A barrier device

Abstract

This application discloses a braking device, comprising a rope reel, a turbine oil reservoir, and a caliper brake disc connected in sequence. A hydraulic lock, connected to the turbine oil reservoir and the passive clamp of the caliper brake disc via an oil circuit, is used. The turbine oil reservoir delivers oil to the hydraulic lock via the oil circuit. Opening the hydraulic lock activates the passive clamp to tighten the caliper brake disc. This application's design, with its transmission connection, allows the rope reel to stop rotating when the caliper brake disc brakes. The process of the turbine oil reservoir delivering oil to the hydraulic lock and activating the passive clamp after opening the hydraulic lock provides a buffer of resistance and time for braking the rope reel. The resistance applied by this braking device ranges from the resistance of the hydraulic turbine oil reservoir to dynamic friction, with a small resistance variation that can be accurately estimated.

Description

Technical Field

[0001] This application belongs to the field of buffering and deceleration technology for fast-moving objects, and particularly relates to a blocking device. Background Technology

[0002] In known technologies, the time from contact between the arresting cable and the target object to their complete cessation of movement is relatively short, making it difficult for the arresting device to accurately determine when to apply resistance. To address this issue, resistance is applied to the arresting cable before contact between the device and the target object. However, in practice, this method frequently fails due to excessive impact, such as excessive resistance on the arresting cable, excessively high speed of the target object, or the initial state of the arresting cable being perpendicular to the velocity direction of the target object.

[0003] In summary, the resistance applied by traditional arresting devices changes from static friction to dynamic friction, resulting in a large change in resistance that cannot be accurately estimated. Summary of the Invention

[0004] In view of this, this application provides a barrier device, the purpose of which is to solve the problem that the barrier system in the known art fails to stop due to excessive impact.

[0005] To address the above problems, this application provides the following solution:

[0006] A stopping device includes a rope reel and a clamp brake disc connected in a transmission manner, and further includes:

[0007] A turbine oil reservoir is located between the rope reel and the caliper brake disc, and the turbine oil reservoir is drively connected to the rope reel and the caliper brake disc.

[0008] A hydraulic lock is connected to the turbine oil reservoir and the passive clamp of the caliper brake disc via an oil circuit. The turbine oil reservoir delivers oil to the hydraulic lock through the oil circuit. When the hydraulic lock is opened, it activates the passive clamp to clamp the caliper brake disc.

[0009] Optional, including:

[0010] After the arresting cable is struck by the target object, it stretches and extends, causing the cable reel, the turbine oil tank, and the clamp brake disc in the transmission connection to rotate together;

[0011] The rotating turbine oil tank provides cushioning resistance to the rope reel and opens the hydraulic lock;

[0012] Once opened, the hydraulic lock engages the clamp brake disc, thereby slowing down and stopping the rope disc from rotating.

[0013] Optionally, the rotating turbine oil reservoir provides resistance cushioning for the cable reel, including:

[0014] The turbine oil reservoir includes a turbine and high-density oil, which provides resistance to the turbine to prevent it from rotating, thereby providing buffering resistance to the cable reel.

[0015] Optionally, opening the hydraulic lock includes:

[0016] The rotation of the turbine delivers the high-density oil through the oil circuit to the hydraulic lock, thus opening the hydraulic lock.

[0017] Optionally, the high-density oil is an oil with a viscosity reaching a preset threshold.

[0018] Optionally, activating the passive caliper includes:

[0019] The hydraulic lock inputs high-density oil into the passive caliper through the oil circuit, pushing the latch on the passive caliper, thereby activating the passive caliper to clamp the caliper brake disc.

[0020] Optionally, the caliper brake disc includes a mechanical spring;

[0021] The mechanical spring is used to provide clamping force.

[0022] Optional, including:

[0023] The passive clamp is mounted on the clamp brake disc.

[0024] Optionally, it also includes a motor mounted on the shaft that can rotate in the opposite direction;

[0025] The motor is used to recover the rope and oil.

[0026] Optional, also includes:

[0027] After the blocking device has finished working, manually reset the hydraulic lock and the passive clamp.

[0028] As can be seen from the above scheme, the arresting device disclosed in this application includes a rope reel, a turbine oil tank, and a caliper brake disc connected in sequence. A hydraulic lock, connected to the turbine oil tank and the passive clamp of the caliper brake disc via an oil circuit, is used. The turbine oil tank delivers oil to the hydraulic lock through the oil circuit. Opening the hydraulic lock activates the passive clamp to tighten the caliper brake disc. This application is designed with a transmission connection, which can stop the rope reel from rotating when the caliper brake disc brakes. The process of the turbine oil tank delivering oil to the hydraulic lock through the oil circuit and activating the passive clamp after opening the hydraulic lock provides a buffering resistance and buffering time for braking the rope reel. The resistance applied by the arresting device of this application ranges from the resistance of the hydraulic turbine oil tank to dynamic friction, with a small resistance change that can be accurately estimated. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the hydraulic buffer barrier device provided in this application;

[0031] Figure 2 This is a structural diagram of the barrier device provided in this application;

[0032] Figure 3 This is a schematic diagram of the operation of the blocking device provided in this application. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Arresting devices typically use arresting cables to apply resistance and prevent equipment moving at a certain speed from moving. The equipment being arrested can be high-speed objects such as aircraft or vehicles. The arresting cables are positioned perpendicular to the direction of movement of the equipment being arrested. After impacting the arresting cables, the equipment will continuously drag on them, slowing it down until it eventually comes to a stop.

[0035] However, because the time from contact between the barrier cable and the blocked equipment to the point where the movement stops is very short, it is difficult to accurately determine the time when the barrier device applies resistance to the barrier cable. Theoretically, tension should be applied to both ends of the barrier cable at the instant the blocked equipment contacts the barrier cable. However, because the blocked equipment moves at a high speed, it is impossible to obtain the real-time speed of the blocked equipment through human intervention or sensor monitoring.

[0036] To avoid a situation where the equipment being stopped impacts the arresting cable before resistance is applied, resistance is applied to the cable before contact. At the moment of impact, the arresting device may fail due to the immense impact, resulting in a failure to stop the equipment.

[0037] For example, see Figure 1 The schematic diagram of the hydraulic buffer barrier device provided in this application is shown in the figure:

[0038] This arresting gear, used on aircraft carriers, is a hydraulically-based system installed below the deck to arrest aircraft. It mainly consists of arresting cables, cable supports, lifting pulleys, deck-crossing pulleys, cable end buffer systems, guide pulleys, oil coolers, accumulators, expansion air cylinders, crossheads, control valve drive systems, main hydraulic cylinders, fixed-length runway control valves, fixed pulley blocks, and the cables themselves. The arresting gear pre-applies resistance to the arresting cables; at the moment of impact, the immense force of the impact can cause the arresting gear to malfunction, resulting in arresting failure.

[0039] Specific reasons for arresting failure include the high speed of the equipment being stopped, as mentioned above; the initial state of the arresting cable being perpendicular to the direction of the equipment's speed, at which point the resultant force of the tension in the arresting cable along the rope direction and the impact force perpendicular to the rope direction is at its maximum; the resistance on the arresting cable is pre-applied and is large, mainly achieved through the friction of the brake disc and clamps. After the resistance is applied, the brake disc remains stationary, providing static friction, at which point the resistance is at its maximum. When the equipment being stopped impacts the arresting cable, it causes the brake disc to rotate. Once the brake disc starts rotating, the resistance changes from static friction to dynamic friction. Dynamic friction is less than static friction, which may lead to arresting failure.

[0040] Furthermore, the stopping process of traditional barrier devices involves a transition from static friction to kinetic friction, resulting in a significant change in resistance that cannot be accurately estimated. Specifically, the pre-applied resistance can theoretically be deduced from the friction coefficient and deceleration; however, in practical applications, this cannot be accurately derived. The first reason is that the friction coefficient is only a theoretical value; the actual friction coefficient is related to surface condition, wear level, and ambient temperature and humidity, making accurate estimation impossible. The second reason is that the entire stopping process is relatively short, amplifying the impact of inaccurate friction coefficients. In conclusion, the impact change from static to kinetic friction is relatively large and cannot be accurately estimated.

[0041] To address the aforementioned problems, this application provides a blocking device, see [link to relevant documentation]. Figure 2 The structural diagram of the blocking device provided in this application is shown in the figure:

[0042] The device includes a cable reel and a clamp brake disc that are connected by a drive mechanism. Most importantly, it includes a turbine oil reservoir located between the cable reel and the clamp brake disc, and a hydraulic lock that is connected to the turbine oil reservoir and the clamp brake disc via an oil passage and is a passive clamp.

[0043] Correspondingly, see Figure 3 The schematic diagram of the blocking device provided in this application is shown in the figure:

[0044] The cable reel, turbine oil tank, and clamp brake disc are connected by a transmission system. When the arresting cable is impacted by the target object, the cable is stretched and elongated, causing the cable reel to rotate. This rotation simultaneously drives the turbine oil tank and clamp brake disc to rotate. The turbine oil tank consists of a turbine and a high-density oil with a viscosity much higher than water, making it a high-damping oil. The rotation of the cable reel drives the turbine, and the high-density oil provides resistance to the turbine, thus affecting the rotation of the cable reel. This provides a buffering effect at the moment of contact between the arresting cable and the target equipment, during the initial stretching of the cable. Specifically, the turbine oil tank provides a relatively small tension to the cable reel at the moment of contact, mitigating the impact of the target object on the arresting device. Besides using a turbine oil tank as a buffering device in this application, any device capable of achieving a buffering effect can be used.

[0045] It should be noted that the high-density oil can be selected based on the specific buffer deceleration requirements that the arresting device needs to achieve.

[0046] When the turbine rotates, it pushes the high-density oil in the turbine oil tank into the oil circuit, which can also be called a pipeline. The high-density oil is transported to the hydraulic lock through the oil circuit, and the hydraulic lock changes from a closed state to an open state. Then, the high-density oil enters the passive clamp through the oil circuit, triggering the clamping action of the passive clamp. It should be noted that the special feature of the clamp in this application is that it is "passive". The clamping action of the passive clamp is applied by an internal mechanical spring, without the need for an external power source. The clamp only needs an external action command. In this application, the action command comes from the hydraulic lock. After that, clamping can be performed without a power source or control.

[0047] Specifically, a simple, purely mechanical mechanism can be designed. The high-density oil in the hydraulic lock, also known as hydraulic oil, reaches the piston cylinder of the mechanism through the oil circuit. At this time, the piston moves, pushing the latch connected to the piston. Here, the latch acts as a stop for the action of the passive clamp. The latch action will successfully activate the clamp, triggering the clamping action of the passive clamp. After the passive clamp action, it will clamp on both sides of the clamp brake disc. At this time, the clamp brake disc will change from a rotating state to a stationary state. At the same time, it will apply a pre-set clamping force to the rope disc through the coupling, thereby generating a resistance greater than the hydraulic resistance of the turbine oil tank, causing the target object to decelerate and stop.

[0048] It should be noted that the blocking device provided in this application can automatically activate the blocking kinetic energy of the target object by the stretching action of the blocking cable. It has a buffer function, requires no manual or control system intervention, has high stability, and adopts a mechanical structure, which has high reliability.

[0049] In summary, the arresting device disclosed in this application includes a rope reel, a turbine oil reservoir, and a caliper brake disc connected in sequence. A hydraulic lock, connected to the turbine oil reservoir and the passive clamp of the caliper brake disc via an oil circuit, is used. The turbine oil reservoir delivers oil to the hydraulic lock through the oil circuit. Opening the hydraulic lock activates the passive clamp to tighten the caliper brake disc. This application's design, with its transmission connection, allows the rope reel to stop rotating when the caliper brake disc brakes. The process of the turbine oil reservoir delivering oil to the hydraulic lock and activating the passive clamp after opening the hydraulic lock provides a buffer of resistance and time for braking the rope reel. The resistance applied by the arresting device of this application ranges from the resistance of the hydraulic turbine oil reservoir to dynamic friction, with a small resistance variation that can be accurately estimated.

[0050] It should be noted that at the instant the arresting cable contacts the target object, even without the resistance of the caliper brake disc, the arresting device provided in this application can provide a small force that matches the tension speed of the arresting cable through the friction between the high-density oil in the turbine oil tank and the turbine. This buffers the subsequent large braking force provided by the caliper brake disc, preventing the arresting cable from being subjected to excessive tension and thus protecting the entire arresting device.

[0051] At the same time, the addition of a turbine oil tank to the arresting device allows the passive clamp to be activated by a hydraulic lock shortly after the turbine starts rotating, thereby applying greater resistance. The passive clamp is activated automatically throughout the process, without the need for a control system, making it timely and reliable.

[0052] The arresting device provided in this application is reusable: a reverse-rotating motor can be installed on the shaft to recover the rope and high-density oil. For hydraulic locks and passive clamps, manual reset is possible. If the mechanical latches mentioned above are used, resetting the passive clamps requires manual operation by the operator to reset the clamps and latches. The arresting device is generally not used continuously; in addition to recovering the oil using the motor, oil can also be replenished simultaneously.

[0053] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] For ease of description, the above systems or devices are described separately as various modules or units based on their functions. Of course, in implementing this application, the functions of each unit can be implemented in one or more software and / or hardware components.

[0055] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0056] Finally, it should be noted that in this document, relational terms such as first, second, third, and fourth are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A blocking device comprising a transmission-connected cable reel and a tongs brake disc, characterized in that, Also comprising: a turbine oil tank placed between the cable reel and the clamp brake, the turbine oil tank being in transmission connection with the cable reel and the clamp brake; a hydraulic lock in communication with the turbine oil tank and the passive clamp of the clamp brake through an oil path, the turbine oil tank delivering oil to the hydraulic lock through the oil path, the hydraulic lock being opened to activate the passive clamp to clamp the clamp brake.

2. The blocking device of claim 1, wherein Comprising: after the barrier cable is hit by the target barrier object, the barrier cable is stretched and elongated, and drives the transmission connection of the cable reel, the turbine oil tank and the clamp brake to rotate together; the rotating turbine oil tank provides a buffer resistance for the cable reel and opens the hydraulic lock; the opened hydraulic lock locks the clamp brake, so that the cable reel slows down and stops rotating.

3. The blocking device of claim 2, wherein, The rotating turbine oil tank provides a buffer resistance for the cable reel, comprising: The turbine oil tank includes a turbine and high-density oil, and the high-density oil provides resistance to the turbine to prevent the turbine from rotating, thereby providing a buffer resistance for the cable reel.

4. The blocking device of claim 3, wherein The opening of the hydraulic lock comprises: The turbine rotates to deliver the high-density oil into the hydraulic lock through the oil path to open the hydraulic lock.

5. The blocking device of claim 4, wherein, The high-density oil is an oil with a viscosity reaching a preset threshold.

6. The blocking device of claim 3, wherein The activation of the passive clamp comprises: The hydraulic lock inputs the high-density oil into the passive clamp through the oil path, pushes the buckle on the passive clamp, and thereby activates the passive clamp to clamp the clamp brake.

7. The blocking device of claim 1, wherein The clamp brake comprises a mechanical spring; The mechanical spring is used to provide clamping force.

8. The blocking device of claim 1, wherein, Comprising: The passive clamp is installed on the clamp brake.

9. The blocking device of claim 1, wherein, Also comprising a motor installed on the rotating shaft and capable of rotating in reverse; The motor is used to recover the cable and oil.

10. The blocking device of claim 1, wherein, Also comprising: After the barrier device stops working, manually reset the hydraulic lock and the passive clamp.

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