CN110080762A - A kind of splitting stick of rock-splitter - Google Patents
A kind of splitting stick of rock-splitter Download PDFInfo
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- CN110080762A CN110080762A CN201910477077.0A CN201910477077A CN110080762A CN 110080762 A CN110080762 A CN 110080762A CN 201910477077 A CN201910477077 A CN 201910477077A CN 110080762 A CN110080762 A CN 110080762A
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- splitting
- rock
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/10—Devices with expanding elastic casings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Sealing Devices (AREA)
Abstract
The present invention discloses a kind of splitting stick of rock-splitter, and splitting stick main body is fabricated from a flexible material.When work, fluid under pressure is acted on inside splitting stick flexible, splitting stick expansion, to squeeze surrounding rock cracking.The present invention is due to the case where as pressure-bearing force-summing element, can avoiding the occurrence of oil leak when cleaving stick discontinuity using flexible material.
Description
Technical field
The present invention relates in mining and engineering construction rock mass splitting and broken field, and in particular to a kind of rock is split
Split the splitting stick of machine.
Background technique
Existing hydraulic rock splitting machine forms (as shown in Figure 1) by hydraulic power unit, hydraulic tube and several splitting sticks, makes
Used time first bores several holes on rock, and then several splitting sticks insert in the hole, are then passed through highly pressurised liquid by pumping plant
In hydraulic tube input splitting stick, splitting stick applies pressure to periphery distending, to hole wall, and rock then splits.
There are three types of forms for the splitting stick of existing rock-splitter: Wedge-type, piston type and two-piece type are (such as Fig. 2-4 institute
Show).No matter which kind of form, pressure-bearing force-summing element is that metallic hard material is made.During the work time, splitting stick is by outside
The reaction force of rock is sometimes uneven and asymmetric, and direction is also not necessarily all radial.Especially split in rock generation
When seam, the reaction force direction applied to splitting stick is rambling.Under the action of irregular force, metal hard pressure-bearing by
Power element can deformation occurs, causes the gap for accommodating the cavity script of highly pressurised liquid to increase, leads to oil leak.It is existing that other are high-strength
Degree hard material production pressure-bearing force-summing element is still difficult to avoid that the generation of the problem.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of splitting stick of rock-splitter, using flexible material as holding
Force-summing element is pressed, specific technical solution is as follows:
A kind of splitting stick of rock-splitter, which is characterized in that the main body of the splitting stick is fabricated from a flexible material, institute
The shore hardness for the flexible material stated is less than 50D.
Further, the main body of the splitting stick is for the sealed liner layer made of flexible rubber-plastic material and by high intensity
The shore hardness of the double-layer structure of the composition of pressure-bearing stress layer made of fibre knitting cloth, the flexible rubber-plastic material is less than 50D,
The tensile strength of the high strength fibre is greater than 100MPa.
Further, the main body of the splitting stick is to be enhanced made of flexible rubber-plastic composite material high strength fibre together
The tensile strength of the single layer structure of Shi Shixian sealing and pressure-bearing stress, the high strength fibre is greater than 100MPa, and described is soft
Property rubber-plastics material shore hardness be less than 50D.
Further, several circumferentially arranged folds of sealed liner layer of the splitting stick, so that fluid under pressure fills
Fold is stretched after full, and the diameter for cleaving stick increases;Or the sealed liner layer of the splitting stick is by elastic rubber-plastic composite material system
At so that fluid under pressure cleaves stick diameter after being full of increases.
Further, several circumferentially arranged folds of pressure-bearing stress layer of the splitting stick, so that fluid under pressure fills
Fold is stretched after full, and the diameter for cleaving stick increases;Or the pressure-bearing stress layer of the splitting stick is woven by high strength fibre
Made of stretch fabric be made so that fluid under pressure cleaves stick diameter after being full of increases, the tension of the high strength fibre is strong
Degree is greater than 100MPa.
Further, the sealing and several circumferentially arranged folds of pressure-bearing stress layer, so that fluid under pressure is full of
Fold is stretched afterwards, and the diameter for cleaving stick increases;Or the sealing and pressure-bearing stress layer are compiled by the high strength fibre
Stretch fabric made of knitting is combined with elastic rubber or elastoplastic, so that fluid under pressure cleaves stick diameter after being full of increases
Greatly, the tensile strength of the high strength fibre is greater than 100MPa.
Further, the splitting stick further includes the anti-cutting layer covered on the outside of the single layer or double-layer structure, described
Anti-cutting layer be cut resistant fibers woven cloth or non-woven fabrics.
Further, several circumferentially arranged folds of the anti-cutting layer, so that fluid under pressure is drawn full of rear fold
It stretches, the diameter for cleaving stick increases;Or the anti-cutting layer woven by cut resistant fibers made of stretch fabric be made so that pressurization
Liquid cleaves stick diameter after being full of increases.
Further, the splitting stick further includes the scalable shell of metal on the outermost side, and the metal can be stretched
The thickness δ of contracting shell meets
Wherein, R0For the integrally-built outer radius of splitting stick, ReLFor the yield strength of the scalable sheathing material of metal, P
For internal liquid maximum pressure.
Further, the scalable shell of the metal overlaps fork by the multiple metal arc lamellas being uniformly arranged in the circumferential direction
Composition, the head of any one metal arc-like sheet are located at the outside of next metal arc-like sheet, and tail portion is located at previous metal arc
The inside of shape piece, so that forming layer overlaps the similar squamaceous structure of fork.
Further, the scalable shell of the metal is made of marmem.
Further, the inlet and outlet position of the pressure-bearing stress layer is by the high strength fibre woven cloth and matrix material
Expect that hard material that is compound, being formed by curing is made, the inlet and outlet position of the pressure-bearing stress layer and the sealed liner layer
Be tightly engaged into, the outside of the pressure-bearing stress layer is tightly engaged into one layer of reinforcing metal layer, the sealed liner layer it is interior
Side is tightly engaged into another layer of reinforcing metal layer, forms the interface of the splitting stick.
Further, side all closely connects with reinforcing metal layer inside and outside the inlet and outlet position of the sealing and pressure-bearing stress layer
It closes, forms the interface of the splitting stick.
Further, at bottleneck position, with the sealed liner layer and the sealing and pressure-bearing stress layer into
The reinforcing metal layer fitting bottleneck bending being tightly engaged on the inside of exit site.
Further, the Import & Export Department of the sealed liner layer and the sealing and the rubber-plastics material of pressure-bearing stress layer is manufactured
Position changes formula and increases hardness, its shore hardness is made to be greater than 50A, in is formationed firmly under soft two-part material.
Further, the outer surface of sealed liner layer, the surfaces externally and internally of pressure-bearing stress layer, sealing and pressure-bearing stress
The outer surface of layer, the inner surface of the scalable shell of surfaces externally and internally, metal of anti-cutting layer are handled through polytetrafluorethylecoatings coatings.
The beneficial effects of the present invention are:
Since the present invention uses flexible material as pressure-bearing force-summing element, uneven by external rock reaction force size
Not for the moment with direction, the pressure-bearing force-summing element only understand deformation will not be damaged, accommodate the gap sealing of the cavity of highly pressurised liquid also not
It will receive the influence of flexible pressure-bearing stress layer deformation, therefore will not oil leak.
Detailed description of the invention
Fig. 1 is existing rock-splitter complete equipment schematic diagram;
Fig. 2 is the operation schematic diagram that existing Wedge-type cleaves stick;
Fig. 3 is the operation schematic diagram of existing piston type splitting stick;
Fig. 4 is the cross section operation schematic diagram of existing two-piece type splitting stick;
Fig. 5 is the overall structure diagram of splitting stick of the invention;
Fig. 6 is the vertical section schematic diagram for cleaving stick of the splitting stick of double-layer structure of the invention, single layer structure;
Fig. 7 is the cross-sectional view of two kinds of forms of the splitting stick of double-layer structure of the invention;
Fig. 8 is the cross-sectional view of two kinds of forms of the splitting stick of single layer structure of the invention;
Fig. 9 is the vertical section schematic diagram of two kinds of forms splitting stick after adding anti-cutting layer;
Figure 10 is the cross-sectional view for adding the splitting stick of the double-layer structure of the anti-cutting layer of two kinds of forms;
Figure 11 is the vertical section schematic diagram of the splitting stick for two kinds of forms after anti-cutting layer, the scalable shell of metal of adding;
Figure 12 is the cross-sectional view that the splitting stick of anti-cutting layer and the scalable shell of metal is added on the basis of Fig. 7;
Figure 13 is the cross-sectional view that the splitting stick of anti-cutting layer and the scalable shell of metal is added on the basis of Fig. 8;
Figure 14 is the inlet and outlet position schematic diagram of the splitting stick of double-layer structure and single layer structure of the present invention.
Specific embodiment
Below according to attached drawing and preferred embodiment the present invention is described in detail, the objects and effects of the present invention will become brighter
It is white.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 1, existing rock-splitter complete equipment includes hydraulic power unit 1, hydraulic tube 2 and cleaves stick 5, it is hydraulic
Pipe 2 is connected between hydraulic power unit 1 and splitting stick 5.Splitting stick 5 has been placed into rock pore 6 in Fig. 1, is illustrated as rock edge
The sectional view of hole axial direction.As shown in Figure 1, when work, first several holes 6 prefabricated on rock, quantity and the splitting stick 5 in hole 6
Quantity is equal.A splitting stick 5 is placed in each hole.Pre-manufactured hole be sized and shaped to splitting stick 5 it is similar and
The wall of pre-manufactured hole can be squeezed after splitting stick 5 slightly expands.Hydraulic tube 2 is high-pressure oil pipe.Splitting machine preferably also comprises
For adjusting the flow of the fluid from hydraulic power unit 1 or the energy distributor 3 of pressure, the energy distributor 3 passes through hydraulic
Pipe 2 is connected between hydraulic power unit 1 and splitting stick 5.Fluid under pressure is from the oil outlet 13 of pumping plant 1 via the upstream tube of hydraulic tube 2
21 enter distributor body 31, the pressurization that distributor body 31 will be obtained from distributor oil inlet 32 by distributor oil inlet 32
Liquid is assigned to the first oil outlet of distributor 33, the second oil outlet of distributor 34, distributor third oil outlet 35 and distributor
Four oil outlets 36.Fluid under pressure pass through respectively these distributor oil outlets via the first branch pipe 22 of pipeline 2, the second branch pipe 23,
Third branch pipe 24 and the 4th branch pipe 25 enter corresponding splitting stick 5.Splitting stick 5 squeezes hole wall after expanding, so that rock
Fragmentation.It should be pointed out that all parts in Fig. 1 were not necessarily drawn to scale.It, will in order to preferably show details
The illustrated dimensions of splitting stick 5 are expanded.
Fig. 2 is the structural schematic diagram of Wedge-type splitting stick in the prior art.The splitting stick includes piston hydraulic cylinder 1, opposite direction
Sliding block 2 and center wedge 3.It is mainly piston inside piston hydraulic cylinder 1, one is made in the piston and center wedge 3.Opposite sliding block
2 have two pieces, and opposite each other and center wedge 3 fits together.The connection of opposite sliding block 2 and 1 bottom of piston hydraulic cylinder is activity
Connection, can slide in the horizontal direction.The component is made of high strength alloy steel.When work, sliding block wedge combinations are put
Enter in prefabricated rock pore 4, the diameter in hole 4 is prefabricated into slightly larger than sliding block wedge combinations.When fluid under pressure enters piston hydraulic cylinder 1
When, piston is pushed downward movement, and integrated center wedge 3 is made with piston and is also pushed downward movement.Due to center wedge 3
It is that contact of incline plane is bonded with opposite sliding block 2, when center wedge 3 moves down, left and right directions can be generated to opposite sliding block 2 and pushed away
Power.Opposite sliding block 2 has been arranged to slide, therefore opposite sliding block 2 can separate two sides to the left and right, contact and squeeze rock pore
4 walls, make rock crack.In actual use, since execution conditions are limited, on rock, prefabricated 4 shape of hole is not often
Rule has inclined hole, the appearance of curved hole sometimes, this results in rock to be applied to the reaction force of sliding block wedge combinations in addition to the direction F1
There are also the directions F2 in addition.The power in the direction F2 will lead to sliding block wedge combinations, and deformation occurs and positional shift.Due to 3 He of center wedge
Piston is one, piston also can deformation and positional shift, under high pressure, 1 oil leak of piston hydraulic cylinder.In addition, the power in the direction F1 is everywhere
Also and it is unequal, it can equally cause the miniature deformation of sliding block wedge combinations and piston, lead to 1 oil leak of piston hydraulic cylinder.
Fig. 3 is the structural schematic diagram of piston type splitting stick in the prior art.The splitting head of this kind of form includes 1 He of hydraulic cylinder
Several pistons 2 composition.Piston 2 and the contact surface of hydraulic cylinder 1 seal.The component is made of high strength alloy steel.
When work, splitting stick is put into prefabricated rock pore 3, the diameter when diameter in hole 3 is prefabricated into slightly larger than splitting stick release.When
When fluid under pressure enters hydraulic cylinder 1, piston 2, which is pushed, to be stretched out, and is contacted and is squeezed 3 wall of rock pore, make rock crack.Equally, exist
In actual use, since execution conditions are limited, prefabricated 3 shape of hole is often also irregular on rock.It deposits in the curved hole of inclined hole
And rock itself there is crack when, being applied to the reaction force of piston 2, there are also the directions F2 other than the direction F1.The side F2
To power will lead to piston 2 miniature deformation and positional shift, at this time original sealing occur and cannot prevent 1 inner fluid of hydraulic cylinder
Leakage, equipment failure.
Fig. 4 is the cross section operation schematic diagram of two-piece type splitting stick.It is cylindrical body that this kind, which cleaves stick appearance, is illustrated as transversal
Face schematic diagram of internal structure.The splitting stick includes pressure-bearing stress shell 51 and 55, opposed voussoir 52 and 54 and receiving liquid
Sebific duct 53.In addition to sebific duct 53, remaining part is made of high strength alloy steel.Pressure-bearing stress shell 51 and 55 and opposed wedge
Block 52 and 54 surrounds a cavity jointly, and inside holds highly pressurised liquid.Elastic rubber tube plays fluid partitioning and metal cavity,
It also seals simultaneously.When work, splitting stick is put into prefabricated rock pore, the diameter in hole is prefabricated into slightly larger than splitting stick
Diameter when release.When fluid under pressure enters sebific duct 53, sebific duct 53 expands and squeezes pressure-bearing stress shell 51 and 55 and wedge
Block 52 and 54 separates pressure-bearing stress shell 51 and 55 to both sides, and voussoir 52 and 54 is also to both sides slide apart.Pressure-bearing stress shell
Body 51 and 55 contacts and squeezes hole wall, makes rock crack.Similarly, in actual use, hole shape prefabricated on rock
Shape is often irregular.The reaction force size that rock is applied to pressure-bearing stress shell 51 and 55 is uneven, direction is different, leads to pressure-bearing
Deformation occurs for stress shell 51 and 55, and the gap between pressure-bearing stress shell 51 and 55 and voussoir 52 and 54 becomes larger, and sebific duct 53 exists
Internal liquid breaking under high pressures, causes oil leak.
Fig. 5 is the overall structure diagram of splitting stick of the invention.It should be pointed out that Fig. 5-14 all parts be not by than
What example was drawn, therefore, the illustrated dimensions in figure between all parts are not intended to carry out the size and relative size of component dark
Show or limits.The main body of splitting stick of the invention is fabricated from a flexible material, and the shore hardness of the flexible material is less than
50D.The splitting stick of the application is elongate cylinder bottle shape, and one or two inlet and outlet are arranged at top, by quick coupling with it is hydraulic
Pipeline is connected, and lower part is bottom.Here it only describes in detail by taking the inlet and outlet form of one, top as an example.
Fig. 6 is the vertical section schematic diagram for cleaving stick of the splitting stick of double-layer structure of the invention, single layer structure;
As one of embodiment, referred to as embodiment one, as shown in Figure 6 a, to be sealed made of flexible rubber-plastic material
Liner layer 1 and the double-layer structure that pressure-bearing stress layer 2 forms made of high strength fibre woven cloth, the flexible rubber-plastic material
Shore hardness be less than 50D, the tensile strength of the high strength fibre is greater than 100MPa.Highly pressurised liquid to the pressure of layer wall by
High strength fibre woven cloth undertakes, while the reaction force of rock is also undertaken by high strength fibre woven cloth, internal rubber-plastics material
Play sealing liquid effects.High strength fibre woven cloth is both flexible material, while having very high tensile strength again, completely can be with
Bear internal high pressure liquid and external rock pressure applied.Flexible material is uneven by external rock reaction force size
Only deformation for the moment with direction will not be damaged, and the gap sealing for accommodating the cavity of highly pressurised liquid is imported and exported in sealed liner layer 1
Position will not be influenced by flexible pressure-bearing stress layer 2 and the deformation of sealed liner layer 1, therefore will not oil leak.
The inlet and outlet position of the pressure-bearing stress layer 2 is to be answered by the high strength fibre woven cloth with basis material
The hard material close, being formed by curing is made.Interfacial reaction occurs for high strength fibre and basis material, is chemically firmly combined
Together, uniform whole hard material is formed.Through this processing, the pressure-bearing stress layer 2 become it is upper it is hard under soft two-part material.
The basis material can be thermosetting resin such as epoxy resin, phenolic resin, and thermoplastic resin such as polyether-ether-ketone, rubber is ceramic,
Metal etc. is all to be suitable for the matrix compound with high strength fibre.The pressure-bearing stress layer 2 and the sealed liner layer 1 into
Exit site is tightly engaged into, and the outside of the pressure-bearing stress layer 2 is tightly engaged into one layer of reinforcing metal layer 4, the sealing
The inside of liner layer 1 is tightly engaged into another layer of reinforcing metal layer 3.Juncture is that socket joint is connected or is threadedly coupled, and is all made of
Interference fit.Form the interface of the splitting stick.
When splitting machine works, this splitting stick is put into rock pore, fluid under pressure acts on inside sealed liner layer 1, makes
Sealed liner layer 1 and pressure-bearing stress layer 2 expand jointly, to squeeze surrounding rock cracking.
As another embodiment, referred to as it is multiple for high strength fibre enhancing rubber and plastic to cleave stick as shown in Figure 6 b for embodiment two
Flexible sealing made of condensation material and pressure-bearing stress layer 5, the tensile strength of the high strength fibre is greater than 100MPa, described
The shore hardness of flexible rubber-plastic material is less than 50D, and interfacial reaction occurs for high strength fibre braiding or winding cloth and rubber-plastics material, with
Chemical mode is firmly combined together, forms uniform integral material.Wherein, high strength fibre braiding or winding cloth are skeletons,
Play stress, rubber-plastics material, which serves, combines joint filling.Highly pressurised liquid is answered the pressure of layer wall by high strength fibre enhancing rubber and plastic
Condensation material undertakes, while the reaction force of rock is also undertaken by high strength fibre enhancing composite rubber-plastic material, and the high intensity
Fiber reinforcement composite rubber-plastic material also plays sealing liquid effects.It is both flexible material that the high strength fibre, which enhances composite rubber-plastic material,
Material, while there is very high tensile strength again, internal high pressure liquid and external rock pressure applied can be born completely.It is soft
Property material only do not understood deformation for the moment by external rock reaction force size unevenness and direction will not be damaged, accommodate highly pressurised liquid
Cavity gap sealing is in sealing and pressure-bearing stress layer 5 imports and exports position, will not be deformed by this layer 5 be influenced, therefore
It will not oil leak.
It is tightly engaged on the inside of the inlet and outlet position of the sealing and pressure-bearing stress layer 5 with reinforcing metal layer 3, outer layer and gold
Belong to reinforcing layer 4 to be tightly engaged into, form the interface of the splitting stick, juncture is that socket joint is connected or is threadedly coupled, and is all made of
Interference fit.It should be pointed out that the present invention, which focuses on, provides new material and new construction as pressure-bearing force-summing element, therefore in diagram
Also the design structure of main presentation pressure-bearing force-summing element and sealing element, the inlet and outlet for cleaving pole member are only substantially drawn, and
Detailed illustration is not done.
When splitting machine works, this splitting stick is put into rock pore, fluid under pressure acts in sealing and pressure-bearing stress layer 5
Portion makes its expansion, to squeeze surrounding rock cracking.
Preferably, as shown in figure 14, at bottleneck position, with the sealed liner layer 1 and the sealing and pressure-bearing
Long and curved tabletting, fitting bottleneck bending is made in the reinforcing metal layer 3 being tightly engaged on the inside of the inlet and outlet position of stress layer 5.
When internal liquid pressure F acts on the tabletting, elastic deformation occurs for metal, and tabletting position shifts up to compress in sealing
Lining 1 or sealing and pressure-bearing stress layer 5, further function as sealing function.
Flexible pressure-bearing stress layer 2 in the embodiment of the present invention one, the high strength fibre woven cloth use carbon fiber, aramid fiber
All high strength fibres such as fiber, ultra high molecular weight polyethylene fiber, boron fibre, glass fibre, polyester fiber, Fypro
One or more of braiding be made, which can have several layers.Sealed liner layer 1 is with flexible rubber or flexiplast material
Material is made, and the rubber or plastic material can be flexible all kinds of synthetic rubber, natural rubber, reclaimed rubber, thermoplastic elastomehc
Property body, general-purpose plastics, engineering plastics, thermosetting plastics etc..
Flexible sealing and pressure-bearing stress layer 5 in the embodiment of the present invention two, the high strength fibre enhancing rubber and plastic are compound
Fiber cloth in material is fine using carbon fiber, aramid fiber, ultra high molecular weight polyethylene fiber, boron fibre, glass fibre, polyester
The braiding of one or more of all high strength fibres such as dimension, Fypro or winding are made, while compound with rubber-plastics material
It is integrated.The braiding or winding cloth can have several layers.The rubber-plastics material can be flexible all kinds of rubber and plastics.
Fig. 7 is the cross-sectional view of two kinds of forms of the splitting stick of double-layer structure of the invention, the splitting stick
Several the circumferentially arranged folds of sealed liner layer 1, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases
Greatly;Or the sealed liner layer 1 of the splitting stick is made of elastic rubber or elastic plastic material, so that fluid under pressure is full of
The diameter for cleaving stick afterwards increases;Several circumferentially arranged folds of pressure-bearing stress layer 2 of the splitting stick, so that fluid under pressure
It is stretched full of rear fold, the diameter for cleaving stick increases;Or the pressure-bearing stress layer 2 of the splitting stick is compiled by high strength fibre
Stretch fabric made of knitting is made, so that fluid under pressure cleaves stick diameter after being full of increases, the tension of the high strength fibre
Intensity is greater than 100MPa.Two kinds of forms of above-mentioned double-layer structure can any combination.
When work, which is put into prefabricated rock pore, the diameter in hole is prefabricated into slightly larger than splitting stick diameter.When
When fluid under pressure enters splitting stick, the fold for cleaving stick is gradually evened up stretching, extension or diameter becomes larger, and whole equipment diameter gradually becomes
Greatly until contact hole wall, continues pressurization and crack to squeeze surrounding rock.During being somebody's turn to do, internal high pressure liquid is to the splitting
The reaction force that the immense pressure and external rock that pole member applies generate it is undertaken by flexible pressure-bearing stress layer 2.It is high-strength
It spends fibre knitting cloth and uses advanced method close-woven, allow flexible sealing liner layer 1 made of rubber-plastics material to this
The hole of woven cloth is sealed, and highly pressurised liquid is sealed among sealed liner layer 1 and will not leak.When the splitting pole member is swollen
It is swollen to 2 full extension of pressure-bearing stress layer when, work stops and release, and splitting stick retracts original state.
Fig. 8 is the cross-sectional view of two kinds of forms of the splitting stick of single layer structure of the invention, the sealing and is held
Several the circumferentially arranged folds of stress layer 5 are pressed, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases;
Or sealing and pressure-bearing stress layer 5 stretch fabric and elastic rubber or the elasticity as made of the high strength fibre braiding
Plastics are combined, so that fluid under pressure cleaves stick diameter after being full of increases, the tensile strength of the high strength fibre is big
In 100MPa.
When work, which is put into prefabricated rock pore, the diameter in hole is prefabricated into slightly larger than splitting stick diameter.When
When fluid under pressure enters splitting stick, the fold for cleaving stick is gradually evened up stretching, extension or diameter becomes larger, and whole equipment diameter gradually becomes
Greatly until contact hole wall, continues pressurization and crack to squeeze surrounding rock.During being somebody's turn to do, internal high pressure liquid is to the splitting
The immense pressure and external rock that pole member applies it is generated reaction force is by sealing and pressure-bearing stress layer 5 undertakes.With
Advanced method close-woven or winding are used to enhance high strength fibre braiding or the winding cloth of rubber-plastics material, so that rubber and plastic material
Material can be sealed filling to the hole of the braiding or winding cloth, and highly pressurised liquid is sealed in sealing and pressure-bearing stress layer 5
It will not leak.When the splitting pole member is expanded into sealing and pressure-bearing 5 full extension of stress layer, work stops and release, splitting
Stick retracts original state.
Either embodiment one or two, pressure-bearing force-summing element are that flexible material is made.In actual use, it meets
When having crack to pre-manufactured hole in irregular shape (such as inclined hole, curved hole) or rock, although splitting stick is everywhere by external rock
Reaction force size is uneven, direction is different, pressure-bearing stress layer 2 is together with sealed liner layer 1 or is sealing and pressure-bearing stress layer 5
Various deformation occur everywhere, will not result in cylinder body oil leak.
It should here be noted that sealing and holding shown in sealed liner layer shown in Fig. 71 and pressure-bearing stress layer 2 and Fig. 8
The fold quantity of pressure stress layer 5 can have several, it is not limited to 4 of diagram.
Fig. 9 is the vertical section schematic diagram of two kinds of forms splitting stick after adding anti-cutting layer, and the splitting stick further includes
The anti-cutting layer 6 on the outside of the single layer or double-layer structure is covered, the anti-cutting layer 6 is cut resistant fibers woven cloth or nonwoven
Cloth, cutting resistance are higher than 4 grades of national standard.When work, splitting stick expands so that rock pore cracks, and due to cracking, lines is irregular, meeting
Generate the avalanche of fritter rubble.The sharp edges of rubble will apply very big cutting force and needle to splitting stick under immense pressure
Power is pierced, causes splitting stick impaired.
The anti-cutting layer 6 is all by ultra high molecular weight polyethylene fiber, aramid fiber, metallic fiber, glass fibre etc.
Non-woven fabrics made of woven cloth made of long fibre braiding in cut resistant fibers or staple fiber bonding are reinforced is made.No matter
Woven cloth or non-woven fabrics can be single fiber production, be also possible to several fiber mixing weavings or bonding and reinforcement is made.
Above-mentioned fiber has very high cut resistant intensity, and the cloth of formation also has certain punctured resistance, can splitting stick by
Protect internal stress and sealing element unlikely impaired when external rubble is cut.
The anti-cutting layer 6 is bag-shape.The fixing means of 6 oral area of anti-cutting layer can be binding, bonding or plus sclerosphere
Mouth blocks a variety of simple methods such as internal bottleneck.
Figure 10 is the cross-sectional view for adding the splitting stick of the double-layer structure of the anti-cutting layer of two kinds of forms, the anti-cutting
6 several circumferentially arranged folds of layer, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases;Or institute
Stretch fabric made of the anti-cutting layer 6 stated is woven by cut resistant fibers is made, so that fluid under pressure cleaves stick diameter after being full of increases
Greatly.The deformation principle of anti-cutting layer 6 is identical as sealed liner layer 1.Two kinds of forms of above-mentioned anti-cutting layer 6 can with pressure-bearing stress layer 2,
The various forms of sealed liner layer 1 and sealing and pressure-bearing stress layer 5 arbitrarily matches.
Figure 11 is the vertical section schematic diagram of the splitting stick for two kinds of forms after anti-cutting layer, the scalable shell of metal of adding.Institute
The scalable shell 7 of the metal stated is located at the outermost layer of splitting stick, is cylindrical shape, is made of at least 1 shell.These shells are set
Scalable form is calculated as to play expansion.When work, splitting stick expands so that rock pore cracks, since cracking lines is not advised
Then, fritter rubble avalanche can be generated.The sharp edges of rubble will apply very big cutting force to splitting stick under immense pressure
Power is pierced with needle, causes splitting stick impaired.It covers in sealed liner layer 1 and pressure-bearing stress layer 2 or sealing and 5 outside of pressure-bearing stress layer
Anti-cutting layer 6, due to being made of the made cloth of fibrous material, protective capacities is relatively weak, meets external king-sized cutting
It can also occur damaged and fail when power and needle thorn power.The scalable shell 7 of metal is located at the outermost layer of splitting stick, and other elements are complete
Portion protects.Metal material has stronger anti-shearing force and puncture resistant power, it can be ensured that the internal element based on fiber
From damage.When work, due to unbalance stress, scalable shell 7 can deformation occurs for metal, and the sharp edge of shell, which can tilt, to be cut
Internally element, the role transformation of anti-cutting layer 6 is the cutting for preventing shell rim at this time, protects internal stress and sealing element.
The scalable shell 7 of the metal is made of at least 1 shell, the flexible position precision-fit between shell, in this way
When splitting stick is designed as the scalable shell of only metal and inner containment layer double-layer structure by we, in the close of inner containment layer
Envelope acts on lower internal high pressure liquid will not stretch the gap exudation at position from shell.R0For the splitting stick integrally-built outer half
Diameter, ReLFor the yield strength of the scalable sheathing material of metal, P is internal liquid maximum pressure.When the thickness of the scalable shell of metal
DegreeWhen, the outer cover intensity is sufficiently large, internal highly pressurised liquid pressure and external rock it is anti-
It will not deform under the action of active force, be designed as the scalable shell of only metal and inner containment layer two in above-mentioned splitting stick
Highly pressurised liquid will not leak out when layer structure.When the thickness of the scalable shell of metalWhen, the shell
Intensity is insufficient, and deformation can be generated under the action of external and internal pressure, leads to position of stretching between the shell of the scalable shell of the metal
Gap increases, the precision-fit failure between shell, equally when above-mentioned splitting stick only has double-layer structure in internal highly pressurised liquid
Extrusion can be destroyed from the gap between shell by acting on lower sealant, fluid seepage.Therefore the scalable shell 7 of metal
ThicknessWhen, which uses the pressure-bearing force-summing element that cannot function as splitting stick, golden at this time
Belong to flexible pressure-bearing stress layer 2 or flexible sealing and pressure-bearing stress layer 5 inside scalable shell 7 will serve pressure-bearing stress.
Due to idea of the invention is that the flexible pressure-bearing force-summing element of offer, provides the scalable shell 7 of the metal
Thickness δ meets
Wherein, R0For the radius of the splitting stick, ReLFor the yield strength of sheathing material, P is internal liquid maximum pressure.
If the thickness of the scalable shell 7 of metalExternal and internal pressure is held by the shell 7
Load, inner flexible pressure-bearing force-summing element will lose meaning.The benefit obtained simultaneously is that metal can
The outer casing thickness of the other forms splitting stick of the thickness of telescopic shell 7 than in the prior art is much smaller, and such first can mitigate
Stick weight is cleaved, second can increase splitting stick internal capacity, increase internal liquid active area, improve output pressure.
Preferably, the scalable shell 7 of the metal overlaps fork by circumferentially arranged multiple metal arc lamellas and forms,
The head of any one metal arc-like sheet is located at the outside of next metal arc-like sheet, and tail portion is located at previous metal arc-like sheet
Inside, so that forming layer overlaps the similar squamaceous structure of fork.Scale is at least a piece of, i.e. cylinder one opening;Two
Piece is open with regard to two ..., and scale quantity is more, and the flexibility of the shell 7 is bigger, the hole wall of easier fitting deformation.
Preferably, each cycloid scale piece of the shell 7 is all fixed on elastic rubber ring 9, and scale is opened.Per a piece of scale
Upper bend become it is hook-shaped, hang on rubber ring 9.It is interconnected between a few circle rubber rings 9 with rubber covered wire, forms the bone of scale attachment
Frame net.The binding of skeleton top is suspended on short shell 8 made of elastic material.Short shell 8 is fixed on pressure-bearing stress layer 2 or close
The inlet and outlet position of envelope and pressure-bearing stress layer 5, fixed form, which can be, any ways such as pinions, is bonded or blocks.
The material of the scalable shell 7 of the metal is marmem such as Ti-Ni alloy etc..Marmem is made
At normal temperature by external hole wall extruding force size is uneven, deformation occurs for the moment in direction, flexibility of stretching becomes the shell 7
Difference can restore original shape again after being heated to certain temperature, can put back into.
Figure 12 is the cross-sectional view that the splitting stick of anti-cutting layer and the scalable shell of metal is added on the basis of Fig. 7.
As one of embodiment, referred to as embodiment one, as shown in Figure 12 ab, sealed liner layer 1 when emptying release inside splitting stick,
Pressure-bearing stress layer 2 and anti-cutting layer 6 have several folds, and the scalable shell 7 of metal is also at compact state, whole equipment diameter compared with
It is small.When work, which is put into prefabricated rock pore, the diameter in hole is prefabricated into slightly larger than splitting stick diameter.Work as pressurization
When liquid enters sealed liner layer 1, the fold of sealed liner layer 1, pressure-bearing stress layer 2 and anti-cutting layer 6 is gradually evened up stretching, extension, patch
Alloy belongs to scalable shell 7 and its shell pieces is driven to stretch out, and whole equipment diameter becomes larger until contact hole wall, continues to add
Pressure is to squeeze surrounding rock cracking.When the splitting pole member is expanded into pressure-bearing 2 full extension of stress layer, work stops and unloads
Pressure, sealed liner layer 1, pressure-bearing stress layer 2 and anti-cutting layer 6 retract original state and generate fold, and scalable 7 shell pieces of shell of metal tightens,
Whole equipment diameter becomes smaller reinstatement.As another embodiment, referred to as embodiment two cleaves in stick as shown in Figure 12 cd
Elastic packing liner layer 1, elastic pressure-bearing stress layer 2 and elastic anti-cutting layer 6 are in minor diameter state when portion is vented release, and metal can
Telescopic shell 7 is also at compact state, and whole equipment diameter is smaller.When work, which is put into prefabricated rock pore,
The diameter in hole is prefabricated into slightly larger than splitting stick diameter.When fluid under pressure enters sealed liner layer 1, sealed liner layer 1, pressure-bearing by
Power layer 2 and anti-cutting layer 6 are thicker since own resilient is softened, and the scalable shell 7 of fitting metal simultaneously drives its shell pieces to stretch out, entirely
Device diameters become larger until contact hole wall, continues pressurization to squeeze surrounding rock cracking.When the splitting pole member
When being expanded into the elastic force of pressure-bearing stress layer 2 and being fully withdrawn, work stops and release, sealed liner layer 1, pressure-bearing stress layer 2 and anti-
It cuts layer 6 to become smaller since own resilient retraction original state attenuates, scalable 7 shell pieces of shell of metal tightens, and whole equipment diameter becomes smaller extensive
Restore shape.
Figure 13 is the cross-sectional view that the splitting stick of anti-cutting layer and the scalable shell of metal is added on the basis of Fig. 8.
As one of embodiment, referred to as embodiment one, as shown in Figure 13 ab, splitting stick inside emptying release when sealing and pressure-bearing by
Power layer 5 and anti-cutting layer 6 have several folds, and the scalable shell 7 of metal is also at compact state, and whole equipment diameter is smaller.Work
When, which is put into prefabricated rock pore, the diameter in hole is prefabricated into slightly larger than splitting stick diameter.When fluid under pressure enters
When sealing and pressure-bearing stress layer 5, seals and the fold of pressure-bearing stress layer 5 and anti-cutting layer 6 is gradually evened up stretching, extension, fitting metal can
Telescopic shell 7 simultaneously drives its shell pieces to stretch out, and whole equipment diameter becomes larger until contact hole wall, continues pressurization to squeeze
Press surrounding rock cracking.When the splitting pole member is expanded into sealing and pressure-bearing 5 full extension of stress layer, work stops and unloads
Pressure, sealing and pressure-bearing stress layer 5 and anti-cutting layer 6 retract original state and generate fold, and scalable 7 shell pieces of shell of metal is tightened, entirely set
Standby diameter becomes smaller reinstatement.As another embodiment, referred to as embodiment two is vented inside splitting stick as shown in Figure 13 cd
Elastic packing and pressure-bearing stress layer 5 and elastic anti-cutting layer 6 are in minor diameter state when release, and the scalable shell 7 of metal is also at
Compact state, whole equipment diameter are smaller.When work, which is put into prefabricated rock pore, the diameter in hole is prefabricated into
Slightly larger than splitting stick diameter.When fluid under pressure enters sealing and pressure-bearing stress layer 5, sealing and pressure-bearing stress layer 5 and anti-cutting layer 6
Since own resilient is softened thicker, the scalable shell 7 of fitting metal simultaneously drives its shell pieces to stretch out, and whole equipment diameter gradually becomes
Greatly until contact hole wall, continues pressurization and crack to squeeze surrounding rock.When the splitting pole member is expanded into sealing and holds
When the elastic force of pressure stress layer 5 is fully withdrawn, work stops and release, seals and pressure-bearing stress layer 5 and anti-cutting layer 6 are due to itself bullet
Power retracts original state and attenuates and becomes smaller, and scalable 7 shell pieces of shell of metal tightens, and whole equipment diameter becomes smaller reinstatement.
Preferably, the Import & Export Department of the sealed liner layer 1 and the sealing and the rubber-plastics material of pressure-bearing stress layer 5 is manufactured
Position changes formula and increases hardness, its shore hardness is made to be greater than 50A, in is formationed firmly under soft two-part material.Lower flexible in order to
Expansion is played, top hard preferably seals to import and export position.The equipment sealing means of super-pressure should be selected hard close
Envelope, soft rubber-plastics material lose sealing performance under super-pressure.
Preferably, in order to reduce coefficient of friction, extend service life of equipment, the outer surface of the sealed liner layer 1 is held
Press the surfaces externally and internally of stress layer 2, the outer surface of sealing and pressure-bearing stress layer 5, the surfaces externally and internally of anti-cutting layer 6, metal scalable outer
The inner surface of shell 7 is handled through polytetrafluorethylecoatings coatings.
It will appreciated by the skilled person that being not used to limit the foregoing is merely the preferred embodiment of invention
System invention, although invention is described in detail referring to previous examples, for those skilled in the art, still
It can modify to the technical solution of aforementioned each case history or equivalent replacement of some of the technical features.It is all
Within the spirit and principle of invention, modification, equivalent replacement for being made etc. be should be included within the protection scope of invention.
Claims (16)
1. a kind of splitting stick of rock-splitter, which is characterized in that the main body of the splitting stick is fabricated from a flexible material, described
Flexible material shore hardness be less than 50D.
2. the splitting stick of rock-splitter according to claim 1, which is characterized in that the main body of the splitting stick is served as reasons
Two layers of knot that sealed liner layer made of flexible rubber-plastic material and the pressure-bearing stress layer made of high strength fibre woven cloth form
Structure, the shore hardness of the flexible rubber-plastic material are less than 50D, and the tensile strength of the high strength fibre is greater than 100MPa.
3. the splitting stick of rock-splitter according to claim 1, which is characterized in that the main body of the splitting stick is served as reasons
High strength fibre enhancing flexible rubber-plastic composite material realizes the single layer structure of sealing and pressure-bearing stress, the height while being made
The tensile strength of strength is greater than 100MPa, and the shore hardness of the flexible rubber-plastic material is less than 50D.
4. the splitting stick of rock-splitter according to claim 2, which is characterized in that the sealed liner of the splitting stick
Several circumferentially arranged folds of layer, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases;Or it is described
The sealed liner layer of splitting stick be made of elastic rubber-plastic composite material so that fluid under pressure cleaves stick diameter after being full of increases.
5. the splitting stick of rock-splitter according to claim 2, which is characterized in that the pressure-bearing stress of the splitting stick
Several circumferentially arranged folds of layer, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases;Or it is described
Splitting stick pressure-bearing stress layer woven by high strength fibre made of stretch fabric be made so that fluid under pressure cleaves stick after being full of
Diameter increase, the tensile strength of the high strength fibre is greater than 100MPa.
6. the splitting stick of rock-splitter according to claim 3, which is characterized in that the sealing and pressure-bearing stress layer
Several circumferentially arranged folds, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases;Or it is described
Sealing and pressure-bearing the stress layer stretch fabric as made of the described high strength fibre braiding and elastic rubber or elastoplastic it is compound and
At so that fluid under pressure cleaves stick diameter after being full of increases, the tensile strength of the high strength fibre is greater than 100MPa.
7. the splitting stick of rock-splitter according to claim 2 or 3, which is characterized in that the splitting stick further includes
The anti-cutting layer on the outside of the single layer or double-layer structure is covered, the anti-cutting layer is cut resistant fibers woven cloth or non-woven fabrics.
8. the splitting stick of rock-splitter according to claim 7, which is characterized in that the anti-cutting layer is circumferentially arranged
Several folds, so that fluid under pressure is stretched full of rear fold, the diameter for cleaving stick increases;Or the anti-cutting layer is by resistance to
Stretch fabric made of cutting fibre braiding is made, so that fluid under pressure cleaves stick diameter after being full of increases.
9. the splitting stick of rock-splitter according to claim 7, which is characterized in that the splitting stick further includes being located at
The thickness δ of the outermost scalable shell of metal, the scalable shell of the metal meets
Wherein, R0For the integrally-built outer radius of splitting stick, ReLFor the yield strength of the scalable sheathing material of metal, P is interior
Portion's liquid maximum pressure.
10. the splitting stick of rock-splitter according to claim 9, which is characterized in that the scalable shell of the metal
It overlaps fork by the multiple metal arc lamellas being uniformly arranged in the circumferential direction to form, the head of any one metal arc-like sheet is located at next
The outside of a metal arc-like sheet, tail portion is located at the inside of previous metal arc-like sheet, so that forming layer overlaps the similar scale of fork
The structure of shape.
11. the splitting stick of rock-splitter according to claim 10, which is characterized in that the scalable shell of the metal
It is made of marmem.
12. the splitting stick of rock-splitter according to claim 2, which is characterized in that the pressure-bearing stress layer into
The hard material that exit site is compound by the high strength fibre woven cloth and basis material, is formed by curing is made, described
Pressure-bearing stress layer and the inlet and outlet position of the sealed liner layer are tightly engaged into, the outside of the pressure-bearing stress layer with one layer
Reinforcing metal layer is tightly engaged into, and the inside of the sealed liner layer is tightly engaged into another layer of reinforcing metal layer, described in formation
Splitting stick interface.
13. the splitting stick of rock-splitter according to claim 3, which is characterized in that the sealing and pressure-bearing stress
Side is all tightly engaged into reinforcing metal layer inside and outside the inlet and outlet position of layer, forms the interface of the splitting stick.
14. the splitting stick of rock-splitter according to claim 12 or 13, which is characterized in that at bottleneck position, with
The reinforcing metal layer being tightly engaged on the inside of the inlet and outlet position of the sealed liner layer and the sealing and pressure-bearing stress layer
It is bonded bottleneck bending.
15. the splitting stick of rock-splitter according to claim 2 or 3, which is characterized in that manufacture the sealed liner layer
Change formula with the inlet and outlet position of the sealing and the rubber-plastics material of pressure-bearing stress layer and increase hardness, is greater than its shore hardness
50A, soft two-part material under hard in formation.
16. the splitting stick of rock-splitter according to claim 11, which is characterized in that outside the sealed liner layer
Surface, the surfaces externally and internally of pressure-bearing stress layer, sealing and the outer surface of pressure-bearing stress layer, the surfaces externally and internally of anti-cutting layer, metal can be stretched
The inner surface of contracting shell is handled through polytetrafluorethylecoatings coatings.
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PCT/CN2020/092119 WO2020244406A1 (en) | 2019-06-03 | 2020-05-25 | Splitting rod of rock splitting machine |
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CN111305840A (en) * | 2020-04-13 | 2020-06-19 | 张小康 | An anti-damage directional flexible rock breaking device |
CN111715368A (en) * | 2020-06-17 | 2020-09-29 | 成都易合元科技有限公司 | A flexible rock splitting device and its manufacturing method |
WO2020244406A1 (en) * | 2019-06-03 | 2020-12-10 | 张薇 | Splitting rod of rock splitting machine |
CN113338793A (en) * | 2021-05-24 | 2021-09-03 | 中国地质大学(武汉) | Drilling splitter based on 4D printing technology and manufacturing method thereof |
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WO2020244406A1 (en) * | 2019-06-03 | 2020-12-10 | 张薇 | Splitting rod of rock splitting machine |
CN111305840A (en) * | 2020-04-13 | 2020-06-19 | 张小康 | An anti-damage directional flexible rock breaking device |
CN111715368A (en) * | 2020-06-17 | 2020-09-29 | 成都易合元科技有限公司 | A flexible rock splitting device and its manufacturing method |
CN113338793A (en) * | 2021-05-24 | 2021-09-03 | 中国地质大学(武汉) | Drilling splitter based on 4D printing technology and manufacturing method thereof |
CN114474419A (en) * | 2022-01-18 | 2022-05-13 | 长沙百川超硬材料工具有限公司 | Automatic wedge beating device of wire saw machine and wire saw machine composed of same |
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CN116717251A (en) * | 2023-06-06 | 2023-09-08 | 湖南烈岩科技有限公司 | Rock breaking cylinder and cylinder type expansion rock breaking system |
CN117145469A (en) * | 2023-10-27 | 2023-12-01 | 华侨大学 | Rock expansion and crushing device for tunnel construction and use method thereof |
CN117145469B (en) * | 2023-10-27 | 2023-12-26 | 华侨大学 | Rock expansion and crushing device for tunnel construction and use method thereof |
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WO2020244406A1 (en) | 2020-12-10 |
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