CN213476871U - Cylinder type hydraulic pile hammer - Google Patents

Abstract

The utility model discloses a cylinder type hydraulic pile hammer, which comprises a hammer cylinder, a hammer core and a hydraulic cylinder, wherein the hammer cylinder comprises a hammer cylinder body, a plurality of cylinder transparent windows are arranged on the hammer cylinder body, and cylinder vertical ribs are fixedly arranged on the outer cylinder surface of the hammer cylinder body; the hydraulic cylinder comprises a cylinder body and a piston fixedly arranged on the piston, the piston is arranged in a cylinder cavity of the cylinder body in a sliding manner, a plurality of cylinder body oil holes are also arranged on the cylinder body, the cylinder body oil holes are parallel to the cylinder cavity of the cylinder body and are arranged around the cylinder cavity of the cylinder body, the lower end of each cylinder body oil hole is communicated with the cylinder cavity of the cylinder body, and the lower end of each piston rod is hinged with the hammer core; the cylinder body is supported at the upper end of the hammer barrel through a cylinder body swinging support structure. The cylinder body swing supporting structure comprises a cylinder body swing shaft and a swing frame pin shaft. The ratio T/T of the mass T of the hammer core to the total mass T of the pile driving hammer is =60% -80%. This cylinder hydraulic pressure pile hammer not only strikes energy and frequency height, and hammer core air resistance is little, is convenient for moreover observe and maintain, is favorable to improving pile hammer's efficiency of construction.

Description

Cylinder type hydraulic pile hammer

Technical Field

The utility model relates to a piling machinery for building engineering foundation construction especially relates to a hydraulic pressure pile hammer with cylinder guide structure.

Background

With the development of the building engineering towards the large-scale direction, the hydraulic pile hammer also develops towards the direction of higher striking energy and striking frequency; the great increase of the striking energy inevitably brings the increase of the mass of the hammer core and the total mass of the pile hammer, and the increase of the total mass of the pile hammer brings great inconvenience to the hoisting and transportation of the pile hammer, and even is difficult to use in some specific construction sites or construction conditions; the increase of the total mass of the pile hammer can also increase the weight gain of a pile frame, a construction platform and a hoisting device which are matched with the pile hammer, the difficulty in transportation and construction of the pile hammer is increased, and the expansion of the application range of the hydraulic pile hammer is restricted. Although the improvement of the striking frequency of the pile hammer can increase the striking energy and the striking efficiency, for the cylindrical hydraulic pile hammer, the frequent reciprocating motion of the hammer core in the hammer cylinder also increases the airflow resistance of the hammer core in the hammer cylinder, and the hammer core always receives the air pressure resistance opposite to the motion direction, so that the striking energy and the striking efficiency of the pile hammer are greatly reduced.

The increase of the striking energy and the striking frequency of the hydraulic pile hammer can also generate severe impact vibration, the severe impact vibration of the pile hammer can generate severe adverse effects on external oil circuits such as hydraulic oil inlet and outlet pipelines of the hydraulic hammer, and the winding and the impact of the oil pipe are easy to occur in the frequent reciprocating striking of the pile hammer due to excessive external oil circuit pipelines, so that the striking operation failure rate is increased. The violent impact vibration can cause serious adverse effect on the stable reciprocating motion of the hydraulic cylinder, during the vibration impact, the pile hammer generates strong and irregular lateral (radial) destructive force on the piston and the piston rod of the hydraulic cylinder, especially when the pile hammer performs inclined pile construction operation, the radial component force of the pile hammer is inevitable, the lateral (radial) component force generated on the piston and the piston rod by the pile hammer impact vibration or inclined pile operation can lead the telescopic motion of the piston rod to deviate to one side of the center of the cylinder body, thus leading the piston of the hydraulic cylinder to generate deviation abrasion on the cylinder barrel cavity, the piston rod to generate deviation abrasion on the cylinder body and a sealing element, leading the running precision of the pile hammer to be reduced, leading the motion gap to be enlarged, further leading the deviation abrasion of the hydraulic cylinder, and the deviation abrasion phenomenon not only can cause the continuous increase of the gap between the piston and the pile driving cavity, leading the pressure difference of the hydraulic cavities at two sides of, and the sealing element of the piston rod can be damaged or even fail, so that hydraulic oil leaks out, the hitting frequency of the pile hammer is seriously reduced, and the pile hammer even cannot work normally.

Although the cylindrical hydraulic pile hammer has the characteristics of high pile driving efficiency and excellent guiding performance, most of the moving parts and easily damaged parts of the cylindrical hydraulic pile hammer are sealed in the pile barrel of the pile hammer, such as the hydraulic cylinder and the sealing parts thereof, the connecting structure of the piston rod and the hammer core, and the guiding structure of the hammer core, which are located in the inner parts of the hammer barrel, are the most easily-faulted places, the heavy parts including the hammer core need to be disassembled during normal maintenance or fault removal, the maintenance is very troublesome, the time and the labor are consumed, and the use efficiency and the use cost of the pile hammer are directly influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a cylindrical hydraulic pile hammer which is high in hitting energy and frequency, small in air resistance of a hammer core, convenient to observe and maintain and beneficial to improvement of the construction efficiency of the pile hammer.

In order to solve the technical problem, the cylindrical hydraulic pile hammer comprises a hammer cylinder, a hammer core and a hydraulic cylinder, wherein the hammer cylinder comprises a hammer cylinder body, a plurality of cylinder through windows are arranged on the hammer cylinder body, and cylinder vertical ribs are fixedly arranged on the outer cylinder surface of the hammer cylinder body; the hydraulic cylinder comprises a cylinder body and a piston fixedly arranged on the piston, the piston is arranged in a cylinder cavity of the cylinder body in a sliding manner, a plurality of cylinder body oil holes are also arranged on the cylinder body, the cylinder body oil holes are parallel to the cylinder cavity of the cylinder body and are arranged around the cylinder cavity of the cylinder body, the lower end of each cylinder body oil hole is communicated with the cylinder cavity of the cylinder body, and the lower end of each piston rod is hinged with a hammer core; the cylinder body is supported at the upper end of the hammer barrel through a cylinder body swinging support structure.

In the structure, the hammer barrel body is provided with the plurality of barrel through windows, and the barrel vertical ribs are fixedly arranged on the outer barrel surface of the hammer barrel body, so that the total mass of the pile hammer is reduced under the condition of ensuring the quality of the hammer core to be unchanged by reducing the weight of non-working parts of the pile hammer to the maximum extent, the hitting energy of the pile hammer is ensured, the total mass of the pile hammer is effectively reduced, the hoisting, transportation and field construction of the pile hammer are facilitated, the weight of a pile frame, a construction platform and hoisting equipment matched with the pile hammer is lightened due to the reduction of the total mass of the pile hammer, the pile construction cost is further reduced, and the application range of the hydraulic hammer is effectively expanded; the arrangement of the vertical ribs of the cylinder body enhances the rigidity and the strength of the cylinder body of the pile hammer, stabilizes the guiding performance of the hammer cylinder to the hammer core, and enables the pile hammer to be more suitable for large-tonnage high-frequency construction operation. Particularly, the hammer barrel body is provided with the plurality of through windows, a barrel type guide structure with an open airflow channel is formed on the hammer core, the hammer core cannot be influenced by resistance of compressed airflow when frequently reciprocating in the hammer barrel, the mechanical energy of the hammer core can be efficiently transmitted to the foundation pile, and large-energy high-frequency piling construction is realized; the barrel through window is arranged on the hammer barrel body, so that the running condition of the moving part of the pile hammer can be mastered in real time through the through window, the maintenance, repair and timely fault removal of the pile hammer are facilitated, and the high use efficiency and long-term continuous construction operation of the pile hammer are ensured. The structure not only reduces the external pressure oil conveying pipelines of the hydraulic cylinder and avoids the impact and winding of external oil pipes, but also greatly reduces oil circuit connection points and improves the working stability and reliability of the hydraulic cylinder; the cylinder body cavity and the cylinder body oil hole are arranged on the cylinder body, so that the hydraulic cylinder is more compact in structure, the overall rigidity and structural strength of the hydraulic cylinder are enhanced, and the hydraulic cylinder is more suitable for reliable operation in an impact vibration environment. The cylinder body swing supporting structure is arranged on the outer side of the cylinder body, the follow-up hydraulic cylinder structure has better offset angle compensation capability, even if the movement direction of the pile hammer deviates from the central line of the hydraulic cylinder due to severe vibration, insufficient movement precision and the like, lateral component force cannot be generated on the piston rod, the reciprocating movement direction of the piston rod is enabled to be consistent with the movement direction of the pile hammer all the time, eccentric wear between the piston of the hydraulic cylinder and the cylinder cavity and between the piston rod and a sealing piece of the cylinder body is effectively avoided, normal operation of the hydraulic cylinder is guaranteed, pile driving efficiency of the hydraulic pile hammer is stabilized, operation faults of the hydraulic pile hammer are greatly reduced, and the service life of the hydraulic pile hammer is effectively prolonged.

In a further embodiment of the invention, the cylinder swing support structure comprises a cylinder swing shaft and a swing frame pin shaft, the cylinder is movably supported on the swing frame through the cylinder swing shaft, the swing frame is movably supported on a cylinder swing seat through the swing frame pin shaft, and the cylinder swing seat is fixedly installed at the upper end of the hammer barrel body. The upper end of the hammer barrel body is fixedly provided with a barrel upper end flange, and the cylinder body swing seat is fixedly arranged on the barrel upper end flange; the lower end of the hammer barrel body is fixedly provided with a barrel lower end flange, and the hammer core flange is fixedly connected to the barrel lower end flange. The cylinder body swing shaft and the swing frame pin shaft are perpendicular to each other; and a buffer pad is embedded on the lower end surface of the hammer core flange. The eccentric wear of the cylinder body and the piston is compensated and eliminated; the installation of the hydraulic cylinder body is convenient.

In a further embodiment of the invention, the ratio T/T of the mass T of the hammer core to the total mass T of the pile driving hammer is =60% -80%. Realize the lightweight of pile hammer.

In a further embodiment of the present invention, the hammer barrel body is provided with at least one circle of barrel through windows, and each circle of barrel through windows has at least one through window. The lightweight of pile hammer is favorable to realizing, the hammer core motion air lock is avoided appearing.

In a further embodiment of the invention, at least two cylinder vertical ribs are arranged on the outer cylinder surface of the hammer cylinder body, and each cylinder vertical rib extends from the upper end to the lower end of the hammer cylinder body; at least two transverse cylinder ribs are fixedly arranged between the adjacent vertical cylinder ribs. The vertical ribs of the cylinder body adopt a rod type structure or a ribbed plate structure; the transverse rib of the cylinder body is of a rib plate structure. The strength and the rigidity of the hammer barrel of the pile hammer are effectively enhanced, and the impact resistance of the pile hammer is improved.

In a further embodiment of the present invention, the lower end of the piston rod is fixedly provided with a hinged ball head, the hinged ball head is movably clamped between the lower ball seat and the upper ball seat, and the lower ball seat and the upper ball seat which are fixedly connected with each other are fixedly arranged on the hammer core. The lower ball seat and the upper ball seat are pressed on the hammer core through the ball seat cover plate. Simple and reasonable structure, and convenient installation and maintenance.

Drawings

The barrel type hydraulic pile driving hammer of the invention is further described in detail with reference to the accompanying drawings and the detailed description.

FIG. 1 is a schematic perspective view of one embodiment of a hydraulic barrel piling hammer of the present invention;

FIG. 2 is a schematic cross-sectional structural view of the embodiment of FIG. 1;

FIG. 3 is a schematic perspective view of the hammer barrel of the embodiment of FIG. 1;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is a schematic perspective view of the hydraulic cylinder of the embodiment of FIG. 1;

FIG. 6 is a schematic view of the cross-sectional structure A-A of FIG. 5;

FIG. 7 is a schematic view of the cross-sectional structure B-B of FIG. 5;

FIG. 8 is a schematic cross-sectional view of the cylinder block of the hydraulic cylinder of FIG. 5;

FIG. 9 is a schematic top view of the structure of FIG. 8;

FIG. 10 is an enlarged view of a portion I of the embodiment of FIG. 2;

fig. 11 is a schematic sectional view of a hammer core flange in the embodiment of fig. 1.

In the figure, 1-hammer cylinder, 101-hammer cylinder body, 102-cylinder transverse rib, 103-cylinder vertical rib, 104-cylinder through window, 105-cylinder upper end flange, 106-cylinder lower end flange, 2-hammer core, 3-lifting lug, 4-hydraulic cylinder, 401-piston rod, 402-lower guide sleeve, 403-cylinder, 404-cylinder oil hole, 405-cylinder barrel cavity, 406-swinging frame, 407-swinging frame pin shaft, 408-cylinder swinging seat, 409-cylinder upper end cover, 410-upper guide sleeve, 411-piston, 412-cylinder radial oil hole, 413-cylinder lower end cover, 414-hinged ball head, 415-cylinder swinging shaft, 416-cylinder swinging seat, 417-swinging shaft hole, 418-cylinder connecting hole, 419-ball seat cover plate, 420-upper ball seat, 421-lower ball seat, 422-ball seat lower gasket, 423-ball seat upper ball seat gasket, 5-top cover, 6-bottom oil pipe joint seat, 7-lifting lug, 8-hammer core flange, 801-hammer core flange body, 802-blotter.

Detailed Description

As shown in fig. 1 and 2, a cylinder hydraulic pile hammer has a cylinder-shaped hammer barrel 1, a hammer core 2 capable of reciprocating up and down is slidably supported in a barrel cavity of the hammer barrel 1, the hammer core 2 is a steel casting or steel forging, a hydraulic cylinder 4 is installed at the upper end of the hammer barrel 1, the upper part of the hydraulic cylinder 4 is covered in a top cover 5, the top cover 5 is fixedly installed at the upper end of the hammer barrel 1, an upper lifting lug 3 and a lower lifting lug 7 are fixedly welded at the upper end and the lower end of the hammer barrel 1 respectively, and the lifting lugs are used for lifting installation or transportation of the pile hammer. An oil pipe joint seat 6 is fixedly arranged on the outer cylinder wall of the hammer cylinder 1, and the oil pipe joint seat 6 is used for fixing the oil pipe of the hydraulic cylinder and the oil pipe joint of the hydraulic station. The upper end of the hammer core 2 is hinged with the extending end of a piston rod of the hydraulic cylinder 4, the lower end of the hammer core 2 penetrates through a hammer core flange 8 and can extend out of the flange, and the hammer core flange 8 is fixedly connected with the lower end port of the hammer barrel 1. The ratio T/T of the mass T of the hammer core 2 to the total mass T of the pile driving hammer is controlled to be 50-70%, the total mass T of the pile driving hammer comprises the sum of the masses of the parts as shown in the figure, and a pile cap matched with the pile driving hammer in actual use is not included, so that the structure and the mass of the pile cap are related to the pile type and the material of the pile in actual construction. The total mass T of the pile driving hammer is 32 tons, the mass T of the hammer core 2 is 20 tons, and the ratio T/T of the mass T of the hammer core 2 to the total mass T of the pile driving hammer is 62.5%; the total mass T of the pile hammer can be 200 tons, and the mass T of the hammer core is 105 tons; or the total mass T of the pile driving hammer is 27 tons, and the mass T of the hammer core is 18 tons; and so on.

As shown in fig. 3 and 4, the hammer barrel 1 includes a cylindrical hammer barrel body 101, the hammer barrel body 101 is a carbon steel circular barrel, the barrel body 101 is respectively provided with four barrel through windows 104, the top of the barrel is provided with a top, the upper part of the barrel is provided with a middle and the lower part of the barrel is provided with a through window 104, the barrel through window 104 of the top ring is provided with a through window, the barrel through windows 104 of the upper ring are provided with four through windows on the same circumference, the barrel through window 104 of the lower ring is provided with six through windows corresponding to the part of the hammer core which moves frequently and reciprocally. The hammer barrel comprises a hammer barrel body 101, and is characterized in that a barrel upper end flange 105 is welded at an upper end opening of the hammer barrel body 101, four upper lifting lugs 3 are welded between the barrel upper end flange 105 and the barrel, a barrel lower end flange 106 is welded at a lower end opening of the hammer barrel body 101, a hammer core flange 8 is fixedly connected to the barrel lower end flange 106 through a connecting bolt, and four lower lifting lugs 7 are welded between the barrel lower end flange 106 and the barrel. Four cylinder vertical ribs 103 are uniformly welded on the outer cylinder wall of the hammer cylinder body 101, the cylinder vertical ribs 103 adopt a support rod structure, the cylinder vertical ribs 103 are all arranged along the length direction of the hammer cylinder body 101 and are parallel to the central line of the hammer cylinder body 101, and the cylinder vertical ribs 103 can be tube rods such as round tube rods or square tube rods, and can also be reinforcing rib structures. The cylinder vertical ribs 103 extend from the cylinder upper end flange 105 to the cylinder lower end flange 106, three cylinder transverse ribs 102 are welded between two adjacent cylinder vertical ribs 103, and the cylinder transverse ribs 102 are of arc rib plate structures.

As shown in fig. 5, the hydraulic cylinder 4 includes a cylinder body 403 and a piston rod 401 extending through the cylinder body 403 to two ends of the cylinder body 403, an upper end cover 409 and a lower end cover 413 are fixedly connected to the upper and lower ends of the cylinder body 403, respectively, the upper end cover 409 is in a valve block type structure, and an oil hole for delivering hydraulic oil is provided in a valve body of the upper end cover 409, and the oil hole leads to a cylinder cavity 405 of the cylinder body and/or an oil hole 404 of the cylinder body. A hinged ball 414 is fixedly mounted at the lower extending end of the piston rod 401, and the piston rod 401 is hinged with the pile hammer through the hinged ball 414. A cylinder swing support structure including a swing frame 406 and a cylinder swing seat 408 is provided outside the waist portion of the cylinder 403.

As shown in fig. 6 and 7, the cylinder 403 has a cylindrical structure, a cylinder tube cavity 405 is provided at a center line position of the cylinder 403 to penetrate in the longitudinal direction, a cylinder oil hole 404 is further provided in the cylinder 403, and the cylinder oil hole 404 is parallel to the cylinder tube cavity 405. A piston 411 is arranged in the cylinder cavity 405 in a sliding manner, the piston 411 is fixedly arranged on the piston rod 401, and the piston 411 and the piston rod 401 can adopt an integral structure. The upper end of the cylinder body 403 is fixedly connected with an upper end cover 409 of the cylinder body through a connecting bolt, and the upper end cover 409 of the cylinder body in a valve block type structure is fixedly provided with an upper guide sleeve 410; a lower guide sleeve 402 is fixedly mounted on the lower end of the cylinder 403 through a cylinder lower end cover 413, and the upper guide sleeve 410 and the lower guide sleeve 402 perform sliding guiding and sealing functions on the piston rod 401. Two ends of the piston rod 401 respectively penetrate through the upper guide sleeve 410 and the lower guide sleeve 402 and extend out of the upper end and the lower end of the cylinder body 403, and a hinged ball 414 is fixedly mounted at the end part of the lower extending end of the piston rod 401.

A cylinder swing supporting structure is arranged at the outer side of the waist of the cylinder 403, the cylinder swing supporting structure comprises a cylinder swing shaft 415 and a swing frame pin shaft 47, the cylinder swing shaft 415 is two short shafts symmetrically positioned at two sides of the cylinder 403, similarly, the swing frame pin shaft 407 is also two short shafts symmetrically positioned at two sides of the cylinder 403, and the cylinder swing shaft 415 and the swing frame pin shaft 407 are positioned on two planes which are perpendicular to each other. The cylinder 403 is movably supported on the swing frame 406 through a cylinder swing shaft 415, one end of the cylinder swing shaft 415 is inserted into a swing shaft hole 417 of the cylinder 403, and the other end is inserted into the swing frame 406, so that the cylinder 403 can swing around the cylinder swing shaft 415. The swing frame 406 is movably supported on the cylinder swing seat 408 through a swing frame pin shaft 407, one end of the swing frame pin shaft 407 is inserted into the swing frame 406, and the other end of the swing frame pin shaft 407 is supported on the cylinder swing seat 408, so that the swing frame 406 can swing around the swing frame pin shaft 407.

As shown in fig. 8 and 9, the cylinder body 403 is a one-piece forged piece, the upper end of the cylinder body is provided with an end cover connecting flange, the connecting flange is provided with a plurality of cylinder cover connecting holes 418, the outer side of the waist of the cylinder body 403 is provided with a swing shaft hole convex ring, and two swing shaft holes 417 symmetrically positioned at two sides of the cylinder body are arranged on the swing shaft hole convex ring. A cylinder bore 405 penetrating vertically is provided at a center line position of the cylinder 403, 8 cylinder oil holes 404 are further provided in the cylinder 403, and a circle where the cylinder oil holes 404 are located is concentric with the cylinder bore 405. The cylinder block oil hole 404 is parallel to the cylinder block cylindrical cavity 405, the upper end of the cylinder block oil hole 404 is an open end, the lower end of the cylinder block oil hole 404 is communicated with the cylinder block cylindrical cavity 405 through the corresponding cylinder block radial oil hole 412, and hydraulic oil can enter the lower cylinder cavity of the cylinder block cylindrical cavity 405 through the cylinder block oil hole 404 and the cylinder block radial oil hole 412 during operation.

As shown in fig. 10, a hinge ball 414 is fixedly installed at the lower end of the piston rod 401 through an end plate, the hinge ball 414 is swingably clamped between a lower ball seat 421 and an upper ball seat 420, and the lower ball seat 421 and the upper ball seat 420, which are fixedly connected to each other by a connection bolt, are fixedly pressed in the installation recess of the pair of hammer cores 2 through a ball seat cover plate 419. A ball seat upper gasket 423 is arranged between the upper ball seat 420 and the ball seat cover plate 419, a ball seat lower gasket 422 is arranged between the bottom of the lower ball seat 421 and the hammer core 2, and the ball seat upper gasket 423 and the ball seat lower gasket 422 are made of corresponding materials such as nylon and rubber plates and have the functions of buffering and protecting a ball hinge structure.

As shown in fig. 11, the hammer core flange 8 includes a hammer core flange body 801 and a cushion 802, the hammer core flange body 801 has an annular flange structure, and the annular cushion 802 is fitted to the bottom surface of the hammer core flange body 801.

Claims (10)

1. The utility model provides a cylinder hydraulic pile hammer, includes hammer barrel (1), hammer core (2) and pneumatic cylinder (4), its characterized in that: the hammer barrel (1) comprises a hammer barrel body (101), a plurality of barrel through windows (104) are arranged on the hammer barrel body (101), and barrel vertical ribs (103) are fixedly arranged on the outer barrel surface of the hammer barrel body (101); the hydraulic cylinder (4) comprises a cylinder body (403) and a piston (411) fixedly arranged on a piston rod (401), the piston (411) is arranged in a cylinder body cylindrical cavity (405) of the cylinder body (403) in a sliding mode, a plurality of cylinder body oil holes (404) are further formed in the cylinder body (403), the cylinder body oil holes (404) are parallel to the cylinder body cylindrical cavity (405) and are arranged around the cylinder body cylindrical cavity (405), the lower end of each cylinder body oil hole (404) is communicated with the cylinder body cylindrical cavity (405), and the lower end of the piston rod (401) is hinged to the hammer core (2); the cylinder body (403) is supported at the upper end of the hammer barrel (1) through a cylinder body swinging support structure.

2. The hydraulic driver hammer of claim 1, further comprising: the cylinder body swinging support structure comprises a cylinder body swinging shaft (415) and a swinging frame pin shaft (407), the cylinder body (403) is movably supported on a swinging frame (406) through the cylinder body swinging shaft (415), the swinging frame (406) is movably supported on a cylinder body swinging seat (408) through the swinging frame pin shaft (407), and the cylinder body swinging seat (408) is fixedly arranged at the upper end of the hammer barrel body (101).

3. The hydraulic driver hammer of claim 2, wherein: the upper end of the hammer barrel body (101) is fixedly provided with a barrel upper end flange (105), and the cylinder body swing seat (408) is fixedly arranged on the barrel upper end flange (105); the lower end of the hammer barrel body (101) is fixedly provided with a barrel lower end flange (106), and the hammer core flange (8) is fixedly connected to the barrel lower end flange (106).

4. A hydraulic driver hammer of the barrel type according to claim 3, wherein: the cylinder body swing shaft (415) and the swing frame pin shaft (407) are perpendicular to each other; and a buffer pad (802) is embedded on the lower end face of the hammer core flange (8).

5. The hydraulic driver hammer of claim 1, further comprising: the ratio T/T of the mass T of the hammer core (2) to the total mass T of the pile driving hammer is =60% -80%.

6. The hydraulic driver hammer of claim 1, further comprising: the hammer barrel body (101) is at least provided with a circle of barrel through windows (104), and each circle of barrel through windows (104) is provided with at least one through window.

7. The hydraulic driver hammer of claim 1, further comprising: the hammer barrel comprises a hammer barrel body (101), wherein at least two barrel vertical ribs (103) are arranged on the outer barrel surface of the hammer barrel body (101), and each barrel vertical rib (103) extends from the upper end to the lower end of the hammer barrel body (101); at least two cylinder transverse ribs (102) are fixedly arranged between the adjacent cylinder vertical ribs (103).

8. The hydraulic driver hammer of claim 7, wherein: the cylinder vertical rib (103) adopts a rod type structure or a ribbed plate structure; the barrel horizontal rib (102) is of a rib plate structure.

9. The hydraulic driver hammer of claim 1, further comprising: the lower end of the piston rod (401) is fixedly provided with a hinged ball head (414), the hinged ball head (414) is movably clamped between a lower ball seat (421) and an upper ball seat (420), and the lower ball seat (421) and the upper ball seat (420) which are fixedly connected with each other are fixedly arranged on the hammer core (2).

10. The hydraulic driver hammer of claim 9, wherein: the lower ball seat (421) and the upper ball seat (420) are pressed on the hammer core (2) through a ball seat cover plate (419).

Images