CN218643359U - Compound integral type hydraulic hammer core of direction nature - Google Patents

Abstract

The utility model discloses a compound integral type hydraulic hammer core of guidance quality, including the piston rod, hammer the core body, tup and a plurality of direction antifriction plate and screw, the both ends terminal surface of hammer the core body respectively with the piston rod, tup arc transitional coupling, the piston rod, hammer the core body, the tup from top to bottom integrated into one piece formation integral type hammer core, on the side at hammer core body both ends respectively the circumference equipartition be equipped with a plurality of antifriction plate mounting grooves, the direction antifriction plate passes through the screw phase-match and installs on the antifriction plate mounting groove, has the clearance between the two adjacent direction antifriction plate. In addition, a gap is arranged between two adjacent guide wear plates to reduce the guide friction area between the guide wear plates and the hammer shell and improve the working efficiency and stability of the hammer core; and the integrated structure is made, so that the connection faults of the equipment in the use process are reduced.

Description

Compound integral type hydraulic hammer core of direction nature

Technical Field

The utility model relates to a hydraulic hammer technical field especially relates to a compound integral type hydraulic hammer core of guidance quality.

Background

The pile foundation is a construction engineering foundation form widely applied to land and sea; with the increasing development and progress of the engineering construction in China, ocean engineering, sea filling and island building, offshore wind power, large bridges, high-rise buildings on land and the like in China are greatly improved, the pile foundation construction difficulty of the engineering becomes higher and higher, the length and the diameter of a foundation pile become larger and larger, so that a piling machine for penetrating the foundation pile into the stratum is required to have higher striking energy and higher striking frequency, and in order to meet the construction requirement, a hydraulic piling hammer enters the visual field of people. In the working process of the hydraulic pile hammer, after the hammer core is lifted to a specified height, the upper cavity and the lower cavity of the hydraulic cylinder are communicated immediately to form differential connection. Because the effective working area of the upper cavity piston is larger than that of the lower cavity piston, downward hydraulic thrust can be generated to push the hammer core to fall down at an accelerated speed. Because the hammer core of the hydraulic hammer is a reciprocating high-strength impact part, in the using process, the inventor finds that the hammer core of the existing hydraulic hammer is lack of guidance, collision and friction faults are easy to occur between the hammer core of the hydraulic hammer and the hammer shell, and the working efficiency of the hammer core is influenced.

Therefore, it is necessary to develop a hydraulic hammer core with guiding performance.

Disclosure of Invention

The utility model aims at providing a compound integral type hydraulic hammer core of guidance quality, this hydraulic hammer core of hammer establishes the direction antifriction plate on the both ends side of hammer core body in a week, guarantees that the hammer core has good guidance quality when reciprocating in the hammer shell, in addition, is equipped with the clearance between the two adjacent direction antifriction plates to reduce the direction friction area between direction antifriction plate and the hammer shell, improves the work efficiency and the stability of hammer core; and the piston rod, the hammer core body and the hammer head are made into an integrated structure, so that the connection fault of the equipment in the use process is reduced.

The technical scheme is as follows:

the utility model provides a compound integral type hydraulic hammer core of guidance quality, includes piston rod, hammer core body, tup and a plurality of direction antifriction plate and screw, the both ends terminal surface of hammer core body respectively with piston rod, tup arc transitional coupling, piston rod, hammer core body, tup form integral type hammer core by last down integrated into one piece, the hammer core body is the cylinder type, be equipped with a plurality of antifriction plate mounting grooves, a plurality of respectively on the side at hammer core body both ends antifriction plate mounting groove circumference equipartition is in on the upper end side and the lower extreme side of hammer core body, the direction antifriction plate passes through the screw phase-match is installed on the antifriction plate mounting groove, two adjacent have the clearance between the direction antifriction plate.

The guide wear-resisting plate is made of wear-resisting nylon.

The middle part of the hammer core body comprises a stroke detection section, a plurality of annular grooves are sequentially formed in the side face of the stroke detection section from top to bottom, two adjacent annular protrusions between the annular grooves form a hammer core stroke detection ring, and the annular grooves correspond to the annular protrusions in width.

The width of the hammer core stroke detection ring is 50mm to 100mm.

The middle part of the hammer core body further comprises a transportation positioning section, the transportation positioning section is located above the stroke detection section, and a transportation positioning ring groove is formed in the transportation positioning section.

The piston assembly is arranged on the piston mounting annular groove.

The piston assembly comprises a piston retaining ring, a piston main body and a piston ring, wherein a first ring groove is formed in the piston mounting ring groove, the piston retaining ring is mounted on the first ring groove, a positioning spigot is arranged on the inner side of the upper end of the piston main body, the piston ring and the piston main body are sequentially mounted on the piston mounting ring groove from bottom to top, and the positioning spigot of the piston main body is clamped on the outer side of the piston retaining ring.

The piston ring is characterized in that a plurality of first lubricating oil holes are formed in the end face of the lower end of the piston ring, a plurality of annular lubricating oil grooves are formed in the outer side face of the piston ring, a plurality of second lubricating oil holes are formed in each lubricating oil groove, and the lubricating oil grooves are communicated with the first lubricating oil holes through the second lubricating oil holes.

Piston assembly still includes two static sealing washer, second ring groove, third ring groove have still been seted up in the piston mounting ring channel, second ring groove, third ring groove are located the below of first ring groove, two static sealing washer is installed respectively second ring groove, third ring groove, the cladding of piston main part is two the outside of static sealing washer.

The piston assembly still includes first piston wear ring, second piston wear ring, first movable seal circle, second movable seal circle, the outside of piston main part is from top to bottom be equipped with first wear ring annular, first movable seal ring groove, second movable seal ring groove, the wear ring annular of second in proper order, first piston wear ring, first movable seal circle, second piston wear ring are installed respectively on first wear ring annular, first movable seal ring annular, second movable seal ring annular, the wear ring annular of second.

It should be noted that:

the foregoing "first and second …" do not denote any particular quantity or order, but are merely used for name differentiation.

In the description of the present invention, it should be understood that the terms "upper" and "lower" are used as the terms of the orientation or the positional relationship based on the drawings, or the orientation or the positional relationship that the product of the present invention is usually placed when using, or the orientation or the positional relationship that the person skilled in the art usually understands, only for the convenience of describing the present invention and simplifying the description, but not for the indication or the suggestion that the device or the element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be interpreted as the limitation of the present invention.

The advantages or principles of the present invention are explained below:

1. the utility model provides a compound integral type hydraulic hammer core of guidance quality, it includes piston rod, hammer core body, tup and a plurality of direction antifriction plate and screw, with piston rod, hammer core body, tup design as an organic whole hammer core, reduce the equipment in the use, the hammer core body respectively with the fault rate of piston rod and tup junction, with the both ends of hammer core body respectively with piston rod, tup arc transitional coupling, under the impact load effect in the striking process, guarantee that piston rod and tup have sufficient structural strength; in addition, gaps are arranged between two adjacent guide wear plates, and the arrangement of the gaps increases the polishing cost of the wear plate mounting groove during polishing, but can reduce the guide friction area between the guide wear plates and the hammer shell during the working of the hydraulic hammer core, thereby improving the working efficiency and stability of the hammer core; the hydraulic pile hammer can be widely applied to various large-scale hydraulic pile hammers and other equipment, the performance is improved, and the service life is prolonged.

2. Preferably, the direction antifriction plate adopts wear-resisting nylon to make, improves the life of antifriction plate.

3. The utility model discloses establish hammer core stroke detection ring at the middle part of hammer core body, the sensor is established at the hammer shell to the accessible for the number of teeth of response hammer core stroke detection ring obtains the accurate lifting height of hammer core, predicts the mode that promotes with the tradition through-time and compares, and the accuracy nature of assurance lifting height that this method can be more accurate.

4. The utility model discloses still be equipped with transportation positioning ring groove at the middle part of hammer core body, transportation positioning ring groove's effect lies in when transporting the pile hammer, uses the transportation locating pin top on the annular face of the transportation positioning ring groove of hammer core for the hammer core can not remove when the transportation, guarantees the transportation security.

5. The utility model also comprises a piston assembly, the upper end of the piston rod is provided with the piston assembly, the piston assembly is used for isolating hydraulic oil below the piston assembly from entering the air cavity above the piston rod, when the integral hammer core rises, the piston assembly compresses the gas in the upper air cavity, and the gas pressure in the upper air cavity increases for energy storage; when the integral hammer core falls, the energy stored by the compressed gas in the upper cavity is released, and the integral hammer core falls at a speed higher than the gravity acceleration under the dual actions of the gravity potential energy and the compressed potential energy of the gas, so that the falling speed and the striking energy of the hammer core are improved.

6. The utility model discloses a piston assembly includes piston retaining ring, piston main part, piston ring, and the upper end inboard of piston main part is equipped with the location tang, and the location tang card of piston main part is in the outside of piston retaining ring avoids piston main part, piston ring to make progress the axial and slide.

7. The utility model discloses a be equipped with a plurality of first lubrication oil holes, second lubrication oil hole and a plurality of lubrication oil groove on the piston ring for during the hydraulic oil that makes the piston cavity of resorption enters into first lubrication oil hole, second lubrication oil hole and a plurality of lubrication oil groove, be convenient for to the lubrication of piston.

8. The utility model discloses a piston assembly still includes two static sealing washer, and the static sealing washer is used for keeping apart the hydraulic oil of piston below and gets into the piston top from the gap between piston main part and the piston rod.

9. The utility model discloses a piston assembly still includes first piston wear ring, second piston wear ring, first movable seal circle, second movable seal circle, and two piston wear rings are used for the support piston respectively, improve the wear-resisting effect, and two movable seal circles are used for keeping apart the hydraulic oil flow of piston below respectively and are toward the piston top to and epicoele compressed gas enters into the cavity of resorption.

Drawings

Fig. 1 is a front view of a hammer core of a guided composite integrated hydraulic hammer according to an embodiment of the present invention.

Fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a side view of an integrated hammer core according to an embodiment of the present invention.

Fig. 4 is a sectional view of B-B in fig. 3.

Fig. 5 is a schematic perspective view of the guiding wear-resisting plate according to the embodiment of the present invention.

Fig. 6 is a sectional view of a piston body according to an embodiment of the present invention.

Fig. 7 is a sectional view of a piston ring according to an embodiment of the present invention.

Description of reference numerals:

10. the piston rod, 11, a piston mounting annular groove, 111, a first annular groove, 112, a second annular groove, 113, a third annular groove, 20, a hammer core body, 21, an abrasion plate mounting groove, 22, an annular groove, 23, a hammer core stroke detection ring, 24, a transportation positioning annular groove, 30, a hammer head, 40, a guide abrasion plate, 41, a gap, 50, a screw, 60, a piston assembly, 61, a piston retaining ring, 62, a piston main body, 621, a positioning spigot, 622, a first abrasion ring groove, 623, a first dynamic seal annular groove, 624, a second dynamic seal annular groove, 625, a second abrasion ring annular groove, 63, a piston ring, 631, a first lubricating oil hole, 632, a lubricating oil groove, 633, a second lubricating oil hole, 64, a static seal ring, 65, a first piston abrasion ring, 66, a second piston abrasion ring, 67, a first dynamic seal ring, 68, and a second dynamic seal ring.

Detailed Description

The following describes embodiments of the present invention in detail.

The utility model provides a compound integral type hydraulic hammer core of guidance quality specifically can be applied to on equipment such as HHP50 of my department's production large-scale hydraulic pile hammer to promote the wholeness ability of this main equipment. Use the utility model discloses a large-scale hydraulic pressure pile hammer equipment has following advantage: and (3) environmental protection: the noise is low, no pollution is caused, and the influence on the surrounding environment in the construction process is thoroughly improved; high efficiency and energy conservation: the impact energy is large, and the penetrating power is strong; the controllability is strong: the impact stroke and the frequency can be adjusted at will, and the defects of difficult soft soil starting and the like are avoided; the pile forming quality is high: impact force can be reasonably selected according to the soil condition and the strength of the pile pipe material; the application is wide: the pile shapes such as a tubular pile, a square pile, an I-shaped steel pile, a steel pile with a protective cylinder and the like can be constructed; the adaptive range is as follows: the method is widely applied to the construction of pile foundations of buildings, bridges, wharfs, ocean engineering and the like.

Referring to fig. 1 to 7, the utility model provides a compound integral type hydraulic hammer core of guidance quality, including piston rod 10, hammer core body 20, tup 30 and a plurality of direction antifriction plate 40 and screw 50, the both ends terminal surface of hammer core body 20 respectively with piston rod 10, tup 30 arc transitional coupling, piston rod 10, hammer core body 20, tup 30 from top to bottom integrated into one piece formation integral type hammer core, hammer core body 20 is the cylinder type, be equipped with a plurality of antifriction plate mounting grooves 21 on the side at hammer core body 20 both ends respectively, a plurality of antifriction plate mounting grooves 21 circumference equipartitions are on the upper end side and the lower extreme side of hammer core body 20, direction antifriction plate 40 passes through the screw 50 phase-match and installs on antifriction plate mounting groove 21, clearance 41 has between two adjacent direction antifriction plate 40.

The utility model discloses with piston rod 10, hammer core 20, tup 30 design formula hammer core as an organic whole, reducible equipment in the use, hammer core 20 respectively with the fault rate of piston rod 10 and tup 30 junction. The two ends of the hammer core body 20 are respectively in arc transition connection with the piston rod 10 and the hammer head 30, so that the piston rod 10 and the hammer head 30 are ensured to have enough structural strength under the action of impact load in the striking process; establish direction antifriction plate 40 in circumference on the both ends side of hammer core body 20, during the use, direction antifriction plate 40 and hammer shell inner wall cooperation, guarantee that the hammer core has good guidance quality when reciprocating in the hammer shell, in addition, be equipped with clearance 41 between double-phase adjacent direction antifriction plate 40, the setting of clearance 41, although when polishing, the cost of polishing of antifriction plate mounting groove 21 has been increased, but at hydraulic hammer core during operation, can reduce the direction friction area between direction antifriction plate 40 and the hammer shell, thereby the work efficiency and the stability of hammer core have been improved.

The guiding wear-resisting plate 40 is made of wear-resisting nylon. The service life of the wear-resisting plate is prolonged.

The middle part of the hammer core body 20 comprises a stroke detection section and a transportation positioning section, a plurality of annular grooves 22 are sequentially formed in the side face of the stroke detection section from top to bottom, an annular bulge between two adjacent annular grooves 22 forms a hammer core stroke detection ring 23, and the annular grooves 22 correspond to the annular bulge in width. Preferably, the width of the hammer core stroke detecting ring 23 is 50mm to 100mm. The utility model discloses establish hammer core stroke at the middle part of hammer core body 20 and detect ring 23, the sensor is established at the hammer shell to the accessible for the number of teeth of response hammer core stroke detection ring 23 reachs the accurate lifting height of hammer core, predicts the mode that promotes with traditional through-time and compares, and the accuracy nature of assurance lifting height that this method can be more accurate.

The transportation positioning section is positioned above the stroke detection section, and a transportation positioning ring groove 24 is formed in the transportation positioning section. The transportation locating ring groove 24 is used for pushing the transportation locating pin against the ring surface of the transportation locating ring groove 24 of the hammer core when the pile hammer is transported, so that the hammer core cannot move during transportation, and the transportation safety is guaranteed.

The utility model discloses compound integral type hydraulic hammer core of guidance quality still includes piston assembly 60, is equipped with piston installation ring channel 11 on the upper portion side of piston rod 10, and piston assembly 60 installs on piston installation ring channel 11. The upper end of the piston rod 10 is provided with a piston assembly 60, the piston assembly 60 is used for isolating hydraulic oil below the piston assembly 60 from entering an air cavity above the piston rod 10, when the integral hammer core ascends, the piston assembly 60 compresses air in an upper air cavity, and the air pressure in the upper air cavity is increased for energy storage; when the integral hammer core falls, the energy stored by the compressed gas in the upper cavity air cavity is released, and the integral hammer core falls at a speed higher than the gravity acceleration under the dual actions of the gravity potential energy and the compressed potential energy of the gas, so that the falling speed and the striking energy of the hammer core are improved.

The piston assembly 60 comprises a piston retaining ring 61, a piston main body 62, a piston ring 63, a first piston wear-resisting ring 65, a second piston wear-resisting ring 66, a first movable sealing ring 67, a second movable sealing ring 68 and two static sealing rings 64, wherein a first annular groove 111 is formed in the piston mounting annular groove 11, the piston retaining ring 61 is mounted on the first annular groove 111, a positioning spigot 621 is formed in the inner side of the upper end of the piston main body 62, the piston ring 63 and the piston main body 62 are sequentially mounted on the piston mounting annular groove 11 from bottom to top, and the positioning spigot 621 of the piston main body 62 is clamped on the outer side of the piston retaining ring 61. The inner side of the upper end of the piston main body 62 is provided with a positioning stop 621, and the positioning stop 621 of the piston main body 62 is clamped on the outer side of the piston retaining ring 61, so that the piston main body 62 and the piston ring 63 are prevented from axially sliding upwards.

A second annular groove 112 and a third annular groove 113 are further formed in the piston mounting annular groove 11, the second annular groove 112 and the third annular groove 113 are located below the first annular groove 111, the two static seal rings 64 are respectively mounted in the second annular groove 112 and the third annular groove 113, and the piston main body 62 is wrapped outside the two static seal rings 64. The static seal 64 is used to isolate hydraulic oil below the piston from entering above the piston from the gap between the piston body 62 and the piston rod 10.

The outer side of the piston main body 62 is provided with a first wear-resistant ring groove 622, a first dynamic seal ring groove 623, a second dynamic seal ring groove 624 and a second wear-resistant ring groove 625 from top to bottom in sequence, and the first piston wear-resistant ring 65, the first dynamic seal ring 67, the second dynamic seal ring 68 and the second piston wear-resistant ring 66 are respectively arranged on the first wear-resistant ring groove 622, the first dynamic seal ring groove 623, the second dynamic seal ring groove 624 and the second wear-resistant ring groove 625. The two piston wear-resisting rings are used for supporting the piston respectively to improve the wear-resisting effect, the two movable sealing rings are used for isolating hydraulic oil below the piston from flowing to the upper part of the piston respectively, and compressed gas in the upper cavity enters the lower cavity. .

Be equipped with a plurality of first lubricated oil holes 631 on the terminal surface of piston ring 63 lower extreme, be equipped with a plurality of annular lubrication groove 632 on the lateral surface of piston ring 63, be equipped with a plurality of second lubricated oil holes 633 in each lubrication groove, the lubrication groove passes through second lubricated oil holes 633 and first lubricated oil hole 631 intercommunication. The utility model discloses a be equipped with a plurality of first lubrication oil hole 631, second lubrication oil hole 633 and a plurality of lubrication groove on the piston ring 63 for make the hydraulic oil of piston cavity of resorption enter into first lubrication oil hole 631, second lubrication oil hole 633 and a plurality of lubrication groove 632, be convenient for to the lubrication of piston.

I have produced, used the large-scale hydraulic pile hammer equipment such as HHP50 of the utility model, carried on the actual engineering application test, carried on the actual measurement on a plurality of workplaces, the result shows, adopt the utility model discloses a same type hydraulic pile hammer equipment, can improve the falling speed and strike the energy more than 5% of hammer core; the utility model discloses establish the wear-resisting ring of direction on the both ends side of hammer core body, can avoid the collision friction between hammer core and the hammer shell, guarantee that the hammer core has good guidance quality when reciprocating in the hammer shell, improved the work efficiency and the stability of hammer core. The utility model discloses but wide application reduces the fault rate more than 10% on equipment such as all kinds of large-scale hydraulic pile hammers, can improve its performance and life more than 5%.

The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims (10)

1. The utility model provides a compound integral type hydraulic hammer core of guidance quality, its characterized in that, including piston rod, hammer core body, tup and a plurality of direction antifriction plate and screw, the both ends terminal surface of hammer core body respectively with piston rod, tup arc transitional coupling, piston rod, hammer core body, tup from top to bottom integrated into one piece form the integral type hammer core, the hammer core body is the cylinder type, be equipped with a plurality of antifriction plate mounting grooves on the side at hammer core body both ends respectively, it is a plurality of antifriction plate mounting groove circumference equipartition is in on the upper end side and the lower extreme side of hammer core body, the direction antifriction plate passes through the screw phase-match is installed on the antifriction plate mounting groove, two adjacent have the clearance between the direction antifriction plate.

2. The guided composite integral hydraulic hammer core of claim 1, wherein the guiding wear plate is made of wear-resistant nylon.

3. The hammer core of the guided composite integrated hydraulic hammer of claim 1, wherein the middle of the hammer core body includes a stroke detection section, a plurality of annular grooves are sequentially formed in the side surface of the stroke detection section from top to bottom, an annular protrusion between two adjacent annular grooves forms a stroke detection ring of the hammer core, and the annular grooves correspond to the width of the annular protrusion.

4. A guided composite integral hydraulic hammer core according to claim 3, wherein the width of the hammer core stroke detection ring is 50mm to 100mm.

5. The guided composite integrated hydraulic hammer core according to claim 4, wherein the hammer core body further comprises a transportation positioning section in the middle thereof, the transportation positioning section is located above the stroke detection section, and the transportation positioning section is provided with a transportation positioning ring groove.

6. A guiding composite integral hydraulic hammer core according to any one of claims 1 to 5, further comprising a piston assembly, wherein a piston mounting annular groove is formed in the upper side surface of the piston rod, and the piston assembly is mounted on the piston mounting annular groove.

7. The guided composite integrated hydraulic hammer core according to claim 6, wherein the piston assembly includes a piston retaining ring, a piston main body, and a piston ring, a first annular groove is formed in the piston mounting annular groove, the piston retaining ring is mounted on the first annular groove, a positioning spigot is formed on the inner side of the upper end of the piston main body, the piston ring and the piston main body are mounted on the piston mounting annular groove in sequence from bottom to top, and the positioning spigot of the piston main body is clamped on the outer side of the piston retaining ring.

8. The hammer core of the guided combined integrated hydraulic hammer as claimed in claim 7, wherein a plurality of first lubricating oil holes are formed in an end surface of a lower end of the piston ring, a plurality of annular lubricating oil grooves are formed in an outer side surface of the piston ring, a plurality of second lubricating oil holes are formed in each lubricating oil groove, and the lubricating oil grooves are communicated with the first lubricating oil holes through the second lubricating oil holes.

9. The composite integral type hydraulic hammer core of guidance quality of claim 8, wherein the piston assembly further includes two static sealing rings, a second circular groove and a third circular groove are further disposed in the piston mounting ring groove, the second circular groove and the third circular groove are located below the first circular groove, the two static sealing rings are respectively mounted in the second circular groove and the third circular groove, and the piston main body covers the outer sides of the two static sealing rings.

10. The guided composite integrated hydraulic hammer core according to claim 9, wherein the piston assembly further comprises a first piston wear ring, a second piston wear ring, a first dynamic seal ring, and a second dynamic seal ring, the outer side of the piston main body is provided with a first wear ring groove, a first dynamic seal ring groove, a second dynamic seal ring groove, and a second wear ring groove in sequence from top to bottom, and the first piston wear ring, the first dynamic seal ring, the second dynamic seal ring, and the second piston wear ring are respectively mounted on the first wear ring groove, the first dynamic seal ring groove, the second dynamic seal ring groove, and the second wear ring groove.

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