A conveying device for coal sample testing
By using a servo motor-driven lead screw system and slider limit design, the problems of low automation and insufficient positioning accuracy in traditional coal sample conveying devices have been solved, achieving stable conveying and adaptability to multiple specifications, thereby improving the accuracy of test results and process efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU PANJIANG XINGUANG POWER GENERATION CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional coal sample conveying devices have low automation and insufficient positioning accuracy, making them unable to adapt to coal samples of different specifications and sizes. This leads to deviation and shaking during the conveying process, affecting the accuracy of test results.
The servo motor-driven lead screw system, combined with the design of slider, limit shaft, telescopic rod and spring, realizes stable sliding conveying of slider, and through the linkage of positioning mechanism and clamping plate, ensures stable clamping and positioning of coal samples of different specifications.
It improves the accuracy and efficiency of test results, reduces maintenance costs, is easy to operate, highly automated, adaptable to various sample specifications, and significantly improves the reliability of coal sample testing procedures.
Smart Images

Figure CN224312591U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal testing technology, specifically relating to a coal sample conveying device for analysis. Background Technology
[0002] In the field of coal quality testing, the transport and positioning of coal samples are crucial steps in the testing process. Traditional coal sample transport devices often suffer from low automation and insufficient positioning accuracy. Traditional transport devices struggle to accurately control the position and orientation of samples during transport, easily leading to sample shifting or shaking, which affects the accuracy of subsequent test results. Furthermore, some existing transport devices have complex structures, high maintenance costs, and are unable to adapt to coal samples of different specifications and sizes, limiting their application scope. Utility Model Content
[0003] The purpose of this invention is to provide a coal sample testing conveying device to solve the problems of poor sample conveying stability, low positioning accuracy, and inability to adapt to different specifications and sizes in the existing technology.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] This utility model provides a conveying device for coal sample testing, including a slide rail, an n-shaped support frame fixedly installed on one side of the slide rail, a servo motor installed at the end of the slide rail away from the n-shaped support frame, a slider slidably installed inside the slide rail, the servo motor connected to a lead screw, the lead screw threadedly connected to the slider, the lead screw rotatably connected to the slide rail, and a slide rod fixedly installed at the end of the slide rail away from the lead screw, the slide rod slidably connected to the slider.
[0006] In a further technical solution, a plurality of limiting shafts are rotatably connected to the slider one, a connecting rod is rotatably connected to the limiting shaft one, the other end of the connecting rod one is rotatably connected to the limiting shaft two, the limiting shaft two is rotatably connected to the slider two, a mounting plate is slidably connected to the top of the slider two, a plurality of limiting grooves are provided on the mounting plate, and the connecting rod one is rotatably connected to the limiting shaft three.
[0007] In a further technical solution, the limiting shaft is rotatably connected to a fixing block, the fixing block is connected to a telescopic rod, a spring is provided at the end of the fixing block near the telescopic rod, and a positioning mechanism is provided on the outer wall of the mounting plate.
[0008] In a further technical solution, the positioning mechanism includes several slide rails 2, which are fixedly connected to the top of the mounting plate, and a slider 3 is slidably connected inside the slide rails 2.
[0009] In a further technical solution, the slider three is fixedly connected to the telescopic rod two, the telescopic rod two is fixedly connected to the slide rail two, and the end of the slider three near the telescopic rod two is fixedly connected to the spring two, the spring two is fixedly connected to the slide rail two.
[0010] In a further technical solution, the slider three is fixedly connected to the limiting shaft four, and the limiting shaft four is fixedly connected to the clamping plate.
[0011] In a further technical solution, an elastic rubber pad is fixedly connected to the outer side of the clamping plate, and the telescopic rod three is fixedly connected to a section of the mounting plate near the telescopic rod three.
[0012] In a further technical solution, a tray is fixedly connected to the top of the telescopic rod three, and several connecting rods two are rotatably connected to the tray. The connecting rods two are rotatably connected to the limiting shaft four.
[0013] Beneficial effects:
[0014] This invention achieves automated sliding transport of slider one by driving a rotating shaft screw with a servo motor. The dual connection between the slide rod and the rotating shaft screw ensures the stability of the slider's movement. The positioning mechanism utilizes the telescopic rod two, spring two, and elastic rubber pads on the outer side of the clamping plate to stably clamp and position coal samples of different specifications. Combined with the linkage design of the mounting plate's limiting slide groove and the tray connecting rod two, it effectively avoids deviation and shaking during sample transport. This not only improves the accuracy of test results but also achieves adaptability to various sample specifications through structural optimization. It also has the advantages of simple operation, low maintenance cost, and high degree of automation, significantly improving the efficiency and reliability of the coal sample testing process. Attached Figure Description
[0015] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:
[0016] Figure 1 A schematic diagram of the overall structure of a coal sample testing conveying device provided in this embodiment of the present invention;
[0017] Figure 2 A schematic diagram of the internal structure of a coal sample testing conveying device provided in this embodiment of the present invention;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 A schematic diagram of the positioning mechanism of a coal sample testing conveying device provided in this embodiment of the present invention;
[0020] Figure 5A schematic diagram of the slide bar structure of a coal sample testing conveying device provided in an embodiment of this utility model.
[0021] in:
[0022] 1. Slide rail one; 101. N-shaped support frame; 102. Servo motor; 103. Rotary shaft screw; 104. Slide rod; 2. Slider one; 201. Slide plate; 202. Limiting shaft one; 203. Connecting rod one; 204. Limiting shaft two; 205. Slider two; 206. Mounting plate; 207. Limiting slide groove; 208. Limiting shaft three; 209. Fixing block; 210. Telescopic rod one; 211. Spring; 3. Positioning mechanism; 301. Slide rail two; 302. Slider three; 303. Telescopic rod two; 304. Spring two; 305. Limiting shaft four; 306. Clamping plate; 307. Elastic rubber pad; 308. Telescopic rod three; 309. Tray; 310. Connecting rod two. Detailed Implementation
[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Example:
[0025] like Figures 1 to 5 As shown in the figure, this utility model embodiment provides a conveying device for coal sample testing, including a slide rail 1. An n-shaped support frame 101 is fixedly installed on one side of the slide rail 1. A servo motor 102 is provided at the end of the slide rail 1 away from the n-shaped support frame 101. A slider 2 is slidably installed inside the slide rail 1. The servo motor 102 is connected to a rotating shaft screw 103. The rotating shaft screw 103 is threadedly connected to the slider 2. The rotating shaft screw 103 is rotatably connected to the slide rail 1. A slide rod 104 is fixedly installed at the end of the slide rail 1 away from the rotating shaft screw 103. The slide rod 104 is slidably connected to the slider 2.
[0026] This embodiment of the invention provides a stable support structure for the entire device by welding and fixing the n-shaped support frame 101 to one side of the slide rail 1. A servo motor 102 is installed at the end of the slide rail 1 away from the n-shaped support frame 101, ensuring that the output shaft of the servo motor 102 is aligned with the axis of the lead screw 103. The servo motor 102 is then connected to the lead screw 103. A sliding groove matching the slider 2 is machined inside the slide rail 1, and the slider 2 is installed in this groove, allowing it to slide freely within the slide rail 1. One end of the lead screw 103 is connected to the servo motor 102, and the other end is rotatably connected to the slide rail 1 via a bearing or other rotating component, ensuring that the lead screw 103 can rotate flexibly. Meanwhile, at the end of slide rail 1 furthest from the pivot screw 103, a sliding rod 104 is horizontally fixed by a fastener. The sliding rod 104 passes through a corresponding through hole on slider 2, allowing slider 2 to slide on the sliding rod 104. The sliding rod 104 is parallel to the pivot screw 103. The servo motor 102, as the power source, converts the rotational motion into linear motion of slider 2 through the pivot screw 103, achieving precise movement of slider 2 on slide rail 1. The sliding connection between the sliding rod 104 and slider 2 provides guidance and stability, effectively limiting the swaying and deviation of slider 2 during movement, improving the accuracy and stability of slider 2's movement, and thus ensuring that the conveying device can smoothly and reliably transport coal samples.
[0027] In one feasible implementation scheme, such as Figure 2 and Figure 3As shown, several limiting shafts 202 are rotatably connected to the slider 2. A connecting rod 203 is rotatably connected to each limiting shaft 202. The other end of the connecting rod 203 is rotatably connected to a limiting shaft 204. A slider 205 is rotatably connected to the limiting shaft 204. A mounting plate 206 is slidably connected to the top of the slider 205. Several limiting grooves 207 are provided on the mounting plate 206. A limiting shaft 208 is rotatably connected to each connecting rod 203. By installing several limiting shafts 202 on the slider 2, the limiting shafts 202 can rotate freely relative to the slider 2. A connecting rod 203 is installed on each limiting shaft 202, with one end of the connecting rod 203 rotatably connected to the limiting shaft 202. The other end of connecting rod 203 is rotatably connected to limiting shaft 204, which is fixedly mounted on slider 205, allowing slider 205 to be rotatably connected to slider 205 via connecting rod 203. A sliding track matching mounting plate 206 is machined on the top of slider 205, allowing mounting plate 206 to slide on slider 205. Several limiting grooves 207 are machined on mounting plate 206 to limit the movement of connecting rod 203. Simultaneously, limiting shaft 208 is installed at a suitable position on connecting rod 203, allowing limiting shaft 208 to rotate relative to connecting rod 203. The coordination of limiting shaft 202, connecting rod 203, and limiting shaft 204 enables the linkage movement between slider 205 and slider 2. When slider 2 moves on slide rail 1, it can drive slider 205 and mounting plate 206 to move accordingly via connecting rod 203. The limiting groove 207 on mounting plate 206 restricts the movement trajectory of connecting rod 203, allowing mounting plate 206 to slide stably on slider 205. At the same time, the setting of limiting shaft 208 provides a rotation fulcrum for subsequent connection with other components, increasing the flexibility and adjustability of the device and enabling it to adapt to different transportation and testing needs.
[0028] In one feasible implementation scheme, such as Figure 2 and Figure 3As shown, the limiting shaft 208 is rotatably connected to a fixing block 209, and the fixing block 209 is connected to a telescopic rod 210. A spring 211 is provided at one end of the fixing block 209 near the telescopic rod, and a positioning mechanism 3 is provided on the outer wall of the mounting plate 206. By mounting the limiting shaft 208 on the fixing block 209, the fixing block 209 can rotate freely relative to the limiting shaft 208. One side of the fixing block 209 is connected to one end of the telescopic rod 210. At the end of the fixing block 209 near the telescopic rod 210, a spring 211 is installed. One end of the spring 211 is connected to the fixing block 209, and the other end is connected to an adjacent fixing structure, so that the spring 211 can apply a certain elastic force to the fixing block 209. A positioning mechanism 3 is provided on the outer side of the mounting plate 206, which is used to precisely define the position of the mounting plate 206. The combined use of telescopic rod 210 and spring 211 allows the fixed block 209 to extend, retract, and move elastically within a certain range, thereby buffering and adjusting the movement of connecting rod 203 and reducing impact and vibration during movement. The positioning mechanism 3 accurately determines the position of mounting plate 206, ensuring its stability during transport, avoiding positional deviations, and improving the accuracy of coal sample transport and testing.
[0029] In one feasible implementation scheme, such as Figure 2 and Figure 3 As shown, the positioning mechanism 3 includes several slide rails 301, which are fixedly connected to the top of the mounting plate 206. A slider 302 is slidably connected within each slide rail 301. By fixing several slide rails 301 to the top of the mounting plate 206, the slide rails 301 are parallel to each other and aligned with the length direction of the mounting plate 206. Inside each slide rail 301, a sliding groove matching the slider 302 is machined. The slider 302 is installed within the sliding groove of the slide rail 301, allowing it to slide freely within the slide rail 301. The slide rails 301 provide a stable sliding track for the slider 302, enabling it to move precisely along the direction of the slide rails 301 on the mounting plate 206. By setting multiple slide rails 301 and sliders 302, simultaneous positioning and conveying of multiple coal samples can be achieved, improving the working efficiency and practicality of the device.
[0030] In one feasible implementation scheme, such as Figures 2 to 4As shown, the slider 302 is fixedly connected to a telescopic rod 303, which is fixedly connected to a slide rail 301. A spring 304 is fixedly connected to one end of the slider 302 near the telescopic rod 303, and the spring 304 is fixedly connected to the slide rail 301. By connecting one side of the slider 302 to one end of the telescopic rod 303, and fixing the other end of the telescopic rod 303 to the end of the slide rail 301, the telescopic rod 303 can be an electric or hydraulic telescopic rod, etc., to achieve active driving of the slider 302. A spring 304 is installed at the end of the slider 302 near the telescopic rod 303. One end of the spring 304 is connected to the slider 302, and the other end is connected to the fixed end of the slide rail 301. This allows the spring 304 to generate elastic force when the slider 302 moves, providing cushioning and resetting for the movement of the slider 302. The telescopic rod 2 303 can actively control the position of the slider 302 on the slide rail 2 301, achieving precise positioning and adjustment. The spring 2 304 plays a role when the slider 302 is subjected to external impact or needs to be reset. It can absorb impact energy, reduce vibration, and ensure that the slider 302 can return to its initial position when there is no external force, thus improving the stability and reliability of the device in conveying coal samples.
[0031] In one feasible implementation scheme, such as Figures 2 to 4 As shown, the slider 302 is fixedly connected to the limiting shaft 4 305, and the limiting shaft 4 305 is fixedly connected to the clamping plate 306. By fixing the limiting shaft 4 305 to the slider 302, the limiting shaft 4 305 and the slider 302 are rigidly connected. The clamping plate 306 is installed on the limiting shaft 4 305, allowing the clamping plate 306 to rotate freely relative to the limiting shaft 4 305 for clamping the coal sample. The limiting shaft 4 305 connects the clamping plate 306 to the slider 302, allowing the clamping plate 306 to move along with the slider 302 on the slide rail 2 301. The rotating connection of the clamping plate 306 can adapt to coal samples of different shapes and sizes, and can automatically adjust the angle during clamping to ensure stable clamping of the sample and prevent the sample from slipping or falling during transportation.
[0032] In one feasible implementation scheme, such as Figure 4As shown, an elastic rubber pad 307 is fixedly connected to the outer side of the clamping plate 306, and a telescopic rod 308 is fixedly connected to a section of the mounting plate 206 near the telescopic rod 308. By installing the elastic rubber pad 307 on the outer side of the clamping plate 306, the elastic rubber pad 307 provides good cushioning and anti-slip properties. The telescopic rod 308 is installed at one end of the mounting plate 206 near the telescopic rod 308. The elastic rubber pad 307 increases the friction between the clamping plate 306 and the coal sample, preventing damage to the sample during clamping and improving clamping stability. The installation of the telescopic rod 308 provides support and a driving structure for subsequent components such as the tray 309, allowing adjustment of the height and position of the tray 309 as needed to adapt to different testing equipment and operational requirements.
[0033] In one feasible implementation scheme, such as Figure 5 As shown, a tray 309 is fixedly connected to the top of the telescopic rod 308. Several connecting rods 310 are rotatably connected to the tray 309, and these connecting rods 310 are rotatably connected to a limiting shaft 305. The tray 309, mounted on the top of the telescopic rod 308, is used to hold coal samples. Several connecting rods 310 are mounted on the tray 309 via bearings and other rotating components, allowing the connecting rods 310 to rotate freely relative to the tray 309. The other end of each connecting rod 310 is rotatably connected to the limiting shaft 305. The tray 309 can move vertically up and down via the telescopic rod 308, facilitating docking with testing equipment of different heights. Connecting rod 2 310 connects tray 309 to limiting shaft 4 305. When slider 3 302 moves on slide rail 2 301, it can drive tray 309 and sample to move horizontally through connecting rod 2 310. At the same time, the rotation connection of tray 309 allows the sample to be adjusted in angle within a certain range, which improves the flexibility and adaptability of the device and ensures that coal samples can be accurately and stably delivered to the testing position.
[0034] In this embodiment of the utility model, a coal sample testing conveying device is implemented by welding an n-shaped support frame 101 to one side of a slide rail 1, forming a stable support structure and ensuring that the entire device is installed horizontally and firmly. A servo motor 102 is fixedly installed at the end of the slide rail 1 away from the n-shaped support frame 101, ensuring that the output shaft of the servo motor 102 is strictly aligned with the axis of the lead screw 103. The servo motor 102 and the lead screw 103 are connected via a coupling. The other end of the lead screw 103 is then rotatably connected to the slide rail 1 via a bearing seat, allowing the lead screw 103 to rotate freely within the slide rail 1. A sliding groove matching a slider 2 is machined inside the slide rail 1, and the slider 2 is embedded in the sliding groove. Simultaneously, a slide rod 104 is horizontally installed at the end of the slide rail 1 away from the lead screw 103 via a fixing component, allowing the slide rod 104 to pass through a through hole on the slider 2, ensuring that the slide rod 104 is parallel to the lead screw 103. At this time, slider 2 can slide within slide rail 1 along the guide direction of the lead screw 103 and slide rod 104. Several limiting shafts 202 are mounted on slider 2 via bearings, allowing the limiting shafts 202 to rotate freely. A connecting rod 203 is hinged to each limiting shaft 202, and the other end of the connecting rod 203 is fixedly connected to slider 205 via limiting shaft 204, forming a rotating pair. A sliding track is machined on the top of slider 205, and mounting plate 206 is placed on the track, allowing mounting plate 206 to slide along the top of slider 205. Several limiting grooves 207 are machined on mounting plate 206, with the groove direction consistent with the sliding direction of mounting plate 206. A limiting shaft 208 is mounted in the middle of connecting rod 203 via bearings, and the limiting shaft 208 is embedded in the limiting groove 207, restricting the movement trajectory of connecting rod 203 and ensuring the stability of mounting plate 206 during sliding. Several parallel slide rails 301 are fixed to the top of the mounting plate 206, with the length of the slide rails 301 aligned with the mounting plate 206. A slider 302 is slidably installed within each slide rail 301, allowing free movement along the slide rail 301. One end of the slider 302 is fixedly connected to a telescopic rod 303, and the other end of the telescopic rod 303 is fixed to the end of the slide rail 301. Simultaneously, a spring 304 is installed on the side of the slider 302 near the telescopic rod 303, with both ends of the spring 304 connected to the fixed ends of the slider 302 and the slide rail 301 respectively, forming an elastic buffer structure. A limiting shaft 305 is fixed to the slider 302, with a clamping plate 306 hinged to the outside of the limiting shaft 305, allowing the clamping plate 306 to rotate around the limiting shaft 305. An elastic rubber pad 307 is attached to the inside of the clamping plate 306 for cushioning and anti-slip when clamping the coal sample. Telescopic rod 308 is fixed near the end of mounting plate 206. A tray 309 is installed on the top of telescopic rod 308. The tray 309 is used to hold coal samples.Several connecting rods 310 are mounted on the bottom of tray 309 via bearings. The other end of the connecting rods 310 is hinged to the limiting shaft 305, allowing tray 309 to be linked with slider 302 via the connecting rods 310. When slider 302 moves on slide rail 301, it can drive tray 309 to move horizontally via the connecting rods 310. At the same time, tray 309 can be vertically raised and lowered with telescopic rod 308. When a coal sample is placed on tray 309, telescopic rod 303 is activated, pushing slider 302 to move on slide rail 301, bringing clamp 306 closer to the sample. The elastic force of spring 304 pushes clamp 306 to clamp the sample, and elastic pad 307 ensures stable clamping without damaging the sample. Servo motor 102 starts, driving the lead screw 103 to rotate. Through threaded transmission, slider 2 moves linearly along slide rail 1. Slider 2, via connecting rod 203, drives slider 205 and mounting plate 206 to move synchronously. Limiting groove 207 restricts the movement trajectory of connecting rod 203, ensuring smooth sliding of mounting plate 206, thereby moving tray 309 and sample horizontally to the testing position. When the sample reaches the designated position, telescopic rod 308 starts, and tray 309 rises and falls with telescopic rod 308, connecting with the inlet of the testing equipment. Subsequently, telescopic rod 303 retracts, spring 304 resets, and clamp 306 releases the sample, completing sample transport. During the movement, springs 211 and 304 provide buffering for the movement of connecting rod 203 and slider 302, reducing vibration. After transport, all components reset under spring force and telescopic rod drive, ready for the next transport.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A delivery device for coal sample testing, characterized by: The slide rail (1) is fixedly mounted on one side by an n-shaped support frame (101). A servo motor (102) is provided at the end of the slide rail (1) away from the n-shaped support frame (101). A slider (2) is slidably mounted inside the slide rail (1). The servo motor (102) is connected to a pivot screw (103). The pivot screw (103) is threadedly connected to the slider (2). The pivot screw (103) is rotatably connected to the slide rail (1). A slide rod (104) is fixedly mounted at the end of the slide rail (1) away from the pivot screw (103). The slide rod (104) is slidably connected to the slider (2).
2. A delivery device for use in the analysis of a coal sample according to claim 1, characterised in that: The slider 1 (2) is rotatably connected to several limiting shafts 1 (202), the limiting shaft 1 (202) is rotatably connected to a connecting rod 1 (203), the other end of the connecting rod 1 (203) is rotatably connected to a limiting shaft 2 (204), the limiting shaft 2 (204) is rotatably connected to a slider 2 (205), the top of the slider 2 (205) is slidably connected to a mounting plate (206), the mounting plate (206) is provided with several limiting grooves (207), and the connecting rod 1 (203) is rotatably connected to a limiting shaft 3 (208).
3. A delivery device for use in the analysis of a coal sample according to claim 2, wherein: The limiting shaft three (208) is rotatably connected to a fixing block (209), the fixing block (209) is connected to a telescopic rod one (210), a spring one (211) is provided at one end of the fixing block (209) near the telescopic rod, and a positioning mechanism (3) is provided on the outer wall of the mounting plate (206).
4. A delivery device for use in the analysis of a coal sample according to claim 3, wherein: The positioning mechanism (3) includes several slide rails (301), which are fixedly connected to the top of the mounting plate (206), and a slider (302) is slidably connected inside the slide rails (301).
5. A delivery device for use in the analysis of a coal sample according to claim 4, characterised in that: The slider three (302) is fixedly connected to the telescopic rod two (303), the telescopic rod two (303) is fixedly connected to the slide rail two (301), and the end of the slider three (302) near the telescopic rod two (303) is fixedly connected to the spring two (304), the spring two (304) is fixedly connected to the slide rail two (301).
6. A delivery device for use in the testing of coal samples as claimed in claim 5 wherein: The slider three (302) is fixedly connected to the limiting shaft four (305), and the limiting shaft four (305) is fixedly connected to the clamping plate (306).
7. A delivery device for use in the testing of coal samples as claimed in claim 6 wherein: An elastic rubber pad (307) is fixedly connected to the outside of the clamping plate (306), and a section of the mounting plate (206) near the telescopic rod three (308) is fixedly connected to the telescopic rod three (308).
8. A delivery device for use in the testing of coal samples as claimed in claim 7 wherein: The top of the telescopic rod three (308) is fixedly connected to a tray (309), and the tray (309) is rotatably connected to several connecting rods two (310), and the connecting rods two (310) are rotatably connected to the limiting shaft four (305).