CN112461623A - Test device and method capable of preparing multiple test pieces in batch - Google Patents
Test device and method capable of preparing multiple test pieces in batch Download PDFInfo
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- CN112461623A CN112461623A CN202011268627.7A CN202011268627A CN112461623A CN 112461623 A CN112461623 A CN 112461623A CN 202011268627 A CN202011268627 A CN 202011268627A CN 112461623 A CN112461623 A CN 112461623A
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- 238000000034 method Methods 0.000 title abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 100
- 238000007723 die pressing method Methods 0.000 claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 239000002689 soil Substances 0.000 claims abstract description 17
- 239000011435 rock Substances 0.000 claims abstract description 11
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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
- 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
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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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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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Abstract
The invention discloses a test device and a method capable of preparing a plurality of test pieces in batches, which solve the problems that test pieces are manually manufactured and only test pieces with single size can be manufactured in the prior art, have the advantages of convenient operation and realization of simultaneous manufacture of test pieces with different sizes, and have the following specific schemes: a test device capable of preparing a plurality of test pieces in batches comprises a support frame, wherein the support frame supports a plurality of die pressing devices, a detachable test piece preparation mold is arranged below the die pressing devices, and the distance between the bottom ends of the die pressing devices and the test piece preparation mold is adjustable; the test piece preparation mould is provided with a plurality of holes for filling rock and soil mass, and at least one of the die pressing device and the test piece preparation mould can realize reciprocating linear motion relative to the other one, so that the die pressing device is conveyed into the holes of the test piece preparation mould.
Description
Technical Field
The invention relates to the field of geotechnical tests, in particular to a test device and a method capable of preparing a plurality of test pieces in batches.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the increasing demand of human activities on space, the exploration of high altitude and underground is required continuously, especially the exploration of underground space, and the theoretical and technical requirements on geotechnical engineering are continuously improved. In order to better solve the problems of geotechnical engineering, prevent and control disasters, investigation and test, test and analysis are firstly carried out, and theories and methods such as soil mechanics, rock mechanics and the like are utilized to carry out systematic research on various engineering. Therefore, the geotechnical engineering mechanical test is the early stage engineering of geotechnical engineering planning design and disaster prevention, and is also an essential important link of foundation and foundation design and the like.
In order to better understand the physical and mechanical properties of rock-soil materials, experts along the way design many indoor tests such as uniaxial compression strength and deformation test, triaxial compression strength and phase change test, tensile strength test, direct shear strength test, point load test and the like, which are detailed in engineering rock mass test method standard GB/50266-99, rock physical and mechanical property test specification DZ/T0276.1-2015, road geotechnical test specification JTG E40-2007, foundation load test specification and the like. In order to improve the scientificity of the test and reduce accidental factors, a large amount of test data is required for supporting, so that the demand of standard mechanical test pieces is increasing. Therefore, the design of the test mold becomes the key for manufacturing the standard mechanical test piece.
In order to realize the research, most of the molds for producing the standard mechanical test pieces are manually extruded at present, the working efficiency is low, and the inventor also finds that each mold can only produce the standard mechanical test piece with a single modulus, the standard mechanical test pieces with full modulus can not be produced in batch, and the applicability of the mold produced by traditional manual production is limited.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the test device capable of preparing a plurality of test pieces in batches, which can prepare a plurality of same or different standard mechanical test pieces simultaneously, has high manufacturing efficiency and convenient operation, meets the production of full-modulus test pieces and provides requirements for more test schemes.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a test device capable of preparing a plurality of test pieces in batches comprises a support frame, wherein the support frame supports a plurality of die-pressing devices, a test piece preparation mold which can be disassembled and assembled is arranged below the die-pressing devices, and the distance between the bottom ends of the die-pressing devices and the test piece preparation mold is adjustable; the test piece preparation mould is provided with a plurality of holes for filling rock and soil mass, and at least one of the die pressing device and the test piece preparation mould can realize reciprocating linear motion relative to the other one, so that the die pressing device is conveyed into the holes of the test piece preparation mould.
According to the test device, the die pressing devices are matched with the holes of the test piece preparation mold, so that the test piece can be manufactured, and a plurality of test pieces can be simultaneously prepared through the matching of the plurality of die pressing devices and the test piece preparation mold, so that the manufacturing efficiency is improved; meanwhile, the distance of the die pressing device relative to the test piece preparation die is adjustable, so that test pieces with different heights can be simultaneously prepared, standard mechanical rock-soil test pieces with different height sizes can be produced in batches, and standard mechanical test pieces with full modulus specifications can be produced by one-step preparation.
According to the test device capable of preparing a plurality of test pieces in batches, the support frame comprises the bottom plate for supporting the test piece preparation mold, and the test piece preparation mold is detachably arranged relative to the bottom plate, so that the prepared test pieces can be conveniently taken out of the test piece preparation mold.
According to the test device capable of preparing a plurality of test pieces in batches, the test pieces can be conveniently manufactured, and the test pieces can be conveniently taken out of the test piece preparation mold, wherein the test piece preparation mold comprises at least two mold single bodies, and the plurality of mold single bodies are detachably connected through the locking pieces;
and at least one side surface of each mould monomer is provided with an open slot which can be matched with the adjacent mould monomer, so that the two adjacent mould monomers form a hole for filling rock and soil mass through the open slot.
According to the test device capable of preparing a plurality of test pieces in batches, in order to facilitate the installation of the test piece preparation mold on the base plate, the surface of the base plate is provided with the guide rail, the test piece preparation mold is provided with the sliding groove matched with the guide rail, and the guide rail can be a T-shaped guide rail.
In the test apparatus for mass production of a plurality of test pieces as described above, the support frame is provided with the top plate disposed opposite to the bottom plate, the top plate is provided with the opening, the stamper insertion opening is disposed and the stamper is movable relative to the opening.
According to the test device capable of preparing a plurality of test pieces in batches, a plurality of clamping grooves are formed along the height direction of the die assembly, and the pins are inserted into the clamping grooves of the two rows of die assemblies on the upper side and the lower side of the top plate and are used for fixing the die assemblies relative to the top plate.
The testing device capable of preparing a plurality of test pieces in batches is characterized in that the size of the lower half section of the die press is larger than that of the upper half section, the shape of the opening of the top plate is matched with that of the upper half section of the die press, and the shape of the lower half section is matched with that of the hole.
According to the test device capable of preparing a plurality of test pieces in batches, the power mechanism is arranged between the bottom plate and the top plate, the telescopic parts are arranged on the peripheral sides of the top plate and the bottom plate, the power mechanism drives one of the top plate and the bottom plate to move relative to the other, and the telescopic parts drive the top plate or the bottom plate to return.
According to the test device capable of preparing the plurality of test pieces in batches, the power mechanism is a lifting pulley system arranged on the side portion of the support frame, the lifting pulley system comprises a plurality of lower pulleys arranged on the side portion of the bottom plate, a plurality of upper pulleys are arranged on the side portion of the top plate, the upper pulleys correspond to the lower pulleys in position one to one, steel strands are arranged between the upper pulleys and the lower pulleys, and the lower pulleys are connected with the power equipment.
In a second aspect, the invention also discloses a testing method of the testing device capable of preparing a plurality of test pieces in batches, which comprises the following steps:
assembling a detachable test piece preparation mold, and fixing the test piece preparation mold on a support frame;
filling rock-soil mass into the hole of the test piece preparation mold;
installing the die pressing devices through the supporting frame, and adjusting the distance between each die pressing device and the test piece preparation die;
moving at least one of the die pressing device and the test piece preparation mould, sending the die pressing device into the hole of the test piece preparation mould to press the test piece, and keeping the set time;
and after the time is set, the die pressing device is moved out of the hole of the test piece preparation die, the test piece preparation die is disassembled, and the test piece is manufactured.
The beneficial effects of the invention are as follows:
1) according to the invention, the die-pressing devices are matched with the holes of the test piece preparation mold through the test device, so that the test piece can be manufactured, the preparation of a plurality of test pieces can be simultaneously carried out through the matching of a plurality of die-pressing devices and the test piece preparation mold, the standard mechanical rock and soil test pieces with different height sizes can be produced in batches, and the manufacturing efficiency is improved; meanwhile, the distance between the die pressing device and the test piece preparation die is adjustable, and the full-modulus standard mechanical test piece can be produced by one-time manufacture.
2) According to the invention, the test piece preparation mold which is detachable is convenient for taking out the test piece after the test piece is manufactured; the test piece preparation mold is detachably mounted relative to the bottom plate, so that the test piece can be taken out conveniently after being manufactured; through the cooperation form of self-clinching bolt and guide rail promptly, both guaranteed the stability of mould, improved the convenience of mould again.
3) According to the invention, through the arrangement of the plurality of die formers, different heights of different die formers relative to the test piece preparation die can be set, and the preparation of test pieces with different heights is facilitated; the die pressing device is fixed on the support frame through the bolt device, so that the die pressing device can be arranged at different heights;
and the die pressing device is provided with a plurality of clamping grooves along the height direction of the die pressing device, so that the specification of each standard mechanical test piece can be freely adjusted, indoor standard test samples are diversified, and the requirements of more test pile test piece sizes are met.
4) According to the invention, the top plate can be driven to move relative to the bottom plate through the arrangement of the power mechanism, so that the die pressing device is fed into the hole of the test piece preparation die, and the manufacture of the test piece is ensured; through the setting of telescopic part, can drive the moulding-die ware and carry out the return after the test piece suppression is accomplished.
5) According to the invention, through the arrangement of the test piece preparation mold, the die pressing device and the pin device, the whole structure is convenient to assemble and disassemble, and the production efficiency of processing the standard mechanical test piece can be effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic illustration of a test apparatus according to one or more embodiments of the present disclosure that allows for the batch preparation of multiple test pieces.
FIG. 2 is a schematic diagram of a test piece preparation mold in a testing apparatus capable of batch preparing a plurality of test pieces according to one or more embodiments of the present disclosure.
FIG. 3 is a schematic diagram of a die set-up in a testing apparatus capable of batch manufacturing a plurality of test pieces according to one or more embodiments of the present disclosure.
FIG. 4 is a schematic diagram of an arrangement of an array of stamper, according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a second mold monomer in a test device for batch fabrication of multiple test pieces according to one or more embodiments of the present disclosure.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1a top plate, 1b bottom plate;
2a first mold monomer, 2b a second mold monomer, 2c a third mold monomer;
3, a die pressing device; 4, a bolt device; 5, a telescopic cylinder; 6, a motor; 7a upper pulley, 7b lower pulley; 8, steel strand wires; 9 bearing; 10a bolt, 10b nut; 11 a guide rail; 12 chute.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. 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 invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the 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 invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the prior art has a problem that only a single modulus standard mechanical test piece can be manufactured, and in order to solve the technical problem, the invention provides a test device capable of preparing a plurality of test pieces in batches.
In an exemplary embodiment of the present invention, referring to fig. 1, a test apparatus for mass production of a plurality of test pieces includes a support frame supporting a die assembly 3, a test piece preparation mold detachably provided below the die assembly 3, and at least one of the die assembly and the test piece preparation mold capable of reciprocating linearly with respect to the other so as to feed the die assembly into the test piece preparation mold.
The test piece preparation mould is provided with a plurality of holes, such as 4 multiplied by 4 holes with diameter of 50mm, the holes are used for filling rock and soil mass, and the size of the holes is matched with that of the die press.
Further, the test piece preparation mould includes the polylith mould monomer, can be two, three or more, and two adjacent mould monomers can dismantle the connection in the polylith mould monomer, specifically can connect through retaining member such as bolt 10a nut 10b, and certainly can also dismantle the connection through other modes.
In this embodiment, the test piece preparation mold includes five mold monomers, as shown in fig. 2 and 5, a plurality of open grooves are formed in one side of each of a first mold monomer 2a and a third mold monomer 2c on the outer side, three second mold monomers 2b on the inner side, a plurality of open grooves are formed in both sides of the three second mold monomers, and the open grooves of the first mold monomer and the open grooves of one side of the second mold monomer are matched to form a first row of holes; similarly, after the three second die monomers are assembled, holes in a second row and a third row are formed; and the opening groove at one side of the last second mould monomer is matched with the opening groove at the other side of the third mould monomer to form a fourth row of holes.
The open grooves are arranged along the height direction of each die body, 4 holes can be arranged in each row, and the holes can be cylindrical holes, so that 16 standard mechanical test pieces can be prepared simultaneously.
Of course, in other examples, the sizes of the open grooves on the two sides of the second die single body can be different, so that the standard mechanical test pieces with different diameters can be manufactured.
In order to realize the detachable connection of the test piece preparation mold, the mold unit is provided with an opening, and a locking member such as a bolt 10a of a self-tightening bolt sequentially passes through the first mold unit, the second mold unit and the third mold unit and then is fixed by a nut 10 b.
Each mould monomer respectively sets up two trompils in the both sides of upside or middle section for the bolt passes the setting, and the trompil can be the screw hole.
In some examples, in order to facilitate installation of the test piece preparation mold, the bottom of the support frame is provided with a bottom plate 1b, the top of the bottom plate supports the test piece preparation mold, the bottoms of two mold monomers in the test piece preparation mold are provided with sliding grooves 12, the upper surface of the bottom plate is provided with two guide rails 11 capable of being matched with the sliding grooves, and the installation of the support frame can be realized through the guide rails 11; because the test piece preparation mould only receives vertical load, does not have horizontal load and vibrations, so the whole of test piece preparation mould and the bottom plate that can dismantle equipment pass through the spout to be connected, convenient to detach and equipment.
It is easy to understand that the setting position of the die pressing device corresponds to the position of the hole of the test piece preparation mold up and down, namely the die pressing device is positioned above the hole of the test piece preparation mold, and the preparation of the mechanical test pieces with different lengths and standards can be realized through the difference of the number and the height positions of the die pressing devices.
The support frame sets up roof 1a in the top of test piece preparation mould, and the roof has a plurality of openings, through opening installation die clamper 3, along the direction of height of die clamper, sets up a plurality of draw-in grooves, and the draw-in groove sets up along the length direction of die clamper, through draw-in groove installation bolt ware 4, can set up along the draw-in groove of one row of die clamper in the top bolt ware 4 of roof, carries on spacingly by the roof to the position that sets up of bolt ware.
In addition, it should be noted that the distance between two adjacent clamping grooves is the same as the thickness of the top plate, so that the pins are arranged on the upper side and the lower side of the top plate through the clamping grooves, and the stability of the die pressing device in the test piece pressing process is guaranteed.
The die pressing device is a steel product with adjustable pressing height, and is shown in reference to fig. 3 and 4, the section of the upper half section of the die pressing device is rectangular, the opening formed in the top plate is also rectangular, and the lower half section of the die pressing device is a steel cylinder with the diameter of 50mm, so that the die pressing device can conveniently enter a hole of a test piece preparation die to press and form a rock and soil mass.
The die-pressing device is matched with the bolt device for use, in some examples, three specifications are provided, the height difference of each specification is 50mm, the pressing height of the die-pressing device is set to be the key for pressing a standard mechanical test piece, the power mechanism drives the top plate to move relative to the test piece preparation mold, the longest modulus pressing height of the die-pressing device can be up to 100mm of the bottom plate, the middle modulus pressing height of the die-pressing device is up to 150mm of the bottom plate, and the shortest modulus pressing height of the die-pressing device is up to 200mm of.
In this embodiment, the power mechanism may drive the top plate and the die press to move up and down relative to the test piece preparation mold, and when the top plate and the die press move down to allow the die press to enter the hole of the test piece preparation mold, the preparation of the standard mechanical test piece is achieved.
Specifically, power unit is the lift pulley system of locating the support frame lateral part, lift pulley system is including locating a plurality of lower pulleys 7b of bottom plate lateral part, the roof lateral part sets up a plurality of upper pulleys 7a, upper pulleys and lower pulley position one-to-one, and set up steel strand wires 8 between upper pulleys and the lower pulley, wherein the lower pulley is connected with motor or other power equipment, the motor drives the lower pulley and rotates, thereby tighten up the steel strand wires, drive the roof through the upper pulleys and prepare the mould uniform motion to the test piece, thereby carry out the preparation of mould.
The motor 6 is arranged below the bottom plate and drives the first transmission shaft to rotate through the gear transmission component, the two ends of the first transmission shaft are respectively provided with a lower pulley 7b, and the other second transmission shaft provided with the lower pulley and the first transmission shaft are driven to rotate through the gear transmission component; and first transmission shaft and second transmission shaft are fixed in the below of bottom plate through bearing 9 respectively, and the motor provides power, and is energy-concerving and environment-protective.
In order to realize pushing down the completion back, the automatic re-setting of roof, the week side of support frame sets up scalable part, specifically telescopic cylinder 5, telescopic cylinder sets up 4 departments, be located four angles departments of support frame respectively, telescopic cylinder is the set post promptly, sealed set post is connected from top to bottom by interior outer tube and constitutes, interior sleeve pipe is connected with the roof, the outer tube bottom is connected with the bottom plate, interior sleeve pipe sets up the damping, and the compressible gas of set amount of the inside seal of set post, make roof and moulding-die ware can't push down under the dead weight effect when not having the motor acting, the motor acting makes the roof drive the moulding-die ware and pushes down.
The flexible end and the roof of telescopic cylinder 5 are connected, and the stiff end is fixed with the bottom plate, and the compressible gas of setting for volume is sealed in the telescopic cylinder promptly, and during the motor acting, drive roof downstream, and then make telescopic cylinder push down, compressed gas makes the roof reset through gas expansion after the uninstallation.
Of course, it should be noted that, in other examples, the top plate may be kept at the set position, and the power mechanism drives the bottom plate to move relative to the top plate; or the power mechanism respectively drives the top plate and the bottom plate to realize relative motion.
In addition, the test piece preparation mold is made of a polypropylene material which is a transparent plastic material, so that the test piece preparation mold is environment-friendly, easy to process and not easy to deform; the top plate and the bottom plate are made of steel, so that the overall stability of the testing device is improved.
Specifically, the step of preparing the standard mechanical test piece by using the test device capable of preparing a plurality of test pieces in batches comprises the following steps:
connecting the detachably assembled test piece preparation molds into a whole through the two locking pieces, and then fixing the detachably assembled test piece preparation molds to the bottom plate through the guide rail to complete the assembly of the detachably assembled test piece preparation molds;
filling rock and soil bodies required to be pressed into standard mechanical test pieces into a test piece preparation mold which can be disassembled and assembled, wherein the standard mechanical test pieces with different moduli are filled with different amounts of materials, and recording the materials to correspond to the die formers;
assembling die formers with different moduli according to the records, wherein the die formers are fixed on the top plate through a bolt;
the lifting pulley system works, and meanwhile, timing work is done, so that the die pressing device is pressed down to a set height and kept for a set time;
after the set time, closing the lifting pulley system, and waiting for the expansion of the compressed gas of the telescopic cylinder to reset the die pressing device;
after the die pressing device is reset, opening the self-tightening bolt, then detaching the die monomer, and taking down the standard mechanical test piece;
and (5) storing, cleaning and tidying the test mould for the standard mechanical test piece.
Example one
Can make 4 diameter 50mm, the height is 100mm, 4 diameter 50mm, height 150mm, 8 diameter 50mm, the standard mechanics test piece of 200mm, the specific operation is:
1) referring to fig. 2, the detachably assembled test piece preparation molds are first connected into a whole by using self-tightening bolts, and then the detachably assembled test piece preparation molds are fixed on the base plate by the guide rails, so that the assembly of the base plate is completed.
2) Filling rock-soil mass, and filling specified amount of rock-soil mass into the hole of the test piece preparation mould which can be disassembled and assembled according to the requirement.
3) Assembling a top plate, fixing a die pressing device on the top plate through a bolt device, arranging the die pressing devices according to the number of the standard mechanical test pieces with different modulus required at the moment, so that the die pressing devices extend to the lower part of the top plate at different distances, and can produce 4 standard mechanical test pieces with the diameter of 50mm, the height of 100mm, 4 standard mechanical test pieces with the diameter of 50mm, the height of 150mm, 8 standard mechanical test pieces with the diameter of 50mm and 200mm according to the mode shown in figure 1 (the arrangement mode can be changed at will, is not unique, and only needs to meet the requirement).
4) And starting the motor to drive the lower pulley 7b to rotate, tightening the steel strand, further pressing the die pressing device to the set height at a constant speed, keeping for 30 seconds, turning off the power supply, and expanding gas in the telescopic cylinder to reset the die pressing device.
5) Open the self-tightening bolt, at first take off the first mould monomer and the third mould monomer in the outside, and then take off 8 standard mechanics test pieces in the outside, then take off the second mould monomer for the bottom plate, take off middle demountable assembly's second mould monomer, and then take off middle 8 standard mechanics test pieces.
6) And cleaning the wiping die-pressing device and the detachably assembled test piece preparation die, and arranging the die-pressing device and the detachably assembled test piece preparation die to prepare for next production.
Example two
The method is used for manufacturing 16 standard mechanical test pieces with the diameter of 50mm and the height of 150mm, and comprises the following specific operations:
1) referring to fig. 2, the detachably assembled test piece preparation molds are first connected into a whole using self-tightening bolts, and then the detachably assembled test piece preparation molds are fixed to the base plate by means of the slide rails, thereby completing the assembly of the base plate.
2) Filling rock-soil mass, and filling specified amount of rock-soil mass into the cavity of the test piece preparation mould which can be assembled detachably according to requirements.
3) Assembling a top plate, fixing the die pressing device on the top plate through a bolt device, arranging die pressing device modules according to the number of mechanical test pieces with different module standards required at the moment, and manufacturing 16 standard mechanical test pieces with the diameter of 50mm and the height of 150mm (see the arrangement mode of the die pressing device in figure 3 (the arrangement mode can be changed at will, is not unique, and only needs to meet the requirement).
4) And starting the motor to drive the lower pulley to rotate, tightening the steel strand, further pressing the die pressing device to a set height at a constant speed, keeping for 30 seconds, turning off the power supply, and expanding gas in the telescopic cylinder to reset the die pressing device.
5) Open the self-tightening bolt, at first take off the first mould monomer and the third mould monomer in the outside, and then take off 8 standard mechanics test pieces in the outside, then take off the second mould monomer for the bottom plate, take off middle demountable assembly's second mould monomer, and then take off middle 8 standard mechanics test pieces.
6) And cleaning the wiping die-pressing device and the detachably assembled test piece preparation die, and arranging the die-pressing device and the detachably assembled test piece preparation die to prepare for next production.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A test device capable of preparing a plurality of test pieces in batches is characterized by comprising a support frame, wherein the support frame supports a plurality of die-pressing devices, a detachable test piece preparation mold is arranged below the die-pressing devices, and the distance between the bottom ends of the die-pressing devices and the test piece preparation mold is adjustable; the test piece preparation mould is provided with a plurality of holes for filling rock and soil mass, and at least one of the die pressing device and the test piece preparation mould can realize reciprocating linear motion relative to the other one, so that the die pressing device is conveyed into the holes of the test piece preparation mould.
2. The testing device for batch preparation of multiple test pieces according to claim 1, wherein the supporting frame comprises a base plate for supporting the test piece preparation mold, and the test piece preparation mold is detachably arranged relative to the base plate.
3. The test device capable of batch preparation of a plurality of test pieces according to claim 1, wherein the test piece preparation mold comprises at least two mold units, and the plurality of mold units are detachably connected through a locking member;
and at least one side surface of each mould monomer is provided with an open slot which can be matched with the adjacent mould monomer.
4. The testing device for batch preparation of multiple test pieces according to claim 2, wherein the surface of the base plate is provided with a guide rail, and the test piece preparation mold is provided with a sliding groove matched with the guide rail.
5. The testing apparatus for mass production of a plurality of test pieces according to claim 2, wherein said supporting frame is provided with a top plate disposed opposite to said bottom plate, said top plate is provided with an opening, said press-molding device is inserted into the opening and the press-molding device is movable relative to the opening.
6. The testing apparatus for mass production of a plurality of test pieces according to claim 5, wherein a plurality of engaging grooves are provided along the height direction of the press mold, and the pins are inserted into the engaging grooves of the two rows of the press mold on the upper and lower sides of the top plate.
7. The testing apparatus for batch production of a plurality of test pieces according to claim 5, wherein the lower half of the press mold has a size larger than that of the upper half, and the opening of the top plate has a shape matching the shape of the upper half of the press mold; the shape of the lower half section is matched with that of the hole.
8. The testing device as claimed in claim 1, wherein a power mechanism is disposed between the bottom plate and the top plate, and the top plate and the bottom plate are provided with retractable members on the periphery thereof.
9. The testing device for batch preparation of multiple test pieces according to claim 8, wherein the power mechanism is a lifting pulley system disposed on a side of the supporting frame, the lifting pulley system comprises a plurality of lower pulleys disposed on a side of the bottom plate, a plurality of upper pulleys are disposed on a side of the top plate, the upper pulleys correspond to the lower pulleys in position one-to-one, and steel strands are disposed between the upper pulleys and the lower pulleys, wherein the lower pulleys are connected to the power device.
10. The testing method of a testing apparatus capable of mass-producing a plurality of test pieces according to any one of claims 1 to 9, characterized by comprising:
assembling a detachable test piece preparation mold, and fixing the test piece preparation mold on a support frame;
filling rock-soil mass into the hole of the test piece preparation mold;
installing the die pressing devices through the supporting frame, and adjusting the distance between each die pressing device and the test piece preparation die;
moving at least one of the die pressing device and the test piece preparation mould, sending the die pressing device into the hole of the test piece preparation mould to press the test piece, and keeping the set time;
and after the time is set, the die pressing device is moved out of the hole of the test piece preparation die, the test piece preparation die is disassembled, and the test piece is manufactured.
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| CN202011268627.7A CN112461623A (en) | 2020-11-13 | 2020-11-13 | Test device and method capable of preparing multiple test pieces in batch |
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| CN202011268627.7A CN112461623A (en) | 2020-11-13 | 2020-11-13 | Test device and method capable of preparing multiple test pieces in batch |
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| CN112461623A true CN112461623A (en) | 2021-03-09 |
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