A tail-slip clamp for turning over offshore steel pipe piles

Abstract

The utility model discloses a tail pliers for turning over offshore steel pipe piles, comprising a pliers body and an automatic clamping mechanism. The pliers body comprises an inner plate, an outer plate, a guide port and two side support plates; the inner and outer plates are both lying U-shaped groove plates, and a clamping slot is formed between the upper and lower clamping plates of the inner plate; the outer plate is arranged on the outer side of the inner plate, and the front ends of the top and bottom plates are ahead of the front ends of the upper and lower clamping plates; the guide port comprises an upper inclined plate connected between the upper clamping plate and the front end of the top plate and a lower inclined plate connected between the lower clamping plate and the front end of the bottom plate; the two side support plates are connected one by one between the two sides of the inner plate and the two sides of the outer plate, between the two sides of the upper inclined plate and the two sides of the front of the top plate, and between the two sides of the lower inclined plate and the two sides of the front of the bottom plate; the automatic clamping mechanism comprises a hydraulic jack fixed on the top surface of the lower clamping plate and a clamping plate installed at the end of the piston rod of the hydraulic jack and passing through the upper clamping plate. The utility model can realize quick hooking and firm clamping.

Description

Technical Field

[0001] The utility model relates to a tail-slip clamp used for turning over offshore steel pipe piles. Background Art

[0002] When installing the foundation steel pipe piles of large-capacity wind turbines at sea, due to the large volume of the steel pipe piles and the weight of more than 1,000 tons, when adjusting them from a horizontal state to an upright state, in order to protect the tail of the steel pipe pile from damage, it is necessary to use a tail clamp to hold the tail of the steel pipe pile for lifting. Regardless of whether the double main hook lifting process or the single main hook lifting process is used, in sea areas with good sea conditions, the tail clamp is mainly provided with a slot on the clamp body, and the slot is used to clamp the tail of the steel pipe pile for tail lifting. In sea areas with poor sea conditions, the previous tail clamp is easy to slip, affecting the lifting. If the tail clamp slips off the pile, serious safety accidents may occur. Therefore, it is usually necessary for operators to go to the tail of the steel pipe pile and weld the clamps on both sides of the tail clamp to fix them on the steel pipe pile to improve the safety of the operation. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art and provide a tail clamp for turning over offshore steel pipe piles, which can realize fast hooking and firm clamping, and improve the efficiency and safety of turning over steel pipe piles.

[0004] The purpose of the utility model is achieved as follows: a tail tongs for turning over offshore steel pipe piles, comprising a tongs body and an automatic clamping mechanism; wherein,

[0005] The clamp body includes an inner plate, an outer plate, a guide port and two side support plates; the inner plate is bent from a strip plate with a width of S into a lying U-shaped groove plate with an upper clamping plate, a lower clamping plate and an inner connecting plate, and the distance between the upper clamping plate and the lower clamping plate of the inner plate is greater than the wall thickness of the steel pipe pile to form a clamping groove; the outer plate is also bent from a strip plate with a width of S into a lying U-shaped groove plate with a top plate, a bottom plate and an outer connecting plate, and the distance between the top plate and the bottom plate of the outer plate is greater than the width of the clamping groove, and the length of the top plate and the length of the bottom plate are both greater than the length of the upper clamping plate and the lower clamping plate of the inner plate The length of the plate, the outer plate is arranged on the outer side of the inner plate, and the front end of the top plate and the front end of the bottom plate of the outer plate are ahead of the front end of the upper card plate and the front end of the lower card plate of the inner plate; the guide port is in a lying eight-shaped shape and is connected to the notch of the card slot, and the guide port includes an upper inclined plate and a lower inclined plate; the rear end of the upper inclined plate is connected to the front end of the upper card plate of the inner plate, and the front end of the upper inclined plate is connected to the front end of the top plate of the outer plate; the rear end of the lower inclined plate is connected to the front end of the lower card plate of the inner plate, and the front end of the upper inclined plate is connected to the front end of the bottom plate of the outer plate;

[0006] The two side support plates are connected one by one between the two sides of the inner plate and the two sides of the outer plate, between the two sides of the upper inclined plate and the two sides of the front part of the top plate of the outer plate, and between the two sides of the lower inclined plate and the two sides of the front part of the bottom plate of the outer plate;

[0007] The automatic clamping mechanism includes a hydraulic jack and a clamping plate; the hydraulic jack is fixed on the top surface of the lower clamping plate of the outer plate of the caliper body, and the end of the piston rod of the hydraulic jack passes through the lower clamping plate of the inner plate of the caliper body; the clamping plate is installed on the end of the piston rod of the hydraulic jack.

[0008] In the above-mentioned tail pliers for turning over offshore steel pipe piles, the front end of the upper inclined plate of the guide opening is in an arc shape.

[0009] The above-mentioned tail pliers for turning over offshore steel pipe piles, wherein the pliers body also includes two front support plates which are connected one by one between the front end of the upper clamping plate of the inner plate and the middle part of the top plate of the outer plate and between the front end of the lower clamping plate of the inner plate and the middle part of the bottom plate of the outer plate.

[0010] The above-mentioned tail tongs for turning over offshore steel pipe piles, wherein the tongs body further comprises a lifting lug fixed to the rear part of the top surface of the top plate of the outer side plate.

[0011] In the above-mentioned tail tongs for turning over offshore steel pipe piles, the top surface of the clamping plate is an arc surface adapted to the inner clamping plate surface of the steel pipe pile.

[0012] The tail tongs for turning over offshore steel pipe piles are characterized by:

[0013] 1. By extending the guide opening at the front end of the clamp body, the clamping groove of the tail clamp can be conveniently and accurately clamped into the pile tip.

[0014] 2. An automatic clamping mechanism with a hydraulic jack is added to the tail clamp. By controlling the extension and retraction of the hydraulic jack, the tail clamp can quickly clamp the steel pipe pile to avoid shaking and slipping of the tail clamp when lifting the steel pipe pile. At the same time, it can also prevent operators from welding clamps on both sides of the tail clamp to fix them on the steel pipe pile, effectively improving the efficiency and safety of the steel pipe pile turning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front side view of the tail tongs for turning over offshore steel pipe piles of the utility model;

[0016] Figure 2 It is a rear side view of the tail tongs for turning over offshore steel pipe piles of the utility model;

[0017] Figure 3 yes Figure 1 AA view in the figure;

[0018] Figure 4 yes Figure 1 BB view in the figure. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] See also Figures 1 to 4 The utility model discloses a tail clamp for turning over an offshore steel pipe pile, which is clamped on the tail end of the steel pipe pile and comprises a clamp body and an automatic clamping mechanism.

[0021] The clamp body is a box-shaped structure and includes an inner plate 1, an outer plate 2, a guide port 3, two front support plates 4, two side support plates 5 and a lifting lug 6; wherein,

[0022] The inner plate 1 is a strip plate with a width of S bent into a lying U-shaped groove plate having an upper clamping plate 11, a lower clamping plate 12 and an inner connecting plate 13. The distance between the upper clamping plate 11 and the lower clamping plate 12 of the inner plate 1 is greater than the wall thickness of the steel pipe pile to form a rectangular clamping groove 10;

[0023] The outer plate 2 is also bent from a strip plate with a width of S into a lying U-shaped groove plate having a top plate 21, a bottom plate 22 and an outer connecting plate 23, and the distance between the top plate 21 and the bottom plate 22 of the outer plate 2 is greater than the width of the card slot 10, and the length of the top plate 21 and the length of the bottom plate 22 are both greater than the length of the upper card plate 11 and the length of the lower card plate 12 of the inner plate 1. The outer plate 2 is arranged on the outer side of the inner plate 1, so that the front end of the top plate 21 and the front end of the bottom plate 22 of the outer plate 2 are ahead of the front end of the upper card plate 11 and the front end of the lower card plate 12 of the inner plate 1;

[0024] The guide opening 3 is in a lying eight-shaped shape and is connected to the notch of the card slot 10. The guide opening 3 includes an upper inclined plate 31 and a lower inclined plate 32; the rear end of the upper inclined plate 31 is connected to the front end of the upper card plate 11 of the inner plate 1, and the front end of the upper inclined plate 31 is in an arc shape and is connected to the front end of the top plate 21 of the outer plate 2; the rear end of the lower inclined plate 32 is connected to the front end of the lower card plate 12 of the inner plate 1, and the front end of the upper inclined plate 32 is connected to the front end of the bottom plate 22 of the outer plate 2;

[0025] The two front support plates 4 are connected one by one between the front end of the upper card plate 11 of the inner plate 1 and the middle of the top plate 21 of the outer plate 2 and between the front end of the lower card plate 12 of the inner plate 1 and the middle of the bottom plate 22 of the outer plate 2;

[0026] The two side support plates 5 are connected one by one between the two sides of the inner plate 1 and the two sides of the outer plate 2, between the two sides of the upper inclined plate 31 and the two sides of the front part of the top plate 21 of the outer plate 2, and between the two sides of the lower inclined plate 32 and the two sides of the front part of the bottom plate 22 of the outer plate 2;

[0027] The lifting lug 6 is fixed to the rear portion of the top surface of the top plate 21 of the outer side plate 2 .

[0028] The automatic clamping mechanism includes a hydraulic jack 7 and a clamping plate 71; wherein,

[0029] The hydraulic jack 7 is fixed on the top surface of the bottom plate 22 of the outer plate 2 of the caliper body through the base 70, and the end of the piston rod of the hydraulic jack 7 passes through the through hole opened on the lower clamping plate 12 of the inner plate 1 of the caliper body; the inlet and outlet oil pipes of the hydraulic jack 7 can be connected by opening a hole on a side support plate 5;

[0030] The clamping plate 71 is mounted on the end of the piston rod of the hydraulic jack 7; the top surface of the clamping plate 71 is an arc surface adapted to the inner wall surface of the steel pipe pile.

[0031] The tail tongs for turning over offshore steel pipe piles of the utility model, when in use, first connect the wire rope with the lifting lug 6 of the tail tongs, and use two traction ropes to hang on the small ear plates (not shown) welded on the two side support plates 5 in a one-to-one manner, and then use the two traction ropes to pull and swing the position of the tail tongs, so that the tail tongs can be accurately and smoothly clamped into the tail end of the lying steel pipe pile through the guide opening 3, until the clamping groove 10 completely enters the tail end of the steel pipe pile, and then start the hydraulic jack 7 of the automatic clamping mechanism, so that the clamping plate 71 is pushed out and clamps the steel pipe pile together with the upper clamping plate 11 of the inner side plate 1, so as to prevent the tail tongs from shaking and sliding off, and the arc-shaped top surface of the clamping plate 71 can better contact with the inner wall of the steel pipe pile, so as to stabilize the tail tongs, increase the stability of the connection between the tail tongs and the steel pipe pile, and finally the turning operation of the steel pipe pile can be carried out.

[0032] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A tail tongs for turning over offshore steel pipe piles, comprising a tongs body and an automatic clamping mechanism; characterized in that: The clamp body includes an inner plate, an outer plate, a guide port and two side support plates; the inner plate is bent from a strip plate with a width of S into a lying U-shaped groove plate with an upper clamping plate, a lower clamping plate and an inner connecting plate, and the distance between the upper clamping plate and the lower clamping plate of the inner plate is greater than the wall thickness of the steel pipe pile to form a clamping groove; the outer plate is also bent from a strip plate with a width of S into a lying U-shaped groove plate with a top plate, a bottom plate and an outer connecting plate, and the distance between the top plate and the bottom plate of the outer plate is greater than the width of the clamping groove, and the length of the top plate and the length of the bottom plate are both greater than the length of the upper clamping plate and the lower clamping plate of the inner plate The length of the plate, the outer plate is arranged on the outer side of the inner plate, and the front end of the top plate and the front end of the bottom plate of the outer plate are ahead of the front end of the upper card plate and the front end of the lower card plate of the inner plate; the guide port is in a lying eight-shaped shape and is connected to the notch of the card slot, and the guide port includes an upper inclined plate and a lower inclined plate; the rear end of the upper inclined plate is connected to the front end of the upper card plate of the inner plate, and the front end of the upper inclined plate is connected to the front end of the top plate of the outer plate; the rear end of the lower inclined plate is connected to the front end of the lower card plate of the inner plate, and the front end of the upper inclined plate is connected to the front end of the bottom plate of the outer plate; The two side support plates are connected one by one between the two sides of the inner plate and the two sides of the outer plate, between the two sides of the upper inclined plate and the two sides of the front part of the top plate of the outer plate, and between the two sides of the lower inclined plate and the two sides of the front part of the bottom plate of the outer plate; The automatic clamping mechanism includes a hydraulic jack and a clamping plate; the hydraulic jack is fixed on the top surface of the lower clamping plate of the outer plate of the caliper body, and the end of the piston rod of the hydraulic jack passes through the lower clamping plate of the inner plate of the caliper body; the clamping plate is installed on the end of the piston rod of the hydraulic jack.

2. The tail tongs for turning over offshore steel pipe piles according to claim 1, characterized in that: The front end of the upper inclined plate of the guide opening is in an arc shape.

3. The tail tongs for turning over offshore steel pipe piles according to claim 1, characterized in that: The clamp body also includes two front support plates which are connected one by one between the front end of the upper clamping plate of the inner plate and the middle part of the top plate of the outer plate and between the front end of the lower clamping plate of the inner plate and the middle part of the bottom plate of the outer plate.

4. The tail tongs for turning over offshore steel pipe piles according to claim 1 or 3, characterized in that: The caliper body also includes a lifting ear fixed to the rear portion of the top surface of the top plate of the outer side plate.

5. The tail tongs for turning over offshore steel pipe piles according to claim 1, characterized in that: The top surface of the clamping plate is an arc surface adapted to the inner clamping plate surface of the steel pipe pile.

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