阅读说明：本技术 一种用于岸桥的减速箱平衡重节能系统 (Reduction box counterweight energy-saving system for shore bridge ) 是由 赵胜国 郭树旺 肖强 赵迎九 郑雪峰 王悦民 童民慧 高翔 白建明 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种用于岸桥的减速箱平衡重节能系统,包括起升机构、平衡减速箱、平衡卷筒、平衡重钢丝绳、动滑轮和平衡重,起升机构包括电机、起升卷筒、起升减速箱。电机、起升减速箱和起升卷筒顺次连接。起升卷筒、平衡减速箱和平衡卷筒顺次连接,平衡重钢丝绳的一端缠绕在平衡卷筒上,另一端绕过动滑轮与岸桥结构固定连接,动滑轮固定设于平衡重上,平衡重作用于平衡卷筒上的扭矩与岸桥小车吊具作用于起升卷筒上的扭矩方向相反。本发明无需减少用电设备或降低岸桥的运行参数,降低了岸桥运行的能耗,简化了平衡重钢丝绳的缠绕结构,同时,无需延长起升卷筒的长度,避免影响起升卷筒的使用寿命。(The invention discloses a reduction box counterweight energy-saving system for a shore bridge, which comprises a hoisting mechanism, a balance reduction box, a balance winding drum, a counterweight steel wire rope, a movable pulley and a balance weight, wherein the hoisting mechanism comprises a motor, a hoisting winding drum and a hoisting reduction box. The motor, the lifting reduction box and the lifting winding drum are connected in sequence. Play to rise reel, balanced reducing gear box and balanced reel and connect in order, the one end winding of balanced heavy wire rope is on balanced reel, and the other end is walked around movable pulley and bank bridge structure fixed connection, and the movable pulley is fixed to be located on balanced heavy, and the moment of torsion that balanced heavy acted on balanced reel is opposite with the moment of torsion direction that bank bridge dolly hoist acted on the reel that plays to rise. According to the invention, electric equipment or operation parameters of the shore bridge are not required to be reduced, the energy consumption of the operation of the shore bridge is reduced, the winding structure of the counterweight steel wire rope is simplified, meanwhile, the length of the lifting winding drum is not required to be prolonged, and the service life of the lifting winding drum is prevented from being influenced.)

1. The utility model provides a balanced heavy economizer system of reducing gear box for bank bridge which characterized in that: the device comprises a hoisting mechanism (1), a balance reduction box (2), a balance winding drum (3), a balance weight steel wire rope (4), a movable pulley (5) and a balance weight (6), wherein the hoisting mechanism (1) comprises a motor (7), a hoisting winding drum (8), a hoisting reduction box (9) and a hoisting steel wire rope (10); the motor (7), the lifting reduction box (9) and the lifting winding drum (8) are sequentially in transmission connection, one end of a lifting steel wire rope (10) is wound on the lifting winding drum (8), and the other end of the lifting steel wire rope (10) is wound on a shore bridge lifting appliance; the lifting winding drum (8), the balance reduction gearbox (2) and the balance winding drum (3) are sequentially in transmission connection, one end of a counterweight steel wire rope (4) is wound on the balance winding drum (3), the other end of the counterweight steel wire rope (4) is fixedly connected with a shore bridge structure by bypassing a movable pulley (5), and the movable pulley (5) is fixedly arranged on a counterweight (6); the torque acting on the balance reel (3) through the balance weight steel wire rope (4) is opposite to the torque acting on the lifting reel (8) through the lifting steel wire rope (10) by the bank bridge trolley lifting appliance and the empty container.

2. The reduction box counterweight energy-saving system for the shore bridge as defined in claim 1, wherein: the torque acting on the balance reel (3) through the balance weight steel wire rope (4) of the balance weight (6) is equal to the torque acting on the lifting reel (8) through the lifting steel wire rope (10) of the crane trolley lifting appliance and the empty container.

3. The reduction box counterweight energy-saving system for the shore bridge as defined in claim 1, wherein: the crane is characterized by further comprising a direction-changing pulley block (11), wherein the direction-changing pulley block (11) is fixedly arranged on the quay crane structure, and the counterweight steel wire rope (4) is led out from the balance winding drum (3) and extends to the movable pulley (5) after bypassing the direction-changing pulley block (11).

4. The reduction box counterweight energy-saving system for the shore bridge as defined in claim 1, wherein: balance weight (6) are located the centre of bank bridge gate leg stand, and balance weight (6) move from top to bottom in the centre of bank bridge gate leg stand.

5. The reduction box counterweight energy-saving system for the shore bridge as defined in claim 1, wherein: the lifting mechanism (1) comprises two motors (7) and two lifting winding drums (8), wherein the two motors (7) and the two lifting winding drums (8) are respectively arranged on two sides of a lifting reduction box (9).

6. The reduction box counterweight energy-saving system for the shore bridge as defined in claim 5, wherein: the balance reduction box (2), the balance winding drum (3), the balance weight steel wire rope (4), the movable pulley (5) and the balance weight (6) are respectively provided with two parts, and the two parts are symmetrically arranged on two sides of the hoisting mechanism (1).

7. The reduction box counterweight energy-saving system for the shore bridge as defined in claim 6, wherein: the weight of the balancing weight (6) is 15t-25 t.

Technical Field

The invention relates to the technical field of port equipment, in particular to a reduction box counterweight energy-saving system for a shore bridge.

Background

With the rapid development of the world economy, the scale of shipping logistics is also rapidly expanded, and the throughput of global containers is continuously increased. In order to reduce the transportation cost of containers, container ships are continuously developed in large scale, at present, the class-3E container ships with the container carrying capacity reaching 24000TEU are put into use, the requirement on the loading and unloading capacity of ports is higher and higher, and the port operation cost is increased year by year, wherein the energy consumption of port mechanical equipment is one of the most important parts in the port operation cost.

The shore bridge is the most important container loading and unloading machine in the port, and the function of the shore bridge is to finish the transfer of containers between a container yard and a container ship, and directly influences the loading and unloading efficiency of the containers in the port and the operation energy consumption of the port. In order to adapt to larger and larger loading and unloading workload, the heavy-load speed and the operating power of the shore bridge are increased year by year, and the energy conservation and consumption reduction of the shore bridge are the future development trends.

The energy-saving technology of the shore bridge mainly reduces the modes of electric equipment, operating parameters of the shore bridge and the like, reduces energy consumption, influences the normal use and the loading and unloading efficiency of the shore bridge, and cannot meet the loading and unloading requirements of ports. At present, also adopt the energy-conserving mode of counter weight technique, traditional counter weight energy-conserving technique is direct to be connected counter weight and hoist through wire rope, offset some weight, play energy-conserving effect, but this kind of mode wire rope wire winding is complicated, need set up one set of wire rope system alone, it is bigger to arrange the degree of difficulty, another kind is to pass through wire rope direct winding on the play reel of bank bridge with the counter weight, wire rope's wire winding mode has been simplified to this kind of arrangement mode, but need increase the length that plays to rise the reel, it can lead to the intensity decline that plays to rise the reel to increase the length that rises to rise the reel, cause the influence to the life that plays to rise the reel, the computer lab is arranged the degree of difficulty simultaneously great. Therefore, the existing shore bridge energy-saving technology needs to be improved, and a new energy-saving system needs to be developed.

Disclosure of Invention

The invention aims to provide a reduction box counterweight energy-saving system for a shore bridge, which can reduce the energy consumption of the shore bridge while ensuring the working efficiency of the shore bridge, does not need to directly connect a counterweight with a lifting appliance, simplifies a steel wire rope winding system, does not need to prolong the length of a lifting winding drum, ensures the strength of the lifting winding drum, and ensures the normal use of each component.

In order to solve the technical problems, the invention adopts the following technical scheme: a reduction box counterweight energy-saving system for a shore bridge comprises a hoisting mechanism, a balance reduction box, a balance winding drum, a counterweight steel wire rope, a movable pulley and a balance weight. The lifting mechanism comprises a motor, a lifting winding drum, a lifting reduction box and a lifting steel wire rope. The motor, the lifting reduction box and the lifting winding drum are sequentially connected in a transmission mode, one end of the lifting steel wire rope is wound on the lifting winding drum, the other end of the lifting steel wire rope is wound on the shore bridge lifting appliance, motor kinetic energy is transmitted to the lifting winding drum through the lifting reduction box, the lifting winding drum rotates to drive the lifting steel wire rope, and the shore bridge lifting appliance is moved up and down.

The lifting winding drum, the balance reduction gearbox and the balance winding drum are sequentially connected in a transmission mode, one end of a balance weight steel wire rope is wound on the balance winding drum, the other end of the balance weight steel wire rope is wound around a movable pulley and fixedly connected with a shore bridge structure, and the movable pulley is fixedly arranged on the balance weight. The torque acted on the balance drum by the balance weight through the balance weight steel wire rope is opposite to the torque acted on the lifting drum by the bank bridge trolley lifting appliance and the empty container through the lifting steel wire rope, the balance drum rotates to drive the balance weight steel wire rope, the balance weight steel wire rope drives the balance weight to move up and down through a movable pulley fixedly arranged on the balance weight, and when the bank bridge lifting appliance rises, the balance weight descends; when the shore bridge lifting appliance descends, the counterweight ascends.

In the counterweight energy-saving system for the reduction gearbox of the shore bridge, the torque of the counterweight acting on the balance winding drum through the counterweight steel wire rope is equal to the torque of the crane trolley lifting appliance and the empty container acting on the lifting winding drum through the lifting steel wire rope. Because the torque direction on the balance winding drum is opposite to that on the lifting winding drum, the torque of the balance weight on the balance winding drum can offset the torque of the shore bridge lifting appliance and the torque of the empty container on the lifting winding drum, and further, the energy-saving effect is achieved.

In order to improve the stability of the invention, the invention is also provided with a direction-changing pulley block, the direction-changing pulley block is fixedly arranged on the shore bridge structure, and the counterweight steel wire rope is led out from the balance winding drum and extends to the movable pulley after bypassing the direction-changing pulley block. The direction-changing pulley block is used for guiding the connection of the counterweight steel wire rope and the movable pulley and the counterweight, so that the positions of the counterweight winding drum and the counterweight can be conveniently arranged, and the stability of the energy-saving system is improved.

The balance weight is positioned in the middle of the shore bridge door leg upright post and moves up and down in the middle of the shore bridge door leg upright post. The inside at bank bridge door leg stand is arranged to the balanced weight, can prevent that external disturbance such as crosswind from influencing balanced heavy reciprocating, causes extra load to equipment, and protective apparatus's steady operation prevents to take place the incident simultaneously.

In order to improve the stability of the invention during operation, the hoisting mechanism comprises two motors and two hoisting drums, wherein the two motors and the two hoisting drums are respectively arranged on two sides of the hoisting reduction box. Similarly, the balance reduction box, the balance winding drum, the balance weight steel wire rope, the movable pulley and the balance weight-average device are two and are symmetrically arranged on two sides of the hoisting mechanism. The balance weights are symmetrically arranged on two sides, so that the influence on the stability of the structure due to unstable gravity center of the shore bridge can be prevented.

The reduction ratio of the balance reduction gearbox can be adjusted, the reduction ratio of the balance reduction gearbox influences the rotating speed of the balance winding drum, when the rotating speed of the lifting winding drum is unchanged, the reduction ratio of the balance reduction gearbox is larger, the rotating speed of the balance winding drum is slower, and correspondingly, the up-and-down moving distance of the balance weight is smaller.

The invention depends on the up-and-down movement of the counterweight to offset the energy consumption of a part of up-and-down movement of the lifting appliance and the container, and the invention also limits the weight of the counterweight, wherein the weight of the counterweight is 15t-20 t.

Compared with the prior art, the invention has the advantages that: the reduction box counterweight energy-saving system for the shore bridge is provided, electric equipment does not need to be reduced or operation parameters of the shore bridge do not need to be reduced, the torque of the balance weight acting on the balance winding drum is utilized to offset the torque of a shore bridge lifting appliance and an empty container acting on a lifting winding drum, and the energy-saving effect of 25% during the operation of the shore bridge is realized. Set up balanced reel, balanced heavy wire rope twines on balanced reel, need not lug connection hoist and container, has simplified balanced heavy wire rope's winding structure. Meanwhile, the balance reduction gearbox is used for realizing the connection of the balance winding drum and the lifting winding drum, the length of the lifting winding drum does not need to be prolonged, the service life of the lifting winding drum is prevented from being influenced, and the stability of the lifting mechanism is improved. In addition, the lifting distance of the balance weight in the shore bridge door leg stand column can be reduced by adjusting the reduction ratio of the balance reduction box.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a hoisting mechanism according to the present invention;

fig. 3 is a structural schematic diagram of the lifting winding in the invention.

The meaning of the reference numerals: 1-lifting mechanism, 2-balance reduction box, 3-balance reel, 4-balance weight steel wire rope, 5-movable pulley, 6-balance weight, 7-motor, 8-lifting reel, 9-lifting reduction box, 10-lifting steel wire rope and 11-direction-changing pulley block.

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. 1 and 2, a reduction gearbox counterweight energy-saving system for a shore bridge comprises a hoisting mechanism 1, a balance reduction gearbox 2, a balance winding drum 3, a counterweight steel wire rope 4, a movable pulley 5 and a counterweight 6. The hoisting mechanism 1 comprises a motor 7, a hoisting drum 8, a hoisting reduction box 9 and a hoisting steel wire rope 10.

As shown in fig. 3, the motor 7, the lifting reduction box 9 and the lifting drum 8 are sequentially connected in a transmission manner, one end of a lifting steel wire rope 10 is wound on the lifting drum 8, the other end of the lifting steel wire rope 10 is wound on the shore bridge lifting appliance, and the lifting drum 8 rotates to drive the lifting steel wire rope 10 to pull the shore bridge lifting appliance to ascend or descend. The shore bridge is used for transferring the container, the weight of the container is larger when the container is fully loaded, and the energy consumption in the process of lifting the container is larger.

As shown in fig. 1, the lifting winding drum 8, the balance reduction gearbox 2 and the balance winding drum 3 are sequentially connected in a transmission manner, one end of the counterweight steel wire rope 4 is wound on the balance winding drum 3, the other end of the counterweight steel wire rope 4 is wound around the movable pulley 5 to be fixedly connected with the shore bridge structure, and the movable pulley 5 is fixedly arranged on the counterweight 6. The balance drum 3 drives the movable pulley 5 and the balance weight 6 to move up and down through the balance weight wire rope 4. During the operation process is transported to the container to bank bridge carrying on, plays to rise reel 8 and rotates under the effect of motor 7, plays to rise reel 8 simultaneously and drives balanced reel 3 through balanced reducing gear box 2 and rotate, moreover, balanced heavy 6 act on balanced reel 3 through balanced heavy wire rope 4 the moment of torsion with bank bridge dolly hoist and container play to rise the moment of torsion opposite direction on reel 8 through playing to rise wire rope 10 common action, when bank bridge hoist and container go up, balanced heavy 6 descends, when bank bridge hoist and container descend, balanced heavy 6 rises. The torque of the counterweight 6 acting on the balance winding drum 3 through the counterweight steel wire rope 4 can offset the torque of a part of bank bridge lifting appliance and containers acting on the lifting winding drum 8 through the lifting steel wire rope 10, and then the aim of saving energy and reducing consumption of the bank bridge is achieved by utilizing the vertical movement of the counterweight 6.

Example 2 of the invention: as shown in fig. 1 and 2, a reduction gearbox counterweight energy-saving system for a shore bridge comprises a hoisting mechanism 1, a balance reduction gearbox 2, a balance winding drum 3, a counterweight steel wire rope 4, a movable pulley 5 and a counterweight 6. The hoisting mechanism 1 comprises a motor 7, a hoisting drum 8, a hoisting reduction box 9 and a hoisting steel wire rope 10.

As shown in fig. 3, the motor 7, the lifting reduction box 9 and the lifting drum 8 are sequentially connected in a transmission manner, one end of a lifting steel wire rope 10 is wound on the lifting drum 8, the other end of the lifting steel wire rope 10 is wound on the shore bridge lifting appliance, and the lifting drum 8 rotates to drive the lifting steel wire rope 10 to pull the shore bridge lifting appliance to ascend or descend. The shore bridge is used for transferring the container, the weight of the container is larger when the container is fully loaded, and the energy consumption in the process of lifting the container is larger.

As shown in fig. 1, the lifting winding drum 8, the balance reduction gearbox 2 and the balance winding drum 3 are sequentially connected in a transmission manner, one end of the counterweight steel wire rope 4 is wound on the balance winding drum 3, the other end of the counterweight steel wire rope 4 is wound around the movable pulley 5 to be fixedly connected with the shore bridge structure, and the movable pulley 5 is fixedly arranged on the counterweight 6. The balance drum 3 drives the movable pulley 5 and the balance weight 6 to move up and down through the balance weight wire rope 4. During the operation process is transported to the container to bank bridge carrying on, plays to rise reel 8 and rotates under the effect of motor 7, plays to rise reel 8 simultaneously and drives balanced reel 3 through balanced reducing gear box 2 and rotate, moreover, balanced heavy 6 act on balanced reel 3 through balanced heavy wire rope 4 the moment of torsion with bank bridge dolly hoist and container play to rise the moment of torsion opposite direction on reel 8 through playing to rise wire rope 10 common action, when bank bridge hoist and container go up, balanced heavy 6 descends, when bank bridge hoist and container descend, balanced heavy 6 rises. The torque of the counterweight 6 acting on the balance winding drum 3 through the counterweight steel wire rope 4 can offset the torque of a part of bank bridge lifting appliance and containers acting on the lifting winding drum 8 through the lifting steel wire rope 10, and then the aim of saving energy and reducing consumption of the bank bridge is achieved by utilizing the vertical movement of the counterweight 6.

As shown in fig. 1, in this embodiment, the torque of the counterweight 6 acting on the balance drum 3 through the counterweight steel wire rope 4 is equal to the torque of the crane trolley lifting appliance and the empty container acting on the lifting drum 8 through the lifting steel wire rope 10, so that the weights of the crane trolley lifting appliance and the container can be offset without increasing a complex steel wire rope winding system, and energy saving is realized.

As shown in fig. 1, in this embodiment, a direction-changing pulley block 11 is further disposed between the balance drum 3 and the movable pulley 5, the direction-changing pulley block 11 is fixedly disposed on the quay crane structure and belongs to the fixed pulley, and the counterweight steel wire rope 4 is led out from the balance drum 3, passes through the direction-changing pulley block 11, and then extends to the movable pulley 5. The purpose of additionally arranging the direction-changing pulley block 11 is to change the extending direction of the counterweight steel wire rope 4, so that the arrangement positions of the counterweight winding drum 3 and the counterweight 6 can be conveniently adjusted. In this embodiment, balanced reel 3 sets up in the computer lab that is located bank bridge girder upper portion, and the unified management and the maintenance of being convenient for, and balanced heavy 6 sets up in the inside of bank bridge door leg stand, can effectively resist the interference of external factors such as harbour crosswind to balanced heavy 6 up-and-down motion, avoids causing extra accord with to equipment, prevents to produce the incident.

Example 3 of the invention: as shown in fig. 1 and 2, a reduction gearbox counterweight energy-saving system for a shore bridge comprises a hoisting mechanism 1, a balance reduction gearbox 2, a balance winding drum 3, a counterweight steel wire rope 4, a movable pulley 5 and a counterweight 6. The hoisting mechanism 1 comprises a motor 7, a hoisting drum 8, a hoisting reduction box 9 and a hoisting steel wire rope 10.

As shown in fig. 3, the motor 7, the lifting reduction box 9 and the lifting drum 8 are sequentially connected in a transmission manner, one end of a lifting steel wire rope 10 is wound on the lifting drum 8, the other end of the lifting steel wire rope 10 is wound on the shore bridge lifting appliance, and the lifting drum 8 rotates to drive the lifting steel wire rope 10 to pull the shore bridge lifting appliance to ascend or descend. The shore bridge is used for transferring the container, the weight of the container is larger when the container is fully loaded, and the energy consumption in the process of lifting the container is larger.

As shown in fig. 1, the lifting winding drum 8, the balance reduction gearbox 2 and the balance winding drum 3 are sequentially connected in a transmission manner, one end of the counterweight steel wire rope 4 is wound on the balance winding drum 3, the other end of the counterweight steel wire rope 4 is wound around the movable pulley 5 to be fixedly connected with the shore bridge structure, and the movable pulley 5 is fixedly arranged on the counterweight 6. The balance drum 3 drives the movable pulley 5 and the balance weight 6 to move up and down through the balance weight wire rope 4. During the operation process is transported to the container to bank bridge carrying on, plays to rise reel 8 and rotates under the effect of motor 7, plays to rise reel 8 simultaneously and drives balanced reel 3 through balanced reducing gear box 2 and rotate, moreover, balanced heavy 6 act on balanced reel 3 through balanced heavy wire rope 4 the moment of torsion with bank bridge dolly hoist and container play to rise the moment of torsion opposite direction on reel 8 through playing to rise wire rope 10 common action, when bank bridge hoist and container go up, balanced heavy 6 descends, when bank bridge hoist and container descend, balanced heavy 6 rises. The torque of the counterweight 6 acting on the balance winding drum 3 through the counterweight steel wire rope 4 can offset the torque of a part of bank bridge lifting appliance and containers acting on the lifting winding drum 8 through the lifting steel wire rope 10, and then the aim of saving energy and reducing consumption of the bank bridge is achieved by utilizing the vertical movement of the counterweight 6.

As shown in fig. 1, in this embodiment, the torque of the counterweight 6 acting on the balance drum 3 through the counterweight steel wire rope 4 is equal to the torque of the crane trolley lifting appliance and the empty container acting on the lifting drum 8 through the lifting steel wire rope 10, so that the weights of the crane trolley lifting appliance and the container can be offset without increasing a complex steel wire rope winding system, and energy saving is realized.

As shown in fig. 1, in this embodiment, a direction-changing pulley block 11 is further disposed between the balance drum 3 and the movable pulley 5, the direction-changing pulley block 11 is fixedly disposed on the quay crane structure and belongs to the fixed pulley, and the counterweight steel wire rope 4 is led out from the balance drum 3, passes through the direction-changing pulley block 11, and then extends to the movable pulley 5. The purpose of additionally arranging the direction-changing pulley block 11 is to change the extending direction of the counterweight steel wire rope 4, so that the arrangement positions of the counterweight winding drum 3 and the counterweight 6 can be conveniently adjusted. In this embodiment, balanced reel 3 sets up in the computer lab that is located bank bridge girder upper portion, and the unified management and the maintenance of being convenient for, and balanced heavy 6 sets up in the inside of bank bridge door leg stand, can effectively resist the interference of external factors such as harbour crosswind to balanced heavy 6 up-and-down motion, avoids causing extra accord with to equipment, prevents to produce the incident.

As shown in fig. 1, the hoisting mechanism 1 in this embodiment includes two motors 7 and another hoisting drum 8, and the two motors 7 and the hoisting drum 8 are respectively disposed on two sides of a hoisting reduction box 9. Similarly, the balance reduction box 2, the balance winding drum 3, the balance weight steel wire rope 4, the movable pulley 5, the balance weight 6 and the redirection pulley block 11 are also provided with two groups, and the two groups are symmetrically arranged on two sides of the hoisting mechanism 1, so that the stability of the shore bridge can be improved, and the influence on the structural safety of the shore bridge caused by the overweight of one side can be prevented.

The moving distance of the balance weight 6 can be adjusted by adjusting the reduction ratio of the balance reduction gearbox 2 in the embodiment, the reduction ratio of the balance reduction gearbox 2 influences the rotating speed of the balance winding drum 3, when the rotating speed of the lifting winding drum 8 is unchanged, the reduction ratio of the balance reduction gearbox 2 is larger, the rotating speed of the balance winding drum 3 is slower, and correspondingly, the distance of the up-down movement of the balance weight 6 is smaller. In the present embodiment, two balancing weights 6 are provided, and the weight of each balancing weight 6 is equal to 15 t.

Example 4 of the invention: as shown in fig. 1 and 2, a reduction gearbox counterweight energy-saving system for a shore bridge comprises a hoisting mechanism 1, a balance reduction gearbox 2, a balance winding drum 3, a counterweight steel wire rope 4, a movable pulley 5 and a counterweight 6. The hoisting mechanism 1 comprises a motor 7, a hoisting drum 8, a hoisting reduction box 9 and a hoisting steel wire rope 10.

As shown in fig. 3, the motor 7, the lifting reduction box 9 and the lifting drum 8 are sequentially connected in a transmission manner, one end of a lifting steel wire rope 10 is wound on the lifting drum 8, the other end of the lifting steel wire rope 10 is wound on the shore bridge lifting appliance, and the lifting drum 8 rotates to drive the lifting steel wire rope 10 to pull the shore bridge lifting appliance to ascend or descend. The shore bridge is used for transferring the container, the weight of the container is larger when the container is fully loaded, and the energy consumption in the process of lifting the container is larger.

As shown in fig. 1, the lifting winding drum 8, the balance reduction gearbox 2 and the balance winding drum 3 are sequentially connected in a transmission manner, one end of the counterweight steel wire rope 4 is wound on the balance winding drum 3, the other end of the counterweight steel wire rope 4 is wound around the movable pulley 5 to be fixedly connected with the shore bridge structure, and the movable pulley 5 is fixedly arranged on the counterweight 6. The balance drum 3 drives the movable pulley 5 and the balance weight 6 to move up and down through the balance weight wire rope 4. During the operation process is transported to the container to bank bridge carrying on, plays to rise reel 8 and rotates under the effect of motor 7, plays to rise reel 8 simultaneously and drives balanced reel 3 through balanced reducing gear box 2 and rotate, moreover, balanced heavy 6 act on balanced reel 3 through balanced heavy wire rope 4 the moment of torsion with bank bridge dolly hoist and container play to rise the moment of torsion opposite direction on reel 8 through playing to rise wire rope 10 common action, when bank bridge hoist and container go up, balanced heavy 6 descends, when bank bridge hoist and container descend, balanced heavy 6 rises. The torque of the counterweight 6 acting on the balance winding drum 3 through the counterweight steel wire rope 4 can offset the torque of a part of bank bridge lifting appliance and containers acting on the lifting winding drum 8 through the lifting steel wire rope 10, and then the aim of saving energy and reducing consumption of the bank bridge is achieved by utilizing the vertical movement of the counterweight 6.

As shown in fig. 1, in this embodiment, the torque of the counterweight 6 acting on the balance drum 3 through the counterweight steel wire rope 4 is equal to the torque of the crane trolley lifting appliance and the empty container acting on the lifting drum 8 through the lifting steel wire rope 10, so that the weights of the crane trolley lifting appliance and the container can be offset without increasing a complex steel wire rope winding system, and energy saving is realized.

As shown in fig. 1, in this embodiment, a direction-changing pulley block 11 is further disposed between the balance drum 3 and the movable pulley 5, the direction-changing pulley block 11 is fixedly disposed on the quay crane structure and belongs to the fixed pulley, and the counterweight steel wire rope 4 is led out from the balance drum 3, passes through the direction-changing pulley block 11, and then extends to the movable pulley 5. The purpose of additionally arranging the direction-changing pulley block 11 is to change the extending direction of the counterweight steel wire rope 4, so that the arrangement positions of the counterweight winding drum 3 and the counterweight 6 can be conveniently adjusted. In this embodiment, balanced reel 3 sets up in the computer lab that is located bank bridge girder upper portion, and the unified management and the maintenance of being convenient for, and balanced heavy 6 sets up in the inside of bank bridge door leg stand, can effectively resist the interference of external factors such as harbour crosswind to balanced heavy 6 up-and-down motion, avoids causing extra accord with to equipment, prevents to produce the incident.

As shown in fig. 1, the hoisting mechanism 1 in this embodiment includes two motors 7 and another hoisting drum 8, and the two motors 7 and the hoisting drum 8 are respectively disposed on two sides of a hoisting reduction box 9. Similarly, the balance reduction box 2, the balance winding drum 3, the balance weight steel wire rope 4, the movable pulley 5, the balance weight 6 and the redirection pulley block 11 are also provided with two groups, and the two groups are symmetrically arranged on two sides of the hoisting mechanism 1, so that the stability of the shore bridge can be improved, and the influence on the structural safety of the shore bridge caused by the overweight of one side can be prevented.

The moving distance of the balance weight 6 can be adjusted by adjusting the reduction ratio of the balance reduction gearbox 2 in the embodiment, the reduction ratio of the balance reduction gearbox 2 influences the rotating speed of the balance winding drum 3, when the rotating speed of the lifting winding drum 8 is unchanged, the reduction ratio of the balance reduction gearbox 2 is larger, the rotating speed of the balance winding drum 3 is slower, and correspondingly, the distance of the up-down movement of the balance weight 6 is smaller. In the present embodiment, two balancing weights 6 are provided, and the weight of each balancing weight 6 is equal to 20 t.

Example 5 of the invention: as shown in fig. 1 and 2, a reduction gearbox counterweight energy-saving system for a shore bridge comprises a hoisting mechanism 1, a balance reduction gearbox 2, a balance winding drum 3, a counterweight steel wire rope 4, a movable pulley 5 and a counterweight 6. The hoisting mechanism 1 comprises a motor 7, a hoisting drum 8, a hoisting reduction box 9 and a hoisting steel wire rope 10.

As shown in fig. 3, the motor 7, the lifting reduction box 9 and the lifting drum 8 are sequentially connected in a transmission manner, one end of a lifting steel wire rope 10 is wound on the lifting drum 8, the other end of the lifting steel wire rope 10 is wound on the shore bridge lifting appliance, and the lifting drum 8 rotates to drive the lifting steel wire rope 10 to pull the shore bridge lifting appliance to ascend or descend. The shore bridge is used for transferring the container, the weight of the container is larger when the container is fully loaded, and the energy consumption in the process of lifting the container is larger.

As shown in fig. 1, the lifting winding drum 8, the balance reduction gearbox 2 and the balance winding drum 3 are sequentially connected in a transmission manner, one end of the counterweight steel wire rope 4 is wound on the balance winding drum 3, the other end of the counterweight steel wire rope 4 is wound around the movable pulley 5 to be fixedly connected with the shore bridge structure, and the movable pulley 5 is fixedly arranged on the counterweight 6. The balance drum 3 drives the movable pulley 5 and the balance weight 6 to move up and down through the balance weight wire rope 4. During the operation process is transported to the container to bank bridge carrying on, plays to rise reel 8 and rotates under the effect of motor 7, plays to rise reel 8 simultaneously and drives balanced reel 3 through balanced reducing gear box 2 and rotate, moreover, balanced heavy 6 act on balanced reel 3 through balanced heavy wire rope 4 the moment of torsion with bank bridge dolly hoist and container play to rise the moment of torsion opposite direction on reel 8 through playing to rise wire rope 10 common action, when bank bridge hoist and container go up, balanced heavy 6 descends, when bank bridge hoist and container descend, balanced heavy 6 rises. The torque of the counterweight 6 acting on the balance winding drum 3 through the counterweight steel wire rope 4 can offset the torque of a part of bank bridge lifting appliance and containers acting on the lifting winding drum 8 through the lifting steel wire rope 10, and then the aim of saving energy and reducing consumption of the bank bridge is achieved by utilizing the vertical movement of the counterweight 6.

As shown in fig. 1, in this embodiment, the torque of the counterweight 6 acting on the balance drum 3 through the counterweight steel wire rope 4 is equal to the torque of the crane trolley lifting appliance and the empty container acting on the lifting drum 8 through the lifting steel wire rope 10, so that the weights of the crane trolley lifting appliance and the container can be offset without increasing a complex steel wire rope winding system, and energy saving is realized.

As shown in fig. 1, in this embodiment, a direction-changing pulley block 11 is further disposed between the balance drum 3 and the movable pulley 5, the direction-changing pulley block 11 is fixedly disposed on the quay crane structure and belongs to the fixed pulley, and the counterweight steel wire rope 4 is led out from the balance drum 3, passes through the direction-changing pulley block 11, and then extends to the movable pulley 5. The purpose of additionally arranging the direction-changing pulley block 11 is to change the extending direction of the counterweight steel wire rope 4, so that the arrangement positions of the counterweight winding drum 3 and the counterweight 6 can be conveniently adjusted. In this embodiment, balanced reel 3 sets up in the computer lab that is located bank bridge girder upper portion, and the unified management and the maintenance of being convenient for, and balanced heavy 6 sets up in the inside of bank bridge door leg stand, can effectively resist the interference of external factors such as harbour crosswind to balanced heavy 6 up-and-down motion, avoids causing extra accord with to equipment, prevents to produce the incident.

As shown in fig. 1, the hoisting mechanism 1 in this embodiment includes two motors 7 and another hoisting drum 8, and the two motors 7 and the hoisting drum 8 are respectively disposed on two sides of a hoisting reduction box 9. Similarly, the balance reduction box 2, the balance winding drum 3, the balance weight steel wire rope 4, the movable pulley 5, the balance weight 6 and the redirection pulley block 11 are also provided with two groups, and the two groups are symmetrically arranged on two sides of the hoisting mechanism 1, so that the stability of the shore bridge can be improved, and the influence on the structural safety of the shore bridge caused by the overweight of one side can be prevented.

The moving distance of the balance weight 6 can be adjusted by adjusting the reduction ratio of the balance reduction gearbox 2 in the embodiment, the reduction ratio of the balance reduction gearbox 2 influences the rotating speed of the balance winding drum 3, when the rotating speed of the lifting winding drum 8 is unchanged, the reduction ratio of the balance reduction gearbox 2 is larger, the rotating speed of the balance winding drum 3 is slower, and correspondingly, the distance of the up-down movement of the balance weight 6 is smaller. In the present embodiment, two balancing weights 6 are provided, and the weight of each balancing weight 6 is equal to 25 t.

The working principle of the invention is as follows: the balance reel 3 is arranged, the balance reel 3 is connected with the lifting reel 8 through the balance reduction box 2, the balance weight 6 is arranged, the torque of the balance weight 6 acting on the balance reel 3 through the balance weight steel wire rope 4 is opposite to the torque of the bank bridge trolley lifting appliance and the container acting on the lifting reel 8 through the lifting steel wire rope 10, the torque of the balance weight 6 acting on the balance reel 3 through the balance weight steel wire rope 4 counteracts the torque of a part of the bank bridge lifting appliance and the container acting on the lifting reel 8 through the lifting steel wire rope 10, and energy conservation and consumption reduction are achieved.

The steel wire rope 4 of the counterweight is easy to wind, and meanwhile, the length of the lifting reel 8 is prevented from being prolonged, so that the structure stability is facilitated.