CN108385684A - A kind of the hammer core buffer control method and combined hammer core buffer unit of hydraulic pile driver - Google Patents
A kind of the hammer core buffer control method and combined hammer core buffer unit of hydraulic pile driver Download PDFInfo
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- CN108385684A CN108385684A CN201810238260.0A CN201810238260A CN108385684A CN 108385684 A CN108385684 A CN 108385684A CN 201810238260 A CN201810238260 A CN 201810238260A CN 108385684 A CN108385684 A CN 108385684A
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- core
- hammer
- bolster
- buffering
- locking lid
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003139 buffering effect Effects 0.000 claims abstract description 106
- 125000006850 spacer group Chemical group 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 20
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 238000013016 damping Methods 0.000 claims abstract description 6
- 230000035939 shock Effects 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a kind of hydraulic pile drivers to hammer core buffer control method into shape, core is hammered into shape to be promoted to quick release after predetermined altitude by hydraulic device, hammer core strikes pile body in a manner of freely falling body, the cylinder piston rod of high-speed downstream and the parts being arranged in piston rod compress buffering spacer and bolster by bolster gland in buffering area, slow down under the damping of buffering spacer and bolster downlink, it has buffered cylinder piston rod and the rigid impulsive contact force in the parts of piston rod is set, and the moment bounce after weight shock is also weakened by bolster, evade or significantly reduces the rebound of hammer core to cylinder piston rod and impact in the parts of piston rod is set；The rigid impulsive contact force of buffering reduction or bounce are cooperateed with together by buffering spacer in two buffering areas and bolster, simultaneously, wear-resistant liquid in two buffering areas can mutual crossfire with forced compression, energy release areas can be quickly reached with Impact direction, reduce buffering spacer and bolster generates heat because of absorbability.
Description
Technical field
The present invention relates to hydraulic pile hammers, and in particular to a kind of the hammer core buffer control method and combined type of hydraulic pile driver
Hammer core buffer unit into shape.
Background technology
In building, in bridge construction, pile foundation construction equipment is often used, but domestic hydraulic pile hammer, liquid at present
Hydraulic hammers class equipment, the structure designs such as pressure rammer compacter fail to reach preferable requirement.Hydraulic pile driver, hydraulic pressure beater at present
Equal hydraulic hammers class equipment lacks the buffer protection for hammering core into shape to hammer body, and weight rebounds at a high speed after striking strong object, due to rebounding
Journey is instantaneous, and oil cylinder impacts rack without time enough oil extraction, this tension weight churning oil cylinder instantaneously to rebound by oil cylinder,
It drives rack and beats together with the associated equipment other parts of rack, generate vibration and noise, easily lead to rack and correlation zero
Parts damages or failure.
Existing patent document discloses《A kind of hydraulic hammer protective device and the method to hydraulic hammer progress buffer protection》, specially
Profit number 201710735454.7, it is connector of the setting containing buffer gear between weight and oil cylinder to use buffering method,
The buffer gear carries out double buffering using spring and resilient snubber, although this mode can make the entire action process of weight
Effective impact mitigation measure is obtained, but the deceleration of this kind of impact mitigation measure weight rebound moment piston rod is still excessive, buffering effect
Fruit is undesirable, unstable.It is this kind of due to being that buffer gear is arranged using single layer buffer structure or between oil cylinder and weight
Design be still not up to preferable buffer requirements, it is low with the S. E. A. of reaction force for striking impact, can not be maximum
Changing reduces hammer body hammer core striking impact and reaction force；
Its problem two, hydraulic hammer protective device disclosed in the patent document, the hammer core buffer structure bolster pressure of design
Lid is connect with hammer core by bolt, and this connection type is not only unfavorable for hammering core into shape and bolster gland structure designs, while with
Usage time passage, then the bolt of high intensity also will appear from damage aging, is unable to reach initial effect, is extremely susceptible to spiral shell
The problem of bolt is broken；
The buffer structure of its problem three, hydraulic hammer protective device disclosed in the patent document, design is not reserved with
The wear-resistant liquid bath that buffering area internal part temperature and lubrication are used can be reduced, since the bolster buffering spacer of hammer core inner is
Heat caused by shots is directly absorbed, while as usage time elapses, bolster buffering spacer is easily damaged, and is caused
Failure, is unable to reach initial effect, integral demounting is needed to replace bolster again, complicated for operation；This design also lacks effectively to slow
The wear-resistant of stamping, heat resistanceheat resistant, erosion-resisting protection influence practical buffering working efficiency and bulk life time.
Invention content
The object of the present invention is to provide a kind of hammer core buffer control methods of hydraulic pile driver and combined hammer core to buffer
Device can effectively be directed to the rebound after weight impact into row buffering, significantly improve the stability of whole device, avoid portions
Part fails, and improves the stability and service life of equipment entirety.Combined type buffering hammer core apparatus provided by the invention is using double-deck
Buffer structure, maximum absorption striking impact and energy caused by reaction force, avoid component from higher temperature locally occur
It rises and accelerates fatigue of materials and failure, integrated protection is provided to each component；
It is stuck in the card slot of hammer core using the rotation locking lid both sides card wing simultaneously and carries out axial restraint, solved in the prior art
The problem of bolster gland is easy Broken bolt by high-strength bolt is connect with hammer core；
Pass through gap between buffing pad and hammer body hammer core plus wear-resistant liquid using the effect of the elastic buffer of bolster simultaneously
Flow overflow cushioning effect, while further wear-resistant, the heat resistanceheat resistant to the bolster for hammering core inner into shape of wear-resistant liquid, erosion-resisting guarantor
Shield.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of hammer core buffer control method of hydraulic pile driver, which is characterized in that it includes the following steps：
(1) one buffing pad is set in hammer in-core chamber, which has to protrude outward from buffing pad peripheral surface to be formed
Protruding portion；
(2) protruding portion on the buffing pad will hammer in-core chamber into shape and be separated into upper and lower two buffering areas, and prominent on the buffing pad
Go out portion's lateral wall and hammer into shape and is reserved with and can be used for wear-resistant liquid crossfire in upper and lower two buffering areas between in-core chamber inner sidewall
Gap；
(3) hammer core is arranged on hydraulic lifting apparatus, is discharged after so that hammer core is promoted to predetermined altitude by device, hammers core into shape
Pile body is struck in a manner of freely falling body；When hammering core impact pile body into shape, just exist in the device cylinder piston rod of high-speed downstream and setting
Parts on piston rod, by hammer into shape in-core bolster gland in upper buffering area buffering spacer and bolster compress,
Slow down downlink under the damping of compression buffering spacer and bolster, first, cushion cylinder piston rod and setting are on the piston rod
The rigid impulsive contact force of parts, the buffering spacer then descended in buffering area and bolster receive remaining downlink power and are compressed, into
One step absorbs generated rigid impulsive contact force when hammer core impact pile body；Meanwhile hammer into shape core impact pile body after moment bounce also by it is upper,
Buffering spacer and bolster in lower two buffering areas weaken jointly, and generated bounce is to oil when reducing hammer core impact pile body
Cylinder piston rod and impact in the parts of piston rod is set；Directly in upper and lower two buffering areas of hammer in-core setting, pass through two
The rigid impulsive contact force and bounce of the generation after buffering spacer and bolster collaboration cushioning control hammer core shock in buffering area prolong
Slow action time makes the wear-resistant liquid in two buffering areas simultaneously with the mutual crossfire of forced compression, makes it with Impact direction
Energy release areas is quickly reached, the heat that buffering spacer and bolster are generated because absorbing crash energy is reduced.
A kind of combined hammer core buffer unit for implementing the above method comprising one is equipped with the hammer core of inner cavity, the hammer core
Inner cavity is provided with buffing pad, and the buffing pad, which has from buffing pad peripheral surface, protrudes outward the protruding portion to be formed, the buffering
The hammer in-core chamber is separated into upper and lower two buffering areas, and the protruding portion lateral wall on the buffing pad and hammer by the protruding portion on seat
The gap that can be used for wear-resistant liquid crossfire in upper and lower two buffering areas is reserved between in-core chamber inner sidewall.
It is further improved as this hammer core combined buffer device, is both provided in upper and lower two buffering areas of hammer core
Bolster and it is in bolster buffering spacer upper and lower surfaces of, buffering area includes bolster gland and rotation lock on the hammer core
Tight lid, on bolster gland top, the bolster gland is arranged on upper buffering area bolster for the rotation locking lid setting
Portion, while in-core chamber top seal will be hammered into shape；Buffering area includes sealing element and guide sleeve under the hammer core, and the guiding is set on
Lower buffering area bolster lower part, the sealing element are arranged in guide sleeve lower part, while will hammer in-core chamber lower seal into shape.
It is further improved as this hammer core combined buffer device, the hammer core combined buffer device further includes two right
Claim setting that can will rotate locking lid and be axially fixed in the locking lid fixed seat hammered into shape on core, the locking lid fixed seat setting is being hammered into shape
Core top, the locking lid fixed seat are structure as a whole with hammer core.
It is further improved as this hammer core combined buffer device, the bolster is disc spring or cushion pad.
It is further improved as this hammer core combined buffer device, the bolster gland is the L-shaped column in cross section
Shape body, the column for being somebody's turn to do " L " shape includes the longitudinal sections and traversing section of integral structure.
It being further improved as this hammer core combined buffer device, the rotation locking lid is set on bolster gland,
Its bottom is pressed on bolster gland traversing section.
It is further improved as this hammer core combined buffer device, the rotation locking lid outer body wall is equipped with symmetrical
The outwardly projecting card wing is set.
It is further improved as this hammer core combined buffer device, the locking lid fixed seat setting is in rotation locking lid
Outside, the locking lid fixed seat ontology madial wall is equipped with the card slot that can be placed for rotating the locking lid card wing,
It is further improved as this hammer core combined buffer device, the locking lid fixed seat ontology is equipped with for fixing
The latch segment that rotation locking lid is used, the latch segment are equipped with anti-rotation pin hole and bolt hole；The locking lid fixed seat and rotation
The locking lid card wing also is provided with the anti-rotation pin hole and bolt hole being linearly arranged with latch segment anti-rotation pin hole and bolt hole；
The hammer core combined type buffer structure further includes stop pin and bolt, and the stop pin and screw bolt passes are locked
Block, locking lid fixed seat and the anti-rotation pin hole and bolt hole that rotate locking lid, by rotation locking lid and locking lid fixed seat axis
To fixation.
Beneficial effects of the present invention are：
1, hammer core buffer control method provided by the invention, the reduction hardness impulsive contact force that can be effectively directed to after hammer core impact
Or bounce, the buffering working efficiency and stability of whole device are significantly improved, the service life of each part of appliance is improved；Work as hammer
When core strikes pile body, the parts of the cylinder piston rod of downlink and setting on the piston rod are by hammering core bolster gland into shape to upper buffering
Buffering spacer and bolster in area are compressed, and downlink of slowing down under the damping of compression buffering spacer and bolster is delayed first
The rigid impulsive contact force for having rushed cylinder piston rod and setting parts on the piston rod, and then descend buffering spacer in buffering area and
Bolster is compressed in the remaining downlink power of receiving, further absorbs generated hardness impulsive contact force when hammer core impact pile body；
Secondly, hammer core impact pile body after moment bounce also by upper and lower two buffering areas buffering spacer and bolster weaken jointly,
To cylinder piston rod and impact in the parts of piston rod is arranged in generated bounce when reducing hammer core impact pile body；
2, hammer core buffer unit provided by the invention, buffing pad have protruded outward from buffing pad peripheral surface to be formed it is prominent
Go out portion, which is separated into upper and lower two buffering areas by the protruding portion on buffing pad, and outside the protruding portion on the buffing pad
It is reserved with the gap that can be used for wear-resistant liquid crossfire in upper and lower two buffering areas between side wall and hammer in-core chamber inner sidewall.
Overflow is flowed using the elastic buffer effect of bolster by gap between buffing pad and hammer body hammer core plus wear-resistant liquid to buffer
Effect, while further wear-resistant, the heat resistanceheat resistant to the bolster for hammering core inner into shape of wear-resistant liquid, erosion-resisting protection.
3, hammer core buffer unit provided by the invention, including two locking lids arranged symmetrically that can will rotate are axially fixed in
Hammer the locking lid fixed seat on core into shape, on hammer core, locking lid fixed seat is structure as a whole the setting of locking lid fixed seat with hammer core；Rotation
Turn locking lid and rotate 90 degree, the rotation locking lid both sides card wing is made to be stuck in hammer core annular slot, utilizes rotation locking lid both sides card
The wing, which is stuck in the card slot of hammer core, carries out axial restraint, solves bolster gland in the prior art and is connect with hammer core by high-strength bolt
And the problem of being easy Broken bolt.
For more clearly illustrate the present invention structure feature and effect, come below in conjunction with the accompanying drawings with specific embodiment to its into
Row is described in detail.
Description of the drawings
Fig. 1 show the structural schematic diagram of combined hammer core buffer unit provided by the invention；
Fig. 2 show the vertical view of Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Refering to attached drawing 1-2, the hammer core buffer control method of hydraulic pile driver provided in this embodiment comprising following step
Suddenly：
(1) one buffing pad 2 is set in 1 inner cavity of hammer core, which, which has, protrudes outward to be formed from buffing pad peripheral surface
Protruding portion 2.1；
(2) protruding portion 2.1 on the buffing pad 2 is separated into upper and lower two buffering areas, and the buffing pad 2 by 1 inner cavity of core is hammered into shape
On 2.1 lateral wall of protruding portion and hammer core 1 in be reserved between chamber inner sidewall can be for wear-resistant liquid in upper and lower two buffering areas
The gap that 14 crossfires are used；
(3) hammer core 1 is arranged on hydraulic lifting apparatus, hammer core 1 is made to be promoted to fast quick-release after predetermined altitude by device
It puts, hammer core 1 strikes pile body in a manner of freely falling body；When hammering the impact pile body of core 1 into shape, just in the device cylinder piston rod of high-speed downstream
And the parts of setting on the piston rod, by hammering the bolster gland 6 in core 1 into shape to the buffering spacer and bolster in upper buffering area
5 are compressed, and downlink of slowing down under the damping of compression buffering spacer and bolster 5, first, cushion cylinder piston rod and setting exist
The rigid impulsive contact force of parts on piston rod, the buffering spacer and then descended in buffering area and bolster 5 receive remaining downlink
Power is compressed, and generated rigid impulsive contact force when hammer core impact pile body is further absorbed；Meanwhile hammering moment after core impact pile body into shape
Bounce also by upper and lower two buffering areas buffering spacer and bolster weaken jointly, reduce hammer core impact pile body when produced
Raw bounce is cylinder piston rod and local temperature rise caused by being arranged in the impact of the parts of piston rod is excessively high and rapid fatigue
Deng adverse effect；Upper and lower two buffering areas directly are set in hammer in-core, the buffering spacer and bolster in two buffering areas are common
Cushioning control hammer into shape core hit after generation rigid impulsive contact force and bounce, while the wear-resistant liquid in two buffering areas with by
The mutual crossfire of force compresses can quickly reach energy release areas with Impact direction, reduce buffering spacer and bolster 5 because inhaling
Receipts ability and generate heat, provide integrated protection for each component.
The present embodiment provides a kind of combined hammer core buffer unit for implementing said program is additionally provided, including with inner cavity
Hammer core 1, hammer core 1 inner cavity is provided with buffing pad 2, and buffing pad 2, which has from buffing pad peripheral surface, protrudes outward the protrusion to be formed
1 inner cavity of hammer core is separated into upper and lower two buffering areas by portion 2.1, the protruding portion 2.1 on buffing pad 2, and on the buffing pad 2
Being reserved between chamber inner sidewall in 2.1 lateral wall of protruding portion and hammer core 1 can be for wear-resistant liquid crossfire in upper and lower two buffering areas
The gap being used.
It is further improved as this hammer core combined buffer device, hammers into shape in 1 upper and lower two buffering area of core and be both provided with buffering
Part 5 and be in 5 buffering spacer upper and lower surfaces of of bolster, hammer into shape core 1 on buffering area include bolster gland 6 and rotation locking lid
7, the setting of rotation locking lid 7 on 6 top of bolster gland, on upper buffering area bolster top simultaneously will by the setting of bolster gland 6
Hammer 1 inner cavity top seal of core into shape；Hammer 1 time buffering area of core includes sealing element 4 and guide sleeve 3, and the setting of guide sleeve 3 is buffered in lower buffering area
5 lower part of part, sealing element 4 are arranged in 3 lower part of guide sleeve, while will hammer 1 inner cavity lower seal of core into shape.
It is further improved as this hammer core combined buffer device, hammer core combined buffer device further includes two and symmetrically sets
Locking lid 7 can will be rotated by, which setting, is axially fixed in the locking lid fixed seat 8 hammered into shape on core 1, and the setting of locking lid fixed seat 8 is in hammer core 1
Top, locking lid fixed seat 8 are structure as a whole with hammer core 1.
It is further improved as this hammer core combined buffer device, bolster 5 is disc spring or cushion pad.
It is further improved as this hammer core combined buffer device, bolster gland 6 is the L-shaped column in cross section
Body, the column for being somebody's turn to do " L " shape includes the longitudinal sections and traversing section of integral structure.
It being further improved as this hammer core combined buffer device, rotation locking lid 7 is set on bolster gland 6,
Bottom is pressed on 6 traversing section of bolster gland.
It is further improved as this hammer core combined buffer device, rotation 7 outer body wall of locking lid, which is equipped with, symmetrically to be set
Set the outwardly projecting card wing 9.
It being further improved as this hammer core combined buffer device, the setting of locking lid fixed seat 8 is rotating outside locking lid 7,
8 ontology madial wall of locking lid fixed seat is equipped with the card slot 10 that can be placed for rotating the 7 card wing 9 of locking lid,
It is further improved as this hammer core combined buffer device, 8 ontology of locking lid fixed seat is equipped with for fixed rotation
Turn the latch segment 11 that locking lid 7 is used, latch segment 11 is equipped with anti-rotation pin hole 12 and bolt hole 13；Locking lid fixed seat 8 and rotation
The locking lid card wing 9 also is provided with the anti-rotation pin hole and bolt hole that are linearly arranged with 11 anti-rotation pin hole 12 of latch segment and bolt hole 13；
Hammer core combined type buffer structure further includes stop pin and bolt, and stop pin and screw bolt passes latch segment are locked
Lid fixed seat 8 and the anti-rotation pin hole and bolt hole for rotating locking lid 7, rotation locking lid 7 is axial solid with locking lid fixed seat 8
It is fixed.
The present invention design focal point be：
1, hammer core buffer control method provided by the invention can effectively be directed to the reduction hardness after hammer core 1 strikes and collide
Power or bounce, significantly improve the stability of whole device, improve the service life of each part of appliance indirectly；When hammer core 1 strikes
When pile body, the parts of the cylinder piston rod of downlink and setting on the piston rod are by hammering core bolster gland 6 into shape in upper buffering area
Buffering spacer and bolster 5 compressed, slow down downlink under the damping of compression buffering spacer and bolster, first, buffering
The rigid impulsive contact force of the parts of cylinder piston rod and setting on the piston rod, the buffering spacer and then descend in buffering area and delays
Stamping is compressed in the remaining downlink power of receiving, further absorbs generated hardness impulsive contact force when hammer core impact pile body；Its
It is secondary, hammer core impact pile body after moment bounce also by upper and lower two buffering areas buffering spacer and bolster 5 jointly weaken,
To cylinder piston rod and impact in the parts of piston rod is arranged in generated bounce when reducing hammer core impact pile body；
2, this hammer core buffer unit, buffing pad 2, which has, protrudes outward the protruding portion 2.1 to be formed from buffing pad peripheral surface,
1 inner cavity of hammer core is separated into upper and lower two buffering areas, and the protruding portion on the buffing pad 2 by the protruding portion 2.1 on buffing pad 2
It is reserved with and can be used for 14 crossfire of wear-resistant liquid in upper and lower two buffering areas between chamber inner sidewall in 2.1 lateral walls and hammer core 1
Gap.It is flowed by gap between buffing pad 2 and hammer body hammer core 1 plus wear-resistant liquid using the elastic buffer effect of bolster
Overflow cushioning effect, while further wear-resistant, the heat resistanceheat resistant to the bolster 5 inside hammer core 1 of wear-resistant liquid, erosion-resisting protection.
1, this hammer core buffer unit, including two arranged symmetrically can be axially fixed in rotation locking lid 7 are hammered into shape on core 1
Locking lid fixed seat 8, on hammer core 1, locking lid fixed seat 8 is structure as a whole the setting of locking lid fixed seat 8 with hammer core 1；Rotation
Locking lid 7 rotates 90 degree, and the 7 both sides card wing 9 of rotation locking lid is made to be stuck in hammer 1 annular slot 10 of core, utilizes 7 liang of locking lid of rotation
The side card wing 9 be stuck in hammer core 1 card slot 10 in carry out axial restraint, solve in the prior art bolster gland by high-strength bolt with
The problem of hammering core connection into shape and being easy Broken bolt.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore every content without departing from technical solution of the present invention, equivalent change made by shape according to the present invention, construction and principle
Change, should all be covered by protection scope of the present invention.
Claims (10)
1. a kind of hammer core buffer control method of hydraulic pile driver, which is characterized in that it includes the following steps：
(1) one buffing pad is set in hammer in-core chamber, which, which has from buffing pad peripheral surface, protrudes outward the protrusion to be formed
Portion；
(2) protruding portion on the buffing pad is separated into upper and lower two buffering areas, and the protruding portion on the buffing pad by in-core chamber is hammered into shape
It is reserved with the seam that can be used for wear-resistant liquid crossfire in upper and lower two buffering areas between lateral wall and hammer in-core chamber inner sidewall
Gap；
(3) hammer core is arranged on hydraulic lifting apparatus, is discharged after so that hammer core is promoted to predetermined altitude by device, hammer core is with certainly
Pile body is struck by falling bodies mode；When hammering core impact pile body into shape, just in the device cylinder piston rod of high-speed downstream and setting in piston
Parts on bar, by hammer into shape in-core bolster gland in upper buffering area buffering spacer and bolster compress, pressing
Deceleration downlink under the damping of contracting buffering spacer and bolster, first, the parts of cushion cylinder piston rod and setting on the piston rod
Rigid impulsive contact force, the buffering spacer then descended in buffering area and bolster receive remaining downlink power and compressed, further
Absorb generated rigid impulsive contact force when hammer core impact pile body；Meanwhile hammer into shape core impact pile body after moment bounce also by upper and lower two
Buffering spacer and bolster in a buffering area weaken jointly, and generated bounce lives to oil cylinder when reducing hammer core impact pile body
Stopper rod and impact in the parts of piston rod is set；Directly in upper and lower two buffering areas of hammer in-core setting, buffered by two
The rigid impulsive contact force of the generation after buffering spacer and bolster collaboration cushioning control hammer core shock in area and bounce, delay are made
With the time, makes the wear-resistant liquid in two buffering areas simultaneously with the mutual crossfire of forced compression, keep it quick with Impact direction
Energy release areas is reached, the heat that buffering spacer and bolster are generated because absorbing crash energy is reduced.
2. a kind of combined hammer core buffer unit for implementing claim 1 the method, which is characterized in that it includes being equipped with inner cavity
Hammer core, the hammer in-core chamber is provided with buffing pad, and the buffing pad has to protrude outward from buffing pad peripheral surface to be formed
The hammer in-core chamber is separated into upper and lower two buffering areas by protruding portion, the protruding portion on the buffing pad, and prominent on the buffing pad
Go out portion's lateral wall and hammer into shape and is reserved with and can be used for wear-resistant liquid crossfire in upper and lower two buffering areas between in-core chamber inner sidewall
Gap.
3. combined hammer core buffer unit according to claim 1, which is characterized in that upper and lower two buffering areas of hammer core
It is inside both provided with bolster and is in bolster buffering spacer upper and lower surfaces of, buffering area includes bolster pressure on the hammer core
Lid and rotation locking lid, on bolster gland top, the bolster gland is arranged in upper buffering for the rotation locking lid setting
Area bolster top, while in-core chamber top seal will be hammered into shape；Buffering area includes sealing element and guide sleeve under the hammer core, described to lead
To lower buffering area bolster lower part is set on, the sealing element is arranged in guide sleeve lower part, while it is close to hammer in-core chamber lower part into shape
Envelope.
4. combined hammer core buffer unit according to claim 3, which is characterized in that the hammer core combined buffer device is also
Locking lid can will be rotated by, which being symmetrical arranged including two, is axially fixed in the locking lid fixed seat hammered into shape on core, and the locking lid is fixed
Seat setting is structure as a whole in hammer core top, the locking lid fixed seat with hammer core.
5. combined hammer core buffer unit according to claim 3, which is characterized in that the bolster is disc spring or buffering
Pad.
6. combined hammer core buffer unit according to claim 3, which is characterized in that the bolster gland is in for cross section
The column of " L " shape, the column for being somebody's turn to do " L " shape includes the longitudinal sections and traversing section of integral structure.
7. combined hammer core buffer unit according to claim 3, which is characterized in that the rotation locking lid is set in buffering
On part gland, bottom is pressed on bolster gland traversing section.
8. combined hammer core buffer unit according to claim 3, which is characterized in that the rotation locking lid outer body wall
On be provided symmetrically the outwardly projecting card wing.
9. combined hammer core buffer unit according to claim 8, which is characterized in that the locking lid fixed seat setting is being revolved
Turn outside locking lid, the locking lid fixed seat ontology madial wall is equipped with can be for the arc card of rotation locking lid card wing placement
Slot.
10. combined hammer core buffer unit according to claim 1, which is characterized in that on the locking lid fixed seat ontology
Equipped with the latch segment being used for fixed rotation locking lid, the latch segment is equipped with anti-rotation pin hole and bolt hole；The locking lid
Fixed seat and the rotation locking lid card wing also are provided with the anti-rotation pin hole being linearly arranged with latch segment anti-rotation pin hole and bolt hole and spiral shell
Keyhole；
The hammer core combined type buffer structure further includes stop pin and bolt, the stop pin and screw bolt passes latch segment,
Locking lid fixed seat and the anti-rotation pin hole and bolt hole for rotating locking lid, rotation locking lid is axially solid with locking lid fixed seat
It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238260.0A CN108385684A (en) | 2018-03-22 | 2018-03-22 | A kind of the hammer core buffer control method and combined hammer core buffer unit of hydraulic pile driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238260.0A CN108385684A (en) | 2018-03-22 | 2018-03-22 | A kind of the hammer core buffer control method and combined hammer core buffer unit of hydraulic pile driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108385684A true CN108385684A (en) | 2018-08-10 |
Family
ID=63067930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810238260.0A Pending CN108385684A (en) | 2018-03-22 | 2018-03-22 | A kind of the hammer core buffer control method and combined hammer core buffer unit of hydraulic pile driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108385684A (en) |
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| CN109024588A (en) * | 2018-10-19 | 2018-12-18 | 广东力源液压机械有限公司 | A kind of hydraulic hammer elastic connection and buffer control method and shock-damping structure |
| CN110966275A (en) * | 2019-12-30 | 2020-04-07 | 广东力源液压机械有限公司 | Damping buffering method of large-flow throttling buffering cartridge valve and cartridge valve |
| CN111042129A (en) * | 2019-12-24 | 2020-04-21 | 广东力源液压机械有限公司 | Anti-loosening method and device for hammer core of hydraulic pile driver |
| CN114412903A (en) * | 2021-12-23 | 2022-04-29 | 太重（天津）滨海重型机械有限公司 | Fastener device and hydraulic pile hammer buffering sleeve |
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| CN109024588A (en) * | 2018-10-19 | 2018-12-18 | 广东力源液压机械有限公司 | A kind of hydraulic hammer elastic connection and buffer control method and shock-damping structure |
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| CN110966275A (en) * | 2019-12-30 | 2020-04-07 | 广东力源液压机械有限公司 | Damping buffering method of large-flow throttling buffering cartridge valve and cartridge valve |
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| CN114412903A (en) * | 2021-12-23 | 2022-04-29 | 太重（天津）滨海重型机械有限公司 | Fastener device and hydraulic pile hammer buffering sleeve |
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