A coal rapid sample preparation device
By using a power source to drive the telescopic shaft and a split bottom mold design, combined with a limit rod spring structure, the problem of time-consuming and labor-intensive sample preparation in existing coal sample preparation equipment has been solved, achieving rapid and accurate sample preparation and environmental cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAORUI LASER TECH (CHANGZHOU) CO LTD
- Filing Date
- 2024-11-08
- Publication Date
- 2026-07-21
AI Technical Summary
Existing coal sample preparation equipment is inadequate in terms of sample preparation efficiency and accuracy, lacking a fast-response power source and a precise positioning system, resulting in a time-consuming and labor-intensive sample preparation process.
The system uses a power source to drive the telescopic shaft, which in turn drives the upper pressure plate to move up and down rapidly. Combined with the split bottom mold design and the limit rod spring structure, it ensures the rapid vertical compaction and precise positioning of the upper mold. The suction component removes dust, enabling rapid and accurate sample preparation.
It enables rapid and efficient preparation of coal samples, ensures consistent sample quality, and improves work efficiency and environmental cleanliness.
Smart Images
Figure CN224535567U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal sample preparation equipment technology, and in particular to a rapid coal sample preparation device. Background Technology
[0002] Existing coal sample preparation equipment has limitations in terms of sample preparation efficiency and accuracy. These devices often lack a fast-responding power source and a precise positioning system, making the sample preparation process both time-consuming and labor-intensive. Therefore, coal testing laboratories, mines and coal processing enterprises, environmental monitoring stations, and other similar locations urgently need equipment that can quickly and accurately prepare coal samples while being easy to operate and clean, in order to improve work efficiency and ensure sample quality. Summary of the Invention
[0003] This invention overcomes the shortcomings of the prior art and provides a rapid coal sample preparation device.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rapid coal sample preparation device, including a workbench, a support platform set on the workbench, fixed shafts set on both sides of the support platform, a telescopic shaft set around the fixed shaft, an upper pressure plate set on the telescopic shaft, and an installation plate set at the bottom of the upper pressure plate.
[0005] A bottom mold is located at the center of the support platform; the bottom mold is a cylindrical container.
[0006] The upper pressure plate is provided with a set of first positioning holes, the upper end of the fixed shaft passes through the positioning holes and is slidably connected with the upper pressure plate; the upper pressure plate is fixedly connected to the upper end of the telescopic shaft.
[0007] The mounting plate has an upper mold at the bottom center.
[0008] In a preferred embodiment of this utility model, the center of the support platform is recessed downward to form a cylindrical limiting groove, and the cross-section of the limiting groove matches the bottom surface of the bottom mold.
[0009] In a preferred embodiment of this utility model, the bottom mold includes a lower base plate disposed in a limiting groove, an upper base plate fixed on the lower base plate, a set of semi-circular steel plates sleeved on the lower base plate, a limiting ring sleeved on the semi-circular steel plates, and a limiting member placed on the limiting ring; the outer diameter of the lower base plate is larger than the outer diameter of the upper base plate, and the cross section of the upper base plate is equal to the cross section of the upper mold; the set of semi-circular steel plates are bonded together to form a cylindrical column, and the inner diameter of the cylindrical column matches that of the upper mold.
[0010] In a preferred embodiment of the present invention, the device further includes a suction component disposed on the workbench, a dust collection box disposed on one side of the workbench, and a flexible hose connecting the suction component and the dust collection box.
[0011] In a preferred embodiment of the present invention, the device further includes a power source disposed below the worktable, the power source being poweredly connected to the telescopic shaft.
[0012] In a preferred embodiment of the present invention, the device further includes a control console disposed in front of the workbench, the control console being connected to the power source via a signal.
[0013] In a preferred embodiment of this utility model, a plurality of limiting rods are provided at the bottom of the mounting plate on the periphery of the upper mold, and a spring is sleeved on the periphery of each limiting rod; one end of the spring is connected to the mounting plate, and the other end is connected to the limiting plate; a second positioning hole is provided in the center of the limiting plate, and a plurality of third positioning holes are provided on the periphery of the second positioning hole; the inner diameter of the second positioning hole matches the diameter of the upper mold, the inner diameter of the third positioning hole matches the diameter of the limiting hole, and the limiting plate is slidably connected to the upper mold.
[0014] In a preferred embodiment of this utility model, a plurality of fourth positioning holes are provided on the support platform on the periphery of the bottom mold, and the inner diameter of the fourth positioning holes matches the diameter of the limiting rod.
[0015] In a preferred embodiment of this utility model, the top of the fixed shaft extends radially outward to form an annular limiting step; the outer diameter of the limiting step is larger than the inner diameter of the first positioning hole.
[0016] This utility model solves the defects existing in the background technology, and has the following beneficial effects:
[0017] (1) This utility model uses a power source set below the workbench to drive the telescopic shaft to move up and down. The telescopic shaft cooperates with the fixed shaft to drive the upper pressure plate set on the telescopic shaft to move up and down quickly, thereby driving the upper mold to fall and rise quickly, so that the upper mold can vertically compact the sample.
[0018] (2) The bottom mold of this utility model, located at the center of the support platform, is a detachable cylindrical container, including a lower base plate disposed in a limiting groove, an upper base plate fixed on the lower base plate, a set of semi-circular steel plates sleeved on the lower base plate, a limiting ring sleeved on the semi-circular steel plates, and a limiting component placed on the limiting ring. The bottom mold of this utility model adopts the above-mentioned split design, making sample removal more convenient and quick.
[0019] (3) This utility model includes several limiting rods located at the bottom of the mounting plate around the upper mold, springs sleeved on the limiting rods, and a limiting plate fixed to the springs. When the upper mold is subjected to pressure, the springs compress and store energy; when the upper mold needs to be reset or lifted after pressing, the springs release the stored energy, helping the upper mold to quickly return to its initial position. The springs not only provide cushioning but also help the upper mold to reset quickly. The limiting plate has a second positioning hole in the center and several third positioning holes around the second positioning hole. The inner diameter of the second positioning hole matches the diameter of the upper mold, and the inner diameter of the third positioning holes matches the diameter of the limiting hole, allowing the limiting plate to slide with the upper mold, ensuring accurate positioning of the upper mold during pressing and ejection of the sample. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0021] Figure 1 This is a schematic diagram of the structure of a rapid coal sample preparation device provided by this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the bottom mold provided by this utility model;
[0023] Figure 3 This is a top view of the bottom mold provided by this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the mounting plate provided by this utility model;
[0025] In the diagram: 1. Workbench; 2. Support platform; 3. Fixed shaft; 4. Telescopic shaft; 5. Upper pressure plate; 6. Mounting plate; 7. Bottom mold; 8. Upper mold; 9. Limiting groove; 10. Lower chassis; 11. Upper chassis; 12. Semi-circular steel plate; 13. Limiting ring; 14. Limiting component; 15. Suction component; 16. Dust collection box; 17. Flexible hose; 18. Power source; 19. Control console; 20. Limiting rod; 21. Spring; 22. Limiting plate; 23. Limiting step. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0027] This invention is applicable to the sample preparation stage before quality testing of coal or other similar materials.
[0028] like Figure 1As shown, a rapid coal sample preparation device includes a workbench 1, a support platform 2 set on the workbench 1, fixed shafts 3 set on both sides of the support platform 2, telescopic shafts 4 set around the fixed shafts 3, an upper pressure plate 5 set on the telescopic shafts 4, and an installation plate 6 set at the bottom of the upper pressure plate 5.
[0029] A bottom mold 7 is located at the center of the support platform 2; the bottom mold 7 is a cylindrical container;
[0030] The upper pressure plate 5 is provided with a set of first positioning holes, the upper end of the fixed shaft 3 passes through the positioning holes and is slidably connected with the upper pressure plate 5; the upper pressure plate 5 is fixedly connected with the upper end of the telescopic shaft 4.
[0031] The mounting plate 6 has an upper mold 8 at its bottom center.
[0032] The fixed shaft 3 is used to fix and guide the vertical movement of the upper pressure plate 5. The telescopic shaft 4 cooperates with the fixed shaft 3 and drives the upper pressure plate 5 to move up and down by telescopic movement, thereby driving the mounting plate 6 and the upper mold 8 to fall, so as to achieve vertical compaction of the sample.
[0033] like Figure 2 As shown, the center of the support platform 2 is recessed downward to form a cylindrical limiting groove 9. The cross-section of the limiting groove 9 matches the bottom surface of the bottom mold 7, so that the bottom mold 7 can be accurately placed on the support platform 2.
[0034] like Figure 2 , Figure 3 As shown, the bottom mold 7 includes a lower base plate 10 disposed within a limiting groove 9, an upper base plate 11 fixed on the lower base plate 10, a set of semi-circular steel plates 12 sleeved on the lower base plate 10, a limiting ring 13 sleeved on the semi-circular steel plates 12, and a limiting element 14 placed on the limiting ring 13. The outer diameter of the lower base plate 10 is larger than the outer diameter of the upper base plate 11, and the cross-section of the upper base plate 11 is equal to the cross-section of the upper mold 8. The set of semi-circular steel plates 12 are fitted together to form a cylindrical shape, and the inner diameter of the cylindrical shape matches that of the upper mold 8. The bottom mold 7 is a detachable cylindrical container. The limiting ring 13 can be a buckle, and the limiting element 14 can be a pin. The tightening or loosening of the pin controls the shrinking or expanding of the inner diameter of the buckle, facilitating the molding and removal of coal samples.
[0035] This invention is used for the preparation of coal samples, especially for rapidly obtaining standardized coal samples during coal quality analysis and testing.
[0036] like Figure 1 As shown, the device also includes a suction component 15 mounted on the workbench 1, a dust collection box 16 mounted on one side of the workbench 1, and a flexible hose 17 connecting the suction component 15 and the dust collection box 16, for removing dust generated during sample preparation and maintaining a clean working environment.
[0037] like Figure 1As shown, the device also includes a power source 18 located below the worktable 1. The power source 18 is powered by the telescopic shaft 4 and controls the movement of the telescopic shaft 4. The power source 18 can be one of an induction motor, a hydraulic cylinder, or a pneumatic cylinder.
[0038] like Figure 1 As shown, the device also includes a control console 19 located in front of the workbench 1, which is connected to the power source 18 via a signal connection. The operator can send commands through the control console 19 to control the operation of the power source 18.
[0039] like Figure 1 , Figure 4 As shown, the bottom of the mounting plate 6 is provided with several limiting rods 20 around the upper mold 8, and each limiting rod 20 is fitted with a spring 21 around its periphery. One end of the spring 21 is connected to the mounting plate 6, and the other end is connected to a limiting plate 22. A second positioning hole is provided in the center of the limiting plate 22, and several third positioning holes are provided around the second positioning hole. The inner diameter of the second positioning hole matches the diameter of the upper mold 8, and the inner diameter of the third positioning hole matches the diameter of the limiting hole 9. The limiting plate 22 is slidably connected to the upper mold 8. Through the cooperation of the spring 21 and the limiting rods 20, and the positioning of the limiting plate 22, the precise positioning of the upper mold is ensured when pressing and ejecting the sample.
[0040] like Figure 1 As shown, the side cross-section of the upper mold 8 is T-shaped.
[0041] like Figure 1 As shown, several fourth positioning holes are provided on the support platform 2 around the bottom mold 7. The inner diameter of the fourth positioning holes matches the diameter of the limiting rod 20 and is used to fix the position of the limiting rod 20 when it falls.
[0042] like Figure 1 As shown, the top of the fixed shaft 3 extends radially outward to form an annular limiting step 23; the outer diameter of the limiting step 23 is larger than the inner diameter of the first positioning hole, thus limiting the axial displacement of the upper pressure plate 5.
[0043] In use, the bottom mold 7 containing the coal powder sample is first placed into the cylindrical limiting groove 9 in the center of the support platform 2, ensuring that the lower base 10 of the bottom mold 7 is stably placed in the limiting groove 9, and that the bottom surface of the upper base 11 is flush with the top of the limiting groove 9, so as to ensure that the bottom mold 7 will not shift during the pressing process. Next, the equipment is started by the control console 19 located in front of the workbench 1. At this time, the power source 18 starts working, driving the telescopic shaft 4 to move downward, which in turn drives the upper pressure plate 5 fixed to the telescopic shaft 4 to drive the mounting plate 6, thereby causing the upper mold 8 at the bottom center of the mounting plate 6 to move downward.
[0044] The upper mold 8 enters the lower mold 7, applying pressure to the coal sample and compacting it into a cake shape. During this process, several limiting rods 20 located around the upper mold 8 at the bottom of the mounting plate 6 and springs 21 sleeved on the limiting rods 20 provide a buffering effect, ensuring that the upper mold 8 can smoothly press the sample. At the same time, the sliding connection between the limiting plate 22 and the upper mold 8 ensures the vertical movement accuracy of the upper mold 8. After pressing is completed, the telescopic shaft 4 drives the upper pressure plate 5 and its components to return to their original position, and the upper mold 8 then leaves the lower mold 7. At this time, the elastic force of the spring 21 helps the upper mold 8 quickly return to its initial position.
[0045] Next, the bottom mold 7 is removed from the limiting groove 9. Since the bottom mold 7 adopts a split design, the semi-circular steel plate 12 can be easily disassembled, thus facilitating the removal of the pressed coal sample. After removing the sample, it is necessary to clean the residue on the bottom mold 7 and the workbench 1. The dust is sucked into the dust collection box 16 using the suction component 15 and the connected flexible hose 17 set on the workbench 1 to ensure a clean working environment.
[0046] If further sample preparation is needed, the above steps can be repeated until all samples are prepared. Through this series of steps, this invention achieves rapid and efficient preparation of coal samples, ensuring sample consistency and quality, while also improving work efficiency and safety.
[0047] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A rapid coal sample preparation device, characterized in that, It includes a worktable (1), a support platform (2) set on the worktable (1), a fixed shaft (3) set on both sides of the support platform (2), a telescopic shaft (4) set around the fixed shaft (3), an upper pressure plate (5) set on the telescopic shaft (4), and a mounting plate (6) set at the bottom of the upper pressure plate (5); The support platform (2) has a bottom mold (7) at its center; the bottom mold (7) is a cylindrical container; The upper pressure plate (5) is provided with a set of first positioning holes, the upper end of the fixed shaft (3) passes through the positioning holes and is slidably connected with the upper pressure plate (5); the upper pressure plate (5) is fixedly connected with the upper end of the telescopic shaft (4); The mounting plate (6) has an upper mold (8) at its bottom center.
2. The rapid coal sample preparation device according to claim 1, characterized in that, The center of the support platform (2) is recessed downward to form a cylindrical limiting groove (9), and the cross section of the limiting groove (9) matches the bottom surface of the bottom mold (7).
3. The rapid coal sample preparation device according to claim 2, characterized in that, The bottom mold (7) includes a lower base plate (10) disposed in the limiting groove (9), an upper base plate (11) fixed on the lower base plate (10), a set of semi-circular steel plates (12) sleeved on the lower base plate (10), a limiting ring (13) sleeved on the semi-circular steel plates (12), and a limiting member (14) placed on the limiting ring (13); the outer diameter of the lower base plate (10) is larger than the outer diameter of the upper base plate (11), and the cross section of the upper base plate (11) is equal to the cross section of the upper mold (8); the set of semi-circular steel plates (12) are fitted together to form a cylindrical column, and the inner diameter of the cylindrical column matches the upper mold (8).
4. The rapid coal sample preparation device according to claim 3, characterized in that, The device also includes a suction component (15) disposed on the workbench (1), a dust collection box (16) disposed on one side of the workbench (1), and a flexible hose (17) connecting the suction component (15) and the dust collection box (16).
5. A rapid coal sample preparation device according to claim 4, characterized in that, The device also includes a power source (18) located below the workbench (1), which is powered to the telescopic shaft (4).
6. The rapid coal sample preparation device according to claim 5, characterized in that, The device also includes a control console (19) located in front of the workbench (1), the control console (19) being signal-connected to the power source (18).
7. The rapid coal sample preparation device according to claim 1, characterized in that, The mounting plate (6) has several limiting rods (20) at its bottom, located around the upper mold (8). Each limiting rod (20) is fitted with a spring (21) around its periphery. One end of the spring (21) is connected to the mounting plate (6), and the other end is connected to a limiting plate (22). The limiting plate (22) has a second positioning hole in its center, and several third positioning holes are provided around the second positioning hole. The inner diameter of the second positioning hole matches the diameter of the upper mold (8), and the inner diameter of the third positioning hole matches the diameter of the limiting hole (9). The limiting plate (22) is slidably connected to the upper mold (8).
8. A rapid coal sample preparation device according to claim 7, characterized in that, A plurality of fourth positioning holes are provided on the support platform (2) around the bottom mold (7), and the inner diameter of the fourth positioning holes matches the diameter of the limiting rod (20).
9. A rapid coal sample preparation device according to claim 1, characterized in that, The top of the fixed shaft (3) extends radially outward to form an annular limiting step (23); the outer diameter of the limiting step (23) is larger than the inner diameter of the first positioning hole.