WO2016058266A1

WO2016058266A1 - Port mobile crane capable of being proof against storm wind and capable of overturning to transfer by means of mechanism design

Info

Publication number: WO2016058266A1
Application number: PCT/CN2014/094150
Authority: WO
Inventors: 崔益华; 徐自平; 高剑钊; 杨佳卫; 陆琼晔
Original assignee: 南通润邦重机有限公司
Priority date: 2014-10-17
Filing date: 2014-12-18
Publication date: 2016-04-21
Also published as: CN104326376B; CN104326376A

Abstract

Disclosed is a port mobile crane capable of being proof against storm wind and capable of overturning to transfer by means of a mechanism design. The port mobile crane comprises a tower body (1), an arm frame (2), and a base (3). The middle part of the tower body (1) is provided with a first pull rod (4). The lower part of the tower body (1) is provided with a second pull rod (5). The front end of the first pull rod (4) is provided with a first hinge point (6). The base (3) is provided with a supporting rod (7). The front end of the supporting rod (7) is provided with a second hinge point (8). The first hinge point (6) and the second hinge point (8) are connected by means of a pin shaft. The front end of the arm frame (2) is provided with a supporting wheel (9). The port mobile crane has the following advantages: the port mobile crane has a low whole machine height, is convenient to repair, has strong resistance against storm wind, and can avoid the overturn in storm wind.

Description

Port mobile crane capable of preventing storm and utilizing mechanism design to dump and transfer

Technical field

The invention relates to the field of cranes, in particular to a port mobile crane which is resistant to storms and can be dumped and transferred by means of a mechanism design.

Background technique

The port mobile crane is a kind of crane that can be operated at the dock and yard. It is the key protection equipment of the port. Once the equipment is damaged, it will seriously affect the safe production of the port and even lead to several ports in the port. There are two main situations in the large-scale port 13 lifting equipment dumping accidents caused by windstorms at home and abroad: First, in the case of strong wind forecast, the wind-proof facilities of the port shore cranes cannot withstand strong winds. For example, in 1996, prisoners in Zhanjiang Port were attacked by 15 winds, causing 16 large-scale port machinery to be unstable and overturned, becoming the port disaster with the greatest loss after the founding of the People's Republic; second, it was attacked by unexpected gusts. For example, in July 1991, a sudden hurricane in Qingdao Port, two shore crane cards collapsed, causing port container loading and unloading operations to stop production for half a year; in 2004, two 1880t/h grab unloaders working at Baosteel Raw Material Terminal met with hurricane collision collapse. In recent years, the damage of lifting equipment caused by sudden winds in China has caused many incidents in the port. Therefore, both the port and the crane manufacturer attach great importance to wind protection measures. China clearly stipulates in the "Safety Regulations for Hoisting Machinery" that the track-type starter for open-air work should be equipped with wind-proof devices, including wind-proof fastening devices, anti-climbing devices and anchoring devices. In recent years, a new type of hydraulic windproof iron wedge brake (referred to as windproof iron wedge) and hydraulic wheel wheel brake (referred to as pinch) and other advanced windproof safety devices have been installed on the trolley group of the crane truck running mechanism. It has a good wind and anti-sliding effect against gusts and strong storms that resist large winds. From this point of view, due to the need of unloading, the crane design height is very high, especially those cranes with large weight and large working radius. At this time, when the crane is transferred at the dock and the yard, sometimes it is impossible to Passing, and during overhaul, because the height is too high, the maintenance is difficult, and it is easy to tip over during a storm, so it is necessary to design a design that can put the boom and the tower down on the ground. Chinese patent ZL201120353233.1 discloses a single-arm gantry crane, which comprises a gantry, a turntable, a machine room, a balance beam, a small tie rod, a boom and a driver's cab, and a column, which is arranged above the cylinder of the gantry The turntable is provided with a column above the turntable, and a balance beam is arranged at the top of the column. The balance beam is connected to the arm frame through a small tie rod at the bottom end thereof, and an organic machine room is arranged on the column, on the side of the column on the side of the arm frame. There is a driver's cab, the hoisting wire rope bypasses the reel and a number of pulleys extend below the front end of the boom to connect with the hook. The patent solves the defect that the center of gravity of the whole door machine of the single-arm gantry crane in the prior art is high, thereby affecting the stability of the whole machine, and at the same time, the hoisting wire rope has two winding directions at the same time, which provides a greatly reduced Single-arm door from the center of gravity of the machine to extend the life of the wire rope Heavy machine, although it reduces the center of gravity, but does not substantially reduce the height of the whole machine, there is still the possibility of dumping in the event of a storm; Chinese patent ZL201220297801.5 discloses an energy-saving fixed crane, which includes a base, a base The turntable, the driver's cab and the upper rotating column are arranged on the turntable, the lifting arm is mounted on the turntable, the variable amplitude pulley block is arranged on the lifting arm, the luffing mechanism, the lifting mechanism and the rotating mechanism are installed on the turntable, and the upper rotating column is detachable The jib frame and the hoisting mechanism are arranged in two sets, which comprise an electric motor, a speed reducing device, a coupling and a reel, the electric motor is connected to the deceleration device through a coupling, the deceleration device is connected to the reel, and the deceleration device is connected with respect to the connecting reel Install the brake on the other side. In the above-mentioned energy-saving fixed crane, the luffing mechanism, the hoisting mechanism and the rotating mechanism are arranged on the turntable while ensuring the smaller tail radius of gyration, and the upper rotating column adopts the form of a herringbone frame, so that the crane's own weight is obviously reduced, and energy saving is achieved. The cost reduction effect is obvious. However, in order to solve the problem of being blown down by the storm, the patent has set the crane to a fixed type. Although the technical problem of the storm prevention has been solved to a certain extent, it is inconvenient in maintenance because it cannot move; Chinese patent ZL201320373958. 6 discloses a multi-purpose port tire crane, which comprises a hoisting mechanism, a turntable, an internal combustion engine, a luffing mechanism, a slewing mechanism, a herringbone frame, a boom, a driver's cab, a driving control cabinet, a cable reel or a cable box, and a hydraulic pressure Pump station and multi-way valve, steering axle, drive axle, traveling mechanism, movable leg, fixed leg and underframe, the hoisting mechanism is composed of two independent hoist winches, which can be driven separately or separately. When the double-cable grab is used as the pick-up device, the loading and unloading and stacking operations of the bulk yard and the cargo yard can be realized. When the hook is used as the pick-up device, the dock yard and the goods yard can be used for groceries. Lifting and loading and unloading operations are required, but they cannot be placed in the presence of safety hazards during pre-storms; Chinese Patent Publication No. CN 103723627 A discloses a multifunctional crane including several lifting loads Main beam, straight rail, lifting trolley and power supply system, the number of the main girder of the crane is greater than or equal to 2, and is placed in parallel, the number of the straight rails is the same as the number of the main girder of the crane, respectively fixed at the The top surface of a plurality of crane main beams, the lifting trolley contacting the straight rails is placed at the top end of the plurality of crane main beams, and the power supply system includes a power transmission system and an electrical control system. In the above manner, the multifunctional crane of the invention has the advantages of novel structure, high-speed and stable performance, smart and unique design, harmonious interpersonal, safe and reliable, high work efficiency, convenient use and simple operation, and has a wide market in the popularization of multifunctional cranes. Prospects, but there are also inconveniences such as moving inconvenience and not being able to put a storm. Therefore, the port cranes in the prior art often have defects such that the height of the whole machine is too high and cannot be placed in a prone position and cannot be moved.

Summary of the invention

The object of the present invention is to overcome the above limitations, thereby providing a port mobile crane with low height, convenient maintenance, strong anti-storm ability, avoiding storms falling under storm, and utilizing mechanism design to dump and transfer.

The object of the present invention is achieved by the following technical solutions: a port mobile crane capable of preventing storms and utilizing a mechanism design to dump and transfer, including a tower body, a boom and a base, and a first pull rod in the middle of the tower body, the lower part of the tower body a second pull rod is provided, a first hinge point is arranged at the front end of the first pull rod, a strut is arranged on the base, and a second point is arranged at the front end of the strut, the first hinge point and The second hinge point is connected by a pin shaft, and the front end of the arm frame is provided with a support wheel.

Preferably, the bottom of the tower body is provided with a turntable, and the variable speed oil cylinder is connected to the turntable, and the other end of the variable amplitude oil cylinder is connected to the lower part of the boom.

Preferably, a roller is arranged at the lower part of the base, and a variable amplitude compensation system is arranged on the upper part of the tower.

Preferably, the luffing compensation system comprises:

The lifting pulley block, the lifting pulley block comprises a first lifting pulley and a second lifting pulley, the first lifting pulley is wound with a first lifting wire rope, the second lifting pulley is wound with a second lifting wire rope, the first lifting wire rope and One end of the second hoisting wire rope is attached to the hoisting drum, and the hoisting drum is disposed on the tower body.

Preferably, the other end of the first hoisting rope and the second hoisting rope are connected to the hook at the foremost end of the boom, the first hoisting rope is wound clockwise on the first hoisting pulley, and the second hoisting rope is wound clockwise Two lifts on the pulley.

In summary, the port mobile crane with anti-storm and can be designed and dumped by the mechanism has the following advantages: the whole machine has low height, convenient maintenance, strong anti-storm ability, and avoids falling under the storm.

DRAWINGS

1 is a schematic structural view of an operation state of the present invention;

2 is a schematic structural view of a state of being laid down according to the present invention;

3 is a schematic structural view of a luffing system of the present invention;

Numbers in the figure: 1-tower body, 2-arm frame, 3-base, 4-first tie rod, 5-second pull rod, 6-first hinge point, 7-strut, 8-second hinge point, 9 - Lifting pulley block, 91-first lifting pulley, 92-second lifting pulley, 93-lifting drum, 901-first lifting wire rope, 902-second lifting wire rope, 10-turntable, 11-variable Cylinder, 12-roller, 13-variable compensation system, 14-support wheel, 15-hook.

detailed description

The invention will be further described in detail with reference to the embodiments and the accompanying drawings, which are to be construed as illustrative only.

As shown in FIG. 1 and FIG. 2, a port mobile crane capable of preventing storms and utilizing a mechanism design to dump and transfer, including a tower body 1, a boom 2 and a base 3, and a first tie rod 4 is disposed in the middle of the tower body 1, The bottom of the tower body 1 is provided with a second pull rod 5, the first pull rod 4 and the second pull rod 5 are both on the back side of the tower body 1, the first pull rod 4 is movably connected with the second pull rod 5, and the first pull rod 4 is provided with the first front end The hinge point 6 is provided with a strut 7 on the base 3, and the front end of the strut 7 is provided with a second point 8, the first hinge point 6 and the second hinge point 8 are connected by a pin shaft, and the front end of the arm frame 2 is provided with a support wheel 9 The bottom of the tower body 1 is provided with a turntable 10, and the turntable 10 is connected with a variable amplitude cylinder 11 . The other end of the variable amplitude cylinder 11 is connected to the lower part of the boom 2, and the lower part of the base 3 is provided with a roller 12, A variable amplitude compensation system 13 is provided on the upper portion of the tower body 1. The connection between the tower body 1, the horn cylinder 11 and the boom 2 is designed as a hinge as shown in FIG. At the same time, the first hinge point 6 and the second hinge point 8 are connected by a pin shaft, so that the pin connecting the first hinge point 6 and the second hinge point 8 can be connected when it is necessary to reduce the height of the crane when certain difficulties are encountered. The shaft is unplugged. Then, under the action of the luffing cylinder 11 and the self-weight of the structure, the operating luffing cylinder 11 is slowly extended, and at this time, the tower body 1 and the boom 2 are gradually inverted in the design direction, and the boom 2 is placed on the ground. At the same time, a support wheel 9 is mounted on the head of the boom 2, and when the tower body 1 is gradually lying down on the ground, the support wheel 9 rolls to prevent the head of the boom 2 from rubbing against the ground and causing damage, and the support wheel 9 can be Designed to be movable in the horizontal and vertical directions, the crane can be moved in a circular area until the whole machine is completely laid down on the ground as shown in Figure 2. At this time, the height of the whole machine is 9m, so that the whole machine can be Operating at very low altitudes, it is easy to pass the general high obstacles, which greatly reduces the restrictions on the passage conditions of the whole machine; and during overhaul, due to the low height of the whole machine, the maintenance is very convenient; and the ability to resist storms is very high. Strong. Avoid the hidden danger of the whole machine under storm conditions.

The variable amplitude compensation system 13 shown in FIG. 3 includes: a lifting pulley block 9 including a first lifting pulley 91 and a second lifting pulley 92, and a first lifting wire rope 901 is wound around the first lifting pulley 91, A second hoisting rope 902 is wound around the second hoisting pulley 92, and one ends of the first hoisting rope 901 and the second hoisting rope 902 are connected to the hoisting drum 93, and the hoisting drum 93 is disposed at Tower body 1. The other end of the first hoisting rope 901 and the second hoisting rope 902 are connected to the hook 15 at the foremost end of the boom 2, the first hoisting rope 901 is wound clockwise on the first hoisting pulley 91, and the second hoisting rope 902 is clockwise. Winding on the second lift pulley 92.

Claims

A port mobile crane capable of preventing storms and utilizing a mechanism design to dump and transfer, comprising a tower body (1), a boom frame (2) and a base (3), characterized in that: the tower body (1) is provided in the middle a first pull rod (4), a lower portion of the tower body (1) is provided with a second pull rod (5), a front end of the first pull rod (4) is provided with a first hinge point (6), and the base (3) is provided with a strut (7), a front end of the strut (7) is provided with a second point (8), and the first hinge point (6) and the second hinge point (8) are connected by a pin, the arm frame (2) The front end is provided with a support wheel (14).
The invention relates to a port mobile crane capable of preventing storm and utilizing mechanism design to dump and transfer according to claim 1, wherein the bottom of the tower body (1) is provided with a turntable (10), and the turntable (10) A luffing cylinder (11) is connected to the upper end, and the other end of the luffing cylinder (11) is connected to the lower portion of the boom (2).
The invention relates to a port mobile crane capable of preventing storm and utilizing mechanism design to dump and transfer according to claim 1, wherein a bottom portion of the base (3) is provided with a roller (12), and the tower body (1) The upper part is provided with a variable amplitude compensation system (13).
The port mobile crane according to claim 3, wherein the variable amplitude compensation system (13) comprises:

a lifting pulley block (9), the lifting pulley block (9) comprising a first lifting pulley (91) and a second lifting pulley (92), the first lifting pulley (91) being wound with a first lifting wire rope ( 901), a second hoisting rope (902) is wound around the second hoisting pulley (92), and one end of the first hoisting rope (901) and the second hoisting rope (902) is connected to the hoisting drum ( 93) The lifting drum (93) is disposed on the tower body (1).
The port mobile crane according to claim 4, wherein the first hoisting wire rope (901) and the second hoisting wire rope (902) are connected at the other end. On the hook (15) at the foremost end of the boom (2), the first hoisting wire rope (901) is wound clockwise around the first hoisting pulley (91), and the second hoisting wire rope (902) is wound clockwise On the second lift pulley (92).