A mine hoisting fall protection device

Abstract

This utility model discloses a mine hoisting anti-fall buffer device, relating to the field of mine hoisting device buffer technology. It includes a hoisting frame, with slide rails symmetrically fixedly connected to both sides of the inner side of the hoisting frame. A lifting car is slidably connected inside the hoisting frame. A buffer mechanism is provided inside the hoisting frame and below the lifting car. The buffer mechanism includes a first buffer component and a second buffer component, which cooperate with each other. The first buffer component includes a fixed block with its inner sides... This mine hoisting anti-fall buffer device, through its buffer mechanism, allows the car to smoothly decelerate to a stop. It works in conjunction with the braking mechanism of the drive device, which decelerates or even stops the car. When stopping is impossible, it effectively buffers the car, ensuring the safety of personnel and equipment. It has a simple structure and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of buffer technology for mine hoisting devices, and in particular to a mine hoisting anti-fall buffer device. Background Technology

[0002] Mine hoisting equipment is the core equipment of the mine's vertical transportation system. It is used to lift and transport personnel, ore, equipment, and materials through the shaft. It typically consists of a hoist (winch), wire rope, hoisting container (cage / skip), guiding device, and safety protection system. During mine hoisting operations, in order to prevent extreme safety accidents caused by the breakage of the hoisting wire rope, a fall protection buffer device must be installed in the hoisting system.

[0003] Based on the aforementioned technologies, the applicant believes that existing buffer devices mostly involve installing braking devices on the drive to decelerate and brake the car, thereby providing buffering. However, there is a lack of buffering mechanisms at the bottom of the car, making it impossible to provide auxiliary buffering. This results in poor buffering effect and low reliability of braking buffering. In response to the above problems, we have introduced a mine hoisting anti-fall buffer device. Utility Model Content

[0004] This utility model discloses a mine hoisting anti-fall buffer device, which aims to solve the technical problem that most existing buffer devices install a braking device on the drive to decelerate and brake the car, thereby providing buffering. However, the bottom of the car lacks a buffer mechanism, which cannot provide auxiliary buffering, resulting in poor buffering effect and low reliability of braking buffering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mine hoisting anti-fall buffer device includes a hoisting frame, with slide rails symmetrically fixedly connected to both sides of the inside of the hoisting frame. A lifting car is slidably connected inside the hoisting frame. A buffer mechanism is provided inside the hoisting frame and below the lifting car. The buffer mechanism includes a first buffer assembly and a second buffer assembly, which cooperate with each other. The first buffer assembly includes a fixed block. Sliding columns are fixedly connected between two fixed blocks on the same side of the inside of the fixed block. Buffer springs are symmetrically sleeved on the outer sides of the two sliding columns. Sliding blocks are symmetrically slidably connected to the outer sides of the two sliding columns. A rotating rod is rotatably connected to the top of the sliding block. A buffer plate is slidably connected inside the hoisting frame and between the lifting car and the buffer mechanism. Rotating blocks are symmetrically fixedly connected to both sides of the bottom of the buffer plate. The rotating blocks are rotatably connected to the rotating rod.

[0007] This mine hoisting fall protection device uses a sliding connection between the slide rails inside the hoisting frame and the hoisting car to ensure that the car moves along a fixed path during a fall, preventing deviation. The first buffer assembly employs a linked structure of a fixed block, sliding column, buffer spring, and sliding block, combined with the rotational connection between the rotating rod and the buffer plate, so that the impact force of the fall is absorbed and dispersed by the buffer spring, effectively reducing the instantaneous impact. The buffer plate further transmits the impact to the second buffer assembly, achieving multi-stage buffering and improving safety and reliability.

[0008] In a preferred embodiment, the second buffer assembly includes a damping column, which is fixedly connected to the bottom of the inner wall of the lifting frame. The telescopic end of the damping column is fixedly connected to the bottom of the buffer plate. Rubber balls are fixedly connected in a rectangular array on both sides of the inner wall of the lifting frame, and buffer airbags are fixedly connected in a rectangular array on the top of the buffer plate.

[0009] The damping column of the second buffer assembly provides controllable hydraulic resistance, connected to the buffer plate, allowing the impact force to be gradually absorbed, avoiding rigid braking. The rubber ball and the buffer airbag form an elastic buffer layer, further absorbing the remaining impact energy, reducing vibration inside the car, and improving passenger comfort and equipment safety.

[0010] In a preferred embodiment, a support block for limiting the position is fixedly connected to the bottom of the slide rail, and a silicone pad is fixedly connected to the top of the support block.

[0011] The support blocks and silicone pads provide stable support after the car is fully braked, preventing the car from rebounding or sliding and ensuring the reliability of the final braking. At the same time, the silicone pads can absorb some of the residual impact and reduce wear on the metal structure.

[0012] In a preferred embodiment, limit blocks are fixedly connected to the outer sides of both sliding columns.

[0013] The limit block restricts the movement range of the sliding block, preventing the buffer spring from being over-compressed or the sliding column from being deformed by force, ensuring that the buffer mechanism can still work stably under extreme conditions and improving the durability of the device.

[0014] In a preferred embodiment, ventilation windows are provided on both sides of the interior of the lifting car.

[0015] The ventilation window design improves air circulation inside the car, preventing pressure changes caused by high-speed descent from affecting passenger comfort, and also helps with heat dissipation and the removal of harmful gases in emergencies.

[0016] In a preferred embodiment, the outer sides of the buffer mechanism are coated with an anti-rust coating to prevent corrosion.

[0017] The application of anti-rust coatings can extend the service life of buffer mechanisms in the humid environment of mines, reduce the performance degradation caused by the corrosion of metal parts, and ensure long-term stable operation.

[0018] The mine hoisting anti-fall buffer device provided by this utility model has the following advantages:

[0019] Firstly, the buffer mechanism allows the car to decelerate smoothly to a stop. It works in conjunction with the braking of the drive unit to decelerate or even stop the car. When it cannot stop, it can effectively buffer the car to ensure the safety of personnel and equipment. The structure is simple and highly practical.

[0020] Secondly, the support blocks and silicone pads provide stable support after the car is fully braked, preventing the car from rebounding or sliding and ensuring the reliability of the final braking. At the same time, the silicone pads can absorb some residual impact and reduce wear on the metal structure. The limit blocks restrict the movement range of the sliding blocks, preventing the buffer springs from being over-compressed or the sliding columns from being deformed by force, ensuring that the buffer mechanism can still work stably under extreme conditions and improving the durability of the device. The design of the ventilation windows can improve air circulation inside the car, avoid the impact of air pressure changes caused by high-speed falls on passenger comfort, and at the same time help dissipate heat and exhaust harmful gases in emergency situations. The application of anti-rust coating can extend the service life of the buffer mechanism in the humid environment of the mine, reduce the performance degradation caused by the corrosion of metal parts, and ensure long-term stable operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional cross-sectional schematic diagram of a mine hoisting anti-fall buffer device proposed in this utility model.

[0022] Figure 2 This is a three-dimensional schematic diagram of the buffer mechanism of a mine hoisting anti-fall buffer device proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the lifting frame of a mine hoisting anti-fall buffer device proposed in this utility model.

[0024] Figure 4 This is a three-dimensional schematic diagram of the lifting car of a mine hoisting anti-fall buffer device proposed in this utility model.

[0025] In the attached diagram: 1. Lifting frame; 2. Slide rail; 3. Lifting car; 41. Fixing block; 42. Sliding column; 43. Buffer spring; 44. Sliding block; 45. Limiting block; 46. Buffer plate; 47. Rotating block; 48. Rotating rod; 49. Damping column; 5. Rubber ball; 6. Buffer airbag; 7. Support block; 8. Ventilation window. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] The mine hoisting anti-fall buffer device disclosed in this utility model is mainly used in the scenario of buffering mine hoisting devices.

[0028] Reference Figure 1 - Figure 4 A mine hoisting anti-fall buffer device includes a hoisting frame 1. Slide rails 2 are symmetrically fixedly connected to both sides of the inside of the hoisting frame 1. A lifting car 3 is slidably connected inside the hoisting frame 1. A buffer mechanism is provided inside the hoisting frame 1 and below the lifting car 3. The buffer mechanism includes a first buffer assembly and a second buffer assembly, which cooperate with each other. The first buffer assembly includes a fixing block 41. Slide columns 42 are fixedly connected between two fixing blocks 41 on the same side inside the fixing block 41. Buffer springs 43 are symmetrically sleeved on the outer sides of the two slide columns 42. Slide blocks 44 are symmetrically slidably connected to the outer sides of the two slide columns 42. A rotating rod 48 is rotatably connected to the top of the slide blocks 44. A buffer plate 46 is slidably connected inside the hoisting frame 1 and between the lifting car 3 and the buffer mechanism. Rotating blocks 47 are symmetrically fixedly connected to both sides of the bottom of the buffer plate 46. The rotating blocks 47 are rotatably connected to the rotating rod 48. The second buffer assembly includes a damping column 49, which is fixedly connected to the bottom of the inner wall of the lifting frame 1. The telescopic end of the damping column 49 is fixedly connected to the bottom of the buffer plate 46. Rubber balls 5 are fixedly connected in a rectangular array on both sides of the inner wall of the lifting frame 1, and buffer airbags 6 are fixedly connected in a rectangular array on the top of the buffer plate 46.

[0029] In this embodiment, when the wire rope breaks or the brake fails in the mine hoisting system, the hoisting car 3 falls along the slide rail 2. The impact force first acts on the buffer plate 46, pushing the rotating block 47 to drive the rotating rod 48 to rotate, causing the sliding block 44 to slide along the sliding column 42 and compress the buffer spring 43 for primary buffering. Subsequently, the buffer plate 46 presses down on the damping column 49, using hydraulic damping to absorb energy and achieve secondary buffering. Finally, the rubber ball 5 and the buffer airbag 6 provide elastic buffering to further reduce the impact. Through the buffer mechanism, the car is smoothly decelerated to a stop. It works in conjunction with the brake of the drive device to decelerate or even stop the car. When it cannot stop, it can effectively buffer the car to ensure the safety of personnel and equipment. The structure is simple and highly practical.

[0030] In the above technical solution, considering that existing buffer devices mostly involve installing braking devices on the drive to decelerate and brake the car, thus providing buffering, but lacking a buffer mechanism at the bottom of the car, they cannot provide auxiliary buffering, resulting in poor buffering effect and low reliability of braking buffering, the specific operation is as follows:

[0031] Reference Figure 1 - Figure 4 In a preferred embodiment, a support block 7 for limiting is fixedly connected to the bottom of the slide rail 2, and a silicone pad is fixedly connected to the top of the support block 7. Limiting blocks 45 are fixedly connected to the outer sides of both slide columns 42. Ventilation windows 8 are provided on both sides of the interior of the lifting car 3. The outer side of the buffer mechanism is coated with anti-rust paint to prevent corrosion.

[0032] In this embodiment, the support block 7 and the silicone pad provide stable support after the car is fully braked, preventing the car from rebounding or sliding and ensuring the reliability of the final braking. At the same time, the silicone pad can absorb some residual impact and reduce wear on the metal structure. The limiting block 45 restricts the movement range of the sliding block 44, preventing the buffer spring 43 from being over-compressed or the sliding column 42 from being deformed by force, ensuring that the buffer mechanism can still work stably under extreme conditions and improving the durability of the device. The design of the ventilation window 8 can improve the air circulation inside the car, avoid the impact of air pressure changes caused by high-speed fall on the comfort of the passengers, and at the same time help to dissipate heat and exhaust harmful gases in emergency situations. The application of anti-rust coating can extend the service life of the buffer mechanism in the humid environment of the mine, reduce the performance degradation caused by the corrosion of metal parts, and ensure long-term stable operation.

[0033] Working principle: When the wire rope of the mine hoisting system breaks or the brake fails, the hoisting car 3 falls along the slide rail 2. The impact force first acts on the buffer plate 46, which pushes the rotating block 47 to drive the rotating rod 48 to rotate, causing the sliding block 44 to slide along the sliding column 42 and compress the buffer spring 43 for primary buffering. Subsequently, the buffer plate 46 presses down the damping column 49, using hydraulic damping to absorb energy and achieve secondary buffering. Finally, the rubber ball 5 and the buffer airbag 6 provide elastic buffering to further reduce the impact, allowing the car to decelerate smoothly to a stop, ensuring the safety of personnel and equipment.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A mine hoisting anti-fall buffer device, comprising a hoisting frame (1), characterized in that: The lifting frame (1) has slide rails (2) symmetrically fixedly connected on both sides inside. The lifting frame (1) has a lifting car (3) slidably connected inside. The lifting frame (1) has a buffer mechanism inside and below the lifting car (3). The buffer mechanism includes a first buffer component and a second buffer component, which work together. The first buffer assembly includes a fixed block (41). On the inner sides of the fixed block (41), two fixed blocks (41) on the same side are fixedly connected to a sliding column (42). Buffer springs (43) are symmetrically sleeved on the outer sides of the two sliding columns (42). Sliding blocks (44) are symmetrically slidably connected to the outer sides of the two sliding columns (42). A rotating rod (48) is rotatably connected to the top of the sliding block (44). A buffer plate (46) is slidably connected inside the lifting frame (1) and between the lifting car (3) and the buffer mechanism. Rotating blocks (47) are symmetrically fixedly connected to the bottom sides of the buffer plate (46). The rotating blocks (47) are rotatably connected to the rotating rod (48).

2. The mine hoisting anti-fall buffer device according to claim 1, characterized in that: The second buffer assembly includes a damping column (49), which is fixedly connected to the bottom of the inner wall of the lifting frame (1). The telescopic end of the damping column (49) is fixedly connected to the bottom of the buffer plate (46). Rubber balls (5) are fixedly connected in a rectangular array on both sides of the inner wall of the lifting frame (1), and buffer airbags (6) are fixedly connected in a rectangular array on the top of the buffer plate (46).

3. A mine hoisting anti-fall buffer device according to claim 1, characterized in that: The bottom of the slide rail (2) is fixedly connected to a support block (7) for limiting the position, and the top of the support block (7) is fixedly connected to a silicone pad.

4. A mine hoisting anti-fall buffer device according to claim 1, characterized in that: Limiting blocks (45) are fixedly connected to the outer sides of both sliding columns (42).

5. A mine hoisting anti-fall buffer device according to claim 1, characterized in that: Ventilation windows (8) are provided on both sides of the interior of the lifting car (3).

6. A mine hoisting anti-fall buffer device according to claim 1, characterized in that: The outer side of the buffer mechanism is coated with rust-preventive paint to prevent corrosion.

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