CN113049353A - Inorganic binder stable material sample forming device based on density method - Google Patents
Inorganic binder stable material sample forming device based on density method Download PDFInfo
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- CN113049353A CN113049353A CN202110211393.0A CN202110211393A CN113049353A CN 113049353 A CN113049353 A CN 113049353A CN 202110211393 A CN202110211393 A CN 202110211393A CN 113049353 A CN113049353 A CN 113049353A
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- compaction
- electric hammer
- inorganic binder
- cushion block
- fixing
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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
- 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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a density method-based inorganic binder stable material sample forming device, and relates to the technical field of road test instruments; including fixing device and compaction device, the compaction device includes the electric hammer, and the tup of electric hammer is downward, and the compaction cushion is installed to the lower extreme of tup, and the below of compaction cushion is provided with compaction cushion assorted compaction mould, is equipped with the lower cushion that can separate in the compaction mould, and fixing device is used for carrying out the centre gripping to electric hammer and compaction mould fixed, and under the electric hammer effect, the tup can be reciprocal hammering inorganic binder stabilized material in the compaction mould. The device has the characteristics of high compaction efficiency, good effect, low requirement on the area of a test site, low cost, high flexibility, simple and convenient operation, low working strength and the like, and can be widely applied to preparation of stable material samples of the inorganic binder of the semi-rigid base layer of the highway engineering.
Description
Technical Field
The invention relates to the technical field of road test instruments, in particular to a forming device for inorganic binder stable material samples based on a density method.
Background
The preparation of the inorganic binder stable material sample is the premise of measuring various performances of the inorganic binder stable material sample, the prior method mainly comprises a compaction method and a static pressure method, the compaction method adopts a manual compaction or compaction instrument, the compaction efficiency is low, a compaction hammer can crush partial crushed stones on the surface in the compaction process, the water content distribution of the upper part and the lower part of a formed test piece is uneven, the surface flatness is lower, and certain errors are caused to subsequent tests; the static pressure method adopts a pressure testing machine, so that the operation is complex, the area of a test place is required to be large, the cost of instrument equipment is high, the compaction place of a test piece is fixed along with the fixation of an instrument, the flexibility is lacked, the test piece is difficult to carry when a large cuboid test piece is compacted, and the working strength is high.
Disclosure of Invention
The present invention has been made in view of the problems in the background art. The invention aims to provide a sample forming device for an inorganic binder stable material, which has low requirement on the area of a test site and low cost.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an inorganic binder stabilized material sample forming device based on density method, including fixing device and compaction device, the compaction device includes the electric hammer, the tup of electric hammer is downward, the compaction cushion is installed to the lower extreme of tup, the below of compaction cushion is provided with compaction cushion assorted compaction mould, be equipped with the lower cushion that can separate in the compaction mould, fixing device is used for carrying out the centre gripping fixedly to electric hammer and compaction mould, under the electric hammer effect, the inorganic binder stabilized material in the tup can reciprocal hammering compaction mould.
Further, the output power of the electric hammer is greater than or equal to 800W.
Further, fixing device includes firm frame and two solid fixed splint, and firm frame is including solid bucket circle, four cylinder steel columns and circular arc roof-rack, the electric hammer is fixed by the solid fixed splint centre gripping, and four cylinder steel columns run through the four corners of solid fixed splint, and the upper and lower both ends of four cylinder steel columns link to each other with the four corners of circular arc roof-rack and solid bucket circle respectively.
Further, the fixed splint comprise two splint bodies which are arranged oppositely, the inner side of each splint body is provided with a semicircular groove, the left side and the right side of each semicircular groove are provided with fastening portions, the corners of the splint bodies are provided with through holes for the cylindrical steel columns to pass through, and the fastening portions of the two splint bodies are connected through bolts.
Further, the number of the fixed splint is two, and the fixed splint of difference is first fixed splint and second, the lower part of electric hammer is by the centre gripping of second fixed splint, and upper portion is by the centre gripping of first fixed splint. 5
Further, the compaction cushion block is a cylinder compaction cushion block, a cylinder compaction cushion block with a cushion cap or a cuboid compaction cushion block with a cushion cap, the compaction mold is a cylinder compaction barrel or a cuboid compaction mold, and the lower cushion block is a cylinder lower cushion block or a cuboid lower cushion block.
Furthermore, the barrel fixing ring comprises a rectangular plate with a circular hole in the center, and four small holes with threads in the middle are formed in the middle of the four sides of the rectangular plate and used for placing barrel fixing ring fastening bolts.
Compared with the prior art, the invention has the following beneficial effects.
The method has the advantages of high compaction efficiency, good effect, low requirement on the area of a test site, low cost, high flexibility, simple and convenient operation, low working strength and the like, and can be widely applied to preparation of stable material samples of the inorganic binder of the semi-rigid base layer of the highway engineering.
Drawings
Fig. 1 is an overall configuration diagram of a sample molding apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a compaction apparatus according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a fixing device according to an embodiment of the invention.
FIG. 4 is a schematic diagram of a cylindrical cap with a compaction pad according to an embodiment of the invention.
FIG. 5 is a schematic diagram of a cylindrical compaction pad according to an embodiment of the invention.
FIG. 6 is a schematic structural diagram of a cuboid capped compact spacer according to an embodiment of the invention.
Fig. 7 is a schematic structural view of a fixing splint according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a cylindrical lower cushion block, a rectangular parallelepiped compacting mold, and a rectangular parallelepiped lower cushion block according to an embodiment of the present invention.
In the figure, 1-electric hammer, 2-hammer head, 3-cylindrical compacted cushion block, 4-cylindrical compacted cushion block with a cushion cap, 5-cylindrical compacted barrel, 6-cylindrical lower cushion block, 7-cuboid compacted cushion block with a cushion cap, 8-cuboid compacted mold, 9-cuboid lower cushion block, 10-stabilizing frame, 11-barrel-fixing ring, 12-cylindrical steel column, 13-arc top frame, 14-fixing splint, 16-fastening part, 17-fixing splint fastening bolt, 18-barrel-fixing ring fastening bolt, 19-semicircular groove, 20-through hole, 141-first fixing splint, 142-second fixing splint.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, the device for forming an inorganic binder stabilizing material sample based on a density method comprises a fixing device and a compacting device, wherein the compacting device comprises an electric hammer 1, a hammer head 2 of the electric hammer 1 faces downwards, a compacting cushion block is installed at the lower end of the hammer head 2, a compacting mold matched with the compacting cushion block is arranged below the compacting cushion block, a lower cushion block capable of being separated is arranged in the compacting mold, the fixing device is used for clamping and fixing the electric hammer 1 and the compacting mold, and the hammer head 2 can reciprocally hammer the inorganic binder stabilizing material in the compacting mold under the action of the electric hammer 1.
Specifically, the output power of the electric hammer 1 is more than or equal to 800W, the electric hammer drives a piston to compress air in a cylinder in a reciprocating manner through an internal transmission mechanism, so that a hammer in the cylinder is driven to hammer inorganic binder stable materials in a reciprocating manner, and power is provided in the compaction process. The length of a hammer head 2 of the electric hammer is 15cm, the diameter of the hammer head is 2cm, the upper end of the hammer head is connected with a chuck of the electric hammer, the hammer head is prevented from sliding after being safely locked, and a bolt is welded at the lower end of the hammer head 2 and can be bolted with a nut welded at the upper end of a compaction cushion block.
Fixing device includes firm frame 10 and two solid fixed splint 14, and firm frame 10 is including solid bucket circle 11, four cylinder steel columns 12 and circular arc roof-rack 13, and electric hammer 1 is fixed by the 14 centre grippings of solid fixed splint, and four cylinder steel columns 12 run through four angles of solid fixed splint 14, and the upper and lower both ends of four cylinder steel columns 12 link to each other with circular arc roof-rack 13 and the four corners of solid bucket circle 11 respectively. The function of the arc top frame 13 is to ensure the stability of the cylindrical steel column 12 and to reserve a space right above the cylindrical steel column for the manual operation of the electric hammer.
Referring to fig. 7, the fixing splint 14 includes two splint bodies that are arranged oppositely, a semicircular groove 19 is opened on the inner side of the splint body, fastening portions 16 are provided on the left and right sides of the semicircular groove 19, through holes 20 for the cylindrical steel column 12 to pass through are provided at the corners of the splint body, and the fastening portions 16 of the two splint bodies are connected through bolts.
The number of the fixing clips 14 is two, and is a first fixing clip 141 and a second fixing clip 142. The first fixing splint 141 and the second fixing splint 142 have the same shape, and a semicircular groove 19 having the same diameter as the circumference of the body of the electric hammer 1 is dug out from one side of a splint body having a length of 50cm, a width of 25cm and a thickness of 1.5cm, so that the splint body is attached to the other splint body and wraps the electric hammer. The lower portion of the electric hammer 1 is held by the second fixing clamp 142, and the upper portion is held by the first fixing clamp 141. Therefore, the electric hammer can not displace on the horizontal plane and can only vertically slide up and down. After the electric hammer 1, the hammer head 2 and the compaction cushion block are assembled, the electric hammer 1, the hammer head 2 and the compaction cushion block are fixed on the stabilizing frame 10 through the two fixing clamping plates, a compaction die is arranged at the lower part of the compaction cushion block, and the electric hammer 1, the hammer head 2, the cushion block and the compaction die are positioned on one axis.
The barrel fixing ring 11 comprises a rectangular plate with a circular hole in the center, and four small holes with threads in the middle are formed in the middle of four sides of the rectangular plate and used for placing barrel fixing ring fastening bolts 18.
Example one
Referring to fig. 4, 5 and 8, the compaction cushion block is a cylindrical compaction cushion block 3 or a cylindrical compaction cushion block 4 with a cushion cap, the compaction mold is a cylindrical compaction barrel 5, and the lower cushion block is a cylindrical lower cushion block 6. The thickness of cylinder compaction cushion 3 and cylinder area cap compaction cushion 4 is 4cm, and cylinder compaction cushion 3 and cylinder area cap compaction cushion 4 upper end all weld have with 2 lower extreme bolts supporting nuts of tup, with 2 bolt joints of tup during the use, can dismantle when not using.
The diameter of the cylindrical compaction cushion block 3 is 10cm, a cylindrical groove with the diameter of 7cm and the height of 2cm is formed in the top surface of the cylindrical compaction cushion block, a matched nut is welded on the groove, and in addition, a plurality of small holes are drilled in the cylindrical compaction cushion block, so that air in the mold can be smoothly discharged in the compaction process.
The cylindrical compaction cushion block 4 with the cushion cap is formed by bolting a cylindrical cushion cap with the diameter of 12cm and the thickness of 2cm on the cylindrical compaction cushion block 3, and then welding a matched nut on the cylindrical compaction cushion block. The function of the pad cap is to judge the compaction stop time when the last layer of compaction is carried out, and the compaction is stopped when the pad cap is contacted with the compaction mould. In addition, a plurality of small exhaust holes are distributed on the cylindrical compaction cushion block 4 with the cushion cap.
The height of the cylindrical compaction barrel 5 is 18cm, the inner diameter is 10cm, the outer diameter is 12cm, and the cylindrical compaction barrel fixes the barrel fixing ring 11 on the stabilizing frame through a matched barrel fixing ring fastening bolt. The fixed barrel ring 11 is a 50cm by 5cm cushion block, round holes with the diameter of 20cm and the height of 2cm are dug in the middle, the size of the round holes needs to be capable of accommodating the cylindrical compaction barrel 5 to be placed in, and different types of cylindrical compaction barrels 5 can be fixed. The middle parts of four side surfaces of the barrel fixing ring 11 are provided with holes.
Example two
Referring to fig. 6 and 8, the compaction cushion block is a cuboid compaction cushion block 7 with a cushion cap, the compaction mould is a cuboid compaction mould 8, and the lower cushion block is a cuboid lower cushion block 9. The cuboid sample is only used for manufacturing the compaction cushion block 7 with the pad cap, the specific structure is similar to that of the cylindrical compaction cushion block 4 with the pad cap, the size is 40cm x 10cm x 5cm, and the pad cap with the pad cap 7 is bolted with 48cm x 18cm x 2 cm.
The cuboid compaction mould 8 is composed of four detachable steel plates with the thickness of 4cm, and is connected through bolts to form a cuboid with the internal dimension of 10cm by 20cm by 40 cm. The cuboid lower cushion block 9 is matched with the cuboid compaction mould 8, and a plurality of small exhaust holes are also distributed on the cuboid compaction cushion block 7 with the cushion cap.
The invention also provides a sample forming method, which can be used for compacting a cylindrical test piece and compacting a cuboid test piece. The method comprises the following steps:
before the first step of preparation of a cylindrical test piece, the stabilizing frame 10 is placed on the horizontal ground, then the cylindrical compaction barrel 5 is placed in the barrel fixing ring, and the barrel fixing ring 11 is screwed by using an inner hexagonal wrench after the cylindrical lower cushion block 6 is placed, so that the cylindrical compaction barrel is fixed in the barrel fixing ring and does not displace in any direction.
And fixing the electric hammer in the second step, as shown in fig. 1, fixing the first fixing clamp plate 141 and the second fixing clamp plate 142 in a staggered sliding method to fix the positions, so that the first fixing clamp plate 141 is located at the middle position of the two handles of the 1-electric hammer, the second fixing clamp plate 142 is located at the joint of the hammer head at the front end of the electric hammer, and then the fixing clamp plate fastening bolt 17 is screwed down by using an inner hexagonal wrench, so that the electric hammer is fixed on a stabilizing frame, horizontal displacement does not occur, and only vertical displacement occurs.
And thirdly, assembling a compaction system, installing the rear end of a hammer head 2 on an electric hammer, connecting a cylindrical compaction cushion block 3 at the front end, calculating the mass required by a formed sample under the maximum dry density, uniformly dividing into three parts, adding one part of the three parts into the cylindrical compaction barrel, inserting the cylindrical compaction cushion block 3 into the cylindrical compaction barrel 5, starting compaction after the electric hammer is electrified, stopping the vertical downward movement without visual inspection, stopping the vertical compaction without change by measuring with a vernier caliper, compacting the second layer and the third layer by the same method after roughening, paying attention to the fact that the cylindrical compaction cushion block 3 needs to be replaced by a cylindrical compaction cushion cap 4 when compacting the third layer, and finally stopping compaction when a cushion cap of the cylindrical compaction cushion cap 4 contacts with the cylindrical compaction barrel 5.
The preparation method of the rectangular test piece is the same as that of the cylindrical test piece, except that: the dead weight of the rectangular compaction mould 8 is far greater than that of the cylindrical compaction barrel 5, so the position of the rectangular compaction mould is not required to be fixed; the front two layers of the rectangular blocks are compacted gradually by adopting a cylindrical compaction cushion block 3 and a half-block pressing method, the third layer of the rectangular blocks is compacted by adopting a rectangular block-capped compaction cushion block 7, and the final compaction is finished by adopting a method of directly compacting the rectangular block-capped compaction cushion block 7 by adopting the cylindrical compaction cushion block 3.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered in the protection scope of the present invention.
Claims (7)
1. The utility model provides an inorganic binder stabilized material sample forming device based on density method which characterized in that: including fixing device and compaction device, the compaction device includes electric hammer (1), tup (2) of electric hammer (1) are downward, the compaction cushion is installed to the lower extreme of tup (2), the below of compaction cushion is provided with compaction cushion assorted compaction mould, be equipped with the lower cushion that can separate in the compaction mould, fixing device is used for carrying out the centre gripping to electric hammer (1) and compaction mould fixed, under electric hammer (1) effect, inorganic binder stabilizing material in tup (2) the reciprocal hammering compaction mould.
2. The device for forming the inorganic binder stable material sample based on the density method as claimed in claim 1, wherein: the output power of the electric hammer (1) is more than or equal to 800W.
3. The device for forming the inorganic binder stable material sample based on the density method as claimed in claim 1, wherein: the fixing device comprises a fixing frame (10) and two fixing clamping plates (14), the fixing frame (10) comprises a fixed barrel ring (11), four cylindrical steel columns (12) and an arc top frame (13), the electric hammer (1) is clamped and fixed by the fixing clamping plates (14), the four cylindrical steel columns (12) penetrate through four corners of the fixing clamping plates (14), and the upper end and the lower end of each cylindrical steel column (12) are connected with the arc top frame (13) and the four corners of the fixed barrel ring (11) respectively.
4. The device for forming the inorganic binder stable material sample based on the density method as claimed in claim 1, wherein: the fixing clamp plate (14) comprises two clamp plate bodies which are oppositely arranged, a semicircular groove (19) is formed in the inner side of each clamp plate body, fastening portions (16) are arranged on the left side and the right side of each semicircular groove (19), through holes (20) used for the cylindrical steel columns (12) to penetrate through are formed in the corners of each clamp plate body, and the fastening portions (16) of the two clamp plate bodies are connected through bolts.
5. The device for forming the inorganic binder stable material sample based on the density method as claimed in claim 4, wherein: the number of the fixed clamping plates (14) is two, namely a first fixed clamping plate (141) and a second fixed clamping plate (142), the lower part of the electric hammer (1) is clamped by the second fixed clamping plate (142), and the upper part of the electric hammer is clamped by the first fixed clamping plate (141).
6. The device for forming the inorganic binder stable material sample based on the density method as claimed in claim 1, wherein: the compaction cushion block is one of a cylindrical compaction cushion block (3), a cylindrical pad cap compaction cushion block (4) or a cuboid pad cap compaction cushion block (7), the compaction mould is a cylindrical compaction barrel (5) or a cuboid compaction mould (8), and the lower cushion block is a cylindrical lower cushion block (6) or a cuboid lower cushion block (9).
7. The device for forming the inorganic binder stable material sample based on the density method as claimed in claim 3, wherein: the barrel fixing ring (11) comprises a rectangular plate with a circular hole in the center, and four small holes with threads in the middle are formed in the middle of the four sides of the rectangular plate and used for placing barrel fixing ring fastening bolts (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110211393.0A CN113049353A (en) | 2021-02-25 | 2021-02-25 | Inorganic binder stable material sample forming device based on density method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110211393.0A CN113049353A (en) | 2021-02-25 | 2021-02-25 | Inorganic binder stable material sample forming device based on density method |
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| CN113049353A true CN113049353A (en) | 2021-06-29 |
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| CN202110211393.0A Pending CN113049353A (en) | 2021-02-25 | 2021-02-25 | Inorganic binder stable material sample forming device based on density method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580322A (en) * | 2021-07-07 | 2021-11-02 | 太原理工大学 | High-frequency light vibration forming device and using method |
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| CN203881595U (en) * | 2014-06-12 | 2014-10-15 | 陕西师范大学 | Remolded soil sample builder |
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