Sampling device for coal mining quality detection
By designing a sampling device for coal mining quality detection using lifting and sampling devices, the problem of insufficient sampling parts in the prior art cannot accurately control the arrival of the specified depth and sample size, efficient and accurate coal sampling is achieved, and the accuracy and efficiency of quality detection are improved.
Patent Information
- Application Number
- CN202421839068.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing coal sampling device cannot accurately control the sampling components to reach the specified depth, and the sampler is unreasonable, resulting in insufficient sample size, affecting the accuracy and efficiency of sampling.
A sampling device for coal mining quality detection is designed, using a lifting device and a sampling device. The lifting device is threaded connection between a threaded rod and a threaded lasso, combined with the sliding groove design of the limiting plate, to achieve accurate lifting control; the sampling device drives the sampler to rotate through the second rotating motor, the drill bit penetrates the coal seam, and the sampling groove is distributed in an annular array to ensure that coal samples are collected evenly from all directions.
Accurate control of coal sampling components is achieved, the representativeness and integrity of samples is ensured, the accuracy and efficiency of sampling is improved, and the difficulty of operation and labor intensity is reduced.
Smart Images
Figure CN222952005U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mining, in particular to a sampling device for coal mining quality detection. Background Art
[0002] In the process of coal mining, in order to ensure that the quality and characteristics of the coal meet the requirements, it is necessary to conduct quality inspection on the mined coal. Effective sampling is a key step in quality inspection.
[0003] However, the existing coal sampling device still has the following shortcomings: 1. Some existing lifting devices may not be able to accurately control the sampling components to reach the specified depth, affecting the accuracy of sampling; 2. The design of the existing sampler is not reasonable, resulting in insufficient sample volume in the same time. These problems not only affect the accuracy and efficiency of sampling, but also increase the difficulty and labor intensity of the operator's work. Therefore, in order to improve the accuracy and efficiency of coal mining quality detection, it is of great practical significance to design a new type of sampling device for coal mining quality detection. Utility Model Content
[0004] The main purpose of the utility model is to provide a sampling device for coal mining quality detection, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A sampling device for coal mining quality inspection comprises a base plate, a positioning hole which passes through up and down is provided in the middle of the upper end of the base plate, self-locking pulleys are fixedly connected at the four corners of the lower end of the base plate, two handles are fixedly connected to the left end of the base plate, a fixed frame is fixedly connected to the left upper end of the base plate, sliding grooves are provided on the front inner wall surface and the rear inner wall surface of the fixed frame, a control button is provided at the front end of the fixed frame, a lifting device is fixedly connected to the upper end of the fixed frame, and a sampling device is fixedly connected to the upper end of the lifting device.
[0007] The lifting device includes a first rotating motor, the output end of which passes through a fixed frame and is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a threaded lasso, the outer front and rear parts of the outer surface of the threaded lasso are fixedly connected to a limiting plate, the outer surface of the threaded lasso is fixedly connected to a connecting block on the right side, and the lower end of the first rotating motor is fixedly connected to the middle part of the upper end of the fixed frame.
[0008] Preferably, the lower end of the threaded rod is movably connected to the lower inner wall surface of the fixed frame via a bearing.
[0009] By adopting the above technical solution: through the bearing connection, the friction between the threaded rod and the inner wall surface under the fixed frame during rotation can be significantly reduced, energy loss can be reduced, and the service life of the equipment can be extended.
[0010] Preferably, the two limit plates are both arranged in two slide grooves.
[0011] By adopting the above technical solution: the setting of the limit plate in the slide groove can ensure that the threaded lasso moves up and down along a straight line without rotation or deviation, thereby ensuring the stability and accuracy of the lifting.
[0012] Preferably, the first rotating motor is electrically connected to the control button.
[0013] By adopting the above technical solution: the start, stop and speed of the first rotating motor are directly controlled by the control button, and the operator can easily realize the motion control of the lifting device without complicated operation procedures, thereby improving work efficiency.
[0014] Preferably, the sampling device includes a second rotating motor, the output end of the second rotating motor is fixedly connected to a movable shaft, the lower end of the movable shaft is fixedly connected to a sampler, the outer surface of the sampler is provided with a plurality of sampling grooves, the lower end of the sampler is fixedly connected to a drill bit, and the lower end of the second rotating motor is fixedly connected to the upper right side of the connecting block.
[0015] By adopting the above technical solution: for harder coal seams, the effect of the drill bit is particularly obvious, and it can effectively penetrate the surface and obtain deep coal samples.
[0016] Preferably, a plurality of the sampling slots are distributed in a central annular array of the sampler.
[0017] By adopting the above technical solution: the annular array distribution ensures that during the rotation sampling process of the sampler, coal samples can be collected evenly from all directions, avoiding sampling deviation.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] 1. In the utility model, by designing a lifting device, when the control button starts the first rotating motor, its output end drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the threaded lasso, and the limit plate on the threaded lasso is limited in the slide groove, the threaded lasso can only move up and down along the threaded rod, thereby realizing precise lifting control, driving the connecting block and the connected sampling device to reach the specified depth, and being able to accurately control the sampling component to reach the specified depth, ensuring that a representative coal sample is collected, and reducing sampling inaccuracies caused by depth errors.
[0020] 2. In the utility model, by setting a sampling device, after the second rotary motor is started, its output end drives the movable shaft to rotate, thereby rotating the sampler. The drill bit at the lower end of the sampler first drills into the coal seam, and as the sampler rotates, the surrounding coal enters the sampling slot to complete the sampling. A reasonably designed sampler and multiple sampling slots can collect more coal samples in the same time, and the synergy of the sampler and the drill bit can obtain more complete and representative samples, which helps to improve the accuracy of quality inspection. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of a sampling device for coal mining quality detection according to the utility model;
[0022] Figure 2 This is a partially disassembled schematic diagram of a sampling device for coal mining quality inspection according to the utility model;
[0023] Figure 3 This is a schematic diagram of a lifting device of a sampling device for coal mining quality inspection according to the utility model;
[0024] Figure 4 The utility model is a schematic diagram of a sampling device for coal mining quality detection.
[0025] In the figure: 1. bottom plate; 2. positioning hole; 3. self-locking pulley; 4. handle; 5. fixing frame; 6. slide groove; 7. control button; 8. lifting device; 9. sampling device; 81. first rotating motor; 82. threaded rod; 83. threaded lasso; 84. limit plate; 85. connecting block; 91. second rotating motor; 92. movable shaft; 93. sampler; 94. sampling groove; 95. drill bit. DETAILED DESCRIPTION
[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] See also Figure 1-4 , the utility model provides a technical solution:
[0030] A sampling device for coal mining quality inspection comprises a base plate 1, a positioning hole 2 which passes through the base plate 1 from top to bottom is provided in the middle of the upper end thereof, self-locking pulleys 3 are fixedly connected at the four corners of the lower end thereof, two handles 4 are fixedly connected at the left end thereof, a fixing frame 5 is fixedly connected to the left upper end thereof, a slide groove 6 is provided on the front inner wall surface and the rear inner wall surface thereof, a control button 7 is provided at the front end of the fixing frame 5, a lifting device 8 is fixedly connected to the upper end of the fixing frame 5, and a sampling device 9 is fixedly connected to the upper end of the lifting device 8.
[0031] In this embodiment, the lifting device 8 includes a first rotating motor 81, the output end of the first rotating motor 81 passes through the fixed frame 5 and is fixedly connected to a threaded rod 82, the outer surface of the threaded rod 82 is threadedly connected to a threaded lasso 83, the outer front and rear parts of the outer surface of the threaded lasso 83 are fixedly connected to a limiting plate 84, and the right side of the outer surface of the threaded lasso 83 is fixedly connected to a connecting block 85, the lower end of the first rotating motor 81 is fixedly connected to the middle part of the upper end of the fixed frame 5; the lower end of the threaded rod 82 is movably connected to the lower inner wall of the fixed frame 5 through a bearing; the two limiting plates 84 are both arranged in the two slide grooves 6; the first rotating motor 81 is electrically connected to the control button 7.
[0032] According to the above scheme, when the operator presses the control button 7, the first rotary motor 81 electrically connected thereto starts to start. The output end of the first rotary motor 81 drives the threaded rod 82 penetrating the fixed frame 5 to rotate. Since the lower end of the threaded rod 82 is movably connected to the lower inner wall of the fixed frame 5 through a bearing, the threaded rod 82 can stably rotate around its own axis. The threaded lasso 83 threadedly connected to the threaded rod 82 cannot rotate with the rotation of the threaded rod 82 because the front and rear limit plates 84 are restricted in the two slide grooves 6 on the inner wall of the fixed frame 5. Therefore, the threaded lasso 83 can only move up and down along the threaded rod 82. When the threaded rod 82 rotates clockwise, the threaded lasso 83 moves upward along the threaded rod 82; when the threaded rod 82 rotates counterclockwise, the threaded lasso 83 moves downward along the threaded rod 82, and the connecting block 85 on the right side of the outer surface of the threaded lasso 83 moves with the up and down movement of the threaded lasso 83, thereby driving other components connected thereto, such as the sampling device 9, to achieve the action of rising or falling, so as to achieve the purpose of adjusting the height.
[0033] In this embodiment, the sampling device 9 includes a second rotating motor 91, the output end of the second rotating motor 91 is fixedly connected to a movable shaft 92, the lower end of the movable shaft 92 is fixedly connected to a sampler 93, the outer surface of the sampler 93 is provided with a plurality of sampling grooves 94, the lower end of the sampler 93 is fixedly connected to a drill bit 95, the lower end of the second rotating motor 91 is fixedly connected to the upper right side of the connecting block 85; the plurality of sampling grooves 94 are distributed in a central ring array of the sampler 93.
[0034] Through the above scheme: after the lifting device 8 adjusts the sampling device 9 to a suitable sampling position, the second rotating motor 91 is started, and the output end of the second rotating motor 91 begins to rotate, driving the movable shaft 92 fixedly connected thereto to rotate. The lower end of the movable shaft 92 is connected to the sampler 93, so the sampler 93 also rotates, and the drill bit 95 at the lower end of the sampler 93 first contacts the coal seam, and drills into the coal seam during the rotation process, creating conditions for the sampler 93 to enter the coal seam. As the sampler 93 continues to rotate, since a number of sampling grooves 94 distributed in an annular array are opened on its outer surface, the surrounding coal will be drawn into the sampling grooves 94. Due to the annular array distribution of the sampling grooves 94, during the rotation sampling process, no matter what the angle of the sampler 93 is, coal can be evenly collected from all directions, thereby improving the efficiency and representativeness of the sampling. After the sampling is completed, the second rotating motor 91 is turned off, and the collected coal sample is taken out for subsequent detection and analysis.
[0035] It should be noted that the utility model is a sampling device for coal mining quality inspection. During use, first, the operator moves the entire device to a suitable sampling position through the handle 4 and the self-locking pulley 3 at the lower end of the bottom plate 1. When the sampling operation is ready, the control button 7 at the front end of the fixed frame 5 is pressed to start the first rotary motor 81. The output end of the first rotary motor 81 drives the threaded rod 82 to rotate. Since the threaded rod 82 is threadedly connected with the threaded lasso 83, and the limit plate 84 on the threaded lasso 83 is limited in the slide groove 6 on the inner wall of the fixed frame 5, the threaded lasso 83 can only move up and down along the threaded rod 82. The connecting block 85 on the right side of the threaded lasso 83 drives the sampling device 9 to rise or fall until the drill bit 95 passes through the positioning hole 2 downward to accurately adjust to the appropriate sampling height. After the height is adjusted, the second rotary motor 91 is started. The output end of the second rotary motor 91 drives the movable shaft 92 to rotate, so that the drill bit 95 at the lower end of the sampler 93 passes through the positioning hole 2 on the bottom plate 1 and drills into the underground coal seam. As the sampler 93 continues to rotate, the surrounding coal enters a plurality of sampling slots 94 distributed in a circular array on the outer surface of the sampler 93, thereby completing the coal sampling work.
[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A sampling device for coal mining quality detection, comprising a bottom plate (1), characterized in that: A positioning hole (2) is provided in the middle of the upper end of the base plate (1) and passes through the upper and lower parts. Self-locking pulleys (3) are fixedly connected at the four corners of the lower end of the base plate (1). Two handles (4) are fixedly connected to the left end of the base plate (1). A fixing frame (5) is fixedly connected to the left part of the upper end of the base plate (1). The front inner wall surface and the rear inner wall surface of the fixing frame (5) are provided with sliding grooves (6). A control button (7) is provided at the front end of the fixing frame (5). A lifting device (8) is fixedly connected to the upper end of the fixing frame (5). A sampling device (9) is fixedly connected to the upper end of the lifting device (8). The lifting device (8) comprises a first rotating motor (81), the output end of the first rotating motor (81) passes through the fixed frame (5) and is fixedly connected to a threaded rod (82), the outer surface of the threaded rod (82) is threadedly connected to a threaded lasso (83), the outer front and outer rear of the threaded lasso (83) are fixedly connected to a limiting plate (84), the outer surface of the threaded lasso (83) is fixedly connected to a connecting block (85) on the right side, and the lower end of the first rotating motor (81) is fixedly connected to the middle of the upper end of the fixed frame (5).
2. A sampling device for coal mining quality detection according to claim 1, characterized in that: The lower end of the threaded rod (82) is movably connected to the lower inner wall surface of the fixed frame (5) via a bearing.
3. A sampling device for coal mining quality detection according to claim 1, characterized in that: The two limiting plates (84) are both arranged in the two sliding grooves (6).
4. A sampling device for coal mining quality detection according to claim 1, characterized in that: The first rotating motor (81) is electrically connected to the control button (7).
5. A sampling device for coal mining quality detection according to claim 1, characterized in that: The sampling device (9) comprises a second rotating motor (91), the output end of the second rotating motor (91) is fixedly connected to a movable shaft (92), the lower end of the movable shaft (92) is fixedly connected to a sampler (93), the outer surface of the sampler (93) is provided with a plurality of sampling grooves (94), the lower end of the sampler (93) is fixedly connected to a drill bit (95), and the lower end of the second rotating motor (91) is fixedly connected to the upper right side of the connecting block (85).
6. A sampling device for coal mining quality detection according to claim 5, characterized in that: A plurality of the sampling slots (94) are distributed in a central annular array around the sampler (93).