CN205204646U - Four bracket dollies on bank bridge - Google Patents

Abstract

The utility model provides a four bracket dollies on bank bridge, it includes first land side bracket dolly, second land side bracket dolly, the bracket dolly is surveyed in first sea, the bracket dolly is surveyed in the second sea, two sets of tensioning hydro -cylinders and two reels, be equipped with a wire rope and the 2nd wire rope on each reel, a wire rope changes backward through the head assembly pulley and surveys the bracket dolly with first sea and be connected, the 2nd wire rope changes to being connected with first land side bracket dolly through the afterbody assembly pulley, each tensioning hydro -cylinder is connected with the afterbody assembly pulley that corresponds, first land side bracket dolly inclines with the second land and is connected through the 3rd wire rope between the bracket dolly, first sea is surveyed the bracket dolly and is connected through fourth wire rope between the bracket dolly with extra large survey of second, second land side bracket dolly is connected through the 5th wire rope between the bracket dolly with extra large survey of second. The utility model discloses an application demand large -scale and even extra -large -size bank bridge has been satisfied in the winding innovative design of four bracket dollies on bank bridge.

Description

Four-bracket trolley for quayside crane

technical field

The utility model relates to a quay bridge bracket trolley, in particular to a quayside bridge four bracket trolley, which is suitable for the bracket trolley with its own drive system that can operate independently, and the bracket trolley does not need or can run within a limited range after the girder is raised. , Extra-large quayside crane with super long front and rear extension.

Background technique

In the field of quay crane bracket trolley, for extra-large quay cranes with super long front and rear stretches, the suspension and bouncing problems of wire ropes are usually solved in a conventional way, for example, a bracket is arranged on the sea and land sides of the quay bridge The method of racking a trolley. This method cannot solve the above-mentioned existing problems, especially when the front stretch is particularly long, it is difficult to deal with the three-bracket trolley winding scheme that uses two bracket trolleys on the land side and one bracket trolley on the sea side This persistent disease.

The bouncing of the wire rope seems to be a small problem, but in fact it directly affects the operating stability and operating efficiency of the large and small cranes of the quay crane. It will aggravate the vibration of the quay crane, affect the performance of the whole machine, and sometimes even directly become one of the important reasons why the quay crane cannot be handed over smoothly. Furthermore, the steel wire rope with a large span also needs to overcome the tension force required to overcome the sag under its own weight. A large increase in the tension force will not only increase the cost of the tensioning device, but also reduce the life of the steel wire rope.

In addition, the carriage trolley has always been driven by the main trolley. The movement of the carriage trolley and the main trolley, which are connected by flexible wire ropes, is not independent and interferes with each other, resulting in a misalignment between the actual parking position of the trolley and its theoretical position.

Therefore, based on the above situation, those skilled in the art urgently need to control the suspension of the wire rope from the source of the problem, in order to solve the problem that the carriage trolley can operate independently.

Utility model content

The technical problem to be solved by the utility model is to provide a four-bracket trolley for quayside cranes in order to overcome the defect that the quayside crane bracket trolley in the prior art cannot be applied to extra-large quayside bridges.

The utility model solves the above-mentioned technical problems through the following technical solutions: a four-bracket trolley for the quayside bridge, which is characterized in that the four-bracket trolley for the quayside bridge includes a first landside bracket trolley, a second landside Bracket trolley, first ocean survey bracket trolley, second ocean survey bracket trolley, two sets of tensioning oil cylinders and two reels, each of which is provided with a first steel wire rope and a second steel wire rope, said The first steel wire rope is redirected through the head pulley block and then connected to the first ocean survey bracket trolley, and the second steel wire rope is connected to the first landside bracket trolley through the tail pulley block redirection. The oil cylinder is connected with the corresponding tail block;

The first landside bracket trolley is connected to the second landside bracket trolley through a third wire rope;

The first ocean survey bracket trolley is connected to the second ocean survey bracket trolley through a fourth wire rope;

The second landside bracket trolley is connected to the second marine survey bracket trolley through a fifth steel wire rope.

Preferably, the first sea side bracket trolley is equipped with a first pulley assembly, one end of the first steel wire rope is connected to the corresponding drum, and the other end passes through the head pulley block and the first pulley in turn. A pulley is assembled and fixed to the fastening point of the head wire rope, and the head wire rope fastening point is located on the object outside the first ocean survey bracket trolley.

Preferably, the first landside carriage trolley is provided with a second pulley assembly, one end of the second wire rope is connected to the corresponding drum, and the other end passes through the tail pulley block and the second pulley in sequence. After the pulley is assembled, it is fixed to the fastening point of the steel wire rope at the tail, and the fastening point of the steel wire rope at the tail is located on the object outside the first landside bracket trolley.

Preferably, a set of third pulley assemblies are respectively provided at both ends of the first land side bracket trolley, and one end of the third steel wire rope is fixed to the first steel wire rope system on the second land side bracket trolley. At the fixed point, the other end is assembled through the third pulley and fixed to the second wire rope fastening point, and the second steel wire rope fastening point is located on the object outside the second landside bracket trolley.

Preferably, a set of fourth pulley assemblies are respectively provided at both ends of the first ocean survey bracket trolley, and one end of the fourth steel wire rope is fixed to the third steel wire rope system on the second ocean survey bracket trolley. At the fixed point, the other end is assembled through the fourth pulley and fixed to the fourth wire rope fastening point, and the fourth steel wire rope fastening point is located on the object outside the second sea side bracket trolley.

Preferably, two sets of fifth pulley assemblies are also provided on the second sea surveying carriage trolley, and one end of the fifth steel wire rope is fixed to the fifth steel rope on the second landside carriage trolley. point, and the other end passes through two sets of the fifth pulley and is assembled and fixed to the sixth wire rope fastening point on the second land side bracket trolley.

Preferably, the speed of the first ocean surveying carriage is half of the speed of the first wire rope, and the speed of the first landside carriage is half of the speed of the second wire rope.

Preferably, the speed of the first landside carriage trolley is half that of the second landside carriage carriage.

Preferably, the speed of the first sea surveying carriage is half of that of the second sea surveying carriage.

Preferably, the speed of the second landside carriage trolley is equal to the speed of the second marine survey carriage trolley.

The positive progressive effect of the present utility model is:

The four bracket trolleys of the quay bridge of the utility model use two bracket trolleys with different speeds on the sea and land sides to support the lifting winding of the quay bridge, the trolley winding and its own winding steel wire rope, and increase the number of bracket trolleys. To shorten the span of the wire rope, thereby reducing the suspension of the wire rope. At the same time, an independent drive system is added in the machine room of the quay crane, so that the carriage trolley can run independently without the traction of the main trolley. By rationally arranging the pulley blocks and wire ropes, the speed of the carriage trolley is effectively controlled, and an independent drive system is added to realize the innovative design of four carriage trolley winding for the quayside crane, which meets the application requirements of large and even super large quayside cranes.

Description of drawings

The above-mentioned and other features, properties and advantages of the present utility model will become more apparent through the following description in conjunction with the accompanying drawings and embodiments. In the accompanying drawings, the same reference numerals always represent the same features, wherein:

Fig. 1 is the winding arrangement diagram of the four-bracket trolley of the quay crane of the utility model.

Fig. 2 is a working principle diagram of the head pulley block in the four-bracket trolley of the quay crane of the utility model.

Fig. 3 is a working principle diagram of the pulley assembly in the four-bracket trolley of the quay crane of the utility model.

detailed description

In order to make the above-mentioned purposes, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, so the utility model is not limited by the specific embodiments disclosed below limit.

Fig. 1 is the winding arrangement diagram of the four-bracket trolley of the quay crane of the utility model. Fig. 2 is a working principle diagram of the head pulley block in the four-bracket trolley of the quay crane of the utility model. Fig. 3 is a working principle diagram of the pulley assembly in the four-bracket trolley of the quay crane of the utility model.

As shown in Figures 1 to 3, one embodiment of the utility model discloses a four-carriage trolley for quayside cranes, which includes a first landside carriage trolley 10, a second landside carriage trolley 20, a first landside carriage trolley, The sea survey bracket trolley 30, the second sea survey bracket trolley 40, two sets of tensioning oil cylinders 60 and two reels 50, the reels 50 are placed in the machine room. Wherein, each reel 50 is provided with a first steel wire rope 51 and a second steel wire rope 52, the first steel wire rope 51 is connected with the first ocean survey bracket trolley 30 after being redirected by the head pulley block 70, and the second steel wire rope 52 is passed through the tail pulley block 71 is redirected to be connected with the first landside bracket trolley 10, and each tensioning oil cylinder 60 is connected with the corresponding tail pulley block 71.

Here, the first landside bracket trolley 10 and the second landside bracket trolley 20 are connected by a third wire rope 53 . The first ocean survey bracket trolley 30 is connected to the second ocean survey bracket trolley 40 through a fourth wire rope 54 . The second land side bracket trolley 20 is connected to the second marine survey bracket trolley 40 through a fifth wire rope 55 .

Further preferably, the first sea side bracket trolley 30 is provided with a first pulley assembly 72, one end of the first wire rope 51 is connected to the corresponding reel 50, and the other end passes through the head pulley block 70 and the first pulley assembly 72 in sequence and then fixed To the head wire rope fastening point 80 , the head wire rope fastening point 80 described here is located on the object outside the first ocean survey bracket trolley 30 . Similarly, the first land side bracket trolley 10 is provided with a second pulley assembly 73, one end of the second wire rope 52 is connected to the corresponding reel 50, and the other end passes through the tail pulley block 71 and the second pulley assembly 73 successively and is fixed to the At the tail wire rope securing point 81 , the tail wire rope securing point 81 described here is located on an object outside the first landside carriage trolley 10 .

In addition, a set of third pulley assemblies 74 are respectively provided at both ends of the first landside carriage trolley 10, and one end of the third wire rope 53 is fixed to the first wire rope tie-down point on the second landside carriage trolley 20. 82, and the other end passes through the third pulley assembly 74 and is fixed to the second wire rope fastening point 83, the second wire rope fastening point 83 described here is located on the object outside the second landside carriage trolley 20.

In the same way, a set of fourth pulley assembly 75 is respectively arranged at both ends of the first ocean survey bracket trolley 30, and one end of the fourth wire rope 54 is fixed to the third wire rope fastening point on the second ocean survey bracket trolley 40 At 84, the other end passes through the fourth pulley assembly 75 and is fixed to the fourth wire rope fastening point 85. The fourth steel wire rope fastening point 85 described here is located on the object outside the second sea side bracket trolley 40.

Further, two sets of fifth pulley assembly 76 are also provided on the second ocean surveying carriage trolley 40, and one end of the fifth steel wire rope 55 is fixed to the fifth steel rope fastening point on the second land side carriage trolley 20 86, the other end passes through two sets of the fifth pulley assembly 76 and is fixed to the sixth wire rope fastening point 87 on the second landside carriage trolley 20.

As mentioned above, the winding system of the four-bracket trolley of the quay crane of the utility model is arranged symmetrically with respect to the center line of the girder. It utilizes the deceleration principle of the double pulley block as shown in FIG. 2 , so that the speed of the first marine survey bracket trolley 30 is half of the speed of the first wire rope 51 . The speed of the first landside carriage trolley 10 is half the speed of the second wire rope 52 . The deceleration principle of the single pulley block shown in FIG. 3 makes the speed of the first landside carriage trolley 10 half that of the second landside carriage trolley 20 . The speed of the first ocean survey bracket car 30 is half of that of the second ocean survey bracket car 40 . And the speed of the second landside carriage dolly 20 is equal to the speed of the second ocean survey carriage dolly 40 .

The purpose of the utility model four-bracket trolley for quay cranes is to provide a winding scheme for a new type of quay crane bracket, which uses two bracket trolleys with different speeds on the sea and land sides (that is, the four-trolley mentioned in this article). Trolley) to support the hoisting and winding of the quay bridge, the winding of the trolley and its own winding wire rope, and shorten the span of the wire rope by increasing the number of bracket trolleys, thereby reducing the suspension of the wire rope. At the same time, an independent drive system is added in the machine room of the quay crane, so that the carriage trolley can run independently without the traction of the main trolley.

The characteristics of the four-bracket trolley for the quayside bridge of the utility model are:

1. Different from the general winding form of the main trolley, the four-trolley winding has its own independent drive system, which makes the adjustment of the running speed of the carriage trolley more flexible. As shown in the accompanying drawings, the speed of the first wire rope 51 and the second wire rope 52 connected to the reel 50 of the drive system can be directly set by the speed of the drive motor of the reel 50 .

2. Cleverly use the change of pulley block multiplier to achieve the purpose of increasing and decreasing the speed of the steel wire rope, so that the speed of the steel wire rope can be controlled, and the carriage trolley and trolley can also run in an orderly manner. After setting the speed V of the first wire rope 51 and the second wire rope 52 drawn from the drive system, other wire rope speeds can be controlled by changing the ratio of the pulley block. As in the winding scheme in the accompanying drawings, the speeds of the first landside carriage dolly 10 and the first seaside carriage 30 are reduced to 1/2V, and the second seaside carriage 40 and the second landside carriage Between the trolley 20 and the corresponding first sea-survey bracket trolley 30 and the first land-side bracket trolley 10, the speed is doubled to V through movable pulleys.

Three or four-bracket trolleys have a lot of steel wire ropes wrapped around them. For example, there are 9 steel wire ropes in the attached drawing, plus the lifting winding steel wire ropes of the quay bridge on the outside and the winding steel wire ropes of the main trolley on the inside. Arranged in horizontal grading and other ways to avoid entanglement, interference and hooking between wire ropes.

To sum up, the four-bracket trolley of the quayside crane of the utility model effectively controls the speed of the bracket trolley by rationally arranging the pulley block and the wire rope, and adds an independent drive system to realize the winding innovation of the four-bracket trolley of the quayside bridge. Designed to meet the application requirements of large and even super large quayside cranes.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (10)

1. A four-carriage dolly of a quay bridge, is characterized in that, the four-carriage dolly of said quay bridge comprises a first landside carriage dolly, a second landside carriage dolly, a first ocean-surveying carriage dolly, a second landside carriage dolly, Sea survey bracket trolley, two sets of tensioning oil cylinders and two reels, each reel is provided with a first steel wire rope and a second steel wire rope, and the first steel wire rope is redirected to the second steel wire rope through the head pulley block. A sea survey bracket trolley is connected, the second steel wire rope is connected to the first landside bracket trolley through the rear pulley block redirection, and each tensioning oil cylinder is connected to the corresponding tail pulley block; The first landside bracket trolley is connected to the second landside bracket trolley through a third wire rope; The first ocean survey bracket trolley is connected to the second ocean survey bracket trolley through a fourth wire rope; The second landside bracket trolley is connected to the second marine survey bracket trolley through a fifth steel wire rope. 2. The four-bracket trolley of the quay crane as claimed in claim 1, wherein the first sea-side bracket trolley is provided with a first pulley assembly, and one end of the first steel wire rope is connected to the corresponding coil. the other end of which passes through the head pulley block and the first pulley in sequence and is fixed to the head wire rope fastening point after assembly, and the head wire rope fastening point is located outside the first ocean survey bracket trolley on the object. 3. The four-carriage trolley of the quay crane as claimed in claim 2, wherein the first landside carriage trolley is provided with a second pulley assembly, and one end of the second steel wire rope is connected to the corresponding coil. The other end is passed through the tail pulley block and the second pulley in sequence and fixed to the tail wire rope fastening point after being assembled, and the tail wire rope fastening point is located on the object outside the first landside bracket trolley. 4. The four-bracket trolley of the quay crane as claimed in claim 1, wherein a set of third pulley assembly is respectively arranged at the two ends of the first landside bracket trolley, and one end of the third wire rope is fixed to It is located at the first wire rope fastening point on the second landside bracket trolley, and the other end is assembled through the third pulley and fixed to the second wire rope fastening point. The second steel wire rope fastening point is located at The object on the outside of the second landside carriage dolly. 5. The four-cradle trolley of the quay crane as claimed in claim 1, wherein a set of fourth pulley assembly is respectively arranged at the two ends of the first ocean survey bracket trolley, and one end of the fourth steel wire rope is fixed to Located at the third wire rope fastening point on the second ocean survey bracket trolley, the other end is assembled through the fourth pulley and fixed to the fourth wire rope fastening point, and the fourth steel wire rope fastening point is located at Objects on the outside of the second sea side bracket dolly. 6. The four-cradle trolley of the quay crane as claimed in claim 1, characterized in that, two sets of fifth pulley assemblies are also arranged on the second marine survey bracket trolley, and one end of the fifth steel wire rope is fixed to the At the fifth wire rope fastening point on the second landside bracket trolley, the other end passes through two sets of the fifth pulley and is fixed to the sixth wire rope system on the second landside bracket trolley fixed point. 7. The four-cradle trolley of the quay crane as claimed in claim 3, wherein the speed of the first marine survey trolley is half of the speed of the first wire rope, and the first landside bracket The speed of the trolley is half of the speed of the second wire rope. 8. The four-carriage trolley of the quay crane according to claim 4, wherein the speed of the first land-side carriage trolley is half of that of the second land-side carriage trolley. 9. The four-cradle trolley for the shore crane as claimed in claim 5, wherein the speed of the first marine survey trolley is half of that of the second marine survey trolley. 10. The four-carriage trolley of the quay crane according to any one of claims 1-9, wherein the speed of the second land-side carriage trolley is equal to the speed of the second sea-survey carriage trolley.