A smooth shoe assembly with damping function for a coal mining machine
By designing a smooth shoe assembly with shock absorption function on the coal mining machine, and using rubber shock-absorbing pads and optical shaft structure to absorb vibration, the problem of jumping and fastener loosening caused by hard gangue in the coal mining machine was solved, thus achieving stability and durability for safe production.
Patent Information
- Application Number
- CN202521633851.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-01
AI Technical Summary
When the coal mining machine passes through faults and interbedded rock, the excessive hardness of the rock increases the cutting resistance, causing the whole machine to bounce up and down and the fasteners to loosen, posing a safety hazard.
Design a smooth shoe assembly with shock absorption function, which adopts a structure of rubber shock-absorbing pads, optical shaft, pressure plate and screws. The optical shaft is fastened by threaded connection and sliding fit. Combined with shock-absorbing materials and structure, it absorbs and disperses vibration energy and prevents vibration from being transmitted to the whole coal mining machine.
Effectively control the vertical movement of the coal mining machine, reduce fastener loosening, ensure the durability and stability of components, and provide a guarantee for safe production.
Smart Images
Figure CN224679488U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of coal mining equipment, and in particular to a smooth shoe assembly with shock absorption function for a coal mining machine. Background Technology
[0002] Currently, domestic coal mining machines lack vibration damping measures. When the coal mining machine passes through faults and interbedded rock, the cutting resistance increases due to the excessive hardness of the rock. In addition, the entire coal mining machine is rigidly connected, resulting in unstable loads and causing the machine to bounce up and down. The coal mining machine uses many fasteners, which can loosen under frequent vibrations. When the fasteners become loose or even fall off, safety accidents may occur, affecting the normal production activities of the coal mine.
[0003] If a smooth shoe assembly with shock absorption function is designed, it can effectively block the transmission of vibration when the coal mining machine is cutting coal normally, provide better cushioning for the coal mining machine, reduce the loosening of the fasteners inside the coal mining machine, reduce accidents, and ensure the smooth progress of safe production. Utility Model Content
[0004] The purpose of this invention is to provide a smooth shoe assembly with shock absorption function for coal mining machines, so as to solve the problem mentioned in the background art that fasteners will loosen under frequent vibration.
[0005] This utility model provides a smooth shoe assembly with shock absorption function for a coal mining machine, comprising:
[0006] A smooth boot, wherein a connecting plate is provided inside the smooth boot, a square sleeve and a rubber shock-absorbing pad are provided inside the connecting plate, an optical axis is provided on one side of the smooth boot, the optical axis is inserted and engaged with the smooth boot, one end of the optical axis passes through the smooth boot and the connecting plate, the connecting plate is slidably connected to the smooth boot, a pressure plate is provided inside the optical axis, and a washer is provided on one side of the pressure plate.
[0007] By adopting the above technical solutions, the vertical movement of the coal mining machine will be effectively controlled, and the loosening of internal fasteners will be greatly reduced. The design of the smooth shoe assembly also needs to consider its durability and stability to ensure that it can maintain a good shock absorption effect during long-term use, thus providing a strong guarantee for the safe production of coal mines.
[0008] Preferably, a screw is slidably connected to one side of the washer, and the smooth shoe is threadedly connected to the screw.
[0009] By adopting the above technical solution, the pressure plate inside the optical axis achieves fastening of the optical axis with the cooperation of screws and washers.
[0010] Preferably, one end of the screw passes through the washer and extends into the optical axis, and the screw is slidably connected to the pressure plate.
[0011] By adopting the above technical solution, since the screw, washer, and pressure plate are all sliding connections and threaded connections to the smooth shoe, when the screw is tightened, the screw moves forward under the action of the internal thread of the smooth shoe, pushing the washer and pressure plate to squeeze the optical shaft, thereby firmly fixing the optical shaft to the smooth shoe and connecting plate; conversely, loosening the screw can realize the disassembly or fine adjustment of the position of the optical shaft, which facilitates the maintenance and replacement of the components.
[0012] Preferably, a fuselage connecting plate is provided directly above the smooth boot, and the connecting plate is fixed to the fuselage connecting plate by a connecting shaft and a retaining ring.
[0013] By adopting the above technical solution, the connecting shaft is fixed to the machine body connecting plate and the connecting plate by means of a retaining ring. The retaining ring can effectively prevent the connecting shaft from axial displacement during operation and ensure the stability of the connection.
[0014] Preferably, a protrusion is provided on one side of the connecting shaft.
[0015] By adopting the above technical solution, combined with the engagement of the protrusion and the slot, the relative position of the connecting plate and the body connecting plate is further fixed, avoiding the impact on the normal operation of the components due to positional displacement caused by vibration and other factors, and by using shock-absorbing materials and shock-absorbing structures.
[0016] Preferably, the lower end of the connecting plate has a mounting hole.
[0017] By adopting the above technical solution, the cooperation between the connecting shaft and the mounting hole ensures the fixation of the relative position between the connecting plate and the machine body connecting plate.
[0018] Preferably, the mounting hole has a plurality of slots, and the plurality of slots are arranged in a ring-shaped structure with equal spacing.
[0019] By adopting the above technical solution, the several slots in the mounting hole at the lower end of the connecting plate are in a ring-shaped, equally spaced structure, and the protrusion on one side of the connecting shaft can engage with different slots.
[0020] In summary, this application includes at least one of the following beneficial technical effects: When one end of the optical shaft passes through the smooth shoe and the connecting plate, it serves to connect the two and assist in positioning. The optical shaft and the smooth shoe are connected by a plug-in joint, ensuring the accuracy and initial fixation of the optical shaft's installation position. The pressure plate inside the optical shaft, in conjunction with screws and washers, secures the optical shaft. Since the screws, washers, and pressure plates are all sliding connections and threaded connections to the smooth shoe, when the screws are tightened, the screws advance under the action of the internal thread of the smooth shoe, pushing the washers and pressure plates to compress the optical shaft, thereby firmly fixing the optical shaft to the smooth shoe and the connecting plate. Conversely, loosening the screws allows for the disassembly or fine-tuning of the optical shaft's position, facilitating component maintenance and replacement. By employing damping materials and structures, during the operation of the coal mining machine, when encountering hard gangue that increases cutting resistance, the smooth shoe assembly can absorb and disperse this vibration energy, preventing the vibration from being directly transmitted to the entire coal mining machine. In this way, the vertical movement of the coal mining machine will be effectively controlled, and the problem of loosening of internal fasteners will be greatly reduced. The design of the smooth shoe assembly also needs to consider its durability and stability to ensure that it can maintain a good shock absorption effect during long-term use, thus providing a strong guarantee for the safe production of coal mines. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a detailed structural diagram of the internal structure of the pressure plate of this utility model;
[0023] Figure 3 This is a schematic diagram of the connecting shaft structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the card slot part of this utility model.
[0025] Reference numerals: 1. Smooth shoe; 2. Pressure plate; 3. Optical axis; 4. Square sleeve; 5. Rubber shock-absorbing pad; 6. Connecting plate; 7. Connecting shaft; 8. Retaining ring; 9. Screw; 10. Washer; 11. Body connecting plate; 12. Protrusion; 13. Mounting hole; 14. Slot. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0027] This application discloses a smooth shoe assembly with shock absorption function for a coal mining machine.
[0028] Reference Figures 1-3 A smooth shoe assembly with shock absorption function for a coal mining machine includes:
[0029] A smooth shoe 1 is provided, with a connecting plate 6 inside. A square sleeve 4 and a rubber shock-absorbing pad 5 are provided inside the connecting plate 6. The rubber shock-absorbing pad 5 utilizes the elastic properties of rubber to achieve shock absorption and cushioning. A light shaft 3 is provided on one side of the smooth shoe 1. The light shaft 3 provides guidance, support, or transmission reference for moving parts. One end of the light shaft 3 passes through the smooth shoe 1 and the connecting plate 6. A pressure plate 2 is provided inside the light shaft 3. A washer 10 is provided on one side of the pressure plate 2. The washer 10 optimizes the connection performance through its own deformation or structural characteristics. A screw 9 is provided on one side of the washer 10. One end of the optical axis 3 passes through the washer 10 and extends into the optical axis 3. A body connecting plate 11 is positioned directly above the smooth shoe 1. The connecting plate 6 is fixed to the body connecting plate 11 via a connecting shaft 7 and a retaining ring 8. A mounting hole 13 is provided at the lower end of the connecting plate 6. A protrusion 12 is provided on one side of the connecting shaft 7. Several slots 14 are provided within the mounting hole 13. When one end of the optical axis 3 passes through the smooth shoe 1 and the connecting plate 6, it connects the two and assists in positioning. The optical axis 3 and the smooth shoe 1 are connected by a plug-in joint, ensuring the accuracy of the optical axis 3's installation position and initial fixation. The pressure plate 2 inside the optical axis 3, with the cooperation of screws 9 and washers 10, secures the optical axis 3. Since screw 9 is slidably connected to washer 10 and pressure plate 2, and threadedly connected to smooth shoe 1, when screw 9 is tightened, it moves forward under the action of the internal thread of smooth shoe 1, pushing washer 10 and pressure plate 2 to squeeze optical shaft 3, thus firmly fixing optical shaft 3 to smooth shoe 1 and connecting plate 6. Conversely, loosening screw 9 allows for the disassembly or fine-tuning of optical shaft 3, facilitating component maintenance and replacement. By adopting damping materials and structures, during the operation of the coal mining machine, when encountering hard gangue that increases cutting resistance, the component can absorb and disperse this vibration energy, preventing the vibration from being directly transmitted to the entire coal mining machine. In this way, the vertical movement of the coal mining machine will be effectively controlled, and the problem of loosening internal fasteners will be greatly reduced. The design of this component also needs to consider its durability and stability to ensure that it can maintain a good damping effect during long-term use, providing a strong guarantee for the safe production of coal mines.
[0030] Reference Figure 1 A screw 9 is slidably connected to one side of the washer 10, and the smooth shoe 1 is threadedly connected to the screw 9. The pressure plate 2 inside the optical axis 3 is fastened to the optical axis 3 by the cooperation of the screw 9 and the washer 10.
[0031] Reference Figures 1-2 One end of the screw 9 passes through the washer 10 and extends into the optical axis 3. The screw 9 is slidably connected to the pressure plate 2. When the screw 9 is tightened, it moves forward under the action of the internal thread of the smooth shoe 1, pushing the washer 10 and the pressure plate 2 to squeeze the optical axis 3, thereby firmly fixing the optical axis 3 to the smooth shoe 1 and the connecting plate 6. Conversely, loosening the screw 9 allows for the disassembly or fine adjustment of the position of the optical axis 3, facilitating the maintenance and replacement of the components.
[0032] Reference Figures 1-2 A body connecting plate 11 is disposed directly above the smooth shoe 1. The connecting plate 6 is fixed to the body connecting plate 11 by a connecting shaft 7 and a retaining ring 8. The connecting shaft 7 is fixed to the body connecting plate 11 and the connecting plate 6 by the retaining ring 8. The retaining ring 8 can effectively prevent the connecting shaft 7 from axial displacement during operation and ensure the stability of the connection.
[0033] Reference Figure 3 A protrusion 12 is provided on one side of the connecting shaft 7. The engagement of the protrusion 12 with the slot 14 further ensures the fixation of the relative position of the connecting plate 6 and the body connecting plate 11, avoiding positional displacement caused by vibration and other factors that could affect the normal operation of the components. This is achieved by using shock-absorbing materials and structures.
[0034] Reference Figure 4 The lower end of the connecting plate 6 has a mounting hole 13. The cooperation between the connecting shaft 7 and the mounting hole 13 ensures the fixation of the relative position between the connecting plate 6 and the machine body connecting plate 11.
[0035] Reference Figure 4 The mounting hole 13 has several slots 14 arranged in a ring with equal spacing. The mounting hole 13 at the lower end of the connecting plate 6 has several slots 14 arranged in a ring with equal spacing. The protrusion 12 on one side of the connecting shaft 7 can engage with different slots 14.
[0036] The implementation principle of a shock-absorbing component for a coal mining machine according to an embodiment of this application is as follows: the smooth shoe 1 directly contacts the coal mining face, providing a stable support foundation for the entire component. The body connecting plate 11, as a key component connecting to the coal mining machine body, is fixed to the connecting plate 6 via the connecting shaft 7 and the retaining ring 8, forming a rigid connection between the component and the coal mining machine body. This ensures that the component can move synchronously with the coal mining machine during operation, effectively supporting and guiding the machine body. The rubber shock-absorbing pad 5 inside the connecting plate 6 is the core component for shock absorption. When the coal mining machine vibrates during operation, the vibration is transmitted from the machine body to the body connecting plate 11, and then to the connecting plate 6 via the connecting shaft 7. At this time, the rubber shock-absorbing pad 5 deforms using its own elastic properties, converting vibration energy into elastic potential energy, thereby buffering and absorbing vibration, reducing the impact of vibration on the smooth shoe 1 and other components of the coal mining machine. Simultaneously, the square sleeve 4 inside the connecting plate 6 limits and protects the rubber shock-absorbing pad 5, preventing excessive deformation and failure, and ensuring the stability of the shock absorption effect.
[0037] One end of the optical axis 3 passes through the smooth shoe 1 and the connecting plate 6, serving to connect the two and assist in positioning. The optical axis 3 and the smooth shoe 1 are connected by a plug-in joint to ensure the accuracy of the installation position and initial fixation of the optical axis 3. The pressure plate 2 inside the optical axis 3 is fastened by the cooperation of the screw 9 and the washer 10. Since the screw 9, washer 10, and pressure plate 2 are all slidingly connected and threaded to the smooth shoe 1, when the screw 9 is tightened, the screw 9 is pushed forward by the internal thread of the smooth shoe 1, pushing the washer 10 and pressure plate 2 to squeeze the optical axis 3, thereby firmly fixing the optical axis 3 to the smooth shoe 1 and the connecting plate 6; conversely, loosening the screw 9 allows the optical axis 3 to be disassembled or its position finely adjusted, facilitating the maintenance and replacement of components.
[0038] The connecting plate 6 and the smooth shoe 1 are connected by a sliding connection, allowing the connecting plate 6 to slide relative to the smooth shoe 1 within a certain range. This sliding fit works in conjunction with the damping effect of the rubber damping pad 5. When vibration is transmitted to the connecting plate 6, the connecting plate 6 can further buffer the vibration by sliding relative to the smooth shoe 1, thereby enhancing the overall damping effect and avoiding wear caused by rigid connection between components.
[0039] The mounting holes 13 at the lower end of the connecting plate 6 have several slots 14 arranged in an annular and equally spaced structure, and the protrusion 12 on one side of the connecting shaft 7 can engage with different slots 14.
[0040] The working principle of this utility model is as follows: By changing the engagement position of the protrusion 12 and the slot 14, the relative angle between the connecting plate 6 and the connecting shaft 7 can be precisely adjusted, thereby adjusting the relative position between the smooth shoe 1 and the machine body connecting plate 11. This adjustment mechanism enables the component to adapt to complex working conditions such as different coal seam thicknesses and working face undulations, improving the applicability of the component. The connecting shaft 7 is fixed to the machine body connecting plate 11 and the connecting plate 6 through the retaining ring 8. The retaining ring 8 can effectively prevent the connecting shaft 7 from axial displacement during operation, ensuring the stability of the connection. At the same time, the cooperation between the connecting shaft 7 and the mounting hole 13, combined with the engagement of the protrusion 12 and the slot 14, further ensures the fixation of the relative position between the connecting plate 6 and the machine body connecting plate 11, avoiding positional displacement caused by vibration and other factors that would affect the normal operation of the component. By adopting damping materials and damping structures, when encountering hard gangue during the operation of the coal mining machine, which increases the cutting resistance, the component can absorb and disperse this vibration energy, preventing the vibration from being directly transmitted to the entire coal mining machine. In this way, the vertical movement of the coal mining machine will be effectively controlled, and the problem of loosening of internal fasteners will be greatly reduced. The design of this component also needs to consider its durability and stability to ensure that it can maintain a good shock absorption effect during long-term use, thus providing a strong guarantee for the safe production of coal mines.
[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A smooth shoe assembly with shock absorption function for a coal mining machine, characterized in that, include: A smooth boot (1) is provided inside the smooth boot (1), and a connecting plate (6) is provided inside the connecting plate (6). A square sleeve (4) and a rubber shock-absorbing pad (5) are provided inside the connecting plate (6). An optical axis (3) is provided on one side of the smooth boot (1). The optical axis (3) is inserted into the smooth boot (1). One end of the optical axis (3) passes through the smooth boot (1) and the connecting plate (6). The connecting plate (6) is slidably connected to the smooth boot (1). A pressure plate (2) is provided inside the optical axis (3). A washer (10) is provided on one side of the pressure plate (2).
2. A smooth shoe assembly with shock absorption function for a coal mining machine according to claim 1, characterized in that: A screw (9) is slidably connected to one side of the washer (10), and the smooth shoe (1) is threadedly connected to the screw (9).
3. A smooth shoe assembly with shock absorption function for a coal mining machine according to claim 2, characterized in that: One end of the screw (9) passes through the washer (10) and extends into the optical axis (3), and the screw (9) is slidably connected to the pressure plate (2).
4. A smooth shoe assembly with shock absorption function for a coal mining machine according to claim 1, characterized in that: A fuselage connecting plate (11) is provided directly above the smooth boot (1), and the connecting plate (6) is fixed to the fuselage connecting plate (11) by a connecting shaft (7) and a retaining ring (8).
5. A smooth shoe assembly with shock absorption function for a coal mining machine according to claim 4, characterized in that: A protrusion (12) is provided on one side of the connecting shaft (7).
6. A smooth shoe assembly with shock absorption function for a coal mining machine according to claim 1, characterized in that: The lower end of the connecting plate (6) is provided with a mounting hole (13).
7. A smooth shoe assembly with shock absorption function for a coal mining machine according to claim 6, characterized in that: The mounting hole (13) is provided with a plurality of slots (14), and the plurality of slots (14) are arranged in a ring-shaped and equally spaced structure.