CN109813590A - A kind of mold for crack rocks test specimen - Google Patents
A kind of mold for crack rocks test specimen Download PDFInfo
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- CN109813590A CN109813590A CN201910045410.0A CN201910045410A CN109813590A CN 109813590 A CN109813590 A CN 109813590A CN 201910045410 A CN201910045410 A CN 201910045410A CN 109813590 A CN109813590 A CN 109813590A
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Abstract
The present invention relates to the rocks test piece moulds of compression test, specifically a kind of mold for crack rocks test specimen, it is preceding framed and rear framed including a vertical plate and two side plates, top edge and lower edge on the outside of each side plate are equipped with horizontally disposed dovetail groove, be slidably connected in the dovetail groove of two framed side plates a sliding block afterwards, it is connected between two sliding blocks by the second cutting line, is equipped with the mobile cutting groove of the second cutting line of evacuation in preceding framed and rear framed side；Cross bar side is rotatablely installed two pull rods, and screw thread is arranged in pull bar termination, and each sliding block side is respectively provided with the second threaded hole, and two pull rods are correspondingly connected with two sliding blocks, and pull bar termination, which is threadedly engaged, to be connected in corresponding second threaded hole.The present invention carries out sawing to the upper and lower end face of test specimen, so that end face is concordant, to reduce the workload of test specimen manufacture, improves the efficiency of experiment.
Description
Technical field
It is specifically a kind of for crack rocks test specimen the present invention relates to the rocks test piece mould of compression test
Mold.
Background technique
Rock mass in nature, by the restriction and influence of various objective condition, is made in diagenetic process in long-term geology
Different types of joint is formd under, according to the perforation degree at joint in rock mass, can be classified as perforation jointed rock mass and be broken
Continuous jointed rock mass.Rock mass is appeared the very little part of the joint joint Zhi Zhan sum that investigation shows to grow up in natural rock mass, penetrate through,
It is more short and small, interrupted joint, is selected in the preferable country rock of rock-mass quality as much as possible additionally, due to numerous underground engineerings
It builds, so as to avoiding the adverse effect at large-scale perforation joint, therefore is based on the above two o'clock, master is risen to underground engineering wall rock mechanical characteristic
The joint for leading effect is in interrupted distribution more, and rock with discrete joints is most common a kind of complicated rock mass in underground engineering.
In view of intermittent joints prefabricated in true rock material are more difficult, thus it is similar by preparing rock type brittleness
Cast material, it is broken to become discussion intermittent joints rock brittleness strength of materials deformation for prefabricated intermittent joints on the basis of cast material
Bad and crack propagation feature important means.
Mold in the prior art sample demould when, easily cause test specimen upper and lower end face damage, thus need to end face into
Row is cut again, so that end face is concordant, is not only increased the workload of test specimen manufacture, also be will affect the accuracy of experiment.
Summary of the invention
In order to make up for the deficiencies of the prior art, the mold of the prefabricated test specimen containing crack of one kind proposed by the present invention solves existing
Technology pilot part upper and lower end face damage, it is also necessary to the problem of end face is cut again.
The technical solution adopted by the present invention to solve the technical problems is: of the present invention a kind of for crack rocks
The mold of test specimen, including preceding framed, rear framed, upper cover plate and lower cover plate, it is described it is preceding it is framed, rear mold frame structure is identical, it is preceding it is framed,
Framed afterwards is U-shaped, it is preceding it is framed, it is rear it is framed can piece together square column, form square cavity inside square column, it is preceding it is framed, after
Framed middle part be equipped with can by rectangle steel disc to wear be located at it is preceding it is framed, it is rear it is framed between rectangular channel；The upper cover plate and lower cover
Identical hardened structure is rectangular stepped plate, and upper cover plate is used to close the upper end of square column, and lower cover plate is for closing under square column
End, the upper cover plate and the opposite two sides of lower cover plate are respectively fixedly connected with a supporting plate, and through-hole is arranged in the middle part of the supporting plate,
Preceding framed, rear framed side is equipped with the first threaded hole of corresponding through-hole setting, penetrates fastening bolt in through-hole and is threaded in
In first threaded hole；
It is preceding framed and it is rear it is framed include a vertical plate and two side plates, two side plates are respectively fixedly connected with vertical plate both sides and vertical
In vertical plate, top edge and lower edge on the outside of each side plate are equipped with horizontally disposed dovetail groove, rear two framed side plates
Dovetail groove in be slidably connected a sliding block, be connected between two sliding blocks by the second cutting line, preceding framed and rear framed
Side is equipped with the mobile cutting groove of the second cutting line of evacuation；Two sliding blocks are by actuator promotion synchronous slide and by rear framed
It is framed interior before inside sliding to.
Preferably, the actuator includes cross bar, and cross bar side is rotatablely installed two pull rods, and spiral shell is arranged in the pull bar termination
Line, each sliding block side are respectively provided with the second threaded hole, and the axis of the second threaded hole is parallel with dovetail groove, and two pull rods are correspondingly connected with
Two sliding blocks, pull bar termination, which is threadedly engaged, to be connected in corresponding second threaded hole.
Preferably, second cutting line is iron wire, and outer ring roll-in forms one group of annular groove.
Preferably, be slidably connected step column in a wherein sliding block, and second cutting line one end is through sliding block and and step
Column one end is fixedly connected, and the second cutting line and step column are coaxially disposed, and is covered on the cylinder between the step and sliding block of step column
It is connected to support spring, the other end of the second cutting line is fixedly connected with square column one end, and square column is coaxially set with the second cutting line
It sets and is slidably connected with opposite another sliding block, sliding bar is fixedly connected in the square column other end, in the corresponding side plate of square column
Side is fixedly connected with waveform plate, and the waveform plate is arranged in parallel with dovetail groove, and sliding bar can be in the wave of waveform plate
Surface sliding.
Preferably, the sliding bar outer ring is socketed deep groove ball bearing, and deep groove ball bearing inner ring is fixedly connected with sliding bar, deep
Ditch ball bearing outer ring connects on the wave surface of waveform plate.
Preferably, side framed after preceding framed contact is fixedly connected with one group of bolt, framed before rear framed contact
Side is equipped with and the one-to-one jack of bolt.
Preferably, the bolt and socket gap are cooperatively connected.
Beneficial effects of the present invention are as follows:
The present invention by pull or jack withstand on cross bar and it is preceding it is framed between so that shifting of second cutting line with two sliding blocks
It is dynamic, by the wave surface of waveform plate, so that square column horizontally slips when moving, and utilize the annular groove on iron wire surface
Structure carries out sawing to the upper and lower end face of test specimen, so that end face is concordant, to reduce the workload of test specimen manufacture, improves experiment
Accuracy.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is partial enlarged view at N in Fig. 1；
Fig. 3 is rear framed structural schematic diagram；
Fig. 4 is that the embodiment of the present invention 2 removes the main view after upper cover plate and lower cover plate；
Fig. 5 is D-D cross-sectional view in Fig. 4；
Fig. 6 is partial enlarged view at M in Fig. 5；
Fig. 7 is the structural schematic diagram of upper cover plate and lower cover plate
Fig. 8 is C-C cross-sectional view in Fig. 4；
Fig. 9 is partial enlarged view at H in Fig. 1.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
As shown in Figures 1 to 7, a kind of mold for crack rocks test specimen of the present invention, including preceding framed 11, rear mold
Frame 12, upper cover plate 13 and lower cover plate 14, described preceding framed 11, rear framed 12 structure it is identical, preceding framed 11, rear framed 12 be U
Shape, preceding framed 11, rear framed 12 can piece together square column, formation square cavity inside square column, and preceding framed 11, rear framed 12
Middle part be equipped with can be by rectangle steel disc to the rectangular channel 121 worn between preceding framed 11, rear framed 12；The upper cover plate 13 with
Identical 14 structure of lower cover plate is rectangular stepped plate, and upper cover plate 13 is used to close the upper end of square column, and lower cover plate 14 is for closing
The lower end of square column, the upper cover plate 13 and the opposite two sides of lower cover plate 14 are respectively fixedly connected with a supporting plate 4, the supporting plate
Through-hole 41 is arranged in 4 middle parts, the first threaded hole 42 that corresponding through-hole 41 is arranged is equipped in preceding framed 11, rear framed 12 side, by leading to
Fastening bolt is penetrated in hole 41 and is threaded in the first threaded hole 42, after preceding framed 11, rear framed 12 split, is made first
With 14 closed lower of lower cover plate, in the mixture of the intracavitary injection gypsum and water of the square column of formation, and after sufficiently vibrating, in rectangle
A little butter is smeared on steel disc, by its by preceding framed 11, rear framed 12 rectangular channel 3 to wearing；Lower cover plate 14 is installed；In test specimen
Before being not yet fully cured, rectangle steel disc is extracted, carries out demoulding；
Specifically, preceding framed 11 and rear framed 12 include a vertical plate 111 and two side plates 112, two side plates 112 are solid respectively
Determine 111 both sides of connection board and perpendicular to vertical plate 111, is equipped with level in the top edge in each 112 outside of side plate and lower edge
The dovetail groove 2 of setting, be slidably connected in the dovetail groove 2 of rear framed 12 two side plates 112 sliding block 21, two sliding blocks 21
Between be connected by the second cutting line 22, it is mobile to be equipped with evacuation the second cutting line 22 in preceding framed 11 and rear framed 12 side
Cutting groove 23；Two sliding blocks 21 by actuator 3 push synchronous slide and by before sliding in rear framed 12 framed 11, the drive
Moving part 3 includes cross bar 31, and 31 side of cross bar is rotatablely installed two pull rods 32, and screw thread, each sliding block is arranged in 32 end of pull rod
21 sides are respectively provided with the second threaded hole 211, and the axis of the second threaded hole 211 is parallel with dovetail groove 2, and two pull rods 32 are correspondingly connected with
Two sliding blocks 21,32 end of pull rod, which is threadedly engaged, to be connected in corresponding second threaded hole 211.When needing demoulding, first will
The one-to-one correspondence of pull rod 32 is tightened on corresponding sliding block 21, by pulling or jack is withstood between cross bar 31 and preceding framed 11,
So that movement of second cutting line 22 with two sliding blocks 21, with using the second cutting line 22 to upper cover plate 13 and lower cover plate 14 with
The separation of test specimen collapses angle to prevent test specimen or surface cracks.
Specifically, second cutting line 22 is iron wire, outer ring roll-in forms one group of annular groove；A cunning wherein
Be slidably connected step column 6 in block 21, and 22 one end of the second cutting line is through sliding block 21 and is fixedly connected with 6 one end of step column, second
Cutting line 22 and step column 6 are coaxially disposed, and are socketed with support spring on the cylinder between the step and sliding block 21 of step column 6
61, the other end of the second cutting line 22 is fixedly connected with 62 one end of square column, and square column 62 and the second cutting line 22 are coaxially disposed
And be slidably connected with opposite another sliding block 21, it is fixedly connected with sliding bar 63 in 62 other end of square column, it is corresponding in square column 62
112 side of side plate be fixedly connected with waveform plate 64, the waveform plate 64 is arranged in parallel with dovetail groove 2, and sliding bar 63 can
It is slided on the wave surface of waveform plate 64；63 outer ring of sliding bar is socketed deep groove ball bearing 7,7 inner ring of deep groove ball bearing with
Sliding bar 63 is fixedly connected, and 7 outer ring of deep groove ball bearing connects on the wave surface of waveform plate 64.Pass through waveform plate
64 wave surface, so that square column 62 horizontally slips when moving, and using the circular groove structure on iron wire surface, to test specimen
Upper and lower end face carry out sawing, improve demoulding efficiency.
Embodiment 2
As shown in Fig. 1, Fig. 4, Fig. 8 and Fig. 9, preceding framed 11 and rear framed 12 upper surface and lower end surface in embodiment 1 are all provided with
Have a sliding slot 5, preceding framed 11 and rear 5 split of framed 12 sliding slot after form annular, slided respectively in the sliding slot 5 of upper surface and lower end surface
One slide post 51 of dynamic installation, two slide posts 51 are connected by U-shaped handle 52, the sliding of U-shaped handle 52 one end and upper surface
Column 51 is fixedly connected, and 52 other end of U-shaped handle is fixedly connected with the slide post 51 of lower end surface, slide post 51 can after split ring
Sliding in the sliding slot 5 of shape；A support plate 53, the support plate 53 of upper and lower two slide posts 51 are fixedly connected on slide post 51
Between be fixedly connected with the first cutting line 54, the first cutting line 54 be fitted in front of framed 11 or rear framed 12 inner sidewall；The upper cover
Kidney slot 55 is equipped on plate 13 and the one of turning of lower cover plate 14, kidney slot 55 is for avoiding slide post 51.In dismounting
After cover board 13 and lower cover plate 14, to hold U-shaped handle 52 and pulled along module outer ring, slide post 51 is slided along the sliding slot 5 of annular, and two
The first cutting line 54 between slide post 51 carries out cutting with the contact surface of mold to test specimen and separates, to further solve test specimen
Lateral surface collapses angle or surface cracks.
Further, first cutting line 54 is wirerope, and wirerope is twisted stock by multilayer steel wire；The sliding slot 5
Waviness, preceding framed 11 recess portion with the protrusion 56 in the sliding slot 5 of rear framed 12 upper end with its lower end sliding slot 5 is arranged in slot bottom
57 are arranged in a one-to-one correspondence.Using the protrusion on wirerope surface and the structure of recess, cooperate the waveform of 5 slot bottom of sliding slot, so that sliding
Dipping and heaving, wirerope carry out sawing up and down reciprocatingly to surface of test piece to dynamic column 51 when moving, improve demoulding efficiency.
One end end that the slide post 51 contacts 5 slot bottom of sliding slot rolls installation ball；52 cross section of U-shaped handle is set
It is set to circle, the middle part outer ring of U-shaped handle 52 is socketed a sleeve 58, sleeve 58 and 52 clearance fit of U-shaped handle.
Framed 12 side is fixedly connected with one group of bolt after preceding framed 11 contact, framed 11 before rear framed 12 contact
Side is equipped with and the one-to-one jack 9 of bolt；The bolt is connect with 9 clearance fit of jack.
Working principle of the present invention is as follows:
Firstly, piecing together steering column for preceding framed 11, rear framed 12,14 closed lower of lower cover plate is used first, in the side of formation
The mixture of the intracavitary injection gypsum and water of shape column, and after sufficiently vibrating, a little butter is smeared in rectangle steel on piece, by it by preceding mould
To wearing in frame 11, rear framed 12 rectangular channel 3；Lower cover plate 14 is installed；Before test specimen is not yet fully cured, rectangle steel disc is extracted；
By pulling or jack is withstood between cross bar 31 and preceding framed 11, so that the second cutting line 22 is with two sliding blocks 21
It is mobile, by the wave surface of waveform plate 64, so that square column 62 horizontally slips when moving, and utilize the ring on iron wire surface
Connected in star structure carries out sawing to the upper and lower end face of test specimen, improves demoulding efficiency, collapse angle to prevent test specimen or surface cracks；
After removing upper cover plate 13 and lower cover plate 14, holds U-shaped handle 52 and pulled along module outer ring, cunning of the slide post 51 along annular
Slot 5 slides, and the first cutting line 54 between two slide posts 51 carries out cutting with the contact surface of mold to test specimen and separates, and completes examination
The demoulding of part.
Although the present invention be illustrated by specific embodiment, it will be appreciated by those skilled in the art that, do not departing from
In the case where the scope of the invention, various transformation and equivalent substitute can also be carried out to the present invention.In addition, being directed to particular condition or material
Material, can do various modifications to the present invention, without departing from the scope of the present invention.Therefore, the present invention is not limited to disclosed tool
Body embodiment, and should include the whole embodiments fallen within the scope of the appended claims.
Claims (7)
1. a kind of mold for crack rocks test specimen, which is characterized in that including preceding framed (11), rear framed (12), upper cover
Plate (13) and lower cover plate (14), preceding framed (11), rear framed (12) structure are identical, and preceding framed (11), rear framed (12) are equal
For U-shaped, preceding framed (11), rear framed (12) can piece together square column, and square cavity is formed inside square column, preceding framed
(11), the middle part of rear framed (12) be equipped with can be by rectangle steel disc to the rectangle worn between preceding framed (11), rear framed (12)
Slot (121)；The upper cover plate (13) identical as lower cover plate (14) structure is rectangular stepped plate, and upper cover plate (13) is used for the side of closing
The upper end of shape column, lower cover plate (14) are used to close the lower end of square column, the upper cover plate (13) and lower cover plate (14) it is opposite two
Side is respectively fixedly connected with a supporting plate (4), and through-hole (41) are arranged in the middle part of the supporting plate (4), in preceding framed (11), rear framed
(12) side is equipped with the first threaded hole (42) of corresponding through-hole (41) setting, penetrates fastening bolt in through-hole (41) and is threadedly coupled
In the first threaded hole (42)；
Preceding framed (11) and rear framed (12) include a vertical plate (111) and two side plates (112), two side plates (112) point
It is not fixedly connected with vertical plate (111) both sides and top edge and lower edge perpendicular to vertical plate (111), on the outside of each side plate (112)
It is equipped with horizontally disposed dovetail groove (2), is slidably connected one in the dovetail grooves (2) of two side plates (112) of rear framed (12)
A sliding block (21) is connected between two sliding blocks (21), in preceding framed (11) and rear framed (12) side by the second cutting line (22)
While being equipped with the mobile cutting groove (23) of evacuation the second cutting line (22)；Two sliding blocks (21) are pushed by actuator (3) and are synchronized
It slides and by framed (11) before being slided in rear framed (12).
2. a kind of mold for crack rocks test specimen according to claim 1, it is characterised in that: the actuator
It (3) include cross bar (31), cross bar (31) side is rotatablely installed two pull rods (32), and screw thread is arranged in pull rod (32) end, often
A sliding block (21) side is respectively provided with the second threaded hole (211), and the axis of the second threaded hole (211) is parallel with dovetail groove (2), and two
Pull rod (32) is correspondingly connected with two sliding blocks (21), and pull rod (32) end, which is threadedly engaged, is connected to corresponding second threaded hole
(211) in.
3. a kind of mold for crack rocks test specimen according to claim 1, it is characterised in that: second cutting
Line (22) is iron wire, and outer ring roll-in forms one group of annular groove.
4. a kind of mold for crack rocks test specimen according to claim 3, it is characterised in that: a cunning wherein
It is slidably connected step column (6) in block (21), the second cutting line (22) one end is fixed through sliding block (21) and with step column (6) one end
Connection, the second cutting line (22) and step column (6) are coaxially disposed, the cylinder between the step and sliding block (21) of step column (6)
On be socketed with support spring (61), the other end of the second cutting line (22) is fixedly connected with square column (62) one end, square column
(62) it is coaxially disposed with the second cutting line (22) and is slidably connected with opposite another sliding block (21), in square column (62) other end
Sliding bar (63) are fixedly connected with, are fixedly connected with waveform plate (64), the wave in corresponding side plate (112) side of square column (62)
Shape wave plate (64) is arranged in parallel with dovetail groove (2), and sliding bar (63) can slide on the wave surface of waveform plate (64).
5. a kind of mold for crack rocks test specimen according to claim 4, it is characterised in that: the sliding bar
(63) outer ring socket deep groove ball bearing (7), deep groove ball bearing (7) inner ring are fixedly connected with sliding bar (63), deep groove ball bearing (7)
Outer ring connects on the wave surface of waveform plate (64).
6. a kind of mold for crack rocks test specimen according to claim 1, it is characterised in that: in preceding framed (11)
The side of (12) framed after contact is fixedly connected with one group of bolt, and the side of framed (11) is equipped with and inserts before rear framed (12) contact
Sell one-to-one jack (9).
7. a kind of mold for crack rocks test specimen according to claim 6, it is characterised in that: the bolt and insert
The connection of hole (9) clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045410.0A CN109813590B (en) | 2019-01-17 | 2019-01-17 | A mould for crack class rock test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045410.0A CN109813590B (en) | 2019-01-17 | 2019-01-17 | A mould for crack class rock test piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109813590A true CN109813590A (en) | 2019-05-28 |
| CN109813590B CN109813590B (en) | 2021-06-08 |
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ID=66604499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910045410.0A Active CN109813590B (en) | 2019-01-17 | 2019-01-17 | A mould for crack class rock test piece |
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| Country | Link |
|---|---|
| CN (1) | CN109813590B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285329A (en) * | 2020-12-31 | 2021-01-29 | 东华理工大学南昌校区 | Geological fracture evolution simulation test system and use method thereof |
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| CN105738187A (en) * | 2016-02-29 | 2016-07-06 | 三峡大学 | Multifunctional three-segment-die stripping device and stripping method thereof |
| CN207014577U (en) * | 2017-07-03 | 2018-02-16 | 长兴康兴石材有限公司 | A kind of thickness trimmer of stone material cuts equipment |
| CN109085034A (en) * | 2018-08-23 | 2018-12-25 | 山东大学 | A kind of standard rock sample prefabricated crack producing device and method |
| CN208333999U (en) * | 2018-03-21 | 2019-01-04 | 河南理工大学 | A kind of double fissure rock triaxial compression test test piece moulds |
| CN209727588U (en) * | 2019-01-17 | 2019-12-03 | 张一桀 | It is a kind of for making the device of crack rocks test specimen |
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2019
- 2019-01-17 CN CN201910045410.0A patent/CN109813590B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060219162A1 (en) * | 2005-04-01 | 2006-10-05 | G.T. Equipment Technologies, Inc. | Solidification of crystalline silicon from reusable crucible molds |
| CN105738187A (en) * | 2016-02-29 | 2016-07-06 | 三峡大学 | Multifunctional three-segment-die stripping device and stripping method thereof |
| CN207014577U (en) * | 2017-07-03 | 2018-02-16 | 长兴康兴石材有限公司 | A kind of thickness trimmer of stone material cuts equipment |
| CN208333999U (en) * | 2018-03-21 | 2019-01-04 | 河南理工大学 | A kind of double fissure rock triaxial compression test test piece moulds |
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| CN209727588U (en) * | 2019-01-17 | 2019-12-03 | 张一桀 | It is a kind of for making the device of crack rocks test specimen |
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| CN112285329A (en) * | 2020-12-31 | 2021-01-29 | 东华理工大学南昌校区 | Geological fracture evolution simulation test system and use method thereof |
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| CN109813590B (en) | 2021-06-08 |
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