Explosion-proof traction transmission mechanism of mine monorail tooth rail passenger system
Patent Information
- Application Number
- CN202611182518.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-05
- Publication Date
- 2026-09-29
AI Technical Summary
[0004]本发明涉及一种矿用单轨齿轨乘人系统的防爆牵引传动机构，解决了现有的齿轨乘人系统多以柴油机为动力源，通过柴油机驱动柱销轮旋转来实现机车运行，在矿井等存在瓦斯、煤尘等易燃易爆介质的特殊环境中，柴油机运行产生的高温及排气易引燃可燃气体，存在较大安全隐患，且齿轨乘人系统在设计之初，按特定齿轨宽度定型，仅能适配单一规格的齿轨，适用范围受限，灵活性不足的问题
本发明在使用时，利用承载轮与齿轨滚动接触，滚动摩擦替代滑动摩擦，降低移动阻力，起到对驱动主架移动导向效果，使驱动主架能够沿齿轨稳定运动，有效防止脱轨现象发生，从而保障整个机构运行的平稳性；液压马达作为动力源，输出旋转动力并带动柱销轮持续运转，柱销轮通过其外排柱销与齿轨之间的啮合传动关系，将旋转运动转化为直线运动，从而带动驱动主架沿齿轨平稳行进；在需要减速或停车时，液压制动器对柱销轮施加制动力矩，有效抑制其转速，使驱动主架在可控状态下逐步减速直至停止，实现平稳且柔和的制动效果，避免因惯性冲击造成乘客不适或机构损伤；驱动与制动系统均采用液压方式，无需依赖电气元件参与动力传递与控制，从根本上消除了因电火花或电弧引燃可燃气体的风险，在矿井等存在瓦斯、煤尘等易燃易爆介质的特殊环境中具备本质防爆特性，显著提升了乘人系统在井下复杂工况条件下运行的安全性。
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Figure CN122830754A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mining rail transportation technology, and in particular to an explosion-proof traction transmission mechanism for a mining monorail rack passenger system. Background Technology
[0002] Coal mine underground auxiliary transportation is the lifeline for safe and efficient mine production, and personnel transportation is a critical link concerning the safety of miners' lives. As an important piece of equipment for coal mine underground auxiliary transportation, the rack locomotive, by adding a rack between two ordinary steel rails and adding a drive gear on the locomotive to mesh with the rack, can greatly increase traction and braking force and adapt to roadways with steeper gradients.
[0003] Existing rack and pinion systems mostly use diesel engines as their power source, driving the pin wheels to rotate to achieve locomotive operation. In special environments such as mines where there are flammable and explosive media such as gas and coal dust, the high temperature generated by the diesel engine and the exhaust can easily ignite flammable gases, posing a significant safety hazard. Furthermore, rack and pinion systems are designed with a specific rack width, which means they can only be adapted to a single rack specification, limiting their applicability and flexibility. Summary of the Invention
[0004] This invention relates to an explosion-proof traction transmission mechanism for a mining monorail rack-riding passenger system. It solves the problems of existing rack-riding passenger systems, which mostly use diesel engines as the power source and drive the pin wheels to rotate to achieve locomotive operation. In special environments such as mines where there are flammable and explosive media such as gas and coal dust, the high temperature generated by the diesel engine and the exhaust gas can easily ignite flammable gases, posing a significant safety hazard. In addition, rack-riding passenger systems are designed according to a specific rack width, which can only be adapted to a single specification of rack, limiting the scope of application and lacking flexibility.
[0005] In a first aspect, this invention provides an explosion-proof traction transmission mechanism for a mining monorail rack-and-gear passenger system, specifically comprising: a drive main frame, a hydraulic motor, a pin wheel, a hydraulic brake, a traction connector, a support auxiliary frame, a load-bearing wheel, a T-shaped positioning pin, a U-shaped component, an arched frame, and a spring; a hydraulic motor is fixedly installed on one side of the drive main frame, and a hydraulic brake is fixedly installed on the other side of the drive main frame; a pin wheel is installed inside the drive main frame, with both ends of the pin wheel connected to the hydraulic motor and the hydraulic brake respectively, and the pin wheel meshing with the rack-and-gear transmission; the hydraulic motor serves as a power source, outputting rotational power and driving the pin wheel to rotate continuously, and the pin wheel converts rotational motion into linear motion through the meshing transmission relationship between its outer pins and the rack-and-gear, thereby driving the drive main frame to move smoothly along the rack-and-gear; when deceleration or stopping is required, the hydraulic brake applies a braking torque to the pin wheel, effectively suppressing its rotational speed, so that the drive main frame gradually decelerates until it stops under controllable conditions. The system achieves a smooth and gentle braking effect. Traction connectors are fixedly installed at both ends of the drive main frame. Two auxiliary support frames are connected to the bottom of the drive main frame. The drive main frame has symmetrically arranged vertical insertion holes, and the auxiliary support frames have symmetrically arranged vertical insertion plates at their tops, which slide into the vertical insertion holes. A load-bearing wheel is rotatably connected to the inner side of each auxiliary support frame, and the load-bearing wheel rolls in contact with the gear rail. A T-shaped positioning pin is connected inside the drive main frame and is connected to the auxiliary support frame. Two U-shaped pieces are connected inside the drive main frame and are connected to the two T-shaped positioning pins. An arched frame is fixedly installed at the top of the drive main frame, and the top of the U-shaped pieces is connected to the arched frame, which has a spring installed at its top. The vertical insertion plates are inserted into the vertical insertion holes, connecting the drive main frame to the two auxiliary support frames. This makes it easier to disassemble and replace the auxiliary support frames. The auxiliary support frames are available in different specifications, allowing for flexible matching and selection for different gear rail widths.
[0006] Furthermore, the drive main frame has symmetrically arranged outer holes that are connected to the vertical insertion holes, and the vertical insertion plate has an inner hole that is connected to the outer holes.
[0007] Furthermore, the T-shaped locating pin is slidably connected to the outer hole, and the T-shaped locating pin passes through the inner hole.
[0008] Furthermore, the drive main frame is fixedly connected to the support auxiliary frame via T-shaped positioning pins.
[0009] Furthermore, the U-shaped component is slidably connected to the drive main frame, and symmetrical oblique sliding holes are provided inside the U-shaped component. Slider blocks are provided at opposite ends of the T-shaped positioning pin, and the sliders are slidably connected to the oblique sliding holes.
[0010] Furthermore, when the U-shaped component moves upward, the distance between the two T-shaped positioning pins gradually increases; when the U-shaped component moves downward, the distance between the two T-shaped positioning pins gradually decreases.
[0011] Furthermore, the top of the U-shaped component is provided with a spline column, and the top of the arched frame is provided with a spline hole, with the spline column sliding through the spline hole.
[0012] Furthermore, a pressure block is provided at the top of the spline column, and a spring is fitted on the outside of the spline column. The bottom of the spring contacts the top side of the arched frame, and the top of the spring contacts the bottom side of the pressure block. When the vertical insert plate is inserted into the vertical insertion hole, the outer hole and the vertical insertion hole are in a connected state. When the pressure block is released, the U-shaped part moves upward and resets under the influence of the spring force. The T-shaped positioning pin moves from the upper end to the lower end of the inclined sliding hole. The U-shaped part drives the two T-shaped positioning pins to move outward synchronously, so that the T-shaped positioning pins pass through the inner hole. The T-shaped positioning pins are used to fix the support bracket, ensuring the firmness of the connection between the support bracket and the drive main frame.
[0013] This invention provides an explosion-proof traction transmission mechanism for a mining monorail rack passenger system, which has the following advantages: In use, this invention utilizes the rolling contact between the bearing wheel and the toothed rail, replacing sliding friction with rolling friction to reduce movement resistance and guide the movement of the drive frame. This ensures the drive frame moves stably along the toothed rail, effectively preventing derailment and guaranteeing the smooth operation of the entire mechanism. The hydraulic motor serves as the power source, outputting rotational power to drive the pin wheel continuously. The pin wheel, through the meshing transmission between its outer pins and the toothed rail, converts rotational motion into linear motion, thereby driving the drive frame to move smoothly along the toothed rail. Hydraulic braking is applied when deceleration or stopping is required. The device applies braking torque to the pin wheel, effectively suppressing its rotational speed and allowing the drive frame to gradually decelerate until it stops under controllable conditions, achieving a smooth and gentle braking effect and avoiding passenger discomfort or mechanical damage caused by inertial impact. Both the drive and braking systems are hydraulic, eliminating the need for electrical components to participate in power transmission and control. This fundamentally eliminates the risk of igniting flammable gases due to electric sparks or arcs. In special environments such as mines where there are flammable and explosive media such as gas and coal dust, it has inherent explosion-proof characteristics, significantly improving the safety of the passenger system under complex underground working conditions.
[0014] In addition, the vertical insert plate and the vertical insert hole are connected together to connect the drive main frame and the two support auxiliary frames through the plug-in method, making it easier to disassemble and replace the support auxiliary frames. The support auxiliary frames are available in different specifications, which can be flexibly matched and selected for different toothed rail widths. When the toothed rail width changes in the application scenario, only the support auxiliary frame of the corresponding specification needs to be replaced to achieve quick adaptation. There is no need to modify the core components such as the drive main frame, thus effectively meeting the matching needs of toothed rails of different widths.
[0015] Furthermore, the spline column and spline hole slide together, guiding the U-shaped component's vertical movement. A spring applies an upward thrust to the U-shaped component, providing elastic reset. When the vertical insert plate is inserted into the vertical hole, the outer hole and the vertical hole are connected. Releasing the pressure block causes the U-shaped component to move upward under the spring's thrust, resetting it. The T-shaped locating pin moves from the upper end to the lower end of the oblique sliding hole, and the U-shaped component drives the two T-shaped locating pins to move outward synchronously, allowing the T-shaped locating pins to pass through the inner hole. The T-shaped locating pins securely fix the support frame, ensuring a strong connection between the support frame and the drive main frame. When the support frame needs to be replaced, pressing down on the pressure block causes the U-shaped component to move downward, the spring contracts, and the T-shaped locating pins move from the lower end to the upper end of the oblique sliding hole. The U-shaped component then drives the two T-shaped locating pins to move inward synchronously, separating them from the inner hole and releasing the support frame from its fixation. This allows for easy replacement of the support frame.
[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.
[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.
[0019] In the attached diagram: Figure 1 This paper shows a schematic diagram of the overall top-shaft side structure of the explosion-proof traction transmission mechanism of the mining monorail rack passenger system of this application; Figure 2 This paper shows a schematic diagram of the overall bottom shaft side structure of the explosion-proof traction transmission mechanism of the mining monorail rack passenger system of this application; Figure 3 This paper shows a schematic diagram of the disassembled drive main frame and support auxiliary frame of the explosion-proof traction transmission mechanism of the mine monorail rack passenger system of this application. Figure 4 This paper shows a schematic diagram of the drive frame shaft side structure of the explosion-proof traction transmission mechanism of the mining monorail rack passenger system of this application; Figure 5 This paper shows a schematic diagram of the support frame axle side structure of the explosion-proof traction transmission mechanism of the mining monorail rack passenger system of this application; Figure 6 A schematic diagram of the T-shaped positioning pin, U-shaped component, arched frame, and spring connection structure of the explosion-proof traction transmission mechanism of the mining monorail rack passenger system of this application is shown. Figure 7This paper shows a schematic diagram of the disassembled structure of the T-shaped positioning pin and U-shaped component of the explosion-proof traction transmission mechanism of the mine monorail rack passenger system of this application. Figure 8 A schematic diagram of the arched frame and spring-split structure of the explosion-proof traction transmission mechanism of the mining monorail rack passenger system of this application is shown.
[0020] Figure label: 1. Drive main frame; 101. Vertical insertion hole; 102. Outer hole; 2. Hydraulic motor; 3. Column pin wheel; 4. Hydraulic brake; 5. Traction connector; 6. Support auxiliary frame; 601. Vertical insertion plate; 6011. Inner hole; 7. Bearing wheel; 8. T-shaped positioning pin; 801. Slider; 9. U-shaped part; 901. Slanted sliding hole; 902. Spline column; 9021. Pressure block; 10. Arch frame; 1001. Spline hole; 11. Spring. Detailed Implementation
[0021] Please refer to Figures 1 to 8 Example 1: This invention proposes an explosion-proof traction transmission mechanism for a mining monorail rack-and-gear passenger system, comprising: a drive main frame 1, a hydraulic motor 2, a pin wheel 3, a hydraulic brake 4, a traction connector 5, a support auxiliary frame 6, a load-bearing wheel 7, a T-shaped positioning pin 8, a U-shaped component 9, an arched frame 10, and a spring 11; the hydraulic motor 2 is fixedly installed on one side of the drive main frame 1, and the hydraulic brake 4 is fixedly installed on the other side of the drive main frame 1; the pin wheel 3 is installed inside the drive main frame 1, with its two ends connected to the hydraulic motor 2 and the hydraulic brake 4 respectively, and the pin wheel 3 meshes with the rack-and-gear transmission; the traction connector 5 is fixedly installed at both the front and rear ends of the drive main frame 1; the drive main frame 1 The bottom is connected to two auxiliary support frames 6. The drive main frame 1 has symmetrically arranged vertical insertion holes 101 inside. The top of the auxiliary support frame 6 has symmetrically arranged vertical insertion plates 601, which are slidably inserted into the vertical insertion holes 101. The inner side of the auxiliary support frame 6 is rotatably connected to a bearing wheel 7, which rolls in contact with the gear rail. The drive main frame 1 has a T-shaped positioning pin 8 inside, which is connected to the auxiliary support frame 6. The drive main frame 1 has two U-shaped pieces 9 inside, which are connected to the two T-shaped positioning pins 8. An arched frame 10 is fixedly installed on the top of the drive main frame 1. The top of the U-shaped pieces 9 is connected to the arched frame 10, and a spring 11 is installed on the top of the arched frame 10.
[0022] The rolling contact between the bearing wheel 7 and the toothed rail replaces sliding friction with rolling friction, reducing movement resistance and guiding the movement of the drive main frame 1. This ensures stable movement of the drive main frame 1 along the toothed rail, effectively preventing derailment and guaranteeing the smooth operation of the entire mechanism. The hydraulic motor 2 serves as the power source, outputting rotational power to drive the pin wheel 3 continuously. The pin wheel 3 converts rotational motion into linear motion through the meshing transmission relationship between its outer pins and the toothed rail, thereby driving the drive main frame 1 to move smoothly along the toothed rail. When deceleration or stopping is required, the hydraulic brake 4... Applying braking torque to the pin wheel 3 effectively suppresses its rotational speed, allowing the drive frame 1 to gradually decelerate until it stops under controllable conditions, achieving a smooth and gentle braking effect and avoiding passenger discomfort or mechanical damage caused by inertial impact. Both the drive and braking systems are hydraulic, eliminating the need for electrical components to participate in power transmission and control, fundamentally eliminating the risk of igniting flammable gases due to electric sparks or arcs. In special environments such as mines where there are flammable and explosive media such as gas and coal dust, it has inherent explosion-proof characteristics, significantly improving the safety of the passenger system under complex underground working conditions. The vertical insertion plate 601 is plugged into the vertical insertion hole 101 to connect the drive main frame 1 and the two support auxiliary frames 6 together. This makes it easier to disassemble and replace the support auxiliary frames 6. The support auxiliary frames 6 are available in different specifications and can be flexibly matched and selected for different toothed rail widths. When the toothed rail width changes in the application scenario, only the support auxiliary frame 6 of the corresponding specification needs to be replaced to achieve quick adaptation. There is no need to modify the core components such as the drive main frame 1, thereby effectively meeting the matching needs of toothed rails of different widths.
[0023] In Example 2, based on Example 1, the drive main frame 1 has symmetrically arranged outer holes 102, which are connected to vertical insertion holes 101. The vertical insertion plate 601 has an inner hole 6011, which is connected to the outer hole 102. A T-shaped positioning pin 8 is slidably connected within the outer hole 102 and passes through the inner hole 6011. The drive main frame 1 is fixedly connected to the support auxiliary frame 6 via the T-shaped positioning pin 8. A U-shaped component 9 is slidably connected within the drive main frame 1. The U-shaped component 9 has symmetrically arranged oblique sliding holes 901. Slider blocks 80 are arranged at opposite ends of the T-shaped positioning pin 8. 1. The slider 801 is slidably connected in the inclined sliding hole 901. When the U-shaped part 9 moves upward, the distance between the two T-shaped positioning pins 8 gradually increases. When the U-shaped part 9 moves downward, the distance between the two T-shaped positioning pins 8 gradually decreases. A spline column 902 is provided on the top of the U-shaped part 9. A spline hole 1001 is provided on the top of the arch frame 10. The spline column 902 slides through the spline hole 1001. A pressure block 9021 is provided on the top of the spline column 902. The spring 11 is fitted on the outside of the spline column 902. The bottom of the spring 11 contacts the top side of the arch frame 10, and the top of the spring 11 contacts the bottom side of the pressure block 9021. The spline column 902 slides into the spline hole 1001, guiding the U-shaped part 9 to move up and down. The spring 11 applies an upward pushing force to the U-shaped part 9, providing an elastic reset effect. When the vertical insert plate 601 is inserted into the vertical insert hole 101, the outer hole 102 communicates with the vertical insert hole 101. Releasing the pressure block 9021 causes the U-shaped part 9 to move upward and reset under the influence of the spring 11. The T-shaped positioning pin 8 moves from the upper end to the lower end of the oblique sliding hole 901, causing the U-shaped part 9 to move the two T-shaped positioning pins 8 outward synchronously, allowing the T-shaped positioning pins 8 to pass through the inner... Inside hole 6011, T-shaped locating pins 8 are used to fix the support bracket 6, ensuring the firmness of the connection between the support bracket 6 and the drive main frame 1. When the support bracket 6 needs to be replaced, press down on the pressure block 9021. The pressure block 9021 drives the U-shaped part 9 to move downward, the spring 11 is compressed, and the T-shaped locating pin 8 moves from the lower end to the upper end of the inclined sliding hole 901. The U-shaped part 9 drives the two T-shaped locating pins 8 to move inward synchronously, so that the T-shaped locating pins 8 are separated from the inner hole 6011, releasing the fixation of the support bracket 6, and the support bracket 6 can be replaced. The operation is simple.
[0024] The working principle of this embodiment is as follows: First, according to the width of the toothed rail, a support bracket 6 of appropriate specifications is selected and inserted into the drive main frame 1. The vertical insert plate 601 is inserted into the vertical insert hole 101, and the outer hole 102 is in communication with the vertical insert hole 101. The pressure block 9021 is released, and the U-shaped part 9 moves upward and resets under the influence of the spring 11. The T-shaped positioning pin 8 moves from the upper end to the lower end of the inclined sliding hole 901. The U-shaped part 9 drives the two T-shaped positioning pins 8 to move outward synchronously, so that the T-shaped positioning pins 8 pass through the inner hole 6011. The T-shaped positioning pins 8 are used to fix the support bracket 6, ensuring the firmness of the connection between the support bracket 6 and the drive main frame 1. The bearing wheel 7 is used to roll in contact with the toothed rail. Rolling friction replaces sliding friction, reducing the moving resistance and playing a guiding role for the movement of the drive main frame 1, so that the drive main frame 1 can move stably along the toothed rail. The hydraulic motor 2 serves as a power source, outputting rotational power and driving the pin wheel 3 to rotate continuously. The pin wheel 3 passes through its outer... The meshing transmission relationship between the pin and the gear rail converts rotational motion into linear motion, thereby driving the drive frame 1 to move smoothly along the gear rail. When deceleration or stopping is required, the hydraulic brake 4 applies braking torque to the pin wheel 3, effectively suppressing its rotational speed, so that the drive frame 1 gradually decelerates until it stops under controllable conditions, achieving a smooth and gentle braking effect. Both the drive and braking systems are hydraulic, eliminating the need for electrical components to participate in power transmission and control, fundamentally eliminating the risk of igniting flammable gases due to electric sparks or arcs. When the support bracket 6 needs to be replaced, press down on the pressure block 9021. The pressure block 9021 drives the U-shaped piece 9 to move downward, the spring 11 contracts under force, and the T-shaped positioning pin 8 moves from the lower end to the upper end of the inclined sliding hole 901. The U-shaped piece 9 drives the two T-shaped positioning pins 8 to move inward synchronously, so that the T-shaped positioning pins 8 separate from the inner hole 6011, releasing the fixation of the support bracket 6, and the support bracket 6 can be replaced.
Claims
1. An explosion-proof traction transmission mechanism for a mining monorail rack passenger system, comprising: The drive main frame (1), hydraulic motor (2), pin wheel (3), hydraulic brake (4), traction connector (5), support auxiliary frame (6), bearing wheel (7), T-shaped positioning pin (8), U-shaped part (9), arch frame (10), and spring (11) are characterized in that a hydraulic motor (2) is fixedly installed on one side of the drive main frame (1), and a hydraulic brake (4) is fixedly installed on the other side of the drive main frame (1); a pin wheel (3) is installed inside the drive main frame (1), and the two ends of the pin wheel (3) are connected to the hydraulic motor (2) and the hydraulic brake (4) respectively, and the pin wheel (3) meshes with the gear transmission; traction connectors (5) are fixedly installed at both ends of the drive main frame (1); two support auxiliary frames (6) are connected to the bottom of the drive main frame (1). The drive main frame (1) has symmetrically arranged vertical insertion holes (101) inside, and the support auxiliary frame (6) has symmetrically arranged vertical insertion plates (601) on the top. The vertical insertion plates (601) are slidably inserted into the vertical insertion holes (101). The support auxiliary frame (6) is rotatably connected to a bearing wheel (7) on the inner side. The bearing wheel (7) is in rolling contact with the gear rail. The drive main frame (1) is connected to a T-shaped positioning pin (8) inside. The T-shaped positioning pin (8) is connected to the support auxiliary frame (6). The drive main frame (1) is connected to two U-shaped parts (9) inside. The U-shaped parts (9) are connected to the two T-shaped positioning pins (8). The drive main frame (1) is fixedly installed with an arched frame (10) on the top. The top of the U-shaped parts (9) is connected to the arched frame (10). The top of the arched frame (10) is installed with a spring (11).
2. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 1, characterized in that, The drive frame (1) has symmetrically arranged outer holes (102) inside, which are connected to the vertical insertion hole (101). The vertical insertion plate (601) has an inner hole (6011) inside, which is connected to the outer hole (102).
3. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 2, characterized in that, The T-shaped positioning pin (8) is slidably connected to the outer hole (102) and passes through the inner hole (6011).
4. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 1, characterized in that, The drive main frame (1) is fixedly connected to the support auxiliary frame (6) by a T-shaped positioning pin (8).
5. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 1, characterized in that, The U-shaped part (9) is slidably connected to the drive frame (1). The U-shaped part (9) is symmetrically provided with oblique sliding holes (901). The T-shaped positioning pin (8) is provided with sliders (801) at opposite ends. The sliders (801) are slidably connected to the oblique sliding holes (901).
6. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 5, characterized in that, When the U-shaped part (9) moves upward, the distance between the two T-shaped positioning pins (8) gradually increases; when the U-shaped part (9) moves downward, the distance between the two T-shaped positioning pins (8) gradually decreases.
7. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 1, characterized in that, The top of the U-shaped part (9) is provided with a spline column (902), and the top of the arched frame (10) is provided with a spline hole (1001). The spline column (902) slides through the spline hole (1001).
8. The explosion-proof traction transmission mechanism of a mining monorail rack passenger system according to claim 7, characterized in that, A pressure block (9021) is provided on the top of the spline column (902), and a spring (11) is fitted on the outside of the spline column (902). The bottom of the spring (11) contacts the top side of the arch frame (10), and the top of the spring (11) contacts the bottom side of the pressure block (9021).