阅读说明：本技术 拉杆系统及岸桥起重机 (Pull rod system and shore bridge crane ) 是由 刘木南 韦仕持 吴国锐 于 2019-10-31 设计创作，主要内容包括：本发明涉及起重机技术领域,具体而言,涉及一种拉杆系统及岸桥起重机。拉杆系统,其包括拉杆组和连接机构；拉杆组用于分别设置在立柱的顶部和前大梁的远离立柱的端部；连接机构的一端与拉杆组连接,连接机构的另一端用于与前大梁连接。其能够通过单组拉杆就能够实现双组拉杆的稳定效果,且结构简单,成本可控,维护便利。(The invention relates to the technical field of cranes, in particular to a pull rod system and a shore bridge crane. A pull rod system comprising a pull rod set and a connecting mechanism; the pull rod group is respectively arranged at the top of the upright column and the end part of the front girder far away from the upright column; one end of the connecting mechanism is connected with the pull rod group, and the other end of the connecting mechanism is used for being connected with the front girder. The double-group pull rod stabilizing device can realize the stabilizing effect of the double-group pull rod through the single group pull rod, and is simple in structure, controllable in cost and convenient to maintain.)

1. A tie rod system, comprising:

a pull rod set and a connecting mechanism;

the pull rod group is used for being respectively arranged at the top of the upright post and the end part of the front girder far away from the upright post;

one end of the connecting mechanism is connected with the pull rod group, and the other end of the connecting mechanism is used for being connected with the front girder.

2. The tie rod system of claim 1, wherein:

the other end of the connecting mechanism is arranged in the middle of the front extension distance of the front girder.

3. The tie rod system of claim 1, wherein:

two ends of the pull rod group are respectively rotatably connected with the top of the upright post and the front girder.

4. The tie rod system of claim 3, wherein:

two ends of the pull rod group are respectively hinged with the top of the upright post and the front girder.

5. The tie rod system of claim 1, wherein:

the pull rod group comprises a plurality of connecting joints, and the adjacent connecting joints are rotatably connected.

6. The tie rod system of claim 5, wherein:

and the adjacent connecting joints are hinged.

7. The tie rod system of claim 5, wherein:

one end of the connecting mechanism is hinged with a hinged point of the pull rod group, and the other end of the connecting mechanism is hinged with the front girder.

8. The tie rod system of claim 1, wherein:

the connecting mechanism comprises a plurality of pulling plates hinged end to end.

9. The tie rod system of claim 1, wherein:

the connecting mechanism is a steel wire rope inhaul cable.

10. A shore crane, characterized in that:

the shore crane comprising the drawbar system according to any of claims 1-9.

Technical Field

The invention relates to the technical field of cranes, in particular to a pull rod system and a shore bridge crane.

Background

The stability of structure needs be ensured through setting up the pull rod to the bank bridge. However, the medium-sized shore bridge is not good in effect when a single group of pull rods or a double group of pull rods are arranged.

Disclosure of Invention

The purpose of the invention includes, for example, providing a pull rod system and a shore crane, which can realize the stabilizing effect of a double-group pull rod through a single group of pull rods, and has the advantages of simple structure, controllable cost and convenient maintenance.

Embodiments of the invention may be implemented as follows:

in a first aspect, embodiments provide a tie rod system comprising:

a pull rod set and a connecting mechanism;

the pull rod group is used for being respectively arranged at the top of the upright post and the end part of the front girder far away from the upright post;

one end of the connecting mechanism is connected with the pull rod group, and the other end of the connecting mechanism is used for being connected with the front girder.

The medium-sized shore bridge often has the problems that the deformation of a beam is overlarge when a single group of pull rods are arranged, the slenderness ratio is not satisfied due to overlong pull rods, the wind vibration is obvious and the like; and the arrangement of two groups of pull rods is too complex, the cost is higher, the maintenance is inconvenient, and the like. According to the scheme, when the single group of pull rods are arranged to connect the top of the stand column and the front girder, the connecting mechanism is arranged to connect the pull rod group with the front girder, and the single group of pull rods and the connecting mechanism are matched in a cooperative mode, so that the problems that the middle span of the girder is large when the single group of pull rods are arranged, the deformation of the girder is large, the length of the pull rod is too long, the wind vibration of the pull rod is obvious, and the vibration of the girder and the pull rod is obvious when the front crane load is carried can be solved, and the problems that the double group of pull rods are too complex, the girder is easy to interfere after the girder is folded, the number of the pull rods.

In conclusion, the pull rod system is simple in structure, low in cost and convenient to maintain, and can ensure the structural stability of the crossbeam and the pull rod.

In an alternative embodiment, the other end of the connecting mechanism is arranged in the middle of the reach of the front girder.

In an alternative embodiment, two ends of the pull rod set are rotatably connected with the top of the upright post and the front girder respectively.

In an alternative embodiment, two ends of the pull rod set are respectively hinged with the top of the upright column and the front girder.

In an alternative embodiment, the tie rod set includes a plurality of connecting joints, and adjacent connecting joints are rotatably connected.

In an alternative embodiment, adjacent said connecting joints are hinged.

In an alternative embodiment, one end of the connecting mechanism is hinged to a hinge point of the pull rod set, and the other end of the connecting mechanism is hinged to the front girder.

In an alternative embodiment, the attachment mechanism includes a plurality of pull plates hinged end to end.

In an alternative embodiment, the connection mechanism is a wire rope cable.

In a second aspect, embodiments provide a shore crane comprising a drawbar system according to any one of the preceding embodiments.

The beneficial effects of the embodiment of the invention include, for example:

the pull rod system solves the problems that when a single group of pull rods are arranged, the pull rods are too long, the wind vibration is obvious, the girder span is too large, and the deflection deformation in the middle of the span is large; meanwhile, the device has the characteristics of simple structure, controllable cost and convenience in maintenance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the tie rod system of the present invention;

FIG. 2 is a partial schematic view of FIG. 1;

FIG. 3 is a schematic illustration of front girder pitch of FIG. 1;

fig. 4 is a schematic structural diagram of the shore crane of the present invention.

Icon: 10-a tie rod system; 100-pull rod group; 110-connecting joint; 200-a connection mechanism; 20-a quay crane; 21-front girder; 22-upright post.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1, the present embodiment provides a tie rod system 10, which includes a tie rod assembly 100 and a connecting mechanism 200.

The pull rod set 100 is used for being respectively arranged at the top of the upright column 22 and the end part of the front girder 21 far away from the upright column 22;

one end of the connecting mechanism 200 is connected to the drawbar group 100, and the other end of the connecting mechanism 200 is used for connecting to the front frame 21.

The quayside container crane (called quay crane or suspension bridge for short) is a special equipment specially used for container wharfs to carry out loading and unloading operations on container ships, and is generally installed on the quay of a port wharf. With the modernization development of the transportation industry, the shore bridge is continuously updated along with the rapid development and the technical progress of the large-scale container transportation ship, the technological content is higher and higher, and the shore bridge is developing towards the large-scale, high-speed, automatic and intelligent directions, high reliability, long service life, low energy consumption and environmental protection.

Therefore, higher requirements are placed on the structural stability of the shore bridge. In the prior art, the front girder 21 is generally connected and stabilized by the tie rod system 10.

When the forward extension distance of the shore container crane is less than 35 m, the pull rod system 10 of the front girder 21 is a single group of pull rods. When the front reach is more than 40 m, the front girder 21 pull rod system 10 is two groups of pull rods which are arranged in front and back. The reach of the medium shore bridge is between 30 and 40 meters, so that the problems that the beam deformation is overlarge when a single group of pull rods are arranged, the slenderness ratio is not satisfied due to overlong pull rods, the wind vibration is obvious and the like often exist; and the arrangement of two groups of pull rods is too complex, the cost is higher, the maintenance is inconvenient, and the like.

According to the scheme, when the single group of pull rods are arranged to connect the top of the upright post 22 and the front girder 21, the connecting mechanism 200 is arranged to connect the pull rod group 100 with the front girder 21, and the single group of pull rods 100 and the connecting mechanism 200 are matched in a cooperative mode, so that the problems that the middle span of the girder is large, the deformation of the girder is large, the length of the pull rod is too long, the wind vibration of the pull rod is obvious, and the vibration of the girder and the pull rod is obvious when the single group of pull rods is arranged are solved, and the problems that the arrangement of the double group of pull rods is too complicated, the folding of the rear pull rods of the pitching girders is easy to interfere, the number of the pull rods. Such a tie rod system 10 is simple in structure, low in cost, convenient to maintain, and can ensure the structural stability of the girder and the tie rod.

Please continue to refer to fig. 1-4 for further details of the structure of the tie rod system 10.

In the present embodiment, the connection mechanism 200 is a wire rope. The cable has with low costs, simple structure, and toughness is outstanding, can buckle at will, has the advantage of practicing thrift the space, being convenient for the transportation, and wire rope's structural strength is big simultaneously, can bear the pulling force of girder and the weight when lifting by crane, and avoids interfering, and it can stabilize the bank bridge with pull rod group 100 cooperatees, avoids the vibration.

It should be noted that the connection mechanism 200 is a cable as just one example, and in other embodiments, the connection mechanism 200 includes a plurality of pulling plates hinged end to end. Such coupling mechanism 200 can fold and contract, has practiced thrift the whole space of equipment when guaranteeing bank bridge stable in structure equally, has improved space utilization.

As can be seen from the drawing, in the present embodiment, the other end of the connecting mechanism 200 is disposed in the middle of the reach of the front side member 21. The connecting mechanism 200 arranged in the middle of the front extension distance of the front girder 21 can ensure the stress stability of the connecting mechanism 200 and the bearing benefit of the pull rod system 10.

Alternatively, as shown in fig. 4, both ends of the tie rod set 100 are rotatably connected to the top of the upright 22 and the front frame 21, respectively. Thus, the structure of the tie rod set 100 can be well adapted to the situation that the front girder 21 needs to be folded and pitched.

It should be noted that, when the front girder 21 of the shore bridge does not need to pitch, the guy cable in the present solution can be directly made into a rigid single pull rod for connection.

Further, two ends of the pull rod group 100 are respectively hinged with the top of the upright column 22 and the front girder 21. The hinge joint has the characteristics of low cost, mature technology and convenient control.

In an alternative embodiment, the drawbar group 100 includes a plurality of connecting joints 110, and adjacent connecting joints 110 are rotatably connected. The adjacent connecting joints 110 can significantly shorten the length of the railing group, and save the space occupied by the railing group. Optionally, adjacent connecting joints 110 are hinged.

As can also be seen from the figures, in the embodiment, one end of the connection mechanism 200 is hinged to the hinge point of the pull rod set 100, and the other end of the connection mechanism 200 is hinged to the front girder 21. It should be noted that, the connection of the hinge point of the connection mechanism 200 and the pull rod assembly 100 can facilitate the transmission of the force applied to the connection mechanism 200 and the pull rod assembly 100, and compared with the connection structure disposed at the non-hinge point of the pull rod assembly 100, such a connection manner can ensure the structural stability of the pull rod assembly 100 and avoid the damage of the connection joint 110 of the pull rod assembly 100 caused by overload.

When in use, the pull rod group 100 is provided with a steel wire rope pull cable, and the middle of the span of the front girder 21 is connected with the pull rod. The added steel wire rope stay is flexible, so that the folding of the pull rod system 10 when the front girder 21 of the shore bridge is pitched cannot be influenced.

Meanwhile, the pull rod can be connected with the girder through the added stay cable, so that the shaking of the pull rod due to wind vibration and the like caused by overlong length is reduced; in addition, the added stay cable is beneficial to reducing the deformation of the girder in the middle of the long span, which is equivalent to adding a pull point of a pull rod in the middle of the girder span. In addition, compared with the arrangement form of two groups of pull rod systems 10, a plurality of pull rod hinge points and pull rods are reduced, the weight of the pull rod systems 10 can be reduced, the cost is reduced, and the maintenance is convenient.

It should be noted that, in order to adapt to the pitching of the girder of the shore bridge, the pull rod can be folded and retracted, and the length of the pull rod set 100 is not too long, and it is preferable that the pull rod set 100 is divided into a plurality of sections in the length direction. And a steel wire rope inhaul cable is pulled at the hinge point close to the lower end to be connected to the middle of the span of the front girder 21, and the diameter of the steel wire rope is selected according to the stress.

As shown in fig. 4, the present embodiment of the invention further provides a shore crane 20, and the shore crane 20 includes the drawbar system 10 according to any one of the foregoing embodiments.

The shore crane 20 has only one connecting rod group, and the connecting rod group is connected with the middle part of the front girder 21 by using the connecting mechanism 200, so that the structure is simple, the cost is low, the maintenance is convenient, and the problems of large wind vibration and shaking, large span deformation of the front girder 21 and the like caused by overlong length of the pull rod of the single-group pull rod system 10 can be solved; and the complex structure of two groups of pull rod systems 10 is avoided, the weight and the cost of the pull rod systems 10 are reduced, and the convenience of maintenance is improved.

The beneficial effects of the embodiment of the invention include, for example:

the pull rod system 10 solves the problems that when a single group of pull rods are arranged, the pull rods are too long, the wind vibration is obvious, the girder span is too large, and the deflection deformation in the middle of the span is large; meanwhile, the device has the characteristics of simple structure, controllable cost and convenience in maintenance.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.