Hydraulic hammer fixing device for offshore foundation construction

Abstract

The utility model discloses an offshore foundation construction hydraulic hammer fixing device which comprises an upper layer platform, a first stand column, a second stand column, a first ring beam and a second ring beam, a top fastening device is arranged on the upper layer platform, a bottom fastening device is arranged on the first ring beam, and the first stand column is arranged between the upper layer platform and the second ring beam. The second stand column is arranged between the first ring beam and the second ring beam and used for connecting the first ring beam and the second ring beam. The device is high in safety, and high-altitude operation can be carried out without taking a cage; the construction efficiency is high, the time for workers to take a cage to hook and unhook in the construction process is saved, and the time for sea binding and unbinding of the hydraulic hammer before ship transition is also saved; the top fastening device and the bottom fastening device are arranged, the hydraulic hammer is placed in front of a deck and is straightened in advance through the bottom fastening device, shaking of the hammer body before landing is reduced, and collision is avoided; and the device is good in universality and can be suitable for different types of hydraulic hammers.

Description

TECHNICAL FIELD

[0001] The utility model belongs to offshore construction technical field, concretely relates to a kind of offshore foundation construction hydraulic hammer fixing device. BACKGROUND

[0002] With the diameter of offshore steel pile foundation increasing continuously, hydraulic hammer becomes the main equipment in pile sinking construction process, but the following problems exist in construction:

[0003] Hydraulic hammer is generally placed on the deck of ship, and it will move with the ship during transportation, which is easy to be damaged. To solve this problem, flexible wire rope is currently used to fix the top of hydraulic hammer rod, but it needs to reasonably control the pre-tightening force of wire rope, and the rope is also easy to loosen during transportation.

[0004] The height of hydraulic hammer is very high, about 20m, and the top connection of wire rope sea binding or construction hook needs to be connected by crane to lift the staff to high place, which is low in construction efficiency and high in personnel risk.

[0005] When hydraulic hammer falls back to the deck after piling, the hammer body will shake due to the movement of ship, and it is easy to be damaged by knocking. INVENTION CONTENTS

[0006] To solve the technical problems existing in the prior art, the purpose of the utility model is to provide an offshore foundation construction hydraulic hammer fixing device.

[0007] To achieve the above purposes and achieve the above technical effects, the utility model adopts the following technical scheme:

[0008] An offshore foundation construction hydraulic hammer fixing device, comprising an upper platform, a first column, a second column, a first ring beam and a second ring beam, wherein the upper platform is provided with a top fastening device, the first ring beam is provided with a bottom fastening device, the first column is arranged between the upper platform and the second ring beam to connect the upper platform and the second ring beam, and the second column is arranged between the first ring beam and the second ring beam to connect the first ring beam and the second ring beam.

[0009] Further, the upper platform, the second ring beam and the first ring beam are sequentially arranged from top to bottom.

[0010] Further, the top of the first column is connected with the upper platform, the bottom of the first column is connected with the second ring beam, the top of the second column is connected with the second ring beam, and the bottom of the second column is connected with the first ring beam.

[0011] Further, the first ring beam is of intermittent structure, and a plurality of intermittent positions are arranged on the first ring beam, and each intermittent position is provided with a bottom fastening device.

[0012] Further, the bottom fastening device is used for fixing the hammer cap of the hydraulic hammer, and the bottom fastening device comprises a guide plate, a box, a push rod, a sliding block, a spring, a steel plate, a slide and a second telescopic rod, the second telescopic rod is connected with the box and the first ring beam at two ends respectively, the spring is arranged in the box, the steel plate is arranged on the spring, the push rod is arranged on the steel plate, the guide plate is arranged on the push rod, the sliding block is arranged at the bottom of the push rod, the slide is arranged at the bottom of the box, and the sliding block can slide along the slide; when the guide plate is forced, the push rod is driven to move towards the spring, at this time, the sliding block at the bottom of the push rod moves towards the spring along the slide, and the spring is pressed.

[0013] Further, the second ring beam is in a continuous circular structure.

[0014] Further, the top fastening device is used for fixing the hammer rod of the hydraulic hammer, and the top fastening device comprises a clamping pile arm and a first telescopic rod, one end of the clamping pile arm is hinged with the upper layer platform, the other end is a circular arc clamping structure, the center of the circular arc passes through the center of the hammer rod, one end of the first telescopic rod is hinged with the clamping pile arm, and the other end is hinged with the upper layer platform, and the opening and closing of the clamping pile arm are controlled by controlling the length of the first telescopic rod.

[0015] Further, the circular arc clamping structure is provided with a flexible buffer structure at a contact position of the hammer rod.

[0016] Further, a ladder base is arranged on the upper layer platform, a telescopic ladder with variable amplitude is arranged on the ladder base, different heights of the hydraulic hammer are adapted, and a handrail is arranged around the upper layer platform and the telescopic ladder.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model discloses a kind of offshore foundation construction hydraulic hammer fixing device, including upper platform, first column, second column, first ring beam and second ring beam, top fastening device is provided on upper platform, bottom fastening device is provided on first ring beam, first column is arranged between upper platform and second ring beam, for connecting upper platform and second ring beam, second column is arranged between first ring beam and second ring beam, for connecting first ring beam and second ring beam.The safety of the utility model is high, need not to take lift cage to carry out high-altitude work;Construction efficiency is high, the time of personnel in construction process to take lift cage to hang and unhook is saved, also save the time of hydraulic hammer before ship transfer to sea binding and unbinding;Top fastening device and bottom fastening device are set, hydraulic hammer is placed in deck, is righted in advance by bottom fastening device, reduce the hammer body shaking before landing, avoid bump, equipment is fixed by top fastening device, structure loosening can not be produced because of ship movement, compared with the fixed reliable of flexible steel wire rope;Good universality can be applicable to different style hydraulic hammer, for the diameter change of hammer cap, the diameter of restriction structure can be adjusted by changing the position of bottom fastening device, for the change of hammer rod height, the position of upper platform can be changed by changing the length of first column, so as to change the clamping height of top fastening device, for personnel operation, the hooking and hooking position required can be reached by changing the amplitude and telescopic length of ladder. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 It is the plan view of the utility model;

[0022] Figure 4 It is the structure schematic view of the bottom fastening device of the utility model. DETAILED DESCRIPTION

[0023] The utility model is described in detail below, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be more clearly and explicitly defined.

[0024] The following gives a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects, and neither is it intended to identify key or essential elements of all aspects nor to delineate the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to the more detailed description given later.

[0025] Example 1

[0026] As shown in Figures 1-4 The offshore foundation construction hydraulic hammer fixing device comprises an upper platform 1, a first column 2, a second column 3, a first ring beam 4 and a second ring beam 5, wherein the upper platform 1, the second ring beam 3 and the first ring beam 2 are sequentially arranged from top to bottom, the first column 2 is connected by flange, and the rest are welded, the first column 2 is used for connecting the upper platform 1 and the second ring beam 5, the second column 3 is used for connecting the first ring beam 4 and the second ring beam 5, specifically, the top of the first column 2 is connected with the upper platform 1, the bottom of the first column 2 is connected with the second ring beam 5, the top of the second column 3 is connected with the second ring beam 5, and the bottom of the second column 3 is connected with the first ring beam 4, the second ring beam 5 is a continuous structure, the first ring beam 4 is an intermittent structure, four intermittent positions are arranged on the first ring beam 4, and a bottom fastening device 6 is arranged at each intermittent position, a top fastening device 7 is arranged on the upper platform 1, a ladder base 8 is arranged on the upper platform 1, a telescopic ladder 9 capable of changing amplitude is arranged on the ladder base 8, and the telescopic ladder 9 is used for adapting to hydraulic hammers 10 of different heights, and railings are arranged around the upper platform 1 and the telescopic ladder 9, and inclined ladders or climbing ladders are arranged on the outer sides of the ring beams according to the site conditions, so as to reach the upper platform 1.

[0027] The bottom fastening device 6 is used for fixing a hammer cap 14 of the hydraulic hammer 10 and comprises a guide plate 15, a box body 16, a push rod 17, a sliding block 18, a spring 19, a steel plate 20, a sliding channel 21 and a second telescopic rod 22, the two ends of the second telescopic rod 22 are connected with the box body 16 and the first ring beam 4 respectively, the spring 19 is arranged in the box body 16, the steel plate 20 is arranged on the spring 19, the push rod 17 is arranged on the steel plate 20, the guide plate 15 is arranged on the push rod 17, the sliding block 18 is arranged at the bottom of the push rod 17, and the box body 16 is provided with the sliding channel 20 at the bottom.

[0028] The top fastening device 7 is used for fixing a hammer rod 11 of the hydraulic hammer 10 and comprises a clamping arm 12 and a first telescopic rod 13, one end of the clamping arm 12 is hinged with an upper platform beam, the other end is a circular-arc clamping structure, the center of the circular arc passes through the center of the hammer rod, flexible buffer structures such as rubber blocks are arranged at the contact positions of the circular-arc clamping structure and the hammer rod 11, one end of the first telescopic rod 13 is hinged with the clamping arm 12, and the other end is hinged with the upper platform beam, and the opening and closing of the clamping arm 12 can be controlled by controlling the length of the first telescopic rod 13.

[0029] The utility model discloses still disclose a kind of offshore foundation construction hydraulic hammer fixing method, comprising the following steps:

[0030] 1) pre-draw positioning point for hydraulic hammer hammer cap lower mouth position, facilitate subsequent hydraulic hammer to fall in position;

[0031] 2) Workers enter the upper platform 1 through the inclined ladder or the climbing ladder, and then reach the top of the hydraulic hammer to hook through the telescopic ladder 9;

[0032] 3) The first telescopic rod 13 is retracted, the top fastening device 7 is opened, the second telescopic rod 22 is extended, the guide plate 15 is separated from the hammer cap 14, the hydraulic hammer is lifted off the ground, and the posture of the hydraulic hammer is observed; if the swing is large, the bottom fastening device 6 is used to right the hydraulic hammer; after the hydraulic hammer is stable, the hydraulic hammer is lifted, and the hydraulic hammer is lifted to the top of the steel pile to be driven;

[0033] 4) Pile driving construction;

[0034] 5) The hydraulic hammer is lifted away from the steel pile, at this time the clamping arm 12 of the top fastening device 7 is opened, the second telescopic rod 22 of the bottom fastening device 6 is extended, and the box body 16 is retracted to the maximum;

[0035] 6) The hydraulic hammer is horizontally moved and lifted, and the hammer rod 11 is located in the center of the clamping arm 12 and then slowly falls;

[0036] 7) When falling to the bottom, the bottom fastening device 6 is tightened through the second telescopic rod 22, and the hammer cap 14 is in contact with the guide plate 15;

[0037] 8) The second telescopic rod 22 is continuously retracted to stabilize the hydraulic hammer until there is no lateral movement;

[0038] 9) Through the movement of the crane and the cooperation of the bottom fastening device 6, the center of the hydraulic hammer is adjusted, so that the lower opening of the hammer cap of the hydraulic hammer coincides with the pre-set positioning point, and the hydraulic hammer is continuously lowered until it is placed on the deck of the ship;

[0039] 10) The top fastening device 7 is tightened to fix the hammer rod 11;

[0040] 11) Workers enter the upper platform 1 through the inclined ladder or the climbing ladder, and then reach the top of the hydraulic hammer to unhook through the telescopic ladder 9.

[0041] The parts or structures not specifically described in the utility model can adopt the prior art or existing products, which will not be repeated here.

[0042] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A hydraulic hammer fixing device for offshore foundation construction, characterized in that, It includes an upper platform, a first column, a second column, a first ring beam, and a second ring beam. The upper platform is equipped with a top fastening device, the first ring beam is equipped with a bottom fastening device, the first column is located between the upper platform and the second ring beam to connect the upper platform and the second ring beam, and the second column is located between the first ring beam and the second ring beam to connect the first ring beam and the second ring beam.

2. The hydraulic hammer fixing device for offshore foundation construction according to claim 1, characterized in that, The upper platform, the second ring beam, and the first ring beam are arranged in order from top to bottom.

3. The hydraulic hammer fixing device for offshore foundation construction according to claim 2, characterized in that, The top of the first column is connected to the upper platform, the bottom of the first column is connected to the second ring beam, the top of the second column is connected to the second ring beam, and the bottom of the second column is connected to the first ring beam.

4. A hydraulic hammer fixing device for offshore foundation construction according to claim 1, characterized in that, The first ring beam is an intermittent structure, with several discontinuities on the first ring beam, and each discontinuity is equipped with a bottom fastening device.

5. A hydraulic hammer fixing device for offshore foundation construction according to claim 1 or 4, characterized in that, The bottom fastening device is used to fix the hammer cap of the hydraulic hammer. The bottom fastening device includes a guide plate, a housing, a push rod, a slider, a spring, a steel plate, a slide rail, and a second telescopic rod. The two ends of the second telescopic rod are respectively connected to the housing and the first ring beam. A spring is provided inside the housing, a steel plate is provided on the spring, a push rod is provided on the steel plate, a guide plate is provided on the push rod, a slider is provided at the bottom of the push rod, and a slide rail is provided at the bottom of the housing. The slider can slide along the slide rail. When the guide plate is subjected to force, it drives the push rod to move towards the spring. At this time, the slider at the bottom of the push rod moves towards the spring along the slide rail, compressing the spring.

6. A hydraulic hammer fixing device for offshore foundation construction according to claim 1, characterized in that, The second ring beam has a continuous circular structure.

7. A hydraulic hammer fixing device for offshore foundation construction according to claim 1, characterized in that, The top fastening device is used to fix the hammer rod of the hydraulic hammer. The top fastening device includes a pile clamping arm and a first telescopic rod. One end of the pile clamping arm is hinged to the upper platform, and the other end is an arc-shaped clamping structure with the center of the arc passing through the center of the hammer rod. One end of the first telescopic rod is hinged to the pile clamping arm, and the other end is hinged to the upper platform. The opening and closing of the pile clamping arm is controlled by controlling the length of the first telescopic rod.

8. A hydraulic hammer fixing device for offshore foundation construction according to claim 7, characterized in that, The arc-shaped clamping structure is provided with a flexible buffer structure at the contact position with the hammer rod.

9. A hydraulic hammer fixing device for offshore foundation construction according to claim 1, characterized in that, The upper platform is provided with a ladder base, and the ladder base is provided with a telescopic ladder with variable amplitude to accommodate hydraulic hammers of different heights. The upper platform and the telescopic ladder are all provided with railings and handrails.

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