A kind of slow loading steel belt longitudinal deformation car protection energy-absorbing device

Abstract

The application provides a slow-loading steel belt longitudinal deformation sports car protection energy-absorbing device, which comprises a base, the base extends along a first direction, and arrayed mounting holes are arranged on both sides of the base for external fixed connection; a steel belt roll storage box is fixedly installed at one end of the base, and a disc-shaped steel belt is arranged in the steel belt roll storage box; a loading mechanism is located at the end of the base away from the steel belt roll storage box, and comprises a mounting frame fixedly installed on the base and a sliding frame slidingly installed on the mounting frame; the output end of the steel belt passes through the mounting frame and extends to the side of the mounting frame away from the steel belt roll storage box; matching concave wheels and convex wheels are arranged on both sides of the sliding frame on the sliding frame for loading with the steel belt; and a limiting portion is arranged on the mounting frame along the sliding direction of the sliding frame for adjusting the spacing between the concave wheels and the convex wheels. By passing the steel belt through the loading mechanism, the steel belt can be deformed to different degrees with the change of the spacing between the concave wheels and the convex wheels, thereby generating different resistances.

Description

Technical Field

[0001] This invention belongs to the field of mining equipment technology, specifically relating to a runaway protection energy absorption device for slow-loaded steel belt longitudinal deformation. Background Technology

[0002] Runaway vehicle protection devices are crucial in mine transportation, their core function being to achieve buffer braking by effectively absorbing the kinetic energy of the runaway vehicle. In existing technologies, steel belt-type buffer devices are widely used due to their ability to absorb energy through the plastic deformation of metal. For example, authorized patent CN109263682B discloses a disc-type steel belt plastic deformation buffer braking device, which uses three or more pressure roller groups to laterally bend and deform the steel belt, and gradually loads it through a gradient section at the front end of the steel belt. Although this solution solves some of the problem of unstable braking force in friction-type devices, it still relies on the gradual change in the shape of the front end of the steel belt to achieve loading. The gradient section at the front end is a weak point of the steel belt, and sudden changes in braking force in the initial stage may lead to the risk of the steel belt breaking due to impact. Therefore, these problems urgently need to be addressed. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, a sports car protection energy absorption device with slow loading of longitudinal deformation of steel belt is provided.

[0004] This application provides a sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belts, including... The base extends along a first direction and has an array of mounting holes on both sides for fixed connection with the outside. A steel strip coil storage box, which is fixedly installed at one end of the base and has coiled steel strip inside; A loading mechanism, located at one end of the base away from the steel strip coil storage box, includes a mounting frame fixedly installed on the base and a slide mounted slidably on the mounting frame; The output end of the steel strip passes through the mounting frame and extends to the side of the mounting frame away from the steel strip coil storage box; The carriage is provided with matching concave wheels and cams on both sides of the steel belt for loading the steel belt; The mounting bracket is provided with a limiting part along the sliding direction of the slide, which is used to adjust the distance between the concave wheel and the cam.

[0005] Furthermore, The mounting bracket includes parallel side plates and a top plate connected between the two side plates; The side plate extends along the first direction and is perpendicular to the base; The base and the side plate are fixedly connected or integrally formed; The top plate and the side plate are fixedly connected or integrally formed.

[0006] Furthermore, The carriage includes parallel mounting plates and a sliding plate for connecting the two mounting plates; The number of the sliding plates includes two, which are parallel to each other and are aligned with the base; The two slide plates are located at both ends of the mounting plate in the vertical direction, and their width matches the distance between the two side plates, in order to limit the sliding direction of the carriage; The distance between the outer sides of the two mounting plates is relatively smaller than the distance between the two side plates, for mounting the concave wheel and cam.

[0007] Furthermore, The concave wheel is connected to the carriage via a fixed shaft; Both ends of the fixed shaft pass through the corresponding mounting plates and are rotatably connected to the mounting plates; The two mounting plates are respectively provided with matching bearing seats on the side that is far apart from each other, corresponding to the fixed shaft.

[0008] Furthermore, The cam is connected to the carriage via a movable shaft; The two ends of the movable shaft pass through the corresponding two mounting plates respectively; The rotating plate is provided with matching strip-shaped holes corresponding to the movable shaft; The extension direction of the strip hole is perpendicular to the base, and it is used for the cam to move up and down.

[0009] Furthermore, The limiting part is disposed on the side plate and includes a guide rail; The guide rails include two, which are respectively installed on the side of the two side plates that are close to each other; The guide rail is fitted and fixedly installed with the side plate, and the top is provided with an inclined surface extending along the first direction to support the movable shaft.

[0010] Furthermore, The concave wheel and the cam are arranged vertically between each other; The cam is located below the concave wheel and is used to press the steel strip into the concave wheel, generating resistance through deformation.

[0011] Furthermore, A reinforcing rib is also provided between the base and the mounting frame to improve the connection strength between the mounting frame and the base; The number of reinforcing ribs includes multiple ribs, which are perpendicular to the base and evenly distributed along the first direction.

[0012] Furthermore, The interior of the steel strip storage box is equipped with an installation shaft corresponding to the steel strip. The mounting shaft is rotatably connected to the steel strip coil storage box, which is used to allow the steel strip to rotate and extend.

[0013] Furthermore, The output end of the steel strip is also equipped with a connecting buckle for docking with an external interception mechanism.

[0014] The advantages and positive effects of this application are: This technical solution involves passing a steel belt through a loading mechanism. As the distance between the concave wheel and the cam changes, the steel belt can deform to different degrees, thus generating different resistances. The distance between the concave wheel and the cam is determined by their positional relationship with the limiting part. Initially, the concave wheel and the cam simply clamp the steel belt in a conventional manner without causing deformation. However, when the steel belt is subjected to force and moves, the concave wheel and the cam also move due to friction, causing the distance between them to decrease and the steel belt to gradually deform. During this process, the deformation of the steel belt gradually changes with the distance between the concave wheel and the cam, thus gradually increasing the external resistance. This effectively achieves gradual loading while ensuring the overall strength of the steel belt. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the structure of the sports car protection energy absorption device for slow-load steel belt longitudinal deformation provided in the embodiments of this application; Figure 2 This is a schematic diagram of the loading mechanism of the sports car protection energy absorption device for slow-loading steel belt longitudinal deformation provided in the embodiments of this application.

[0016] The text labels in the figure are as follows: 100-base; 110-reinforcing rib; 200-steel strip coil storage box; 210-steel strip; 211-connecting buckle; 300-mounting bracket; 310-slide carriage; 320-concave wheel; 321-fixed shaft; 330-cam; 331-moving shaft; 340-guide rail. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] As mentioned in the background section, this application proposes a sports car protection energy-absorbing device for slow-loading longitudinal deformation of steel strip, comprising a base 100 extending along a first direction, with arrayed mounting holes on both sides for fixed connection to an external surface; a steel strip coil storage box 200 fixedly installed at one end of the base 100, containing coiled steel strip 210; and a loading mechanism located at the end of the base 100 away from the steel strip coil storage box 200, including components fixedly installed on the base. The mounting bracket 300 on the 100 and the slide 310 slidably mounted on the mounting bracket 300; the output end of the steel strip 210 passes through the mounting bracket 300 and extends to the side of the mounting bracket 300 away from the steel strip coil storage box 200; the slide 310 is provided with matching concave wheels 320 and cams 330 on both sides of the steel strip 210 for loading the steel strip 210; the mounting bracket 300 is provided with a limiting part along the sliding direction of the slide 310 for adjusting the distance between the concave wheels 320 and the cams 330.

[0020] In this embodiment, the base 100 extends along the first direction and is usually arranged along the direction of the inclined shaft track. It has an array of mounting holes on both sides for fixing to the ground or support structure on both sides of the track by anchor bolts and other fasteners, so as to ensure the stability of the device under stress.

[0021] In this embodiment, the steel strip storage box 200 is fixedly installed at one end of the base 100, and the inside contains the coiled steel strip 210; the steel strip storage box 200 can adopt a closed or semi-closed box structure to protect the steel strip 210 from the influence of the external environment, while ensuring the stability of the steel strip path during the extraction process.

[0022] In this embodiment, the output end of the steel strip 210 is led out from the steel strip coil storage box 200, passes through the mounting frame 300, and extends to the side of the mounting frame 300 away from the steel strip coil storage box, so as to connect with an external vehicle blocking system or interception mechanism.

[0023] In this embodiment, the slide 310 is provided with matching concave wheels 320 and cams 330 on both sides of the steel belt 210; the concave wheels 320 and cams 330 together form a pair of extrusion wheels, which are used to load the steel belt 210 when it passes through; in the initial state, a certain gap is maintained between the concave wheels and the cams, allowing the steel belt to pass freely without producing obvious deformation.

[0024] In this embodiment, the mounting bracket 300 is provided with a limiting part along the sliding direction of the slide 310. The limiting part is used to adjust the distance between the concave wheel 320 and the cam 330 during the sliding of the slide 310. When the slide 310 slides along the mounting bracket 300 due to external tension, the limiting part guides the cam 330 to gradually approach the concave wheel 320, thereby causing the steel belt 210 passing between them to undergo longitudinal U-shaped plastic deformation, generating gradually increasing resistance and achieving a slow-load braking effect.

[0025] In this embodiment, the device is symmetrically arranged on both sides of the inclined track in practical applications. When a runaway accident occurs, the blocking system drives the slide 310 to slide along the mounting frame 300 through the traction steel belt 210. The distance between the concave wheel and the cam is gradually reduced by the action of the limiting part. The steel belt undergoes plastic deformation under the compression of the double wheel, absorbing the impact kinetic energy until the runaway stops.

[0026] In a preferred embodiment, the mounting bracket 300 includes parallel side plates and a top plate connected between the two side plates; the side plates extend along a first direction and are perpendicular to the base 100; the base 100 is fixedly connected to or integrally formed with the side plates; the top plate is fixedly connected to or integrally formed with the side plates.

[0027] In this embodiment, the mounting frame 300 consists of two parallel side plates and a top plate; the top plate is fixedly connected between the upper ends of the two side plates, thereby forming a frame structure with sufficient rigidity and support together with the two side plates.

[0028] In this embodiment, both side plates extend along a first direction, and their mounting planes are perpendicular to the upper surface of the base 100 to ensure precise sliding guidance for the carriage along the first direction.

[0029] In this embodiment, the base 100 and the lower edges of the two side plates are fixedly connected by welding or bolts, or the two can be integrally formed by casting process, so as to ensure that the mounting bracket 300 stands stably on the base 100.

[0030] In this embodiment, the top plate and the two side plates are also fixedly connected by welding or bolts, or manufactured by an integral molding process, to ensure the stability and load-bearing capacity of the overall structure of the mounting frame 300.

[0031] In a preferred embodiment, the carriage 310 includes parallel mounting plates and sliding plates for connecting the two mounting plates; the number of sliding plates includes two, which are parallel to each other and are aligned with the base 100; the two sliding plates are located at both ends of the mounting plates in the vertical direction, and their width matches the distance between the two side plates, for limiting the sliding direction of the carriage 310; the distance between the outer sides of the two mounting plates is relatively smaller than the distance between the two side plates, for mounting the concave wheel 320 and the cam 330.

[0032] In this embodiment, the two slide plates are located at the two ends of the two mounting plates in the vertical direction, namely the upper end and the lower end of the mounting plates; the width of each slide plate matches the inner distance between the two side plates on the mounting frame 300, so that the slide plate can be embedded between the two side plates and slide along them, thereby precisely restricting the slide 310 to slide only in the first direction.

[0033] In this embodiment, the distance between the outer sides of the two mounting plates is set to be slightly smaller than the distance between the inner sides of the two side plates on the mounting bracket 300; this size design allows the mounting plates to be accommodated in the space between the two side plates and provides the necessary mounting position and movement space for the loading components mounted on them.

[0034] In a preferred embodiment, the concave wheel 320 is connected to the carriage 310 via a fixed shaft 321; both ends of the fixed shaft 321 pass through the corresponding mounting plates and are rotatably connected to the mounting plates; the two mounting plates are provided with matching bearing seats on the side opposite to each other, corresponding to the fixed shaft 321.

[0035] In this embodiment, the two ends of the fixed shaft 321 pass through the two corresponding mounting plates on the slide 310, so that the concave wheel 320 is reliably mounted between the two mounting plates.

[0036] In this embodiment, the fixed shaft 321 and the mounting plate are connected by a rotatable connection, so that the concave wheel 320 can rotate freely around the axis of the fixed shaft 321, thereby reducing the frictional resistance when the steel belt 210 passes through.

[0037] In this embodiment, on the outer sides of the two mounting plates that are far apart from each other, corresponding to the positions where the fixed shaft 321 protrudes from both ends, a matching bearing seat is provided respectively; the bearing seat is used to support and fix the fixed shaft 321, ensuring that it rotates smoothly and bears the load from the steel belt 210.

[0038] In a preferred embodiment, the cam 330 is connected to the carriage 310 via a movable shaft 331; the two ends of the movable shaft 331 respectively pass through the two corresponding mounting plates; the mounting plate is provided with matching strip holes corresponding to the movable shaft 331; the extension direction of the strip holes is perpendicular to the base 100, and is used for the cam 330 to move up and down.

[0039] In this embodiment, the two ends of the movable shaft 331 pass through and extend out of the corresponding two mounting plates on the slide 310, thereby assembling the cam 330 between the two mounting plates.

[0040] In this embodiment, on the mounting plate, a matching strip hole is provided at the position where the two ends of the movable shaft 331 pass through; the strip hole is an elongated oval through hole; the length direction of the strip hole is set to be perpendicular to the mounting plane of the base 100; the strip hole provides vertical movement space for the end of the movable shaft 331, thereby allowing the cam 330 to move up and down relative to the slide 310 to adjust its loading position.

[0041] In a preferred embodiment, the limiting part is disposed on the side plate and includes a guide rail 340; the number of guide rails 340 includes two, which are respectively installed on the side of the two side plates that are close to each other; the guide rail 340 is fitted and fixedly installed with the side plate, and the top is provided with an inclined surface extending along the first direction for supporting the movable shaft 331.

[0042] In this embodiment, the top of the guide rail 340 is constructed with an inclined surface extending in a first direction; the inclined surface extends from one end near the steel strip storage box 200 to the other end with a gentle or set slope, which is used to support and guide both ends of the movable shaft 331 when the slide 310 slides, thereby adjusting the position of the cam 330 by raising and lowering the movable shaft 331.

[0043] In a preferred embodiment, the concave wheel 320 and the cam 330 are arranged vertically between each other; the cam 330 is located below the concave wheel 320 and is used to press the steel strip 210 into the concave wheel 320 to generate resistance through deformation.

[0044] In this embodiment, the concave wheel 320 and the cam 330 are arranged vertically in space.

[0045] Specifically, the cam 330 is located directly below the concave wheel 320; the two are aligned in the vertical direction so that the steel strip 210 drawn from the steel strip storage box 200 can pass horizontally between them.

[0046] In this embodiment, when the slide 310 slides, reducing the distance between the cam 330 and the concave wheel 320, the lower cam 330 will move upward, thereby pressing the steel belt 210 passing between them into the groove of the upper concave wheel 320. This interaction that forces the steel belt 210 to bend causes the steel belt 210 to undergo longitudinal plastic deformation. It is through this controllable and gradual deformation process that the steel belt 210 absorbs and dissipates energy during the continuous pulling process, thereby providing adjustable and gradually increasing resistance for the sports car protection system.

[0047] In a preferred embodiment, a reinforcing rib 110 is further provided between the base 100 and the mounting bracket 300 to improve the connection strength between the mounting bracket 300 and the base 100; the number of the reinforcing ribs 110 includes a plurality of ribs, which are perpendicular to the base 100 and evenly arranged along the first direction.

[0048] In this embodiment, the reinforcing rib 110 is fixedly connected between the upper surface of the base 100 and the outer side of the side plate of the mounting bracket 300, forming a triangular support structure.

[0049] In this embodiment, the number of reinforcing ribs 110 includes multiple ribs, which are arranged in parallel to each other, and the plate surface of each reinforcing rib is perpendicular to the length direction of the base 100.

[0050] In this embodiment, the plurality of reinforcing ribs 110 are evenly spaced along the first direction of the base 100, thereby providing a continuous and uniform reinforcing effect along the connection length between the mounting bracket 300 and the base 100.

[0051] In this embodiment, the reinforcing rib 110 is used to significantly improve the connection stiffness and overall structural strength between the mounting frame 300 and the base 100, so as to resist the huge tensile force transmitted by the steel strip 210 and the possible impact load during the energy absorption process, and ensure the stability and reliability of the device operation.

[0052] In a preferred embodiment, the interior of the steel strip storage box 200 is provided with an installation shaft corresponding to the steel strip 210; the installation shaft is rotatably connected to the steel strip storage box 200 for allowing the steel strip 210 to rotate and extend.

[0053] In this embodiment, an installation shaft is provided inside the steel strip storage box 200 corresponding to the coiled steel strip 210; the installation shaft is arranged horizontally in the internal space of the steel strip storage box 200, and its axis is perpendicular to the first direction of the base 100; the steel strip 210 is wound around the outer periphery of the installation shaft.

[0054] In this embodiment, the mounting shaft is used to support and house the wound steel strip 210, and when the steel strip 210 is pulled out, it relies on its rotation to release the steel strip, ensuring that the steel strip 210 can extend and be output smoothly and steadily.

[0055] In a preferred embodiment, the output end of the steel strip 210 is further provided with a connecting buckle 211 for docking with an external interception mechanism.

[0056] In this embodiment, the connecting buckle 211 is fixedly connected to the end position of the steel belt 210 after it passes through its loading mechanism; the connecting buckle 211 is used to reliably dock with an external interception mechanism, such as a barrier or catcher in a sports car protection system; when a sports car accident occurs, the external interception mechanism pulls the connecting buckle 211 to smoothly transfer the impact load to the steel belt 210 and start the entire energy absorption and buffering process.

[0057] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belt, characterized in that, include: The base (100) extends along a first direction and has mounting holes arranged in an array on both sides for fixed connection with the outside. A steel strip storage box (200) is fixedly installed at one end of the base (100) and has coiled steel strip (210) inside. The loading mechanism is located at one end of the base (100) away from the steel strip coil storage box (200), and includes a mounting bracket (300) fixedly mounted on the base (100) and a slide (310) slidably mounted on the mounting bracket (300). The output end of the steel strip (210) passes through the mounting frame (300) and extends to the side of the mounting frame (300) away from the steel strip coil storage box (200); The slide (310) is provided with matching concave wheels (320) and cams (330) on both sides of the steel belt (210) for loading with the steel belt (210); The mounting bracket (300) is provided with a limiting part along the sliding direction of the slide (310) for adjusting the distance between the concave wheel (320) and the cam (330).

2. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belt according to claim 1, characterized in that, The mounting bracket (300) includes parallel side plates and a top plate connected between the two side plates; The side plate extends along the first direction and is perpendicular to the base (100); The base (100) is fixedly connected to the side plate or integrally formed; The top plate and the side plate are fixedly connected or integrally formed.

3. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belt according to claim 2, characterized in that, The carriage (310) includes parallel mounting plates and a sliding plate for connecting the two mounting plates; The number of the skateboards includes two, which are parallel to each other and are attached to the base (100). The two slide plates are located at both ends of the mounting plate in the vertical direction, and their width matches the distance between the two side plates, in order to limit the sliding direction of the slide (310); The distance between the outer sides of the two mounting plates is relatively smaller than the distance between the two side plates, for mounting the concave wheel (320) and the cam (330).

4. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belt according to claim 3, characterized in that, The concave wheel (320) is connected to the carriage (310) via a fixed shaft (321); The two ends of the fixed shaft (321) pass through the corresponding mounting plates and are rotatably connected to the mounting plates; The two mounting plates are respectively provided with matching bearing seats on the side that is far apart from each other, corresponding to the fixed shaft (321).

5. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belt according to claim 3, characterized in that, The cam (330) is connected to the carriage (310) via a movable shaft (331); The two ends of the movable shaft (331) respectively pass through the two corresponding mounting plates; The rotating plate is provided with matching strip holes corresponding to the movable shaft (331); The extension direction of the strip hole is perpendicular to the base (100) and is used for the cam (330) to move up and down.

6. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel strip according to claim 5, characterized in that, The limiting part is disposed on the side plate and includes a guide rail (340). The number of guide rails (340) includes two, which are respectively installed on the side of the two side plates that are close to each other; The guide rail (340) is fitted and fixedly installed with the side plate, and the top is provided with an inclined surface extending along the first direction for supporting the movable shaft (331).

7. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel belt according to claim 1, characterized in that, The concave wheel (320) and the cam (330) are arranged vertically between each other; The cam (330) is located below the concave wheel (320) and is used to press the steel strip (210) into the concave wheel (320) to generate resistance through deformation.

8. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel strip according to claim 1, characterized in that, A reinforcing rib (110) is also provided between the base (100) and the mounting bracket (300) to improve the connection strength between the mounting bracket (300) and the base (100); The number of the reinforcing ribs (110) includes multiple ribs, which are perpendicular to the base (100) and evenly distributed along the first direction.

9. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel strip according to claim 1, characterized in that, The interior of the steel strip storage box (200) is provided with an installation shaft corresponding to the steel strip (210); The mounting shaft is rotatably connected to the steel strip storage box (200) for the steel strip (210) to rotate and extend.

10. The sports car protection energy absorption device for slow-loaded longitudinal deformation of steel strip according to claim 1, characterized in that, The output end of the steel strip (210) is also provided with a connecting buckle (211) for docking with an external interception mechanism.

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