CN113003431A

CN113003431A - Energy-saving crossing type shore bridge using counterweight

Info

Publication number: CN113003431A
Application number: CN201911315639.8A
Authority: CN
Inventors: 赵迎九; 肖强; 郭树旺; 郑雪峰; 王悦民; 童民慧; 高翔; 白建明
Original assignee: Huadian Heavy Industries Co Ltd
Current assignee: Huadian Lanke Technology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2021-06-22

Abstract

The invention discloses a penetrating shore bridge using a counterweight for energy conservation. The torque acted on the upper trolley energy-saving hoisting mechanism by the upper trolley balance component is opposite to the torque acted on the upper trolley energy-saving hoisting mechanism by the upper trolley lifting appliance. One end of the lower trolley energy-saving steel wire rope is led out from the lower trolley energy-saving hoisting mechanism, and the other end of the lower trolley energy-saving steel wire rope bypasses the lower trolley balance assembly and is fixedly connected with the shore bridge supporting structure. The torque acting on the lower trolley energy-saving hoisting mechanism by the lower trolley balance component is opposite to the torque acting on the lower trolley energy-saving hoisting mechanism by the lower trolley lifting appliance. According to the invention, under the condition that the operation parameters of the traversing shore bridge are not reduced, the energy consumption is reduced by 25%, meanwhile, various devices and steel wire ropes are not interfered with each other, and the traversing shore bridge can be ensured to operate normally and efficiently.

Description

Energy-saving crossing type shore bridge using counterweight

Technical Field

The invention relates to the technical field of container handling equipment at ports and docks, in particular to a crossing type shore bridge applying counterweight energy conservation.

Background

With the continuous deepening of the globalization of economy, the growth rate of international trade is faster and faster, and the global goods trade volume is also increased rapidly. The advantages of large dependence on transportation volume and low cost of water transportation become the most important transportation mode of international freight transportation, and the water transportation is rapidly developed along with the increase of the transportation volume, wherein the most obvious embodiment is the large-scale and large-scale container ship, at present, the ultra-large container ship with the container loading capacity reaching 24000TEU is already put into use, and the higher requirement is also put forward to port and wharf. The port wharf is an important hub for water transportation and land transportation, and is an important cargo collection and distribution place, and the container ship directly finishes loading and unloading at the port wharf, so that the improvement of the working efficiency of the port wharf is more and more important under the background of increased transportation volume and large-scale container ships.

The most important container loading and unloading equipment of the port and pier is a shore bridge, the shore bridge is arranged on the shore of the port and directly operates a container ship to bear most of container loading and unloading tasks, the loading and unloading efficiency of the shore bridge directly determines the working efficiency of the port and pier, and meanwhile, the energy consumption cost of the shore bridge also influences the operation cost of the port and pier, so that the energy consumption for controlling the shore bridge while improving the working efficiency of the shore bridge is the development direction of the shore bridge.

The crossing type shore bridge is an efficient shore bridge, the number of trolleys is increased on the basis of the traditional shore bridge, the upper trolley and the lower trolley operate simultaneously, the upper trolley passes through the frame of the lower trolley, the loading and unloading efficiency of a container is greatly improved, and the energy consumption of the crossing type shore bridge is greatly increased while the efficiency is improved. Therefore, the crossing shore bridge needs to control energy consumption, but compared with the traditional shore bridge, the crossing shore bridge is more complex in winding mode of the steel wire rope and structure of the shore bridge due to the addition of one trolley, and the difficulty in arrangement of an energy-saving system is higher.

Disclosure of Invention

The invention aims to provide a crossing type shore bridge using a counterweight to save energy, which can reduce the energy consumption of a crossing type shore bridge for hoisting and taking a container, save the operation cost of a port and a wharf and improve the economic benefit while improving the container loading and unloading efficiency by using two trolleys. And the energy-saving system is simple and reliable, the newly added energy-saving system in the crossing shore bridge does not interfere with the original various devices and structures of the shore bridge, and the operation is stable.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an use crossing formula bank bridge of balanced heavy energy-conservation, includes bank bridge bearing structure, locates two parallel bank bridge girders on the bank bridge bearing structure, walks last dolly and lower dolly on the bank bridge girder, goes up the dolly hoist, lower dolly hoist and locate the bank bridge computer lab of bank bridge girder top. The upper trolley and the upper trolley lifting appliance in the crossing type shore bridge pass through the frame of the lower trolley, the two trolleys run simultaneously without mutual influence, and the working efficiency of the shore bridge is greatly improved.

The crossing shore bridge using the counterweight energy conservation further comprises an upper trolley energy-saving lifting system and a lower trolley energy-saving lifting system, and is used for completing the lifting action of an upper trolley lifting appliance and a lower trolley lifting appliance and reducing the energy consumption for lifting and taking containers. The upper trolley energy-saving lifting system comprises an upper trolley energy-saving lifting mechanism, an upper trolley lifting steel wire rope, an upper trolley energy-saving steel wire rope and an upper trolley balancing component, wherein one end of the upper trolley lifting steel wire rope is led out of the upper trolley energy-saving lifting mechanism, and the other end of the upper trolley lifting steel wire rope extends to an upper trolley lifting appliance. One end of the upper trolley energy-saving steel wire rope is led out from the upper trolley energy-saving lifting mechanism, and the other end of the upper trolley energy-saving steel wire rope bypasses the upper trolley balance assembly and is fixedly connected with the shore bridge supporting structure. The torque of the upper trolley balance assembly acting on the upper trolley energy-saving lifting mechanism through the upper trolley energy-saving steel wire rope is opposite to the torque of the upper trolley lifting appliance acting on the upper trolley energy-saving lifting mechanism through the upper trolley lifting steel wire rope, and a part of energy consumption is offset by using the opposite torque, so that energy conservation and consumption reduction are realized.

The lower trolley energy-saving lifting system comprises a lower trolley energy-saving lifting mechanism, a lower trolley lifting steel wire rope, a lower trolley energy-saving steel wire rope and a lower trolley balancing component, wherein one end of the lower trolley lifting steel wire rope is led out of the lower trolley energy-saving lifting mechanism, and the other end of the lower trolley lifting steel wire rope extends to a lower trolley lifting appliance. One end of the lower trolley energy-saving steel wire rope is led out from the lower trolley energy-saving lifting mechanism, and the other end of the lower trolley energy-saving steel wire rope bypasses the lower trolley balance assembly and is fixedly connected with the shore bridge supporting structure. The torque direction of the lower trolley balance assembly acting on the lower trolley energy-saving hoisting mechanism through the lower trolley energy-saving steel wire rope is opposite to the torque direction of the lower trolley lifting appliance acting on the lower trolley energy-saving hoisting mechanism through the lower trolley lifting steel wire rope. The upper trolley energy-saving lifting system is used for realizing lifting of the upper trolley lifting appliance and energy conservation and consumption reduction, the lower trolley energy-saving lifting system is used for realizing lifting of the lower trolley lifting appliance and energy conservation and consumption reduction, and equipment in the two parts of systems operates independently and does not interfere with each other.

In the crossing type shore bridge using the counterweight for energy saving, the upper trolley energy-saving hoisting mechanism comprises two upper trolley hoisting motors, an upper trolley hoisting reduction box and two upper trolley hoisting drums, wherein the two upper trolley hoisting motors are in transmission connection with the upper trolley hoisting reduction box, the two upper trolley hoisting motors are symmetrically arranged on two sides of the upper trolley hoisting reduction box, the two upper trolley hoisting drums are in transmission connection with the upper trolley hoisting reduction box, and the two upper trolley hoisting drums are coaxially arranged and symmetrically arranged on two sides of the upper trolley hoisting reduction box. The number of the upper trolley lifting steel wire ropes is two, and each upper trolley lifting steel wire rope is wound on a different upper trolley lifting winding drum. In order to prevent two ends of the upper trolley lifting appliance from ascending or descending simultaneously and prevent the upper trolley lifting appliance from inclining or even overturning, the invention is provided with two upper trolley lifting drums and two upper trolley lifting steel wire ropes, wherein one ends of the two upper trolley lifting steel wire ropes far away from the upper trolley lifting drums extend to two sides of the upper trolley lifting appliance respectively and are symmetrically arranged on two sides of the upper trolley lifting reduction box.

The upper trolley balancing component comprises an upper trolley balancing weight, a group of upper trolley balancing movable pulley blocks and a group of upper trolley balancing fixed pulley blocks, the upper trolley balancing movable pulley blocks are fixedly connected with the upper trolley balancing weight, the upper trolley balancing fixed pulley blocks are fixedly connected with the shore bridge supporting structure, and the upper trolley balancing fixed pulley blocks are positioned right above the upper trolley balancing movable pulley blocks. The energy-saving steel wire ropes of the upper trolley are two in number, each energy-saving steel wire rope of the upper trolley is wound on a different upper trolley lifting winding drum, and one end, far away from the upper trolley lifting winding drum, of each energy-saving steel wire rope of the upper trolley is fixedly connected with the shore bridge supporting structure after bypassing the upper trolley balance fixed pulley block and the upper trolley balance movable pulley block. Each upper trolley lifting winding drum is wound with an upper trolley energy-saving steel wire rope and an upper trolley lifting steel wire rope, and the upper trolley counterweight is lifted or lowered under the action of the upper trolley lifting winding drum and the upper trolley energy-saving steel wire rope.

The lower trolley energy-saving hoisting mechanisms are divided into two groups, each group of lower trolley energy-saving hoisting mechanisms comprises a lower trolley hoisting motor, a lower trolley hoisting reduction box and a lower trolley hoisting drum, the lower trolley hoisting motor, the lower trolley hoisting reduction box and the lower trolley hoisting drum in each group of lower trolley energy-saving hoisting mechanisms are sequentially in transmission connection, and the two groups of lower trolley energy-saving hoisting mechanisms are horizontally and symmetrically arranged on two sides of the axis of the two parallel shore bridge girders. The lifting device comprises a lower trolley lifting steel wire rope, two lower trolley lifting steel wire ropes and two lifting mechanisms, wherein each lower trolley lifting steel wire rope is wound on a different lower trolley lifting winding drum, and one end of each lower trolley lifting steel wire rope, which is far away from the corresponding lower trolley lifting winding drum, extends to two sides of the lower trolley lifting appliance respectively. The upper trolley and the upper trolley lifting appliance in the crossing type shore bridge need to be capable of passing through the lower trolley frame, so that the lower trolley is large in width and walks on the outer side of a girder of the shore bridge. The energy-saving hoisting mechanisms of the lower trolley are provided with two groups, two ends of a lower trolley lifting appliance are respectively controlled, otherwise, the length of a hoisting drum of the lower trolley is too large, so that the strength of the hoisting drum of the lower trolley is reduced, and the running safety of the crossing shore bridge is influenced.

The lower trolley balance assembly comprises a lower trolley balance weight, a group of lower trolley balance movable pulley blocks and a group of lower trolley balance fixed pulley blocks, the lower trolley balance movable pulley blocks are fixedly connected with the lower trolley balance weight, the lower trolley balance fixed pulley blocks are fixedly connected with the shore bridge supporting structure, and the lower trolley balance fixed pulley blocks are positioned right above the lower trolley balance movable pulley blocks. The energy-saving steel wire ropes of the lower trolley are two in number, each energy-saving steel wire rope of the lower trolley is wound on a lower trolley lifting reel in different energy-saving lifting mechanisms of the lower trolley, and one end, far away from the lower trolley lifting reel, of each energy-saving steel wire rope of the lower trolley is fixedly connected with the shore bridge supporting structure after bypassing a lower trolley balance fixed pulley block and a lower trolley balance movable pulley block.

The energy-saving steel wire rope of the upper trolley is led out from a lifting winding drum of the upper trolley, and extends to the balance fixed pulley block of the upper trolley after bypassing the bend pulley. The lower trolley energy-saving steel wire rope is led out from a lower trolley lifting winding drum, bypasses the bend pulley and then extends to the lower trolley balance fixed pulley block. The direction-changing pulley can provide conditions for adjusting the positions of the upper trolley balance assembly and the lower trolley balance assembly, change the extending directions of the upper trolley energy-saving steel wire rope and the lower trolley energy-saving steel wire rope, avoid mutual interference or interference with an original steel wire rope in the crossing shore bridge, and adjust the upper trolley balance assembly and the lower trolley balance assembly to proper positions.

In the penetrating shore bridge using the counterweight for energy saving, the upper trolley balance fixed pulley block comprises a plurality of fixed pulleys coaxially arranged, the upper trolley balance movable pulley block comprises a plurality of movable pulleys coaxially arranged, and the number of the pulleys in the upper trolley balance fixed pulley block is the same as that of the pulleys in the upper trolley balance movable pulley block. The energy-saving steel wire rope of the upper trolley is led out from the lifting winding drum of the upper trolley, firstly bypasses one fixed pulley in the balance fixed pulley group of the upper trolley, then extends downwards to the balance movable pulley group of the upper trolley, bypasses one movable pulley in the balance movable pulley group of the upper trolley, then extends upwards to the balance fixed pulley group of the upper trolley, and finally repeatedly bypasses different fixed pulleys and movable pulleys to be fixedly connected with the shore bridge supporting structure. The arrangement mode can change the moving distance range of the upper trolley counterweight, the number of the movable pulleys in the movable pulley block of the upper trolley is more, the moving distance range of the upper trolley counterweight is smaller, the smaller moving distance range of the upper trolley counterweight is selected, the moving stability of the upper trolley counterweight can be improved, and the stability of the quayside crane structure is facilitated.

The lower trolley balance fixed pulley block comprises a plurality of fixed pulleys which are coaxially arranged, the lower trolley balance movable pulley block comprises a plurality of movable pulleys which are coaxially arranged, and the number of the pulleys in the lower trolley balance fixed pulley block is the same as that of the pulleys in the lower trolley balance movable pulley block. The lower trolley energy-saving steel wire rope is led out from a lower trolley lifting winding drum, firstly bypasses one fixed pulley in a lower trolley balance fixed pulley group, then extends downwards to a lower trolley balance movable pulley group, bypasses one movable pulley in the lower trolley balance movable pulley group, then extends upwards to the lower trolley balance fixed pulley group, and finally is fixedly connected with the shore bridge supporting structure after sequentially bypassing different fixed pulleys and movable pulleys.

In the crossing type shore bridge using the counterweight for energy saving, the upper trolley lifting steel wire rope and the upper trolley energy-saving steel wire rope are wound at the same position of the upper trolley lifting winding drum, and the winding directions of the upper trolley lifting steel wire rope and the upper trolley energy-saving steel wire rope are opposite. The upper trolley lifting steel wire rope and the upper trolley energy-saving steel wire rope are wound at the same position to reduce the length of the upper trolley lifting winding drum and prevent the upper trolley lifting winding drum from being damaged under the action of the upper trolley lifting steel wire rope and the upper trolley energy-saving steel wire rope due to the strength reduction of the upper trolley lifting winding drum. The winding directions of the upper trolley lifting steel wire rope and the upper trolley energy-saving steel wire rope are opposite, so that the two steel wire ropes are prevented from interfering with each other. The lower trolley lifting steel wire rope and the lower trolley energy-saving steel wire rope are wound at the same position of the lower trolley lifting winding drum, and the winding directions of the lower trolley lifting steel wire rope and the lower trolley energy-saving steel wire rope are opposite.

The energy-saving mode in the crossing shore bridge using the counterweight for energy saving is divided into two arrangement forms according to the number of the upper trolley balance assemblies and the lower trolley balance assemblies.

In one arrangement form, the upper trolley balance assemblies are divided into two groups, the two groups of upper trolley balance assemblies are symmetrically arranged on the outer sides of the two parallel shore bridge girders, and each upper trolley energy-saving steel wire rope is fixedly connected with the shore bridge supporting structure after bypassing one different upper trolley balance assembly.

The lower trolley balance assemblies are two groups, the two groups of lower trolley balance assemblies are symmetrically arranged on the outer sides of the two parallel shore bridge girders, and each lower trolley energy-saving steel wire rope is fixedly connected with the shore bridge supporting structure after bypassing one different lower trolley balance assembly. The upper trolley balance component and the lower trolley balance component are both two and are symmetrically arranged, so that the stress of the crossing shore bridge is balanced, and the structural stability of the crossing shore bridge is facilitated.

In another arrangement form of the energy-saving mode in the penetrating shore bridge applying the energy-saving counterweight, the upper trolley balancing assemblies are provided with one group, the two upper trolley energy-saving steel wire ropes are changed in direction by the direction changing pulleys and extend to the upper trolley balancing assemblies, and each upper trolley energy-saving steel wire rope bypasses different fixed pulleys in the upper trolley balancing fixed pulley group and different movable pulleys in the upper trolley balancing movable pulley group and is fixedly connected with the shore bridge supporting structure. In the arrangement form, the two energy-saving steel wire ropes of the upper trolley act on the balance component of the upper trolley together, and the two steel wire ropes are not interfered with each other.

The lower trolley balance assemblies are provided with one group, the two lower trolley energy-saving steel wire ropes are changed in direction by the direction-changing pulleys and extend to the lower trolley balance assemblies, and each lower trolley energy-saving steel wire rope is fixedly connected with the shore bridge supporting structure after bypassing different fixed pulleys in the lower trolley balance fixed pulley group and different movable pulleys in the lower trolley balance movable pulley group. This kind of arrangement form only needs dolly balancing unit and the dolly balancing unit down on one, goes up the dolly and counter weight and can arrange the same one side at bank bridge girder with lower dolly counter weight, also can arrange the both sides at bank bridge girder, when the dolly counter weight is balanced and the dolly counter weight is down arranged the both sides at bank bridge girder, can reach bank bridge atress balance, is applicable to the great condition of bank bridge all ring edge border influence.

The torque of the upper trolley balance assembly acting on the upper trolley lifting drum through the upper trolley energy-saving steel wire rope is equal to the torque of the upper trolley lifting appliance and the suspended empty container acting on the upper trolley lifting drum through the upper trolley lifting steel wire rope. The torque of the lower trolley balance assembly acting on the lower trolley lifting drum through the lower trolley energy-saving steel wire rope is equal to the torque of the lower trolley lifting appliance and the suspended empty container acting on the lower trolley lifting drum through the lower trolley lifting steel wire rope.

The crossing type shore bridge is arranged on the side of a wharf shore, the crossing type shore bridge is large in height, and the upper trolley counterweight and the lower trolley counterweight are easily influenced by the external environment and shake. Therefore, the balance weight of the upper trolley and the balance weight of the lower trolley are both positioned in the cavity of the shore bridge supporting structure, so that the influence of the environment can be reduced, and the running safety of the crossing shore bridge is improved.

The energy-saving hoisting mechanism of the upper trolley and the energy-saving hoisting mechanism of the lower trolley are uniformly distributed in a shore bridge machine room, the invention also comprises a floating coupling, two ends of the floating coupling are respectively in transmission connection with lower trolley hoisting reduction boxes in the two groups of energy-saving hoisting mechanisms of the lower trolley, and the floating coupling is used for synchronizing the hoisting drums of the lower trolleys in the two energy-saving hoisting mechanisms of the lower trolley, so that the condition that the hoisting tools of the lower trolley cannot be hoisted and lowered normally due to different rotating speeds of the hoisting drums of the two lower trolleys is prevented. The shore bridge machine room is horizontally and symmetrically arranged above the shore bridge girder by taking the axes of the two parallel shore bridge girders as axes. The energy-saving hoisting mechanisms of the upper trolley are horizontally and symmetrically arranged on two sides of the axes of the two parallel shore bridge girders.

Compared with the prior art, the invention has the advantages that: the energy-saving system is additionally arranged in the crossing type shore bridge, the energy consumption of lifting containers by an upper trolley lifting appliance and a lower trolley lifting appliance is reduced by using the counterweight under the condition that the running parameters of the crossing type shore bridge are not reduced, the energy-saving effect reaches 25 percent, the running cost of the crossing type shore bridge is reduced, and the economic benefit of a port and a wharf is improved. Meanwhile, various devices and steel wire ropes in the crossing type shore bridge are reasonably arranged and do not interfere with each other, the existing devices and steel wire ropes in the crossing type shore bridge are not influenced, and the crossing type shore bridge can efficiently and normally run.

Drawings

FIG. 1 is a schematic structural diagram of an energy-saving lifting system of an upper trolley and an energy-saving lifting system of a lower trolley in the invention;

FIG. 2 is a schematic structural view of an upper trolley energy-saving hoisting system and an upper trolley spreader in the present invention;

FIG. 3 is a schematic structural view of an energy-saving hoisting system for a lower trolley and a lower trolley spreader for the lower trolley in the invention;

FIG. 4 is a schematic winding diagram of an energy-saving steel wire rope when the upper trolley balance assembly and the lower trolley balance assembly are both two;

FIG. 5 is a schematic structural view of the present invention with both the upper and lower carriage assemblies in one configuration;

FIG. 6 is a schematic winding diagram of an energy-saving steel wire rope when both an upper trolley balance assembly and a lower trolley balance assembly are one;

FIG. 7 is a top view of the energy saving hoisting mechanism of the upper trolley of the present invention;

FIG. 8 is a top view of the energy saving hoisting mechanism of the lower trolley of the present invention;

fig. 9 is a front view of the crossing type shore bridge of the present invention.

The meaning of the reference numerals: 1-shore bridge supporting structure, 2-shore bridge girder, 3-upper trolley, 4-lower trolley, 5-upper trolley lifting appliance, 6-lower trolley lifting appliance, 7-shore bridge machine room, 8-upper trolley energy-saving lifting mechanism, 9-upper trolley lifting wire rope, 10-upper trolley energy-saving wire rope, 11-upper trolley balancing component, 12-lower trolley energy-saving lifting mechanism, 13-lower trolley lifting wire rope, 14-lower trolley energy-saving wire rope, 15-lower trolley balancing component, 16-upper trolley lifting motor, 17-upper trolley lifting reduction box, 18-upper trolley lifting reel, 19-upper trolley balancing weight, 20-upper trolley balancing movable pulley block, 21-upper trolley balancing fixed pulley block, 22-lower trolley lifting motor, 23-lower trolley lifting reduction box, 24-lower trolley lifting reel, 25-lower trolley balance weight, 26-lower trolley balance movable pulley block, 27-lower trolley balance fixed pulley block, 28-direction-changing pulley and 29-floating coupling.

The invention is further described with reference to the following figures and detailed description.

Detailed Description

Example 1 of the invention: as shown in fig. 9, a crossing shore crane using a counterweight to save energy comprises a shore bridge supporting structure 1, two parallel shore bridge girders 2 arranged on the shore bridge supporting structure 1, an upper trolley 3 and a lower trolley 4 walking on the shore bridge girders 2, an upper trolley hanger 5, a lower trolley hanger 6 and a shore bridge machine room 7 arranged above the shore bridge girders 2. The upper trolley and the lower trolley can run simultaneously without mutual interference, and the working efficiency of the shore bridge is greatly improved.

As shown in fig. 1, in order to reduce energy consumption of the crossing shore bridge, an upper trolley energy-saving lifting system and a lower trolley energy-saving lifting system are further provided in the embodiment. As shown in fig. 2, the upper trolley energy-saving hoisting system comprises an upper trolley energy-saving hoisting mechanism 8, an upper trolley hoisting steel wire rope 9, an upper trolley energy-saving steel wire rope 10 and an upper trolley balancing component 11, wherein one end of the upper trolley hoisting steel wire rope 9 is led out from the upper trolley energy-saving hoisting mechanism 8, and the other end of the upper trolley hoisting steel wire rope 9 extends to the upper trolley lifting appliance 5; one end of the upper trolley energy-saving steel wire rope 10 is led out from the upper trolley energy-saving hoisting mechanism 8, and the other end of the upper trolley energy-saving steel wire rope 10 bypasses the upper trolley balance component 11 and is fixedly connected with the shore bridge supporting structure 1; the torque acted on the upper trolley energy-saving hoisting mechanism 8 by the upper trolley balance component 11 through the upper trolley energy-saving steel wire rope 10 is opposite to the torque acted on the upper trolley energy-saving hoisting mechanism 8 by the upper trolley hoisting device 5 through the upper trolley hoisting steel wire rope 9 in direction, and the energy consumption of hoisting and taking the container is reduced by using the torque in opposite direction.

As shown in fig. 3, the lower trolley energy-saving hoisting system in this embodiment includes a lower trolley energy-saving hoisting mechanism 12, a lower trolley hoisting steel wire rope 13, a lower trolley energy-saving steel wire rope 14, and a lower trolley balancing component 15, wherein one end of the lower trolley hoisting steel wire rope 13 is led out from the lower trolley energy-saving hoisting mechanism 12, and the other end of the lower trolley hoisting steel wire rope 13 extends to the lower trolley lifting appliance 6; one end of the lower trolley energy-saving steel wire rope 14 is led out of the lower trolley energy-saving hoisting mechanism 12, and the other end of the lower trolley energy-saving steel wire rope 14 bypasses the lower trolley balance component 15 and is fixedly connected with the shore bridge supporting structure 1; the torque of the lower trolley balance component 15 acting on the lower trolley energy-saving hoisting mechanism 12 through the lower trolley energy-saving steel wire rope 14 is opposite to the torque of the lower trolley lifting appliance 6 acting on the lower trolley energy-saving hoisting mechanism 12 through the lower trolley lifting steel wire rope 13. The energy-saving lifting system of the upper trolley and the energy-saving lifting system of the lower trolley in the embodiment can independently run without mutual interference, and the container is lifted to finish lifting action and energy conservation and consumption reduction are simultaneously carried out.

As shown in fig. 1 and 2, the upper trolley energy-saving hoisting mechanism 8 in this embodiment includes two upper trolley hoisting motors 16, an upper trolley hoisting reduction box 17 and two upper trolley hoisting drums 18, the two upper trolley hoisting motors 16 are both in transmission connection with the upper trolley hoisting reduction box 17, the two upper trolley hoisting motors 16 are symmetrically arranged on both sides of the upper trolley hoisting reduction box 17, the two upper trolley hoisting drums 18 are both in transmission connection with the upper trolley hoisting reduction box 17, and the two upper trolley hoisting drums 18 are coaxially arranged and symmetrically arranged on both sides of the upper trolley hoisting reduction box 17. The number of the upper trolley lifting steel wire ropes 9 is two, each upper trolley lifting steel wire rope 9 is wound on a different upper trolley lifting winding drum 18, and one ends of the two upper trolley lifting steel wire ropes 9, which are far away from the upper trolley lifting winding drums 18, extend to two sides of the upper trolley lifting appliance 5 respectively, so that the upper trolley lifting appliance is guaranteed to be stressed in balance and stably ascended or descended.

As shown in fig. 2, the upper trolley balancing assembly 11 includes an upper trolley balancing weight 19, a group of upper trolley balancing movable pulley blocks 20 and a group of upper trolley balancing fixed pulley blocks 21, the upper trolley balancing movable pulley blocks 20 are fixedly connected with the upper trolley balancing weight 19, the upper trolley balancing fixed pulley blocks 21 are fixedly connected with the shore bridge supporting structure 1, and the upper trolley balancing fixed pulley blocks 21 are located right above the upper trolley balancing movable pulley blocks 20. The number of the upper trolley energy-saving steel wire ropes 10 is two, each upper trolley energy-saving steel wire rope 10 is wound on a different upper trolley lifting drum 18, one end of each upper trolley energy-saving steel wire rope 10, far away from the upper trolley lifting drum 18, bypasses an upper trolley balance fixed pulley block 21 and an upper trolley balance movable pulley block 20 and then is fixedly connected with the shore bridge supporting structure 1, and an upper trolley lifting steel wire rope 9 and an upper trolley energy-saving steel wire rope 10 are wound on each upper trolley lifting drum 18.

As shown in fig. 1 and 3, the energy-saving lower trolley hoisting mechanisms 12 described in this embodiment are divided into two groups, each group of energy-saving lower trolley hoisting mechanisms 12 includes a lower trolley hoisting motor 22, a lower trolley hoisting reduction box 23 and a lower trolley hoisting drum 24, the lower trolley hoisting motor 22, the lower trolley hoisting reduction box 23 and the lower trolley hoisting drum 24 in each group of energy-saving lower trolley hoisting mechanisms 12 are sequentially connected in a transmission manner, the two groups of energy-saving lower trolley hoisting mechanisms 12 are horizontally and symmetrically arranged on two sides of the axis of two parallel shore bridge girders 2, the width of the lower trolley 4 in this embodiment is large, if two lower trolley hoisting drums 24 are connected to the same lower trolley hoisting reduction box 23, the length of the lower trolley hoisting drum 24 needs to be extended to ensure that the lower trolley hoisting wire rope 13 can be smoothly wound, but the increase in length of the lower trolley hoisting drum 24 will cause the strength to decrease, under the action of the lower trolley lifting steel wire rope 13 and the lower trolley energy-saving steel wire rope 14, deformation is easy to occur, and the operation safety of the crossing shore bridge is influenced. The total number of the lower trolley lifting steel wire ropes 13 is two, each lower trolley lifting steel wire rope 13 is wound on a different lower trolley lifting winding drum 24, one end of each lower trolley lifting steel wire rope 13, far away from the lower trolley lifting winding drum 24, extends to two sides of the lower trolley lifting appliance 6 respectively, the gravity center of the lower trolley lifting appliance 6 is guaranteed to be stable, and the situations of inclination, even overturning or steel wire rope fracture and the like are prevented.

As shown in fig. 3, the lower trolley balance assembly 15 includes a lower trolley balance weight 25, a set of lower trolley balance movable pulley blocks 26 and a set of lower trolley balance fixed pulley blocks 27, the lower trolley balance movable pulley blocks 26 are fixedly connected with the lower trolley balance weight 25, the lower trolley balance fixed pulley blocks 27 are fixedly connected with the quay crane supporting structure 1, and the lower trolley balance fixed pulley blocks 27 are located right above the lower trolley balance movable pulley blocks 26. The number of the lower trolley energy-saving steel wire ropes 14 is two, each lower trolley energy-saving steel wire rope 14 is wound on a lower trolley lifting reel 24 in different lower trolley energy-saving lifting mechanisms 12, and one end of each lower trolley energy-saving steel wire rope 14, far away from the lower trolley lifting reel 24, bypasses a lower trolley balance fixed pulley block 27 and a lower trolley balance movable pulley block 26 and is fixedly connected with the shore bridge supporting structure 1.

As shown in fig. 1, the energy-saving steel wire rope 10 of the upper trolley is led out from the lifting drum 18 of the upper trolley, and extends to the balance fixed pulley block 21 of the upper trolley after bypassing the direction-changing pulley 28. The lower trolley energy-saving steel wire rope 14 is led out from a lower trolley lifting reel 24, bypasses a redirection pulley 28 and then extends to a lower trolley balance fixed pulley block 27. The direction-changing pulley 28 can adjust the extending direction of the upper trolley energy-saving steel wire rope 10 and the lower trolley energy-saving steel wire rope 14, so that the positions of the upper trolley balancing component 11 and the lower trolley balancing component 15 can be adjusted conveniently.

As shown in fig. 4, the upper trolley balancing fixed pulley group 21 comprises 4 coaxially arranged fixed pulleys, and the upper trolley balancing movable pulley group 20 comprises 4 coaxially arranged movable pulleys. The upper trolley energy-saving steel wire rope 10 is led out from the upper trolley lifting winding drum 18, firstly bypasses one fixed pulley in the upper trolley balance fixed pulley group 21, then extends downwards to the upper trolley balance movable pulley group 20, bypasses one movable pulley in the upper trolley balance movable pulley group 20, then extends upwards to the upper trolley balance fixed pulley group 21, sequentially bypasses different fixed pulleys and movable pulleys, and finally is fixedly connected with the shore bridge supporting structure 1.

As shown in fig. 4, the lower trolley balancing fixed pulley block 27 comprises 4 coaxially arranged fixed pulleys, and the lower trolley balancing movable pulley block 26 comprises 4 coaxially arranged movable pulleys. The lower trolley energy-saving steel wire rope 14 is led out from the lower trolley lifting winding drum 24, firstly bypasses one fixed pulley in the lower trolley balance fixed pulley block 27, then extends downwards to the lower trolley balance movable pulley block 26, bypasses one movable pulley in the lower trolley balance movable pulley block 26, then extends upwards to the lower trolley balance fixed pulley block 27, sequentially bypasses different fixed pulleys and movable pulleys, and finally is fixedly connected with the shore bridge supporting structure 1.

In this embodiment, the upper trolley lifting wire rope 9 and the upper trolley energy-saving wire rope 10 are wound at the same position of the upper trolley lifting drum 18, and the winding directions of the upper trolley lifting wire rope 9 and the upper trolley energy-saving wire rope 10 are opposite. The lower trolley lifting steel wire rope 13 and the lower trolley energy-saving steel wire rope 14 are wound at the same position of the lower trolley lifting winding drum 24, and the winding directions of the lower trolley lifting steel wire rope 13 and the lower trolley energy-saving steel wire rope 14 are opposite. The upper trolley lifting steel wire rope 9 and the upper trolley energy-saving steel wire rope 10 are wound at the same position of the upper trolley lifting winding drum, so that the length of the upper trolley lifting winding drum 18 can be reduced, the strength is improved, and the opposite winding directions are used for preventing the mutual interference and influence of the two steel wire ropes.

As shown in fig. 9, the upper trolley energy-saving hoisting mechanism 8 and the lower trolley energy-saving hoisting mechanism 12 in this embodiment are uniformly distributed in the shore bridge machine room 7, and the shore bridge machine room 7 is horizontally and symmetrically arranged above the shore bridge girder 2 by taking the axes of the two parallel shore bridge girders 2 as axes. As shown in fig. 8, the energy-saving lifting device further includes a floating coupling 29 in this embodiment, two ends of the floating coupling 29 are respectively in transmission connection with the lower trolley lifting reduction boxes 23 in the two lower trolley energy-saving lifting mechanisms 12, and the floating coupling 29 is used for ensuring that the rotating speeds of the lower trolley lifting drums 24 in the two lower trolley energy-saving lifting mechanisms 12 are consistent, so as to prevent the lower trolley lifting device 6 from being difficult to lift and even dangerous. The energy-saving hoisting mechanism 8 of the upper trolley in the embodiment is horizontally and symmetrically arranged on two sides of the axes of the two parallel shore bridge girders 2, so that the gravity center of the shore bridge machine room 7 is stable.

Example 2 of the invention: as shown in fig. 9, a crossing shore crane using a counterweight to save energy comprises a shore bridge supporting structure 1, two parallel shore bridge girders 2 arranged on the shore bridge supporting structure 1, an upper trolley 3 and a lower trolley 4 walking on the shore bridge girders 2, an upper trolley hanger 5, a lower trolley hanger 6 and a shore bridge machine room 7 arranged above the shore bridge girders 2. The upper trolley and the lower trolley can run simultaneously without mutual interference, and the working efficiency of the shore bridge is greatly improved.

As shown in fig. 1 and 2, the number of the upper trolley balance assemblies 11 in the embodiment is two, the two groups of upper trolley balance assemblies 11 are symmetrically arranged at the outer sides of two parallel shore bridge girders 2, and each upper trolley energy-saving steel wire rope 10 is fixedly connected with the shore bridge supporting structure 1 after bypassing a different upper trolley balance assembly 11.

As shown in fig. 1 and 3, the number of the lower trolley balance assemblies 15 in the embodiment is two, the two lower trolley balance assemblies 15 are symmetrically arranged at the outer sides of the two parallel shore bridge girders 2, and each lower trolley energy-saving steel wire rope 14 is fixedly connected with the shore bridge supporting structure 1 after bypassing a different lower trolley balance assembly 15. The upper trolley balancing weight 19 and the lower trolley balancing weight 25 are two in the embodiment, and are symmetrically arranged on the outer side of the shore bridge girder 2, so that the structure balance of the shore bridge can be guaranteed, and the potential safety hazard is avoided due to the fact that one side is too heavy. The winding mode of the upper trolley energy-saving steel wire rope 10 and the lower trolley energy-saving steel wire rope 14 at the balance component in the embodiment is shown in fig. 4.

In this embodiment, the torque of the upper trolley balance component 11 acting on the upper trolley lifting drum 18 through the upper trolley energy-saving steel wire rope 10 is equal to the torque of the upper trolley lifting appliance 5 and the suspended empty container acting on the upper trolley lifting drum 18 through the upper trolley lifting steel wire rope 9. The torque of the lower trolley balance assembly 15 acting on the lower trolley lifting drum 24 through the lower trolley energy-saving steel wire rope 14 is equal to the torque of the lower trolley lifting appliance 6 and the suspended empty container acting on the lower trolley lifting drum 24 through the lower trolley lifting steel wire rope 13.

As shown in fig. 1, the upper trolley balancing weight 19 and the lower trolley balancing weight 25 in the embodiment are both located in a cavity of the quayside crane supporting structure 1, and the quayside crane supporting structure 1 is used for protecting the upper trolley balancing weight 19 and the lower trolley balancing weight 25, so as to prevent the quayside crane structure and the quayside crane operation from being affected by the relatively large amplitude shaking of the upper trolley balancing weight 19 and the lower trolley balancing weight 25 under the influence of foreign nations.

As shown in fig. 9, the upper trolley energy-saving hoisting mechanism 8 and the lower trolley energy-saving hoisting mechanism 12 in this embodiment are uniformly distributed in the shore bridge machine room 7, and the shore bridge machine room 7 is horizontally and symmetrically arranged above the shore bridge girder 2 by taking the axes of the two parallel shore bridge girders 2 as axes. As shown in fig. 8, the present embodiment further includes a floating coupling 29, two ends of the floating coupling 29 are respectively in transmission connection with the lower trolley hoisting reduction boxes 23 in the two lower trolley energy-saving hoisting mechanisms 12, and the floating coupling 29 is used to ensure that the rotating speeds of the lower trolley hoisting drums 24 in the two lower trolley energy-saving hoisting mechanisms 12 are consistent, so as to prevent the problem that the lower trolley spreader 6 is difficult to lift and even dangerous. The energy-saving hoisting mechanism 8 of the upper trolley in the embodiment is horizontally and symmetrically arranged on two sides of the axes of the two parallel shore bridge girders 2, so that the gravity center of the shore bridge machine room 7 is stable.

Example 3 of the invention: as shown in fig. 9, a crossing shore crane using a counterweight to save energy comprises a shore bridge supporting structure 1, two parallel shore bridge girders 2 arranged on the shore bridge supporting structure 1, an upper trolley 3 and a lower trolley 4 walking on the shore bridge girders 2, an upper trolley hanger 5, a lower trolley hanger 6 and a shore bridge machine room 7 arranged above the shore bridge girders 2. The upper trolley and the lower trolley can run simultaneously without mutual interference, and the working efficiency of the shore bridge is greatly improved.

As shown in fig. 5, the upper trolley balance assemblies 11 in this embodiment are provided with one group, the two upper trolley energy-saving steel wire ropes 10 are both extended to the upper trolley balance assembly 11 after being redirected by the redirection pulleys 28, and each upper trolley energy-saving steel wire rope 10 is fixedly connected with the shore bridge supporting structure 1 after bypassing different fixed pulleys in the upper trolley balance fixed pulley group 21 and different movable pulleys in the upper trolley balance movable pulley group 20.

The lower trolley balance assemblies 15 are provided with one group, the two lower trolley energy-saving steel wire ropes 14 are both extended to the lower trolley balance assemblies 15 after being changed by the direction changing pulleys 28, and each lower trolley energy-saving steel wire rope 14 is fixedly connected with the shore bridge supporting structure 1 after bypassing different fixed pulleys in the lower trolley balance fixed pulley group 27 and different movable pulleys in the lower trolley balance movable pulley group 26. In this embodiment, the upper trolley balancing component 11 and the lower trolley balancing component 15 are only one, the arrangement difficulty is low, the upper trolley balancing component 11 and the lower trolley balancing component 15 in this embodiment are respectively located on two sides of the girder 2 of the shore bridge, the weight of two sides of the shore bridge can be balanced, and potential safety hazards caused by overweight of one side are prevented.

As shown in fig. 7 and 9, the upper trolley energy-saving hoisting mechanism 8 and the lower trolley energy-saving hoisting mechanism 12 in the embodiment are uniformly distributed in the shore bridge machine room 7, and the shore bridge machine room 7 is horizontally and symmetrically arranged above the shore bridge girder 2 by taking the axes of the two parallel shore bridge girders 2 as axes. As shown in fig. 8, the present embodiment further includes a floating coupling 29, two ends of the floating coupling 29 are respectively in transmission connection with the lower trolley hoisting reduction boxes 23 in the two lower trolley energy-saving hoisting mechanisms 12, and the floating coupling 29 is used to ensure that the rotating speeds of the lower trolley hoisting drums 24 in the two lower trolley energy-saving hoisting mechanisms 12 are consistent, so as to prevent the problem that the lower trolley spreader 6 is difficult to lift and even dangerous. The energy-saving hoisting mechanism 8 of the upper trolley in the embodiment is horizontally and symmetrically arranged on two sides of the axes of the two parallel shore bridge girders 2, so that the gravity center of the shore bridge machine room 7 is stable.

The working principle of the invention is as follows: the invention utilizes a counterweight energy-saving method to control the energy consumption of container taking by a shore bridge crane, and in the application of a crossing shore bridge, the upper trolley 3 and the lower trolley 4 run independently without mutual interference, so that the energy-saving lifting system of the upper trolley and the energy-saving lifting system of the lower trolley are also two sets of mutually independent equipment. In the invention, only the upper trolley lifting winding drum 18 and the lower trolley lifting winding drum 24 are arranged, the number of equipment is small, the mutual influence among the equipment is avoided, and the device is suitable for the crossing type shore bridge with a complex structure and various equipment.

In order to prevent the overlarge length of the upper trolley lifting reel 18 and the lower trolley lifting reel 24 from influencing the strength of the reels, the lifting steel wire rope and the energy-saving steel wire rope are wound at the same position of the lifting reels, and the winding directions are opposite.

Claims

1. The utility model provides an use balanced heavy energy-conserving formula bank bridge that passes through, includes bank bridge bearing structure (1), locates two parallel bank bridge girders (2) on bank bridge bearing structure (1), and last dolly (3) and lower dolly (4) of walking on bank bridge girder (2) go up dolly hoist (5), lower dolly hoist (6) and locate bank bridge machine room (7) of bank bridge girder (2) top, its characterized in that: the energy-saving hoisting system of the upper trolley comprises an energy-saving hoisting mechanism (8) of the upper trolley, an energy-saving hoisting steel wire rope (9) of the upper trolley, an energy-saving steel wire rope (10) of the upper trolley and an energy-saving hoisting component (11) of the lower trolley, wherein one end of the hoisting steel wire rope (9) of the upper trolley is led out from the energy-saving hoisting mechanism (8) of the upper trolley, and the other end of the hoisting steel wire rope (9) of the upper trolley extends to a lifting appliance (5) of the upper trolley; one end of the upper trolley energy-saving steel wire rope (10) is led out from the upper trolley energy-saving hoisting mechanism (8), and the other end of the upper trolley energy-saving steel wire rope (10) bypasses the upper trolley balance component (11) and is fixedly connected with the shore bridge supporting structure (1); the torque acting on the upper trolley energy-saving hoisting mechanism (8) by the upper trolley balance component (11) through an upper trolley energy-saving steel wire rope (10) is opposite to the torque acting on the upper trolley energy-saving hoisting mechanism (8) by the upper trolley lifting appliance (5) through an upper trolley lifting steel wire rope (9);

the lower trolley energy-saving lifting system comprises a lower trolley energy-saving lifting mechanism (12), a lower trolley lifting steel wire rope (13), a lower trolley energy-saving steel wire rope (14) and a lower trolley balance assembly (15), wherein one end of the lower trolley lifting steel wire rope (13) is led out of the lower trolley energy-saving lifting mechanism (12), and the other end of the lower trolley lifting steel wire rope (13) extends to a lower trolley lifting appliance (6); one end of the lower trolley energy-saving steel wire rope (14) is led out from the lower trolley energy-saving lifting mechanism (12), and the other end of the lower trolley energy-saving steel wire rope (14) bypasses a lower trolley balance assembly (15) and is fixedly connected with the shore bridge supporting structure (1); the torque of the lower trolley balance assembly (15) acting on the lower trolley energy-saving hoisting mechanism (12) through the lower trolley energy-saving steel wire rope (14) is opposite to the torque of the lower trolley lifting appliance (6) acting on the lower trolley energy-saving hoisting mechanism (12) through the lower trolley lifting steel wire rope (13).

2. The energy-saving traversing shore bridge with the application of the counterweight according to claim 1, wherein: the upper trolley energy-saving hoisting mechanism (8) comprises two upper trolley hoisting motors (16), an upper trolley hoisting reduction box (17) and two upper trolley hoisting drums (18), wherein the two upper trolley hoisting motors (16) are in transmission connection with the upper trolley hoisting reduction box (17), the two upper trolley hoisting motors (16) are symmetrically arranged on two sides of the upper trolley hoisting reduction box (17), the two upper trolley hoisting drums (18) are in transmission connection with the upper trolley hoisting reduction box (17), and the two upper trolley hoisting drums (18) are coaxially arranged and symmetrically arranged on two sides of the upper trolley hoisting reduction box (17); the number of the upper trolley lifting steel wire ropes (9) is two, and each upper trolley lifting steel wire rope (9) is wound on a different upper trolley lifting winding drum (18);

the upper trolley balance assembly (11) comprises an upper trolley balance weight (19), a group of upper trolley balance movable pulley blocks (20) and a group of upper trolley balance fixed pulley blocks (21), the upper trolley balance movable pulley blocks (20) are fixedly connected with the upper trolley balance weight (19), the upper trolley balance fixed pulley blocks (21) are fixedly connected with the shore bridge supporting structure (1), and the upper trolley balance fixed pulley blocks (21) are positioned right above the upper trolley balance movable pulley blocks (20); the energy-saving steel wire ropes (10) of the upper trolley are two in number, each energy-saving steel wire rope (10) of the upper trolley is wound on a different upper trolley lifting winding drum (18), and one end, far away from the upper trolley lifting winding drum (18), of each energy-saving steel wire rope (10) of the two upper trolley is fixedly connected with the shore bridge supporting structure (1) after bypassing the upper trolley balance fixed pulley block (21) and the upper trolley balance movable pulley block (20);

the lower trolley energy-saving hoisting mechanisms (12) are divided into two groups, each group of lower trolley energy-saving hoisting mechanisms (12) comprises a lower trolley hoisting motor (22), a lower trolley hoisting reduction box (23) and a lower trolley hoisting winding drum (24), the lower trolley hoisting motor (22), the lower trolley hoisting reduction box (23) and the lower trolley hoisting winding drum (24) in each group of lower trolley energy-saving hoisting mechanisms (12) are sequentially connected in a transmission manner, and the two groups of lower trolley energy-saving hoisting mechanisms (12) are horizontally and symmetrically arranged on two sides of the axis of the two parallel shore bridge girders (2); the number of the lower trolley lifting steel wire ropes (13) is two, and each lower trolley lifting steel wire rope (13) is wound on a different lower trolley lifting winding drum (24);

the lower trolley balance assembly (15) comprises a lower trolley balance weight (25), a group of lower trolley balance movable pulley blocks (26) and a group of lower trolley balance fixed pulley blocks (27), the lower trolley balance movable pulley blocks (26) are fixedly connected with the lower trolley balance weight (25), the lower trolley balance fixed pulley blocks (27) are fixedly connected with the shore bridge supporting structure (1), and the lower trolley balance fixed pulley blocks (27) are positioned right above the lower trolley balance movable pulley blocks (26); the energy-saving steel wire ropes (14) of the lower trolley are two in number, each energy-saving steel wire rope (14) of the lower trolley is wound on a lower trolley lifting winding drum (24) in different energy-saving lifting mechanisms (12) of the lower trolley, and one end, far away from the lower trolley lifting winding drum (24), of each energy-saving steel wire rope (14) of the lower trolley bypasses a lower trolley balance fixed pulley block (27) and a lower trolley balance movable pulley block (26) and then is fixedly connected with the shore bridge supporting structure (1).

3. The energy-saving traversing shore bridge with the application of the counterweight according to claim 2, wherein: the energy-saving steel wire rope (10) of the upper trolley is led out from a lifting winding drum (18) of the upper trolley, and extends to the balance fixed pulley block (21) of the upper trolley after bypassing the direction-changing pulley (28); the lower trolley energy-saving steel wire rope (14) is led out from a lower trolley lifting reel (24), bypasses a redirection pulley (28) and then extends to a lower trolley balance fixed pulley block (27).

4. The energy-saving traversing shore bridge with the use of the counterweight according to claim 3, wherein: the upper trolley balance fixed pulley block (21) comprises a plurality of fixed pulleys which are coaxially arranged, the upper trolley balance movable pulley block (20) comprises a plurality of movable pulleys which are coaxially arranged, and the number of the pulleys in the upper trolley balance fixed pulley block (21) is the same as that of the pulleys in the upper trolley balance movable pulley block (20); the upper trolley energy-saving steel wire rope (10) is led out from an upper trolley lifting winding drum (18), firstly bypasses one fixed pulley in an upper trolley balance fixed pulley block (21), then extends downwards to the upper trolley balance movable pulley block (20), bypasses one movable pulley in the upper trolley balance movable pulley block (20), then extends upwards to the upper trolley balance fixed pulley block (21), sequentially bypasses different fixed pulleys and movable pulleys, and finally is fixedly connected with the shore bridge supporting structure (1);

the lower trolley balance fixed pulley block (27) comprises a plurality of fixed pulleys which are coaxially arranged, the lower trolley balance movable pulley block (26) comprises a plurality of movable pulleys which are coaxially arranged, and the number of the pulleys in the lower trolley balance fixed pulley block (27) is the same as that of the pulleys in the lower trolley balance movable pulley block (26); the lower trolley energy-saving steel wire rope (14) is led out from a lower trolley lifting winding drum (24), firstly bypasses a fixed pulley in a lower trolley balance fixed pulley block (27), then extends downwards to the lower trolley balance movable pulley block (26), bypasses a movable pulley in the lower trolley balance movable pulley block (26), then extends upwards to the lower trolley balance fixed pulley block (27), and finally fixedly connects with the shore bridge supporting structure (1) after sequentially bypassing different fixed pulleys and movable pulleys.

5. The energy-saving traversing shore bridge with the application of the counterweight according to claim 2, wherein: the upper trolley lifting steel wire rope (9) and the upper trolley energy-saving steel wire rope (10) are wound at the same position of the upper trolley lifting winding drum (18), and the winding directions of the upper trolley lifting steel wire rope (9) and the upper trolley energy-saving steel wire rope (10) are opposite; the lower trolley lifting steel wire rope (13) and the lower trolley energy-saving steel wire rope (14) are wound at the same position of the lower trolley lifting winding drum (24), and the winding directions of the lower trolley lifting steel wire rope (13) and the lower trolley energy-saving steel wire rope (14) are opposite.

6. The energy-saving traversing shore bridge with the use of the counterweight according to claim 4, wherein: the two groups of upper trolley balance assemblies (11) are arranged, the two groups of upper trolley balance assemblies (11) are symmetrically arranged on the outer sides of two parallel shore bridge girders (2), and each upper trolley energy-saving steel wire rope (10) bypasses a different upper trolley balance assembly (11) and is fixedly connected with the shore bridge supporting structure (1);

the lower trolley balance assemblies (15) are two groups in total, the two groups of lower trolley balance assemblies (15) are symmetrically arranged on the outer sides of the two parallel shore bridge girders (2), and each lower trolley energy-saving steel wire rope (14) is fixedly connected with the shore bridge supporting structure (1) after bypassing one different lower trolley balance assembly (15).

7. The energy-saving traversing shore bridge with the use of the counterweight according to claim 4, wherein: the two upper trolley energy-saving steel wire ropes (10) are both extended to the upper trolley balance assembly (11) after being redirected by the redirection pulleys (28), and each upper trolley energy-saving steel wire rope (10) is fixedly connected with the shore bridge supporting structure (1) after bypassing different fixed pulleys in the upper trolley balance fixed pulley block (21) and different movable pulleys in the upper trolley balance movable pulley block (20);

the lower trolley balance assemblies (15) are provided with one group, the two lower trolley energy-saving steel wire ropes (14) are changed in direction by the direction changing pulleys (28) and then extend to the lower trolley balance assemblies (15), and each lower trolley energy-saving steel wire rope (14) is fixedly connected with the shore bridge supporting structure (1) after bypassing different fixed pulleys in the lower trolley balance fixed pulley block (27) and different movable pulleys in the lower trolley balance movable pulley block (26).

8. The energy-saving traversing shore bridge with the application of the counterweight according to claim 6 or 7, wherein: the torque of the upper trolley balance component (11) acting on the upper trolley lifting drum (18) through the upper trolley energy-saving steel wire rope (10) is equal to the torque of the upper trolley lifting appliance (5) and the suspended empty container acting on the upper trolley lifting drum (18) through the upper trolley lifting steel wire rope (9); the torque of the lower trolley balance assembly (15) acting on the lower trolley lifting drum (24) through the lower trolley energy-saving steel wire rope (14) is equal to the torque of the lower trolley lifting appliance (6) and the suspended empty container acting on the lower trolley lifting drum (24) through the lower trolley lifting steel wire rope (13).

9. The energy-saving traversing shore bridge with the application of the counterweight according to claim 6 or 7, wherein: the upper trolley balance weight (19) and the lower trolley balance middle (25) are both positioned in a cavity of the shore bridge supporting structure (1).

10. The energy-saving traversing shore bridge with the application of the counterweight according to claim 6 or 7, wherein: the device is characterized by further comprising a floating coupling (29), wherein two ends of the floating coupling (29) are in transmission connection with lower trolley lifting reduction boxes (23) in the two groups of lower trolley energy-saving lifting mechanisms (12) respectively; the energy-saving hoisting mechanism (8) of the upper trolley and the energy-saving hoisting mechanism (12) of the lower trolley are uniformly distributed in a shore bridge machine room (7), and the shore bridge machine room (7) is horizontally and symmetrically arranged above the shore bridge girder (2) by taking the axes of two parallel shore bridge girders (2) as axes; the upper trolley energy-saving hoisting mechanisms (8) are horizontally and symmetrically arranged on two sides of the axes of the two parallel shore bridge girders (2).