | Inner slide block mechanism, connector device for removing scum and its method for demoulding |
| CN110118686A (en) * | 2019-06-11 | 2019-08-13 | 山东大学 | Prepare the push-press type column test mould and method of rock analog material easy mold release |
| CN110646273A (en) * | 2019-09-02 | 2020-01-03 | 山东大学 | Mold for preparing rock-soil model test specimen and preparation method |
| CN210180783U (en) * | 2019-05-27 | 2020-03-24 | 同济大学 | A test piece static pressure forming device for geotechnique triaxial compression test |
| WO2020127897A1 (en) * | 2018-12-20 | 2020-06-25 | Tecan Trading Ag | Tip cup |
| CN211205960U (en) * | 2019-12-02 | 2020-08-07 | 六盘水师范学院 | Ground test piece compaction device |
| CN211591176U (en) * | 2019-12-10 | 2020-09-29 | 烟台锐盛汽车模具有限公司 | Mold stripping inclined ejection mechanism applied to mold |
| CN211614314U (en) * | 2019-12-31 | 2020-10-02 | 四川居里高科技有限责任公司 | Die-casting die |
| CN111999155A (en) * | 2019-05-27 | 2020-11-27 | 同济大学 | A test piece static pressure forming device for geotechnique triaxial compression test |
| CN212301042U (en) * | 2020-05-06 | 2021-01-05 | 武汉工程大学 | A multi-functional system appearance device for preparing remold soil sample |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2950739C (en) * | 2014-05-30 | 2023-01-24 | Pressure Biosciences, Inc. | Sample preparation devices and methods |
| CN108801723B (en) * | 2017-05-03 | 2022-09-13 | 徕卡显微系统(上海)有限公司 | Clamping device and slicer with same |
| CN108956195B (en) * | 2018-05-22 | 2021-02-23 | 山东大学 | Sand body sampling device suitable for grouting model test and using method |
-
2021
- 2021-03-10 CN CN202110261504.9A patent/CN113029719B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344601A (en) * | 1980-03-22 | 1982-08-17 | Klockner-Werke Ag | Mold apparatus with elastic clamping means |
| EP0103190A2 (en) * | 1982-08-18 | 1984-03-21 | Immunomed Corporation | Method and apparatus for producing a microscope specimen slide |
| JP2002333399A (en) * | 2001-05-10 | 2002-11-22 | Mitsubishi Heavy Ind Ltd | Stress corrosion cracking test piece and stress corrosion cracking test method |
| CN201327458Y (en) * | 2008-12-25 | 2009-10-14 | 宁波美生医疗器材有限公司 | Swing liquid device for preparing liquid-based thin-layer cell |
| CN105784442A (en) * | 2016-03-17 | 2016-07-20 | 哈尔滨工程大学 | Combined die for concrete sample and manual demoulding device |
| CN206321491U (en) * | 2016-12-22 | 2017-07-11 | 江苏四通路桥工程有限公司 | A kind of Vibration compaction machine |
| CN108859071A (en) * | 2017-05-09 | 2018-11-23 | 中国海洋大学 | A kind of composable mold and the method for preparing solid buoyancy material using it |
| CN207095962U (en) * | 2017-08-10 | 2018-03-13 | 山东建筑大学 | Constraint loading device for the uniform surrouding rock stress simulation of cylinder anchorage model |
| CN207703575U (en) * | 2018-01-15 | 2018-08-07 | 深圳市土木检测有限公司 | A kind of compaction test apparatus |
| CN109596400A (en) * | 2018-12-06 | 2019-04-09 | 江苏科技大学 | A kind of multi-functional stripper apparatus of three axis sample |
| WO2020127897A1 (en) * | 2018-12-20 | 2020-06-25 | Tecan Trading Ag | Tip cup |
| CN109702968A (en) * | 2018-12-28 | 2019-05-03 | 深圳市凯中精密技术股份有限公司 | Inner slide block mechanism, connector device for removing scum and its method for demoulding |
| CN210180783U (en) * | 2019-05-27 | 2020-03-24 | 同济大学 | A test piece static pressure forming device for geotechnique triaxial compression test |
| CN111999155A (en) * | 2019-05-27 | 2020-11-27 | 同济大学 | A test piece static pressure forming device for geotechnique triaxial compression test |
| CN110118686A (en) * | 2019-06-11 | 2019-08-13 | 山东大学 | Prepare the push-press type column test mould and method of rock analog material easy mold release |
| CN110646273A (en) * | 2019-09-02 | 2020-01-03 | 山东大学 | Mold for preparing rock-soil model test specimen and preparation method |
| CN211205960U (en) * | 2019-12-02 | 2020-08-07 | 六盘水师范学院 | Ground test piece compaction device |
| CN211591176U (en) * | 2019-12-10 | 2020-09-29 | 烟台锐盛汽车模具有限公司 | Mold stripping inclined ejection mechanism applied to mold |
| CN211614314U (en) * | 2019-12-31 | 2020-10-02 | 四川居里高科技有限责任公司 | Die-casting die |
| CN212301042U (en) * | 2020-05-06 | 2021-01-05 | 武汉工程大学 | A multi-functional system appearance device for preparing remold soil sample |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113029719A (en) | 2021-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113029719B (en) | Preparation device and method for rock-soil model test piece | |
| US11938653B2 (en) | Powder dry-pressing molding device and method | |
| CN110514497B (en) | Axial pressure controllable rock-like sample rotating maintenance sample preparation device and sample preparation method | |
| CN104308957B (en) | A kind of concrete or the compressing apparatus and method of non-burning brick semidry method | |
| CN108106896A (en) | It is a kind of to operate easy sand hollow cylinder sample sample preparation device and its method for making sample | |
| CN112092148A (en) | Ceramic shaft core forming die | |
| CN113263586A (en) | Forming die of prefabricated reinforced concrete | |
| CN112265127A (en) | Preparation method of foam concrete heat-insulation building block | |
| CN108497011A (en) | A kind of millet cake embossing machine | |
| CN115847591B (en) | Brick making machine of high accuracy brickmaking | |
| CN104608091A (en) | Pressing and combining device for threaded nut and threaded rod | |
| CN115648548A (en) | Small adjustable gel preparation mould | |
| CN2318019Y (en) | Vibrative pipe making machine for spigot and faucet mouth cement pipe core mould | |
| CN111571805B (en) | Movable pouring equipment for tubular prefabricated parts | |
| CN211941424U (en) | Cement pipe manufacturing equipment | |
| CN209533721U (en) | A kind of concrete experimental block mould | |
| CN212826026U (en) | Adjustable production mold for prefabricated clear water concrete | |
| CN113776914A (en) | Integrated manufacturing device and manufacturing method for structural surface upper and lower disc test piece in stress environment | |
| CN110884019A (en) | Centrifugal device for producing tire by using polyurethane elastomer mold | |
| CN116296719B (en) | Concrete construction quality detects sampling device | |
| CN219213506U (en) | Make things convenient for concrete test block preparation mould of dismouting | |
| CN219028205U (en) | Mould convenient to drawing of patterns | |
| CN221021498U (en) | Cement and sand compaction table | |
| CN212123680U (en) | Filling body test piece drawing of patterns auxiliary device | |
| CN219706183U (en) | Cold press molding device for bonded grinding tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |