CN109707694B - A kind of hydraulic breaking hammer - Google Patents
A kind of hydraulic breaking hammer Download PDFInfo
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- CN109707694B CN109707694B CN201910157143.6A CN201910157143A CN109707694B CN 109707694 B CN109707694 B CN 109707694B CN 201910157143 A CN201910157143 A CN 201910157143A CN 109707694 B CN109707694 B CN 109707694B
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Abstract
The invention discloses a kind of hydraulic breaking hammers, including middle cylinder, it is provided with the piston of reciprocating motion in middle cylinder, the hydraulic system for driving piston motion is provided between middle cylinder and piston, the gas-powered mechanism of auxiliary hydraulic pressure circulatory system driving piston motion is provided in middle cylinder.The present invention breaches the mentality of designing of conventional hydraulic quartering hammer, realizes the parallel arrangement structure innovation of piston and flat valve, avoids piston or flat valve stop position not at that time, quartering hammer does not start phenomenon；Overall structure of the present invention is simple, saves 30% or more material, easy to process, reduces costs, improves 40% or more processing efficiency；When occurring pulling phenomenon, some small part therein is only replaced, replacement middle cylinder is not needed, reduces the use cost of user；The popularization and application of the technology of the present invention will change the Research idea of quartering hammer industry, and quartering hammer industry technology innovation in China's is made to march toward a new step.
Description
Technical field
The present invention relates to a kind of crushing devices, relate in particular to one kind in mining, metallurgy, railway, highway, city
The hydraulic breaking hammer that political affairs gardens, building, ship etc. use, belongs to technical field of engineering machinery.
Background technique
Hydraulic breaking hammer referred to as " quartering hammer " or " destroyer ", is mounted in excavator, installs bucket or dress on loading machine
The position of bucket, for broken stone, rock etc., as shown in Figure 1.
The working principle of hydraulic breaking hammer is: using excavator, loading machine hydraulic pump pressure oil output as power, by matching
It flows valve and controls reciprocating motion of the pistons.When stroke, the back cavity of quartering hammer middle cylinder is into high pressure liquid pressure oil, and piston is by the compressed nitrogen in upper cylinder half
Drill steel is impacted under the collective effect of gas and high pressure oil digs crushed rocks；When backhaul, middle cylinder ante-chamber connects high pressure oil, and piston is pushed to move back
And the nitrogen in upper cylinder body is compressed, a working cycles are completed in this way.Piston stroke in cycles, backhaul, rush drill steel
Break up crushed rocks, stone, concrete etc..
The hydraulic breaking hammer of the prior art has following deficiency: first is that flat valve and piston are arranged in parallel, it is either built-in
Flat valve or external.The characteristics of this structure is that hydraulic breaking hammer volume is big, expends material.Hydraulic breaking hammer was using
It often will appear outside piston surface in journey to occur pulling phenomenon with hole surface in the middle cylinder body matched, that slightly pulls can be with
By repairing middle cylinder, match grinding piston is continued to use again, is pulled serious middle cylinder and is eliminated.It will cause very serious wave in this way
Take, increases the cost of user.
Second is that quartering hammer middle cylinder duct is especially more, machining operation is more.Grinding is extremely complex, due to installing piston
Hole and installation flat valve hole be arranged in parallel, two hole grindings are eccentric processing mode, time-consuming, processing cost
It is high.
Third is that structure is complicated for flat valve, requirement on machining accuracy is very high.Also often occur pulling and being broken in use
Phenomenon.
In view of the deficienciess of the prior art, existing to solve the problems, such as there is an urgent need to research and develop a kind of novel technology.Through
It crosses to the product of prior art manufacture in use and the tracking of process, we have developed a kind of new structural hydraulic broken
Broken hammer.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art, provide a kind of convenient for safeguarding, structure
Simply, hydraulic breaking hammer easy to process.
To solve the above problems, the invention adopts the following technical scheme: a kind of hydraulic breaking hammer, including middle cylinder, in middle cylinder
It is provided with the piston of reciprocating motion, the hydraulic system for driving piston motion, middle cylinder are provided between middle cylinder and piston
On be provided with the auxiliary hydraulic pressure circulatory system driving piston motion gas-powered mechanism.
Be that the present invention advanced optimizes above scheme below: the hydraulic system includes columnar structured interior
Cylinder, the flowing of liquid is controlled by cut-off equipment in inner casing.
Advanced optimize: the inner casing carries out position restriction by limiting device in middle cylinder.
Advanced optimize: the cut-off equipment includes the slide valve by moving back and forth liquid disengaging in control inner casing.
Advanced optimize: position corresponding with slide valve is provided with the piston that driving piston makees stroke movement on the inner casing
Stroke flow unit.
Advanced optimize: position corresponding with one end of slide valve, which is provided with, on the inner casing drives slide valve to make drawback movement
Slide valve backhaul flow unit.
Advanced optimize: one end of the inner casing is provided with driving piston and makees the backward stroke of the piston of drawback movement with oily unit.
Advanced optimize: the piston stroke flow unit includes first annular groove, the second annular groove of inner casing, inner casing
Three annular grooves and inner casing fourth annular slot.
It advanced optimizes: offering three hole of inner casing for entering inner casing inner cavity convenient for liquid on the inner casing third annular groove.
It advanced optimizes: offering four hole of inner casing flowed out convenient for liquid from inner casing inner cavity in the first annular groove.
It advanced optimizes: being provided with the cunning for being connected to the second annular groove of inner casing and inner casing third annular groove on the slide valve
The first annular slot of valve.
It advanced optimizes: being provided with the slide valve for being connected to first annular groove and inner casing fourth annular slot on the slide valve
Second annular groove.
Advanced optimize: the slide valve backhaul flow unit includes the second interior annular groove of inner casing and interior of inner casing one end setting
Cylinder third interior annular groove.
It advanced optimizes: offering the inner casing one for flowing into inner casing inner cavity convenient for liquid on second interior annular groove of inner casing
Hole.
It advanced optimizes: offering the inner casing two flowed out convenient for liquid in inner casing inner cavity on the inner casing third interior annular groove
Hole.
Advanced optimize: the limiting device includes oil sealing fixator and the limit for carrying out position restriction to inner casing from both ends
Body.
It advanced optimizes: offering the oil sealing fixator entered in middle cylinder convenient for outside liquid on the oil sealing fixator
Hole.
Advanced optimize: it is first annular to offer inner casing for position corresponding with the hole of oil sealing fixator on the inner casing
Slot.
It advanced optimizes: is offered on the inner casing for being connected in the second annular groove of the first annular slot of inner casing and inner casing
Cylinder axial groove.
Advanced optimize: it includes the internal backhaul for offering cavity with oil jacket that the backward stroke of the piston, which matches oily unit,.
Advanced optimize: the hole of oil jacket is matched in the backhaul with the backhaul entered convenient for liquid is offered on oil jacket.
Working principle: when high pressure oil (liquid) is entered in oil sealing fixator annular groove by middle cylinder oil inlet, a part
High pressure oil is entered back into the first annular slot of inner casing by the hole of oil sealing fixator, and high pressure oil is entered by the first annular slot of inner casing
Into the second annular groove of inner casing, slide valve first end face pushes slide valve to move downward under the action of high pressure oil, and slide valve is first annular
Slot is moved to the left to be connected with inner casing third annular groove, and high pressure oil advances to inner casing third annular groove and entered by three hole of inner casing
Into the first cavity, high pressure oil pushes the piston first end face of piston, impacts piston to the right, the stroke movement of piston is in height
Nitrogen in pressure oil active force and upper cylinder body, which acts on, to be formed under the power collective effect of piston first end face；
The high pressure oil a part entered from middle cylinder fuel feed hole forms the stroke movement of piston by the hole of oil sealing fixator,
Another part is by the radial hole of middle cylinder and radial two holes of middle cylinder that oil sealing fixator annular groove enters middle cylinder, then passes through middle cylinder shaft
Axial two holes of Xiang Yikong, middle cylinder and radial three holes of middle cylinder, radial four holes of middle cylinder enter that backhaul is formed with oil jacket and middle cylinder
In four cavitys, then the hole for matching oil jacket through backhaul enters in the second cavity；
Piston second end face area on piston is greater than the area of piston third end face, in piston stroke, piston first
Face area is greater than piston second end face area many plus the area of piston third end face, along with nitrogen is to the work of piston
With the active force in piston stroke is also very big, and the area of piston second end face is greater than the pressure that the area of piston third end face is formed
Power can be disregarded, this phenomenon is such as the prior art；
In piston stroke movement, when piston first end face is located in the first interior annular groove of inner casing, piston stroke is pushed
High pressure oil enter in the first interior annular groove of inner casing, and enter inner casing and slide valve shape through four hole of inner casing in the first interior annular groove of inner casing
At the 5th cavity in, entered in third cavity by the hole of slide valve, using middle cylinder oil return hole be discharged, at this moment in the first cavity
Pressure reduction, piston starts backhaul under the action of high pressure oil in the second cavity；
When piston, which moves right piston second end face, to be located in the second interior annular groove of inner casing, oil jacket is matched in piston and backhaul
The high pressure oil in the second cavity formed is entered in the middle part of piston in annular groove by one hole of inner casing and inner casing third interior annular groove, is led to
It crosses the second interior annular groove of inner casing and two hole of inner casing enters in the 6th cavity, push slide valve to move right, when slide valve moves right
Inner casing third annular groove and the second annular groove of inner casing are truncated slide valve inner hole, and the high pressure oil in the first cavity is no longer discharged, this
When piston drawback movement to the right gradually slow down, and prepare to start the stroke movement of piston to the left, piston and slide valve back and forth same
To movement make the high pressure oil pressure in the first cavity change form piston back and forth rush drawback movement.
The present invention breaches the mentality of designing of conventional hydraulic quartering hammer, the parallel arrangement structure innovation of piston and flat valve,
It and is coaxially arranged；The movement in the same direction for realizing flat valve and piston avoided piston or flat valve stop position not at that time, broke
Broken hammer does not start phenomenon；Overall structure of the present invention is simple, saves 30% or more material, easy to process, reduces costs, improves
40% or more processing efficiency；When occurring pulling phenomenon, some small part therein is only replaced, replacement middle cylinder is not needed, reduces
The use cost of user；The popularization and application of the technology of the present invention will change the Research idea of quartering hammer industry, make China's quartering hammer row
Industry technological innovation marches toward a new step.
Present invention will be further explained below with reference to the attached drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art in the background technology；
Fig. 2 is the structural schematic diagram of the present invention in embodiment；
Fig. 3 is the structural schematic diagram of B-B direction in Fig. 2；
Fig. 4 be Fig. 2 in A-A to structural schematic diagram；
Fig. 5 be Fig. 2 in C-C to structural schematic diagram；
Fig. 6 be Fig. 2 in D-D to structural schematic diagram；
Fig. 7 be Fig. 2 in F-F to structural schematic diagram；
Fig. 8 be Fig. 2 in G-G to structural schematic diagram；
Fig. 9 be Fig. 2 in E-E to structural schematic diagram；
Figure 10 be Fig. 2 in H-H to structural schematic diagram；
Figure 11 is the structural schematic diagram of oil sealing fixator in embodiment of the invention；
Figure 12 is present invention structural schematic diagram of the backhaul with oil jacket in embodiment；
Figure 13 is the structural schematic diagram of inner casing in embodiment of the invention；
Figure 14 is the structural schematic diagram of limit body in embodiment of the invention；
Figure 15 is the structural schematic diagram of slide valve in embodiment of the invention；
Figure 16 is the structural schematic diagram of piston in embodiment of the invention；
Figure 17 is the structural schematic diagram of the present invention in embodiment.
In figure: 1- middle cylinder；Oil jacket is matched in 2- backhaul；3- limit body；4- inner casing；5- slide valve；6- oil sealing fixator；7- piston；
8- upper cylinder body；9- first annular groove；10- second annular groove；11- flange；12- boss；13- protrusion；Oil jacket is matched in K1- backhaul
Hole；One hole of K2- inner casing；Two hole of K3- inner casing；Three hole of K4- inner casing；Four hole of K5- inner casing；The radial hole of K6- middle cylinder；K7- middle cylinder
Radial two holes；The axial hole of K8- middle cylinder；Axial two holes of K9- middle cylinder；Radial three holes of K10- middle cylinder；Radial four holes of K11- middle cylinder；
K12- middle cylinder fuel feed hole；K13- middle cylinder oil return hole；The hole of K14- oil sealing fixator；The hole of K15- slide valve；C1- inner casing axial groove；
C2- oil sealing fixator annular groove；The first annular slot of C3- inner casing；The first annular slot of C4- slide valve；The second annular groove of C41- slide valve；
The second annular groove of C5- inner casing；C6- inner casing third annular groove；The first interior annular groove of C7- inner casing；C8- inner casing fourth annular slot；C9-
The second interior annular groove of inner casing；C10- inner casing third interior annular groove；Annular groove in the middle part of C11- piston；The first cavity of Q1-；Q2- second
Cavity；Q3- third cavity；The 4th cavity of Q4-；The 5th cavity of Q5-；The 6th cavity of Q6-；D1- piston first end face；D2- piston
Second end face；D3- piston third end face；Oil jacket end face is matched in D4- backhaul；D5- limit body first end face；D6- limit body second end
Face；D7- inner casing first end face；D8- inner casing second end face；D9- oil sealing fixator end face；D10- slide valve first end face；D11- is living
Fill in first end face；D12- piston second end face；D13- slide valve second end face；W1- outside piston surface；W2- inner casing periphery；
W3- limit body inner hole.
Specific embodiment
Embodiment, as shown in Fig. 2-17, a kind of hydraulic breaking hammer is set in middle cylinder 1 including the internal middle cylinder 1 for being equipped with cavity
It is equipped with the piston 7 of reciprocating motion, the hydraulic system for driving piston 7 to move is provided between middle cylinder 1 and piston 7, in
One end of cylinder 1 is provided with the gas-powered mechanism that auxiliary hydraulic pressure circulatory system driving piston 7 moves.
The hydraulic system includes columnar structured inner casing 4, and inner casing 4 is coaxially assemblied on piston 7 close to one end
Position.
The inner casing first of ring structure is disposed on the excircle of the inner casing 4 from one end of inner casing 4 to the other end
Annular groove C3, the second annular groove of inner casing C5, inner casing third annular groove C6, inner casing fourth annular slot C8；
In the inner casing first for being disposed with ring structure from one end of inner casing 4 to the other end on the inner wall of the inner casing 4
Annular groove C7, the second interior annular groove of inner casing C9, inner casing third interior annular groove C10.
Circular array shows the inner casing axial groove C1 that multiple longitudinal sections are arc, multiple inner casings on the excircle of the inner casing 4
Axial groove C1 is respectively along the axial direction setting of inner casing 4, and multiple inner casing axial groove C1 are located at the first annular slot C3 of inner casing and inner casing the
Between second ring slot C5.
Position on the inner casing third annular groove C6 close to middle part offers multiple three holes of inner casing through 4 side wall of inner casing
K4；
The multiple three hole K4 annular array of inner casing is on inner casing third annular groove C6, and the edge respectively three hole K4 of each inner casing
Inner casing 4 is arranged radially.
Position annular array on the first interior annular groove of inner casing C7 close to one end has multiple through the interior of 4 side wall of inner casing
Four hole K5 of cylinder, and four hole K5 of each inner casing being arranged radially along inner casing 4 respectively.
Position corresponding with four hole K5 of inner casing is provided with the first annular groove of ring structure on the excircle of the inner casing 4
9。
Position annular array on the inner wall of the second interior annular groove of inner casing C9 close to one end has multiple through 4 side of inner casing
The two hole K3 of inner casing of wall, and two hole K3 of each inner casing being arranged radially along inner casing 4 respectively.
Position corresponding with two hole K3 of inner casing is provided with the second annular groove of ring structure on the excircle of the inner casing 4
10。
Position annular array on the inner wall of the inner casing third interior annular groove C10 close to one end has multiple through inner casing 4
The one hole K2 of inner casing of side wall, and one hole K2 of each inner casing being arranged radially along inner casing 4 respectively.
The inner casing 4 is fixedly mounted in middle cylinder 1 by limiting device, which includes coaxially being assemblied in inner casing 4
The other end of the oil sealing fixator 6 of one end, inner casing 4 carries out position limitation by limit body 3.
The oil sealing fixator 6 is integrated the two-stage structure of connection, the major diameter that 7 excircle of a Duan Weiyu piston is slidably connected
Section, the oil sealing fixator end face D9 of the major diameter section are contacted with the inner casing second end face D8 of inner casing 4；
Another section is the path section being arranged between 1 inner wall of inner casing periphery W2 and middle cylinder of inner casing 4, the path section it is interior
Diameter is equal to the outer diameter of inner casing 4；
The major diameter section and path section are ring structure, and the axis of major diameter section and path section is on same straight line.
The longitudinal section of the limit body 3 is L shape, and limit body 3 is fixedly mounted between middle cylinder 1 and inner casing 4, outside inner casing 4
Position on circumference close to second annular groove 10 is provided with the protrusion 13 for limiting 3 axial position of limit body, the protrusion 13
For ring structure.
One end on the limit body 3 far from oil sealing fixator 6 is provided with the piston axially limited limit body 3 and returns
Journey matches oily unit, and it is that oil jacket 2 is matched in backhaul which, which matches oily unit,.
The backhaul, which is matched, offers cavity in oil jacket 2, and backhaul is coaxially assemblied between middle cylinder 1 and piston 7 with oil jacket 2.
The backhaul is shown through backhaul with one end circular array on the excircle of oil jacket 2 close to limit body 3 with 2 side of oil jacket
The hole K1 of oil jacket is matched in the backhaul of wall, and hole K1 of each backhaul with oil jacket matches being arranged radially for oil jacket 2 along backhaul respectively.
Position corresponding with the path section of oil sealing fixator 6 is provided with internal diameter equal to outside the path section in the middle cylinder 1
The boss 12 of diameter, the boss 12 are ring structure, and design in this way can carry out axial restriction to oil sealing fixator 6.
One end of the middle cylinder 1 is fixedly connected with the upper cylinder body 8 for being internally provided with cavity, and one end of upper cylinder body 8 is held out against
Far from one end of inner casing 4 on oil sealing fixator 6, pass through in this way the collective effect of middle cylinder 1 and upper cylinder body 8 to oil sealing fixator 6 into
Row position restriction.
The upper cylinder body 8, oil sealing fixator 6 and piston 7 form gas-powered mechanism, upper cylinder body 8,6 and of oil sealing fixator
Filled with the compressed gas that driving piston 7 is mobile in the cavity that piston 7 is surrounded, which is nitrogen.
The first cavity Q1, the first cavity Q1 is surrounded between the oil sealing fixator 6, piston 7 and inner casing 4 for accommodating driving
The mobile liquid of piston 7.
The cut-off equipment for whether entering the first cavity Q1 for controlling liquid is provided on the excircle of the inner casing 4, it should
Cut-off equipment moves back and forth on inner casing 4.
The cut-off equipment includes columnar structured slide valve 5, and slide valve 5 is coaxially assemblied on the excircle of inner casing 4, and sliding
One end of valve 5 is coaxially assemblied between limit body 3 and inner casing 4.
Position on the inner wall of the slide valve 5 close to one end is offered for being connected to the second annular groove of inner casing C5, inner casing the
The first annular slot C4 of the slide valve of three annular groove C6.
One end on the inner wall of the slide valve 5 far from the first annular slot C4 of slide valve is offered for being connected to inner casing fourth annular
Slot C8 and second annular groove of the slide valve of first annular groove 9 C41.
The first annular slot C4 and the second annular groove of slide valve C41 of slide valve is ring structure, and is coaxially set with slide valve 5
It sets.
The 5th cavity Q5 is surrounded between the slide valve 5 and inner casing 4, the 5th cavity Q5 is exported for accommodating by four hole K5 of inner casing
Liquid.
Position on the inner wall of the second annular groove of slide valve C41 close to one end offers the slide valve through 5 inner wall of slide valve
Hole K15, in this way design convenient for by the 5th cavity Q5 liquid export.
One end on the slide valve 5 close to limit body 3 is provided with the protrusion of ring structure, and the protrusion is for limiting slide valve 5
Movement to the direction close to limit body 3.
The backhaul is located at the with the second cavity Q2 is surrounded between oil jacket 2, piston 7, inner casing 4 and limit body 3 on piston 7
Position in two cavity Q2 is provided with the flange 11 of ring structure.
One end face of the flange 11 is piston second end face D2, and other end is piston third end face D3.
The middle cylinder 1, backhaul with surrounding the 4th cavity Q4 between oil jacket 2 and limit body 3, in middle cylinder 1 with the 4th cavity Q4
Corresponding position offers the radial four hole K11 of the middle cylinder communicated with the 4th cavity Q4 and the radial three hole K10 of middle cylinder.
The radial four hole K11 of the middle cylinder and the radial three hole K10 of middle cylinder being arranged radially along middle cylinder 1, and middle cylinder radial direction respectively
The angle of four hole K11 and the radial three hole K10 axis of middle cylinder is right angle.
The side of the middle cylinder 1 position corresponding with boss 12 offers the middle cylinder fuel feed hole through 1 side wall of middle cylinder
K12, middle cylinder fuel feed hole K12 are for injecting liquid into the present apparatus.
Position corresponding with middle cylinder radial four hole K11 and the radial three hole K10 of middle cylinder offers respectively on the boss 12
The radial hole K6 of middle cylinder, the radial two hole K7 of middle cylinder.
The radial hole K6 of the middle cylinder, the radial two hole K7 of middle cylinder being arranged radially along middle cylinder 1 respectively.
Pass through the axial hole K8 connection of middle cylinder, middle cylinder diameter between the radial hole K6 of the middle cylinder and the radial three hole K10 of middle cylinder
Pass through the axial two hole K9 connection of middle cylinder between Xiang Erkong K7 and the radial four hole K11 of middle cylinder.
The axial hole K8 of the middle cylinder and axial two hole K9 of middle cylinder is respectively along the axial direction setting of middle cylinder 1.
It is corresponding with the radial hole K6 of middle cylinder, the radial two hole K7 and middle cylinder fuel feed hole K12 of middle cylinder on the oil sealing fixator 6
Position offer the hole K14 of oil sealing fixator respectively.
The hole K14 of three oil sealing fixators respectively with the radial hole K6 of middle cylinder, the radial two hole K7 of middle cylinder and middle cylinder into
Oilhole K12 is communicated, and hole K14 being arranged radially along oil sealing fixator 6 of oil sealing fixator.
Position corresponding with the hole K14 of oil sealing fixator offers the oil sealing of ring structure on the oil sealing fixator 6
Fixator annular groove C2, oil sealing fixator annular groove C2 are used to be connected to the hole K14 of three oil sealing fixators.
The middle cylinder 1, slide valve 5, inner casing 4, oil sealing fixator 6 and limit body 3 surround third cavity Q3, the side of middle cylinder 1
Position close to middle cylinder fuel feed hole K12 offers middle cylinder oil return hole K13.
Middle cylinder oil return hole K13 being arranged radially along middle cylinder 1, the output for liquid in third cavity Q3.
The slide valve 5, inner casing 4 and limit body 3 surround the 6th cavity Q6, and the 6th cavity Q6 is defeated for accommodating two hole K3 of inner casing
Liquid out, and keep liquid driven slide valve 5 mobile.
An end face on the piston 7 for controlling inner casing the first interior annular groove C7 and the first cavity Q1 on-off is piston the
One end face D1 close to one end of upper cylinder body 8 is piston first end face D11 on piston 7.
For controlling one end of inner casing the second interior annular groove C9 and inner casing third interior annular groove C10 on-off on the piston 7
Face is piston second end face D12.
The periphery being in contact on the piston 7 with the inner wall of inner casing 4 is outside piston surface W1, the outside piston surface
W1 is located between piston first end face D1 and piston second end face D12.
Position on the piston 7 close to piston second end face D12 is offered for being connected to the second interior annular groove of inner casing C9
With annular groove C11 in the middle part of the piston of inner casing third interior annular groove C10, piston middle part annular groove C11 is ring structure.
Limit body inner hole W3 is offered in the limit body 3, limit body inner hole W3 is slidably connected with slide valve 5.
The backhaul is backhaul with oil jacket end face D4 with the end face being in contact on oil jacket 2 with limit body 3, on limit body 3
The end face contacted with backhaul with oil jacket end face D4 is limited a body first end face D5.
Be limited on the limit body 3 with an end face of raised 13 1 side contacts a body second end face D6, in protrusion 13 with limit
The end face that position body second end face D6 is in contact is inner casing first end face D7.
An end face of close oil sealing fixator 6 is slide valve first end face D10, close protrusion 13 on slide valve 5 on the slide valve 5
An end face be slide valve second end face D13.
Position on the excircle of the piston 7 close to middle part offers the oil storage tank of multiple ring structures, and position respectively
In the middle part of piston between the annular groove C11 and piston first end face D1 of between annular groove C11 and flange 11 and piston middle part.
The first annular groove 9, the second annular groove of inner casing C5, inner casing third annular groove C6 and inner casing fourth annular slot
C8, three hole K4 of inner casing, four hole K5 of inner casing, the first annular slot C3 of inner casing, inner casing axial groove C1, inner casing the first interior annular groove C7 composition
Piston stroke flow unit.
The second interior annular groove of inner casing C9, inner casing third interior annular groove C10, one hole K2 of inner casing, two hole K3 of inner casing composition
Slide valve backhaul flow unit.
Working principle: when high pressure oil (liquid) is entered in oil sealing fixator annular groove C2 by middle cylinder oil inlet K12, one
Partial high pressure oil is entered back into the first annular slot C3 of inner casing by the hole K14 of oil sealing fixator, and high pressure oil passes through inner casing first
Annular groove C1 is entered in the second annular groove of inner casing C5, and slide valve first end face D10 pushes slide valve 5 to the left under the action of high pressure oil
Movement, the first annular slot C4 of slide valve is moved to the left to be connected with inner casing third annular groove C6, and high pressure oil advances to inner casing third ring
Shape slot C6 is simultaneously entered in the first cavity Q1 by three hole K4 of inner casing, and high pressure oil pushes the piston first end face D1 of piston 7, makes to live
Plug 7 impacts to the right, and the stroke movement of piston 7 is that the nitrogen in high pressure oil active force and upper cylinder body 8 acts on piston first end
It is formed under the power collective effect of face D11；
The high pressure oil a part entered from middle cylinder fuel feed hole K12 forms rushing for piston 7 by the hole K14 of oil sealing fixator
Cheng Yundong, another part pass through the radial hole K6 of middle cylinder that oil sealing fixator annular groove C2 enters middle cylinder 1 and radial two holes of middle cylinder
K7, then entered by the axial hole K8 of middle cylinder, the axial two hole K9 of middle cylinder and the radial three hole K10 of middle cylinder, the radial four hole K11 of middle cylinder
Backhaul in the 4th cavity Q4 that backhaul is formed with oil jacket 2 and middle cylinder 1, then through backhaul with oil jacket 2 is entered with the hole K1 of oil jacket
In second cavity Q2；
Piston second end face D2 area on piston 7 is greater than the area of piston third end face D3, living in 7 stroke of piston
It fills in first end face D1 area and is greater than piston second end face D2 area many plus the area of piston third end face D3, add nitrogen
Effect to piston 7, the active force in 7 stroke of piston is also very big, and the area of piston second end face D2 is greater than piston third end face
The pressure that the area of D3 is formed can be disregarded, this phenomenon is such as the prior art；
In 7 stroke movement of piston, when piston first end face D1 is located in the first interior annular groove of inner casing C7, piston is pushed
The high pressure oil of 7 strokes enters in the first interior annular groove of inner casing C7, and enters through four hole K5 of inner casing in the first interior annular groove of inner casing C7
In the 5th cavity Q5 that inner casing 4 and slide valve 5 are formed, entered in third cavity Q3 by the hole K15 of slide valve, using middle cylinder oil return
Hole K13 discharge, at this moment the pressure reduction in the first cavity Q1, piston 7 start back under the action of high pressure oil in the second cavity Q2
Journey；
When piston 7 move right piston second end face D12 be located at in the second interior annular groove of inner casing C9 when, piston 7 with
The high pressure oil in the second cavity Q2 that backhaul is formed with oil jacket 2 is entered by inner casing one hole K2 and inner casing third interior annular groove C10
In the middle part of piston in annular groove C11, entered in the 6th cavity Q6 by inner casing the second interior annular groove C9 and two hole K3 of inner casing, pushes and slide
Valve 5 moves right, and cuts inner casing third annular groove C6 and inner casing the second annular groove C5 when slide valve 5 moves right slide valve inner hole
Disconnected, the high pressure oil in the first cavity Q1 is no longer discharged, and at this moment the drawback movement of piston 7 to the right gradually slows down, and prepares to start
High pressure oil pressure in first cavity Q1 occurs for the reciprocal movement in the same direction of the stroke movement of piston 7 to the left, piston 7 and slide valve 5
Variation forms the reciprocal of piston 7 and rushes drawback movement.
The present invention breaches the mentality of designing of conventional hydraulic quartering hammer, the parallel arrangement structure of piston and flat valve (slide valve)
Innovation, and be coaxially arranged；The movement in the same direction for realizing flat valve and piston, avoids piston or flat valve stop position is improper
When, quartering hammer does not start phenomenon；Overall structure of the present invention is simple, saves 30% or more material, easy to process, reduces costs, mentions
High 40% or more processing efficiency；When occurring pulling phenomenon, some small part therein is only replaced, does not need replacement middle cylinder, drop
The low use cost of user；The popularization and application of the technology of the present invention will change the Research idea of quartering hammer industry, keep China broken
Hammer industry technology innovation marches toward a new step.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms, therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
Interior, any reference signs in the claims should not be construed as limiting the involved claims.
Claims (7)
1. a kind of hydraulic breaking hammer, including middle cylinder (1), the interior piston (7) for being provided with reciprocating motion of middle cylinder (1), it is characterised in that:
It is provided with the hydraulic system for driving piston (7) to move between middle cylinder (1) and piston (7), is provided in middle cylinder (1) auxiliary
Help the gas-powered mechanism of hydraulic system driving piston (7) movement；
The hydraulic system includes columnar structured inner casing (4), and the flowing of inner casing (4) interior liquid is carried out by cut-off equipment
Control；
The cut-off equipment includes the slide valve (5) by moving back and forth the interior liquid disengaging of control inner casing (4), and slide valve (5) coaxially fills
On the excircle for fitting over inner casing (4), and one end of slide valve (5) is coaxially assemblied between limit body (3) and inner casing (4)；
The first annular slot of slide valve (C4), the second annular groove of slide valve (C41), the slide valve are offered on the inner wall of the slide valve (5)
First annular slot (C4) and the second annular groove of slide valve (C41) are ring structure, and are coaxially disposed with slide valve (5).
2. a kind of hydraulic breaking hammer according to claim 1, it is characterised in that: the inner casing (4) is in middle cylinder (1) by limiting
Position device carries out position restriction.
3. a kind of hydraulic breaking hammer according to claim 2, it is characterised in that: opposite with slide valve (5) on the inner casing (4)
The position answered is provided with the piston stroke flow unit that stroke movement is made in driving piston (7)；
The piston stroke flow unit includes first annular groove (9), the second annular groove of inner casing (C5), inner casing third annular groove
(C6) and inner casing fourth annular slot (C8).
4. a kind of hydraulic breaking hammer according to claim 3, it is characterised in that: on the inner casing (4) with slide valve (5) one
Corresponding position is held to be provided with the slide valve backhaul flow unit that drawback movement is made in driving slide valve (5).
5. a kind of hydraulic breaking hammer according to claim 4, it is characterised in that: one end of the inner casing (4) is provided with drive
The backward stroke of the piston that piston (7) makees drawback movement matches oily unit.
6. a kind of hydraulic breaking hammer according to claim 5, it is characterised in that: opened on the inner casing third annular groove (C6)
Equipped with three hole of inner casing (K4) for entering inner casing (4) inner cavity convenient for liquid.
7. a kind of hydraulic breaking hammer according to claim 6, it is characterised in that: opened up on the first annular groove (9)
There is four hole of inner casing (K5) flowed out convenient for liquid from inner casing (4) inner cavity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157143.6A CN109707694B (en) | 2019-03-01 | 2019-03-01 | A kind of hydraulic breaking hammer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157143.6A CN109707694B (en) | 2019-03-01 | 2019-03-01 | A kind of hydraulic breaking hammer |
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| CN109707694A CN109707694A (en) | 2019-05-03 |
| CN109707694B true CN109707694B (en) | 2019-10-18 |
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| CN201910157143.6A Active CN109707694B (en) | 2019-03-01 | 2019-03-01 | A kind of hydraulic breaking hammer |
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| CN201214234Y (en) * | 2008-06-10 | 2009-04-01 | 温州市森泰环保设备有限公司 | Non-nitrogen chamber hydraulic breaking hammer with built-in valve |
| CN203525753U (en) * | 2013-11-08 | 2014-04-09 | 刘建华 | Novel hydraulic breaking hammer |
| CN104471176A (en) * | 2012-07-03 | 2015-03-25 | 李日载 | Impact body for hydraulic impact device |
| CN104632069A (en) * | 2013-11-13 | 2015-05-20 | 山特维克矿山工程机械有限公司 | Impact device and method of dismounting the same |
| RU2623159C1 (en) * | 2016-03-04 | 2017-06-27 | Общество С Ограниченной Ответственностью Управляющая Компания "Традиция" (Ооо Ук "Традиция") | Hydraulic hammer |
| CN108114795A (en) * | 2017-12-29 | 2018-06-05 | 江苏集萃智能制造技术研究所有限公司 | A kind of all-hydraulic integrated impact device |
-
2019
- 2019-03-01 CN CN201910157143.6A patent/CN109707694B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201214234Y (en) * | 2008-06-10 | 2009-04-01 | 温州市森泰环保设备有限公司 | Non-nitrogen chamber hydraulic breaking hammer with built-in valve |
| CN104471176A (en) * | 2012-07-03 | 2015-03-25 | 李日载 | Impact body for hydraulic impact device |
| CN203525753U (en) * | 2013-11-08 | 2014-04-09 | 刘建华 | Novel hydraulic breaking hammer |
| CN104632069A (en) * | 2013-11-13 | 2015-05-20 | 山特维克矿山工程机械有限公司 | Impact device and method of dismounting the same |
| RU2623159C1 (en) * | 2016-03-04 | 2017-06-27 | Общество С Ограниченной Ответственностью Управляющая Компания "Традиция" (Ооо Ук "Традиция") | Hydraulic hammer |
| CN108114795A (en) * | 2017-12-29 | 2018-06-05 | 江苏集萃智能制造技术研究所有限公司 | A kind of all-hydraulic integrated impact device |
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| Publication number | Publication date |
|---|---|
| CN109707694A (en) | 2019-05-03 |
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