A vibration-proof system for high-speed quay crane trolley

Abstract

The present invention discloses a vibration isolation system for a high-speed quay crane trolley, comprising a quay crane trolley frame, a wheel vibration isolation system, an anti-skewed wheel vibration isolation system and a traction wheel vibration isolation system, wherein the wheel vibration isolation system comprises a trolley wheel and a wheel vibration isolation device, the anti-skewed wheel vibration isolation system comprises an anti-skewed wheel, an anti-skewed wheel bracket and an anti-skewed wheel vibration isolation device, and the traction wheel vibration isolation system comprises a traction wheel, a traction wheel support and a traction wheel vibration isolation device. The present invention reduces the vibration amplitude of the high-speed quay crane trolley in the direction of extension of the quay crane beam, the direction perpendicular to the extension of the quay crane beam in the horizontal plane and the vertical direction, so that the quay crane trolley runs smoothly, reduces the extrusion and collision between the quay crane trolley and the quay crane beam, prolongs the service life of the quay crane trolley and the quay crane structure, creates conditions for further speeding up the quay crane trolley, and improves the efficiency of loading and unloading containers on the quay crane.

Description

Technical Field

[0001] The invention relates to the technical field of port terminal container loading and unloading equipment, in particular to a vibration-proof system for a high-speed quay crane trolley. Background Art

[0002] As the most important container loading and unloading equipment at the port terminal, the loading and unloading efficiency of the quay crane directly affects the work efficiency and operating costs of the port terminal. The quay crane uses a trolley that moves along the quay crane beam to complete the lifting, transfer and placement of containers. The running speed of the quay crane trolley along the quay crane beam and the running speed of the quay crane trolley in the vertical direction are directly related to the loading and unloading efficiency of the quay crane. The quay crane trolley has also been accelerated many times.

[0003] The running speed of the quay crane trolley is affected by many factors. The quay crane trolley itself has a large weight and a large track gauge. At the same time, the quay crane is a cantilever structure extending outward at both ends. When the quay crane trolley is running, it will vibrate due to the influence of factors such as starting and braking, lifting and lowering of the hoist, inertia load and external environment. When the quay crane trolley and the quay crane trolley hoist run too fast, the amplitude of the vibration increases, and the safe operation of the quay crane cannot be guaranteed. Excessive vibration of the quay crane trolley will also cause repeated collisions between the quay crane trolley and the quay crane beam and the quay crane structure, and the quay crane trolley track will be worn and squeezed, which will seriously affect the service life of the quay crane and increase safety hazards. At present, the movement speed of the quay crane trolley along the quay crane beam has been increased to 240m / min, and the lifting speed of the quay crane trolley hoist under heavy load conditions has been increased to 75m / min in the vertical direction. However, under the existing quay crane structure and working environment, the speed of the quay crane trolley has reached its limit and cannot be further increased.

[0004] When the quay crane trolley is running at high speed, there are mainly three types of vibration conditions, namely, vibration along the extension direction of the quay crane beam, vibration in the horizontal plane perpendicular to the extension direction of the quay crane beam, and vibration in the vertical direction. Therefore, it is necessary to develop a system that can control and weaken the vibration amplitude of the quay crane trolley in these three directions to provide conditions for speeding up the quay crane trolley. Summary of the invention

[0005] The object of the present invention is to provide a vibration isolation system for a high-speed quay crane trolley, which can effectively control the vibration of the quay crane trolley when it moves at high speed, reduce the vibration amplitude of the quay crane trolley from three directions, protect the quay crane trolley and the quay crane structure, provide conditions for increasing the running speed of the quay crane trolley and the lifting speed of the quay crane trolley hoist, and thus improve the working efficiency of the quay crane.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A vibration isolation system for a high-speed quay crane trolley includes a quay crane trolley frame, a wheel vibration isolation system, an anti-skewed wheel vibration isolation system and a traction wheel vibration isolation system. The wheel vibration isolation system includes a trolley wheel and a wheel vibration isolation device, one end of the wheel vibration isolation device is fixedly connected to the quay crane trolley frame, and the other end of the wheel vibration isolation device is fixedly connected to the rotating shaft of the trolley wheel. The anti-skewed wheel vibration isolation system includes an anti-skewed wheel, an anti-skewed wheel bracket and an anti-skewed wheel vibration isolation device, the anti-skewed wheel is fixedly arranged in the anti-skewed wheel bracket, one end of the anti-skewed wheel vibration isolation device is fixedly connected to the quay crane trolley frame, and the other end of the anti-skewed wheel vibration isolation device is fixedly connected to the anti-skewed wheel bracket. The traction wheel vibration isolation system includes a traction wheel, a traction wheel support and a traction wheel vibration isolation device, the traction wheel support is connected to the rotating shaft of the traction wheel, one end of the traction wheel vibration isolation device is fixedly connected to the quay crane trolley frame, and the other end of the traction wheel vibration isolation device is fixedly connected to the traction wheel support.

[0007] When the quay crane trolley is running, the wheels and anti-skew wheels of the trolley directly contact the track on the quay crane beam. The faster the speed of the quay crane trolley, the more difficult it is to maintain stability. The wheels and anti-skew wheels of the trolley collide and squeeze with the track on the quay crane beam, which will increase the vibration amplitude of the quay crane trolley and threaten the safe operation of the quay crane trolley. The wheels and anti-skew wheels of the trolley in the present invention are not directly fixedly connected to the quay crane trolley frame, but are connected to the quay crane trolley frame through wheel vibration-isolating devices and anti-skew wheel vibration-isolating devices. The wheel vibration-isolating devices and anti-skew wheel vibration-isolating devices play a buffering role, so that the vibration of the quay crane trolley tends to be stable, and finally maintains stable operation, achieving the effect of vibration reduction and vibration avoidance. The traction wire rope drives the quay crane trolley to move along the quay crane beam through the traction wheel. When the running speed of the quay crane trolley is too fast, due to the start-up braking and the deformation of the traction wire rope, the quay crane trolley will vibrate along the extension direction of the quay crane beam, thereby driving the quay crane trolley hoist below to sway and shake, affecting the safe operation of the quay crane trolley. The present invention adds a traction wheel vibration isolating device between the traction wheel and the quay crane trolley frame, and also utilizes the buffering of the traction wheel vibration isolating device to gradually weaken the vibration of the quay crane trolley along the extension direction of the quay crane beam, thereby maintaining stable operation.

[0008] The quay crane trolley hoist is connected to the quay crane trolley frame through a lifting wire rope and a lifting pulley block. If the quay crane trolley hoist rises and falls too quickly, the lifting pulley block will vibrate in the vertical direction. In order to prevent the lifting pulley block from causing the entire quay crane trolley to vibrate in the vertical direction, and even cause the quay crane trolley to overturn, the present invention provides a lifting pulley block vibration isolation system, which includes a lifting pulley block and a lifting pulley block vibration isolation device. The lifting pulley block is separately arranged from the quay crane trolley frame, one end of the lifting pulley block vibration isolation device is fixedly connected to the quay crane trolley frame, and the other end of the lifting pulley block vibration isolation device is fixedly connected to the rotating shaft of the lifting pulley block.

[0009] When the quay crane trolley hoist completes the lifting and lowering actions, the tension on the lifting wire rope will change. The force is buffered by the lifting pulley block vibration isolation device, which reduces the relative displacement between the lifting pulley block and the quay crane trolley frame, thereby making the quay crane trolley run smoothly and improving the operating stability of the quay crane trolley.

[0010] In the aforementioned vibration isolation system for high-speed quay crane trolleys, the wheel vibration isolation device includes a connecting seat, an oil-gas damper, a rubber shock absorber and a connecting rod. The connecting seat is fixedly connected to the quay crane trolley frame, one end of the oil-gas damper and the rubber shock absorber is hinged to the connecting seat, and the other end of the oil-gas damper and the rubber shock absorber is fixedly connected via a connecting rod, and the oil-gas damper and the rubber shock absorber are both arranged vertically, and the connecting rod is also fixedly connected to the rotating shaft of the trolley wheel. The acting force between the trolley wheel and the quay crane track is in the vertical direction, and the vibration of the trolley wheel is also mainly in the vertical direction. Therefore, the oil-gas damper and the rubber shock absorber in the wheel vibration isolation device are arranged vertically. When the quay crane trolley vibrates, the wheel vibration isolation device generates a force to suppress the vibration, so that the trolley wheel fits tightly with the quay crane trolley track, and the quay crane trolley runs stably. The function of the connecting rod is to prevent the inconsistent movement amplitude of the oil-gas damper and the rubber shock absorber, which causes the trolley wheel to shake.

[0011] In the aforementioned vibration-proof device for high-speed quay crane trolley, the anti-skewed wheel vibration-proof device includes a connecting seat, an oil-gas damper and a rubber shock absorber, the connecting seat is fixedly connected to the quay crane trolley frame, one end of the oil-gas damper and the rubber shock absorber is hinged to the connecting seat, and the other end of the oil-gas damper and the rubber shock absorber is fixedly connected to the anti-skewed wheel bracket, the oil-gas damper and the rubber shock absorber are both arranged horizontally, and the oil-gas damper and the rubber shock absorber are perpendicular to the extension direction of the quay crane beam. The arc side of the anti-skewed wheel collides with the side of the rail head of the running track of the quay crane trolley. In order to prevent the anti-skewed wheel from repeatedly squeezing the side of the rail head of the quay crane trolley track, causing the quay crane trolley to vibrate in the horizontal plane perpendicular to the extension direction of the quay crane beam, the oil-gas damper and the rubber shock absorber in the anti-skewed wheel vibration-proof device are arranged horizontally and perpendicular to the extension direction of the quay crane beam.

[0012] The traction wheel vibration isolation device described in the present invention comprises a connection seat, an oil-gas damper and a rubber shock absorber, wherein the connection seat is fixedly connected to the frame of the quay crane trolley, one end of the oil-gas damper and the rubber shock absorber is hinged to the connection seat, and the other end of the oil-gas damper and the rubber shock absorber is fixedly connected to the traction wheel support, and the oil-gas damper and the rubber shock absorber are arranged in parallel with the extension direction of the quay crane beam. The function of the traction wheel vibration isolation device is to prevent the quay crane trolley from vibrating in the direction of the quay crane beam, therefore, the direction of the oil-gas damper and the rubber shock absorber in the traction wheel vibration isolation device is parallel to the extension direction of the quay crane beam.

[0013] The hoisting pulley block vibration-proof device described in the present invention comprises a connecting seat, an oil-gas damper, a rubber shock absorber and a connecting rod, wherein the connecting seat is fixedly connected to the trolley frame of the quay crane, one end of the oil-gas damper and the rubber shock absorber is hinged to the connecting seat, and the other end of the oil-gas damper and the rubber shock absorber is fixedly connected via a connecting rod, and the oil-gas damper and the rubber shock absorber are both arranged vertically, and the connecting rod is also fixedly connected to the rotating shaft of the hoisting pulley block. The hoisting pulley block will move in the vertical direction with the lifting and lowering of the trolley hoist, so the oil-gas damper and the rubber shock absorber are arranged in the vertical direction.

[0014] In the aforementioned vibration isolation system for high-speed quay crane vehicles, the oil-gas damper includes a piston rod, a piston and a cylinder body. One end of the piston rod is hinged to the connecting seat, and the other end of the piston rod is connected to the piston. The piston is arranged in the cylinder body. The cylinder body includes an air-filling chamber and an oil-filling chamber. The air-filling chamber is located on the side where the piston is connected to the piston rod, and the oil-filling chamber is located on the side of the piston away from the piston rod. When the oil-gas damper is stretched or compressed, the piston rod pushes the piston and compresses the cylinder body. The pressure in the air-filling chamber and the oil-filling chamber changes, generating forces in opposite directions to suppress the stretching or compression of the oil-gas damper. The effect of the oil-gas damper is the same as that of the coil spring.

[0015] In the aforementioned vibration-proof system for high-speed quay crane trolleys, the rubber shock absorber includes a spring rod, a rubber spring and a base, one end of the spring rod is hinged to the connecting seat, the other end of the spring rod is connected to the rubber spring, the rubber spring is connected to the base, and the rubber spring is arranged in the base. The present invention uses oil-gas damping and rubber shock absorbers to cooperate with each other, which can not only alleviate the heat caused by repeated compression of oil-gas damping, but also overcome the problems of low stiffness and large deformation of rubber shock absorbers.

[0016] To ensure the stable operation of the quay crane trolley frame, the number of wheel vibration isolating devices is equal to the number of trolley wheels, the number of anti-skew wheel vibration isolating devices is equal to the number of anti-skew wheels, and the number of traction wheel vibration isolating devices is equal to the number of traction wheels, ensuring that each trolley wheel, anti-skew wheel and traction wheel is protected from vibration.

[0017] The lifting pulley block is arranged in the middle part of the quay crane trolley frame. The lifting pulley block in the present invention is separately arranged from the quay crane trolley frame. In order to ensure the structural stability and force balance of the lifting pulley block, it is necessary to provide lifting pulley block vibration isolation devices on both sides of the lifting pulley block. The number of the lifting pulley block vibration isolation devices is twice the number of the lifting pulley blocks.

[0018] Compared with the prior art, the benefits of the present invention lie in that it provides a vibration isolation system for a high-speed quay crane trolley, which reduces the vibration amplitude of the high-speed quay crane trolley in the direction of extension of the quay crane beam, the direction perpendicular to the extension of the quay crane beam in the horizontal plane, and the vertical direction, so that the quay crane trolley can run smoothly, and the extrusion and collision between the quay crane trolley and the quay crane beam are reduced, thereby extending the service life of the quay crane trolley and the quay crane structure, creating conditions for further speeding up the quay crane trolley, so that the movement speed of the quay crane trolley along the quay crane beam can be increased to 380m / min, and the lifting speed of the quay crane trolley hoist in the vertical direction can be increased to 130m / min, thereby improving the efficiency of loading and unloading containers on the quay crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the frame of the quay crane trolley in the present invention;

[0020] Figure 2 This is a front view of the frame of the quay crane trolley in the present invention;

[0021] Figure 3 It is a left view of the frame of the quay crane trolley in the present invention;

[0022] Figure 4 is a top view of the wheel vibration isolation system of the present invention;

[0023] Figure 5 is a front view of the wheel vibration isolation system of the present invention;

[0024] Figure 6 is a left side view of the wheel vibration isolation system of the present invention;

[0025] Figure 7 is a top view of the anti-skew wheel vibration-isolating system of the present invention;

[0026] Figure 8 It is a front view of the anti-skew wheel vibration-proof system of the present invention;

[0027] Fig. 9 is a top view of the traction wheel vibration isolation system of the present invention;

[0028] Fig.10 It is a top view of the hoisting pulley block vibration isolation system of the present invention;

[0029] Fig.11 It is a front view of the hoisting pulley block vibration isolation system of the present invention;

[0030] Fig.12 It is a left side view of the hoisting pulley block vibration isolation system of the present invention;

[0031] Fig.13 It is a structural schematic diagram of the oil-gas damping in the present invention;

[0032] Fig.14 It is a structural schematic diagram of the rubber vibration damper in the present invention.

[0033] The meaning of the accompanying drawings: 1-shore crane trolley frame, 2-wheel vibration isolation system, 3-anti-skew wheel vibration isolation system, 4-traction wheel vibration isolation system, 5-trolley wheel, 6-wheel vibration isolation device, 7-anti-skew wheel, 8-anti-skew wheel bracket, 9-anti-skew wheel vibration isolation device, 10-traction wheel, 11-traction wheel support, 12-traction wheel vibration isolation device, 13-lifting pulley block vibration isolation system, 14-lifting pulley block, 15-lifting pulley block vibration isolation device, 16-connecting seat, 17-oil and gas damping, 18-rubber shock absorber, 19-connecting rod, 20-piston rod, 21-piston, 22-cylinder body, 23-air filling chamber, 24-oil filling chamber, 25-spring rod, 26-rubber spring, 27-base.

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0035] Embodiment 1 of the present invention: Figure 1 , Figure 2 or Figure 3 As shown, a vibration isolation system for a high-speed quay crane trolley comprises a quay crane trolley frame 1, a wheel vibration isolation system 2, an anti-skewed wheel vibration isolation system 3 and a traction wheel vibration isolation system 4, wherein the wheel vibration isolation system 2 comprises a trolley wheel 5 and a wheel vibration isolation device 6, one end of the wheel vibration isolation device 6 is fixedly connected to the quay crane trolley frame 1, and the other end of the wheel vibration isolation device 6 is fixedly connected to the rotating shaft of the trolley wheel 5. The anti-skewed wheel vibration isolation system 3 comprises an anti-skewed wheel 7, an anti-skewed wheel bracket 8 and an anti-skewed wheel vibration isolation device 9, wherein the anti-skewed wheel 7 is fixedly arranged in the anti-skewed wheel bracket 8, one end of the anti-skewed wheel vibration isolation device 9 is fixedly connected to the quay crane trolley frame 1, and the other end of the anti-skewed wheel vibration isolation device 9 is fixedly connected to the anti-skewed wheel bracket 8. The traction wheel vibration isolation system 4 includes a traction wheel 10, a traction wheel support 11 and a traction wheel vibration isolation device 12. The traction wheel support 11 is connected to the rotating shaft of the traction wheel 10, one end of the traction wheel vibration isolation device 12 is fixedly connected to the quay crane trolley frame 1, and the other end of the traction wheel vibration isolation device 12 is fixedly connected to the traction wheel support 11.

[0036] like Figure 4 , Figure 5 or Figure 6As shown, the wheel vibration isolating device 6 described in this embodiment includes a connecting seat 16, an oil-gas damper 17, a rubber shock absorber 18 and a connecting rod 19, wherein the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other end of the oil-gas damper 17 and the rubber shock absorber 18 is fixedly connected via the connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are both arranged vertically, and the connecting rod 19 is also fixedly connected to the rotating shaft of the trolley wheel 5. The trolley wheel 5 and the track of the quay crane trolley squeeze each other, and the vibration of the quay crane trolley will cause the pressure of the trolley wheel 5 on the quay crane trolley track to change, and even cause the quay crane trolley to bounce. The oil-gas damper 17 and the rubber shock absorber 18 in the wheel vibration isolating device 6 are arranged vertically, and the pressure change of the trolley wheel 5 on the quay crane trolley track is weakened by the vertical force, so that the trolley wheel 5 fits closely with the track of the quay crane trolley, and the quay crane trolley runs stably. Since the present embodiment adopts both the oil-gas damper 17 and the rubber shock absorber 18, in order to prevent the deformation of the two from being inconsistent and to facilitate the connection, the present embodiment also provides a connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are fixed by the connecting rod 19 and connected to the rotating shaft of the trolley wheel 5 through the connecting rod 19.

[0037] like Figure 7 or Figure 8 As shown, the anti-wheel deviation vibration isolation device 9 described in this embodiment includes a connecting seat 16, an oil and gas damper 17 and a rubber shock absorber 18, the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil and gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other end of the oil and gas damper 17 and the rubber shock absorber 18 is fixedly connected to the anti-wheel deviation bracket 8, the oil and gas damper 17 and the rubber shock absorber 18 are both horizontally arranged, and the oil and gas damper 17 and the rubber shock absorber 18 are perpendicular to the extension direction of the quay crane beam. The arc-shaped side surface of the anti-skew wheel 7 contacts the side surface of the rail head of the quay crane trolley track to prevent the quay crane trolley from deviating from the track. The direction of the force between the anti-skew wheel 7 and the quay crane trolley track is in the horizontal plane perpendicular to the extension direction of the quay crane beam. The oil and gas damping 17 and the rubber shock absorber 18 in the anti-skew wheel vibration isolation device 9 are arranged in the same direction. Their function is to weaken the vibration of the quay crane trolley in the horizontal plane perpendicular to the extension direction of the quay crane beam, and prevent the anti-skew wheel 7 from repeatedly squeezing and colliding with the quay crane trolley track.

[0038] like Fig. 9As shown, the traction wheel vibration isolation device 12 described in this embodiment includes a connection seat 16, an oil-gas damper 17 and a rubber shock absorber 18. The connection seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connection seat 16, and the other end of the oil-gas damper 17 and the rubber shock absorber 18 is fixedly connected to the traction wheel support 11, and the oil-gas damper 17 and the rubber shock absorber 18 are arranged parallel to the extension direction of the quay crane beam. The traction wire rope drives the quay crane trolley to move along the quay crane beam through the traction wheel 10. In order to reduce the vibration amplitude of the quay crane trolley along the extension direction of the quay crane beam, the direction of the oil-gas damper 17 and the rubber shock absorber 18 in the traction wheel vibration isolation device 12 is parallel to the extension direction of the quay crane beam.

[0039] like Fig.13 As shown, the oil-gas damper 17 includes a piston rod 20, a piston 21 and a cylinder body 22. One end of the piston rod 20 is hinged to the connecting seat 16, and the other end of the piston rod 20 is connected to the piston 21. The piston 21 is arranged in the cylinder body 22. The cylinder body 22 includes an air filling chamber 23 and an oil filling chamber 24. The air filling chamber 23 is located on the side where the piston 21 is connected to the piston rod 20, and the oil filling chamber 24 is located on the side of the piston 21 away from the piston rod 20. When the oil-gas damper 17 is stretched or compressed, the piston rod 20 pushes the piston 21 to compress the cylinder body 22, and the pressure in the cylinder body 22 changes. The function of the oil-gas damper 17 is the same as that of the coil spring.

[0040] like Fig.14 As shown, the rubber shock absorber 18 includes a spring rod 25, a rubber spring 26 and a base 27, one end of the spring rod 25 is hinged to the connecting seat 16, the other end of the spring rod 25 is connected to the rubber spring 26, the rubber spring 26 is connected to the base 27, and the rubber spring 26 is arranged in the base 27. In this embodiment, the oil-gas damper 17 and the rubber shock absorber 18 are used at the same time, which can not only alleviate the heat caused by the repeated compression of the oil-gas damper 17, but also overcome the problems of low stiffness and large deformation of the rubber shock absorber 18.

[0041] Embodiment 2 of the present invention: Figure 1 , Figure 2 or Figure 3As shown, a vibration isolation system for a high-speed quay crane trolley comprises a quay crane trolley frame 1, a wheel vibration isolation system 2, an anti-skewed wheel vibration isolation system 3 and a traction wheel vibration isolation system 4, wherein the wheel vibration isolation system 2 comprises a trolley wheel 5 and a wheel vibration isolation device 6, one end of the wheel vibration isolation device 6 is fixedly connected to the quay crane trolley frame 1, and the other end of the wheel vibration isolation device 6 is fixedly connected to the rotating shaft of the trolley wheel 5. The anti-skewed wheel vibration isolation system 3 comprises an anti-skewed wheel 7, an anti-skewed wheel bracket 8 and an anti-skewed wheel vibration isolation device 9, wherein the anti-skewed wheel 7 is fixedly arranged in the anti-skewed wheel bracket 8, one end of the anti-skewed wheel vibration isolation device 9 is fixedly connected to the quay crane trolley frame 1, and the other end of the anti-skewed wheel vibration isolation device 9 is fixedly connected to the anti-skewed wheel bracket 8. The traction wheel vibration isolation system 4 includes a traction wheel 10, a traction wheel support 11 and a traction wheel vibration isolation device 12. The traction wheel support 11 is connected to the rotating shaft of the traction wheel 10, one end of the traction wheel vibration isolation device 12 is fixedly connected to the quay crane trolley frame 1, and the other end of the traction wheel vibration isolation device 12 is fixedly connected to the traction wheel support 11.

[0042] like Figure 2 or Figure 3 As shown, the quay crane trolley hoist is connected to the quay crane trolley through a lifting wire rope and a lifting pulley block. When the tension of the lifting wire rope changes, the lifting pulley block 14 will vibrate. In order to avoid such vibration and control the tension change on the lifting wire rope, a lifting pulley block vibration isolation system 13 is also provided in this embodiment. The lifting pulley block vibration isolation system 13 includes a lifting pulley block 14 and a lifting pulley block vibration isolation device 15. The lifting pulley block 14 is separately arranged from the quay crane trolley frame 1, one end of the lifting pulley block vibration isolation device 15 is fixedly connected to the quay crane trolley frame 1, and the other end of the lifting pulley block vibration isolation device 15 is fixedly connected to the rotating shaft of the lifting pulley block 14.

[0043] like Figure 4 , Figure 5 or Figure 6As shown, the wheel vibration isolating device 6 described in this embodiment includes a connecting seat 16, an oil-gas damper 17, a rubber shock absorber 18 and a connecting rod 19, wherein the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other end of the oil-gas damper 17 and the rubber shock absorber 18 is fixedly connected via the connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are both arranged vertically, and the connecting rod 19 is also fixedly connected to the rotating shaft of the trolley wheel 5. The trolley wheel 5 and the track of the quay crane trolley squeeze each other, and the vibration of the quay crane trolley will cause the pressure of the trolley wheel 5 on the quay crane trolley track to change, and even cause the quay crane trolley to bounce. The oil-gas damper 17 and the rubber shock absorber 18 in the wheel vibration isolating device 6 are arranged vertically, and the pressure change of the trolley wheel 5 on the quay crane trolley track is weakened by the vertical force, so that the trolley wheel 5 fits closely with the track of the quay crane trolley, and the quay crane trolley runs stably. Since the present embodiment adopts both the oil-gas damper 17 and the rubber shock absorber 18, in order to prevent the deformation of the two from being inconsistent and to facilitate the connection, the present embodiment also provides a connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are fixed by the connecting rod 19 and connected to the rotating shaft of the trolley wheel 5 through the connecting rod 19.

[0044] like Figure 7 or Figure 8 As shown, the anti-wheel deviation vibration isolation device 9 described in this embodiment includes a connecting seat 16, an oil and gas damper 17 and a rubber shock absorber 18, the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil and gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other end of the oil and gas damper 17 and the rubber shock absorber 18 is fixedly connected to the anti-wheel deviation bracket 8, the oil and gas damper 17 and the rubber shock absorber 18 are both horizontally arranged, and the oil and gas damper 17 and the rubber shock absorber 18 are perpendicular to the extension direction of the quay crane beam. The arc-shaped side surface of the anti-skew wheel 7 contacts the side surface of the rail head of the quay crane trolley track to prevent the quay crane trolley from deviating from the track. The direction of the force between the anti-skew wheel 7 and the quay crane trolley track is in the horizontal plane perpendicular to the extension direction of the quay crane beam. The oil and gas damping 17 and the rubber shock absorber 18 in the anti-skew wheel vibration isolation device 9 are arranged in the same direction. Their function is to weaken the vibration of the quay crane trolley in the horizontal plane perpendicular to the extension direction of the quay crane beam, and prevent the anti-skew wheel 7 from repeatedly squeezing and colliding with the quay crane trolley track.

[0045] like Fig. 9As shown, the traction wheel vibration isolation device 12 described in this embodiment includes a connection seat 16, an oil-gas damper 17 and a rubber shock absorber 18. The connection seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connection seat 16, and the other end of the oil-gas damper 17 and the rubber shock absorber 18 is fixedly connected to the traction wheel support 11, and the oil-gas damper 17 and the rubber shock absorber 18 are arranged parallel to the extension direction of the quay crane beam. The traction wire rope drives the quay crane trolley to move along the quay crane beam through the traction wheel 10. In order to reduce the vibration amplitude of the quay crane trolley along the extension direction of the quay crane beam, the direction of the oil-gas damper 17 and the rubber shock absorber 18 in the traction wheel vibration isolation device 12 is parallel to the extension direction of the quay crane beam.

[0046] like Fig.10 , Fig.11 or Fig.12 As shown, the hoisting pulley block vibration isolation device 15 described in this embodiment includes a connecting seat 16, an oil-gas damper 17, a rubber shock absorber 18 and a connecting rod 19, wherein the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other ends of the oil-gas damper 17 and the rubber shock absorber 18 are fixedly connected via the connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are both arranged vertically, and the connecting rod 19 is also fixedly connected to the rotating shaft of the hoisting pulley block 14. In order to reduce the vibration of the hoisting pulley block 14 in the vertical direction, the oil-gas damper 17 and the rubber shock absorber 18 in the hoisting pulley block vibration isolation device 15 are arranged along the housing direction.

[0047] like Fig.13 As shown, the oil-gas damper 17 includes a piston rod 20, a piston 21 and a cylinder body 22. One end of the piston rod 20 is hinged to the connecting seat 16, and the other end of the piston rod 20 is connected to the piston 21. The piston 21 is arranged in the cylinder body 22. The cylinder body 22 includes an air filling chamber 23 and an oil filling chamber 24. The air filling chamber 23 is located on the side where the piston 21 is connected to the piston rod 20, and the oil filling chamber 24 is located on the side of the piston 21 away from the piston rod 20. When the oil-gas damper 17 is stretched or compressed, the piston rod 20 pushes the piston 21 to compress the cylinder body 22, and the pressure in the cylinder body 22 changes. The function of the oil-gas damper 17 is the same as that of the coil spring.

[0048] like Fig.14 As shown, the rubber shock absorber 18 includes a spring rod 25, a rubber spring 26 and a base 27, one end of the spring rod 25 is hinged to the connecting seat 16, the other end of the spring rod 25 is connected to the rubber spring 26, the rubber spring 26 is connected to the base 27, and the rubber spring 26 is arranged in the base 27. In this embodiment, the oil-gas damper 17 and the rubber shock absorber 18 are used at the same time, which can not only alleviate the heat caused by the repeated compression of the oil-gas damper 17, but also overcome the problems of low stiffness and large deformation of the rubber shock absorber 18.

[0049] Embodiment 3 of the present invention: Figure 1 , Figure 2 or Figure 3 As shown, a vibration isolation system for a high-speed quay crane trolley comprises a quay crane trolley frame 1, a wheel vibration isolation system 2, an anti-skewed wheel vibration isolation system 3 and a traction wheel vibration isolation system 4, wherein the wheel vibration isolation system 2 comprises a trolley wheel 5 and a wheel vibration isolation device 6, one end of the wheel vibration isolation device 6 is fixedly connected to the quay crane trolley frame 1, and the other end of the wheel vibration isolation device 6 is fixedly connected to the rotating shaft of the trolley wheel 5. The anti-skewed wheel vibration isolation system 3 comprises an anti-skewed wheel 7, an anti-skewed wheel bracket 8 and an anti-skewed wheel vibration isolation device 9, wherein the anti-skewed wheel 7 is fixedly arranged in the anti-skewed wheel bracket 8, one end of the anti-skewed wheel vibration isolation device 9 is fixedly connected to the quay crane trolley frame 1, and the other end of the anti-skewed wheel vibration isolation device 9 is fixedly connected to the anti-skewed wheel bracket 8. The traction wheel vibration isolation system 4 includes a traction wheel 10, a traction wheel support 11 and a traction wheel vibration isolation device 12. The traction wheel support 11 is connected to the rotating shaft of the traction wheel 10, one end of the traction wheel vibration isolation device 12 is fixedly connected to the quay crane trolley frame 1, and the other end of the traction wheel vibration isolation device 12 is fixedly connected to the traction wheel support 11.

[0050] like Figure 2 or Figure 3 As shown, the quay crane trolley hoist is connected to the quay crane trolley through a lifting wire rope and a lifting pulley block. When the tension of the lifting wire rope changes, the lifting pulley block 14 will vibrate. In order to avoid such vibration and control the tension change on the lifting wire rope, a lifting pulley block vibration isolation system 13 is also provided in this embodiment. The lifting pulley block vibration isolation system 13 includes a lifting pulley block 14 and a lifting pulley block vibration isolation device 15. The lifting pulley block 14 is separately arranged from the quay crane trolley frame 1, one end of the lifting pulley block vibration isolation device 15 is fixedly connected to the quay crane trolley frame 1, and the other end of the lifting pulley block vibration isolation device 15 is fixedly connected to the rotating shaft of the lifting pulley block 14.

[0051] like Figure 4 , Figure 5 or Figure 6As shown, the wheel vibration isolating device 6 described in this embodiment includes a connecting seat 16, an oil-gas damper 17, a rubber shock absorber 18 and a connecting rod 19, wherein the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other end of the oil-gas damper 17 and the rubber shock absorber 18 is fixedly connected via the connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are both arranged vertically, and the connecting rod 19 is also fixedly connected to the rotating shaft of the trolley wheel 5. The trolley wheel 5 and the track of the quay crane trolley squeeze each other, and the vibration of the quay crane trolley will cause the pressure of the trolley wheel 5 on the quay crane trolley track to change, and even cause the quay crane trolley to bounce. The oil-gas damper 17 and the rubber shock absorber 18 in the wheel vibration isolating device 6 are arranged vertically, and the pressure change of the trolley wheel 5 on the quay crane trolley track is weakened by the vertical force, so that the trolley wheel 5 fits closely with the track of the quay crane trolley, and the quay crane trolley runs stably. Since the present embodiment adopts both the oil-gas damper 17 and the rubber shock absorber 18, in order to prevent the deformation of the two from being inconsistent and to facilitate the connection, the present embodiment also provides a connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are fixed by the connecting rod 19 and connected to the rotating shaft of the trolley wheel 5 through the connecting rod 19.

[0052] like Figure 7 or Figure 8 As shown, the anti-wheel deviation vibration isolation device 9 described in this embodiment includes a connecting seat 16, an oil and gas damper 17 and a rubber shock absorber 18, the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil and gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other end of the oil and gas damper 17 and the rubber shock absorber 18 is fixedly connected to the anti-wheel deviation bracket 8, the oil and gas damper 17 and the rubber shock absorber 18 are both horizontally arranged, and the oil and gas damper 17 and the rubber shock absorber 18 are perpendicular to the extension direction of the quay crane beam. The arc-shaped side surface of the anti-skew wheel 7 contacts the side surface of the rail head of the quay crane trolley track to prevent the quay crane trolley from deviating from the track. The direction of the force between the anti-skew wheel 7 and the quay crane trolley track is in the horizontal plane perpendicular to the extension direction of the quay crane beam. The oil and gas damping 17 and the rubber shock absorber 18 in the anti-skew wheel vibration isolation device 9 are arranged in the same direction. Their function is to weaken the vibration of the quay crane trolley in the horizontal plane perpendicular to the extension direction of the quay crane beam, and prevent the anti-skew wheel 7 from repeatedly squeezing and colliding with the quay crane trolley track.

[0053] like Fig. 9As shown, the traction wheel vibration isolation device 12 described in this embodiment includes a connection seat 16, an oil-gas damper 17 and a rubber shock absorber 18. The connection seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connection seat 16, and the other end of the oil-gas damper 17 and the rubber shock absorber 18 is fixedly connected to the traction wheel support 11, and the oil-gas damper 17 and the rubber shock absorber 18 are arranged parallel to the extension direction of the quay crane beam. The traction wire rope drives the quay crane trolley to move along the quay crane beam through the traction wheel 10. In order to reduce the vibration amplitude of the quay crane trolley along the extension direction of the quay crane beam, the direction of the oil-gas damper 17 and the rubber shock absorber 18 in the traction wheel vibration isolation device 12 is parallel to the extension direction of the quay crane beam.

[0054] like Fig.10 , Fig.11 or Fig.12 As shown, the hoisting pulley block vibration isolation device 15 described in this embodiment includes a connecting seat 16, an oil-gas damper 17, a rubber shock absorber 18 and a connecting rod 19, wherein the connecting seat 16 is fixedly connected to the quay crane trolley frame 1, one end of the oil-gas damper 17 and the rubber shock absorber 18 is hinged to the connecting seat 16, and the other ends of the oil-gas damper 17 and the rubber shock absorber 18 are fixedly connected via the connecting rod 19, and the oil-gas damper 17 and the rubber shock absorber 18 are both arranged vertically, and the connecting rod 19 is also fixedly connected to the rotating shaft of the hoisting pulley block 14. In order to reduce the vibration of the hoisting pulley block 14 in the vertical direction, the oil-gas damper 17 and the rubber shock absorber 18 in the hoisting pulley block vibration isolation device 15 are arranged along the housing direction.

[0055] like Fig.13 As shown, the oil-gas damper 17 includes a piston rod 20, a piston 21 and a cylinder body 22. One end of the piston rod 20 is hinged to the connecting seat 16, and the other end of the piston rod 20 is connected to the piston 21. The piston 21 is arranged in the cylinder body 22. The cylinder body 22 includes an air filling chamber 23 and an oil filling chamber 24. The air filling chamber 23 is located on the side where the piston 21 is connected to the piston rod 20, and the oil filling chamber 24 is located on the side of the piston 21 away from the piston rod 20. When the oil-gas damper 17 is stretched or compressed, the piston rod 20 pushes the piston 21 to compress the cylinder body 22, and the pressure in the cylinder body 22 changes. The function of the oil-gas damper 17 is the same as that of the coil spring.

[0056] like Fig.14 As shown, the rubber shock absorber 18 includes a spring rod 25, a rubber spring 26 and a base 27, one end of the spring rod 25 is hinged to the connecting seat 16, the other end of the spring rod 25 is connected to the rubber spring 26, the rubber spring 26 is connected to the base 27, and the rubber spring 26 is arranged in the base 27. In this embodiment, the oil-gas damper 17 and the rubber shock absorber 18 are used at the same time, which can not only alleviate the heat caused by the repeated compression of the oil-gas damper 17, but also overcome the problems of low stiffness and large deformation of the rubber shock absorber 18.

[0057] like Figure 1 As shown, the wheel vibration isolating devices 6 and the trolley wheels 5 described in this embodiment are four, the anti-skew wheel vibration isolating devices 9 and the anti-skew wheels 7 are four, the traction wheel vibration isolating devices 12 and the traction wheels 10 are four, the lifting pulley block 14 has four groups, and the lifting pulley block vibration isolating devices 15 are arranged on both sides of the lifting pulley block 14, with a total of eight groups.

[0058] The working principle of the present invention is as follows: the quay crane trolley will vibrate when running at high speed. The faster the running speed, the greater the vibration amplitude. In order to ensure the safe operation of the quay crane trolley, the quay crane trolley cannot be further accelerated. Therefore, controlling and reducing the vibration amplitude of the quay crane trolley and ensuring the smooth operation of the quay crane trolley are important prerequisites for achieving the speed increase of the quay crane trolley.

[0059] The vibration of the quay crane trolley when running at high speed can be divided into three directions, namely the vertical direction, the extension direction of the quay crane beam and the direction perpendicular to the quay crane beam in the horizontal plane. The vibration of the quay crane trolley in the vertical direction is controlled by the wheel vibration isolation system 2 and the lifting pulley block vibration isolation system 13 to ensure that the trolley wheel 5 is close to the quay crane trolley track, and at the same time prevent the change in the tension of the lifting wire rope from driving the quay crane trolley to vibrate in the vertical direction. The vibration of the quay crane trolley in the extension direction of the quay crane beam is controlled by the traction wheel vibration isolation system 4, and the vibration of the quay crane trolley in the horizontal plane perpendicular to the quay crane beam is controlled by the anti-skew wheel vibration isolation system 3. At the same time, the quay crane trolley frame 1 is only connected to the vibration isolation device and does not contact the quay crane beam, etc., to ensure the stable movement of the quay crane trolley frame 1.

Claims

1. A vibration isolation system for a high-speed quay crane vehicle, characterized in that: The invention comprises a quay crane trolley frame (1), a wheel vibration isolation system (2), an anti-skewed wheel vibration isolation system (3) and a traction wheel vibration isolation system (4); the wheel vibration isolation system (2) comprises a trolley wheel (5) and a wheel vibration isolation device (6); one end of the wheel vibration isolation device (6) is fixedly connected to the quay crane trolley frame (1), and the other end of the wheel vibration isolation device (6) is fixedly connected to the rotating shaft of the trolley wheel (5); the anti-skewed wheel vibration isolation system (3) comprises an anti-skewed wheel (7), an anti-skewed wheel bracket (8) and an anti-skewed wheel vibration isolation device (9); the anti-skewed wheel (7) is fixedly arranged on the anti-skewed wheel bracket ( 8), one end of the anti-skewed wheel vibration isolating device (9) is fixedly connected to the quay crane trolley frame (1), and the other end of the anti-skewed wheel vibration isolating device (9) is fixedly connected to the anti-skewed wheel bracket (8); the traction wheel vibration isolating system (4) comprises a traction wheel (10), a traction wheel support (11) and a traction wheel vibration isolating device (12), the traction wheel support (11) is connected to the rotating shaft of the traction wheel (10), one end of the traction wheel vibration isolating device (12) is fixedly connected to the quay crane trolley frame (1), and the other end of the traction wheel vibration isolating device (12) is fixedly connected to the traction wheel support (11); The vibration isolation system also includes a lifting pulley block vibration isolation system (13), wherein the lifting pulley block vibration isolation system (13) includes a lifting pulley block (14) and a lifting pulley block vibration isolation device (15), wherein the lifting pulley block (14) is separately arranged from the quay crane trolley frame (1), one end of the lifting pulley block vibration isolation device (15) is fixedly connected to the quay crane trolley frame (1), and the other end of the lifting pulley block vibration isolation device (15) is fixedly connected to the rotating shaft of the lifting pulley block (14).

2. The vibration isolation system for high-speed quay crane vehicle according to claim 1 is characterized in that: The wheel vibration isolation device (6) comprises a connecting seat (16), an oil-gas damper (17), a rubber shock absorber (18) and a connecting rod (19); the connecting seat (16) is fixedly connected to the quay crane trolley frame (1); one end of the oil-gas damper (17) and the rubber shock absorber (18) are hinged to the connecting seat (16); the other ends of the oil-gas damper (17) and the rubber shock absorber (18) are fixedly connected via the connecting rod (19); the oil-gas damper (17) and the rubber shock absorber (18) are both arranged vertically; and the connecting rod (19) is also fixedly connected to the rotating shaft of the trolley wheel (5).

3. The vibration isolation system for high-speed quay crane vehicle according to claim 1 is characterized in that: The anti-skew wheel vibration-isolating device (9) comprises a connecting seat (16), an oil-gas damper (17) and a rubber shock absorber (18); the connecting seat (16) is fixedly connected to the quay crane trolley frame (1); one end of the oil-gas damper (17) and the rubber shock absorber (18) are hinged to the connecting seat (16); the other ends of the oil-gas damper (17) and the rubber shock absorber (18) are fixedly connected to the anti-skew wheel bracket (8); the oil-gas damper (17) and the rubber shock absorber (18) are both arranged horizontally, and the oil-gas damper (17) and the rubber shock absorber (18) are perpendicular to the extension direction of the quay crane beam.

4. The vibration isolation system for high-speed quay crane vehicle according to claim 1 is characterized in that: The traction wheel vibration isolation device (12) comprises a connecting seat (16), an oil-gas damper (17) and a rubber shock absorber (18); the connecting seat (16) is fixedly connected to the quay crane trolley frame (1); one end of the oil-gas damper (17) and the rubber shock absorber (18) are hinged to the connecting seat (16); the other ends of the oil-gas damper (17) and the rubber shock absorber (18) are fixedly connected to the traction wheel support (11); and the oil-gas damper (17) and the rubber shock absorber (18) are arranged parallel to the extension direction of the quay crane beam.

5. The vibration isolation system for high-speed quay crane vehicle according to claim 1 is characterized in that: The hoisting pulley block vibration isolation device (15) comprises a connecting seat (16), an oil-gas damper (17), a rubber shock absorber (18) and a connecting rod (19); the connecting seat (16) is fixedly connected to the quay crane trolley frame (1); one end of the oil-gas damper (17) and the rubber shock absorber (18) are hinged to the connecting seat (16); the other ends of the oil-gas damper (17) and the rubber shock absorber (18) are fixedly connected via the connecting rod (19); the oil-gas damper (17) and the rubber shock absorber (18) are both arranged vertically; and the connecting rod (19) is also fixedly connected to the rotating shaft of the hoisting pulley block (14).

6. The vibration isolation system for a high-speed quay crane vehicle according to any one of claims 2 to 5, characterized in that: The oil-gas damper (17) comprises a piston rod (20), a piston (21) and a cylinder body (22); one end of the piston rod (20) is hinged to a connecting seat (16), the other end of the piston rod (20) is connected to the piston (21), and the piston (21) is arranged in the cylinder body (22); the cylinder body (22) comprises an air filling chamber (23) and an oil filling chamber (24); the air filling chamber (23) is located on a side where the piston (21) is connected to the piston rod (20), and the oil filling chamber (24) is located on a side of the piston (21) away from the piston rod (20).

7. The vibration isolation system for a high-speed quay crane vehicle according to any one of claims 2 to 5, characterized in that: The rubber vibration damper (18) comprises a spring rod (25), a rubber spring (26) and a base (27); one end of the spring rod (25) is hinged to the connecting seat (16); the other end of the spring rod (25) is connected to the rubber spring (26); the rubber spring (26) is connected to the base (27); and the rubber spring (26) is arranged in the base (27).

8. The vibration isolation system for high-speed quay crane vehicle according to claim 1 is characterized in that: The number of the wheel vibration-isolating devices (6) is equal to the number of the trolley wheels (5); the number of the anti-skew wheel vibration-isolating devices (9) is equal to the number of the anti-skew wheels (7); and the number of the traction wheel vibration-isolating devices (12) is equal to the number of the traction wheels (10).

9. The vibration isolation system for high-speed quay crane vehicle according to claim 1, characterized in that: The number of the lifting pulley block vibration-isolating devices (15) is twice the number of the lifting pulley block (14).

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