EP3985172B1

EP3985172B1 - Follow-up-type self-locking rail clamping device

Info

Publication number: EP3985172B1
Application number: EP19932745.3A
Authority: EP
Inventors: Jianming Yuan; Lei Wang; Baiwen LIN; Longfei ZHENG; Yongquan HAO; Ruxin ZHAO; Yong Hu; Hao Wei; Zhong Yang
Original assignee: Wuhan K Crane Ocean Lifting Technology Co Ltd
Current assignee: Wuhan K Crane Ocean Lifting Technology Co Ltd
Priority date: 2019-06-13
Filing date: 2019-07-09
Publication date: 2023-09-06
Anticipated expiration: 2039-07-09
Also published as: CN110172877A; EP3985172A4; EP3985172A1; WO2020248314A1

Description

Technical Field

The disclosure relates to servo self-locking track clamping device.

Background of the Invention

Large-scale orbital port machinery operating outdoors are often attacked by typhoons, hurricanes, and tornadoes, and bear great wind loads. Although the working conditions under severe wind loads are considered in the process of designing such equipment, the phenomenon of equipment being blown down by high winds still occurs. The main reason is that the calculation of the anti-overturning stability of the equipment in the design is based on the static state of the equipment. If under extreme wind load conditions, the equipment has insufficient anti-skid ability, it will accelerate along the track after being driven by strong wind, and will collide with nearby equipment or collide with the limit baffle set at the end of the track. At this time, the overturning moment generated by the inertial force is much greater than the anti-overturning moment generated by the equipment's own weight, which causes the equipment to overturn. In order to prevent such accidents, large track port machinery must be equipped with reliable wind-proof and anti-skid devices. At present, there are three main types of wind-proof and anti-skid devices: wind-proof anchoring device, track pressing or track jacking device, and track clamping device.
The windproof anchoring device uses an anchoring device to fix the equipment at a designated position (anchor seat), and restricts the movement of the equipment through the anchoring device. The advantage of the windproof anchoring device is simple structure, safe and reliable, but it is inconvenient to operate. When strong wind comes, the equipment must be moved to the anchoring seat before the anchoring action can be carried out. Real-time response cannot be achieved in the case of sudden gusts or tornadoes. Moreover, it is necessary to set up several anchor seats along the track, which requires a large amount of engineering and high cost.
The working principle of track pressing or track jacking device is to use auxiliary devices to press part of the equipment's own weight to the top of the track, and to resist wind by increasing the friction between the equipment and the track surface. This kind of device has simple structure and convenient operation. However, since only part of the equipment's own weight can be used to increase the friction, the wind resistance and slip resistance are limited. When subjected to extreme wind loads, the wind force is generally much greater than the maximum friction that the device can generate, so the safety of this type of device is not high.
The working principle of track clamping device is to use the friction force generated by the clamping device to actively clamp the track to resist wind. This type of device has its own power device to provide clamping force, which can provide greater clamping force. The larger the clamping force provided by the power device of the track clamp, the larger its volume will also increase. Therefore, subject to the limitation of the arrangement space, the active clamping force generated by the track clamp is limited. In addition, the track clamp is usually fixedly installed at the front end of a large track-type port machinery traveling trolley, which has poor track adaptability. When encountering the unevenness of the track in the walking section and the deviation of the wheels of the cart due to the settlement of the port wharf, the clamp of the track clamping device may not be able to clamp the track.
At present, the above-mentioned three types of wind-proof and anti-skid devices are widely used in various track-type port machinery, but due to their obvious shortcomings, when encountering extreme wind loads, accidents often occur in which the equipment are blown by strong winds and falls into the sea due to insufficient wind and skid resistance or malfunctions. It seriously affected the normal production operations in the port area and caused the port enterprises to bear huge property losses. Therefore, it is urgent to develop a safe and reliable wind-proof and anti-skid device. CN 106 395 624 A discloses the preamble of claim 1.

Summary of the Invention

This disclosure provides a servo self-locking track clamping device to provide a safe and reliable windproof and anti-skid device.
The servo self-locking track clamping device comprises a pressure plate assembly and a clamping assembly, wherein:

the pressure plate assembly includes pressure plate holders fixedly connected with lower beam of port machinery; the number of the pressure plate holders is two; the two pressure plate holders are arranged opposite to each other along extending direction of a track; the clamping assembly is located between the two pressure plate holders; the pressure plate holders are provided with a pressure plate for pressing the clamping assembly;
the clamping assembly includes a thrust bracket, a clamping mechanism, and an opening and closing mechanism connected in sequence; the thrust bracket includes a frame, a roller, pressure bearing plates and a clamping plate; the roller is arranged at the lower part of the frame and connected with top surface of the track; the number of the pressure bearing plates is two; the two pressure bearing plates are respectively provided at two ends of the frame, and are used to bear the pressing pressure applied by the pressure plate;
the clamp mechanism includes a bracket and clamping arms; the bracket is horizontally slidably installed on the frame; the clamping arms are rotatably installed on the bracket; the number of the clamping arms is two; the two clamping arms are symmetrically arranged on both sides of the track;
the opening and closing mechanism includes a hydraulic cylinder; the two ends of the hydraulic cylinder are connected to the upper ends of the two clamping arms respectively; the length of the hydraulic cylinder is stretchable to make the lower ends of the two retractable arms rotate close to and fit with the two sides of the track, or rotate far away and separate from the two sides of the track;
the clamping plate is arranged on the upper part of the frame, and is sandwiched between the two clamping arms; the two sides connected to the clamping plate and the clamping arms are both curved surfaces that are concave in the horizontal direction.

When the servo self-locking track clamping device provided by this disclosure is in use, the pressure plate assembly is fixedly installed on the lower beam of the port machinery. When the port machinery slides along the track, the pressure plate assembly will slide with the port machinery. The clamping assembly is slidably installed on the track through the roller at the bottom.
The thrust bracket is used as a structural support for the clamping assembly to install the clamp mechanism, and can bear the thrust of the clamping assembly generated by the sliding of the pressure plate assembly along with the port machinery. This driving force is transmitted to the pressure bearing plates of the clamping assembly through the pressure plate of the pressure plate assembly. The clamping plate of the clamping assembly can convert the component force of the pushing force perpendicular to the track into the clamping force of the two clamping arms on the side of the track, and the clamping force will increase with the increase of the pushing force.
The clamp mechanism is clamped on both sides of the track by the relative rotation of two clamping arms. The opening and closing mechanism can adjust the opening and closing of the two clamping arms through the expansion of the hydraulic cylinder. There is no need to presuppose the anchor seat, the servo self-locking track clamping device moves synchronously with the port machinery on the track in the self-locking closed state, which can switch the working state in real time through the open and closing mechanism. It solves the shortcomings of the existing wind-proof anchoring device, which include the inability to respond in real time, the large amount of engineering, and the high cost.
The existing track clamp uses clamp devices to actively clamp the track to generate friction to resist wind. However, due to the limitation of the arrangement space, the active clamping force generated by the track clamps is limited. This disclosure uses wind to generate the clamping force, hence the problem of limited active clamping force generated by the track clamp is overcome. Moreover, the frictional resistance that hinders the port machinery is proportional to the wind force, which overcomes the problem of limited wind resistance and slip resistance of the existing track pressing or track jacking device that can only use part of the dead weight of the equipment to increase the friction force.

Brief description of the Drawings

Accompanying drawings are for providing further understanding of embodiments of the disclosure. The drawings form a part of the disclosure and are for illustrating the principle of the embodiments of the disclosure along with the literal description. Apparently, the drawings in the description below are merely some embodiments of the disclosure, a person skilled in the art can obtain other drawings according to these drawings without creative efforts. In the figures:

FIG. 1 is a three-dimensional structural diagram of the servo self-locking track clamping device provided by an embodiment of this disclosure;
FIG. 2 is a schematic structural diagram of the servo self-locking track clamping device provided by an embodiment of this disclosure;
FIG. 3 is a side view of the servo self-locking track clamping device provided by this disclosure embodiment;
FIG. 4 is a schematic structural diagram of the pressure plate assembly provided by an embodiment of this disclosure;
FIG. 5 is a cross-sectional view of the pressure plate assembly A-A provided by this disclosure embodiment;
FIG. 6 is a schematic structural diagram of the thrust bracket provided by an embodiment of this disclosure;
FIG. 7 is a top view of the thrust bracket provided by this disclosure embodiment;
FIG. 8 is a schematic structural diagram of the clamp mechanism bracket provided by this disclosure embodiment;
FIG. 9 is a top view of the clamp mechanism bracket provided by this disclosure embodiment;
FIG. 10 is a schematic structural diagram of the clamping arms provided by an embodiment of this disclosure;
FIG. 11 is a top view of the clamping arms provided by this disclosure embodiment;
FIG. 12 is a schematic structural diagram of the opening and closing mechanism provided by this disclosure embodiment;
FIG. 13 is a schematic structural diagram of the anti-tilt component provided by an embodiment of this disclosure;
FIG. 14 is a cross-sectional view of the anti-tilt component provided by this disclosure in the B-B section;

Detailed Description of Embodiments

As shown in FIG. 1 to FIG. 14, this disclosure provides a servo self-locking track clamping device, including a pressure plate assembly and a clamping assembly. The pressure plate assembly includes pressure plate holders 1 fixedly connected with lower beam of port machinery; the number of the pressure plate holders 1 is two; the two pressure plate holders 1 are arranged opposite to each other along extending direction of a track; the clamping assembly is located between the two pressure plate holders 1; the pressure plate holders 1 are provided with a pressure plate 3 for pressing the clamping assembly. The clamping assembly includes a thrust bracket, a clamping mechanism, and an opening and closing mechanism connected in sequence; the thrust bracket includes a frame, a roller 5, pressure bearing plates 4 and a clamping plate 6; the roller 5 is arranged at the lower part of the frame and connected with top surface of the track; the number of the pressure bearing plates 4 is two; the two pressure bearing plates 4 are respectively provided at two ends of the frame, and are used to bear the pressing pressure applied by the pressure plate. The clamp mechanism includes a bracket 8 and clamping arms 9; the bracket 8 is horizontally slidably installed on the frame; the clamping arms 9 are rotatably installed on the bracket 8; the number of the clamping arms 9 is two; the two clamping arms 9 are symmetrically arranged on both sides of the track. The opening and closing mechanism includes a hydraulic cylinder 12; the two ends of the hydraulic cylinder 12 are connected to the upper ends of the two clamping arms 9 respectively; the length of the hydraulic cylinder 12 is stretchable to make the lower ends of the two retractable arms rotate close to and fit with the two sides of the track, or rotate far away and separate from the two sides of the track. The clamping plate 6 is arranged on the upper part of the frame, and is sandwiched between the two clamping arms 9; the two sides connected to the clamping plate 6 and the clamping arms 9 are both curved surfaces that are concave in the horizontal direction.
When the servo self-locking track clamping device provided by this disclosure is in use, the pressure plate 3 assembly is fixedly installed on the lower beam of the port machinery. When the port machinery slides along the track, the pressure plate assembly will slide with the port machinery. The clamping assembly is slidably installed on the track through the roller 5 at the bottom.
The thrust bracket is used as a structural support for the clamping assembly to install the clamp mechanism, and can bear the thrust of the clamping assembly generated by the sliding of the pressure plate 3 assembly along with the port machinery. This driving force is transmitted to the pressure bearing plates 4 of the clamping assembly through the pressure plate 3 of the pressure plate 3 assembly. The clamping plate 6 of the clamping assembly can convert the component force of the pushing force perpendicular to the track into the clamping force of the two clamping arms 9 on the side of the track, and the clamping force will increase with the increase of the pushing force.
The bracket 8, which is slidably mounted on the frame of the thrust bracket, provides rotational support for the two clamping arms 9, so that the two clamping arms 9 form a clamp-shaped clamping structure. The Clamp mechanism forms a clamp-shaped clamping on both sides of the track through the relative rotation of the two clamping arms 9. The opening and closing mechanism can adjust the opening and closing of the two clamping arms 9 through the expansion and contraction of the hydraulic cylinder 12.
Specifically, when the port machinery is in a working state of normal sliding movement on the track, the servo self-locking track clamping device provided in this disclosure embodiment should be in a self-locking closed servo state. At this time, the hydraulic cylinder 12 can be in a contracted state, and the lower ends of the two clamping arms 9 are away from each other and separated from the two sides of the track. At this time, the clamping assembly has no clamping force on the side of the track. The clamping assembly will slide on the track with the port machinery under the push of the pressure plate assembly. When the port machinery is in a stopped state, the hydraulic cylinder 12 can be extended to make the lower ends of the two clamping arms 9 close to and close to the two sides of the track to form a pre-clamping. At this time, the servo self-locking track clamping device provided by this disclosure embodiment is in a self-locking and open wind-proof and anti-skid state.
When a strong wind strikes, if the port machinery slips along the track direction, the pressure plate assembly will push the pressure bearing plates 4 of the clamping assembly through the pressure plate 3 and cause the thrust bracket to slip. The two sides connected to the clamping plate 6 and the clamping arms 9 are both curved surfaces that are concave in the horizontal direction. When the clamping plate 6 slips, the two sliding arms that clamp the clamping plate 6 will be spread apart along the arcs on both sides of the clamping plate 6, and the distance will increase, so that the lower ends of the two clamping arms 9 will have a greater impact on the two sides of the track. The clamping force prevents the clamping arms 9 from sliding with the thrust bracket along the track.
At the same time, the clamping arms 9 has a reaction force against the clamping plate 6 to hinder its sliding, hindering the sliding of the thrust bracket and transmitting it to the pressure plate 3 through the pressure bearing plates 4, forming an obstacle to the sliding of the port machinery. The greater the wind force that the port machinery bears to cause it to slip, the greater the component force along the track of the pushing force exerted by the pressure plate 3 on the pressure bearing plates 4. The two clamping arms 9 are formed in a pair of clamp-shaped clamping structures. The greater the clamping force on both sides of the track, the greater the frictional resistance of the device along the track direction generated by this clamping force that prevents the device from continuing to slip, even if the port machinery slips more wind, this disclosure embodiment servo The greater the frictional resistance generated by the self-locking track clamping device that hinders the sliding of the port machinery, and this frictional resistance is proportional to the wind.
Therefore, the servo self-locking track clamping device provided by the embodiment of this disclosure does not require a preset anchor seat, and it moves synchronously with the port machinery on the track in the self-locking closed state, which can switch the working state in real time through the open and closing mechanism. It solves the shortcomings of the existing wind-proof anchoring device, which include the inability to respond in real time, the large amount of engineering, and the high cost. The existing track clamp uses clamp devices to actively clamp the track to generate friction to resist wind. However, due to the limitation of the arrangement space, the active clamping force generated by the track clamps is limited. This disclosure uses wind to generate the clamping force, hence the problem of limited active clamping force generated by the track clamp is overcome. Moreover, the frictional resistance that hinders the port machinery is proportional to the wind force, which overcomes the problem of limited wind resistance and slip resistance of the existing track pressing or track jacking device that can only use part of the dead weight of the equipment to increase the friction force. Therefore, this device is safe and reliable.
The pressure plate assembly also includes trapezoidal support 2; the pressure plate holder 1 is fixedly connected to the lower beam of the port machinery through the trapezoidal support 2; the trapezoidal support 2 includes a top surface and a bottom surface, and the top surface is fixedly connected to the beam; the two pressure plate holders 1 are fixedly installed on the bottom surface.
For example, the trapezoidal support 2 can be a bracket with a trapezoidal cross-section along the track direction. The top surface is fixedly installed on the lower surface of the lower beam of the port machinery by bolts, and two pressure plate holders 1 are arranged at both ends of the bottom surface at intervals along the track direction. The two pressure plates 3 are arranged symmetrically and correspond to the pressure bearing plates 4 of the clamping assembly; the clamping assembly is located between the two pressure plate holders. When the port machinery moves along the track, the pressure plates 3 will collide with the corresponding pressure bearing plates 4; When the opening and closing mechanism separates the lower ends of the two clamping arms 9 from the two sides of the track, the clamping assembly will move with the port machinery. When the opening and closing mechanism causes the lower ends of the two clamping arms 9 to be pre-clamped to the two sides of the track, the pressure plates 3 will generate a force that increases the clamping force of the two clamping arms 9, thereby increasing the frictional resistance that ultimately hinders the sliding of the port machinery.
The pressure plates 3 and the pressure bearing plates 4 are arranged correspondingly, so that the pressure plates 3 and the pressure bearing plates 4 can better transmit the thrust. For example, the pressure plates 3 can be inclined downward toward the track direction, so that the pushing force applied by the pressure plates 3 to the pressure bearing plates 4 has a vertical downward component force and a horizontal component force parallel to the extension direction of the track. The horizontal component force is used to transform into the clamping force of the clamp mechanism on the two sides of the track through the clamping plate 6. In turn, frictional resistance is generated on both sides of the track to prevent further slippage. The vertical component force can increase the pressure of the clamping assembly on the upper surface of the track, thereby also increasing the frictional resistance of the upper surface of the track to hinder further slippage. The pressure plates 3 can also be placed vertically. At this time, the pushing force exerted by the pressure plates 3 on the pressure bearing plates 4 is a horizontal force parallel to the direction of the track.
In the actual operation of the port, the width of the wheel tread of the traveling vehicle on the track is 50mm wider than that of the track by the port machinery. When the port machinery is walking, the center line of the wheel tread and the center line of the track surface do not always coincide. If the servo self-locking track clamping device provided by the embodiment of this disclosure is traveling with the port machinery, the center of gravity changes frequently along the vertical track with the traveling trajectory of the port machinery wheels, which may cause tipping. Therefore, the servo self-locking track clamping device provided by this disclosure embodiment also includes an anti-tilt component, and the anti-tilt component includes a mounting frame 16, a connecting rod 17, and a restoring mechanism; the mounting frame 16 is fixedly mounted on the frame; one end of the connecting rod 17 is fixedly connected to the mounting frame 16, and the other end is slidably connected to the restoring mechanism; the sliding direction of the connecting rod 17 is parallel to the track direction; the restoring mechanism is fixedly installed on the trapezoidal support 2; the restoring mechanism is used to apply a restoring force perpendicular to the extending direction of the track to the connecting rod 17.
Further, the restoring mechanism includes a sliding channel and return springs 20. One end of the connecting rod 17 is slidably accommodated in the sliding channel, so that the connecting rod 17 can slide in the sliding channel, so that the connecting rod 17 fixedly connected to the frame of the thrust bracket through the mounting frame 16 has a degree of freedom along the track direction. One end of each return spring 20 is connected with the outer wall of the sliding channel; and the other end of each return spring 20 is connected with the trapezoidal support 2. The number of return springs 20 is multiple, and the multiple return springs 20 are symmetrically set on both sides of the sliding channel, so that the sliding channel can tolerate a certain offset in the direction perpendicular to the track and be able to return elastically. For example, the restoring mechanism also includes an inner cylinder 21 and an outer cylinder 22 connected by a sliding sleeve. One end of the inner cylinder 21 is slidingly sleeved to one end of the outer cylinder 22; the other end of the inner cylinder 21 is fixedly connected to the trapezoidal support 2; the other end of the outer cylinder 22 is fixedly connected to the outer side wall of the sliding channel; the return springs 20 are accommodated in the inner space of the inner cylinder 21 and the outer cylinder 22. The content of the sliding socket and the outer cylinder 22 not only provide accommodating space for the return springs 20, but also can restrict the expansion and contraction direction of the return springs 20 to prevent the return springs 20 from bending. The connecting rod 17 also includes a rotating shaft outer jacket 19 and an inner rotating shaft 18 that are sleeved; the rotating shaft outer jacket 19 is connected to the mounting frame 16; the inner rotating shaft 18 is connected with the restoring mechanism, so that the restoring mechanism can not only buffer deviations perpendicular to the track direction. It can be moved, and the restoring mechanism can better adapt to the change and deviation of the device's movement direction on the track.
The clamp mechanism also includes a top wheel 10; the top wheel 10 is rotatably installed on the clamping arms; the rotation axis of the top wheel 10 is perpendicular to the rotation axis of the clamping arms; the clamping arms 9 are connected to the clamping plate 6 through the top wheel 10; the rotating wheel surface of the top wheel 10 is connected with the side surface of the clamping plate 6.
A clamp arm shaft 23 for clamping arms 9 is installed on bracket 8. A clamp arm shaft hole 24 is set for clamping arms 9 corresponding to clamp arm shaft 23. The clamp arm shaft hole 24 is sleeved on the clamp arm shaft 23 so that the clamping arms 9 can be rotated and installed with the bracket 8. The concave arc surfaces on both sides of the clamping plate 6 can be symmetrically arranged, and the middle part of the clamping plate 6 has the smallest width in the direction perpendicular to the track. The clamping arms 9 are provided with a rotatable top wheel 10, and the rotating wheel surface of the top wheel 10 is connected with the concave arc surfaces on both sides of the clamping plate 6.
In this way, when the clamping plate 6 moves forward or backward, due to the arc structure on the side of the clamping plate 6, the width of the clamping plate 6 in the vertical track direction increases. The rotation of top wheel 10 can make the connection between clamping arms 9 and clamping plate 6 smoother. At the same time, it can ensure that the distance between the side of the clamping plate 6 and the clamping arms 9 remains unchanged. Therefore, when the clamping plate 6 moves forward or backward, the distance between the two clamping arms 9 and the clamping plate 6 will increase, and the clamping force of the two clamping arms 9 on the side of the track will increase accordingly.
The opening and closing mechanism also includes pre-tensioning springs 13, pre-tensioning plates 14, and connecting slide rods 15; the number of the pre-tensioning plates 14 is two; the two pre-tensioning plates 14 are connected in series through the connecting slide rods 15; the pre-tensioning springs 13 are sleeved on the connecting slide rods 15 and located between the two pre-tensioning plates 14; the two ends of the hydraulic cylinder 12 are respectively connected with the two pre-tensioning plates 14.
For example, there are two connecting slide rods 15 and two pre-tensioning springs 13. The pre-tensioning springs 13 are located between the two pre-tensioning plates 14 and are sleeved on the connecting slide rods 15, and the hydraulic cylinder 12 is located between the two pre-tensioning springs 13. The pre-tensioning springs 13 are in a compressed pre-tension state. When the port machinery is in the normal sliding and moving working state on the track, the hydraulic cylinder 12 can be loaded and contracted, so that the pre-tensioning springs 13 are further compressed, and the lower ends of the two clamping arms 9 are moved away and separated from the two sides of the track. When the port machinery is in a stopped state, the hydraulic cylinder 12 can be unloaded and in an extended state. The compressed pre-tensioning springs 13 stretch so that the lower ends of the two clamping arms 9 are close to and close to the two sides of the track, forming the pre-clamping of the clamping assembly on both sides of the track.
The thrust bracket also includes a roller shaft 7; the roller shaft 7 is fixedly installed on the frame; the roller 5 is installed on the frame through the roller shaft 7; waist grooves are provided on the bracket 8 corresponding to the roller shaft 7; the two ends of the roller shaft 7 are inserted into the waist grooves; the bracket 8 is horizontally slidably mounted on the frame through the roller shaft 7. Waist groove is provided on bracket 8 corresponding to the roller shaft 7. The waist groove is inserted at both ends of the roller shaft 7. The bracket 8 is horizontally slidingly mounted on the frame through a roller shaft 7. In addition, the lower ends of the clamping arms 9 are fitted with an elastic damping pad 11 at the position where the lower ends of the clamping arms 9 fit the side of the track.
When the servo self-locking track clamping device provided by this disclosure is in use, the pressure plate assembly is fixedly installed on the lower beam of the port machinery. When the port machinery slides along the track, the pressure plate assembly will slide with the port machinery. The clamping assembly is slidably installed on the track through the roller 5 at the bottom.
The thrust bracket is used as a structural support for the clamping assembly to install the clamp mechanism, and can bear the thrust of the clamping assembly generated by the sliding of the pressure plate assembly along with the port machinery. This driving force is transmitted to the pressure bearing plates 4 of the clamping assembly through the pressure plate 3 of the pressure plate assembly. The clamping plate 6 of the clamping assembly can convert the component force of the pushing force perpendicular to the track into the clamping force of the two clamping arms 9 on the side of the track, and the clamping force will increase with the increase of the pushing force.
The bracket 8, which is slidably mounted on the frame of the thrust bracket, provides rotational support for the two clamping arms 9, so that the two clamping arms 9 form a clamp-shaped clamping structure. The Clamp mechanism forms a clamp-shaped clamping on both sides of the track through the relative rotation of the two clamping arms 9. The opening and closing mechanism can adjust the opening and closing of the two clamping arms 9 through the expansion and contraction of the hydraulic cylinder 12.
Therefore, the servo self-locking track clamping device provided by the embodiment of this disclosure does not require a preset anchor seat, and it moves synchronously with the port machinery on the track in the self-locking closed state, which can switch the working state in real time through the open and closing mechanism. It solves the shortcomings of the existing wind-proof anchoring device, which include the inability to respond in real time, the large amount of engineering, and the high cost. The existing track clamp uses clamp devices to actively clamp the track to generate friction to resist wind. However, due to the limitation of the arrangement space, the active clamping force generated by the track clamps is limited. This disclosure uses wind to generate the clamping force, hence the problem of limited active clamping force generated by the track clamp is overcome. Moreover, the frictional resistance that hinders the port machinery is proportional to the wind force, which overcomes the problem of limited wind resistance and slip resistance of the existing track pressing or track jacking device that can only use part of the dead weight of the equipment to increase the friction force. Therefore, this device is safe and reliable.
Further, the servo self-locking track clamping device provided in this disclosure embodiment also includes an anti-tilt component to prevent the device from tipping over; a top wheel 10 is also set on the clamping arm. The rotation of top wheel 10 can make the connection between clamping arms 9 and clamping plate 6 smoother.
The device embodiments described above are merely illustrative, where the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, it can be located in one place, or it can be distributed to multiple network units. Some or all the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement without creative work.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the scope of the claims.

Claims

A servo self-locking track clamping device, comprising a pressure plate assembly and a clamping assembly, wherein:
the pressure plate assembly includes pressure plate holders (1) fixedly connected with lower beam of port machinery; the number of the pressure plate holders (1) is two; the two pressure plate holders (1) are arranged opposite to each other along extending direction of a track; the clamping assembly is located between the two pressure plate holders (1); the pressure plate holders (1) are provided with a pressure plate (3) for pressing the clamping assembly;

the clamping assembly includes a thrust bracket, a clamp mechanism, and an

opening and closing mechanism connected in sequence; the thrust bracket (8) includes a frame, the clamp mechanism includes a bracket (8) and clamping arms (9); the bracket (8) is horizontally slidably installed on the frame; the number of the clamping arms (9) is two; the two clamping arms (9) are symmetrically arranged on both sides of the track;

the opening and closing mechanism includes a hydraulic cylinder (12); characterised in that the thrust bracket further includes a roller (5), pressure bearing plates (4) and a clamping plate (6); the roller (5) is arranged at the lower part of the frame and connected with top surface of the track; the number of the pressure bearing plates (4) is two; the two pressure bearing plates (4) are respectively provided at two ends of the frame, and are used to bear the pressing pressure applied by the pressure plate; the clamping arms (9) are rotatably installed on the bracket (8); the two ends of the

hydraulic cylinder (12) are connected to the upper ends of the two clamping arms (9) respectively; the length of the hydraulic cylinder (12) is stretchable to make the lower ends of the two retractable arms rotate close to and fit with the two sides of the track, or rotate far away and separate from the two sides of the track;

the clamping plate (6) is arranged on the upper part of the frame, and is sandwiched between the two clamping arms (9); the two sides connected to the clamping plate (6) and the clamping arms (9) are both curved surfaces that are concave in the horizontal direction.
The servo self-locking track clamping device according to claim 1, wherein: the pressure plate assembly also includes trapezoidal support (2); the pressure plate holder (1) is fixedly connected to the lower beam of the port machinery through the trapezoidal support (2); the trapezoidal support (2) includes a top surface and a bottom surface, and the top surface is fixedly connected to the beam; the two pressure plate holders (1) are fixedly installed on the bottom surface.
The servo self-locking track clamping device according to claim 2, wherein: the servo self-locking track clamping device also includes an anti-tilt component, and the anti-tilt component includes a mounting frame (16), a connecting rod (17), and a restoring mechanism; the mounting frame (16) is fixedly mounted on the frame; one end of the connecting rod (17) is fixedly connected to the mounting frame (16), and the other end is slidably connected to the restoring mechanism; the sliding direction of the connecting rod (17) is parallel to the track direction; the restoring mechanism is fixedly installed on the trapezoidal support (2); the restoring mechanism is used to apply a restoring force perpendicular to the extending direction of the track to the connecting rod (17).
The servo self-locking track clamping device according to claim 3, wherein: the restoring mechanism includes a sliding channel and return springs (20); one end of the connecting rod (17) is slidably accommodated in the sliding channel, so that the connecting rod (17) can slide in the sliding channel; one end of each return spring (20) is connected with the outer wall of the sliding channel; and the other end of each return spring (20) is connected with the trapezoidal support (2); the number of return springs (20) is multiple, and the multiple return springs (20) are symmetrically set on both sides of the sliding channel.
The servo self-locking track clamping device according to claim 4, wherein: the restoring mechanism also includes an inner cylinder (21) and an outer cylinder (22) connected by a sliding sleeve; one end of the inner cylinder (21) is slidingly sleeved to one end of the outer cylinder (22); the other end of the inner cylinder (21) is fixedly connected to the trapezoidal support (2); the other end of the outer cylinder (22) is fixedly connected to the outer side wall of the sliding channel; the return springs (20) are accommodated in the inner space of the inner cylinder (21) and the outer cylinder (22).
The servo self-locking track clamping device according to claim 3, wherein: the Connecting rod ((17)) includes a rotating shaft outer jacket (19) and an inner rotating shaft (18) that are sleeved; the rotating shaft outer jacket (19) is connected to the mounting frame (16); the inner rotating shaft (18) is connected with the restoring mechanism.
The servo self-locking track clamping device according to claim 1, wherein: the clamp mechanism also includes a top wheel (10); the top wheel (10) is rotatably installed on the clamping arms; the rotation axis of the top wheel (10) is perpendicular to the rotation axis of the clamping arms; the clamping arms (9) are connected to the clamping plate (6) through the top wheel (10); the rotating wheel surface of the top wheel (10) is connected with the side surface of the clamping plate (6).
The servo self-locking track clamping device according to claim 1, wherein: the opening and closing mechanism also includes pre-tensioning springs (13), pre-tensioning plates (14), and connecting slide rods (15); the number of the pre-tensioning plates (14) is two; the two pre-tensioning plates (14) are connected in series through the connecting slide rods (15); the pre-tensioning springs (13) are sleeved on the connecting slide rods (15) and located between the two pre-tensioning plates (14); the two ends of the hydraulic cylinder (12) are respectively connected with the two pre-tensioning plates (14).
The servo self-locking track clamping device according to claim 1, wherein: the thrust Bracket ((8)) also includes a roller shaft (7); the roller shaft (7) is fixedly installed on the frame; the roller (5) is installed on the frame through the roller shaft (7); waist grooves are provided on the bracket (8) corresponding to the roller shaft (7); the two ends of the roller shaft (7) are inserted into the waist grooves; the bracket (8) is horizontally slidably mounted on the frame through the roller shaft (7).
The servo self-locking track clamping device according to claim 1, wherein: the lower ends of the clamping arms (9) are fitted with an elastic damping pad (11) at the position where the lower ends of the clamping arms (9) fit the side of the track.