CN211444757U - High-speed bank bridge trolley lifting pulley vibration-avoiding system - Google Patents
High-speed bank bridge trolley lifting pulley vibration-avoiding system Download PDFInfo
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- CN211444757U CN211444757U CN201921866391.XU CN201921866391U CN211444757U CN 211444757 U CN211444757 U CN 211444757U CN 201921866391 U CN201921866391 U CN 201921866391U CN 211444757 U CN211444757 U CN 211444757U
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Abstract
The utility model discloses a high-speed bank bridge dolly plays to rise pulley and keeps away system that shakes, bank bridge dolly frame with play to rise pulley components of a whole that can function independently setting, including a plurality of devices of keeping away shaking, keep away the device that shakes and include connecting seat, oil gas damping and connecting rod, on the bank bridge dolly frame was located to the connecting seat is fixed, the oil gas damping was vertical to be arranged in bank bridge dolly frame and to play to rise between the pulley, and oil gas damping's one end is articulated with the connecting seat, and oil gas damping's the other end is through the connecting rod with play to. The utility model discloses effectively controlled the vibration of bank bridge dolly and bank bridge structure, guaranteed the safety of bank bridge dolly high-speed operation, the play to rise speed and the bank bridge dolly functioning speed that make bank bridge dolly hoist can further improve, and the play to rise speed that bank bridge dolly hung and got the container can improve to 130m/min, and the bank bridge dolly can improve to 380m/min along the speed of bank bridge girder, has improved the handling efficiency of bank bridge.
Description
Technical Field
The utility model relates to a harbour and pier container handling equipment technical field, especially a high-speed bank bridge dolly rises to rise pulley and keeps away system that shakes.
Background
With the rapid development of world economy and the vigorous advance of China on economy internationalization, in recent years, the total amount of international freight in China is continuously increased, and ocean transportation is rapidly developed as the most main transportation mode of international freight. The port wharf is a transfer station for sea-land transportation, containers are loaded and unloaded on the port wharf, and the loading and unloading efficiency of the port wharf determines the operation efficiency of the port wharf and influences the efficiency of international freight to a certain extent. At present, the container ship is developed to be large-scale, and the ultra-large container ship with the box loading capacity reaching 24000TEU is put into use, which provides greater challenge for the loading and unloading efficiency of ports and docks.
The shore bridge is the most important container loading and unloading equipment for port and wharf, the shore bridge trolley lifting appliance moves in the vertical direction through the lifting steel wire rope and the lifting pulley to complete the lifting and placing of the container, and the transfer of the container is realized by utilizing the movement of the shore bridge trolley along the direction of the shore bridge girder, so that the lifting speed of the shore bridge trolley lifting appliance and the running speed of the shore bridge trolley directly influence the loading and unloading efficiency of the shore bridge. At present, the maximum lifting speed of a shore bridge trolley lifting appliance under a heavy load condition is 75m/min, the maximum running speed of a shore bridge trolley along the direction of a shore bridge girder is 240m/min, and the ultimate speed for ensuring the stable structure of a shore bridge is achieved.
The bank bridge trolley lifting appliance is connected with the bank bridge trolley through a lifting steel wire rope and a lifting pulley, the lifting steel wire rope is wound on the lifting pulley, and the lifting pulley in the traditional bank bridge trolley structure is fixedly connected with a bank bridge trolley frame. When the speed of hoisting the container by the bank bridge trolley lifting appliance is too high, the tension change of the hoisting steel wire rope is too large when the bank bridge trolley lifting appliance starts braking, so that the pressure of the bank bridge trolley on the bank bridge girder is changed, the vibration of the bank bridge trolley and the bank bridge trolley lifting appliance is caused, and even the bounce of the bank bridge trolley on the bank bridge girder seriously influences the operation safety and the structural stability of the bank bridge. Meanwhile, when the bank crane trolley runs at an excessively high speed along the bank crane girder, the bank crane trolley lifting appliance and the container can drag lifting pulleys and a bank crane trolley structure through lifting steel wire ropes due to inertia, so that the bank crane trolley is driven to vibrate or the container is caused to collide with the bank crane structure, and the bank crane trolley is also not beneficial to bank crane running safety. Therefore, the difficulty in further improving the lifting speed of the crane of the shore bridge trolley and the running speed of the crane of the shore bridge trolley along the girder of the shore bridge is very high, and a system capable of effectively controlling the tension change of the lifting steel wire rope needs to be developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-speed bank bridge dolly plays to rise pulley and keeps away system that shakes can weaken the bank bridge dolly high-speed operation play to rise wire rope's pulling force change and bank bridge dolly frame and play to rise the effort change between the pulley, weakens the vibration of bank bridge dolly and bank bridge structure, protects the structure of bank bridge, provides the condition for the functioning speed that rises speed and the bank bridge dolly that improves bank bridge dolly hoist.
In order to solve the technical problem, the utility model discloses a following technical scheme: a vibration-preventing system for lifting pulleys of a high-speed shore bridge trolley is used for weakening the tension change of lifting steel wire ropes when the shore bridge trolley runs at a high speed and weakening the acting force change between a frame of the shore bridge trolley and the lifting pulleys. At present, a crane trolley frame is fixedly connected with a lifting pulley, and a lifting steel wire rope and the lifting pulley are matched together to realize the movement of a crane trolley lifting appliance in the vertical direction. In the system that shakes is kept away to high-speed bank bridge dolly play to rise pulley bank bridge dolly frame sets up with playing to rise the pulley components of a whole that can function independently, increases a plurality of devices of keeping away to shake between bank bridge dolly frame and the play pulley, keep away the device that shakes and include connecting seat, oil gas damping and connecting rod, the connecting seat is fixed to be located on the bank bridge dolly frame, oil gas damping is vertical to be arranged in bank bridge dolly frame and to play to rise between the pulley, and oil gas damping's one end is articulated with the connecting seat, and oil gas damping's the other end is through the axis of rotation fixed connection.
When the pulling force of the lifting steel wire rope changes, the acting force is buffered by the vibration preventing device, the acting force between the lifting pulley and the shore bridge trolley frame is slowly transmitted and changed, the rapid and frequent change of the pressure and the supporting force between the shore bridge trolley frame and the shore bridge girder is avoided, the operation speed of the shore bridge trolley is more stable, and conditions are provided for improving the lifting speed of the lifting appliance of the shore bridge trolley and the operation speed of the shore bridge trolley.
The oil-gas damping in the high-speed shore bridge trolley lifting pulley vibration-avoiding system comprises a piston rod, a piston and a cylinder body, wherein one end of the piston rod is hinged to the connecting seat, the other end of the piston rod is connected with the piston, and the piston is arranged in the cylinder body. The cylinder body is fixedly connected with a rotating shaft of the lifting pulley through a connecting rod, the cylinder body comprises an inflation cavity and an oil filling cavity, the inflation cavity is located on one side of the piston connecting piston rod, and the oil filling cavity is located on the other side of the piston. When the lifting pulley and the shore bridge trolley frame move relatively, the oil-gas damping is stretched or extruded, the pressure in the inflation cavity and the oil-filled cavity changes, the oil-gas damping generates acting force resisting the relative movement, so that the lifting pulley and the shore bridge trolley frame tend to be stable, the vibration amplitude is reduced, and further, the movement of the shore bridge trolley lifting appliance and the shore bridge trolley below the lifting pulley is stably carried out.
The utility model discloses in keep away device that shakes still include rubber shock absorber, rubber shock absorber and oil gas damping parallel arrangement, rubber shock absorber's one end is articulated with the connecting seat, rubber shock absorber's the other end through the axis of rotation fixed connection of connecting rod with the lift pulley. The rubber shock absorber has the effect similar to oil-gas damping, can limit the relative motion of a lifting pulley and a shore bridge trolley frame, but the oil-gas damping can generate obvious heating after being compressed or stretched in a short time and at a high frequency, so that the working performance of the oil-gas damping is reduced. The rubber shock absorber has small heat productivity in the using process and can be matched with oil gas damping for use, so that the stability of the shock absorbing device can be improved.
In the lifting pulley vibration-avoiding system of the high-speed shore bridge trolley, the rubber vibration absorber comprises 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 with the rubber spring, the rubber spring is connected with the base, the rubber spring is arranged in the base, and the base is fixedly connected with a rotating shaft of the lifting pulley through a connecting rod. When the lifting pulley and the shore bridge trolley frame generate relative displacement, the rubber spring is compressed or stretched to generate opposite acting force, so that the vibration amplitude of the shore bridge trolley is reduced, and the movement tends to be stable.
The utility model provides a set up oil gas damping and rubber shock absorber in the device of keeping away shakes simultaneously, for guaranteeing that oil gas damping and rubber shock absorber can the synchronous motion, prevent to rise the pulley slope, the stress in oil gas damping and the rubber shock absorber changes repeatedly, need utilize the connecting rod to link together oil gas damping and rubber shock absorber. The connecting rod is of a T-shaped structure, two transverse ends of the T-shaped structure are fixedly connected with the oil-gas damping and the rubber shock absorber respectively, and one vertical end of the T-shaped structure is fixedly connected with a rotating shaft of the lifting pulley.
For guaranteeing to rise the pulley and the bank bridge dolly frame be connected stably, need all set up in rising the pulley both sides and keep away the device that shakes, the utility model discloses in keep away the quantity of shaking the device for the twice that rises pulley quantity, every group plays to rise the axis of rotation both sides of pulley and respectively is equipped with a set of device that keeps away and shakes. In the conventional design, four groups of lifting pulleys need to be arranged in a shore bridge trolley frame to ensure the stable operation of a shore bridge trolley lifting appliance, and under the condition, eight groups of vibration prevention devices are needed to ensure the stable structure of the four groups of lifting pulleys.
Compared with the prior art, the utility model discloses an useful part lies in: the utility model provides a high-speed bank bridge dolly plays to rise pulley and keeps away system of shaking is provided, the pulling force change that rises wire rope and the effort change between bank bridge dolly frame and the play pulley when weakening bank bridge dolly high-speed motion, effectively control the vibration of bank bridge dolly and bank bridge structure, avoided bank bridge dolly and bank bridge dolly hoist and bank bridge structure to take place the collision spring, the safety of bank bridge dolly high-speed operation has been guaranteed, make the lifting speed and the bank bridge dolly operating speed of bank bridge dolly hoist can further improve, the lifting speed that bank bridge dolly hung and got the container can be improved to 130m/min, the speed that bank bridge dolly is along the bank bridge girder can be improved to 380m/min, the handling efficiency of bank bridge has been improved. Meanwhile, the oil-gas damping and the rubber shock absorber are matched with each other, so that the stable operation of the system is ensured.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a left side view of the present invention;
FIG. 4 is a schematic structural view of the oil-gas damper of the present invention;
FIG. 5 is a schematic structural diagram of a rubber damper according to the present invention;
FIG. 6 is a top view of the middle quay crane trolley frame of the utility model;
fig. 7 is a front view of the middle quay crane trolley frame of the utility model.
The meaning of the reference numerals: 1-lifting steel wire rope, 2-shore bridge trolley frame, 3-lifting pulley, 4-connecting seat, 5-oil gas damping, 6-connecting rod, 7-piston rod, 8-piston, 9-cylinder, 10-inflation cavity, 11-oil-filling cavity, 12-rubber vibration absorber, 13-spring rod, 14-rubber spring and 15-base.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
Embodiment 1 of the utility model: a vibration prevention system for a lifting pulley of a high-speed bank bridge trolley is used for weakening the tension change of a lifting steel wire rope 1 during high-speed operation of the bank bridge trolley, weakening the acting force change between a bank bridge trolley frame 2 and the lifting pulley 3, preventing the vibration of the bank bridge trolley and a bank bridge structure caused by the frequency division change of the acting force between the bank bridge trolley frame 2 and the lifting pulley 3, and improving the stability during high-speed operation of the bank bridge trolley. As shown in fig. 1, 2 or 3, the shore bridge trolley frame 2 and the lifting pulley 3 in this embodiment are separately arranged, and are connected and fixed by the vibration-preventing device arranged between the shore bridge trolley frame 2 and the lifting pulley 3, so that the rigid connection between the shore bridge trolley frame 2 and the lifting pulley 3 is changed into elastic connection. As shown in fig. 6, be provided with four groups in the bank bridge trolley frame 2 of this embodiment and play to rise pulley 3, for guaranteeing that four groups play to rise pulley 3 and connect stably, including eight groups in this embodiment and keep away the device that shakes, keep away the device that shakes and include connecting seat 4, oil gas damping 5 and connecting rod 6, connecting seat 4 is fixed to be located on bank bridge trolley frame 2, oil gas damping 5 is vertical to be arranged between bank bridge trolley frame 2 and the play to rise pulley 3, and oil gas damping 5's one end is articulated with connecting seat 4, and oil gas damping 5's the other end is through connecting rod 6 and the axis of rotation fixed connection who plays to rise pulley.
As shown in fig. 7, when the lifting speed of the bank bridge trolley lifting appliance is too fast or the running speed of the bank bridge trolley is too fast, the bank bridge trolley lifting appliance can generate pulling force on the lifting pulley 3 through the lifting steel wire rope 1, the vibration preventing device between the lifting pulley 3 and the bank bridge trolley frame 2 can play a role in buffering, the acting force between the lifting pulley 3 and the bank bridge trolley frame 2 is slowly changed, the frequent change of the pulling force of the lifting steel wire rope 1 is prevented, the vibration or bounce of the bank bridge trolley is caused, the running safety of the bank bridge trolley is threatened, and meanwhile, conditions are provided for improving the lifting speed of the bank bridge trolley lifting appliance and the running speed of the bank bridge trolley.
As shown in fig. 4, the oil-gas damper 5 in this embodiment includes a piston rod 7, a piston 8 and a cylinder 9, wherein one end of the piston rod 7 is hinged to the connecting seat 3, the other end of the piston rod 7 is connected to the piston 8, and the piston 8 is disposed in the cylinder 9; the cylinder body 9 is fixedly connected with a rotating shaft of the lifting pulley 3 through the connecting rod 6, the cylinder body 9 comprises an inflation cavity 10 and an oil filling cavity 11, the inflation cavity 10 is located on one side of the piston 8, which is connected with the piston rod 7, and the oil filling cavity 11 is located on the other side of the piston 8. When the lifting pulley 3 and the shore bridge trolley frame 2 move relatively, the piston rod 7 drives the piston 8 to move, the air inflation cavity 10 or the oil filling cavity 11 is compressed, the pressure in the air inflation cavity 10 and the oil filling cavity 11 changes, force resisting the movement of the piston 8 is generated and transmitted to the lifting pulley 3, the movement of the lifting pulley 3 is gradually stabilized, and the vibration amplitude of the shore bridge trolley is gradually reduced.
As shown in fig. 7, when the lifting speed of the bank bridge trolley lifting appliance is too fast or the running speed of the bank bridge trolley is too fast, the bank bridge trolley lifting appliance can generate pulling force on the lifting pulley 3 through the lifting steel wire rope 1, the vibration preventing device between the lifting pulley 3 and the bank bridge trolley frame 2 can play a role in buffering, the acting force between the lifting pulley 3 and the bank bridge trolley frame 2 is slowly changed, the frequent change of the pulling force of the lifting steel wire rope 1 is prevented, the vibration or bounce of the bank bridge trolley is caused, the running safety of the bank bridge trolley is threatened, and meanwhile, conditions are provided for improving the lifting speed of the bank bridge trolley lifting appliance and the running speed of the bank bridge trolley.
As shown in fig. 4, the oil-gas damper 5 in this embodiment includes a piston rod 7, a piston 8 and a cylinder 9, wherein one end of the piston rod 7 is hinged to the connecting seat 3, the other end of the piston rod 7 is connected to the piston 8, and the piston 8 is disposed in the cylinder 9; the cylinder body 9 is fixedly connected with a rotating shaft of the lifting pulley 3 through the connecting rod 6, the cylinder body 9 comprises an inflation cavity 10 and an oil filling cavity 11, the inflation cavity 10 is located on one side of the piston 8, which is connected with the piston rod 7, and the oil filling cavity 11 is located on the other side of the piston 8. When the lifting pulley 3 and the shore bridge trolley frame 2 move relatively, the piston rod 7 drives the piston 8 to move, the air inflation cavity 10 or the oil filling cavity 11 is compressed, the pressure in the air inflation cavity 10 and the oil filling cavity 11 changes, force resisting the movement of the piston 8 is generated and transmitted to the lifting pulley 3, the movement of the lifting pulley 3 is gradually stabilized, and the vibration amplitude of the shore bridge trolley is gradually reduced.
As shown in fig. 5, the rubber damper 12 in this embodiment includes a spring rod 13, a rubber spring 14 and a base 15, one end of the spring rod 13 is hinged to the connecting seat 3, the other end of the spring rod 13 is connected to the rubber spring 14, the rubber spring 14 is connected to the base 15, the rubber spring 14 is disposed in the base 15, and the base 15 is fixedly connected to the rotating shaft of the lifting pulley 3 through the connecting rod 6. The rubber damper 12 performs a damping action by compressing or extending the rubber spring 14.
The oil-gas damper 5 and the rubber shock absorber 12 can play a role in buffering and limit the relative movement of the lifting pulley and the shore bridge trolley frame, but the oil-gas damper 5 and the rubber shock absorber 12 have certain defects. The oil gas damping 5 can generate obvious heating after being compressed or stretched in a short time and at a high frequency, so that the working performance of the oil gas damping 5 is reduced, and the stability is ensured. The rubber damper 12 achieves a damping action by means of the rubber spring 14, and the deformation amount of the rubber spring 14 as a coil spring changes after a long time use, and the rigidity and stability are lowered. Therefore, the oil-gas damper 5 and the rubber shock absorber 12 are used in cooperation in the embodiment, so that the stability of the shock absorbing device can be improved.
As shown in fig. 7, when the lifting speed of the bank bridge trolley lifting appliance is too fast or the running speed of the bank bridge trolley is too fast, the bank bridge trolley lifting appliance can generate pulling force on the lifting pulley 3 through the lifting steel wire rope 1, the vibration preventing device between the lifting pulley 3 and the bank bridge trolley frame 2 can play a role in buffering, the acting force between the lifting pulley 3 and the bank bridge trolley frame 2 is slowly changed, the frequent change of the pulling force of the lifting steel wire rope 1 is prevented, the vibration or bounce of the bank bridge trolley is caused, the running safety of the bank bridge trolley is threatened, and meanwhile, conditions are provided for improving the lifting speed of the bank bridge trolley lifting appliance and the running speed of the bank bridge trolley.
As shown in fig. 4, the oil-gas damper 5 in this embodiment includes a piston rod 7, a piston 8 and a cylinder 9, wherein one end of the piston rod 7 is hinged to the connecting seat 3, the other end of the piston rod 7 is connected to the piston 8, and the piston 8 is disposed in the cylinder 9; the cylinder body 9 is fixedly connected with a rotating shaft of the lifting pulley 3 through the connecting rod 6, the cylinder body 9 comprises an inflation cavity 10 and an oil filling cavity 11, the inflation cavity 10 is located on one side of the piston 8, which is connected with the piston rod 7, and the oil filling cavity 11 is located on the other side of the piston 8. When the lifting pulley 3 and the shore bridge trolley frame 2 move relatively, the piston rod 7 drives the piston 8 to move, the air inflation cavity 10 or the oil filling cavity 11 is compressed, the pressure in the air inflation cavity 10 and the oil filling cavity 11 changes, force resisting the movement of the piston 8 is generated and transmitted to the lifting pulley 3, the movement of the lifting pulley 3 is gradually stabilized, and the vibration amplitude of the shore bridge trolley is gradually reduced.
As shown in fig. 5, the rubber damper 12 in this embodiment includes a spring rod 13, a rubber spring 14 and a base 15, one end of the spring rod 13 is hinged to the connecting seat 3, the other end of the spring rod 13 is connected to the rubber spring 14, the rubber spring 14 is connected to the base 15, the rubber spring 14 is disposed in the base 15, and the base 15 is fixedly connected to the rotating shaft of the lifting pulley 3 through the connecting rod 6. The rubber damper 12 performs a damping action by compressing or extending the rubber spring 14.
The oil-gas damper 5 and the rubber shock absorber 12 can play a role in buffering and limit the relative movement of the lifting pulley and the shore bridge trolley frame, but the oil-gas damper 5 and the rubber shock absorber 12 have certain defects. The oil gas damping 5 can generate obvious heating after being compressed or stretched in a short time and at a high frequency, so that the working performance of the oil gas damping 5 is reduced, and the stability is ensured. The rubber damper 12 achieves a damping action by means of the rubber spring 14, and the deformation amount of the rubber spring 14 as a coil spring changes after a long time use, and the rigidity and stability are lowered. Therefore, the oil-gas damper 5 and the rubber shock absorber 12 are used in cooperation in the embodiment, so that the stability of the shock absorbing device can be improved.
As shown in fig. 2 or fig. 3, the connecting rod 6 in this embodiment is a T-shaped structure, two horizontal ends of the T-shaped structure are respectively and fixedly connected with the oil-gas damper 5 and the rubber shock absorber 12, and one vertical end of the T-shaped structure is fixedly connected with the rotating shaft of the lifting pulley 3. The connecting rod 6 of T-shaped structure links together oil gas damping 5 and rubber shock absorber 12, prevents that oil gas damping 5 and rubber shock absorber 12 motion are asynchronous, causes the slope of hoisting pulley 3, and bank bridge dolly hoist moves unstably.
The utility model discloses a theory of operation: when the shore bridge trolley lifting appliance is started or braked or stably runs, the shore bridge trolley lifting appliance can vibrate due to the elasticity of the lifting steel wire rope 1, the pulling force of the lifting steel wire rope 1 can also change, the pressure of the shore bridge trolley on the shore bridge girder is caused to change, the shore bridge trolley and the shore bridge girder vibrate, and even the shore bridge trolley bounces, so that the normal running of the shore bridge is seriously influenced. When bank bridge dolly moves along the bank bridge girder, because the inertia of bank bridge dolly hoist and container, bank bridge dolly hoist can be through the pulling force that plays to rise wire rope 1 to 3 production incline direction of hoisting pulley, and the pulling force direction changes to vertical direction gradually, and the change of this kind of pulling force direction also can lead to the vibration of bank bridge dolly, influences bank bridge dolly operation safety. The faster the lifting speed of the crane trolley lifting appliance and the running speed of the crane trolley, the greater the vibration amplitude of the crane trolley, which is a key reason for limiting the speed increase of the crane trolley.
The utility model discloses to rise pulley 3 and bank bridge dolly frame 2 components of a whole that can function independently and arrange, the centre is connected through keeping away the device that shakes, cushions the pulling force change that rises wire rope 1, reduces to rise pulley 3 for bank bridge dolly frame 2's motion range, can the vibration of effectual restriction bank bridge dolly, makes bank bridge dolly motion more steady, provides the condition for the functioning speed that rises speed and the bank bridge dolly that improves bank bridge dolly hoist.
Claims (6)
1. The utility model provides a high-speed bank bridge dolly plays to rise pulley and keeps away system that shakes for weaken the pulling force change that bank bridge dolly rises wire rope (1) when high-speed operation, weaken the effort change between bank bridge dolly frame (2) and the lifting pulley (3), its characterized in that: bank bridge dolly frame (2) and play to rise pulley (3) components of a whole that can function independently setting, high-speed bank bridge dolly play to rise pulley and keep away the system of shaking and include a plurality of devices of shaking of keeping away, keep away the device of shaking and include connecting seat (4), oil gas damping (5) and connecting rod (6), connecting seat (4) are fixed to be located on bank bridge dolly frame (2), oil gas damping (5) vertical arrangement is between bank bridge dolly frame (2) and play to rise pulley (3), and the one end and the connecting seat (4) of oil gas damping (5) are articulated, and the other end of oil gas damping (5) is through connecting rod (6) and the axis of rotation fixed connection who plays to rise pulley (3).
2. The high-speed shore bridge trolley hoisting pulley vibration-avoiding system as claimed in claim 1, wherein: the oil-gas damper (5) comprises a piston rod (7), a piston (8) and a cylinder body (9), one end of the piston rod (7) is hinged to the connecting seat (4), the other end of the piston rod (7) is connected with the piston (8), and the piston (8) is arranged in the cylinder body (9); cylinder body (9) are through connecting rod (6) and the axis of rotation fixed connection who rises pulley (3), and cylinder body (9) are including aerifing chamber (10) and oil charge chamber (11), aerify chamber (10) and be located one side that piston (8) are connected piston rod (7), oil charge chamber (11) are located the opposite side of piston (8).
3. The high-speed shore bridge trolley hoisting pulley vibration-avoiding system as claimed in claim 1, wherein: the vibration avoiding device further comprises a rubber vibration absorber (12), the rubber vibration absorber (12) and the oil-gas damper (5) are arranged in parallel, one end of the rubber vibration absorber (12) is hinged to the connecting seat (4), and the other end of the rubber vibration absorber (12) is fixedly connected with a rotating shaft of the lifting pulley (3) through a connecting rod (6).
4. The high-speed shore bridge trolley hoisting pulley vibration-avoiding system as claimed in claim 3, wherein: the rubber shock absorber (12) comprises a spring rod (13), a rubber spring (14) and a base (15), one end of the spring rod (13) is hinged to the connecting seat (4), the other end of the spring rod (13) is connected with the rubber spring (14), the rubber spring (14) is connected with the base (15), the rubber spring (14) is arranged in the base (15), and the base (15) is fixedly connected with a rotating shaft of the lifting pulley (3) through a connecting rod (6).
5. The high-speed shore bridge trolley hoisting pulley vibration-avoiding system as claimed in claim 3, wherein: the connecting rod (6) is of a T-shaped structure, two transverse ends of the T-shaped structure are fixedly connected with the oil-gas damper (5) and the rubber shock absorber (12) respectively, and one vertical end of the T-shaped structure is fixedly connected with a rotating shaft of the lifting pulley (3).
6. The high-speed shore bridge trolley hoisting pulley vibration-avoiding system as claimed in claim 1, wherein: the number of the vibration-avoiding devices is twice that of the lifting pulleys (3), and two sides of the rotating shaft of each group of lifting pulleys (3) are respectively provided with one group of vibration-avoiding devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866391.XU CN211444757U (en) | 2019-10-31 | 2019-10-31 | High-speed bank bridge trolley lifting pulley vibration-avoiding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866391.XU CN211444757U (en) | 2019-10-31 | 2019-10-31 | High-speed bank bridge trolley lifting pulley vibration-avoiding system |
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| CN211444757U true CN211444757U (en) | 2020-09-08 |
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| CN201921866391.XU Active CN211444757U (en) | 2019-10-31 | 2019-10-31 | High-speed bank bridge trolley lifting pulley vibration-avoiding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744707A (en) * | 2019-10-31 | 2021-05-04 | 华电重工股份有限公司 | High-speed bank bridge trolley lifting pulley vibration-avoiding system |
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2019
- 2019-10-31 CN CN201921866391.XU patent/CN211444757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744707A (en) * | 2019-10-31 | 2021-05-04 | 华电重工股份有限公司 | High-speed bank bridge trolley lifting pulley vibration-avoiding system |
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