CN213813090U - Reclaimed water stabilized macadam unconfined compressive strength sample forming die - Google Patents

Abstract

The utility model relates to the technical field of unconfined compressive strength tests, in particular to a reclaimed water stabilized macadam unconfined compressive strength sample forming die which comprises a plurality of sample forming mechanisms and a compaction and release mechanism; the plurality of sample forming mechanisms are detachably fixed on the compaction and pushing-out mechanism. The utility model discloses a set up a plurality of sample forming mechanism and compaction release mechanism, can once only make a plurality of samples, reduced sample preparation time by a wide margin, and a set of sample one shot forming, forming pressure and forming process are all the same, thus not only guaranteed the integrality of each sample, reduced the difference between the sample, avoided the problem of repeated benefit appearance; the convenience degree of sample compaction shaping and demolding operation is improved to a great extent, so that the difficulty of sample compaction shaping and demolding operation is reduced, and the sample preparation efficiency is improved.

Description

Reclaimed water stabilized macadam unconfined compressive strength sample forming die

Technical Field

The utility model relates to an unconfined compressive strength test technical field especially relates to a steady rubble of regeneration water unconfined compressive strength sample forming die.

Background

In recent years, infrastructure construction is still continuously expanded, and geotechnical engineering and test workload is increasing day by day; the test sample of the unconfined compressive strength test of the highway geotechnical test regulation (JTG E40-2007) needs to be compacted and demoulded before measurement, and the test sample prepared by the test is large, and the efficiency of the compaction and demould process is low.

In the prior art, compaction and demolding are respectively completed through different devices, manual hydraulic jacks are mostly adopted for compaction and demolding, the physical consumption is large during operation, only one sample can be operated at a time, and the working efficiency is low; meanwhile, because the weight of the sample and the die cylinder is large, the stability is poor, and deviation is easy to generate in the rising process, the sample and the die cylinder need to be realigned; and after the traditional gravel sample is compacted, the demolding is difficult to succeed due to the transverse pressure of the mold during demolding, and the sample is easy to damage. Therefore, the unlimited compressive strength sample forming die for the reclaimed water stabilized macadam in the prior art has the defects of inconvenient operation, large physical consumption of operators, easy damage of the sample in the demolding process, influence on the test efficiency and the like.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a pair of steady rubble of regeneration water does not have confined compressive strength sample forming die to the steady rubble of regeneration water that exists among the solution prior art does not have confined compressive strength sample forming die to have the problem that the operation is inconvenient, operator physical demands is big, the sample easily damages and influences defects such as test efficiency at drawing of patterns in-process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, which comprises a plurality of sample forming mechanisms and a compaction and release mechanism; the sample forming mechanism is detachably fixed on the compaction pushing-out mechanism; the sample forming mechanism comprises a forming inner cylinder, a forming outer cylinder, a top cover and a cushion block; the forming inner cylinder and the forming outer cylinder are both in a cylindrical structure with openings at two ends, the forming inner cylinder is coaxially arranged in the forming outer cylinder, and the forming inner cylinder is detachably fixed in the forming outer cylinder; the top cover is detachably fixed at the top of the forming inner cylinder; the cushion block is detachably fixed at the bottom of the forming inner cylinder; the compaction push-out mechanism comprises a plurality of hydraulic driving parts; the hydraulic driving part is arranged at the bottom of the forming inner cylinder in a reciprocating manner in the vertical direction, and the hydraulic driving part is arranged corresponding to the forming inner cylinder and the forming outer cylinder.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, further, the compaction and ejection mechanism further comprises a base, a top plate, a tray and a plurality of support rods; one end of the supporting rod is detachably fixed on the base, and the other end of the supporting rod is detachably connected with the top plate; the tray is detachably fixed between the base and the top plate through the supporting rod, spaces are reserved between the tray and the base as well as between the tray and the top plate, and the sample forming mechanism is detachably fixed on the tray; the hydraulic driving part is arranged on the base in a reciprocating mode in the vertical direction and detachably arranged at the bottom of the tray.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, further, a plurality of ring grooves are evenly arranged on the tray, and the ring grooves are arranged corresponding to the hydraulic driving part; the center of the annular groove is provided with a boss; the shaping inner tube detachably set up in on the boss, shaping urceolus detachably set up in the ring channel.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, furthermore, a plurality of supporting rod preformed holes are arranged at the edge of the tray; the bracing piece can be worn to locate in the bracing piece preformed hole, the bracing piece with the bracing piece preformed hole corresponds the setting.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, further, the roof includes roof body and a plurality of rotating assembly; the top plate body is provided with a plurality of reserved push-out sample holes, and the reserved push-out sample holes are arranged corresponding to the hydraulic driving part; the rotating assembly is rotatably arranged on the top plate body and can reciprocate along the vertical direction, the rotating assembly is in clearance fit with the reserved push-out sample hole, and the rotating assembly corresponds to the reserved push-out sample hole.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, further, the rotating assembly comprises a rotating baffle and a rotating handle; the rotating handle is detachably fixed on the rotating baffle; the top plate body is provided with a rotating hole; the rotating handle is arranged in the rotating hole in a penetrating way; rotating barrier passes through rotating handle rotationally set up in reserve in the sample hole of releasing, rotating barrier with reserve release sample hole clearance fit, rotating barrier with reserve release sample hole corresponds the setting.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, further, a reserved groove is arranged on the base; the hydraulic driving part is detachably arranged in the reserved groove.

The utility model provides a pair of steady rubble of recycled water does not have confined compressive strength sample forming die, furtherly, the shaping inner tube is formed by the combination of a plurality of arc lamella, and is a plurality of detachably connects between the arc lamella.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, further, the top cover comprises a top cover body and a bulge; the top cover body is cylindrical with an opening at one end, and can be in interference fit with the forming inner cylinder; the protruding part is fixedly arranged at the center inside the top cover body.

The utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, furthermore, reserved bolts are detachably fixed on all the arc-shaped petals; a plurality of bolt preformed holes are uniformly formed in the forming outer cylinder; the forming outer cylinder is connected with all the arc petals through bolts.

The technical scheme has the following advantages or beneficial effects:

the utility model provides a reclaimed water stabilized macadam unconfined compressive strength sample forming die, which comprises a plurality of sample forming mechanisms and a compaction and release mechanism; the sample forming mechanism is detachably fixed on the compaction pushing-out mechanism; the sample forming mechanism comprises a forming inner cylinder, a forming outer cylinder, a top cover and a cushion block; the forming inner cylinder and the forming outer cylinder are both in a cylindrical structure with openings at two ends, the forming inner cylinder is coaxially arranged in the forming outer cylinder, and the forming inner cylinder is detachably fixed in the forming outer cylinder; the top cover is detachably fixed on the top of the forming inner cylinder; the cushion block is detachably fixed at the bottom of the forming inner cylinder; the compaction pushing-out mechanism comprises a plurality of hydraulic driving parts; the hydraulic driving part is arranged at the bottom of the forming inner cylinder in a reciprocating manner in the vertical direction, and the hydraulic driving part is arranged corresponding to the forming inner cylinder and the forming outer cylinder. The utility model provides a pair of steady rubble of regeneration water does not have confined compressive strength sample forming die, the compaction design and the drawing of patterns integration that have realized the sample, when having guaranteed the compaction and the drawing of patterns quality of sample, still improved the compaction and the drawing of patterns efficiency of sample by a wide margin. The concrete expression is as follows: the utility model discloses a set up a plurality of sample forming mechanism and compaction release mechanism, can once only make a plurality of samples, reduced sample preparation time by a wide margin, and a set of sample one shot forming, forming pressure and forming process are all the same, thus not only guaranteed the integrality of each sample, reduced the difference between the sample, avoided the problem of repeated benefit appearance; the convenience degree of sample compaction shaping and demolding operation is improved to a great extent, so that the difficulty of sample compaction shaping and demolding operation is reduced, and the sample preparation efficiency is improved. It is visible, the utility model provides a steady rubble of regeneration water that exists among the prior art not have the problem of the confined compressive strength sample forming die existence operation inconvenient, operator's physical demands is big, the sample easily damages and influences defects such as test efficiency at drawing of patterns in-process.

Drawings

The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic sketch of a three-dimensional structure of a reclaimed water stabilized macadam unconfined compressive strength sample forming mold provided in embodiment 1 of the present invention;

fig. 2 is a schematic sketch of a three-dimensional structure of a forming outer cylinder and a forming inner cylinder in a reclaimed water stabilized macadam unconfined compressive strength sample forming die provided in embodiment 1 of the present invention;

fig. 3 is a schematic diagram of a three-dimensional structure of a forming outer cylinder in a reclaimed water stabilized macadam unconfined compressive strength sample forming die provided in embodiment 1 of the present invention;

fig. 4 is a schematic diagram of a three-dimensional structure of a forming inner cylinder in a reclaimed water stabilized macadam unconfined compressive strength sample forming mold provided in embodiment 1 of the present invention;

fig. 5 is a schematic sketch of a three-dimensional structure of a cushion block in a reclaimed water stabilized macadam unconfined compressive strength sample forming die provided in embodiment 1 of the present invention;

fig. 6 is a schematic sketch of a three-dimensional structure of a top cover in a reclaimed water stabilized macadam unconfined compressive strength sample forming mold provided in embodiment 1 of the present invention;

fig. 7 is a schematic sketch of a three-dimensional structure of a compaction and ejection mechanism in a reclaimed water stabilized macadam unconfined compressive strength sample forming die provided by the embodiment of the invention 1;

fig. 8 is a schematic sketch of a three-dimensional structure of a top plate in a reclaimed water stabilized macadam unconfined compressive strength sample forming die provided in embodiment 1 of the present invention;

fig. 9 is a schematic diagram of the structure of the bottom of the top plate in the reclaimed water stabilized macadam unconfined compressive strength sample forming mold provided in embodiment 1 of the present invention;

fig. 10 is a schematic diagram of a structure of a top plate with a rotary hole formed in a reclaimed water stabilized macadam unconfined compressive strength sample forming mold provided in embodiment 1 of the present invention;

fig. 11 is a schematic sketch of a three-dimensional structure of a rotating baffle and a rotating handle in a reclaimed water stabilized macadam unconfined compressive strength sample forming die provided in embodiment 1 of the present invention;

fig. 12 is a schematic diagram of a three-dimensional structure of a tray in a reclaimed water stabilized macadam unconfined compressive strength sample forming mold, provided by embodiment 1 of the present invention;

fig. 13 is a schematic sketch of the three-dimensional structure of the base and the hydraulic driving part in the reclaimed water stabilized macadam unconfined compressive strength sample forming die provided by embodiment 1 of the present invention.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

in the prior art, before a confined compressive strength test sample is measured, compaction and demolding are required, the compaction and demolding operations are respectively completed through different devices, manual hydraulic jacks are mostly adopted for compaction and demolding, the physical consumption is large during operation, only one sample can be operated at a time, and the working efficiency is low; meanwhile, because the weight of the sample and the die cylinder is large, the stability is poor, and deviation is easy to generate in the rising process, the sample and the die cylinder need to be realigned; in addition, after the traditional gravel sample is compacted, the demolding is difficult to succeed due to the transverse pressure of the mold during demolding, and the sample is easy to damage.

In order to solve the problems of the forming mold of the unconfined compressive strength sample of the reclaimed water stable macadam in the prior art that the operation is inconvenient, the physical consumption of an operator is large, the sample is easy to damage in the demolding process, the test efficiency is influenced and the like, the embodiment 1 of the utility model provides a forming mold of the unconfined compressive strength sample of the reclaimed water stable macadam, as shown in fig. 1-13, comprising a plurality of sample forming mechanisms 1 and a compaction pushing mechanism 2; the sample forming mechanism 1 is detachably fixed on the compaction pushing-out mechanism 2; the sample forming mechanism 1 comprises a forming inner cylinder 11, a forming outer cylinder 12, a top cover 13 and a cushion block 14; the forming inner cylinder 11 and the forming outer cylinder 12 are both in a cylindrical structure with openings at two ends, the forming inner cylinder 11 is coaxially arranged in the forming outer cylinder 12, and the forming inner cylinder 11 is detachably fixed in the forming outer cylinder 12; the top cover 13 is detachably fixed on the top of the forming inner cylinder 11; the cushion block 14 is detachably fixed at the bottom of the forming inner cylinder 11; the compaction pushing-out mechanism 2 includes a plurality of hydraulic drive portions 21; the hydraulic drive unit 21 is provided at the bottom of the forming inner cylinder 11 so as to be capable of reciprocating in the vertical direction, and the hydraulic drive unit 21 is provided corresponding to the forming inner cylinder 11 and the forming outer cylinder 12.

Specifically, in the present embodiment, the inner diameter of the forming inner cylinder 11 is 150mm, the height is 230mm, and the cylinder wall thickness is 13.5 mm; the inner diameter of the outer cylinder 12 is 303.5mm, the height is 230mm, and the wall thickness is 13.5 mm; the overall height of the top cover 13 is 40 mm; the overall height of the cushion block 14 is 40 mm; the bottom of cushion 14 is provided with circular recess, and circular recess's height is 30mm, and the diameter is 130mm, and annular thickness is 10 mm.

The utility model provides a pair of steady rubble of regeneration water does not have confined compressive strength sample forming die, the compaction design and the drawing of patterns integration that have realized the sample, when having guaranteed the compaction and the drawing of patterns quality of sample, still improved the compaction and the drawing of patterns efficiency of sample by a wide margin. The concrete expression is as follows: the utility model discloses a set up a plurality of sample forming mechanism 1 and compaction release mechanism 2, specifically, be equipped with three sample forming mechanism 1 in this implementation, can once only make three sample, the sample preparation time has been reduced by a wide margin, and a set of sample one shot forming, forming pressure and forming process homogeneous phase, thereby the integrality of each sample has not only been ensured, the difference between the sample has been reduced, the problem of repeated benefit appearance has been avoided, the convenience of sample compaction design and drawing of patterns operation has still been improved to a great extent, thereby the degree of difficulty of sample compaction design and drawing of patterns operation has been reduced, and then system appearance efficiency has been improved. It is visible, the utility model provides a steady rubble of regeneration water that exists among the prior art not have the problem of the confined compressive strength sample forming die existence operation inconvenient, operator's physical demands is big, the sample easily damages and influences defects such as test efficiency at drawing of patterns in-process.

In order to improve the working stability of the compaction and ejection mechanism 2, the embodiment provides a forming mold for unconfined compressive strength test samples of the reclaimed water stabilized macadam, and further, as shown in fig. 7 and 13, the compaction and ejection mechanism 2 further comprises a base 22, a top plate 23, a tray 24 and a plurality of support rods 25; one end of the supporting rod 25 is detachably fixed on the base 22, and the other end of the supporting rod 25 is detachably connected with the top plate 23; the tray 24 is detachably fixed between the base 22 and the top plate 23 through a support rod 25, the tray 24, the base 22 and the top plate 23 are spaced, and the sample forming mechanism 1 is detachably fixed on the tray 24; the hydraulic drive section 21 is provided on the base 22 so as to be reciprocatingly movable in the vertical direction, and the hydraulic drive section 21 is detachably provided on the bottom of the tray 24. Further, a reserved groove 221 is formed in the base 22; the hydraulic driving part 21 is detachably disposed in the reserve groove 221. Specifically, the base 22 in this embodiment has a diameter of 800mm and a height of 400 mm; the diameter of the top plate 23 is 800mm, and the thickness is 40 mm; the tray 24 is a circular plate with the diameter of 720mm and the thickness of 35 mm; the diameter of the support rod 25 is 40mm, the height is 700mm, and four support rods 25 are arranged; the diameter of the prepared groove 221 provided on the base 22 is 650mm and the depth is 240 mm. Through setting up base 22, roof 23, tray 24 and a plurality of bracing piece 25, hydraulic drive portion 21 then sets up in base 22's reservation recess 221, a structure is simple, easily realize, bracing piece 25 has realized the joint support and the fixed effect of each part, and play the guide effect for tray 24 motion in vertical side, thereby realized the compaction of system appearance and the integrated design of drawing of patterns through above-mentioned part, and then when having simplified 2 overall structure of compaction ejecting mechanism, the compaction of system appearance and the reliability of drawing of patterns work have still been improved to a great extent, the compaction and the drawing of patterns efficiency of system appearance have further been improved.

In order to improve the convenience of the demolding operation, in the mold for molding the unconfined compressive strength sample of the reclaimed water stabilized macadam provided by the embodiment, as shown in fig. 12, a plurality of annular grooves 241 are uniformly formed in the tray 24, and the annular grooves 241 are arranged corresponding to the hydraulic driving part 21; the center of the annular groove 241 is a boss 242; the forming inner cylinder 11 is detachably disposed on the boss 242, and the forming outer cylinder 12 is detachably disposed in the annular groove 241. Specifically, in the present embodiment, the diameter of the annular groove 241 is 315mm, the depth of the annular groove 241 is 10mm, the boss 242 is a cylindrical boss, the diameter of the boss 242 is 180mm, and the height is 10 mm. By arranging the annular groove 241 and the boss 242, the forming inner cylinder 11 and the forming outer cylinder 12 can be respectively arranged in the boss 242 and the annular groove 241, and in the process of demoulding, when the forming outer cylinder 12 is dismounted, the forming outer cylinder 12 can just fall into the annular groove 241, so that the convenience degree of demoulding operation is improved; the boss 242 is used for placing the removed sample, so that the sample can accurately pass through the reserved sample pushing hole 2311 when being pushed out.

In order to improve the operation stability of the tray 24 in the ascending and descending process along the support rods 25, in the mold for molding the unconfined compressive strength sample of the recycled water stabilized macadam provided in the embodiment, as shown in fig. 12, a plurality of support rod preformed holes 243 are formed at the edge of the tray 24; the support rod 25 can be inserted into the support rod preformed hole 243, and the support rod 25 is arranged corresponding to the support rod preformed hole 243. Specifically, the diameter of bracing piece preformed hole 243 is 41mm in this embodiment, is half circular shape, is provided with four bracing piece preformed holes altogether to the symmetry sets up on tray 24, runs through whole tray 24, thereby makes tray 24 in-process that goes up and down, can steadily reciprocate along bracing piece 25, and then has guaranteed the compaction of sample and the reliability of drawing of patterns work.

In order to further improve the compacting and ejecting efficiency of the sample and the overall working reliability of the mold, the embodiment provides a forming mold for unconfined compressive strength sample of recycled water stabilized macadam, further, as shown in fig. 8-11, the top plate 23 comprises a top plate body 231 and a plurality of rotating assemblies 232; a plurality of reserved sample pushing holes 2311 are formed in the top plate body 231, and the reserved sample pushing holes 2311 are arranged corresponding to the hydraulic driving part 21; the rotating assembly 232 is rotatably disposed on the top plate body 231, the rotating assembly 232 can reciprocate along the vertical direction, the rotating assembly 232 is in clearance fit with the reserved sample pushing-out hole 2311, and the rotating assembly 232 and the reserved sample pushing-out hole 2311 are correspondingly disposed. Specifically, the diameter of the reserved push-out sample hole 2311 in the present embodiment is 160mm, it penetrates the entire top plate 23, and there are three reserved push-out sample holes 2311 equally provided on the top plate 23.

Further, the rotation assembly 232 includes a rotation baffle 2321 and a rotation handle 2322; the rotating handle 2322 is detachably fixed on the rotating baffle 2321; the top plate body 231 is provided with a rotating hole 2312; the rotating handle 2322 is arranged in the rotating hole 2312 in a penetrating manner; the rotating baffle 2321 is rotatably arranged in the reserved sample pushing-out hole 2311 through the rotating handle 2322, the rotating baffle 2321 is in clearance fit with the reserved sample pushing-out hole 2311, and the rotating baffle 2321 is arranged corresponding to the reserved sample pushing-out hole 2311. Specifically, in the present embodiment, the rotating baffle 2321 is a circular plate with a diameter of 171mm and a thickness of 20mm, is located below the sample pushing hole 2311, and is welded to the rotating handle 2322; the rotating rod of the rotating handle 2322 is 60mm long and 10mm in diameter, the handle head is in a regular hexagonal prism structure and 20mm high, and the rotating rod penetrates through the rotating hole 2312; the rotation hole 2312 has a diameter of 12mm and penetrates the entire top plate 23. By arranging the top plate body 231, the rotating baffle 2321, the rotating handle 2322 and other components, the rotating baffle 2321 can rotate for 360 degrees, and the reserved push-out sample hole 2311 on the top plate 23 needs to be blocked by the rotating baffle 2321 before compaction operation; then, the hydraulic driving part 21 is operated, and the hydraulic driving part 21 is lifted to the rotating baffle 2321 which is pushed to the top plate 23 by the forming inner cylinder 11 and the forming outer cylinder 12; therefore, through the arrangement, the sample can be compacted and pushed out by rotating the rotating baffle 2321, so that the sample can be compacted and pushed out more conveniently, and the reliability of the sample compacting and pushing-out operation can be effectively improved.

In order to improve the demolding efficiency and reduce the damage degree of the sample as much as possible, in the unlimited compressive strength sample forming mold for the recycled water-stabilized macadam provided by the embodiment, further, as shown in fig. 2 to 4, the forming inner cylinder 11 is formed by combining a plurality of arc-shaped petals 111, and the arc-shaped petals 111 are detachably connected. Furthermore, all the arc-shaped petals 111 are detachably fixed with reserved bolts 112; a plurality of bolt preformed holes 121 are uniformly formed in the forming outer cylinder 12; the outer shaping cylinder 12 is bolted to all the arc petals 111. Specifically, in the present embodiment, the arc-shaped flap 111 is one third of the forming inner cylinder 11, the height is 230mm, and the thickness is 13.5 mm; the diameter of each of the three bolt preformed holes 121 is 15mm, and the thickness of each bolt preformed hole is 13.5 mm; the three reserved bolts 112 are arranged on the central axis of the outer side of the arc-shaped flap 111, the diameter of a screw rod of each reserved bolt 112 is 15mm, the length of the screw rod is 83.5mm, threads are arranged outside the screw rod, the diameter of a bolt head is 40mm, and the thickness of the bolt head is 30 mm; the nut is sleeved on the reserved bolt 112, the nut is in a regular hexagon shape, a bolt hole is formed in the nut, the diameter of the hole is 15mm, the depth of the hole is 30mm, and internal threads are formed in the inner wall of the hole and used for fixing the formed inner barrel 11. Through the three lamella section of thick bamboo of application dismantlement formula, three arc lamella 111 promptly to when making it carry out unconfined compressive strength sample shaping to rubble material, both easy and simple to handle, can improve operating efficiency when the drawing of patterns again, thereby reduce sample drawing of patterns process's damage, specifically, the edge of three arc lamella 111 has all set up the interlock mouth, thereby can make to realize the inseparable bonding between the three arc lamella 111, and then fixes shaping inner tube 11 better, improves the whole operational reliability of mould.

In order to further improve the compacting and demolding efficiency of the sample, the embodiment provides a forming mold for unconfined compressive strength sample of recycled water-stabilized macadam, and further, as shown in fig. 6, the top cover 13 comprises a top cover body 131 and a protruding part 132; the top cover body 131 is cylindrical with an opening at one end, and the top cover body 131 can be in interference fit with the forming inner cylinder 11; the protrusion 132 is fixedly disposed at the center inside the top cover body 131. Specifically, in this embodiment, the height of the top cover 13 is 40mm, the diameter of the circular groove inside the top cover 13 is 130mm, the annular thickness is 10mm, and the protrusion 132 is in the shape of a circular handle, the diameter of which is 30mm, and the height of which is 30 mm. Through setting up top cap body 131 and bellying 132, after the material was packed into the shaping inner tube 11, carry out the preliminary pre-compaction of sample, at this moment, need put into shaping inner tube 11 with top cap 13 on to hard pressing for some top cap 13 can be impressed in shaping inner tube 11, and the bellying 132 that is the round handle form then can be convenient for operating personnel to the setting of top cap 13, thereby has improved the compaction and the drawing of patterns efficiency of sample to a certain extent.

The utility model provides a pair of steady rubble of reclaimed water unconfined compressive strength sample forming die's application method includes following step:

the method comprises the following steps: the sample formation inner cylinder 11 is assembled. The forming inner cylinder 11 is a detachable three-piece cylinder, the inner diameter is 150mm, the thickness is 13.5mm, and the height is 230 mm. The outer side of the arc-shaped petal 111 is provided with a reserved bolt 112 with threads, the length of the screw is 50mm, the diameter of the screw is 15mm, and the bolt is fixed on the forming inner cylinder 11 through a bolt reserved hole 121 of the forming outer cylinder 12. The three arc-shaped flaps 111 are assembled into a closed cylinder, so that the occlusal openings of the three arc-shaped flaps are tightly connected together.

Step two: and fixing a reserved bolt 112 outside the forming inner cylinder 11. The reserved bolt 112 on the outer side of the forming inner cylinder 11 is provided with a nut, the diameter of a bolt hole in the nut is 15mm, the thickness of the nut is 30mm, and threads are reserved on the inner side of the bolt hole. After the three arc-shaped petals 111 are assembled, the nut is screwed in the direction away from the forming inner cylinder 11 until the nut is screwed to the forming outer cylinder 12 and is not screwed.

Step three: and filling the crushed stone test material. And (3) padding filter paper on a cushion block 14 at the bottom of the mould with the height of 40mm and the diameter of 150mm, then sleeving the forming inner cylinder 11 on the cushion block 14, and pouring the weighed gravel test material into the forming inner cylinder 11 for three times.

Step four: initial prepressing of the test sample. After the material was charged into the inner mold cylinder 11, filter paper was placed on the upper surface of the inner mold cylinder, and a lid 13 having a height of 40mm and a diameter of 150mm was placed on the inner mold cylinder 11, and pressed strongly so that a part of the lid 13 was pressed into the inner mold cylinder 11.

Step five: a forming inner cylinder 11 and a forming outer cylinder 12 for placing unconfined compressive strength samples. The forming inner cylinder 11 and the forming outer cylinder 12 of the pre-pressed unconfined compressive strength sample are placed on a tray 24. Three annular grooves 241 for placing samples and a circular boss 242 are arranged on the tray 24. When the forming inner cylinder 11 and the forming outer cylinder 12 are placed, the forming inner cylinder 11 is placed on the circular boss 242 so that the forming outer cylinder 12 is located right in the annular groove 241 outside the boss 242.

Step six: rotating baffle 2321 on top plate 23. The rotating baffle 2321 is rotatable 360 degrees, and is 20mm thick and 171mm in diameter. Before compaction, the rotation stop 2321 blocks the reserved push-out sample hole 2311 in the top plate 23.

Step seven: and (6) compacting. After the rotation stopper 2321 is closed off the reserved pushed-out sample hole 2311, a power supply is inserted, and the hydraulic driving part 21, i.e., the electrohydraulic device, is raised until the unconfined compressive strength sample forming inner cylinder 11 and the forming outer cylinder 12 are pushed against the rotation stopper 2321 on the top plate 23. When the upper part of the top cover 13 is flush with the formed inner cylinder 11 and the formed outer cylinder 12 of the unconfined compressive strength sample, the lifting is stopped.

Step eight: and (5) demolding. Firstly, the hydraulic driving part 21 is lowered to a certain position, and the nuts of the forming inner cylinder 11 and the forming outer cylinder 12 of the unconfined compressive strength sample are screwed towards the direction of the forming inner cylinder 11 until the three arc-shaped petals 111 of the forming inner cylinder 11 can move back and forth along with the reserved bolts 112. After loosening, the outer forming cylinder 12 just falls into the annular groove 241 on the tray 24, and the top cover 13 on the sample is removed.

Step nine: the molded sample was pushed out. The rotation baffle 2321 on the top plate 23 is rotated to a certain position to expose the reserved sample pushing-out hole 2311 on the top plate 23, the hydraulic driving part 21 is lifted until the sample completely penetrates out of the reserved sample pushing-out hole 2311, and the sample is taken down.

To sum up, the utility model provides a pair of steady rubble of regeneration water does not have confined compressive strength sample forming die has realized the compaction design and the drawing of patterns integration of sample, when having guaranteed the compaction and the drawing of patterns quality of sample, has still improved the compaction and the drawing of patterns efficiency of sample by a wide margin. The concrete expression is as follows: the utility model discloses a set up a plurality of sample forming mechanism and compaction release mechanism, can once only make a plurality of samples, reduced sample preparation time by a wide margin, and a set of sample one shot forming, forming pressure and forming process are all the same, thus not only guaranteed the integrality of each sample, reduced the difference between the sample, avoided the problem of repeated benefit appearance; the convenience degree of sample compaction shaping and demolding operation is improved to a great extent, so that the difficulty of sample compaction shaping and demolding operation is reduced, and the sample preparation efficiency is improved. It is visible, the utility model provides a steady rubble of regeneration water that exists among the prior art not have the problem of the confined compressive strength sample forming die existence operation inconvenient, operator's physical demands is big, the sample easily damages and influences defects such as test efficiency at drawing of patterns in-process.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (10)

1. A reclaimed water stabilized macadam unconfined compressive strength sample forming die is characterized by comprising a plurality of sample forming mechanisms and a compaction pushing-out mechanism; the sample forming mechanism is detachably fixed on the compaction pushing-out mechanism;

the sample forming mechanism comprises a forming inner cylinder, a forming outer cylinder, a top cover and a cushion block; the forming inner cylinder and the forming outer cylinder are both in a cylindrical structure with openings at two ends, the forming inner cylinder is coaxially arranged in the forming outer cylinder, and the forming inner cylinder is detachably fixed in the forming outer cylinder; the top cover is detachably fixed at the top of the forming inner cylinder; the cushion block is detachably fixed at the bottom of the forming inner cylinder;

the compaction push-out mechanism comprises a plurality of hydraulic driving parts; the hydraulic driving part is arranged at the bottom of the forming inner cylinder in a reciprocating manner in the vertical direction, and the hydraulic driving part is arranged corresponding to the forming inner cylinder and the forming outer cylinder.

2. The forming die for the unconfined compressive strength test sample of the reclaimed water stabilized macadam as recited in claim 1, wherein the compaction and ejection mechanism further comprises a base, a top plate, a tray and a plurality of support rods; one end of the supporting rod is detachably fixed on the base, and the other end of the supporting rod is detachably connected with the top plate; the tray is detachably fixed between the base and the top plate through the supporting rod, spaces are reserved between the tray and the base as well as between the tray and the top plate, and the sample forming mechanism is detachably fixed on the tray; the hydraulic driving part is arranged on the base in a reciprocating mode in the vertical direction and detachably arranged at the bottom of the tray.

3. The forming die for the unconfined compressive strength sample of the reclaimed water stabilized macadam as recited in claim 2, wherein a plurality of annular grooves are uniformly formed in the tray, and the annular grooves are arranged corresponding to the hydraulic driving part; the center of the annular groove is provided with a boss; the shaping inner tube detachably set up in on the boss, shaping urceolus detachably set up in the ring channel.

4. The forming die for the unconfined compressive strength test sample of the reclaimed water stabilized macadam as recited in claim 3, wherein a plurality of support rod preformed holes are formed at the edge of the tray; the bracing piece can be worn to locate in the bracing piece preformed hole, the bracing piece with the bracing piece preformed hole corresponds the setting.

5. The reclaimed water stabilized macadam unconfined compressive strength sample forming die as claimed in claim 2, wherein the top plate comprises a top plate body and a plurality of rotating assemblies; the top plate body is provided with a plurality of reserved push-out sample holes, and the reserved push-out sample holes are arranged corresponding to the hydraulic driving part; the rotating assembly is rotatably arranged on the top plate body and can reciprocate along the vertical direction, the rotating assembly is in clearance fit with the reserved push-out sample hole, and the rotating assembly corresponds to the reserved push-out sample hole.

6. The forming die for the unconfined compressive strength test sample of the recycled water stabilized macadam as claimed in claim 5, wherein the rotating assembly comprises a rotating baffle and a rotating handle; the rotating handle is detachably fixed on the rotating baffle; the top plate body is provided with a rotating hole; the rotating handle is arranged in the rotating hole in a penetrating way; rotating barrier passes through rotating handle rotationally set up in reserve in the sample hole of releasing, rotating barrier with reserve release sample hole clearance fit, rotating barrier with reserve release sample hole corresponds the setting.

7. The forming die for the unconfined compressive strength sample of the reclaimed water stabilized macadam as recited in claim 2, wherein a reserved groove is formed on the base; the hydraulic driving part is detachably arranged in the reserved groove.

8. The reclaimed water stabilized macadam unconfined compressive strength test specimen forming die as claimed in any one of claims 1 to 7, wherein the forming inner cylinder is formed by combining a plurality of arc-shaped petals, and the arc-shaped petals are detachably connected with each other.

9. The forming die for the unconfined compressive strength test sample of the recycled water stabilized macadam as recited in claim 8, wherein the top cover comprises a top cover body and a convex part; the top cover body is cylindrical with an opening at one end, and can be in interference fit with the forming inner cylinder; the protruding part is fixedly arranged at the center inside the top cover body.

10. The forming die for the unconfined compressive strength test sample of the reclaimed water stabilized macadam as recited in claim 8, wherein reserved bolts are detachably fixed on all the arc-shaped petals; a plurality of bolt preformed holes are uniformly formed in the forming outer cylinder; the forming outer cylinder is connected with all the arc petals through bolts.

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