CN219363021U

CN219363021U - Anti-rolling device for quayside container crane

Info

Publication number: CN219363021U
Application number: CN202320152820.7U
Authority: CN
Inventors: 郑伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-07-18
Anticipated expiration: 2033-02-08

Abstract

The utility model relates to a shoreside container crane anti-rolling device which comprises an anti-rolling trolley (1) and an anti-rolling heavy hammer (2), wherein the anti-rolling trolley (1) is arranged on a travelling trolley track, a follow-up mechanism (4) is arranged between the anti-rolling trolley (1) and the travelling trolley (31), the anti-rolling heavy hammer (2) is pressed on a container lifting appliance (32), two automatic rope collecting and releasing mechanisms (5) are arranged on the anti-rolling trolley (1), the free end of a steel wire rope (52) of one automatic rope collecting and releasing mechanism (5) is connected with the anti-rolling heavy hammer (2) in a downward inclined manner from the front end of the anti-rolling trolley (1), and the free end of the steel wire rope (52) of the other automatic rope collecting and releasing mechanism (5) is connected with the anti-rolling heavy hammer (2) in a downward inclined manner from the rear end of the anti-rolling trolley (1). The anti-rolling device has the advantages of good anti-rolling effect, easiness in implementation and wide application range, and is suitable for the quayside container cranes of various structures. Not only can the inclined pull be used for stabilizing the shaking, but also the inclined pull can be avoided to influence the loading and unloading of the container, and the using effect is better.

Description

Anti-rolling device for quayside container crane

Technical Field

The utility model relates to a container lifting device, in particular to a shoreside container crane anti-rolling device.

Background

The crane for container on shore is a special crane for container loading and unloading on container wharf, its portal frame can be moved along the track parallel to the shore line so as to regulate working position and align container position, and the moving trolley can be moved along the track on the bridge frame so as to load and unload container by means of container lifting tool on the moving trolley. Because the walking distance of the walking trolley on the bridge frame is longer, the running speed of the walking trolley is higher in order to improve the operation speed, so that the container and the lifting appliance swing in the running direction of the trolley when the walking trolley is started and braked, and the loading and unloading efficiency and the operation safety are affected. The faster the trolley is running, the more severe the sway and the greater the risk. In order to solve the problem of swinging of the lifting appliance of the shore container crane, the conventional shore container crane is mainly provided with the following lifting appliance anti-swing mechanisms, and the advantages and disadvantages of the lifting appliance anti-swing mechanisms are as follows.

The lifting steel wire rope is wound in a crossed mode to reduce the vibration, and the lifting steel wire rope does not belong to a vibration reducing mechanism strictly, and has the defects of poor vibration reducing effect, and the lifting appliance has very different vibration reducing effects under different heights and loads; the bending times of the steel wire rope are increased, and the service life of the steel wire rope is influenced.

The eight-rope anti-shake system has good anti-shake effect in the running direction of the trolley and the running direction of the cart, but is not suitable for a tire crane, and can accelerate the abrasion of tires and shorten the service life; the weight of the travelling trolley is also increased, so that the travelling trolley is not suitable for tire cranes and track cranes with low lifting height.

The mechanical anti-rolling mechanism is limited by the deflection angle of the steel wire rope entering and exiting the pulley and the winding drum, and is suitable for tire cranes and track cranes with low lifting height and is not suitable for quayside container cranes with relatively high lifting height.

Although the hydraulic stabilizer may have a sufficient stabilizer effect, it is necessary to provide a hydraulic mechanism for balancing the tension wire rope and the relaxation wire rope, which is troublesome to implement.

When the running trolley runs at rated speed, the fixed pulleys of the four groups of lifting pulley blocks arranged on the separating trolley are driven by chains or screws to separate towards two sides, so that the lifting pulley blocks are in a V-shaped state, and the purpose of stabilizing the vibration is achieved. The disadvantage is that it is mainly suitable for shore bridges and not for other types of quayside container cranes.

The electronic anti-rolling mechanism uses the sensor and the detecting element to collect and detect data, transmits the data to the computer, and changes the belt degree of the trolley through program processing so as to control the shaking of the lifting appliance and achieve the anti-rolling effect. The device is required to be equipped with a transmitting mechanism and a receiving mechanism and is also required to be equipped with a computer, has higher technical requirements, is suitable for shore bridges, tire cranes and track cranes, but is not suitable for large-scale popularization at present, and is more suitable for the needs of future development.

Disclosure of Invention

The utility model aims at providing the anti-rolling device of the shore container crane, which has the advantages of good anti-rolling effect, easy implementation and wide application range, aiming at the defects of various anti-rolling devices of the existing shore container crane.

The technical scheme of the utility model is as follows: the automatic lifting device comprises a vibration reducing trolley and a vibration reducing heavy hammer, wherein the vibration reducing trolley is arranged on a travelling trolley track on a crane bridge of a quayside container through a track wheel, the travelling trolley can travel with the vibration reducing trolley, when the vibration reducing trolley travels to a track end point, the travelling trolley can continue to travel forwards along with a travelling mechanism, the vibration reducing heavy hammer is pressed on a container lifting appliance and can be separated from the container lifting appliance up and down, two automatic rope winding and unwinding mechanisms are arranged on the vibration reducing trolley, at least two steel ropes are respectively connected to a winding drum of each automatic rope winding and unwinding mechanism, the free end of the steel rope of one automatic rope winding and unwinding mechanism is connected with the vibration reducing heavy hammer obliquely downwards from the front end of the travelling direction of the vibration reducing trolley, and the free end of the steel rope of the other automatic rope winding and unwinding mechanism is connected with the vibration reducing heavy hammer obliquely downwards from the rear end of the travelling direction of the vibration reducing trolley.

The utility model has the technical effects that: the anti-rolling device has the advantages of good anti-rolling effect, easiness in implementation and wide application range, and is suitable for the quayside container cranes of various structures. Not only can the inclined pull be used for stabilizing the shaking, but also the inclined pull can be avoided to influence the loading and unloading of the container, and the using effect is better. The anti-rolling trolley walks along with the walking trolley, and the anti-rolling heavy hammer automatically ascends and descends along with the container lifting appliance without additional power. The bidirectional inclined pull type anti-rolling device has the advantages of good anti-rolling effect, convenience in operation and control and capability of achieving an ideal anti-rolling effect. The adoption of the automatic rope winding and unwinding mechanism can automatically tension the steel wire rope, so that the automatic rope winding and unwinding mechanism has a rolling reduction effect and a buffering effect, and is safer and more reliable to use.

Drawings

FIG. 1 is a schematic diagram of a configuration of an embodiment of the present utility model in conjunction with a quayside container crane;

FIG. 2 is a schematic diagram of a walking mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the control of the walking mechanism according to the embodiment of the utility model;

FIG. 4 is a schematic diagram of an automatic rope winding and unwinding mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a brake of a suspension mechanism according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a control mechanism of a suspension hammer according to an embodiment of the present utility model.

Description of the embodiments

As shown in fig. 1, 2, 3, 4, 5 and 6, the anti-rolling trolley comprises an anti-rolling trolley 1 and an anti-rolling weight 2, wherein the anti-rolling trolley 1 is arranged on a travelling trolley rail on a crane frame 3 of a quay container crane through a rail wheel 11, the travelling trolley 31 can travel with the anti-rolling trolley 1 between the anti-rolling trolley 1 and the travelling trolley 31, when the anti-rolling trolley 1 travels to a rail end point, the travelling trolley 31 can further travel along with a travelling mechanism 4, the anti-rolling weight 2 is pressed on a container 32 and can be separated from the container lifting appliance 32 up and down, two automatic winding and unwinding mechanisms 5 are arranged on the anti-rolling trolley 1, at least two steel wire ropes 52 are respectively connected to a winding drum 51 of each automatic winding and unwinding mechanism 5, the free end of each steel wire rope 52 of each automatic winding and unwinding mechanism 5 is obliquely connected with the anti-rolling weight 2 downwards from the front end of the travelling direction of the anti-rolling trolley 1, and the free end of each steel wire rope 52 of the other automatic winding and unwinding mechanism 5 is obliquely connected with the heavy weight 2 downwards from the travelling direction of the anti-rolling trolley 1.

The anti-rolling trolley 1 comprises a frame 12 and rail wheels 11 arranged on two sides of the frame 12, and pulleys 13 matched with steel wire ropes are respectively arranged at the front end and the rear end of the frame 12 of the anti-rolling trolley 1 in the running direction. The front part and the rear part of the frame 12 of the anti-rolling trolley 1 are respectively provided with a buffer device matched with the bridge frame.

The buffer device comprises a buffer rod 14 and a buffer pressure spring 15, wherein the buffer rod 14 is slidably arranged on the anti-shake trolley 1 along the traveling direction of the anti-shake trolley 1, the buffer pressure spring 15 is sleeved on the buffer rod 14, one end of the buffer pressure spring 15 is matched with the anti-shake trolley 1 towards the middle direction of the anti-shake trolley 1, the other end of the buffer pressure spring is matched with the buffer rod 14 towards the outer direction of the anti-shake trolley 1, and the buffer end of the buffer rod 14 protrudes out of the anti-shake trolley 1 and is provided with a buffer head 16.

The buffer device is an elastic buffer block which is arranged on the anti-rolling trolley 1 and matched with the bridge frame.

The length of the anti-shake trolley 1 along the track direction of the traveling trolley is greater than that of the traveling trolley 31, and the traveling trolley 31 is overlooked between the front end and the rear end of the traveling direction of the anti-shake trolley 1 so as to drive the anti-shake trolley 1 to travel, and is separated from the anti-shake trolley 1 when the anti-shake trolley 1 travels to the end point, and the traveling trolley continues to travel forwards so as to maintain the travel of the traveling trolley 31.

The following mechanism 4 is composed of an electromagnetic lock 41, a locking groove 42, a front travel switch 43, a rear travel switch 44 and a change-over travel switch 45, wherein a lock head of the electromagnetic lock 41 is arranged on the anti-rolling trolley 1 towards the anti-rolling trolley, the locking groove 42 is arranged on the traveling trolley 31, the traveling trolley 31 is provided with the position matched with the lock head when the anti-rolling trolley 1 travels, the front travel switch 43 and the rear travel switch 44 are respectively arranged at the positions where the front end and the rear end of the anti-rolling trolley 1 act with a bridge frame, the change-over travel switch 45 is arranged on the anti-rolling trolley 1, a change-over rod of the change-over travel switch 45 is in a V shape, a pull rod 46 matched with the V-shaped change-over rod of the change-over travel switch 45 is arranged on the traveling trolley 31, one end of a normally open contact of the front travel switch 43 is connected with a power supply, the other end of a normally open contact of the change-over travel switch 45 is connected with one end of a normally open contact of the change-over travel switch, the other end of the normally open contact of the rear travel switch 44 is connected with one end of a control power supply in series, the other end of the normally open contact of the change-over travel switch 45 is connected with the other end of the electromagnetic lock 45 in series, and the other end of the electromagnetic lock is connected with the other end of the change-over switch 41.

The anti-rolling heavy hammer 2 is a square frame body positioned at the periphery of the hoisting steel wire rope between the container spreader 32 and the travelling trolley 31, and a plurality of anti-friction pulleys 21 respectively matched with the hoisting steel wire ropes are rotatably arranged at the inner side of the square frame of the anti-rolling heavy hammer 2.

The lower surface of the stabilizer (2) is provided with a plurality of elastic buffer seats (22) matched with the container slings (32).

The automatic rope winding and unwinding mechanism 5 comprises an air storage tank 53, an air cylinder 54, a reduction gearbox 55 and a winding drum 51, wherein the winding drum 51 is arranged on a high-speed rotating shaft of the reduction gearbox 55, a gear 56 is arranged on a low-speed rotating shaft of the reduction gearbox 55, a rack 57 matched with the gear 56 is arranged on a cylinder rod of the air cylinder 54, and an air inlet of the air cylinder 54 is communicated with an air outlet of the air storage tank 53 through a high-pressure air pipe.

The two automatic rope winding and unwinding mechanisms 5 share one air storage tank 53, and the anti-rolling trolley 1 is provided with an air compressor matched with the air storage tank 53.

Each automatic rope winding and unwinding mechanism 5 is provided with a suspension hammer mechanism 6 which can lock the winding drum 51 and prevent the stabilizer hammer 2 from automatically descending along with the container spreader 32. The suspension hammer mechanism 6 is composed of a band-type brake 61 arranged on a winding drum 51 of the automatic rope winding and unwinding mechanism 5 and a band-type brake cylinder 62 matched with the band-type brake 61, the band-type brake cylinder 62 is connected with an air storage tank through an electromagnetic valve 63, and a power line of the electromagnetic valve 63 is connected with a power supply through a change-over switch 64. The band-type brake 61 is provided with a band-type brake return spring 65.

Working principle:

when the shore container crane normally works, the anti-rolling heavy hammer 2 presses on the container lifting appliance 32, the traveling trolley 31 is located at the middle position of the anti-rolling trolley 1 along with the lifting of the container lifting appliance 32, the electromagnetic lock 41 on the anti-rolling trolley 1 is matched with the locking groove 42 on the traveling trolley 31, and the traveling trolley 31 travels together with the anti-rolling trolley 1.

When the anti-rolling trolley 1 moves to the front end of the travelling trolley track along with the travelling trolley 31 on the bridge, the anti-rolling trolley 1 stops travelling while being blocked, a front travel switch 43 on the anti-rolling trolley 1 is contacted with the bridge, a normally open contact of the front travel switch 43 is closed, and the electromagnetic lock 41 is electrically operated in cooperation with a forward closed backward open contact of the transfer travel switch 45, so that a lock head of the electromagnetic lock 41 is retracted, the electromagnetic lock is withdrawn from a lock groove 42, and the travelling trolley 31 can continuously travel forwards. The traveling carriage 31 is manually controlled to stop traveling when it travels to a proper position so as to load and unload the container. The traveling trolley 31 independently travels at the beginning stage of reverse traveling, the pulling rod 46 on the traveling trolley 31 contacts and drives the rear lever arm of the V-shaped switching rod of the switching travel switch 45, so that the rear lever arm of the V-shaped switching rod is turned down (the front lever arm is turned over to be matched with the pulling rod 46), the forward closing and backward opening contact of the switching travel switch 45 is opened (the backward closing and forward opening contact is closed), the electromagnetic lock 41 is powered off, the lock head is reset and extends forwards to be matched with the locking groove 42, and the traveling trolley 31 can travel backwards with the anti-rolling trolley. The principle of the travelling trolley 31 carrying the anti-roll trolley 1 travelling on the bridge towards the rear end of the track and vice versa is the same as described above. The purpose that the traveling trolley 31 can travel with the anti-rolling trolley 1 and can continue traveling when the anti-rolling trolley 1 reaches the track end point and can travel in the reverse direction can also travel with the anti-rolling trolley 1 is achieved.

When the travelling trolley 31 walks with the anti-rolling trolley 1, the travelling trolley 31 is positioned in the middle of the anti-rolling trolley 1, and the inclined angles of the steel wire ropes 52 at the two sides of the anti-rolling heavy hammer 2 are consistent. When the anti-rolling trolley 1 walks to the end point and the walking trolley 31 deviates from the middle position of the anti-rolling trolley 1, as the two automatic rope winding and unwinding mechanisms 5 work independently, the inclined angle of the steel wire rope 52 on one side is increased, and the inclined rolling and anti-rolling effect can be still achieved due to the reduction of the other side.

When the anti-rolling weight 2 rises along with the container spreader 32, the pulling force of the hoisting drum 51 by the steel wire rope 52 is reduced, the pressure of the cylinder rod of the air cylinder 54 by the rack 57 is reduced, the cylinder rod is extended outwards by the air pressure in the air storage tank 53, and the hoisting drum 51 is driven to rotate by the rack 57 and the reduction gearbox 55, so that the steel wire rope 52 is automatically tightened. When the anti-rolling weight 2 descends along with the container spreader 32, the pulling force of the steel wire rope 52 on the winding drum 51 increases, the winding drum 51 rotates to release the steel wire rope 52 due to the pulling force of the steel wire rope 52, and the winding drum 51 drives the cylinder rod of the cylinder 54 to retract through the reduction gearbox 55, the gear 56 and the rack 57. The two automatic rope winding and unwinding mechanisms 5 respectively and independently act, so that the steel wire rope 52 can be automatically tightened when the stabilizer weight 2 ascends, and the steel wire rope 52 can be automatically released when the stabilizer weight 2 descends, so that the steel wire rope 52 is always tensioned, and inclined pulling and stabilization are realized.

In order to prevent the diagonal cable 52 from interfering with the container spreader 32 in handling the container or interfering with the hull and other containers, it is necessary to manually control the stabilizer 2 not to automatically descend with the container spreader 32 if necessary, and thus a suspension mechanism 6 is provided.

When the anti-rolling heavy hammer 2 does not need to automatically descend along with the anti-rolling heavy hammer 2, the change-over switch 64 can be controlled to enable the electromagnetic valve 63 to be opened, the band-type brake cylinder 62 acts to drive the band-type brake 61 to hold the winding drum 51 tightly, and the winding drum 51 is prevented from rotating. Even if the container spreader 32 descends at this time, the hoisting drum 51 is held and cannot rotate, and the wire rope 52 pulls the stabilizer 2 to prevent the stabilizer from following the container spreader 32 to descend, so that the purpose of hovering the stabilizer 2 is achieved. When the container spreader 32 rises again and contacts the stabilizer 2, the change-over switch 64 can be controlled to disconnect the electromagnetic valve 63, the band-type brake cylinder 62 is reset, the band-type brake 61 releases the winding drum 51, the stabilizer 2 presses on the container spreader 32, and the hovering is finished. When the container spreader 32 does not contact the stabilizer 2, the band-type brake 61 cannot be enabled to release the winding drum 51, so that the container spreader 32 is prevented from being hit by the stabilizer 2 due to rapid falling, and safety accidents are avoided. In order to prevent the tilting of the stabilizer 2 during hovering, the two suspension mechanisms 6 need to act simultaneously, and the two steel wires 52 on the winding drum 51 of each automatic rope winding and unwinding mechanism 5 are connected with the stabilizer at left and right intervals, so as to prevent the tilting of the stabilizer 2 during hovering.

Claims

1. The utility model provides a bank container crane stabilizer which characterized in that: the automatic lifting device comprises a lifting trolley (1) and lifting weights (2), wherein the lifting trolley (1) is arranged on a travelling trolley rail on a crane span structure of a shore container crane (3) through rail wheels (11), a follow-up mechanism (4) is arranged between the lifting trolley (1) and the travelling trolley (31), the lifting weights (2) are pressed on a container lifting tool (32) and can be separated from the container lifting tool (32) up and down, two automatic winding and unwinding rope mechanisms (5) are arranged on the lifting trolley (1), at least two steel wire ropes (52) are respectively connected onto a winding drum (51) of each automatic winding and unwinding rope mechanism (5), the free end of each steel wire rope (52) of one automatic winding and unwinding rope mechanism (5) is obliquely downwards connected with the lifting weights (2) from the front end of the lifting trolley (1) in the travelling direction, and the free end of each steel wire rope (52) of the other automatic winding and unwinding rope mechanism (5) is obliquely downwards connected with the lifting weights (2) from the rear end of the lifting trolley (1) in the travelling direction.

2. The anti-rolling device of the shore container crane according to claim 1, wherein the anti-rolling trolley (1) comprises a frame (12) and rail wheels (11) arranged on two sides of the frame (12), and pulleys (13) matched with steel wire ropes are respectively arranged at the front end and the rear end of the frame (12) of the anti-rolling trolley (1) in the running direction.

3. A quay container crane stabilizer according to claim 1, wherein the front and rear parts of the frame (12) of the stabilizer trolley (1) are provided with respective buffer means cooperating with the bridge frame.

4. A quayside container crane anti-sway device according to claim 3, characterized in that the buffer device is composed of a buffer rod (14) and a buffer pressure spring (15), the buffer rod (14) is slidably mounted on the anti-sway trolley (1) along the travelling direction of the anti-sway trolley (1), the buffer pressure spring (15) is sleeved on the buffer rod (14), one end of the buffer pressure spring (15) is matched with the anti-sway trolley (1) towards the middle direction of the anti-sway trolley (1), the other end is matched with the buffer rod (14) towards the outer direction of the anti-sway trolley (1), and the buffer end of the buffer rod (14) protrudes out of the anti-sway trolley (1) and is provided with a buffer head (16); the buffer device is an elastic buffer block which is arranged on the anti-rolling trolley (1) and matched with the bridge frame.

5. The shoreside container crane stabilizer device as claimed in claim 1, characterized in that the length of the stabilizer trolley (1) in the direction of the travelling trolley track is greater than the length of the travelling trolley (31), the travelling trolley (31) being located between the front end and the rear end of the stabilizer trolley (1) in the travelling direction in top view.

6. The shore container crane stabilizer device according to claim 1, wherein the travelling mechanism (4) is composed of an electromagnetic lock (41), a lock groove (42), a front travel switch (43), a rear travel switch (44) and a change-over travel switch (45), the lock head of the electromagnetic lock (41) is installed on the stabilizer trolley (1) towards the stabilizer trolley, the lock groove (42) is arranged on the travelling trolley (31), the travelling trolley (31) is arranged at a position matched with the lock head when travelling with the stabilizer trolley (1), the front travel switch (43) and the rear travel switch (44) are respectively installed at the positions where the front end and the rear end of the stabilizer trolley (1) are in interaction with a bridge, the change-over travel switch (45) is arranged on the stabilizer trolley (1), the change-over lever of the change-over travel switch (45) is V-shaped, one end of a normally open contact of the front travel switch (43) is connected with a power supply, the other end of the normally open contact is connected with one end of the change-over switch (45) after the travel switch (45) is opened, the other end of the normally open contact is connected with one end of the normally open travel switch (45) after the travel switch is opened, the other end of the normally open contact is connected with the power supply is opened, the other end of the forward closing and backward opening contact of the transfer travel switch (45) and the other end of the backward closing and forward opening contact of the transfer travel switch (45) are respectively connected with one end of a coil of the electromagnetic lock (41), and the other end of the coil of the electromagnetic lock (41) is connected with the other end of the control power supply.

7. The shoreside container crane anti-rolling device as claimed in claim 1, wherein the anti-rolling heavy hammer (2) is a square frame body positioned at the periphery of the hoisting steel wire rope between the container spreader (32) and the travelling trolley (31), and a plurality of anti-rolling pulleys (21) respectively matched with the hoisting steel wire ropes are rotatably arranged at the inner side of the square frame of the anti-rolling heavy hammer (2).

8. A shoreside container crane stabilizer as claimed in claim 7, characterized in that the lower surface of the stabilizer (2) is provided with a number of elastic buffer seats (22) cooperating with container spreaders (32).

9. The shore container crane stabilizer of claim 1, wherein the automatic rope winding and unwinding mechanism (5) comprises a gas storage tank (53), a cylinder (54), a reduction gearbox (55) and a winding drum (51), the winding drum (51) is arranged on a high-speed rotating shaft of the reduction gearbox (55), a gear (56) is arranged on a low-speed rotating shaft of the reduction gearbox (55), a rack (57) matched with the gear (56) is arranged on a cylinder rod of the cylinder (54), and a gas inlet of the cylinder (54) is communicated with a gas outlet of the gas storage tank (53) through a high-pressure gas pipe.

10. The shore container crane stabilizer device according to claim 1, characterized in that each automatic winding and unwinding rope mechanism (5) is respectively provided with a suspension hammer mechanism (6) capable of locking a winding drum (51) so that a stabilizer weight (2) cannot automatically descend along with a container lifting appliance (32), the suspension hammer mechanism (6) consists of a band-type brake (61) arranged on the winding drum (51) of the automatic winding and unwinding rope mechanism (5) and a band-type brake cylinder (62) matched with the band-type brake (61), the band-type brake cylinder (62) is connected with an air storage tank through an electromagnetic valve (63), a power line of the electromagnetic valve (63) is connected with a power supply through a change-over switch (64), and a band-type brake reset spring (65) is arranged on the band-type brake (61).