Rock sample breaking device for detection analysis

Abstract

This application provides a rock sample crushing device for testing and analysis, including a shell, a feed bin, a crushing mechanism, a motor, a drive assembly, a storage bin, and a crushing assembly. The feed bin is fixed to the top of the shell, and the built-in crushing assembly performs preliminary crushing of the rock sample. The crushing mechanism installed inside the shell performs secondary crushing of the sample after preliminary crushing. The input end of the drive assembly is connected to the output end of the motor, synchronously driving the crushing assembly and the crushing mechanism to achieve linkage operation. The crushing mechanism includes a crushing bin, symmetrically fixed upper crushing jaws, and rotating lower crushing jaws, combined with a guide component to ensure smooth material flow. The lower crushing jaws are equipped with a filter screen and crushing jaws, which, together with the filter holes, achieve efficient particle screening and re-crushing, avoiding secondary compaction. The storage bin is slidably mounted on the shell for easy collection of the crushed sample. This device, through its staged crushing and linkage design, significantly improves crushing efficiency and particle size uniformity, operates stably and conveniently, and meets the high-precision requirements of testing and analysis.

Description

Technical Field

[0001] This application belongs to the field of rock crushing technology, and specifically relates to a rock sample crushing device for detection and analysis. Background Technology

[0002] In the analysis of rock samples (such as mineral composition analysis and geochemical testing), the original rock samples need to be crushed to a specific particle size (usually millimeters or micrometers) to meet the sample introduction requirements of laboratory instruments (such as X-ray fluorescence spectrometers and mass spectrometers). Traditional rock crushing techniques have the following limitations:

[0003] 1. Low crushing efficiency: Existing equipment mostly uses a single crushing structure (such as a jaw crusher or hammer crusher), making it difficult to achieve continuous operation of coarse and fine crushing. Samples need to be transferred to different equipment multiple times for processing, resulting in a cumbersome process, long processing time, and easy cross-contamination of samples.

[0004] 2. Uneven particle size and secondary compaction: Traditional crushing mechanisms lack a grading and screening mechanism, causing crushed particles to easily accumulate within the cavity and form secondary compaction (such as "over-crushing" or "caking") under subsequent compression, resulting in uneven particle size distribution. This necessitates manual sieving and rework, affecting analytical accuracy.

[0005] In summary, existing rock sample crushing devices have some shortcomings in terms of grading crushing mechanism, particle size screening efficiency, and material feeding smoothness, making it difficult to meet the requirements of high efficiency, uniformity, and ease of operation in the field of testing and analysis. Therefore, there is an urgent need for a rock sample crushing device that can achieve grading crushing and efficient screening to improve the accuracy and efficiency of testing and analysis. Utility Model Content

[0006] This application provides a rock sample crushing device for detection and analysis, which solves problems such as low crushing efficiency, uneven particle size, secondary compaction, clogging, and stability of rock samples.

[0007] To achieve the above objectives, this application provides a rock sample crushing device for testing and analysis, comprising a shell, a feed bin fixedly disposed on the top of the shell, a crushing component installed inside the feed bin, a pulverizing mechanism installed inside the shell, and a drive assembly also installed on the shell. The input end of the drive assembly is connected to the output end of a motor, and the drive assembly is used to drive the pulverizing mechanism and the crushing component. The pulverizing mechanism includes a pulverizing chamber fixedly disposed inside the shell. Two upper pulverizing jaws are symmetrically fixedly disposed inside the pulverizing chamber. Lower pulverizing jaws are rotatably disposed on the side of the two upper pulverizing jaws that are close to each other. Each lower pulverizing jaw includes a base plate, the bottom end of which is rotatably disposed on the pulverizing chamber and connected to the drive assembly. A guide is disposed at the top of the base plate, and the guide is installed at the end of the pulverizing chamber near the feed bin. Multiple pulverizing jaws are fixedly disposed on the side of the base plate near the upper pulverizing jaws, and a filter screen is formed on the base plate between two adjacent pulverizing jaws.

[0008] In one embodiment, the crushing area between the crushing upper jaw and the crushing lower jaw gradually narrows from top to bottom.

[0009] In one embodiment, the guide component includes two connecting plates and a V-shaped guide platform; one end of the connecting plate is rotatably connected to the crushing jaw, and the other end is slidably mounted on the V-shaped guide platform via a slide table. The V-shaped guide platform is fixedly mounted on the crushing chamber, and a slide groove is provided on the V-shaped guide platform, with the slide table and the slide groove being slidably connected.

[0010] In one embodiment, filter holes are provided in the V-shaped guide platform.

[0011] In one embodiment, a compression spring is provided between the slide table and the slide groove.

[0012] In one embodiment, the crushing jaw on the bottom plate is 1 mm to 5 mm higher than the filter screen.

[0013] In one embodiment, a guide platform is provided at the connection between the filter screen and the crushing jaw.

[0014] In one embodiment, the crushing assembly includes: a first crushing jaw and a second crushing jaw; the first crushing jaw and the second crushing jaw are symmetrically rotatably disposed in the feed hopper and connected to the transfer assembly.

[0015] In one embodiment, a hopper is also included, which is slidably disposed on the shell and is used to hold the rock sample after secondary crushing.

[0016] In one embodiment, the transfer assembly includes a turntable rotatably disposed within a housing and connected to the output end of a motor. One end of a linkage rod is rotatably connected to the turntable, and the other end of the linkage rod is rotatably connected to a slider, which is slidably disposed within the housing. The slider is fixedly connected to a first rack in a horizontal direction and a connecting rod in a vertical direction. A second rack is fixedly connected to the upper end of the connecting rod. Two first gears, respectively connected to the rotating shaft of the crushing jaw, are meshed on the first rack. A second gear, connected to the rotating shaft of the first crushing jaw, is meshed on the second rack. A third gear is meshed on the second gear and is also connected to the rotating shaft of the second crushing jaw.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] The rock sample crushing device for testing and analysis provided in this application achieves coordinated operation of primary crushing and secondary crushing by setting up a split-drive component to synchronously drive the crushing component and the pulverizing mechanism, thereby improving the overall crushing efficiency. The symmetrically arranged upper and lower crushing jaws within the crushing chamber create progressively increasing crushing pressure zones. Combined with the design of the filter screen and guide components, particles meeting the required particle size are discharged promptly, preventing secondary compaction. The sliding fit between the V-shaped guide platform and the connecting plate, along with the buffering effect of the compression spring, prevents material blockage and ensures smooth material flow. A filter screen and guide platform, positioned lower than the crushing jaws, combined with the filter holes of the V-shaped guide platform and the filter screen, achieve efficient particle screening and re-crushing.

[0019] The above methods work together to ensure that the rock samples are crushed with uniform and fine particle size, improve crushing efficiency, and ensure that the device operates stably and conveniently, effectively meeting the accuracy requirements of detection and analysis. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall rock sample crushing device for testing and analysis provided in this application;

[0022] Figure 2 A cross-sectional schematic diagram of the internal structure of the rock sample crushing device for testing and analysis provided in this application;

[0023] Figure 3 An enlarged schematic diagram of the structure of the rock sample crushing device for testing and analysis provided in this application at point B;

[0024] Figure 4 A schematic diagram of the feed guide structure of the rock sample crushing device for testing and analysis provided in this application;

[0025] Figure 5 A schematic diagram of the crushing jaw of the rock sample crushing device for testing and analysis provided in this application;

[0026] Figure 6 An enlarged schematic diagram of point C of the rock sample crushing device for testing and analysis provided in this application;

[0027] Figure 7 A schematic diagram of the split-drive component of the rock sample crushing device for testing and analysis provided in this application;

[0028] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Feed bin; 3. Crushing mechanism; 31. Crushing chamber; 32. Upper crushing jaw; 33. Lower crushing jaw; 331. Base plate; 332. Crushing jaw; 333. Filter screen; 334. Guide table; 34. Connecting plate; 35. V-shaped guide table; 36. Compression spring; 4. Motor; 5. Dividing assembly; 51. Turntable; 52. Linkage rod; 53. Slider; 54. First rack; 55. Second gear; 56. Connecting rod; 57. Second rack; 58. First gear; 59. Third gear; 6. Feed bin; 7. Crushing assembly; 71. First crushing jaw; 72. Second crushing jaw. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0030] See Figures 1 to 7 As shown, the rock sample crushing device for testing and analysis provided in this application includes a housing 1, a feed bin 2 fixedly installed on the top of the housing 1, a crushing component 7 installed in the feed bin 2, the crushing component 7 being used for preliminary crushing of the rock sample; a pulverizing mechanism 3 installed in the housing 1, the pulverizing mechanism 3 being used for secondary pulverizing of the rock sample after preliminary crushing; and a drive assembly 5 also installed on the housing 1, the input end of the drive assembly 5 being connected to the output end of the motor 4, the drive assembly 5 being used to drive the pulverizing mechanism 3 and the crushing component 7.

[0031] In this embodiment, the input end of the transfer component 5 is connected to the output end of the motor 4, and the output ends of the transfer component 5 are all connected to the power input ends of the crushing mechanism 3 and the crushing component 7. The motor 4 drives the crushing mechanism 3 and the crushing component 7 to operate synchronously through the transfer component 5. The rock sample enters the crushing component 7 through the feed bin 2 for preliminary crushing. After the preliminary crushing, the volume of the rock sample is significantly reduced. Then it enters the crushing mechanism 3 for progressive secondary crushing. During the progressive processing of the crushing mechanism 3, rock sample particles that meet the required diameter for analysis are discharged in time to avoid the particles being compressed into lumps again, which would reduce the crushing efficiency and crushing effect.

[0032] The crushing mechanism 3 includes a crushing chamber 31, which is fixedly installed inside the housing 1. Two crushing upper jaws 32 are symmetrically fixed inside the crushing chamber 31. A crushing lower jaw 33 is rotatably installed on the side of the two crushing upper jaws 32 that are close to each other inside the crushing chamber 31. The crushing lower jaw 33 includes a bottom plate 331, the bottom end of which is rotatably installed on the crushing chamber 31 and connected to the transfer assembly 5. The top end of the bottom plate 331 is connected to the guide component, which is installed at the end of the crushing chamber 31 near the feed chamber 2.

[0033] Multiple crushing jaws 332 are fixedly installed on the bottom plate 331 on the side near the crushing jaw 32, and a filter screen 333 is opened on the bottom plate 331 between two adjacent crushing jaws 332.

[0034] After initial crushing, the rock sample enters the crushing zone between the upper crushing jaw 32 and the lower crushing jaw 33 via the guide component. Driven by the transfer assembly 5, the lower crushing jaw 33 oscillates periodically (i.e., the lower crushing jaw 33 moves closer to the upper crushing jaw 32 and then moves away), crushing the rock sample during the relative movement of the upper and lower crushing jaws 32 and 33. Furthermore, the arrangement of the crushing jaws 332 and the design of the filter screen 333 ensure that particles of the required analytical diameter formed during crushing are promptly discharged through the filter screen 333, preventing particle accumulation and secondary compaction, thus further improving crushing efficiency and effect. At each filter screen 3 location in the crushing zone, particles formed after crushing the compressed rock sample can be quickly discharged, preventing particle accumulation and re-compaction, ensuring a highly efficient and continuous crushing process, and improving overall analytical accuracy and efficiency.

[0035] The crushing area between the crushing upper jaw 32 and the crushing lower jaw 33 gradually narrows from top to bottom.

[0036] During the crushing process, the volume of the rock sample gradually decreases from top to bottom in the crushing zone, and the crushing zone gradually narrows from top to bottom, forming a progressively increasing crushing pressure to ensure that the sample particles are uniformly refined, making it easier to meet the particle size standards required for analysis.

[0037] The guide components include two connecting plates 34 and a V-shaped guide platform 35.

[0038] One end of the connecting plate 34 is rotatably connected to the crushing jaw 33, and the other end is slidably mounted on the V-shaped guide table 35 via a slide table. The V-shaped guide table 35 is fixedly mounted on the crushing chamber 31. A slide groove is provided on the V-shaped guide table 35, and the slide table and the slide groove are slidably connected.

[0039] In this embodiment, when the crushing jaw 33 swings, the driving connecting plate 34 drives the slide to move in the slide groove. With the sliding of the connecting plate 34, the rock sample stuck between the V-shaped guide table 35 and the connecting plate 34 can be pushed to the crushing area in time to avoid blockage and ensure smooth crushing process.

[0040] Optionally, a compression spring 36 is provided between the slide table and the slide groove. During the sliding process of the connecting plate 34, the compression spring 36 provides buffering and restoring force to ensure that the connecting plate 34 moves stably and prevents material jamming caused by vibration.

[0041] Optionally, the crushing jaw 332 on the base plate 331 is 1 mm to 5 mm higher than the filter screen 333, so that the particles fall smoothly into the filter screen 333 under the action of gravity, reducing retention, and avoiding direct compression of the rock sample by the filter screen 333. This ensures that the particles flow smoothly out of the filter screen 333 while preventing the filter screen 333 from being blocked or damaged due to compression.

[0042] Optionally, a guide platform 334 is provided at the connection between the filter screen 333 and the crushing jaw 332. The guide platform 334 is designed to be inclined along the length of the filter screen 333 and the crushing jaw 332, so as to guide particles that do not meet the particle size standard back to the crushing jaw 332 for further crushing in a timely manner, ensuring that all particles meet the standard.

[0043] Optionally, a filter hole is provided on the V-shaped guide table 35. The filter hole on the V-shaped guide table 35 can smoothly discharge the particles that meet the particle size requirements obtained by the crushing component 7, while intercepting larger particles, to ensure that the crushing process is fine and efficient.

[0044] Optionally, the crushing assembly 7 includes a first crushing jaw 71 and a second crushing jaw 72, wherein the first crushing jaw 71 and the second crushing jaw 72 are symmetrically rotated and connected to the transfer assembly 5.

[0045] In this embodiment, the symmetrical rotation design of the first crushing jaw 71 and the second crushing jaw 72, driven by the split-drive component 5, achieves bidirectional compression crushing, improves crushing efficiency, and quickly crushes larger rock samples into smaller particles, ensuring the smooth progress of subsequent crushing processes.

[0046] Optionally, the crushing device of this application also includes a hopper 6, which is slidably disposed inside the housing 1 and communicates with the bottom of the crushing mechanism 3. It is used to hold the rock sample after secondary crushing. After the rock sample particles are collected, the hopper 6 can be easily removed from the housing 1 for subsequent processing and analysis, avoiding the tedious operation of frequently opening and closing the equipment and improving the overall work efficiency.

[0047] Optionally, the transfer assembly 5 includes a turntable 51, which is rotatably disposed inside the housing 1 and connected to the output end of the motor 4. One end of the linkage rod 52 is rotatably connected to the turntable 51, and the other end of the linkage rod 52 is rotatably connected to a slider 53, which is slidably disposed inside the housing 1.

[0048] The slider 53 is fixedly connected to a first rack 54 in the horizontal direction and a connecting rod 56 in the vertical direction. The upper end of the connecting rod 56 is fixedly connected to a second rack 57. The first rack 54 is meshed with two first gears 58 that are respectively connected to the rotating shaft of the crushing jaw 33. The second rack 57 is meshed with a second gear 55 that is connected to the rotating shaft of the first crushing jaw 71. The second gear 55 is meshed with a third gear 59, and the third gear 59 is also connected to the rotating shaft of the second crushing jaw 72.

[0049] In this embodiment, the turntable 51 is driven to rotate by the motor 4. The rotation of the turntable 54 drives the linkage rod 52 to rotate. Since the other end of the linkage rod 52 is connected to the slider 53, the slider 5 can only move horizontally by the limit of the slide rail in the housing 1. Therefore, when the turntable 51 rotates, it drives the slider 53 to move back and forth through the linkage rod 52. The slider 53 drives the first rack 54 to move back and forth, thereby driving the two first gears 58 to rotate, which in turn drives the two crushing jaws 33 to deflect clockwise or counterclockwise at the same time. Moreover, the slider 53 drives the second rack 57 to move back and forth through the connecting rod 56, thereby driving the second gear 55 to rotate. The rotation of the second gear 55 drives the first crushing jaw 71 and the third gear 59 to rotate at the same time. The third gear 59 drives the second crushing jaw 72 to rotate. Since the rotation directions of the first crushing jaw 71 and the second crushing jaw 72 are opposite, the first crushing jaw 71 and the second crushing jaw 72 move closer or further away from each other to achieve the crushing function. Through the synchronized and coordinated actions of the above-mentioned components, the movement trajectory of the crushing jaw 33 and the crushing component 7 is precisely controlled, ensuring that the rock sample is subjected to uniform force during the crushing process, improving the crushing effect, and optimizing the overall workflow.

[0050] In practical applications, the starting motor 4 drives the transfer assembly 5. First, the rock sample is initially crushed by the first crushing jaw 71 and the second crushing jaw 72. The rock sample after initial crushing enters the crushing area through the guide platform 35. The crushing jaw 332 works with the upper crushing jaw 32 to perform progressive crushing. The particles that meet the requirements formed during the crushing process are efficiently discharged through the filter screen 333 to avoid secondary compaction and ensure the crushing effect.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rock sample crushing device for detection and analysis, characterized in that: Includes a housing (1), a feed hopper (2) fixedly installed on the top of the housing (1), a crushing component (7) installed in the feed hopper (2), a crushing mechanism (3) installed in the housing (1), and a splitting component (5) also installed on the housing (1). The input end of the splitting component (5) is connected to the output end of the motor (4), and the splitting component (5) is used to drive the crushing mechanism (3) and the crushing component (7). The crushing mechanism (3) includes a crushing chamber (31), which is fixedly installed inside the housing (1). Two crushing upper jaws (32) are symmetrically fixed inside the crushing chamber (31). A crushing lower jaw (33) is rotatably installed on the side of the two crushing upper jaws (32) that are close to each other inside the crushing chamber (31). The crushing lower jaw (33) includes a bottom plate (331), the bottom end of which is rotatably installed on the crushing chamber (31) and connected to the splitter assembly (5). A guide is installed at the top of the bottom plate (331), and the guide is installed at the end of the crushing chamber (31) near the feed chamber (2). Multiple crushing jaws (332) are fixedly arranged on the bottom plate (331) near the crushing jaw (32), and a filter screen (333) is opened on the bottom plate (331) between two adjacent crushing jaws (332).

2. The rock sample breaking device for detection analysis according to claim 1, characterized by: The crushing area between the crushing upper jaw (32) and the crushing lower jaw (33) gradually narrows from top to bottom.

3. The rock sample breaking device for detection analysis according to claim 1, characterized by: The guide includes two connecting plates (34) and a V-shaped guide platform (35); One end of the connecting plate (34) is rotatably connected to the crushing jaw (33), and the other end is slidably mounted on the V-shaped guide table (35) via a slide table. The V-shaped guide table (35) is fixedly mounted on the crushing chamber (31). A slide groove is provided on the V-shaped guide table (35), and the slide table is slidably connected to the slide groove.

4. The rock sample breaking device for detection analysis according to claim 3, characterized by: A compression spring (36) is provided between the slide table and the slide groove.

5. The rock sample crushing device for detection and analysis according to claim 3, characterized in that: The V-shaped guide plate (35) has filter holes.

6. The rock sample breaking device for detection analysis according to claim 1, characterized by: The crushing jaw (332) on the base plate (331) is 1 mm to 5 mm higher than the filter screen (333).

7. The rock sample breaking device for detection analysis according to claim 1, characterized by: A guide platform (334) is provided at the connection between the filter screen (333) and the crushing jaw (332).

8. A rock sample breaking device for assay analysis according to any one of claims 1 to 7, characterised in that: The crushing component (7) includes: a first crushing jaw (71) and a second crushing jaw (72); The first crushing jaw (71) and the second crushing jaw (72) are symmetrically rotated in the feed bin (2) and connected to the splitter assembly (5).

9. The rock sample crushing apparatus for detection and analysis according to any one of claims 1-7, characterized in that: It also includes a material storage bin (6), which is slidably disposed on the shell (1) and connected to the bottom of the crushing mechanism (3) for holding rock samples after secondary crushing.

10. The rock sample breaking device for detection analysis according to claim 8, characterized by: The transfer assembly (5) includes a turntable (51), which is rotatably disposed inside the housing (1) and connected to the output end of the motor (4). One end of a linkage rod (52) is rotatably connected to the turntable (51), and the other end of the linkage rod (52) is rotatably connected to a slider (53). The slider (53) is slidably disposed inside the housing (1). The slider (53) is fixedly connected to a first rack (54) in the horizontal direction and a connecting rod (56) in the vertical direction. The upper end of the connecting rod (56) is fixedly connected to a second rack (57). The first rack (54) is meshed with two first gears (58) that are respectively connected to the rotating shaft of the crushing jaw (33). The second rack (57) is meshed with a second gear (55) that is connected to the rotating shaft of the first crushing jaw (71). The second gear (55) is meshed with a third gear (59). The third gear (59) is also connected to the rotating shaft of the second crushing jaw (72).

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