CN112012739A

CN112012739A - Hydraulic fracturing rod for rock layer exploitation

Info

Publication number: CN112012739A
Application number: CN202010841444.3A
Authority: CN
Inventors: 王伟承
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-12-01

Abstract

The invention relates to the technical field of rock mining, and discloses a hydraulic fracturing rod for rock layer mining, which comprises a rod body, wherein handles are fixedly arranged on two sides of the top of the rod body, a hydraulic port is formed in the middle of the top of the rod body, a vibration sleeve is sequentially and uniformly and movably arranged on the front surface of the rod body from the top to the bottom, a hydraulic jacking block is uniformly sleeved in the vibration sleeve from top to bottom, a vertical hydraulic duct communicated with the hydraulic port is formed in the rod body, a pressure device is fixedly arranged at the position, located on the back surface of the hydraulic jacking block, in the hydraulic duct, the top and the bottom of the pressure device are provided with pressure relief holes, a limiting vibration groove is formed in the middle of the outer ring at the top and the bottom of the vibration sleeve in the rod body, retaining rings are symmetrically and fixedly arranged at two ends in the limiting vibration groove, and through the design of the vibration sleeve and, the splitting efficiency and effect of the splitting rod are greatly improved, and the service life is longer.

Description

Hydraulic fracturing rod for rock layer exploitation

Technical Field

The invention relates to the technical field of rock exploitation, in particular to a hydraulic splitting rod for rock exploitation.

Background

All need be used to the splitting stick when rock mining or concrete block are broken, the splitting stick can break open the firm rock stratum that combines, inserts the splitting stick into the rock hole, and it utilizes hydraulic pressure to produce huge power and split into two halves with the rock stratum top, realizes the effect of splitting, and it mainly utilizes hydraulic pressure to send out power and applys on the rock through the hydraulic ram, but still has some problems in the in-service use of reality:

1. in the actual production requirement, for safety and service life, the time for splitting a rock is not very fast, so that the production efficiency is influenced, and simultaneously, the large hydraulic pressure output is required, so that the requirement on a hydraulic station is improved, and meanwhile, the loss of a splitting rod is larger due to overhigh hydraulic pressure, so that the service life of the splitting rod is greatly influenced;

2. the big bottom of top fracture condition that splits appears when hydraulic pressure backs down the rock, this is because the structure of rock is relevant with hydraulic design, though can also split the rock layer fine like this, but its in-process at the splitting, the rock layer that is backed down is the slope form, and some slopes appear to the hydraulic pressure top that pushes up mutually like this, and this kind of hydraulic pressure top of own just need guarantee sufficient leakproofness, and the slope that appears like this will lead to producing clearance or oblique friction between its and the pneumatic cylinder, can lead to hydraulic system's life to descend greatly.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the hydraulic splitting rod for rock mining, which has the advantages of high splitting efficiency and long service life and solves the problems in the background technology.

The invention provides the following technical scheme: a hydraulic fracturing rod for rock stratum exploitation comprises a rod body, handles are fixedly mounted on two sides of the top of the rod body, a hydraulic port is formed in the middle of the top of the rod body, a vibration sleeve is sequentially and uniformly movably mounted on the front of the rod body from the top to the bottom, a hydraulic jacking block is uniformly sleeved on the inside of the vibration sleeve from top to bottom, a hydraulic hole communicated with the hydraulic port and vertical to the hydraulic port is formed in the rod body, a pressurizing device is fixedly mounted at the position, located on the back side of the hydraulic jacking block, in the hydraulic hole, of the hydraulic jacking block, pressure relief holes are formed in the top and the bottom of the pressurizing device, a pressure relief screw rod is sleeved on an inner thread of each pressure relief hole, one end of each pressure relief screw rod extends out of the back side of the rod body, a limiting vibration groove is formed in the middle position, located on the top of the vibration sleeve and on the bottom outer ring, a, the middle part fixed mounting who leads to the pressure equipment has the check valve, the both ends symmetry fixed mounting of spacing vibration inslot portion has the fender ring, fixedly connected with reset spring between the inner wall at spacing vibration inslot both ends, adopt the slip to cup joint and cup joint the spacing spring of fixedly connected with between the both ends between the hydraulic ram middle part that the barred body inside evenly cup jointed.

Preferably, the middle positions of the top outer ring and the bottom outer ring of the vibration sleeve are symmetrically and fixedly provided with impact heads, the middle positions of the top inner ring and the bottom inner ring of the vibration sleeve are symmetrically provided with limit grooves, the inner ring on the back surface of the vibration sleeve is movably sleeved with the outer ring of the through-pressure device, and the top hydraulic ejector block and the bottom hydraulic ejector block are protruded close to the limit vibration grooves and are sleeved in the limit grooves in a sliding mode.

Preferably, the number of the hydraulic ejector blocks is odd, the section of the extending end of each hydraulic ejector block is semicircular, the layer heights of the extending end of each hydraulic ejector block are the same, and the areas of the end faces of the back faces of the hydraulic ejector blocks are the same.

Preferably, the impact head and the baffle ring are made of wear-resistant materials with high vibration frequency, and the return spring penetrates through a central hole of the baffle ring.

Preferably, the hydraulic plunger is located at the top of the inner ring of the hard rubber layer when the cleaving rod is not used, and the hydraulic pressure applied to the hydraulic plunger in use is intermittent and small in hydraulic input amount each time.

The invention has the following beneficial effects:

1. connect in hydraulic ram piece outer lane through setting up the vibration sleeve cover, and inside cooperation has the impact head and keeps off the ring and annotate through the intermittent type formula and press, compare in prior art, can make the vibration sleeve realize the back-and-forth movement of intermittent type formula when annotating through the intermittent type formula, can drive the impact head and keep off the ring and collide ceaselessly at the in-process that removes, and on will vibrating the transmission hydraulic ram piece, later do again in the rock layer, the hydraulic pressure force of cooperation itself makes the fracture that the rock layer can be faster, improve the efficiency of splitting.

2. Through setting up the combination of multilayer hydraulic ram, and the pressurized area at its inside back is the same, compare in prior art, hydraulic pressure can outwards be ejecting with it when being used for on the hydraulic ram, multilayer hydraulic ram will the layering atress when the slope condition appears in the rock layer, the layering atress can be guaranteed all to be in the horizontal direction at the holistic atress of splitting stick during operation, the pressurized area at its back is the same simultaneously, will make the hydraulic ram can also make every hydraulic ram receive the same jacking force when carrying out flexible change, avoided hydraulic means to receive great damage and can also guarantee its leakproofness, make splitting stick life more permanent.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an overall cross-sectional view of the structure of the present invention;

FIG. 3 is a partial cross-sectional view of the structure of the present invention;

FIG. 4 is a schematic structural view of a sleeve top block according to the present invention;

FIG. 5 is a rear assembled view of the hydraulic ram of the present invention;

fig. 6 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. a rod body; 2. a handle; 3. a hydraulic port; 4. a vibrating sleeve; 401. punching a collision head; 402. a limiting groove; 5. a hydraulic top block; 6. a hydraulic duct; 7. a pressure applying device; 701. a pressure relief vent; 8. a limiting vibration groove; 9. a hard glue layer; 10. a hydraulic plunger; 11. a pressure relief screw; 12. a one-way valve; 13. a baffle ring; 14. a return spring; 15. and a limiting spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a hydraulic fracturing rod for rock layer mining comprises a rod body 1, handles 2 are fixedly mounted on two sides of the top of the rod body 1, a hydraulic port 3 is formed in the middle of the top of the rod body 1, a vibration sleeve 4 is sequentially and uniformly movably mounted on the front of the rod body 1 from the top to the bottom, a hydraulic top block 5 is uniformly sleeved in the vibration sleeve 4 from top to bottom, a hydraulic pore passage 6 which is communicated with and vertical to the hydraulic port 3 is formed in the rod body 1, a venting device 7 is fixedly mounted in the hydraulic pore passage 6 at the back of the hydraulic top block 5, pressure relief holes 701 are formed in the top and the bottom of the venting device 7, a pressure relief screw 11 is sleeved in the pressure relief holes 701 in a threaded manner, one end of the pressure relief screw extends out of the back of the rod body 1, a limiting vibration groove 8 is formed in the middle of the top and the bottom outer ring of the vibration sleeve 4 in the rod body 1, a hard, hydraulic plunger 10 has been cup jointed in the inner circle activity of ebonite layer 9, the middle part fixed mounting of logical device 7 has check valve 12, the both ends symmetry fixed mounting of the inside of spacing vibration groove 8 has fender ring 13, fixedly connected with reset spring 14 between the inner wall at spacing vibration groove 8 both ends, adopt the slip to cup joint and cup joint between the both ends fixedly connected with spacing spring 15 between the hydraulic ram 5 middle part that the stick body 1 inside evenly cup jointed, the middle part position symmetry fixed mounting of vibrating sleeve 4 top and bottom outer lane has ram 401, spacing groove 402 has been seted up to the middle part position symmetry of vibrating sleeve 4 top and bottom inner circle, the inner circle at the vibrating sleeve 4 back cup joints with the outer lane activity of logical device 7, top and bottom hydraulic ram 5 are close to the position protrusion of spacing vibration groove 8 and slip and cup joint inside spacing groove 402.

Wherein, the 5 number of piles of hydraulic ram piece is odd number, the end section that stretches out of hydraulic ram piece 5 is semicircle form and the floor height is the same, the terminal surface area at the 5 backs of hydraulic ram piece is the same, it can use the middle part as the center to set up odd number, all there is the central point of a hydraulic ram piece 5 when the splitting stick is forward or reverse vertical use, also do benefit to other several hydraulic ram pieces 5 simultaneously and adjust the adaptation around this piece at middle part like this, be used for avoiding because of the influence that the splitting rock layer slope caused, the area at the back is the same simultaneously can make the hydraulic pressure that every hydraulic ram piece 5 received the same according to the pascal principle.

Wherein, collide head 401 and keep off ring 13 and adopt the wear-resisting material of high vibration frequency to make, reset spring 14 passes the centre bore that keeps off ring 13, collides head 401 and keeps off ring 13 and realizes the impact of intermittent type formula, should collide and can produce required vibration frequency, and this frequency effect can do benefit to the quick splitting of rock layer on hydraulic ejector block 5, improves production efficiency.

Wherein, hydraulic pressure plunger 10 is located the top position of ebonite layer 9 inner circle when the splitting stick is not used, and hydraulic pressure that hydraulic pressure plunger 10 received when using is intermittent type formula and hydraulic pressure input volume at every turn is little, adopts this kind of hydraulic pressure input mode to use when can realizing hydraulic ram power and vibration frequency, realizes the splitting fast on the one hand, and on the other hand can reduce required hydraulic pressure, just also reduces the requirement at hydraulic pressure station, and the practicality is higher.

The working principle is that the splitting rod is placed in a well-drilled splitting hole, a hydraulic station is communicated with a hydraulic port 3 at the top end of a rod body 1, hydraulic pressure is started after the rod body 1 is adjusted, hydraulic oil is intermittently injected into a hydraulic hole passage 6 in the rod body 1 through the hydraulic station, the hydraulic oil can act on a hydraulic plunger 10 and simultaneously intermittently press the hydraulic plunger 10 downwards, the hydraulic oil in the hydraulic hole passage 6 is pressed against a vibration sleeve 4 and a pressing device 7 through the hydraulic plunger, the hydraulic oil acting on the pressing device 7 can enter the vibration sleeve 4 through a check valve 12 and act on the back of a hydraulic jacking block 5 to eject the hydraulic jacking block outwards, the hydraulic pressure pressing against the vibration sleeve 4 can enable the hydraulic jacking block to move towards the front end and enable a collision head 401 to collide with a baffle ring 13 to generate vibration, the vibration is transmitted to the hydraulic jacking block 5 so as to be matched with the hydraulic jacking force, splitting can be more facilitated, and when a split rock layer inclines, the hydraulic jacking block 5 can realize adjustment due to the layered design and the arc-shaped end part And guarantee that inside pressure that receives is unchangeable still, protected hydraulic system's leakproofness and life, unscrew through the pressure release screw rod 11 at the barred body 1 back after the splitting is accomplished and can release the inside hydraulic oil of vibration sleeve 4 through pressure release hole 701, later hydraulic ejector block 5 also can reset under spacing spring 15's effect, accomplishes splitting once.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydraulic pressure splitting rod is used in rock stratum exploitation, includes barred body (1), and the both sides fixed mounting at barred body (1) top has handle (2), and hydraulic pressure mouth (3), its characterized in that have been seted up at the middle part at barred body (1) top: the front of the rod body (1) is sequentially and uniformly movably provided with a vibration sleeve (4) from the top to the bottom, a hydraulic ejector block (5) is uniformly sleeved in the vibration sleeve (4) from top to bottom, a hydraulic hole (6) which is communicated with a hydraulic port (3) and vertical is formed in the rod body (1), a pressure device (7) is fixedly arranged at the position, located on the back of the hydraulic ejector block (5), in the hydraulic hole (6), the top and the bottom of the pressure device (7) are provided with pressure release holes (701), a pressure release screw (11) is sleeved in the pressure release holes (701) in a threaded manner, one end of the pressure release screw extends out of the back of the rod body (1), a limiting vibration groove (8) is formed in the middle position, located on the top of the vibration sleeve (4) and on the bottom outer ring, a hard rubber layer (9) is fixedly sleeved in the top inner ring of the hydraulic hole (6), hydraulic plunger (10) has been cup jointed in the inner circle activity of ebonite layer (9), the middle part fixed mounting that leads to pressure equipment (7) has check valve (12), the inside both ends symmetry fixed mounting at spacing vibration groove (8) has fender ring (13), fixedly connected with reset spring (14) between the inner wall at spacing vibration groove (8) both ends, adopt the slip to cup joint and cup joint fixedly connected with spacing spring (15) between both ends between hydraulic ram (5) middle part that the inside of barred body (1) evenly cup joints.

2. The hydraulic fracturing rod for rock strata mining of claim 1, wherein: the middle position symmetry fixed mounting of vibration sleeve (4) top and bottom outer lane has impact head (401), spacing groove (402) have been seted up to the middle part position symmetry of vibration sleeve (4) top and bottom inner circle, the inner circle at vibration sleeve (4) back cup joints with the outer lane activity of logical device (7), top and bottom hydraulic ram (5) are close to the position protrusion and the slip cup joint inside spacing groove (402) of spacing vibration groove (8).

3. The hydraulic fracturing rod for rock strata mining of claim 1, wherein: the number of layers of the hydraulic ejector block (5) is odd, the cross section of the extending end of the hydraulic ejector block (5) is semicircular, the layer heights of the extending end of the hydraulic ejector block are the same, and the areas of the end faces of the back faces of the hydraulic ejector block (5) are the same.

4. A hydraulic fracturing rod for rock strata mining as claimed in claim 2, wherein: the impact head (401) and the baffle ring (13) are made of wear-resistant materials with high vibration frequency, and the return spring (14) penetrates through a center hole of the baffle ring (13).

5. The hydraulic fracturing rod for rock strata mining of claim 1, wherein: the hydraulic plunger (10) is located at the top of the inner ring of the hard rubber layer (9) when the cleaving rod is not used, and hydraulic pressure applied to the hydraulic plunger (10) when the cleaving rod is used is intermittent and small in hydraulic input amount each time.