CN220976400U - Ring beam type slewing device for pile winding type crane - Google Patents

Abstract

The utility model provides a ring beam type slewing device for a pile winding crane, which comprises: the herringbone frame structure comprises a first herringbone frame and a second herringbone frame which are symmetrically arranged, and further comprises a first cross beam connected between the first herringbone frame and the second herringbone frame; the rotary chassis is connected with the second end of the first pull rod and the second end of the second pull rod; the front supporting frame comprises a first bracket and a second bracket which are symmetrically arranged, and a second cross beam which is connected with the first bracket and the second bracket. According to the utility model, through the design of the front support frame, the middle and rear end structures of the truss frame in the prior art are omitted, the structure of the truss frame is simplified, the structural weight is greatly saved, and the installation and the hoisting are more convenient.

Description

Ring beam type slewing device for pile winding type crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a ring beam type slewing device for a pile winding crane.

Background

The pile-winding type rotary crane is a crane arranged on a self-elevating offshore wind power installation platform, is specially used for offshore wind power plant construction, can be used for hoisting and maintaining fans under various complicated sea conditions, and is convenient to install and detach other equipment. The pile is built around the pile leg of the platform, the pile winding work is performed, valuable deck space is saved, and the pile has strong market competitiveness.

Pile-wound slewing cranes typically have a large slewing working amplitude so that the boom or other equipment can be moved to another position when required. The rotary steel structure mainly comprises a herringbone frame, a rotary chassis, a truss frame and the like. The Y-shaped frame is one of important components of the crane for supporting the crane to move up and down, consists of a compression bar, a pull bar, an upper cross beam and the like, is an important component for supporting the pitching and lifting actions of the arm support, and transmits a load to the lower supporting structure. The rotary chassis is one of important components of the crane and consists of a main structure of the rotary chassis, a rotary mechanism bracket, a cylinder body and the like. The purpose of the slewing chassis is to support the weight and load of the crane so that the crane can be moved circumferentially by rotation in a fixed area. The truss frame is one of the components of the crane which can be lifted up and down, and the load on the propeller strut is transferred to the rotary chassis.

Most of steel structural members such as a propeller strut, a rotary chassis and a truss frame on the conventional rotary crane have the defects of large occupied space, complex components, large material consumption, inconvenience in on-site hoisting, large bending moment of a beam at the rear part of the chassis and the like.

Disclosure of utility model

In view of the above, the utility model provides a ring beam type slewing device for a pile-winding type crane, which is used for solving the problems that a steel structural member on the slewing crane occupies a large space and is inconvenient for on-site hoisting.

In order to solve the technical problems, the present utility model provides a ring beam type slewing device for a pile winding crane, comprising:

The first herringbone frame comprises a first pull rod and a first pressure rod, the first end of the first pull rod is connected with the first end of the first pressure rod, the second herringbone frame comprises a second pull rod and a second pressure rod, and the first end of the second pull rod is connected with the first end of the second pressure rod;

The rotary chassis is connected with the second end of the first pull rod and the second end of the second pull rod;

the front support comprises a first support and a second support which are symmetrically arranged, and a second cross beam which is connected with the first support and the second support;

the first bracket is provided with a first installation part which is connected with the second end of the first compression bar;

One end part of the first installation part extends outwards along different directions to form a first supporting leg and a second supporting leg, and the first supporting leg and the second supporting leg are fixed on the rotary chassis;

the second bracket is provided with a second installation part which is connected with the second end of the second compression bar;

One end of the second installation part extends outwards along different directions to form a third supporting leg and a fourth supporting leg, and the third supporting leg and the fourth supporting leg are fixed on the rotary chassis.

In one embodiment of the utility model, the connection lines between the connection points of the first, second, third and fourth support legs and the swivel chassis are located on the same circular arc.

In one embodiment of the utility model, the distance between the second end of the first pull rod and the second end of the second pull rod is smaller than the distance between the first end of the first pull rod and the first end of the second pull rod.

In one embodiment of the utility model, the plurality of first cross beams are arranged between the first pull rod and the second pull rod at intervals and used for connecting the first pull rod and the second pull rod.

In one embodiment of the utility model, a swivel chassis comprises:

The upper box body is a circular column body, and the first pull rod, the second pull rod, the first support leg, the second support leg, the third support leg and the fourth support leg are respectively connected to the circumference of the upper box body;

and the inner cylinder is connected with the upper box body.

In one embodiment of the utility model, the radius of the inner cylinder is smaller than the upper case.

In one embodiment of the present utility model, a first fixing pin is provided on the first mounting portion, the first fixing pin is hinged to the second end of the first compression bar, a second fixing pin is provided on the second mounting portion, the second fixing pin is hinged to the second end of the second compression bar, a third fixing pin and a fourth fixing pin are provided on the swivel base plate, the third fixing pin is hinged to the second end of the first tension bar, and the fourth fixing pin is hinged to the second end of the second tension bar.

In one embodiment of the utility model, the top surface of the upper case is provided with six connection points, a third fixing pin is placed on the first connection point, a fourth fixing pin is placed on the second connection point, a first supporting leg is placed on the third connection point, a second supporting leg is placed on the fourth connection point, a third supporting leg is placed on the fifth connection point, and a fourth supporting leg is placed on the sixth connection point.

In one embodiment of the utility model, the distance between the first connection point and the second connection point is smaller than the distance between the first mounting portion and the second mounting portion.

In one embodiment of the utility model, a plurality of sets of pulley bracket structures are provided on the first beam for lifting and maintenance operations.

The technical scheme of the ring beam type slewing device for the pile-winding crane at least has the following beneficial effects:

1. Through setting up propeller strut structure, anterior support frame and relation of connection, can realize omitting the well rear end structure of truss frame among the prior art, simplified the structure of truss frame, greatly practiced thrift structural weight, and the setting up of second crossbeam has guaranteed the balance of anterior support frame for installation hoist and mount are more convenient.

2. The upper box body of the rotary chassis is arranged in a circular shape, and the landing points of the herringbone frame structure are staggered to form trapezoidal distribution, so that the body quantity of the rotary chassis is compressed, the occupied area of the pile winding type crane is effectively saved, the pull rod and the compression rod are stressed more uniformly, and the local bending moment is reduced.

Drawings

FIG. 1 is a side view of a ring beam type slewing device for a pile-wound crane according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the view B in FIG. 1;

FIG. 3 is a schematic view of the structure of the view angle A in FIG. 1;

FIG. 4 is a side view of a front support bracket of an embodiment of the present utility model;

FIG. 5 is a side view of a swing chassis according to an embodiment of the present utility model;

FIG. 6 is a top view of a swing chassis according to an embodiment of the present utility model;

fig. 7 is a side view of a propeller strut structure in accordance with an embodiment of the present utility model.

Reference numerals:

A ring beam type slewing device 100 for a pile-wound crane;

A propeller strut structure 10; a first propeller strut 11; a first pull rod 111; a first presser bar 112; a second propeller strut 12; a second pull rod 121; a second presser bar 122; a first beam 13;

A swivel chassis 20; an upper case 21; a first connection point 211; a second connection point 212; a third connection point 213; a fourth connection point 214; a fifth connection point 215; a sixth connection point 216; an inner cylinder 22; a third fixing pin 23; a fourth fixing pin 24;

A front support 30; a first bracket 31; a first mounting portion 311; a first support leg 312; a second support leg 313; a second bracket 32; a second mounting portion 321; a third support leg 322; a fourth support leg 323; a second cross member 33; a first fixing pin 34; a second fixing pin 35.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

A ring beam type slewing apparatus 100 for a pile-wound crane according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, fig. 1 shows a side view of a ring beam type slewing apparatus 100 for a pile-wound crane according to an embodiment of the present utility model, fig. 2 shows a schematic view of a view B in fig. 1, and fig. 3 shows a schematic view of a view a in fig. 1.

As shown in fig. 1, the ring beam type slewing apparatus 100 for a pile-wound crane includes a propeller strut 10, a slewing chassis 20, and a front support frame 30.

As shown in fig. 2 and 3, the herringbone frame structure (e.g., the herringbone frame structure 10 of fig. 1) includes a first herringbone frame 11 and a second herringbone frame 12 that are symmetrically disposed, the herringbone frame structure (e.g., the herringbone frame structure 10 of fig. 1) further includes a first cross member 13 connected between the first herringbone frame 11 and the second herringbone frame 12, the first herringbone frame 11 includes a first pull rod 111 and a first compression rod 112, a first end of the first pull rod 111 is connected with a first end of the first compression rod 112, the second herringbone frame 12 includes a second pull rod 121 and a second compression rod 122, and a first end of the second pull rod 121 is connected with a first end of the second compression rod 122.

With continued reference to fig. 2 and 3, a swing chassis (such as swing chassis 20 of fig. 1) is coupled to the second end of the first tie rod 111 and the second end of the second tie rod 121 for supporting the weight and load of the crane. The front support (such as the front support 30 of fig. 1) includes a first bracket 31 and a second bracket 32 symmetrically disposed and a second cross member 33 connected between the first bracket 31 and the second bracket 32. The first bracket 31 is provided with a first mounting portion 311, and the first mounting portion 311 is connected to the second end of the first pressing lever 112. One end of the first mounting portion 311 is formed with a first support leg 312 and a second support leg 313 extending outwardly in different directions, the first support leg 312 and the second support leg 313 being fixed to a swing chassis (such as the swing chassis 20 of fig. 1). The second bracket 32 is provided with a second mounting portion 321, and the second mounting portion 321 is connected to the second end of the second compression bar 122. One end portion of the second mounting portion 321 is formed with a third support leg 322 and a fourth support leg 323 extending outwardly in different directions, and the third support leg 322 and the fourth support leg 323 are fixed to a swing chassis (such as the swing chassis 20 of fig. 1).

In an embodiment of the present utility model, referring to fig. 4, fig. 4 shows a side view of a front support bracket 30 of an embodiment of the present utility model. As shown in fig. 3 and 4, the front support 30 includes a first bracket 31 and a second bracket 32, and the structures of the first bracket 31 and the second bracket 32 may be identical, and the first bracket 31 will be described as an example.

With continued reference to fig. 1, 2 and 3, the first bracket 31 includes a first mounting portion 311, a first support leg 312 and a second support leg 313, the first mounting portion 311, the first support leg 312 and the second support leg 313 form a "chevron", the first mounting portion 311 is connected to the second end of the first compression bar 112, and the first support leg 312 and the second support leg 313 are welded to the swing chassis 20. The first bracket 31 in the shape of a herringbone has a simple structure and is connected with the rotary chassis 20 in a triangular structure, so that the stability is achieved. Compared with the prior art, the structure of the slewing device is simplified, so that the weight and occupied space of the front support frame 30 are reduced, the swing amplitude of the tail of the crane is reduced, and the bending moment borne by the slewing chassis 20 is reduced. The triangular structure formed by the first bracket 31, the second bracket 32 and the rotary chassis 20 ensures that the front support frame 30 is more firmly connected with the rotary chassis 20, thereby facilitating the subsequent hoisting operation of the pile-winding crane. The compression of the rotary structure is carried out through the annular upper box body 21 of the rotary chassis 20, the body of the rotary chassis 20 is compressed, the occupied area of the pile winding type crane is effectively saved, the first pull rod 111, the second pull rod 121, the first compression rod 112 and the second compression rod 122 are stressed more uniformly, the local bending moment of the rotary device is reduced, and the service time of the rotary device is prolonged.

Compared with the device in the prior art, the truss frame occupies large space, the complex material consumption of the components is large, so that the problems of inconvenient field hoisting and large bending moment borne by the rear cross beam of the chassis are caused.

In one embodiment of the present utility model, as shown in fig. 1 and 3, the connection lines between the connection points of the first, second, third and fourth support legs 312, 313, 322 and 323 and the swing chassis 20 are located on the same circular arc, so as to be mounted on the swing chassis 20. The landing points of the front support frame 30 are all on the rotary chassis 20, so that the weight of the crane can be supported, and the load on the propeller strut 10 is transferred to the rotary chassis 20.

In one embodiment of the present utility model, as shown in fig. 1 and 2, the distance between the second end of the first pull rod 111 and the second end of the second pull rod 121 is smaller than the distance between the first end of the first pull rod 111 and the first end of the second pull rod 121. The second pull rod 121 of the first pull rod 111 of the herringbone frame is in an inverted trapezoid shape with a wide upper part and a narrow lower part, compared with a conventional straight upper and lower part structure or with a narrow upper part and a narrow lower part, pile legs can be avoided, the body quantity of the rotary chassis 20 is greatly compressed, the integral rotary frame is made to be smaller, the bending moment born by the integral rotary frame is made to be smaller by optimizing the rear structure, the swing of the tail part of the crane is small, the deck space of a ship is optimally utilized, and the lightweight design of a mechanism platform is realized.

In one embodiment of the present utility model, as shown in fig. 1 and 2, the first beam 13 may include an upper beam connecting the first end of the first tie rod 111 and the first end of the second tie rod 121, a lower beam connecting the second end of the first tie rod 111 and the second end of the second tie rod 121, and a middle beam located intermediate the upper beam and the lower beam. A plurality of first cross members 13 are arranged between the first tie bars 111 and the second tie bars 121 at intervals for connecting the first tie bars 111 and the second tie bars 121. The plurality of first cross members 13 can balance the stress of the first tie rod 111 and the second tie rod 121, so that the herringbone frame structure 10 is more stable. In addition, in other embodiments of the present utility model, the middle cross member may be omitted or the middle cross member may be plural, and the number of the middle cross members is not limited only in the present utility model.

In one embodiment of the present utility model, referring to FIG. 5, FIG. 5 shows a side view of a swing chassis 20 of an embodiment of the present utility model. As shown in fig. 5, the swing chassis 20 includes an upper case 21 and an inner cylinder 22.

As shown in fig. 2 and 3, the upper case 21 is a circular column, and the first pull rod 111, the second pull rod 121, the first support leg 312, the second support leg 313, the third support leg 322, and the fourth support leg 323 are respectively connected to the circumference of the upper case 21. Compared with the conventional field-shaped upper box body 21, the circular cylinder is designed to enable the stress of the first pull rod 111, the second pull rod 121, the first pressure rod 112 and the second pressure rod 122 to be more uniform, so that the local bending moment of the rotary structure is reduced, and the space is saved. The inner cylinder 22 is connected to the upper case 21. The inner cylinder is connected with a propeller strut structure (such as propeller strut structure 10 of fig. 1) and a front support frame (such as front support frame 30 of fig. 1) through an upper box body 21, so as to support the weight and load of the pile-wound crane.

In one embodiment of the present utility model, as shown in fig. 1, the radius of the inner cylinder 22 is smaller than that of the upper case 21. The radius of gyration of the inner side cylinder 22 is smaller, so that the strength of the inner side cylinder 22 is higher than that of the upper box body 21, and the stress distribution is more uniform, thereby improving the bearing capacity of the whole gyration chassis 20 and saving materials and deck space. The radius of the upper case 21 is larger than that of the inner cylinder 22, and the space for mounting is increased when the boom is mounted on the outer cylinder.

In one embodiment of the present utility model, as shown in fig. 2 and 3, the first mounting portion 311 is provided with a first fixing pin 34, the first fixing pin 34 is hinged to the second end of the first compression bar 112, the second mounting portion 321 is provided with a second fixing pin 35, and the second fixing pin 35 is hinged to the second end of the second compression bar 122. A third fixing pin 23 and a fourth fixing pin 24 are provided on the swing base plate (such as the swing base plate 20 of fig. 1), the third fixing pin 23 is hinged to the second end of the first pull rod 111, and the fourth fixing pin 24 is hinged to the second end of the second pull rod 121. The first compression bar 112 and the second compression bar 122 of the propeller strut structure (such as propeller strut structure 10 in fig. 1) are connected with the first mounting part 311 and the second mounting part 321 of the front support frame (such as front support frame 30 in fig. 1) and the first pull rod 111 and the second pull rod 121 are connected with the rotary chassis (such as rotary chassis 20 in fig. 1) through pin shafts, so that the influence of bending moment on the propeller strut structure (such as propeller strut structure 10 in fig. 1) is reduced, and the equipment is convenient to install and detach by staff.

In one embodiment of the present utility model, referring to fig. 6 in combination with fig. 2 and 3, fig. 6 is a top view of a swing chassis 20 according to an embodiment of the present utility model. As shown in fig. 2, 3 and 6, the top surface of the upper case 21 is provided with six connection points, the first connection point 211 and the second connection point 212 are holes, the third fixing pin 23 is placed in the hole of the first connection point 211, the fourth fixing pin 24 is placed in the hole of the second connection point 212, the first support leg 312 may be welded on the third connection point 213, the second support leg 313 may be welded on the fourth connection point 214, the third support leg 322 may be welded on the fifth connection point 215, and the fourth support leg 323 may be welded on the sixth connection point 216. The first connection point 211, the third connection point 213, the fourth connection point 214, the second connection point 212, the fifth connection point 215, and the sixth connection point 216 are symmetrically distributed on the upper case 21, the connection lines between the first connection point 211, the second connection point 212, the fourth connection point 214, and the sixth connection point 216 form an isosceles trapezoid, and the connection lines between the third connection point 213, the fourth connection point 214, the fifth connection point 215, and the sixth connection point 216 form an isosceles trapezoid, and the foot drop point of the herringbone frame structure (such as the herringbone frame structure 10 of fig. 1) and the foot drop point of the front support frame (such as the front support frame 30 of fig. 1) are placed in the connection points, so that the revolving chassis 20 is more uniformly loaded.

In one embodiment of the present utility model, as shown in fig. 2, 3 and 6, the distance between the first connection point 211 and the second connection point 212 is smaller than the distance between the first mounting portion 311 and the second mounting portion 321. The distance between the second end of the first pull rod 111 and the second end of the second pull rod 121 is smaller than the distance between the first mounting portion 311 of the first compression rod 112 and the second mounting portion 321 of the second compression rod 122, so that the landing points of the propeller strut structure (such as propeller strut structure 10 in fig. 1) are staggered to form a trapezoid distribution, the body of the rotary chassis (such as rotary chassis 20 in fig. 1) can be compressed, and the space is effectively saved.

In one embodiment of the present utility model, as shown in fig. 2, a plurality of groups of pulley bracket structures are provided on the first beam 13 located at the highest position of the plurality of first beams 13 for lifting and maintenance operations.

The following describes the operation principle of the ring beam type slewing device 100 for a pile-wound crane according to the embodiment of the present utility model.

When the pile winding type crane is mounted, the second ends of the first pull rod 111 and the second pull rod 121 of the propeller strut 10 are respectively mounted on the third fixing pin 23 and the fourth fixing pin 24 of the slewing chassis 20, and the second ends of the first compression rod 112 and the second compression rod 122 of the propeller strut 10 are respectively mounted on the first positioning pin of the first mounting portion 311 and the second positioning pin of the second mounting portion 321 of the front support frame 30, thereby realizing the mounting process of the slewing device for the pile winding type crane. When a large rotation working range is needed for the pile-winding type crane, the rotation chassis 20 rotates to move other equipment hoisted on the herringbone frame structure 10 to a corresponding position.

In summary, the ring beam type slewing device 100 for pile-winding cranes according to the embodiment of the utility model has a simple structure, is convenient to install and disassemble, and is designed to be as lightweight as possible on the basis of meeting the requirements of rigidity and functions. The ring beam type slewing device 100 for the pile-winding crane is beneficial to optimizing the deck space of a ship, has smaller mechanism platform and has strong market competition.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. A ring beam type slewing device for a pile winding type crane, comprising:

the first herringbone frame comprises a first herringbone frame and a second herringbone frame which are symmetrically arranged, the herringbone frame structure further comprises a first cross beam connected between the first herringbone frame and the second herringbone frame, the first herringbone frame comprises a first pull rod and a first pressure rod, the first end of the first pull rod is connected with the first end of the first pressure rod, the second herringbone frame comprises a second pull rod and a second pressure rod, and the first end of the second pull rod is connected with the first end of the second pressure rod;

The rotary chassis is connected with the second end of the first pull rod and the second end of the second pull rod;

The front support comprises a first support and a second support which are symmetrically arranged, and a second cross beam which is connected with the first support and the second support;

The first bracket is provided with a first installation part, and the first installation part is connected with the second end of the first compression bar;

A first supporting leg and a second supporting leg are formed by extending one end part of the first installation part outwards along different directions, and the first supporting leg and the second supporting leg are fixed on the rotary chassis;

The second bracket is provided with a second installation part, and the second installation part is connected with the second end of the second compression bar;

And one end part of the second installation part extends outwards along different directions to form a third supporting leg and a fourth supporting leg, and the third supporting leg and the fourth supporting leg are fixed on the rotary chassis.

2. The ring beam type slewing device for a pile-wound crane according to claim 1, wherein the connecting lines of the first support leg, the second support leg, the third support leg and the fourth support leg and the connecting point of the slewing chassis are positioned on the same circular arc.

3. The ring beam type slewing device for a pile-winding crane according to claim 1, wherein a distance between the second end of the first tie rod and the second end of the second tie rod is smaller than a distance between the first end of the first tie rod and the first end of the second tie rod.

4. The ring beam type slewing device for a pile-winding crane according to claim 1, wherein the number of the first cross beams is plural, and the plurality of the first cross beams are arranged between the first tie rod and the second tie rod at intervals, and are used for connecting the first tie rod and the second tie rod.

5. The ring beam type slewing device for a pile-wound crane according to claim 1, wherein the slewing chassis comprises:

The upper box body is a circular cylinder, and the first pull rod, the second pull rod, the first supporting leg, the second supporting leg, the third supporting leg and the fourth supporting leg are respectively connected to the circumference of the upper box body;

And the inner cylinder body is connected with the upper box body.

6. The ring beam type slewing device for a pile-winding crane according to claim 5, wherein the radius of the inner cylinder is smaller than that of the upper case.

7. The ring beam type slewing device for a pile-winding type crane according to claim 5, wherein the first mounting portion is provided with a first fixing pin, the first fixing pin is hinged to the second end of the first compression bar, the second mounting portion is provided with a second fixing pin, the second fixing pin is hinged to the second end of the second compression bar, the slewing chassis is provided with a third fixing pin and a fourth fixing pin, the third fixing pin is hinged to the second end of the first tension bar, and the fourth fixing pin is hinged to the second end of the second tension bar.

8. The ring beam type slewing device for a pile-winding type crane according to claim 7, wherein the top surface of the upper case is provided with six connection points, the third fixing pin is placed on the first connection point, the fourth fixing pin is placed on the second connection point, the first supporting leg is placed on the third connection point, the second supporting leg is placed on the fourth connection point, the third supporting leg is placed on the fifth connection point, and the fourth supporting leg is placed on the sixth connection point.

9. The ring beam type slewing device for a pile-wound crane according to claim 8, wherein a distance between the first connection point and the second connection point is smaller than a distance between the first mounting portion and the second mounting portion.

10. The ring beam type slewing device for pile-winding cranes as claimed in claim 4, wherein a plurality of groups of pulley bracket structures are arranged on the first cross beam for hoisting and maintenance operations.