Stall protection arresting cable device and stall protection device for rubber-tyred trackless vehicle

Abstract

The present invention discloses a stall protection arresting cable device and a stall protection device for a trackless rubber-tyred vehicle, wherein the stall protection arresting cable device for a trackless rubber-tyred vehicle comprises: a main support, each of which is provided at a selected position on the ground on both sides of the tunnel; a swing arm, which corresponds to the main support one by one and is hinged on the corresponding main support; a driving mechanism, whose output is connected to the swing arm so that the swing arm stroke has a first stop point at the blocking position and a second stop point at the release position; an arresting cable, which is supported on the two swing arms to span a predetermined blocking tunnel ramp; a reset device, which is arranged at the main support to reset the swing arm to the first stop point; correspondingly, a cable storage groove is opened on the tunnel ground, so that when the swing arm is at the second stop point, the arresting cable is accommodated in the cable storage groove. Based on the fact that the present invention does not affect the normal passage of tunnel vehicles, it is not easy to cause the arresting cable to fail to be in place normally when a runaway car accident occurs.

Description

Technical Field

[0001] The invention relates to a stall protection arresting cable device for a trackless rubber-tyred vehicle, and also relates to a stall protection device for a trackless rubber-tyred vehicle equipped with the stall protection arresting cable device for a trackless rubber-tyred vehicle. Background Art

[0002] Chinese patent document CN204488767U and its priority document proposed for the first time in China to install a tail hook (also called a pull hook) on a rubber-tyred trackless vehicle for protection in the event of a runaway accident. Corresponding to the tail hook installed on the rubber-tyred trackless vehicle, a stall protection arresting cable for the rubber-tyred trackless vehicle is installed at a selected position in the lane. If a runaway accident occurs on the rubber-tyred trackless vehicle, the lowered tail hook can hook and pull the arresting cable, thereby achieving the purpose of forced deceleration.

[0003] In Chinese patent document CN204488767U, a schematic diagram of the installation method of the barrier cable is given, which includes a portion that is horizontally blocked at a predetermined height above the tunnel floor and a portion that is used to connect with the buffers located on both sides of the tunnel. Although it is a schematic diagram, it is also a method of use in some current applications. The inherent defect of this method is that when the rubber-tyred trackless vehicle passes normally, it will crush the barrier cable, causing damage to the barrier cable, especially when there are many debris on the tunnel floor, such as stones. If the stone happens to be supported under the crushed barrier cable part, it may cause greater damage to the barrier cable.

[0004] Chinese patent document CN205223912U discloses an arresting cable device for a stall protection system for a rubber-tyred trackless vehicle, in which the steel wire rope is a type of arresting cable, and the steel wire rope is connected to two energy absorbers for arresting and absorbing the energy of the rubber-tyred trackless vehicle. The portion of the steel wire rope lying across the lane is supported by two guide wheels to have a certain height, which is conducive to hooking the tail hook on the rubber-tyred trackless vehicle. On the one hand, the tensioning device maintains a relatively stable suspended state by tensioning the portion of the steel wire rope supported by the guide wheels, which is conducive to improving the success rate of arresting. The arrangement structure of this arresting cable is adapted to the stall protection device for a rubber-tyred trackless vehicle of the aforementioned Chinese patent document CN204488767U, and has the aforementioned defects.

[0005] The above-mentioned arrangement of the barrier rope is a relatively common arrangement of the barrier rope, which is recorded as the first implementation. In addition to the above-mentioned defects, the first implementation has the additional problem that, when, for example, the mine operates a forklift or a support transporter in the tunnel, it is very easy for the barrier rope to get caught, thereby causing unnecessary losses.

[0006] With the promotion and application of stall protection for rubber-tyred trackless vehicles, and the state's clarification that in addition to rail mining vehicles and other vehicles that need to be equipped with stall protection devices, stall protection devices for rubber-tyred trackless vehicles are also required. In the past two years, stall protection devices for rubber-tyred trackless vehicles have made great progress, and technicians in this field have therefore paid more attention to it. In response to the defects of the first implementation, a second implementation has emerged in the past two years. Specifically, the arresting cable uses an electromagnet skipping device, and a position for the arresting cable is set in the tunnel. A groove that crosses the tunnel ground is adaptively opened on the ground. The arresting cable is normally hidden in the groove below the tunnel ground to avoid being crushed by the rubber-tyred vehicle or hooked by other vehicles. When a rubber-tyred vehicle stalls, the electromagnet is energized, the counterweight of the skipping mechanism falls, and the arresting cable bounces up above the tunnel ground to stop the stalled rubber-tyred vehicle.

[0007] However, the second implementation also has some hidden dangers. Specifically, since stall accidents are not common, this also means that the arresting cable is hidden below the ground for a long time. In order to quickly retract, the groove width is much larger than the rope diameter of the wire rope. The tunnel is a place with a lot of debris. As vehicles enter and exit, the groove will gradually be filled with debris. Accordingly, the arresting cable hidden in the groove is easily stuck by debris, and once a signal abnormality occurs, the electromagnet may not work normally, causing the rope jumping failure and failure to stop the stalled rubber-wheeled vehicle. Summary of the invention

[0008] The object of the present invention is to provide a stall protection arresting cable device for a rubber-tyred trackless vehicle, which does not affect the normal passage of vehicles in the lane and is not prone to the problem that the arresting cable cannot be properly put in place when a runaway car accident occurs. The present invention also provides a runaway car protection device equipped with the stall protection arresting cable device for a rubber-tyred trackless vehicle.

[0009] In an embodiment of the present invention, a stall protection arresting cable device for a rubber-tyred trackless vehicle is provided, the basic structure of which comprises:

[0010] The main support is provided at a selected position on the ground on both sides of the roadway;

[0011] The swing arms correspond to the main supports one by one and are hinged on the corresponding main supports;

[0012] A driving mechanism, the output of which is connected to the swing arm so that the swing arm stroke has a first dead point at the blocking position and a second dead point at the releasing position;

[0013] The blocking rope is supported on two swing arms to span the predetermined blocking roadway ramp;

[0014] A reset device, arranged at the main support, to reset the swing arm to the first dead point;

[0015] Correspondingly, a cable storage groove is opened on the tunnel floor, so that when the swing arm is at the second dead point, the blocking cable is accommodated in the cable storage groove.

[0016] Optionally, the swing arm includes an active arm extending in the opposite direction, and the assembly formed by the active arm and the swing arm constitutes a lever with the main support as a hinge support;

[0017] The driving mechanism is connected to the active arm.

[0018] Optionally, the driving mechanism is a direct-acting mechanism, a seat end of the direct-acting mechanism is hinged to the secondary support, and an output end is hinged to the active arm.

[0019] Optionally, the direct-acting mechanism is a linear motor, an electric push rod, a hydraulic cylinder or a pneumatic cylinder.

[0020] Optionally, the secondary support located on the same side of the roadway is fixed to the same base plate as the primary support;

[0021] Correspondingly, the seat plate is fixedly installed on the side of the tunnel.

[0022] Optionally, the main support and the secondary support are located in side grooves opened on the sides of the tunnel.

[0023] Optionally, the active arm and the swing arm are parallel to each other, and the swing arm is offset to the side where the cable storage slot is located relative to the active arm;

[0024] In a direction perpendicular to the directions parallel to each other, there is a designed distance between the active arm and the swing arm.

[0025] Optionally, a cable buckle, a support ring or a consumable material connecting piece is provided at the end of the swing arm;

[0026] Accordingly, the arresting cable passes through the support ring and is supported;

[0027] The arresting cable is locked to the swing arm by means of a cable lock; or

[0028] The arresting cable is connected to the swing arm through a consumable connector.

[0029] Optionally, the cable buckle is a square hole buckle, and the board surface opposite to the direction of the oncoming vehicle is a cable release board;

[0030] There is a set locking force between the cable release plate and the rest of the square hole buckle.

[0031] Optionally, the main support has two support plates parallel to each other;

[0032] A support shaft is provided, and both ends of the support shaft are fixedly mounted on the side support plate or mounted on the two support plates through bearings.

[0033] Optionally, if the support shaft is fixedly arranged, the swing arm is mounted on the support shaft via a bearing;

[0034] Correspondingly, the reset device is a torsion spring which is sleeved on the support shaft and acts on the swing arm.

[0035] Optionally, a retractable cable device is provided, wherein the retractable cable of the retractable cable device is connected to one end of the blocking cable, so that the blocking cable can be tensioned by adjusting the retracted amount of the retractable cable;

[0036] Accordingly, the connection between the cable-releasing device and the arresting cable is a connection with a given cable-releasing force.

[0037] Optionally, the retractable rope device is a rope roller driven by a winding spring, and the retractable rope is wound around the rope roller; or

[0038] The retractable rope is a retractable device driven by a motor, and the rope roller of the retractable device is used to wind the retractable rope; adapted, a sensor for detecting the position of the swing arm or a component connected to the swing arm is provided at the main support.

[0039] Optionally, the cable-retracting and -releasing device is arranged at the upper part of one side of the tunnel, and the cable-retracting and -releasing device is wound around a fixed pulley to a connection position with the blocking cable.

[0040] In an embodiment of the present invention, there is also provided a stall protection device equipped with the stall protection arresting cable device for a rubber-tyred trackless vehicle, wherein an energy absorber is installed at positions matching the arresting cables on both sides of the roadway;

[0041] Correspondingly, the rope extending from the energy absorber is fixedly connected to the corresponding end of the arresting cable.

[0042] In the embodiment of the present invention, the blocking cable is in a blocking state under normal conditions, which is recorded as a normally open state. When the vehicle passes normally, the driving mechanism drives the swing arm to drive the blocking cable to be lowered to the cable storage slot, which does not affect the normal passage of the vehicle. Considering that the time when debris enters the cable storage slot is mostly when the vehicle passes, and each time the vehicle passes, the amount of debris entering the cable storage slot is much less than that of long-term accumulation, and the blocking cable is located in the cable storage slot at this time, when the vehicle passes, the blocking cable is reset, and the debris brought into the cable storage slot when the vehicle passes can be ejected. At the same time, due to the presence of a reset device to maintain the normally open state, or even if the driving mechanism fails, the only effect produced is that the blocking cable cannot be collected into the cable storage slot. The state of failure of this device is equivalent to a conventional blocking cable that is always in a blocking state. Its position is slightly higher than the ground, which has little effect on the normal passage of the vehicle, but can maintain the blocking state, thereby ensuring relative reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the front view structure of the barrier cable opening and closing mechanism in an embodiment in an open state.

[0044] Figure 2 Corresponding to Figure 1 Schematic diagram of the top cross-section structure.

[0045] Figure 3 Schematic diagram of the installation structure of the barrier cable opening and closing mechanism on the side of the tunnel in one embodiment (closed state).

[0046] Figure 4 Corresponding to Figure 1 Schematic diagram of the top view structure (closed state).

[0047] Figure 5 Schematic diagram of the installation structure of the barrier cable opening and closing mechanism on the side of the tunnel in one embodiment (open state).

[0048] Figure 6 Schematic diagram of the main structure of the stall protection arresting cable device for rubber-tyred trackless vehicles in one embodiment (open state).

[0049] Figure 7 Schematic diagram of the main structure of the stall protection arresting cable device for a rubber-tyred trackless vehicle in one embodiment (closed state).

[0050] In the figure: 1. seat plate, 2. main support, 3. hinge shaft, 4. support shaft, 5. linkage arm, 6. blocking cable, 7. square hole buckle, 8. screw, 9. baffle, 10. cylinder, 11. hinge shaft, 12. secondary support, 13. torsion spring, 14. bearing, 15. bushing, 16. reset sensor, 17. side groove, 18. cable storage groove, 19. tunnel floor, 20. tunnel side wall, 21. tunnel top, 22. electric retractor, 23. fixed pulley, 24. retractor and release cable, 25. fixed pulley. DETAILED DESCRIPTION

[0051] Regarding the stall protection arresting cable device for rubber-tyred trackless vehicles involved in the present invention, the following contents need to be clarified first:

[0052] 1. Normally open, no matter in what field, means that when no external force intervenes, the controlled component in the equipment, device or mechanism is in the open state. In other words, the "control" of the controlled device fails and cannot change the normally open state. The purpose of "control" is to achieve, for example, dynamic closing, so that the "open" state is reversed; in the embodiment of the present invention, it means closing the arresting cable device, or storing the arresting cable 6 in the cable storage tank 18, so that the rubber-tyred trackless vehicle is not blocked by the arresting cable 6 when passing through the position where the stall protection arresting device for the rubber-tyred trackless vehicle is provided.

[0053] 2. The arresting cable device for the stall protection of the rubber-tyred trackless vehicle is the main component of the stall protection device of the rubber-tyred trackless vehicle. It is mainly used for tensioning the cable. After the rubber-tyred trackless vehicle is blocked, for example, it is hooked by the tail hook on the rubber-tyred trackless vehicle, and the arresting cable 6 will be disengaged from the stall protection device of the rubber-tyred trackless vehicle, rather than being rigidly intercepted. Accordingly, the stall protection device of the rubber-tyred trackless vehicle is equipped with two energy absorbers, one of which is connected to each end of the arresting cable 6. The disengaged arresting cable 6 is connected to the rope from the energy absorber through, for example, a wire rope clamp, which then generates energy consumption deceleration for the rubber-tyred trackless vehicle.

[0054] 3. As described in the background technology section, the blocking cable 6 installed in the lane in the early stage is in the working state in its fixed state. Since its height is not high, the rubber-tyred trackless vehicle can directly press over it without causing too much impact on the passage of the rubber-tyred trackless vehicle. In the embodiment of the present invention, as described in the first content, even if the "control" fails, the passage of the rubber-tyred trackless vehicle can at most be restored to the fixed state of the traditional blocking cable 6, which also has the stall protection function. Relatively speaking, the blocking state does not require a special mechanism to assist, and is a state that can be fixedly set. Therefore, the failure described is actually just the failure of the "control".

[0055] It should be noted that, with respect to the third item, although the movable part in the embodiment of the present invention is not limited to "control" itself, it is valuable to be normally open simply in terms of the blocking state.

[0056] 4. The opportunity for debris to enter the cable storage groove 18 mostly occurs when it is in the closed state. That is, in order to reduce the impact on the normal passage of the rubber-tyred trackless vehicle, the blocking cable 6 needs to fall into the cable storage groove 18 before the trackless rubber-tyred vehicle arrives. The amount of debris rolled into the cable storage groove 18 by the rolling of the rubber wheel is not large compared with long-term accumulation, and it will not be compacted by repeated rolling. Therefore, when the blocking cable 6 is reset after the trackless rubber-tyred vehicle passes, the debris can be easily pushed out.

[0057] It should be noted that the arrival timing of rubber-tyred trackless vehicles is uniformly arranged at the mine and incorporated into the module of the coal mine safety system.

[0058] 5. The stall protection arresting cable device for rubber-tyred trackless vehicles is usually arranged at the ramp of the inclined shaft tunnel, and the arresting cable 6 is correspondingly arranged horizontally.

[0059] 6. Although the ramp is not a road surface defined by a horizontal or vertical state, it does not affect the understanding of up and down in the art. In particular, in the illustrated content of the embodiments of the present invention, the inclined road surface 19 is represented in a horizontal state for the convenience of observation, which does not affect the normal understanding of those skilled in the art.

[0060] 7. It should be noted that the maintenance of the sports car protection device is at least periodic, and even if a small amount of debris is retained in the rope storage groove 18, it is easier for workers to clean it. In particular, the normal state of the blocking cable 6 is the normally open state, and the rope storage groove 18 is not covered.

[0061] In the embodiments of the present invention, unless otherwise specified, term names are mainly used to distinguish different technical features without limiting their literal meaning or scope of connotation.

[0062] See the instruction manual Figures 1 to 7 An example of a stall protection arresting cable device for a rubber-tyred trackless vehicle has a basic structure comprising a main support 2, a linkage arm 5, a cylinder 10, an arresting cable 6 and a torsion spring 13, and is adapted to the closed state of the stall protection arresting cable device for the rubber-tyred trackless vehicle, and has a cable storage groove 18 opened on the tunnel ground 19 at a position determined according to the rotation of the linkage arm 5 to the tunnel ground.

[0063] The main support 2 is mainly used to construct a fixed hinge support, while the linkage arm 5 is a composite arm. The linkage arm 5 is formed into a lever mechanism with the main support 2 as the hinge fulcrum. The active part is hereinafter referred to as the active arm, and the driven part is hereinafter referred to as the swing arm. It should be noted that the lever in the lever mechanism is the linkage arm 5 in the embodiment of the present invention, and the master and slave parts are separated by the hinge fulcrum. The cylinder 10 is the part that pushes the active arm to actuate the lever mechanism. The blocking cable 6 is installed on the driven arm, and the lifting action is generated based on the rotation of the linkage arm 5, and the lifting action generates the lifting stroke. In the mechanical field, for components with a fixed stroke, two stop points are defined to limit the working stroke of the component. When the linkage arm 5 is at one stop point, the blocking cable 6 is in a blocking state; when it is at the other stop point, the blocking cable 6 is in a state of being stored in the cable storage slot 18.

[0064] Regarding the main support 2, it needs to match the predetermined blocking position, and the position of the main support 2 is determined according to the position of the blocking cable 6 to be arranged, and it is necessary to simultaneously support the blocking cable 6 at the selected position as both ends of the blocking part, with one set at each end.

[0065] exist Figure 3 In the figure, the main support 2 is arranged in the side groove 17. It should be understood that since the main support 2 is located at the side, it does not affect the passage of the rubber-tyred trackless vehicle and can be directly installed on the roadway ground 19. For example, for the lever mechanism, it is itself designed based on the slewing pair. The position of the main support 2 is relatively high and has no effect on the slewing pair, but has a slight effect on the flexibility of determining the two stop points of the lever.

[0066] It should be noted that the lever mechanism is only an illustrative structure, and the simple use of a swing arm can still satisfy the control of the working stroke of the blocking cable 6 and its supporting components. For example, a swing cylinder is used to drive the swing arm, and there is no need to assemble an active arm.

[0067] Relatively speaking, when the main support 2 used as a lever hinge support is installed at a relatively low position, it is beneficial to the stroke design of the linkage arm 5 and the position installation of the cylinder 10, for example.

[0068] exist Figure 3 and Figure 4 In the structure shown, a side groove 17 is opened on the tunnel floor 19 on the inner side of the tunnel side wall 20, and the seat plate 1 shown in the figure, together with the main support 2 and the secondary support 12 installed on the seat plate 1, are accommodated in the side groove 17. The position of the main support 2 determines the movement mode of the linkage arm 5, and thereby determines the position of the storage cable groove 18.

[0069] Accordingly, the swing arm is one of the necessary components, which is used to support the blocking cable 6, and also needs to correspond to the main support 2 one by one, and be hinged on the corresponding main support 2, and have a winding structure. Figure 1 The support shaft 4 is shown with a degree of freedom of rotation.

[0070] Provide as Figure 1 The cylinder 10 shown is used as a driving mechanism for driving the swing arm to rotate so that the swing arm has a predetermined working stroke. Accordingly, the cylinder 10 is indirectly connected to the swing arm through the active arm so that the swing arm stroke has a first dead point at the blocking position and a second dead point at the releasing position.

[0071] It should be noted that Figure 1 The structure between the cylinder 10 and the linkage arm 5 shown is a choice when the linkage arm 5 has an active arm. If there is only a swing arm, a triangle mechanism can be directly constructed between the cylinder 10 and the swing arm. The push rod of the cylinder 10 is hinged on the swing arm, and the cylinder body of the cylinder 10 is hinged on the frame, such as the secondary support 12.

[0072] The drive of the swing arm depends on its motion form, which is rotation, specifically swinging within the designed stroke. For this reason, the adapted driving mechanism can be a device that directly outputs swinging, such as a swing cylinder, which can be a pneumatic swing cylinder or a hydraulic swing cylinder. A device that directly outputs rotation, such as an electric motor, a pneumatic motor or a hydraulic motor, can also be selected.

[0073] Figure 1The cylinder 10 shown in the figure is a typical direct-acting component. The characteristics of the cylinder 10 are fast response speed. Even if leakage occurs, no pollution will be caused. Instead, a hydraulic cylinder has a slow response speed, but is relatively stable, and has a high power density compared to the cylinder 10. The disadvantage is that if leakage occurs, the hydraulic oil will cause some pollution. Those skilled in the art can select a suitable direct-acting component based on this.

[0074] As a further alternative, the cylinder 10 may be directly replaced by a linear motor.

[0075] The arresting cable 6 is supported on two swing arms and can be connected or simply supported. When connected, the connection strength should be as small as possible while meeting the lifting and lowering strength of the arresting cable 6, so that when arresting the rubber-tyred trackless vehicle, no serious damage will be caused to the swing arm and its driving mechanism.

[0076] It is understandable that the blocking cable 6 needs to cross the predetermined blocking lane ramp to protect the rubber-tyred trackless vehicle running on the corresponding lane ramp.

[0077] Regarding the selection of the arresting cable 6, currently, mining steel wire ropes are mostly used, and in some implementations, steel strands can also be used. With the development of technology, the strength of organic ropes is gradually approaching that of steel wire ropes, or even surpassing it, such as high-strength nylon parachute ropes. Therefore, in some implementations, organic ropes with equivalent strength can also be selected.

[0078] In addition, as mentioned above, based on the concept of the present invention, in the absence of external force intervention, the stall protection arresting cable device of the rubber-tyred trackless vehicle should be able to maintain a normally open state. For this purpose, a reset device is provided and arranged at the main support 2 to reset the swing arm to the first stop point, such as Figure 2 The torsion spring 13 shown in FIG.

[0079] It should be noted that in the field of mechanics, devices for resetting are generally implemented by devices that do not require external power intervention, and are mostly passive. Generally, the target component can be reset by its own gravity, bearing pressure, parts or devices with deformation recovery force, etc. However, in the embodiments of the present invention, the active type, that is, the reset method with the help of an external power machine, is not excluded.

[0080] from Figure 3 It can be seen that the width of the cable storage groove 18 is not too large relative to the diameter of the barrier cable 6. Generally speaking, the cable storage groove 18 can just allow the barrier cable 6 to be inserted, and the groove edge has a rounded or chamfered shape to facilitate the introduction of the barrier cable 6.

[0081] As a further consideration, such as the impact of factors such as assembly accuracy and working conditions on the size of components, a margin is added to the size of the cable storage trough 18 as described in the previous paragraph, whereby technicians in this field can easily determine the appropriate size of the cable storage trough 18.

[0082] Correspondingly, when the swing arm is at the second dead point, the arresting cable 6 is accommodated in the cable storage groove 18 .

[0083] In some embodiments, the swing arm may constitute the movable member of the triangular mechanism, and Figure 1 and 3 In the structure shown, the swing arm constitutes the driven part of the lever in a lever mechanism. Relatively speaking, the active part of the lever, namely the active arm, is located on the side of the support shaft 4 opposite to the driven part. If the swing arm extends from the support shaft 4 in one direction, the active arm extends in the opposite direction.

[0084] It should be understood that the opposite direction does not mean that two components or structures with opposite extension directions are located on a straight line, just as south and north are not absolutely opposite to each other on the same straight line.

[0085] If the included middle section is used as the reference plane, the active arm and the swing arm on the linkage arm 5 are substantially parallel to each other, and a bend is formed at the position with the support shaft hole. With this structure, it is easy to construct a structure in which, for example, the torque applied to the active arm by the cylinder 10 is always relatively large.

[0086] Specifically, in the directions parallel to and perpendicular to each other, the swing arm is offset to the side where the cable storage slot 18 is located relative to the active arm.

[0087] Furthermore, in a direction perpendicular to the mutually parallel direction, there is a design distance between the active arm and the swing arm. The design distance here takes into account the aforementioned problem of the magnitude of the torque applied by, for example, the cylinder 10. It is obvious that the design distance should not be too large, otherwise it will cause the side groove 17 to be too deep.

[0088] Furthermore, the assembly of the active arm and the swing arm forms a lever, which is Figure 1 The linkage arm 5 shown in the figure has the main support 2 as the hinge support, and the axis adapted to the hinge support is Figure 1 The support shaft 4 shown in FIG.

[0089] Accordingly, when an active arm is provided, the driving mechanism should be connected to the active arm.

[0090] The selection of direct-acting components is discussed in the foregoing content. Direct-acting components usually include direct-acting mechanisms. The direct-acting mechanisms may include a power machine, such as a linear motor, or may be equipped with a power machine and introduced through the prime mover of the direct-acting mechanism.

[0091] In a preferred embodiment, a gas cylinder 10 or a hydraulic cylinder is used to reduce the use of electrical equipment, thereby reducing explosion-proof points. At the same time, the gas cylinder 10 has a fast response speed, and the medium used is air, which is pollution-free. Although the noise is relatively large, it can be ignored in the environment of factories and mines.

[0092] The air cylinder 10 and the hydraulic cylinder are typical components that can be understood as a moving pair as a whole, and have a push rod and a cylinder barrel. The cylinder barrel can have a reamed hole, so that its two ends, specifically the head end of the push rod and the tail end of the cylinder barrel, can be assembled in a hinged manner.

[0093] Accordingly, the push rod of the cylinder 10 is hinged to the active arm, and the rear end of the cylinder is hinged to the active arm. Figure 1 The secondary support 12 shown in FIG. 1 is hinged.

[0094] Figure 1 The main support 2 and the secondary support 12 are typical fixed hinge supports. The main support 2 and the secondary support 12 can be fixed independently, and can be fixed at selected positions on the tunnel ground 19 by, for example, anchoring.

[0095] Relatively speaking, when the main support 2 and the secondary support 12 are fixed separately in a construction environment and a site with low construction accuracy, it is difficult to ensure the position accuracy between the main support 2 and the secondary support 12. Figure 1 In the structure shown, the main support 2 and the secondary support 12 have a common seat plate 1. The main support 2 and the secondary support 12 can be fixed on the seat plate 1 at the factory stage. The fixation can be achieved by a detachable connection, such as a bolt connection, or by an irremovable connection, such as a riveting or welding method.

[0096] The seat plate 1 can be installed on site. Specifically, anchor holes are pre-opened on the seat plate 1, concrete is pre-cast on site to form a fixed body, anchors are pre-embedded in the fixed body, and the seat plate 1 is installed by means of anchors and nuts.

[0097] In addition, from the perspective of position, the seat plate 1 is located at the side of the lane, which is not easily directly crushed or hit by the rubber-tyred trackless vehicles passing by.

[0098] As for the structure between the swing arm and the arresting cable 6, as mentioned above, in a preferred embodiment, when a runaway car accident occurs, the tail hook on the rubber-tyred trackless vehicle should be able to hook the arresting cable 6, and then the energy absorbers connected to the two ends of the arresting cable 6 start to work, consuming energy and slowing down the rubber-tyred trackless vehicle. The swing arm and other facilities should still be able to continue to be used after an arrest, so the structure that causes less damage to the swing arm during the arrest, that is, the structure between the swing arm and the arresting cable 6, should be considered.

[0099] Specifically, the end of the swing arm is provided with a cable buckle, a support ring or a consumable connecting piece, wherein the cable buckle is mainly used to fix the blocking cable 6 on the swing arm, and a wire rope clamp can be used, for example. The support ring is equivalent to a flexible joint, and the blocking cables pass through the support ring, and the blocking cable 6 is tensioned by an energy absorber or other independently arranged tensioning device. The consumable connecting piece can be, for example, an iron wire, and the blocking cable is tied to the end of the swing arm with the iron wire. After the blocking cable 6 is hooked by the tail hook, the iron wire is broken, and after the blocking cable 6 is reactivated, it can be tied with a wire rope again.

[0100] If the connection between the swing arm and the arresting cable 6 is called a light connection, the connection force of the light connection should be smaller than the destructive force of the swing arm and its supporting structure, and should also be able to reliably support the arresting cable 6 to ensure the normal lifting and lowering of the arresting cable 6.

[0101] It should be noted that the support ring and the cable buckle can be considered the same in some cases, such as the support ring also has the function of clamping, for example, the blocking cable 6, and itself has the function of the cable buckle. In particular, in some implementations, the cable buckle also considers another factor, that is, the part used to constrain the target part can be opened, and it is called a cable buckle based on the openability, and it is not limited to be used as a ring at this time.

[0102] exist Figure 1 In the structure shown, the linkage arm 5 is Figure 1 There is a square hole buckle 7 at the upper end of the clamp, whose cross-sectional area is much larger than the cross-sectional area required for the clamp, and can be understood as a ring in essence, but see Figure 3 , Figure 3 The middle arrow indicates the downward direction of the rubber-tyred trackless vehicle. When the arresting cable 6 is hooked by the tail hook and a certain force is applied to the square hole buckle 7, the arresting cable 6 should be able to escape from the square hole buckle 7. For this reason, the board surface of the square hole buckle 7 opposite to the direction of the vehicle is the cable release board. When the arresting cable 6 is pulled by the hook and impacts the cable release board, the cable release board should smoothly escape from the obstruction of the arresting cable 6.

[0103] Accordingly, there is a set locking force between the cable release plate and the rest of the square hole buckle 7. Specifically, Figure 1 In the embodiment, the square hole buckle 7 is formed by bending a strip plate. Figure 1 The lower panel of the square hole buckle 7 can be welded to the linkage arm 5. Figure 1 At the upper end, the cable-releasing plate is the right panel of the square hole buckle 7, which can be detached from the upper panel of the square hole buckle 7 or connected with screws. The unlocking force depends on the connecting force of the screws and the stiffness between the cable-releasing plate and the bottom panel. Technicians in this field can easily design the stiffness of the square hole buckle 7 based on this.

[0104] In order to improve the reliability of support, the support shaft 4 is supported at both ends. Accordingly, the main support 2 has two support plates parallel to each other. The two ends of the support shaft 4 are connected to the support plates at the corresponding ends. The connection can be a fixed connection or a rotating connection, and a fixed connection is preferred.

[0105] If a rotating connection is adopted, the support shaft 4 needs to be installed on the support plate through a bearing, and the support shaft 4 constitutes a rotating shaft; if a fixed connection is adopted, the support shaft 4 constitutes a fixed shaft. Correspondingly, if the support shaft 4 constitutes a rotating shaft, the support shaft and the linkage arm 5 are fixedly connected; if the support shaft 4 constitutes a fixed shaft, the linkage arm 5 and the support shaft 4 need to be assembled using, for example, a bearing 14.

[0106] As mentioned above, the reset device can be a torsion spring 13. Figure 2 In the structure shown, the torsion spring 13 is sleeved on the support shaft 4 and acts on the swing arm. Generally, the torsion spring also has two force arms, one of which is supported on a relatively stationary component, such as a fixed support shaft 3, a support plate or other relatively stationary component, and the other force arm is directly connected to the swing arm.

[0107] For one swing arm, two torsion springs 13 may be provided, one on each side of the swing arm.

[0108] exist Figure 2 In the structure shown, a torsion spring 13 is provided for a swing arm. At the same time, in order to make the swing arm roughly located in the middle of the support shaft 4, a sleeve 15 arranged opposite to the torsion spring 13 is supported on the other side of the linkage arm.

[0109] As mentioned above, the arresting cable 6 needs to be tensioned, and the tensioning can be performed by an independent tensioning device or by a fixed connection between the arresting cable 6 and the linkage arm 5. In some embodiments, a retracting cable device is provided, and the retracting cable 24 of the retracting cable device is connected to one end of the arresting cable 6, so that the arresting cable 6 can be tensioned by adjusting the retracting amount of the retracting cable 24.

[0110] The tension of the arresting cable 6 depends on the retraction and release of the retracting and releasing cable 24 , and the retraction and release can be determined based on the tension to which the retracting and releasing cable 24 is subjected.

[0111] Accordingly, the connection between the cable-releasing device and the arresting cable 6 is a connection with a given cable-releasing force.

[0112] In some embodiments, the retractable rope device is a rope roller driven by a winding spring, and the retractable rope is wound around the rope roller, which can achieve automatic tightening.

[0113] In other embodiments, the retractable cable 24 is a motor-driven retractable device, such as Figure 6The electric retractor 22 shown in the figure, correspondingly, the rope roller equipped with the retractor is used to wind the retractor rope 24; adapted, at the main support 2, a sensor for detecting the position of the swing arm or a component connected to the swing arm as a whole is provided, such as Figure 2 The reset sensor 16 is shown in FIG.

[0114] exist Figure 6 In the structure shown, the electric retractor 22 is arranged at the upper part of one side of the tunnel, and the retractor rope 24 is wound around the fixed pulley to the connection position with the blocking rope 6.

Claims

1. A stall protection arresting cable device for a rubber-tyred trackless vehicle, characterized in that: include: The main support is provided at a selected position on the ground on both sides of the roadway; The swing arms correspond to the main supports one by one and are hinged on the corresponding main supports; A driving mechanism, the output of which is connected to the swing arm so that the swing arm stroke has a first dead point at the blocking position and a second dead point at the releasing position; The blocking rope is supported on two swing arms to span the predetermined blocking roadway ramp; A reset device, arranged at the main support, to reset the swing arm to the first dead point; Accordingly, a cable storage groove is provided on the tunnel floor, so that when the swing arm is at the second dead point, the blocking cable is accommodated in the cable storage groove; The swing arm comprises an active arm extending in the opposite direction, and the assembly formed by the active arm and the swing arm constitutes a lever with the main support as a hinge support; The driving mechanism is connected to the active arm; A cable buckle, a support ring or a consumable material connecting piece is provided at the end of the swing arm; Accordingly, the arresting cable passes through the support ring and is supported; The arresting cable is locked to the swing arm by means of a cable lock; or The arresting cable is connected to the swing arm through a consumable connector.

2. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 1 is characterized in that: The driving mechanism is a direct-acting mechanism, the seat end of which is hinged on the secondary support, and the output end of which is hinged to the active arm.

3. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 2 is characterized in that: The direct-acting mechanism is a linear motor, an electric push rod, a hydraulic cylinder or a pneumatic cylinder.

4. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 2 or 3, characterized in that: The secondary support located on the same side of the roadway is fixed on the same base plate as the main support; Correspondingly, the seat plate is fixedly installed on the side of the tunnel.

5. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 4 is characterized in that: The main support and the secondary support are located in the side grooves opened on the side of the tunnel.

6. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 1, characterized in that: The active arm and the swing arm are parallel to each other, and the swing arm is offset to the side where the cable storage slot is located relative to the active arm; In a direction perpendicular to the directions parallel to each other, there is a designed distance between the active arm and the swing arm.

7. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 1, characterized in that: The cable buckle is a square hole buckle, and the board surface opposite to the direction of the oncoming vehicle is the cable release board; There is a set locking force between the cable release plate and the rest of the square hole buckle.

8. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 1, characterized in that: The main support has two support plates parallel to each other; A support shaft is provided, and both ends of the support shaft are fixedly mounted on the side support plate or mounted on the two support plates through bearings.

9. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 8, characterized in that: If the support shaft is fixed, the swing arm is mounted on the support shaft through a bearing; Correspondingly, the reset device is a torsion spring which is sleeved on the support shaft and acts on the swing arm.

10. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 1, characterized in that: A retractable cable device is provided, wherein the retractable cable of the retractable cable device is connected to one end of the arresting cable, so that the arresting cable can be tensioned by adjusting the retracted amount of the retractable cable; Accordingly, the connection between the cable-releasing device and the arresting cable is a connection with a given cable-releasing force.

11. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 10, characterized in that: The retractable rope device is a rope roller driven by a winding spring, and the retractable rope is wound around the rope roller; or The retractable rope is a retractable device driven by a motor, and the rope roller of the retractable device is used to wind the retractable rope; adapted, a sensor for detecting the position of the swing arm or a component connected to the swing arm is provided at the main support.

12. The stall protection arresting cable device for rubber-tyred trackless vehicles according to claim 11, characterized in that: The cable-retracting and -releasing device is arranged at the upper part of one side of the tunnel, and the cable-retracting and -releasing device is wound around the fixed pulley to the connection position with the blocking cable.

13. A stall protection device equipped with a stall protection arresting cable device for a rubber-tyred trackless vehicle as claimed in any one of claims 1 to 12, characterized in that: An energy absorber is installed at each position on both sides of the tunnel that matches the blocking cable; Correspondingly, the rope extending from the energy absorber is fixedly connected to the corresponding end of the arresting cable.

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