Mine air door car stop

Abstract

The utility model provides mine air door car stopper belongs to car stopper technical field. Including base, install drive assembly on the base, the both sides of base are installed and are used for stopping and blocking the blocking component of stopping and blocking the car, still be provided with the support component for supporting the blocking component when stopping and blocking on the base, drive assembly is used for synchronous drive support component and blocking component movement, realizes the switching of stopping and passing state. The utility model discloses through setting damper and buffer plate, when the mine car impact car stopper, damper produces resistance through fluid throttling effect, absorbs and dissipates impact energy, through setting screw, pulley and bevel gear system synchronous drive support component and blocking component, prevent the excessive bending or overturning of rotating seat.

Description

Technical Field

[0001] This utility model relates to the field of vehicle stoppers, and in particular to a vehicle stopper for mine ventilation doors. Background Technology

[0002] In mine roadway transportation systems, air doors are crucial facilities used to isolate and regulate airflow. To ensure safety, when an air door is closed, it is necessary to simultaneously prevent mine cars from passing through, thus preventing them from colliding with the air door and causing equipment damage or safety accidents. This function is usually achieved by installing car stoppers on the track. When the air door is closed, the car stoppers rise to block the mine cars; when the air door is open, the car stoppers lower to allow the mine cars to pass.

[0003] In existing technologies, when a mine car crashes into the car stopper due to loss of control or operational error, the car stopper structure will bear a huge instantaneous impact load. This impact force is directly transmitted to the base and rotating connecting parts, which can easily lead to structural deformation, cracking or loosening of the connecting parts, seriously affecting the service life and reliability of the equipment. Secondly, when the car stopper is in the raised blocking state, its support stability is often insufficient. Especially when subjected to continuous or repeated impacts from the mine car, the blocking structure may bend, tilt backward or even fail, posing a safety hazard.

[0004] Therefore, this application provides a mine ventilation door stopper to meet the requirements. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a mine ventilation door stopper to solve the problem mentioned in the background art that when a mine car hits the stopper due to loss of control or operational error, the stopper structure will bear a huge instantaneous impact load.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A mine ventilation door car stop includes a base, a drive assembly mounted on the base, and blocking assemblies for blocking mine cars mounted on both sides of the base. The base is also provided with a support assembly for supporting the blocking assemblies when blocking. The drive assembly is used to synchronously drive the support assembly and the blocking assembly to switch between blocking and passage states. The blocking assembly includes a rotating base, a damper is fixedly connected to the front end of the rotating base, and a buffer plate is fixedly connected to the movable end of the damper; the driving assembly includes a rotating bracket, a plurality of rotating brackets are provided and arranged on both sides of the base, and the rotating bases are rotatably mounted on the rotating brackets respectively.

[0007] Optionally, the barrier assembly further includes a mounting box, which is fixedly connected to the inner side of the rotating base, and a barrier net is provided between the mounting boxes.

[0008] Optionally, the barrier assembly further includes a warning light strip, which is fixedly connected to the front end of the mounting box, and a plurality of reflective strips are fixedly connected to the surface of the buffer plate.

[0009] Optionally, the support assembly includes guide rails, two of which are symmetrically fixedly connected to the base. A screw is rotatably mounted inside the guide rail, and a servo motor is fixedly connected to one side of the outer wall of one of the guide rails.

[0010] Optionally, a rotating shaft is provided between the guide rails, the rotating shaft is fixedly connected to the screw in the guide rail, and a drive pulley is fixedly connected to the rotating shaft.

[0011] Optionally, a mounting bracket is fixedly connected to the rear end of each guide rail, a drive shaft is rotatably mounted on the mounting bracket, a driven pulley is fixedly connected to the drive shaft, the driven pulley has a design diameter larger than the driving pulley, and the driven pulley and the driving pulley are connected by a synchronous belt.

[0012] Optionally, a connecting rod is fixedly connected to one end of the rotating seat, and a driven bevel gear is fixedly connected to the connecting rod.

[0013] Optionally, the support assembly further includes two support seats, which are slidably mounted on two guide rails respectively, and the support seats are threadedly connected to the screw rod via a threaded pair.

[0014] Optionally, the end of the support base is provided with a limiting groove, which is at a right angle and is used to support the rear side of the rotating base.

[0015] Optionally, both ends of the drive shaft are fixedly connected to a driving bevel gear, and the driving bevel gear meshes with the driven bevel gear.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects: In the above scheme, by setting up a damper and a buffer plate, when the mine car impacts the car stopper, the damper generates resistance through fluid throttling, absorbing and dissipating the impact energy. This allows the impact force of the mine car to act on the buffer plate first, and the instantaneous impact energy is converted into heat energy and dissipated through the throttling effect of the damper, rather than being directly transmitted to the rotating seat and base. As a result, the peak load on the key structural components is greatly reduced, avoiding metal fatigue or structural deformation caused by repeated impacts. This effectively solves the problem of the car stopper being easily damaged under harsh working conditions and extends the service life of the overall equipment.

[0017] By setting up a screw, pulley, and bevel gear system to synchronously drive the support and blocking components, when the blocking component rotates to the vertical position, the support seat moves to the rear side of the rotating seat and forms a surface contact support with the rotating seat through the limiting groove. This ensures that the support seat can provide rear support to the rotating seat in a timely manner during the switching of the blocking state, forming a stable mechanical structure. When the mine car impacts the blocking component, the support seat effectively disperses the bending moment and shear force generated by the impact through surface contact, preventing the rotating seat from bending excessively or overturning. This solves the problem of insufficient stability of the car stopper under high-pressure impact and improves the safety and impact resistance of the equipment. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1 A three-dimensional structural diagram of a mine air door brake; Figure 2 A top view schematic diagram of a mine air door vehicle stopper; Figure 3 A front view schematic diagram of a mine air door vehicle stopper; Figure 4 This is a schematic diagram of the barrier component structure.

[0020] Figure label: 1. Base; 2. Drive assembly; 201. Servo motor; 202. Rotating shaft; 203. Drive pulley; 204. Mounting bracket; 205. Drive shaft; 206. Driven pulley; 207. Synchronous belt; 208. Driven bevel gear; 209. Driven bevel gear; 210. Rotating bracket; 3. Support assembly; 301. Guide rail; 302. Screw; 303. Support base; 4. Barrier assembly; 401. Rotating base; 402. Connecting rod; 403. Damper; 404. Buffer plate; 405. Reflective strip; 406. Mounting box; 407. Warning light strip; 408. Barrier net.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0022] The mine ventilation door brake provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art can also use other alternative methods to implement the invention; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0023] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0024] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0025] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0026] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0027] like Figures 1 to 4As shown, an embodiment of this utility model provides a mine ventilation door car stop, including a base 1, a drive assembly 2 mounted on the base 1, and blocking assemblies 4 for blocking mine cars mounted on both sides of the base 1. The base 1 also has a support assembly 3 for supporting the blocking assemblies 4 during blocking. The drive assembly 2 synchronously drives the support assembly 3 and the blocking assembly 4 to switch between blocking and passage states. The blocking assembly 4 includes a rotating seat 401, with a damper 403 fixedly connected to the front end of the rotating seat 401. The movable end of the damper 403 is fixedly connected to... A buffer plate 404 is connected to the rotating seat 401 via a damper 403. Preferably, the damper 403 is a hydraulic damper or a pneumatic spring, which can effectively absorb and dissipate the impact energy through fluid throttling when subjected to the impact of a mine car, thereby significantly reducing the instantaneous impact load transmitted to the rotating seat 401 and the base 1 and improving the service life of the equipment. The drive assembly 2 includes a rotating bracket 210, and several rotating brackets 210 are provided and arranged on both sides of the base 1. The rotating seats 401 are rotatably mounted on the rotating brackets 210 respectively.

[0028] like Figure 4 As shown, the barrier assembly 4 also includes a mounting box 406, which is fixedly connected to the inner side of the rotating seat 401. A barrier net 408 is provided between the mounting boxes 406. Preferably, the barrier net 408 is made of high-strength steel wire woven mesh or high-strength synthetic fiber rope mesh such as nylon or polyester, which has good toughness and tensile strength. When subjected to impact, it can absorb energy through elastic deformation and disperse the impact force to the entire mesh surface and the rotating seats 401 on both sides, avoiding stress concentration. Under the action of the drive assembly 2, the rotating seat 401 moves from a horizontal position... When rotated to the vertical position, the netting 408 between the mounting boxes 406 is taut, forming a physical barrier. The barrier assembly 4 also includes a warning light strip 407, which is fixedly connected to the front end of the mounting box 406. Several reflective strips 405 are fixedly connected to the surface of the buffer plate 404. The reflective strips 405 and the warning light strip 407 enhance visibility. The reflective strips 405 reflect light in low-light conditions, and the warning light strip 407 flashes when the vehicle stopper is activated to remind the operator to pay attention, thereby preventing accidental collisions.

[0029] like Figure 2 , Figure 3As shown, the support assembly 3 includes guide rails 301, two of which are symmetrically fixedly connected to the base 1. A screw 302 is rotatably mounted inside each guide rail 301. A servo motor 201 is fixedly connected to one side of the outer wall of one of the guide rails 301. A rotating shaft 202 is provided between the guide rails 301, and the rotating shaft 202 is fixedly connected to the screw 302 in the guide rail 301. A drive pulley 203 is fixedly connected to the rotating shaft 202. A mounting bracket 204 is fixedly connected to the rear end of each guide rail 301. A drive shaft 205 is rotatably mounted on the mounting bracket 204. A driven pulley 206 is fixedly connected to the drive shaft 205. The design diameter of the driven pulley 206 is larger than the diameter of the drive pulley 203. The driven pulley 206 is connected to the drive pulley 203. The driving pulleys 203 are connected by a synchronous belt 207. The driven pulley 206, with a diameter slightly larger than the driving pulley 203, provides a speed reduction and torque increase effect, ensuring that the drive shaft 205 obtains sufficient torque to drive the blocking assembly 4. One end of the rotating seat 401 is fixedly connected to a connecting rod 402, and a driven bevel gear 209 is fixedly connected to the connecting rod 402. Both ends of the drive shaft 205 are fixedly connected to driving bevel gears 208, which mesh with the driven bevel gears 209. The support assembly 3 also includes a support base 303. Two support bases 303 are provided and slidably mounted on two guide rails 301 respectively. The support base 303 is threadedly connected to the screw 302 through a threaded pair, and a limit groove is provided at the end of the support base 303. The limiting groove is at a right angle and is used to support the rear side of the rotating seat 401. The support assembly 3 provides key support after the blocking assembly 4 is deployed, preventing excessive deformation or damage to the rotating seat 401 caused by the impact of the mine car. The support seat 303 moves to the rear side of the rotating seat 401 by the drive of the screw 302. The limiting groove at its end matches the rear contour of the rotating seat 401 to form a surface contact support, which can effectively resist the bending moment and shear force generated by the impact of the mine car and ensure that the rotating seat 401 remains stable in a vertical state. When the damper is not yet open, the servo motor 201 starts and drives the screw 302 to rotate. Since the screw 302 is connected to the support seat 303 through a threaded pair, the support seat 303 moves linearly along the guide rail 301. At the same time, the rotation of the screw 302... The rotation is transmitted to the drive pulley 203 via the rotating shaft 202. The drive pulley 203 drives the driven pulley 206 to rotate via the synchronous belt 207. The drive bevel gears 208 and driven bevel gears 209 at both ends of the drive shaft 205 mesh, thereby converting the horizontal rotational motion into a vertical rotational motion, which drives the rotating seat 401 to rotate. During the rotation of the rotating seat 401, the barrier net 408 will be pulled up through the mounting box 406. When the rotating seat 401 rotates from a horizontal to a vertical state, the rotating seat 401 will block the track, and the mounting box 406 will tighten the barrier net 408. At the same time, the support seat 303 moves to the side and rear of the rotating seat 401, and the limiting groove of the support seat 303 contacts the rotating seat 401 to support the rotating seat 401.

[0030] The working principle of the technical solution provided by this utility model is as follows: When the damper is closed and the passage of the mine car needs to be stopped, the drive assembly 2 is activated, and the servo motor 201 rotates in a specified direction, driving the screw 302 to rotate. The support seat 303, which is connected to the screw 302 via a threaded pair, then moves linearly forward along the guide rail 301. At the same time, the rotation of the screw 302 is transmitted to the drive pulley 203 through the rotating shaft 202. The drive pulley 203 drives the driven pulley 206 and the drive shaft 205 to rotate via the synchronous belt 207. The drive bevel gears 208 at both ends of the drive shaft 205 are fixed on the connecting rod 402. The driven bevel gear 209 meshes, converting the horizontal rotational motion into vertical rotation, thereby driving the rotating seat 401 to rotate from the horizontal position to the vertical position. During this process, the mounting box 406 fixed inside the rotating seat 401 pulls up and tightens the net 408 to form a barrier. At the same time, the support seat 303 moves into place, and the right-angle limiting groove at its end fits tightly with the rear side of the vertical rotating seat 401 to form a stable support. The warning light strip 407 is lit up, and together with the reflective strip 405 on the buffer plate 404, it emits a warning. When the airlock needs to be opened to allow the mine car to pass, the drive assembly 2 reverses its movement, the servo motor 201 rotates in the opposite direction, and the drive screw 302 drives the support seat 303 to move backward along the guide rail 301, so that the limiting groove at its end disengages from the rotating seat 401, releasing the support for the blocking assembly 4. At the same time, the reverse rotation of the screw 302 continues to be transmitted to the drive shaft 205 through the rotating shaft 202, the drive pulley 203, the synchronous belt 207, and the driven pulley 206. The drive bevel gears 208 at both ends of the drive shaft 205 drive the driven bevel gears 209 in the opposite direction, causing the rotating seat 401 to rotate from the vertical position downward to the horizontal position. As the rotating seat 401 rotates, the barrier net 408 between the mounting boxes 406 is relaxed and laid flat and retracted, and the buffer plate 404 also leaves the working area, thus making way for the mine car to pass. During this process, the warning light strip 407 goes out, indicating that the obstacle has been removed. At this point, all obstacles above the track have been cleared, and the mine car can safely pass through the airlock.

[0031] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0032] The above are merely preferred embodiments of this utility model. 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 utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A mine ventilation door brake, characterized in that, The system includes a base on which a drive assembly is mounted. Blocking assemblies for blocking mine cars are mounted on both sides of the base. A support assembly for supporting the blocking assemblies during blocking is also provided on the base. The drive assembly is used to synchronously drive the support assembly and the blocking assembly to switch between blocking and passage states. The barrier assembly includes a rotating base, a damper is fixedly connected to the front end of the rotating base, and a buffer plate is fixedly connected to the movable end of the damper. The drive assembly includes a rotating bracket, and several rotating brackets are provided on both sides of the base. The rotating seats are rotatably mounted on the rotating brackets.

2. The mine ventilation door brake according to claim 1, characterized in that, The barrier assembly also includes a mounting box, which is fixedly connected to the inner side of the rotating base, and a barrier net is provided between the mounting boxes.

3. The mine ventilation door brake according to claim 2, characterized in that, The barrier assembly also includes a warning light strip, which is fixedly connected to the front end of the mounting box, and several reflective strips are fixedly connected to the surface of the buffer plate.

4. The mine ventilation door brake according to claim 1, characterized in that, The support assembly includes guide rails, two of which are symmetrically fixedly connected to the base. A screw is rotatably installed inside the guide rail, and a servo motor is fixedly connected to one side of the outer wall of one of the guide rails.

5. The mine ventilation door brake according to claim 4, characterized in that, A rotating shaft is provided between the guide rails, and the rotating shaft is fixedly connected to the screw in the guide rail. A drive pulley is fixedly connected to the rotating shaft.

6. The mine ventilation door brake according to claim 5, characterized in that, Each guide rail is fixedly connected to a mounting bracket at its rear end. A drive shaft is rotatably mounted on the mounting bracket. A driven pulley is fixedly connected to the drive shaft. The driven pulley has a larger design diameter than the driving pulley. The driven pulley and the driving pulley are connected by a synchronous belt.

7. The mine ventilation door brake according to claim 6, characterized in that, A connecting rod is fixedly connected to one end of the rotating seat, and a driven bevel gear is fixedly connected to the connecting rod.

8. The mine ventilation door brake according to claim 4, characterized in that, The support assembly also includes two support seats, which are slidably mounted on two guide rails respectively. The support seats are threadedly connected to the screw rod via a threaded pair.

9. The mine ventilation door brake according to claim 8, characterized in that, The end of the support base is provided with a limiting groove, which is at a right angle and is used to support the rear side of the rotating base.

10. The mine ventilation door stopper according to claim 7, characterized in that, Both ends of the drive shaft are fixedly connected to a driving bevel gear, and the driving bevel gear meshes with the driven bevel gear.

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