WO2020248314A1

WO2020248314A1 - Follow-up-type self-locking rail clamping device

Info

Publication number: WO2020248314A1
Application number: PCT/CN2019/095173
Authority: WO
Inventors: 袁建明; 王磊; 蔺佰文; 郑龙飞; 郝永全; 赵汝新; 胡勇; 韦浩; 杨仲
Original assignee: 武汉开锐海洋起重技术有限公司
Priority date: 2019-06-13
Filing date: 2019-07-09
Publication date: 2020-12-17
Also published as: CN110172877A; CN110172877B; EP3985172B1; EP3985172A4; EP3985172A1

Abstract

A follow-up-type self-locking rail clamping device. The device comprises a pressing plate assembly and a clamping assembly, and a pressing plate (3) for pushing and pressing the clamping assembly is arranged on a pressing plate frame (1); the clamping assembly comprises a thrust support, a clamp mechanism, and an opening and closing mechanism which are sequentially connected, the clamp mechanism comprises a bracket (8) and clamping arms (9), the bracket (8) is horizontally and slidably mounted on a frame body, the clamping arms (9) are rotatably mounted on the bracket (8), and two clamping arms (9) are provided and are symmetrically arranged on two sides of a track; the opening and closing mechanism comprises a hydraulic cylinder (12), two ends of the hydraulic cylinder (12) are correspondingly connected to upper ends of the two clamping arms (9), and the length of the hydraulic cylinder (12) is telescopic; and a clamping wedge plate (6) of the thrust support is clamped between the two clamping arms (9), and two side faces of the clamping wedge plate (6) that are connected to the clamping arms (9) are horizontally concave cambered surfaces. The follow-up-type self-locking rail clamping device is safe and reliable, is in synchronous movement with port machinery on the track in a self-locking closed state, switches the working state through a real-time response of the opening and closing mechanism, the clamping force is generated by a wind force, and the anti-wind and anti-skid capability is high.

Description

Follow-up self-locking rail clamping device

Technical field

The invention relates to the technical field of port machinery, in particular to a follow-up self-locking rail clamping device.

Background technique

Large-scale rail-mounted port machinery operating outdoors are often attacked by typhoons, hurricanes and tornadoes, and bear extremely heavy wind loads. Although such equipment will consider the working conditions under severe wind loads in the design process, the phenomenon of equipment being blown down by high winds still occurs. The main reason is that the anti-overturning stability of the equipment in the design is calculated based on the static state of the equipment; if the equipment has insufficient anti-skid ability under extreme wind load, it will accelerate along the track after being driven by the strong wind, and the nearby equipment In the event of a collision or collision with a limit baffle set at the end of the track, the overturning moment generated by the inertial force is much greater than the anti-overturning moment generated by the equipment's own weight, causing the equipment to overturn. To prevent such accidents, large-scale rail-mounted port machinery must be equipped with reliable wind and anti-skid devices. At present, there are mainly three types of wind-proof and anti-skid devices: wind-proof anchoring device, rail pressing or top rail device, and rail clamp device.

The windproof anchoring device uses an anchoring device to fix the equipment at a designated position (anchoring seat), and restricts the movement of the equipment by the anchoring device. The advantages of the wind-proof anchoring device are simple structure, safe and reliable, but inconvenient to operate. When a strong wind arrives, 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 event of a sudden gust or tornado, and it needs A number of anchor seats are set along the track, which has a large amount of engineering and high cost.

The working principle of the rail press or rail jack is to use auxiliary devices to press part of the equipment's own weight to the top of the rail, and to resist wind by increasing the friction between the equipment and the rail 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 the rail clamp is to use the friction force generated by the clamp device to actively clamp the rail to resist wind. This type of device has its own power device to provide clamping force, which can provide greater clamping force. The greater the clamping force provided by the power device of the rail clamp, the larger its volume will increase. Therefore, due to the limitation of the arrangement space, the active clamping force generated by the rail clamp is limited. In addition, rail clamps are usually fixedly installed at the front end of large-scale rail-type port machinery traveling trolleys, which have poor track adaptability. In case of uneven track in the walking section caused by the settlement of the port wharf, the rail clamps The clamp may not clamp the track.

At present, the above-mentioned three types of wind-proof and anti-skid devices are widely used in various rail-mounted port machinery. However, due to their obvious shortcomings, when encountering extreme wind loads, the wind-proof and anti-skid devices often have insufficient wind and anti-skid capabilities or malfunctions, resulting in The accidents of equipment being blown by strong winds and tipping over or falling into the sea have seriously affected the normal production operations of the port area and caused the port enterprises to bear huge property losses. Therefore, it is urgent to develop a safe and reliable windproof and anti-skid device.

Summary of the invention

The embodiment of the present invention provides a follow-up self-locking rail clamping device to provide a safe and reliable windproof and anti-skid device.

The embodiment of the present invention provides a follow-up self-locking rail clamping device, which includes a pressing plate assembly and a clamping assembly;

The pressure plate assembly includes a pressure plate frame fixedly connected to the lower cross beam of the port machinery. There are two pressure plate frames. The two pressure plate frames are arranged opposite to each other along the extending direction of the track. The clamping assembly is located between the two pressure plate frames. Between, the pressure plate rack is 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 that are sequentially connected. The thrust bracket includes a frame body, a roller, a pressure plate and a clamping wedge plate; the roller is arranged at the lower part of the frame body, and The top surface of the track is connected; there are two pressure-bearing plates, which are respectively arranged at both ends of the frame body, and are used to receive the pressure applied by the pressure plate;

The clamping mechanism includes a bracket and a clamping arm. The bracket is horizontally slidably mounted on the frame, the clamping arm is rotatably mounted on the bracket, and there are two clamping arms symmetrically arranged on the On both sides of the track

The opening and closing mechanism includes a hydraulic cylinder. The two ends of the hydraulic cylinder are respectively connected to the upper ends of the two clamping arms. The length of the hydraulic cylinder is stretchable so that the lower ends of the two clamping arms are rotated and approached and contacted. The two sides of the track are attached to each other, or rotated away from and separated from the two sides of the track;

The wedge clamping plate is arranged on the upper part of the frame body and is clamped between the two clamping arms, and the two sides of the clamping wedge plate and the clamping arms are both curved surfaces that are concave in the horizontal direction .

In the follow-up self-locking rail clamping device provided by the present invention, 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, and the clamping assembly slides through the bottom roller Installed on the track. The thrust bracket is used as the structural support of the clamping assembly to install the clamping mechanism, and can bear the pushing force of the clamping assembly generated by the pressure plate assembly sliding with the port machinery, and this pushing force is transmitted to the clamping through the pressure plate of the pressure plate assembly The pressure plate of the component; the clamping wedge plate of the clamping component can convert the component force of the driving force perpendicular to the track direction into the clamping force of the two clamping arms on the side of the track, and make this clamping force follow the driving force Increase and increase. The clamping mechanism forms a clamping clamping on both sides of the rail through the relative rotation of the two clamping arms; the opening and closing mechanism can adjust the opening and closing of the two clamping arms through the expansion and contraction of the hydraulic cylinder. There is no need to preset the anchor seat, and it moves synchronously with the port machinery on the track in the self-locking closed state. It can respond to the switching working state in real time through the opening and closing mechanism, which overcomes the inability of the windproof anchoring device to respond in real time, and the large amount of engineering and high cost The problem: The clamping force generated by the wind force overcomes the problem that the rail clamp uses the clamp device to actively clamp the rail to generate friction to resist the wind, and is restricted by the limitation of the arrangement space, and the active clamping force generated by the rail clamp is limited, and The frictional resistance that hinders the port machinery is proportional to the wind, and overcomes the problem that the rail press or the top rail can only use part of the equipment's own weight to increase the friction, and the wind resistance and slip resistance are limited.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a three-dimensional structural diagram of a follow-up self-locking rail clamping device provided by an embodiment of the present invention;

2 is a schematic structural diagram of a follow-up self-locking rail clamping device provided by an embodiment of the present invention;

Figure 3 is a side view of a follow-up self-locking rail clamping device provided by an embodiment of the present invention;

4 is a schematic diagram of the structure of a pressing plate assembly provided by an embodiment of the present invention;

5 is a cross-sectional view of the A-A section of the pressure plate assembly provided by the embodiment of the present invention;

Figure 6 is a schematic structural diagram of a thrust bracket provided by an embodiment of the present invention;

Figure 7 is a top view of a thrust bracket provided by an embodiment of the present invention;

8 is a schematic diagram of the structure of the clamping mechanism bracket provided by the embodiment of the present invention;

Figure 9 is a top view of a clamp mechanism bracket provided by an embodiment of the present invention;

10 is a schematic diagram of the structure of a clamp arm provided by an embodiment of the present invention;

Figure 11 is a top view of a clamping arm provided by an embodiment of the present invention;

Figure 12 is a schematic structural diagram of an opening and closing mechanism provided by an embodiment of the present invention;

Figure 13 is a schematic structural diagram of an anti-tilt assembly provided by an embodiment of the present invention;

Figure 14 is a B-B cross-sectional view of an anti-tilt assembly provided by an embodiment of the present invention;

In the figure: 1. Pressure plate rack; 2. Trapezoidal support; 3. Pressure plate; 4. Pressure bearing plate; 5. Roller; 6. Clamping plate; 7. Roller shaft; 8. Bracket; 9. Clamping arm; 10. Top wheel; 11. Elastic damping pad; 12. Hydraulic cylinder; 13. Pre-tension spring; 14. Pre-tension plate; 15. Connecting sliding rod; 16. Mounting frame; 17, Connecting rod; 18. Inner shaft; 19. Rotary shaft cover; 20. Return spring; 21. Inner cylinder; 22. Outer cylinder; 23. Clamp arm shaft; 24. Clamp arm shaft hole.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

As shown in Figures 1-14, the present invention provides a follow-up self-locking rail clamping device, which includes a pressure plate assembly and a clamping assembly. The pressure plate assembly includes a pressure plate rack 1 fixedly connected to the lower beam of the port machinery. There are two pressure plate racks 1, and the two pressure plate racks 1 are arranged opposite to each other along the extending direction of the track. The clamping assembly is located between the two pressure plate racks 1 on the pressure plate rack 1. A pressing plate 3 for pressing the clamping assembly is provided. 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 body, a roller 5, a pressure bearing plate 4 and a clamping wedge plate 6; the roller 5 is arranged at the lower part of the frame and connected to the top surface of the track ; There are two pressure-bearing plates 4, which are respectively arranged at both ends of the frame body, and are used to receive the pressure exerted by the pressure-bearing plate 3. The clamping mechanism includes a bracket 8 and a clamping arm 9. The bracket 8 is horizontally slidably mounted on the frame body, and the clamping arm 9 is rotatably mounted on the bracket 8. There are two clamping arms 9 arranged symmetrically on both sides of the rail. The opening and closing mechanism includes a hydraulic cylinder 12. Both 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 can be extended and contracted so that the lower ends of the two clamping arms 9 rotate close to each other and are aligned with the two sides of the rail. Fit, or rotate away from and separate from the sides of the track. The wedge plate 6 is arranged on the upper part of the frame and sandwiched between the two clamping arms 9. The two sides of the wedge plate 6 and the clamping arm 9 are both curved surfaces that are concave in the horizontal direction.

In the follow-up self-locking rail clamping device provided by the embodiment of the present invention, 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, and the clamping assembly passes through the bottom The roller 5 is slidably mounted on the track. The thrust bracket is used as the structural support of the clamping assembly to install the clamping mechanism, and can bear the pushing force of the clamping assembly generated by the sliding of the pressure plate assembly with the port machinery. This pushing force is transmitted to the clamping assembly through the pressure plate 3 of the pressure plate assembly. The pressure-bearing plate 4 of the clamping assembly; the wedge plate 6 of the clamping assembly can convert the component force of the driving force perpendicular to the track direction into the clamping force of the two clamping arms 9 on the side of the track, and make this clamping force follow The increase of this driving force increases. The bracket 8 horizontally slidably mounted on the frame of the thrust bracket provides rotation support for the two clamping arms 9 so that the two clamping arms 9 form a clamp-shaped clamping structure; the clamping mechanism forms a pair of pairs by the relative rotation of the two clamping arms 9 The two sides of the track are clamped in a clamp shape; 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 the working state of normal sliding movement on the track, the follow-up self-locking rail clamping device provided by the embodiment of the present invention should be in a follow-up state of self-locking closed; at this time, the hydraulic cylinder 12 can be in In the retracted state, the lower ends of the two clamping arms 9 are far away 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, and the clamping assembly will be pushed by the pressure plate assembly on the track with the port machinery. slide. When the port machinery is in a stopped state, the hydraulic cylinder 12 can be extended, so that the lower ends of the two clamping arms 9 are close to and close to the two sides of the rail to form a pre-clamping. At this time, the device provided by the embodiment of the present invention The movable self-locking rail clamping device is in a self-locking and open windproof and anti-skid state. When a strong wind strikes, if the port machinery slides along the track, the pressure plate assembly will apply a pushing force to the pressure plate 4 of the clamping assembly through the pressure plate 3 and cause the thrust bracket to slip; the clamping wedge plate 6 and The two sides connected by the clamping arm 9 are both curved surfaces that are concave in the horizontal direction. When the clamping wedge 6 slides, the two sliding arms of the clamping wedge 6 will follow the curved surfaces on both sides of the clamping wedge 6 However, the distance between the two clamp arms 9 is increased, so that the lower ends of the two clamp arms 9 generate greater clamping force on the two sides of the rail, which prevents the clamp arms 9 from sliding along the rail with the thrust bracket; at the same time, the clamp arms 9 The wedge plate 6 has a reaction force that hinders its sliding movement, hinders the sliding movement of the thrust bracket, and is transmitted to the pressure plate 3 through the pressure bearing plate 4, forming an obstacle to the sliding of the port machinery. The greater the wind force that the port machinery bears to make it slip, the greater the component force along the track of the pushing force exerted by the pressure plate 3 on the pressure plate 4, and the two clamping arms 9 are formed in a pincer shape. The greater the clamping force of the clamping structure on the two sides of the track, the greater the frictional resistance of the obstructing device along the track direction generated by this clamping force from continuing to slip. In the embodiment of the invention, the frictional resistance generated by the follow-up self-locking rail clamping device that hinders the sliding of the port machinery is greater, and this frictional resistance is proportional to the wind.

Therefore, the follow-up self-locking rail clamping device provided by the embodiment of the present invention does not need to preset an anchor seat, moves synchronously with the port machinery on the track in the self-locking closed state, and can respond to switching working states in real time through the opening and closing mechanism, It overcomes the problems that the wind-proof anchoring device cannot respond in real time, the amount of work is large, and the cost is high; the clamping force is generated by the wind, which overcomes the friction force generated by the rail clamp using the clamp device to actively clamp the track to resist the wind, which is restricted by the layout space The limitation of the rail clamp is the limited active clamping force generated by the rail clamp, and the friction resistance of the port machinery is directly proportional to the wind force. It overcomes the rail clamp or the top rail device can only use part of the equipment to increase the friction force, and has the ability to resist wind and skid. Limited problems, safe and reliable.

In the follow-up self-locking rail clamping device provided by the embodiment of the present invention, the pressure plate assembly may further include a trapezoidal support 2 through which the pressure plate rack 1 is fixedly connected to the lower beam of the port machinery. The trapezoidal support 2 includes a top surface and a bottom surface, the top surface is fixedly connected with the cross beam, and two pressure plate racks 1 are fixedly installed on the bottom surface. For example, the trapezoidal bracket 2 can be a bracket with a trapezoidal cross-section along the track direction. The top surface is fixed on the lower surface of the lower beam of the port machinery by bolts. The two pressure plate racks 1 are arranged at both ends of the bottom surface at intervals along the track direction, so that the two The two pressure plates 3 are arranged symmetrically and correspond to the pressure plate 4 of the clamping assembly; the clamping assembly is located between the two pressure plate racks 1. When the port machinery moves along the track, the pressure plate 3 will The pressure plate 4 conflicts; when the opening and closing mechanism separates the lower ends of the two clamping arms 9 from the two sides of the rail, the clamping assembly will move with the port machinery. When the opening and closing mechanism makes the lower ends of the two clamping arms 9 pre-clamp and When running on both sides of the track, the pressure plate 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 plate 3 and the pressure plate 4 are arranged correspondingly, so that the pressure plate 3 and the pressure plate 4 can better transmit thrust; for example, the pressure plate 3 can be inclined downward toward the track direction, so that the pressure plate 3 The pushing force applied to the pressure bearing plate 4 has a vertical downward direction component force and a horizontal component force parallel to the extension direction of the track. The horizontal component force is used to transform the wedge plate 6 into a clamping mechanism on the two sides of the track. The clamping force generates frictional resistance on both sides of the track to prevent further sliding. The vertical component force can increase the pressure of the clamping assembly on the upper surface of the track, thereby increasing the frictional resistance of the top surface of the track to hinder further sliding; The pressure plate 3 can also be placed vertically. At this time, the pushing force applied by the pressure plate 3 to the pressure plate 4 is a horizontal force parallel to the track direction.

In the actual operation of the port wharf, the width of the wheel tread width of the driving wheel of the port machinery walking on the track is one step wider than the track. 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 follow-up self-locking rail clamping device provided by the embodiment of the present invention is traveling with the port machinery, the center of gravity changes frequently in the vertical rail direction following the traveling trajectory of the port machinery wheels, which may cause tipping. Therefore, the follow-up self-locking rail clamping device provided by the embodiment of the present invention may also include an anti-tilt assembly, and the anti-tilt assembly may include a mounting frame 16, a connecting rod 17, and a return mechanism. The mounting frame 16 is fixedly installed on the frame body. One end of the connecting rod 17 is fixedly connected to the mounting frame 16, and the other end is slidably connected to the recovery mechanism, and 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, and the restoring mechanism is used to apply a restoring force perpendicular to the extending direction of the rail to the connecting rod 17. Further, the return mechanism may include a sliding connection channel and a return spring 20. One end of the connecting rod 17 is slidably accommodated in the sliding connection channel, so that the connecting rod 17 can slide in the sliding connection channel, so that the connecting rod 17 fixedly connected to the thrust bracket frame through the mounting frame 16 has freedom along the track direction Degree; one end of the return spring 20 is connected with the outer side wall of the sliding channel, and the other end is connected with the trapezoidal support 2. There are multiple return springs 20 and are symmetrically arranged on both sides of the sliding channel, so that the sliding channel can be perpendicular to the track direction Tolerate a certain deviation and be able to recover elastically. For example, the recovery mechanism may also include an inner cylinder 21 and an outer cylinder 22 that are slidingly sleeved. One end of the inner cylinder 21 is slidingly sleeved to one end of the outer cylinder 22, and the other end of the inner cylinder 21 is fixedly connected to the trapezoidal bracket 2. The other end of 22 is fixedly connected to the outer side wall of the sliding channel, and the return spring 20 is accommodated in the inner space of the inner cylinder 21 and the outer cylinder 22. The content of the sliding sleeve and the outer cylinder 22 not only provide a accommodating space for the return spring 20, but also can restrict the expansion and contraction direction of the return spring 20 to prevent the return spring 20 from bending. The connecting rod 17 may also include a rotating shaft jacket 19 and an inner rotating shaft 18 that are sleeved. The rotating shaft jacket 19 is connected to the mounting frame 16, and the inner rotating shaft 18 is connected to the return mechanism, so that the return mechanism can not only buffer the deviation perpendicular to the track direction. It also enables the recovery mechanism to better adapt to changes and deviations in the direction of movement of the device on the track.

In the follow-up self-locking rail clamping device provided by the embodiment of the present invention, the clamping mechanism may further include a top wheel 10, the top wheel 10 is rotatably mounted on the clamping arm 9, and the rotation axis of the top wheel 10 is perpendicular to the rotation axis of the clamping arm 9 , The clamping arm 9 is connected with the clamping plate 6 through the top wheel 10, and the rotating wheel surface of the top wheel 10 is connected with the side surface of the clamping plate 6. The bracket 8 may be provided with a clamp arm shaft 23 for mounting the clamp arm 9, and the clamp arm 9 is provided with a clamp arm shaft hole 24 corresponding to the clamp arm shaft 23. The clamp arm shaft hole 24 is sleeved on the clamp arm shaft 23 so that the clamp arm 9 can Rotating installation and bracket 8. The concave arc surfaces on both sides of the wedge plate 6 can be symmetrically arranged, and the middle of the wedge plate 6 has the smallest width in the direction perpendicular to the track. A rotatable top wheel 10 is provided on the clamping arm 9, and the rotating surface of the top wheel 10 is connected with the concave arc surfaces on both sides of the clamping wedge plate 6; in this way, the clamping wedge plate 6 moves forward or backward. At this time, due to the arc structure on the side of the wedge plate 6, the width of the wedge plate 6 in the vertical rail direction increases, and the rotation of the top wheel 10 can make the connection between the clamp arm 9 and the wedge plate 6 smoother, and at the same time, Ensure that the distance between the side of the clamping wedge plate 6 and the clamping arm 9 remains unchanged; so that when the clamping wedge plate 6 moves forward or backward, the distance between the two clamping arms 9 and the connection part of the clamping wedge plate 6 Increase the clamping force of the two clamping arms 9 on the side of the rail.

In the follow-up self-locking rail clamping device provided by the embodiment of the present invention, the opening and closing mechanism may further include a pre-tensioning spring 13, a pre-tensioning plate 14 and a connecting slide bar 15. There are two pre-tensioning plates 14, and the two pre-tensioning plates 14 are connected in series through the connecting slide bar 15. The pre-tensioning spring 13 is sleeved on the connecting slide bar 15 and located between the two pre-tensioning plates 14, and the two ends of the hydraulic cylinder 12 They are connected to two pre-tensioning plates 14 respectively. For example, the connecting slide bar 15 and the pre-tensioning spring 13 may each be two. The pre-tensioning spring 13 is located between the two pre-tensioning plates 14, sleeved on the connecting slide bar 15, and the hydraulic cylinder 12 is located in the two pre-tensioning plates. Tighten between spring 13. The pre-tension spring 13 is in a compressed pre-tension state; when the port machinery is in a normal sliding and moving working state on the track, the hydraulic cylinder 12 can be loaded and contracted, so that the pre-tension spring 13 is further compressed and the two clamps The lower end of the arm 9 is far away from 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 to be in an extended state, and the compressed pre-tension spring 13 extends to make the two clamping arms 9 The lower ends of the two sides are close to and close to the two sides of the rail to form the pre-clamping of the clamping component to the two sides of the rail.

In the follow-up self-locking rail clamping device provided by the embodiment of the present invention, the thrust bracket may further include a roller shaft 7 fixedly mounted on the frame body, and the roller 5 is mounted on the frame body through the roller shaft 7. The bracket 8 is provided with waist-shaped grooves corresponding to the roller shaft 7, the two ends of the roller shaft 7 are inserted into the waist-shaped grooves, and the bracket 8 is horizontally slidably installed on the frame body through the roller shaft 7. In addition, the position where the lower end of the clamp arm 9 is attached to the side surface of the track may also be provided with an elastic damping pad 11.

It can be seen from the above embodiments that in the follow-up self-locking rail clamping device provided by the present invention, 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 mounted on the rail via the roller 5 at the bottom. The thrust bracket is used as the structural support of the clamping assembly to install the clamping mechanism, and can bear the pushing force of the clamping assembly generated by the sliding of the pressure plate assembly with the port machinery. This pushing force is transmitted to the clamping assembly through the pressure plate 3 of the pressure plate assembly. The pressure-bearing plate 4 of the clamping assembly; the wedge plate 6 of the clamping assembly can convert the component force of the driving force perpendicular to the track direction into the clamping force of the two clamping arms 9 on the side of the track, and make this clamping force follow The increase of this driving force increases. The bracket 8 horizontally slidably mounted on the frame of the thrust bracket provides rotation support for the two clamping arms 9 so that the two clamping arms 9 form a clamp-shaped clamping structure; the clamping mechanism forms a pair of pairs by the relative rotation of the two clamping arms 9 The two sides of the track are clamped in a clamp shape; 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 follow-up self-locking rail clamping device provided by the embodiment of the present invention does not need to preset an anchor seat, moves synchronously with the port machinery on the track in the self-locking closed state, and can respond to switching working states in real time through the opening and closing mechanism, It overcomes the problems that the wind-proof anchoring device cannot respond in real time, the amount of work is large, and the cost is high; the clamping force is generated by the wind, which overcomes the friction force generated by the rail clamp using the clamp device to actively clamp the track to resist the wind, which is restricted by the layout space The limitation of the rail clamp is the limited active clamping force generated by the rail clamp, and the friction resistance of the port machinery is directly proportional to the wind force. It overcomes the rail clamp or the top rail device can only use part of the equipment to increase the friction force, and has the ability to resist wind and skid. Limited problems, safe and reliable. Further, the follow-up self-locking rail clamping device provided by the embodiment of the present invention may also include an anti-tilting component to prevent the device from tipping over; a top wheel 10 can also be provided on the clamp arm 9 to rotate the top wheel 10 The connection between the clamping arm 9 and the clamping wedge plate 6 can be made smoother.

The device embodiments described above are merely illustrative. 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, that is, they may be located in One place, or it can be distributed to multiple network units. Some or all of the modules may 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 it without creative work.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A follow-up self-locking rail clamping device, which is characterized by comprising a pressing plate assembly and a clamping assembly;

The pressure plate assembly includes a pressure plate frame fixedly connected to the lower cross beam of the port machinery. There are two pressure plate frames. The two pressure plate frames are arranged opposite to each other along the extending direction of the track. The clamping assembly is located between the two pressure plate frames. Between, the pressure plate rack is 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 that are sequentially connected. The thrust bracket includes a frame body, a roller, a pressure plate and a clamping wedge plate; the roller is arranged at the lower part of the frame body, and The top surface of the track is connected; there are two pressure-bearing plates, which are respectively arranged at both ends of the frame body, and are used to receive the pressure applied by the pressure plate;

The clamping mechanism includes a bracket and a clamping arm. The bracket is horizontally slidably mounted on the frame, the clamping arm is rotatably mounted on the bracket, and there are two clamping arms symmetrically arranged on the On both sides of the track

The opening and closing mechanism includes a hydraulic cylinder. The two ends of the hydraulic cylinder are respectively connected to the upper ends of the two clamping arms. The length of the hydraulic cylinder is stretchable so that the lower ends of the two clamping arms are rotated and approached and contacted. The two sides of the track are attached to each other, or rotated away from and separated from the two sides of the track;

The wedge clamping plate is arranged on the upper part of the frame body and is clamped between the two clamping arms, and the two sides of the clamping wedge plate and the clamping arms are both curved surfaces that are concave in the horizontal direction .
The follow-up self-locking rail clamping device according to claim 1, wherein the pressure plate assembly further comprises a trapezoidal support, and the pressure plate support is fixedly connected to the lower cross beam of the port machinery through the trapezoidal support; The trapezoidal support includes a top surface and a bottom surface, the top surface is fixedly connected with the cross beam, and two pressure plate racks are fixedly installed on the bottom surface.
The follow-up self-locking rail clamping device according to claim 2, further comprising an anti-tilt component, the anti-tilt component comprising a mounting frame, a connecting rod and a return mechanism; the mounting frame is fixedly mounted on the Frame body, one end of the connecting rod is fixedly connected to the mounting frame, and the other end is slidably connected to the return mechanism, the sliding direction of which is parallel to the rail direction; the return mechanism is fixedly installed on the trapezoidal bracket, the return mechanism It is used to apply a restoring force perpendicular to the extension direction of the rail to the connecting rod.
The follow-up self-locking rail clamping device according to claim 3, wherein the return mechanism comprises a sliding connection channel and a recovery spring, and one end of the connecting rod is slidably received in the sliding connection channel; One end of the return spring is connected with the outer side wall of the sliding connection channel, and the other end is connected with the trapezoidal support. There are multiple return springs and are symmetrically arranged on both sides of the sliding connection channel.
The follow-up self-locking rail clamping device according to claim 4, wherein the return mechanism further comprises an inner cylinder and an outer cylinder that are slidingly sleeved, and one end of the inner cylinder is slidingly sleeved on the outer cylinder One end of the inner cylinder, the other end of the inner cylinder is fixedly connected to the trapezoidal support, the other end of the outer cylinder is fixedly connected to the outer side wall of the sliding channel, and the return spring is accommodated in the inner cylinder and the The inner space of the outer tube.
The follow-up self-locking rail clamping device according to claim 3, wherein the connecting rod comprises a rotating shaft outer sleeve and an inner rotating shaft that are sleeved, and the rotating shaft outer sleeve is connected to the mounting frame, and the inner The rotating shaft is connected with the restoring mechanism.
The follow-up self-locking rail clamping device according to claim 1, wherein the clamping mechanism further comprises a top wheel, the top wheel is rotatably mounted on the clamp arm, and the rotation axis of the top wheel is connected to The rotation axis of the clamping arm is perpendicular, the clamping arm is connected to the clamping wedge plate through the top wheel, and the rotating wheel surface of the top wheel is connected to the side surface of the clamping wedge plate.
The follow-up self-locking rail clamping device according to claim 1, wherein the opening and closing mechanism further comprises a pre-tensioning spring, a pre-tensioning plate and a connecting sliding rod; there are two pre-tensioning plates, two The pretensioning plate is connected in series through the connecting slide rod, the pretensioning spring is sleeved on the connecting slide rod and is located between the two pretensioning plates, and two ends of the hydraulic cylinder are connected to two The pre-tensioning plates are connected.
The follow-up self-locking rail clamping device according to claim 1, wherein the thrust bracket further comprises a roller shaft, the roller shaft is fixedly installed on the frame, and the roller is installed through the roller shaft In the frame; the bracket is provided with a waist-shaped groove corresponding to the roller shaft, the two ends of the roller shaft are inserted into the waist-shaped groove, and the bracket is horizontally slidably mounted on the roller shaft The frame body.
The follow-up self-locking rail clamping device according to claim 1, wherein the position where the lower end of the clamping arm is attached to the side surface of the rail is provided with an elastic damping pad.