Resonance-free hydraulic vibration hammer

Abstract

The present application belongs to the technical field of engineering machinery, and discloses a resonance-free hydraulic vibration hammer, which comprises a damping frame, a resonance-free vibration gear box, a cross beam and a pile clamping device. The cross beam is installed below the damping frame through the resonance-free vibration gear box. The pile clamping device comprises two pile clamping oil cylinders and two clamps, and the two clamps are installed below the cross beam through the two pile clamping oil cylinders. The resonance-free vibration gear box comprises a box body, a gear phase converter, an eccentric gear set, a transition gear, a first driving assembly and a second driving assembly. Through scientific structural design, the gear phase converter is arranged in the vibration gear box. When starting and stopping, the relative positions between the eccentric blocks of the two pairs of gears are adjusted through the gear phase converter, so that the vertical and horizontal exciting forces generated by the eccentric blocks of the gears are offset. The resonance-free hydraulic vibration hammer adjusts the eccentric torque during starting or stopping of the hydraulic vibration hammer, and eliminates the resonance phenomenon of the vibration hammer during starting or stopping.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a resonance-free hydraulic vibration hammer. BACKGROUND

[0002] The hydraulic vibration hammer is one of the important equipment in pile foundation construction. It can produce vibration by high-speed rotation of eccentric blocks in the vibration gear box, can "liquefy" the soil around the pile body, reduce the pile-soil resistance, and quickly achieve the purpose of pile sinking. Compared with other pile construction machinery, the vibration hammer has the functions of pile sinking and pile pulling.

[0003] This vibration hammer relies on a pair of eccentric mass blocks to produce vertical excitation force. When starting and stopping, the resonance phenomenon of the equipment will occur, especially in urban areas, which will cause excessive vibration to adjacent buildings, thus limiting the use of this vibration hammer in urban areas.

[0004] Prior art, application number CN201710259597.5, a kind of hydraulic vibration hammer, it includes damping device, vibration device and clamping device, the vibration device includes excitation box, with excitation box linkage top plate, erect on top plate damping frame, uniformly distributed on damping frame damping rubber, with damping frame connection vibration absorption cover, set between damping frame and vibration absorption cover safety mechanism, secondary damping frame and set on secondary damping frame damping rubber, excitation box is equipped with the eccentric wheel with the cross section being semicircular, gear and main shaft are linked with eccentric wheel, eccentric wheel and gear are correspondingly provided with mounting hole for main shaft installation on surface, motor connector is arranged between top plate and excitation box, the eccentric wheel and gear are integrally forged and processed, bearing is sleeved on main shaft, shaft sleeve is sleeved between bearing and main shaft, main shaft is linked with eccentric wheel and gear;The top plate is a mounting plate, and the other end of the mounting plate relative to the end connected with the damping frame is provided with a lower top plate which is detachably connected with the mounting plate and is parallel to the mounting plate. The excitation box of the vibration hammer is provided with a pair of eccentric wheels. The vibration hammer relies on a pair of eccentric wheels to produce vertical excitation force. The horizontal centrifugal force generated by the pair of eccentric wheels is offset, and the vertical centrifugal force is superimposed, thereby generating superimposed vertical excitation force. The eccentric moment of the eccentric wheel of the vibration hammer is not adjustable. When the vibration hammer starts and stops, the resonance phenomenon of the equipment will occur, which will seriously affect the equipment itself. At the same time, the large amplitude of resonance and noise will have a very great impact on the surrounding environment.

[0005] The prior art, application number CN201811145587.X, a kind of vibration pile hammer based on variable stiffness plays the role of free resonance and pile driving method, it includes mass block, stiffness adjusting device, excitation hammer, first spiral spring;The stiffness adjusting device includes magnetostrictive variable stiffness block, wire, rectifier circuit and power supply, wire is wound outside magnetostrictive variable stiffness block, power supply, rectifier circuit and wire are sequentially connected;When the current in the wire changes, the magnetic field intensity that the magnetostrictive variable stiffness block receives changes, and at this time the equivalent stiffness of the magnetostrictive variable stiffness block also changes;The mass block, magnetostrictive variable stiffness block, excitation hammer, first spiral spring are sequentially connected from top to bottom;The magnetostrictive variable stiffness block is equipped with magnetostrictive variable stiffness block failure monitoring device, the magnetostrictive variable stiffness block failure monitoring device includes semiconductor plate, monitoring power supply, voltmeter, the semiconductor plate is horizontally placed and its upper surface is connected with the lower surface of magnetostrictive variable stiffness block, the semiconductor plate is clamped between the magnetostrictive variable stiffness block and the excitation hammer, the voltmeter is connected with the upper surface and lower surface of semiconductor plate and monitors the voltage of the upper surface and lower surface of semiconductor plate, the monitoring power supply is connected with two different points on the side surface of semiconductor plate;The magnetostrictive variable stiffness block is equipped with heat dissipation device, the mass block has a vertical through hole, the magnetostrictive variable stiffness block has a vertical through hole, the heat dissipation device includes sequentially connected cooling liquid tank, water pump and radiator pipe, one end of the radiator pipe is connected with the cooling liquid in the cooling liquid tank and the other end is connected with the water pump, the radiator pipe is pasted on the side wall of the through hole of the magnetostrictive variable stiffness block after passing through the through hole of the mass block to dissipate heat;The water pump drives the cooling liquid in the cooling liquid tank to flow into the radiator pipe and then back to the cooling liquid tank. The free resonance vibration pile hammer changes the stiffness of the elastic body by setting the elastic body first spiral spring between the excitation hammer and the clamp and by the magnetostrictive variable stiffness block, to realize the adjustment of the vertical excitation force of the vibration pile hammer to the clamp, but it still cannot change the resonance phenomenon of the vibration pile hammer during startup and shutdown, it only reduces the size of the vertical excitation force of the vibration pile hammer to the clamp, and also increases the energy output of the magnetic change, the eccentric moment of the eccentric mass block of the free resonance vibration pile hammer is still not adjustable, the resonance phenomenon of the equipment still occurs during startup and shutdown of the vibration pile hammer, which also causes serious impact on the equipment itself, leading to increased equipment failure rate and reduced service life, and the large amplitude and noise generated during resonance also have a relatively adverse impact on the surrounding environment (affecting the health of workers and surrounding residents), which is not conducive to the smooth progress of construction work.

[0006] Therefore, it is urgent to develop a free resonance hydraulic vibration hammer that can adjust the eccentric moment during startup or shutdown to eliminate the resonance phenomenon of the free resonance hydraulic vibration hammer during startup or shutdown. SUMMARY

[0007] The present application aims at the above-mentioned deficiencies, and provides a resonance-free hydraulic vibration hammer, which is equipped with a gear phase transformer in a vibration gear box through scientific structure design and cooperation of each part.

[0008] The technical scheme is as follows:

[0009] A resonance-free hydraulic vibration hammer, comprising a damping frame, a resonance-free vibration gear box, a cross beam and a pile clamping device, the cross beam is installed below the damping frame through the resonance-free vibration gear box, the pile clamping device comprises two pile clamping oil cylinders and two clamps, the two clamps are installed below the cross beam through the two pile clamping oil cylinders; the resonance-free vibration gear box comprises a box body, a gear phase transformer, an eccentric gear set, a transition gear, a first drive assembly and a second drive assembly, the first drive assembly and the second drive assembly are installed at two ends of the box body respectively, the eccentric gear set is installed in the middle of the box body, the transition gear assembly is installed between the first drive assembly and the eccentric gear set, and the gear phase transformer is installed between the second drive assembly and the eccentric gear set; the gear phase transformer comprises a first phase transformation gear and a second phase transformation gear, the eccentric gear set comprises two pairs of gear eccentric blocks, the two pairs of gear eccentric blocks are four gear eccentric blocks, the four gear eccentric blocks respectively have a first eccentric gear, a second eccentric gear, a third eccentric gear and a fourth eccentric gear, the first drive assembly and the second drive assembly respectively have a first drive gear and a second drive gear, and the first drive gear, the transition gear, the first eccentric gear, the second eccentric gear and the first phase transformation gear are sequentially connected in meshing, and the second drive gear, the second phase transformation gear, the third eccentric gear and the fourth eccentric gear are sequentially connected in meshing.

[0010] The gear phase converter further comprises a phase conversion main shaft, a first gear shaft sleeve, a second gear shaft sleeve, a first gear bearing, a second gear bearing, a first bearing seat, a second bearing seat, a first single-acting hydraulic cylinder, a second single-acting hydraulic cylinder, two phase conversion pin sleeve assemblies, the phase conversion main shaft is hollow and cylindrical, the phase conversion main shaft comprises a left half and a right half, a right-handed first spiral strip-shaped hole and a second spiral strip-shaped hole are arranged on the left half of the phase conversion main shaft, a left-handed third spiral strip-shaped hole and a fourth spiral strip-shaped hole are arranged on the right half of the phase conversion main shaft, the phase angles of the first spiral strip-shaped hole, the second spiral strip-shaped hole, the third spiral strip-shaped hole and the fourth spiral strip-shaped hole are 90° respectively, and they are sequentially staggered by 90°.

[0011] Further comprising a first locking nut, a second locking nut, a third locking nut, a fourth locking nut, a first limiting plate, a second limiting plate, the first limiting plate separates the outer side of the first gear shaft sleeve into a first bearing mounting section and a first gear mounting shaft section, the first phase conversion gear is mounted on the first gear mounting shaft section through the first locking nut, and the first gear bearing is mounted on the first bearing mounting section through the second locking nut; the second limiting plate separates the outer side of the second gear shaft sleeve into a second bearing mounting section and a second gear mounting shaft section, the second phase conversion gear is mounted on the second gear mounting shaft section through the third locking nut, and the second gear bearing is mounted on the second bearing mounting section through the fourth locking nut.

[0012] Further comprising a plurality of first pins, a plurality of second pins, the first phase conversion gear, the first limiting plate are respectively provided with a plurality of first pin holes matched with the first pins and second pin holes, the first pins are respectively pinned into the first pin holes and the second pin holes; the second phase conversion gear, the second limiting plate are respectively provided with a plurality of third pin holes matched with the second pins and fourth pin holes, the second pins are pinned into the third pin holes and the fourth pin holes.

[0013] Further comprising a first wear-resistant sleeve and a second wear-resistant sleeve, a first wear-resistant groove is arranged on the inner side wall of the first gear shaft sleeve, the first wear-resistant sleeve is installed in the first wear-resistant groove, the left end of the phase conversion main shaft passes through the first wear-resistant sleeve of the inner ring of the first gear shaft sleeve and cooperates with the first push shaft of the first single-acting hydraulic oil cylinder; a second wear-resistant groove is arranged on the inner side wall of the second gear shaft sleeve, the second wear-resistant sleeve is installed in the second wear-resistant groove, the right end of the phase conversion main shaft passes through the second wear-resistant sleeve of the inner ring of the second gear shaft sleeve and cooperates with the second push shaft of the second single-acting hydraulic oil cylinder.

[0014] The gear eccentric blocks comprise eccentric blocks and gears, the eccentric blocks are integrally connected with the gears, the gears of the four gear eccentric blocks are respectively the first eccentric gear, the second eccentric gear, the third eccentric gear and the fourth eccentric gear; the first drive assembly further has a first drive motor, the first drive motor is drivingly connected with the first drive gear, the second drive assembly further has a second drive motor, the second drive motor is drivingly connected with the second drive gear.

[0015] The first single-acting hydraulic oil cylinder comprises a first oil cylinder barrel, a first piston and a first support bearing, the first push shaft is installed in the first piston through the first support bearing and is installed in the first oil cylinder barrel through the first piston, the first oil cylinder barrel is fixed on the first bearing seat through screws; the second single-acting hydraulic oil cylinder comprises a second oil cylinder barrel, a second piston and a second support bearing, the second push shaft is installed in the second piston through the second support bearing and is installed in the second oil cylinder barrel through the second piston, the second oil cylinder barrel is fixed on the second bearing seat through screws.

[0016] It also includes a first rotary docking shaft and a second rotary docking shaft, which are respectively installed on the left and right ends of the phase transformation main shaft. The end face of the first rotary docking shaft is provided with two first rotary keys, the end face of the second rotary docking shaft is provided with two second rotary keys, the end face of the first push shaft is provided with two third rotary keys, and the end face of the second push shaft is provided with two fourth rotary keys. The left end of the phase transformation main shaft cooperates with the two third rotary keys of the first rotary docking shaft through the two first rotary keys; the right end of the phase transformation main shaft cooperates with the two fourth rotary keys of the second push shaft through the two second rotary keys of the second rotary docking shaft.

[0017] It also includes a first sealing ring, a first wear-resistant ring, a second sealing ring, and a second wear-resistant ring. The outer side surface of the first piston is provided with a first sealing groove and a second sealing groove. The first sealing ring and the first wear-resistant ring are respectively installed on the first sealing groove and the second sealing groove. The first piston is sealed to the inner side wall of the first cylinder body through the first sealing ring and the first wear-resistant ring. The outer side surface of the second piston is provided with a third sealing groove and a fourth sealing groove. The second sealing ring and the second wear-resistant ring are respectively installed on the third sealing groove and the fourth sealing groove. The second piston is sealed to the inner side wall of the second cylinder body through the second sealing ring and the second wear-resistant ring.

[0018] The phase transformation pin assembly includes a pin, a first guide wear-resistant sleeve, a second guide wear-resistant sleeve, an intermediate support sleeve, a third guide wear-resistant sleeve, and a fourth guide wear-resistant sleeve. The first guide wear-resistant sleeve, the second guide wear-resistant sleeve, the intermediate support sleeve, the third guide wear-resistant sleeve, and the fourth guide wear-resistant sleeve are sequentially fitted onto the outer surface of the pin and are rotatably and slidably connected to the pin.

[0019] It should be noted that:

[0020] The aforementioned "first, second..." does not represent a specific quantity or order, but is merely used to distinguish the names.

[0021] In the description of this invention, it should be understood that the terms "left," "right," etc., indicate the orientation or positional relationship based on the accompanying drawings. Figure 6 The orientations or positional relationships shown are either the orientations or positional relationships that are commonly used when the product of this invention is in use, or the orientations or positional relationships that are commonly understood by those skilled in the art. They are only for the purpose of facilitating the description of this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] The direction indicated by the aforementioned "inner" refers to the direction of rotation towards the central axis of this gear phase converter.

[0023] The direction indicated by the aforementioned "out" refers to the direction away from the rotation axis of the gear phase converter.

[0024] The advantages or principles of the present application are described as follows:

[0025] 1. The resonance-free hydraulic vibration hammer provided by the present application comprises a damping frame, a resonance-free vibration gear box, a cross beam, and a pile clamping device. The resonance-free vibration gear box comprises a box body, a gear phase converter, an eccentric gear set, a transition gear, a first driving assembly, and a second driving assembly. The eccentric gear set comprises a first eccentric gear, a second eccentric gear, a third eccentric gear, and a fourth eccentric gear. Through scientific structural design, a gear phase converter is added in the vibration gear box. The phase conversion main shaft of the driving gear phase converter is axially moved, so that the first phase conversion gear rotates 180° clockwise relative to the second phase conversion gear, i.e., the second eccentric gear meshing with the first phase conversion gear rotates 180° counterclockwise relative to the third eccentric gear meshing with the second phase conversion gear, i.e., the centrifugal force of the second eccentric gear and the centrifugal force of the third eccentric gear are offset, and the first eccentric gear meshing with the second eccentric gear rotates 180° clockwise relative to the fourth eccentric gear meshing with the third eccentric gear, i.e., the centrifugal force of the first eccentric gear and the centrifugal force of the fourth eccentric gear are offset, so as to realize the adjustment of the eccentric moment. That is, if the equipment is started or stopped, the driving gear phase converter is axially moved to the full stroke, the vertical and horizontal exciting forces generated by the eccentric mass blocks of the eccentric gear set in the vibration gear box are offset, and the resonance phenomenon of the vibration gear box during the starting or stopping process is eliminated. The resonance-free hydraulic vibration hammer can adjust the relative positions between the eccentric blocks of the gears through the gear phase converter in the vibration gear box, can adjust the eccentric moment during the starting or stopping process, so that the vertical and horizontal exciting forces generated by the eccentric blocks of the gears are offset, the resonance phenomenon of the vibration hammer during the starting or stopping process is eliminated, the equipment failure rate is reduced, the equipment life is prolonged, and the adverse effects on the surrounding environment during operation are reduced.

[0026] 2、The gear phase converter further comprises a phase conversion main shaft, a first gear shaft sleeve, a second gear shaft sleeve, a first gear bearing, a second gear bearing, a first bearing seat, a second bearing seat, a first single-acting hydraulic oil cylinder, a second single-acting hydraulic oil cylinder and two phase conversion pin sleeve assemblies. The first phase conversion gear and the first gear shaft sleeve form an integral whole, and are connected with the right-hand first spiral strip-shaped hole and the second spiral strip-shaped hole of the phase conversion main shaft through the phase conversion pin sleeve assemblies, and when the first phase conversion gear rotates, the phase conversion main shaft is driven to rotate through the phase conversion pin sleeve assemblies. Similarly, the second phase conversion gear and the second gear shaft sleeve form an integral whole, and are connected with the left-hand third spiral strip-shaped hole and the fourth spiral strip-shaped hole of the phase conversion main shaft through the phase conversion pin sleeve assemblies, and when the second phase conversion gear rotates, the phase conversion main shaft is driven to rotate through the phase conversion pin sleeve assemblies. In use, the first single-acting hydraulic oil cylinder drives the first push shaft to move axially to the right, and drives the phase conversion main shaft to move axially to the right through the first push shaft, and at the same time, the first phase conversion gear rotates clockwise along the first spiral strip-shaped hole and the second spiral strip-shaped hole through the phase conversion pin sleeve assemblies, and when the first push shaft moves to the right to the full stroke, the first phase conversion gear rotates clockwise by 90°. The second phase conversion gear rotates counterclockwise along the third spiral strip-shaped hole and the fourth spiral strip-shaped hole through the phase conversion pin sleeve assemblies, and when the first push shaft moves to the right to the full stroke, the second phase conversion gear rotates counterclockwise by 90°. Through transmission chain analysis, the clockwise rotation of the first phase conversion gear causes the first drive gear to rotate clockwise, which is the same as the original rotation direction, while the counterclockwise rotation of the second phase conversion gear causes the second drive gear to rotate clockwise, which is opposite to the original rotation direction. Since the motor cannot rotate reversely in the normal rotation process, the second phase conversion gear can be used as a fixed reference, and then the first phase conversion gear rotates clockwise by 180° relative to the second phase conversion gear, that is, the first drive gear rotates clockwise at an increased speed.Since the vibration gear box is to generate vertical exciting force by rotating the pair of eccentric wheels, the horizontal centrifugal force generated by the pair of eccentric wheels is offset each other, the vertical centrifugal force is superimposed each other, thereby generating superimposed vertical exciting force, for example, the second eccentric gear, the third eccentric gear which the two centrifugal forces are superimposed each other in the vertical direction are engaged with the first phase conversion gear, the second phase conversion gear respectively, when the first push shaft moves to the full stroke to the right, the first phase conversion gear rotates 180° clockwise relative to the second phase conversion gear, that is, the second eccentric gear engaged with the first phase conversion gear rotates 180° counterclockwise relative to the third eccentric gear engaged with the second phase conversion gear, that is, the centrifugal force of the second eccentric gear and the centrifugal force of the third eccentric gear offset each other, while the first eccentric gear engaged with the second eccentric gear rotates 180° clockwise relative to the fourth eccentric gear engaged with the third eccentric gear, that is, the centrifugal force of the first eccentric gear and the centrifugal force of the fourth eccentric gear offset each other, to realize the adjustment of the eccentric force moment; that is, the vibration gear box installed with the gear phase converter, if the equipment is started or stopped, when the first push shaft of the first single-acting hydraulic oil cylinder moves to the full stroke to the right, the vertical and horizontal exciting force generated by the eccentric mass block of the eccentric wheel in the vibration gear box is offset each other, thereby eliminating the resonance phenomenon of the vibration gear box in the process of starting or stopping.

[0027] Similarly, the second single-acting hydraulic cylinder pushes the second push shaft to move leftward in the axial direction, and the second push shaft pushes the phase conversion main shaft to move leftward in the axial direction, while the second phase conversion gear rotates clockwise along the third helical strip-shaped hole and the fourth helical strip-shaped hole through the phase conversion pin sleeve assembly, and when the second push shaft moves rightward to the full stroke, the second phase conversion gear rotates 90° clockwise; the first phase conversion gear rotates counterclockwise along the first helical strip-shaped hole and the second helical strip-shaped hole through the phase conversion pin sleeve assembly, and when the second push shaft moves leftward to the full stroke, the first phase conversion gear rotates 90° counterclockwise; through the transmission chain analysis, the clockwise rotation of the second phase conversion gear causes the second drive gear to rotate counterclockwise, which is the same as the original rotation direction, while the counterclockwise rotation of the first phase conversion gear causes the first drive gear to rotate counterclockwise, which is opposite to the original rotation direction, so the first phase conversion gear can be taken as a fixed reference, and then the second phase conversion gear rotates 180° clockwise relative to the first phase conversion gear, that is, the second drive gear rotates counterclockwise at an increased speed. When the first push shaft moves leftward to the full stroke, the third eccentric gear engaged with the second phase conversion gear rotates 180° counterclockwise relative to the second eccentric gear engaged with the first phase conversion gear, realizing the adjustment of the eccentric moment again; when the eccentric mass block of the eccentric wheel in the vibration gear box reaches a stable working frequency, the second push shaft of the second single-acting hydraulic cylinder moves leftward to the full stroke, the horizontal exciting force of the eccentric mass block of the eccentric wheel in the vibration gear box cancels out, and the vertical exciting force superimposes, and the vibration generated is the largest (maximum amplitude), when the eccentric mass block of the eccentric wheel in the vibration gear box reaches the maximum frequency, the relative position of the eccentric mass block is adjusted (0° < adjustment angle < 180°), so that the vibration (0 < amplitude < maximum amplitude) is generated, thereby driving the pile to vibrate and sink into the foundation. The relative position between the eccentric blocks of the gears in the vibration gear box can be adjusted through the gear phase converter in the vibration gear box, so as to adjust the eccentric moment of the eccentric block of the gear, so that the vertical and horizontal exciting forces generated by the eccentric block of the gear in the vibration gear box cancel out when starting or stopping, thereby eliminating the resonance phenomenon of the vibration gear box during starting or stopping and the influence on the surrounding environment; when the amplitude of the vibration gear box needs to be adjusted, the stroke of the single-acting hydraulic cylinder in the gear phase converter can be adjusted to adjust the relative position of the eccentric mass block in the vibration gear box, so that the required amplitude is generated, and the vertical exciting force of the vibration gear box is adjusted.

[0028] 3、The first locking nut, the second locking nut, the third locking nut, the fourth locking nut are additionally arranged at the left end of the first bearing mounting section of the first gear shaft sleeve and the right end of the first gear mounting shaft section, and outer connecting threads are additionally arranged at the left end of the first bearing mounting section of the first gear shaft sleeve and the right end of the first gear mounting shaft section, and the first gear bearing and the first phase conversion gear are mounted on the first gear shaft sleeve through the second locking nut and the first locking nut respectively, so that the stability of the mounting of the first gear bearing and the first phase conversion gear is improved.

[0029] 4、The first limiting plate, the second limiting plate, the first pin and the second pin are additionally arranged, and the first phase conversion gear and the second phase conversion gear are pinned on the first limiting plate and the second limiting plate through the first pin and the second pin, so that the limiting stability of the first phase conversion gear and the second phase conversion gear is improved.

[0030] 5、The first wear-resistant sleeve and the second wear-resistant sleeve are additionally arranged, so that the wear resistance of the inner walls of the first gear shaft sleeve and the second gear shaft sleeve and the phase conversion main shaft is improved.

[0031] 6、The eccentric gear set comprises two pairs of gear eccentric blocks, the eccentric block and the gear of the gear eccentric block are integrally connected, the integrally connected gear eccentric block does not have the problem of screw loosening of the split gear eccentric block in use, and the reliability and service life of the vibrating gear box are improved.

[0032] 7、The first single-acting hydraulic oil cylinder comprises a first oil cylinder barrel, a first piston and a first supporting bearing, and the first push shaft is installed in the first piston through the first supporting bearing, so that the rotation of the first push shaft in the first piston is smoother, and the second single-acting hydraulic oil cylinder comprises a second oil cylinder barrel, a second piston and a second supporting bearing, and the second push shaft is installed in the second piston through the second supporting bearing, so that the rotation of the second push shaft in the second piston is smoother.

[0033] 8、The first rotating butt joint shaft and the second rotating butt joint shaft are additionally arranged, and rotating keys are arranged on the end faces of the rotating butt joint shaft and the push shaft, so that the pushing of the push shaft is more stable.

[0034] 9、The first sealing ring, the first wear-resistant ring, the second sealing ring and the second wear-resistant ring are additionally arranged on the outer side face of the piston, so that the sealing property of the piston and the oil cylinder barrel is improved.

[0035] 10. The phase conversion pin sleeve assembly of the present application comprises a pin shaft, a first guide wear sleeve, a second guide wear sleeve, an intermediate support sleeve, a third guide wear sleeve, and a fourth guide wear sleeve, wherein the four guide wear sleeves are respectively arranged on the spiral strip-shaped hole and the phase conversion pin hole, so as to improve the wear resistance of the phase conversion pin sleeve assembly, and the intermediate support sleeve and the guide wear sleeve are further provided with a lubricating oil groove, so that the gear oil can enter the guide wear sleeve and the pin shaft for lubrication, and the rotation of the guide wear sleeve and the pin shaft is more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a three-dimensional structural schematic diagram of the resonance-free hydraulic vibration hammer of the embodiment of the present application.

[0037] Figure 2 is a three-dimensional structural schematic diagram of the resonance-free vibration gear box of the embodiment of the present application.

[0038] Figure 3 is a three-dimensional sectional structural schematic diagram of the resonance-free vibration gear box of the embodiment of the present application.

[0039] Figure 4 is a three-dimensional structural schematic diagram of the resonance-free vibration gear box of the embodiment of the present application.

[0040] Figure 5 is a three-dimensional structural schematic diagram of the gear phase converter of the embodiment of the present application.

[0041] Figure 6 is a three-dimensional sectional structural schematic diagram of the gear phase converter of the embodiment of the present application.

[0042] Figure 7 is an exploded structural schematic diagram of the gear phase converter of the embodiment of the present application.

[0043] Figure 8 is a three-dimensional structural schematic diagram of the phase conversion main shaft of the embodiment of the present application.

[0044] Figure 9 is a top view structural schematic diagram of the phase conversion main shaft of the embodiment of the present application.

[0045] Figure 10 is an A-A sectional structural schematic diagram of Figure 9 .

[0046] Figure 11 is a B-B sectional structural schematic diagram of Figure 9 .

[0047] Figure 12 is a bottom view structural schematic diagram of the phase conversion main shaft of the embodiment of the present application.

[0048] Figure 13It is the three-dimensional structure schematic diagram of the first gear shaft sleeve of the embodiment of the application.

[0049] Figure 14 It is the three-dimensional structure schematic diagram of the second gear shaft sleeve of the embodiment of the application.

[0050] Figure 15 It is the three-dimensional structure schematic diagram of the second gear shaft sleeve of the embodiment of the application.

[0051] Figure 16 It is the three-dimensional structure schematic diagram of the second gear shaft sleeve of the embodiment of the application.

[0052] Figure 17 It is the three-dimensional structure schematic diagram of the first phase conversion gear of the embodiment of the application.

[0053] Figure 18 It is the three-dimensional structure schematic diagram of the second phase conversion gear of the embodiment of the application.

[0054] Figure 19 It is the three-dimensional structure schematic diagram of the first rotating butt joint shaft of the embodiment of the application.

[0055] Figure 20 It is the three-dimensional structure schematic diagram of the second rotating butt joint shaft of the embodiment of the application.

[0056] Figure 21 It is the three-dimensional structure schematic diagram of the first push shaft of the embodiment of the application.

[0057] Figure 22 It is the three-dimensional structure schematic diagram of the second push shaft of the embodiment of the application.

[0058] Figure 23 It is the three-dimensional structure schematic diagram of the phase conversion pin sleeve assembly of the embodiment of the application.

[0059] Figure 24 It is the eccentric mass block non-resonance state structure schematic diagram of the eccentric wheel of the embodiment of the application.

[0060] Figure 25 It is the eccentric mass block adjustable eccentric moment state structure schematic diagram of the eccentric wheel of the embodiment of the application.

[0061] Figure 26 It is the eccentric mass block maximum eccentric moment state structure schematic diagram of the eccentric wheel of the embodiment of the application.

[0062] Figure 27 It is the gear eccentric block conversion motion state structure diagram when the first push shaft moves to the full stroke to the right.

[0063] Figure 28 It is the gear eccentric block conversion motion state structure diagram when the second push shaft moves to the full stroke to the left.

[0064] BRIEF DESCRIPTION OF DRAWINGS

[0065] 10, gear phase converter, 11, phase conversion main shaft, 111, first spiral strip hole, 112, second spiral strip hole, 113, third spiral strip hole, 114, fourth spiral strip hole, 12, first rotating butt joint shaft, 121, first rotating key, 13, second rotating butt joint shaft, 131, second rotating key, 20, first gear shaft sleeve, 21, first phase conversion pin hole, 22, second phase conversion pin hole, 23, first locking nut, 24, second locking nut, 25, first limiting plate, 251, second pin hole, 26, first bearing mounting section, 261, first wear-resistant groove, 27, first gear mounting shaft section, 28, first pin, 29, first wear-resistant sleeve, 30, second gear shaft sleeve, 31, third phase conversion pin hole, 32, fourth phase conversion pin hole, 33, third locking nut, 34, fourth locking nut, 35, second limiting plate, 351, fourth pin hole, 36, second bearing mounting section, 361, second wear-resistant groove, 37, second gear mounting shaft section, 38, second pin, 39, second wear-resistant sleeve, 41, first gear bearing, 42, second gear bearing, 43, first bearing seat, 44, second bearing seat, 45, first phase conversion gear, 451, first pin hole, 46, second phase conversion gear, 461, third pin hole, 50, first single-acting hydraulic oil cylinder, 51, first push shaft, 511, third rotating key, 52, first oil cylinder barrel, 53, first piston, 531, first sealing ring, 532, first wear-resistant ring, 54, first supporting bearing, 60, second single-acting hydraulic oil cylinder, 61, second push shaft, 611, fourth rotating key, 62, second oil cylinder barrel, 63, second piston, 631, second sealing ring, 632, second wear-resistant ring, 64, second supporting bearing, 70, phase conversion pin sleeve assembly, 71, pin shaft, 72, first guide wear-resistant sleeve, 73, second guide wear-resistant sleeve, 74, intermediate supporting sleeve, 75, third guide wear-resistant sleeve, 76, fourth guide wear-resistant sleeve, 81, box body, 82, eccentric gear set, 821, first eccentric gear, 822, second eccentric gear, 823, third eccentric gear, 824, fourth eccentric gear, 83, transition gear, 84, first drive assembly, 841, first drive gear, 85, second drive assembly, 851, second drive gear, 91, resonance-free vibration gear box, 92, damping frame, 93, cross beam, 94, pile clamping device, 941, pile clamping oil cylinder, 942, clamp DETAILED DESCRIPTION

[0066] The embodiments of the present application are described in detail below.

[0067] The resonant hydraulic vibration hammer provided by the present application is developed in view of the deficiencies of the prior art, and can adjust eccentric torque during starting or stopping, thereby eliminating the resonance phenomenon of the resonant hydraulic vibration hammer during starting or stopping, reducing the equipment failure rate, prolonging the service life of the equipment, and reducing the influence on the surrounding environment during construction work.

[0068] For the purpose of facilitating the understanding of the present application, a more comprehensive description of the present application will be given below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0070] Exemplary embodiments will be described in detail below with reference to the drawings. The following description is related to the drawings when the description is made, and the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0071] Embodiments

[0072] Reference Figures 1 to 28As shown, the resonance-free hydraulic vibration hammer provided by the embodiment includes a damping frame 92, a resonance-free vibration gear box 91, a crossbeam 93, and a pile clamping device 94. The crossbeam 93 is installed below the damping frame 92 through the resonance-free vibration gear box 91, and the pile clamping device 94 includes two pile clamping oil cylinders 941 and two clamps 942. The two clamps 942 are respectively installed below the crossbeam 93 through the two pile clamping oil cylinders 941. The resonance-free vibration gear box 91 includes a box body 81, a gear phase converter 10, an eccentric gear set 82, a transition gear 83, a first driving assembly 84, and a second driving assembly 85. The first driving assembly 84 and the second driving assembly 85 are respectively installed at both ends of the box body 81. The eccentric gear set 82 is installed in the middle of the box body 81. The transition gear 83 is installed between the first driving assembly 84 and the eccentric gear set 82. The gear phase converter 10 is installed between the second driving assembly 85 and the eccentric gear set 82. The gear phase converter 10 includes a first phase conversion gear 45 and a second phase conversion gear 46. The eccentric gear set 82 includes two pairs of gear eccentric blocks. Each pair of gear eccentric blocks includes four gear eccentric blocks, i.e., a first eccentric gear 821, a second eccentric gear 822, a third eccentric gear 823, and a fourth eccentric gear 824. The first driving assembly 84 and the second driving assembly 85 respectively include a first driving gear 841 and a second driving gear 851. The first driving gear 841, the transition gear 83, the first eccentric gear 821, the second eccentric gear 822, and the first phase conversion gear 45 are sequentially and meshingly connected. The second driving gear 851, the second phase conversion gear 46, the third eccentric gear 823, and the fourth eccentric gear 824 are sequentially and meshingly connected.

[0073] The resonance-free hydraulic vibration hammer of the embodiment is designed scientifically and the parts are cooperated, a gear phase transformer 10 is additionally arranged in the vibration gear box, the phase transformation main shaft 11 of the gear phase transformer 10 is axially moved to make the first phase transformation gear 45 rotate 180° clockwise relative to the second phase transformation gear 46, that is, the second eccentric gear 822 engaged with the first phase transformation gear 45 rotates 180° counterclockwise relative to the third eccentric gear 823 engaged with the second phase transformation gear 46, that is, the centrifugal force of the second eccentric gear 822 and the centrifugal force of the third eccentric gear 823 are offset, and the first eccentric gear 821 engaged with the second eccentric gear 822 rotates 180° clockwise relative to the fourth eccentric gear 824 engaged with the third eccentric gear 823, that is, the centrifugal force of the first eccentric gear 821 and the centrifugal force of the fourth eccentric gear 824 are offset, the eccentric moment is adjusted; that is, the vibration gear box with the gear phase transformer 10 is axially moved to the full stroke when the equipment is started or stopped, the vertical and horizontal exciting forces generated by the eccentric mass blocks of the eccentric gear set 82 in the vibration gear box are offset, and the resonance phenomenon of the vibration gear box during the starting or stopping process is eliminated; the resonance-free hydraulic vibration hammer can adjust the relative positions between the eccentric blocks of the gears through the gear phase transformer 10 in the vibration gear box, can adjust the eccentric moment during the starting or stopping process, the vertical and horizontal exciting forces generated by the eccentric blocks of the gears are offset, and the resonance phenomenon of the vibration hammer during the starting or stopping process and the influence on the surrounding environment are eliminated.

[0074] The gear phase converter 10 further comprises a phase conversion main shaft 11, a first gear shaft sleeve 20, a second gear shaft sleeve 30, a first gear bearing 41, a second gear bearing 42, a first bearing seat 43, a second bearing seat 44, a first single-acting hydraulic oil cylinder 50, a second single-acting hydraulic oil cylinder 60, two phase conversion pin sleeve assemblies 70, the phase conversion main shaft 11 is a hollow cylindrical type, the phase conversion main shaft 11 comprises a left half and a right half, a right-handed first spiral strip-shaped hole 111 and a second spiral strip-shaped hole 112 are arranged on the left half of the phase conversion main shaft 11, a left-handed third spiral strip-shaped hole 113 and a fourth spiral strip-shaped hole 114 are arranged on the right half of the phase conversion main shaft 11, the spiral phase angles of the first spiral strip-shaped hole 111, the second spiral strip-shaped hole 112, the third spiral strip-shaped hole 113 and the fourth spiral strip-shaped hole 114 are 90° respectively, and they are arranged in turn and sequentially staggered by 90°; a first phase conversion pin hole 21 and a second phase conversion pin hole 22 are arranged on the side wall of the first gear shaft sleeve 20 in opposite directions, a third phase conversion pin hole 31 and a fourth phase conversion pin hole 32 are arranged on the side wall of the second gear shaft sleeve 30 in opposite directions; the first gear bearing 41 and a first phase conversion gear 45 are installed on the outer ring of the first gear shaft sleeve 20 and are installed in the first bearing seat 43 through the first gear bearing 41; the second gear bearing 42 and a second phase conversion gear 46 are installed on the outer ring of the second gear shaft sleeve 30 and are installed in the second bearing seat 44 through the second gear bearing 42; the left end of the phase conversion main shaft 11 penetrates the inner ring of the first gear shaft sleeve 20 and cooperates with a first push shaft 51 of the first single-acting hydraulic oil cylinder 50, one of the phase conversion pin sleeve assemblies 70 penetrates the first phase conversion pin hole 21, the first spiral strip-shaped hole 111, the second spiral strip-shaped hole 112 and the second phase conversion pin hole 22 in turn; the right end of the phase conversion main shaft 11 penetrates the inner ring of the second gear shaft sleeve 30 and cooperates with a second push shaft 61 of the second single-acting hydraulic oil cylinder 60, the other phase conversion pin sleeve assembly 70 penetrates the third phase conversion pin hole 31, the third spiral strip-shaped hole 113, the fourth spiral strip-shaped hole 114 and the fourth phase conversion pin hole 32 in turn.

[0075] Since the first phase conversion gear 45 and the first gear shaft sleeve 20 form an integral whole, and are connected with the right-hand first and second helical strip-shaped holes 111 and 112 of the phase conversion main shaft 11 through the phase conversion pin sleeve assembly 70, when the first phase conversion gear 45 rotates, it will drive the phase conversion main shaft 11 to rotate through the phase conversion pin sleeve assembly 70; similarly, since the second phase conversion gear 46 and the second gear shaft sleeve 30 form an integral whole, and are connected with the left-hand third and fourth helical strip-shaped holes 113 and 114 of the phase conversion main shaft 11 through the phase conversion pin sleeve assembly 70, when the second phase conversion gear 46 rotates, it will drive the phase conversion main shaft 11 to rotate through the phase conversion pin sleeve assembly 70; in use, the first single-acting hydraulic oil cylinder 50 pushes the first push shaft 51 to move axially to the right, and drives the phase conversion main shaft 11 to move axially to the right through the first push shaft 51, at the same time, the first phase conversion gear 45 will rotate clockwise along the first and second helical strip-shaped holes 111 and 112 through the phase conversion pin sleeve assembly 70, when the first push shaft 51 moves to the right to the full stroke, the first phase conversion gear 45 will rotate 90° clockwise; the second phase conversion gear 46 will rotate counterclockwise along the third and fourth helical strip-shaped holes 113 and 114 through the phase conversion pin sleeve assembly 70, when the first push shaft 51 moves to the right to the full stroke, the second phase conversion gear 46 will rotate 90° counterclockwise; see Figure 27As shown, through the transmission chain analysis, the first phase conversion gear 45 rotates clockwise, causing the first drive gear 841 to rotate clockwise, which is the same as the original rotation direction, while the second phase conversion gear 46 rotates counterclockwise, causing the second drive gear 851 to rotate clockwise, which is opposite to the original rotation direction. Therefore, the second phase conversion gear 46 can be used as a fixed reference, and the first phase conversion gear 45 rotates 180° clockwise relative to the second phase conversion gear 46, that is, the first drive gear 841 rotates clockwise at an increasing speed. Since the vibration gear box generates vertical exciting force by rotating pairs of eccentric wheels, the horizontal centrifugal force generated by the pairs of eccentric wheels cancels each other out, and the vertical centrifugal force superimposes each other, thereby generating superimposed vertical exciting force. For example, the second eccentric gear 822 and the third eccentric gear 823, which are vertically superimposed with each other, are engaged with the first phase conversion gear 45 and the second phase conversion gear 46, respectively. When the first push shaft 51 moves to the full stroke to the right, the first phase conversion gear 45 rotates 180° clockwise relative to the second phase conversion gear 46, that is, the second eccentric gear 822 engaged with the first phase conversion gear 45 rotates 180° counterclockwise relative to the third eccentric gear 823 engaged with the second phase conversion gear 46, that is, the centrifugal force of the second eccentric gear 822 and the centrifugal force of the third eccentric gear 823 cancel each other out, while the first eccentric gear 821 engaged with the second eccentric gear 822 rotates 180° clockwise relative to the fourth eccentric gear 824 engaged with the third eccentric gear 823, that is, the centrifugal force of the first eccentric gear 821 and the centrifugal force of the fourth eccentric gear 824 cancel each other out, thereby achieving the adjustment of the eccentric force moment. That is, when the first push shaft 51 moves to the full stroke to the right to push the first single-acting hydraulic cylinder 50, the vibration gear box provided with the gear phase converter 10 eliminates the resonance phenomenon during the start-up or shutdown process of the equipment. Figure 24 As shown, the vertical and horizontal exciting forces generated by the eccentric mass blocks of the eccentric wheels in the vibration gear box cancel each other out, thereby eliminating the resonance phenomenon of the vibration gear box during the start-up or shutdown process.

[0076] Similarly, the second single-acting hydraulic cylinder 60 pushes the second push shaft 61 to move axially to the left, and pushes the phase conversion main shaft 11 to move axially to the left through the second push shaft 61, while the second phase conversion gear 46 rotates clockwise through the phase conversion pin sleeve assembly 70 along the third spiral strip-shaped hole 113 and the fourth spiral strip-shaped hole 114. When the second push shaft 61 moves to the full stroke to the right, the second phase conversion gear 46 rotates 90° clockwise; the first phase conversion gear 45 rotates counterclockwise through the phase conversion pin sleeve assembly 70 along the first spiral strip-shaped hole 111 and the second spiral strip-shaped hole 112. When the second push shaft 61 moves to the full stroke to the left, the first phase conversion gear 45 rotates 90° counterclockwise; see Figure 28As shown, through the transmission chain analysis, the second phase conversion gear 46 rotates clockwise, causing the second drive gear 851 to rotate counterclockwise, which is the same as the original rotation direction, while the first phase conversion gear 45 rotates counterclockwise, causing the first drive gear 841 to rotate counterclockwise, which is opposite to the original rotation direction. Therefore, the first phase conversion gear 45 can be used as a fixed reference, and the second phase conversion gear 46 rotates 180° clockwise relative to the first phase conversion gear 45, that is, the second drive gear 851 rotates counterclockwise at an increased speed. When the first push shaft 51 moves to the full stroke to the left, the third eccentric gear 823 engaged with the second phase conversion gear 46 rotates 180° counterclockwise relative to the second eccentric gear 822 engaged with the first phase conversion gear 45, achieving the adjustment of the eccentric torque again. Figure 26 As shown, the horizontal excitation forces generated by the eccentric mass blocks of the eccentric gears in the vibration gear box cancel each other out, while the vertical excitation forces superimpose on each other, resulting in the maximum vibration (maximum amplitude). When the eccentric mass blocks of the eccentric gears in the vibration gear box reach the maximum frequency, see Figure 25 As shown, the relative positions of the eccentric mass blocks are adjusted (0°< adjustment angle <180°), so that they generate vibrations (0< amplitude <maximum amplitude), thereby driving the pile to vibrate and sink into the foundation. Through the gear phase converter 10 in the vibration gear box, the relative positions of the eccentric blocks of the gears can be adjusted, thereby adjusting the eccentric torque of the eccentric blocks of the gears, so that the vertical and horizontal excitation forces generated by the eccentric blocks of the gears in the vibration gear box cancel each other out when starting or stopping, eliminating the resonance phenomenon of the vibration gear box during starting or stopping and the impact on the surrounding environment. When the amplitude of the vibration gear box needs to be adjusted, the stroke of the single-acting hydraulic cylinder in the gear phase converter 10 can be adjusted to adjust the relative positions of the eccentric mass blocks in the vibration gear box, so that they generate the required amplitude, thereby adjusting the vertical excitation force of the vibration gear box.

[0077] The eccentric gear set 82 includes two pairs of gear eccentric blocks, and the two pairs of gear eccentric blocks are four gear eccentric blocks. The gear eccentric blocks include an eccentric block and a gear, and the eccentric block and the gear are integrally connected. The gears of the four gear eccentric blocks are a first eccentric gear 821, a second eccentric gear 822, a third eccentric gear 823, and a fourth eccentric gear 824. The integral gear eccentric blocks do not have the problem of screw loosening in the split gear eccentric blocks during use, thereby improving the reliability and service life of the vibration gear box.

[0078] The phase conversion pin sleeve assembly 70 comprises a pin shaft 71, a first guide wear sleeve 72, a second guide wear sleeve 73, an intermediate support sleeve 74, a third guide wear sleeve 75, and a fourth guide wear sleeve 76. The first guide wear sleeve 72, the second guide wear sleeve 73, the intermediate support sleeve 74, the third guide wear sleeve 75, and the fourth guide wear sleeve 76 are sequentially sleeved on the outer surface of the pin shaft 71 and are respectively in rotational sliding connection with the pin shaft 71. In use, the four guide wear sleeves are respectively abutted on the spiral strip-shaped hole and the phase conversion pin hole, so as to improve the wear resistance of the phase conversion pin sleeve assembly 70. In design, a lubricating oil groove is further arranged between the intermediate support sleeve 74 and the guide wear sleeves, and gear oil can enter the guide wear sleeves and the pin shaft 71 through the lubricating oil groove to lubricate the guide wear sleeves and the pin shaft 71, so that the rotation of the guide wear sleeves and the pin shaft 71 is more smooth.

[0079] The first single-acting hydraulic oil cylinder 50 comprises a first cylinder barrel 52, a first piston 53, and a first support bearing 54. The first push shaft 51 is installed in the first piston 53 through the first support bearing 54 and is installed in the first cylinder barrel 52 through the first piston 53. The first cylinder barrel 52 is fixed on the first bearing seat 43 through screws. The second single-acting hydraulic oil cylinder 60 comprises a second cylinder barrel 62, a second piston 63, and a second support bearing 64. The second push shaft 61 is installed in the second piston 63 through the second support bearing 64 and is installed in the second cylinder barrel 62 through the second piston 63. The second cylinder barrel 62 is fixed on the second bearing seat 44 through screws. The first push shaft 51 is installed in the first piston 53 through the first support bearing 54, so that the rotation of the first push shaft 51 in the first piston 53 is more smooth. Similarly, the second push shaft 61 is installed in the second piston 63 through the second support bearing 64, so that the rotation of the second push shaft 61 in the second piston 63 is more smooth.

[0080] The application also comprises the first locking nut 23, the second locking nut 24, the first limiting plate 25, the third locking nut 33, the fourth locking nut 34, the second limiting plate 35, the first wear-resistant sleeve 29, the second wear-resistant sleeve 39, the first rotating butt joint shaft 12, the second rotating butt joint shaft 13, the first sealing ring 531, the first wear-resistant ring 532, the second sealing ring 631, the second wear-resistant ring 632, the plurality of first pins 28, the plurality of second pins 38, the first limiting plate 25 separates the outer side surface of the first gear shaft sleeve 20 into the first bearing mounting section 26 and the first gear mounting shaft section 27, the first phase conversion gear 45 is mounted on the first gear mounting shaft section 27 through the first locking nut 23, and the first gear bearing 41 is mounted on the first bearing mounting section 26 through the second locking nut 24; the second limiting plate 35 separates the outer side surface of the second gear shaft sleeve 30 into the second bearing mounting section 36 and the second gear mounting shaft section 37, the second phase conversion gear 46 is mounted on the second gear mounting shaft section 37 through the third locking nut 33, and the second gear bearing 42 is mounted on the second bearing mounting section 36 through the fourth locking nut 34. In addition, the left end of the first bearing mounting section 26 of the first gear shaft sleeve 20 and the right end of the first gear mounting shaft section 27 are respectively provided with external connecting threads, and the first gear bearing 41 and the first phase conversion gear 45 are respectively mounted on the first gear shaft sleeve 20 through the second locking nut 24 and the first locking nut 23, thereby improving the stability of the installation of the first gear bearing 41 and the first phase conversion gear 45. Similarly, the third locking nut 33 and the fourth locking nut 34 are arranged to improve the stability of the installation of the second gear bearing 42 and the second phase conversion gear 46.

[0081] The first phase conversion gear 45 and the first limiting plate 25 are respectively provided with a plurality of first pin holes 451 and second pin holes 251 matched with the first pins 28, and the first pins 28 are respectively pinned into the first pin holes 451 and the second pin holes 251; the second phase conversion gear 46 and the second limiting plate 35 are respectively provided with a plurality of third pin holes 461 and fourth pin holes 351 matched with the second pins 38, and the second pins 38 are pinned into the third pin holes 461 and the fourth pin holes 351. The stability of the first phase conversion gear 45 and the second phase conversion gear 46 is improved.

[0082] The first wear-resistant groove 261 is arranged on the inner side wall of the first gear shaft sleeve 20, the first wear-resistant sleeve 29 is installed in the first wear-resistant groove 261, the left end of the phase conversion main shaft 11 passes through the first wear-resistant sleeve 29 in the inner ring of the first gear shaft sleeve 20 and is matched with the first push shaft 51 of the first single-acting hydraulic oil cylinder 50; the second wear-resistant groove 361 is arranged on the inner side wall of the second gear shaft sleeve 30, the second wear-resistant sleeve 39 is installed in the second wear-resistant groove 361, the right end of the phase conversion main shaft 11 passes through the second wear-resistant sleeve 39 in the inner ring of the second gear shaft sleeve 30 and is matched with the second push shaft 61 of the second single-acting hydraulic oil cylinder 60. The first wear-resistant sleeve 29 and the second wear-resistant sleeve 39 are arranged to improve the wear resistance of the inner walls of the first gear shaft sleeve 20 and the second gear shaft sleeve 30 and the phase conversion main shaft 11.

[0083] The first rotary butt joint shaft 12 and the second rotary butt joint shaft 13 are respectively installed on the left end and the right end of the phase conversion main shaft 11, two first rotary keys 121 are arranged on the end face of the first rotary butt joint shaft 12, two second rotary keys 131 are arranged on the end face of the second rotary butt joint shaft 13, two third rotary keys 511 are arranged on the end face of the first push shaft 51, and two fourth rotary keys 611 are arranged on the end face of the second push shaft 61. The left end of the phase conversion main shaft 11 is matched with the two third rotary keys 511 of the first push shaft 51 through the two first rotary keys 121 of the first rotary butt joint shaft 12; the right end of the phase conversion main shaft 11 is matched with the two fourth rotary keys 611 of the second push shaft 61 through the two second rotary keys 131 of the second rotary butt joint shaft 13. The cooperation of the rotary keys makes the pushing of the push shaft more stable.

[0084] The first piston 53 is provided with a first sealing groove and a second sealing groove on the outer side face, a first sealing ring 531 and a first wear-resistant ring 532 are respectively installed in the first sealing groove and the second sealing groove, and the first piston 53 is sealed with the inner side wall of the first oil cylinder barrel 52 through the first sealing ring 531 and the first wear-resistant ring 532; the second piston 63 is provided with a third sealing groove and a fourth sealing groove on the outer side face, a second sealing ring 631 and a second wear-resistant ring 632 are respectively installed in the third sealing groove and the fourth sealing groove, and the second piston 63 is sealed with the inner side wall of the second oil cylinder barrel 62 through the second sealing ring 631 and the second wear-resistant ring 632. The sealing ring and the wear-resistant ring arranged on the outer side face of the piston improve the sealing performance of the piston and the oil cylinder barrel.

[0085] The technical scheme of the present application has been integrated in the ASV400 hydraulic vibration hammer equipment produced by the applicant, and a prototype test has been carried out under a confidential condition, and the result shows that the ASV400 hydraulic vibration hammer equipment adopting the present application can adjust the eccentric moment during the starting or stopping process of the vibration hammer, eliminate the resonance phenomenon of the vibration hammer during the starting or stopping process, greatly reduce the failure rate of the equipment and prolong the service life of the equipment, can effectively avoid the large amplitude and noise caused by resonance, and significantly reduce the influence on the surrounding environment during construction operation.

[0086] The above is only a specific embodiment of the present application, and does not limit the protection scope of the present application; any replacement and improvement made without violating the concept of the present application belongs to the protection scope of the present application.

Claims

1. A resonance-free hydraulic vibratory hammer, characterized in that, The system includes a vibration damping frame, a resonance-free vibration gearbox, a crossbeam, and a pile clamp. The crossbeam is mounted below the vibration damping frame via the resonance-free vibration gearbox. The pile clamp includes two pile-clamping cylinders and two clamps, with the two clamps respectively mounted below the crossbeam via the two pile-clamping cylinders. The resonance-free vibration gearbox includes a housing, a gear phase converter, an eccentric gear set, a transition gear, a first drive assembly, and a second drive assembly. The first and second drive assemblies are respectively mounted at both ends of the housing, the eccentric gear set is mounted in the middle of the housing, the transition gear assembly is mounted between the first drive assembly and the eccentric gear set, and the gear phase converter is mounted on the first drive assembly. Between the two drive assemblies and the eccentric gear set; the gear phase converter includes a first phase conversion gear and a second phase conversion gear, the eccentric gear set includes two sets of paired gear eccentric blocks, the two sets of paired gear eccentric blocks are four gear eccentric blocks, the four gear eccentric blocks respectively have a first eccentric gear, a second eccentric gear, a third eccentric gear and a fourth eccentric gear, the first drive assembly and the second drive assembly respectively have a first drive gear and a second drive gear, the first drive gear, the transition gear, the first eccentric gear, the second eccentric gear and the first phase conversion gear are sequentially meshed and connected, the second drive gear, the second phase conversion gear, the third eccentric gear and the fourth eccentric gear are sequentially meshed and connected; The gear phase converter further includes a phase conversion spindle, a first gear bushing, a second gear bushing, a first gear bearing, a second gear bearing, a first bearing housing, a second bearing housing, a first single-acting hydraulic cylinder, a second single-acting hydraulic cylinder, and two phase conversion pin assemblies. The phase conversion spindle is a hollow cylinder, comprising a left half and a right half. The left half of the spindle has right-handed first and second helical strip holes, and the right half has left-handed third and fourth helical strip holes. The helical phase angles of the first, second, third, and fourth helical strip holes are all 90° and are arranged sequentially with a 90° offset. The sidewall of the first gear bushing has opposing first and second phase conversion pin holes, and the sidewall of the second gear bushing has opposing third phase conversion pin holes. The first gear bushing has a pin hole and a fourth phase-change pin hole; the first gear bearing and the first phase-change gear are installed on the outer ring of the first gear bushing and are installed in the first bearing housing through the first gear bearing; the second gear bearing and the second phase-change gear are installed on the outer ring of the second gear bushing and are installed in the second bearing housing through the second gear bearing; the left end of the phase-change spindle passes through the inner ring of the first gear bushing and cooperates with the first push shaft of the first single-acting hydraulic cylinder, and one of the phase-change pin bushing assemblies passes through the first phase-change pin hole, the first helical strip hole, the second helical strip hole, and the second phase-change pin hole in sequence; the right end of the phase-change spindle passes through the inner ring of the second gear bushing and cooperates with the second push shaft of the second single-acting hydraulic cylinder, and the other phase-change pin bushing assembly passes through the third phase-change pin hole, the third helical strip hole, the fourth helical strip hole, and the fourth phase-change pin hole in sequence.

2. The resonance-free hydraulic vibratory hammer as described in claim 1, characterized in that, It also includes a first locking nut, a second locking nut, a third locking nut, a fourth locking nut, a first limiting plate, and a second limiting plate. The first limiting plate divides the outer surface of the first gear bushing into a first bearing mounting section and a first gear mounting shaft section. The first phase-changing gear is mounted on the first gear mounting shaft section via the first locking nut, and the first gear bearing is mounted on the first bearing mounting section via the second locking nut. The second limiting plate divides the outer surface of the second gear bushing into a second bearing mounting section and a second gear mounting shaft section. The second phase-changing gear is mounted on the second gear mounting shaft section via the third locking nut, and the second gear bearing is mounted on the second bearing mounting section via the fourth locking nut.

3. The resonance-free hydraulic vibratory hammer as described in claim 2, characterized in that, It also includes multiple first pins and multiple second pins. The first phase transformation gear and the first limiting plate are respectively provided with multiple first pin holes and second pin holes that match the first pins. The first pins are respectively pinned into the first pin holes and the second pin holes. The second phase transformation gear and the second limiting plate are respectively provided with multiple third pin holes and fourth pin holes that match the second pins. The second pins are pinned into the third pin holes and the fourth pin holes.

4. The resonance-free hydraulic vibratory hammer as described in claim 1, characterized in that, It also includes a first wear-resistant sleeve and a second wear-resistant sleeve. A first wear-resistant groove is provided on the inner side wall of the first gear bushing, and the first wear-resistant sleeve is installed in the first wear-resistant groove. The left end of the phase transformation main shaft passes through the first wear-resistant sleeve of the inner ring of the first gear bushing and cooperates with the first push shaft of the first single-acting hydraulic cylinder. A second wear-resistant groove is provided on the inner side wall of the second gear bushing, and the second wear-resistant sleeve is installed in the second wear-resistant groove. The right end of the phase transformation main shaft passes through the second wear-resistant sleeve of the inner ring of the second gear bushing and cooperates with the second push shaft of the second single-acting hydraulic cylinder.

5. The resonance-free hydraulic vibratory hammer as described in claim 1, characterized in that, The gear eccentric block includes an eccentric block and a gear. The eccentric block and the gear are integrally formed and connected. The gears of the four gear eccentric blocks are respectively the first eccentric gear, the second eccentric gear, the third eccentric gear, and the fourth eccentric gear. The first drive assembly also has a first drive motor, which is driven and connected to the first drive gear. The second drive assembly also has a second drive motor, which is driven and connected to the second drive gear.

6. The resonance-free hydraulic vibratory hammer as described in any one of claims 1 to 5, characterized in that, The first single-acting hydraulic cylinder includes a first cylinder body, a first piston, and a first support bearing. The first push shaft is mounted inside the first piston via the first support bearing and is also mounted inside the first cylinder body via the first piston. The first cylinder body is fixed to the first bearing seat by screws. The second single-acting hydraulic cylinder includes a second cylinder body, a second piston, and a second support bearing. The second push shaft is mounted inside the second piston via the second support bearing and is also mounted inside the second cylinder body via the second piston. The second cylinder body is fixed to the second bearing seat by screws.

7. The resonance-free hydraulic vibratory hammer as described in claim 6, characterized in that, It also includes a first rotary docking shaft and a second rotary docking shaft, which are respectively installed on the left and right ends of the phase transformation main shaft. The end face of the first rotary docking shaft is provided with two first rotary keys, the end face of the second rotary docking shaft is provided with two second rotary keys, the end face of the first push shaft is provided with two third rotary keys, and the end face of the second push shaft is provided with two fourth rotary keys. The left end of the phase transformation main shaft cooperates with the two third rotary keys of the first rotary docking shaft through the two first rotary keys; the right end of the phase transformation main shaft cooperates with the two fourth rotary keys of the second push shaft through the two second rotary keys of the second rotary docking shaft.

8. The resonance-free hydraulic vibratory hammer as described in claim 7, characterized in that, It also includes a first sealing ring, a first wear-resistant ring, a second sealing ring, and a second wear-resistant ring. The outer side surface of the first piston is provided with a first sealing groove and a second sealing groove. The first sealing ring and the first wear-resistant ring are respectively installed on the first sealing groove and the second sealing groove. The first piston is sealed to the inner side wall of the first cylinder body through the first sealing ring and the first wear-resistant ring. The outer side surface of the second piston is provided with a third sealing groove and a fourth sealing groove. The second sealing ring and the second wear-resistant ring are respectively installed on the third sealing groove and the fourth sealing groove. The second piston is sealed to the inner side wall of the second cylinder body through the second sealing ring and the second wear-resistant ring.

9. The resonance-free hydraulic vibratory hammer as described in claim 8, characterized in that, The phase transformation pin assembly includes a pin, a first guide wear-resistant sleeve, a second guide wear-resistant sleeve, an intermediate support sleeve, a third guide wear-resistant sleeve, and a fourth guide wear-resistant sleeve. The first guide wear-resistant sleeve, the second guide wear-resistant sleeve, the intermediate support sleeve, the third guide wear-resistant sleeve, and the fourth guide wear-resistant sleeve are sequentially fitted onto the outer surface of the pin and are rotatably and slidably connected to the pin.

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