A stone crusher for mine construction

Abstract

The application belongs to the technical field of mine equipment, and discloses a rock crusher for mine construction, which comprises a crushing mechanism, a dust suction mechanism, a dust collecting mechanism and a transmission mechanism. When the ore is crushed, the rock dust is sucked into the dust suction mechanism from below the crushing mechanism, at this time, the sucked dust will be attached to the dust sticking rod after passing through the air passage with the airflow, with the rotation of the main shaft, the rotating shell drives the dust sticking rod to rotate, and with the rotation of the rotating shell, the dust sticking rod enters the liquid tank, at this time, the water in the liquid tank will flush the dust on the dust sticking rod down, so that the dust sticking rod leaving the liquid tank restores the dust sticking ability, and the flushed dust will be mixed with water and extracted by the connected water filtering device, and after the impurities in the water are filtered out, the water is recycled and injected into the liquid tank, so that the crushing effect of the crushing mechanism on the ore is improved; on the other hand, the demand for water resources is reduced, and the water pollution problem caused by the traditional wet grinding is avoided.

Description

Technical Field

[0001] This invention belongs to the field of mining equipment technology, specifically a stone crusher for mining construction. Background Technology

[0002] Mines include coal mines, metallic mines, non-metallic mines, building material mines, and chemical mines, among others. Mine size (also known as production capacity) is usually expressed as annual or daily output. Crushing is a crucial part of the mining process, and jaw crushers, cone crushers, and hammer crushers are commonly used to break down large blocks of ore into smaller pieces that are easier to transport and process.

[0003] When crushing stone, it is necessary to strictly control the dust generated during the crushing process. If the dust is not properly and effectively treated, it will affect the surrounding ecology due to its strong diffusion. This not only affects the working environment of workers, but also causes transport vehicles to carry the dust onto the road when transporting ore. Therefore, it is necessary to spray water into the filling port of the crusher to suppress dust during the crushing process. However, in areas with scarce water resources, the cost of using water spraying to suppress dust is too high. At the same time, damp dust will affect the crushing effect and efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a stone crusher for mining construction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stone crusher for mining construction, comprising a crushing mechanism, wherein the crushing mechanism includes a housing and a mounting frame, and the housing is internally provided with a driven shaft, an eccentric shaft and a grinding cone, and further comprising: A vacuuming mechanism includes an inner protective shell and an outer protective shell fixedly connected to the inner and outer sides of the bottom of the outer shell. The outer protective shell has an air intake port on its side and an air inlet groove on its bottom. A second shaft frame is fixedly sleeved inside the inner protective shell. A first shaft frame is fixedly sleeved at the end of the outer protective shell away from the outer shell. A main shaft is rotatably installed inside the first and second shaft frames. A ventilation groove is opened on the side of the second shaft frame facing the first shaft frame. A dust collection mechanism is located inside an outer protective shell. It includes a fixed frame fixedly connected to the side of a second shaft frame and a liquid tank fixedly connected to the bottom of the outer protective shell. A rotating shell is rotatably mounted on the outer side of the fixed frame. Multiple centrally symmetrical rotating rods are rotatably mounted on the rotating shell. A dust-adhesive rod is fixedly connected to the top of each rotating rod. The transmission mechanism includes a sun gear fixedly sleeved on the main shaft, which drives the rotating housing to rotate at a faster speed than the main shaft.

[0006] Preferably, the crushing mechanism further includes a grinding cover fixedly connected to the top of the housing, a feed hopper fixedly connected to the top of the grinding cover, the driven shaft installed in the mounting frame, the eccentric shaft installed in the driven shaft, and a drive helical gear meshing with the driven shaft fixedly sleeved at one end of the main shaft.

[0007] Preferably, a saddle is provided between the driven shaft and the grinding cone, and an inner bracket is fixedly sleeved on the outer side of the mounting bracket, with one side of the inner bracket being fixedly connected to the inner protective shell.

[0008] Preferably, the rotating shell has multiple centrally symmetrical sliding grooves on the side facing the second shaft frame, a rack is slidably connected in the sliding groove, the bottom end of the rotating rod is located in the sliding groove and a first gear is fixedly sleeved on it, and the rack meshes with the first gear.

[0009] Preferably, a spring is fixedly connected to the end of the rack away from the second shaft bracket, and the other end of the spring is fixedly connected to the inner side of the slide groove. The spring causes the end of the rack near the second shaft bracket to extend out of the slide groove by default.

[0010] Preferably, a driving block is fixedly connected to the side of the second shaft frame facing the first shaft frame. After the rack contacts the driving block, it is completely pressed into the slide groove, and at this time the rack drives the first gear to rotate 90°.

[0011] Preferably, a liquid pipe communicating with the interior is fixedly connected to the side of the liquid tank, the liquid pipe penetrates the outer protective shell and is connected to the water filtration device, and multiple horizontal partitions are fixedly connected inside the liquid tank.

[0012] Preferably, the transmission mechanism further includes a plurality of planetary gears rotatably mounted on a fixed frame and an internal gear ring fixedly connected to the inside of the rotating housing, wherein the planetary gears mesh with the sun gear and the internal gear ring.

[0013] The beneficial effects of this invention are as follows: 1. In this invention, the dust collection mechanism draws the crushed stone dust into the dust collection mechanism from below during ore crushing. The dust is then carried by the airflow through the ventilation groove and adheres to the dust-sticking rod. As the main shaft rotates, the rotating shell drives the dust-sticking rod to rotate. With the rotation of the rotating shell, the dust-sticking rod enters the liquid tank. The water in the liquid tank washes the dust off the dust-sticking rod, allowing it to regain its dust-sticking ability. The washed-off dust mixes with water and is extracted by a connected water filtration device. After filtering out impurities, the water is circulated back into the liquid tank. This design eliminates the need to spray water mist into the crushing mechanism from the direction of the feed hopper, thus preventing the crushed stone dust from clogging the groove between the grinding cover and the grinding cone after mixing with water, and preventing a decrease in the crushing effect of the crushing mechanism on the ore. On the other hand, this design separates water and ore, thereby reducing the demand for water resources. This allows the crusher to be used in dry and mountainous areas. At the same time, because water and ore are isolated, the water pollution problem caused by traditional wet grinding is avoided.

[0014] 2. Secondly, through the rack, the first gear, and the driving block, after the rack is pushed into the groove by the driving block, the rack drives the first gear to rotate, thereby driving the corresponding rotating rod and the sticky rod to rotate. At this time, the wide side of the sticky rod faces the ventilation groove, so that the sticky rod can cover the ventilation groove. As the rotating shell continues to rotate, the rack no longer contacts the driving block and is pushed by the spring. At this time, the sticky rod reverses back to the initial state. After the sticky rod enters the liquid tank, the wide side of the sticky rod faces the liquid pipe, so that it can be better flushed by the flowing water, thereby washing away the wet dust in the sticky rod to ensure the sticky rod's dust-adhesive ability.

[0015] 3. Finally, through the partitions set in the liquid tank, when too much dust adheres to the sticky sticks, causing the sticky fiber strips in the sticky sticks to stick together, as the rotating shell rotates, the sticky sticks come into contact with the partitions. Then, under the separation action of the partitions, the damp dust between the sticky sticks is peeled off. This allows the sticky sticks to be completely submerged in the water in the liquid tank, so that the damp dust between the sticky sticks can be washed off, preventing the sticky sticks from sticking together after leaving the water, which would affect the subsequent adhesion effect on dry dust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the outer casing of the present invention; Figure 3 This is a cross-sectional view of the mounting bracket of the present invention; Figure 4 This is a cross-sectional view of the dust suction mechanism and dust collection mechanism of the present invention; Figure 5This is a schematic cross-sectional view of the rotating shell structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic cross-sectional view of the rotating shell structure of the present invention; Figure 8 This is a schematic diagram of the drive ramp structure of the present invention; Figure 9 This is a schematic cross-sectional view of the liquid tank structure of the present invention.

[0017] In the diagram: 1. Crushing mechanism; 11. Outer shell; 12. Grinding cover; 13. Feed hopper; 14. Mounting frame; 15. Driven shaft; 16. Eccentric shaft; 17. Saddle; 18. Grinding cone; 19. Inner support; 2. Dust collection mechanism; 21. Inner protective shell; 22. Air inlet groove; 23. Outer protective shell; 24. Air extraction port; 25. First shaft frame; 26. Main shaft; 27. Drive helical gear; 28. Second shaft frame; 29. ​​Ventilation groove; 3. Dust collection mechanism; 31. Liquid tank; 32. Liquid pipe; 33. Fixing frame; 34. Rotating shell; 35. Slide groove; 36. Rack; 37. Rotating rod; 38. First gear; 39. Spring; 310. Dust-adhesive rod; 311. Drive inclined block; 312. Spacer bar; 4. Transmission mechanism; 41. Sun gear; 42. Planetary gear; 43. Internal gear ring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 9 As shown, this embodiment of the invention provides a stone crusher for mining construction, including a crushing mechanism 1. The crushing mechanism 1 includes a housing 11 and a mounting frame 14. The housing 11 is internally provided with a driven shaft 15, an eccentric shaft 16, and a grinding cone 18. It also includes: The vacuuming mechanism 2 includes an inner protective shell 21 and an outer protective shell 23 fixedly connected to the inner and outer sides of the bottom of the outer shell 11. The outer protective shell 23 has an air intake port 24 on its side and an air inlet groove 22 on its bottom. A second shaft bracket 28 is fixedly sleeved inside the inner protective shell 21. A first shaft bracket 25 is fixedly sleeved at the end of the outer protective shell 23 away from the outer shell 11. A main shaft 26 is rotatably installed inside the first shaft bracket 25 and the second shaft bracket 28. A ventilation groove 29 is opened on the side of the second shaft bracket 28 facing the first shaft bracket 25. The dust collection mechanism 3 is located inside the outer protective shell 23. It includes a fixed frame 33 fixedly connected to the side of the second shaft frame 28 and a liquid tank 31 fixedly connected to the bottom of the outer protective shell 23. A rotating shell 34 is rotatably mounted on the outer side of the fixed frame 33. Multiple centrally symmetrical rotating rods 37 are rotatably mounted on the rotating shell 34. A dust sticking rod 310 is fixedly connected to the top of the rotating rod 37. The transmission mechanism 4 includes a sun gear 41 fixedly sleeved on the main shaft 26. The transmission mechanism 4 drives the rotating shell 34 to rotate at a faster speed than the main shaft 26.

[0020] In this invention, the dust collection mechanism 2, when crushing ore, draws the crushed stone dust from below the crushing mechanism 1 into the dust collection mechanism 2. The dust drawn in passes through the ventilation groove 29 with the airflow and adheres to the dust-adhesive rod 310. As the main shaft 26 rotates, the rotating shell 34 drives the dust-adhesive rod 310 to rotate. With the rotation of the rotating shell 34, the dust-adhesive rod 310 enters the liquid tank 31. The water in the liquid tank 31 washes the dust off the dust-adhesive rod 310, allowing it to regain its dust-adhesive ability. The washed-off dust mixes with the water and is then... The water is drawn out by the water filtration device, and after filtering out impurities in the water, it is circulated back into the liquid tank 31. Using the above design, there is no need to spray water mist into the interior of the crushing mechanism 1 from the direction of the feed hopper 13, thereby avoiding the stone dust from clogging the groove between the grinding cover 12 and the grinding cone 18 after mixing with water, and avoiding the reduction of the crushing effect of the crushing mechanism 1 on the ore. On the other hand, this design separates water and ore, thereby reducing the demand for water resources, so that this crusher can be used in dry and mountainous areas. At the same time, because water and ore are isolated, the water pollution problem caused by traditional wet grinding is avoided.

[0021] Secondly, through the rack 36, the first gear 38, and the driving block 311, after the rack 36 is pushed into the slide groove 35 by the driving block 311, the rack 36 drives the first gear 38 to rotate, thereby driving the corresponding rotating rod 37 and the dust-adhesive rod 310 to rotate. At this time, the wide side of the dust-adhesive rod 310 faces the ventilation groove 29, so that the dust-adhesive rod 310 can cover the ventilation groove 29. As the rotating shell 34 continues to rotate, the rack 36 no longer contacts the driving block 311, and is pushed by the spring 39. At this time, the dust-adhesive rod 310 reverses back to the initial state. After the dust-adhesive rod 310 enters the liquid tank 31, the wide side of the dust-adhesive rod 310 faces the liquid pipe 32, so that it can be better flushed by the flowing water, thereby washing away the wet dust in the dust-adhesive rod 310 to ensure the dust-adhesive ability of the dust-adhesive rod 310.

[0022] Finally, through the spacer 312 set in the liquid tank 31, when too much dust adheres to the sticky rod 310, causing the sticky fiber strips in the sticky rod 310 to stick together, as the rotating shell 34 rotates, the sticky rod 310 comes into contact with the spacer 312. Then, under the separation action of the spacer 312, the damp dust between the sticky sticky rods 310 is peeled off. This allows the sticky rod 310 to be completely submerged in the water in the liquid tank 31, so that the damp dust between the sticky rods 310 can be washed down, preventing the sticky rods 310 from sticking together after leaving the water, which would affect the subsequent adhesion effect on dry dust.

[0023] like Figures 1 to 3 As shown, the crushing mechanism 1 also includes a grinding cover 12 fixedly connected to the top of the outer shell 11. A feed hopper 13 is fixedly connected to the top of the grinding cover 12. The driven shaft 15 is installed in the mounting frame 14. An eccentric shaft 16 is installed in the driven shaft 15. One end of the main shaft 26 is fixedly sleeved with a drive helical gear 27 that meshes with the driven shaft 15. A saddle 17 is provided between the driven shaft 15 and the grinding cone 18. An inner support 19 is fixedly sleeved on the outer side of the mounting frame 14. One side of the inner support 19 is fixedly connected to the inner protective shell 21. This setting is a conventional setting for a cone crusher and will not be described in detail here.

[0024] The rotating shell 34 has multiple centrally symmetrical grooves 35 on the side facing the second shaft bracket 28. A rack 36 is slidably connected in the groove 35. The bottom end of the rotating rod 37 is located in the groove 35 and a first gear 38 is fixedly sleeved on it. The rack 36 meshes with the first gear 38. A spring 39 is fixedly connected to the end of the rack 36 away from the second shaft bracket 28. The other end of the spring 39 is fixedly connected to the inner side of the groove 35. The spring 39 causes the end of the rack 36 near the second shaft bracket 28 to extend out of the groove 35 by default. A driving wedge 311 is fixedly connected to the side of the second shaft bracket 28 facing the first shaft bracket 25. After the rack 36 contacts the driving wedge 311, it is completely pressed into the groove 35. At this time, the rack 36 drives the first gear 38 to rotate 90°.

[0025] from Figures 5 to 9It can be seen that, in the default state, the narrow side of the sticky rod 310 faces the side of the second shaft bracket 28. As the rotating shell 34 is driven to rotate by the transmission mechanism 4, when the part of the rack 36 extending out of the slide groove 35 contacts the drive inclined block 311, the rack 36 is pushed into the slide groove 35. At this time, the movement of the rack 36 drives the first gear 38 to rotate, thereby driving the rotating rod 37 to rotate. At this time, the wide side of the sticky rod 310 faces the side of the second shaft bracket 28. As the rotating shell 34 continues to rotate, the sticky rod 310 pushes the side of the second shaft bracket 28... The ventilation slot 29 is covered to intercept dust in the airflow. Then, as the rotating shell 34 continues to rotate, when the rack 36 no longer contacts the drive wedge block 311, the spring 39 pushes the rack 36 to reset. At this time, the rotating rod 37 rotates in the opposite direction to reset. This design maximizes the contact area with the airflow when the sticky rod 310 intercepts dust in the airflow, and maximizes the contact area with the flowing water when the sticky rod 310 enters the liquid tank 31, thus ensuring the sticky effect of the sticky rod 310 and the rinsing and cleaning effect of the sticky rod 310.

[0026] like Figure 4 and Figure 9 As shown, a liquid pipe 32 communicating with the interior is fixedly connected to the side of the liquid tank 31. The liquid pipe 32 passes through the outer protective shell 23 and is connected to the water filtration device. Multiple horizontal partitions 312 are fixedly connected inside the liquid tank 31.

[0027] When the damp dust adhering to the sticky stick 310 causes multiple adjacent sticky fiber strips to stick together, it not only makes it difficult to clean the sticky stick 310 when it enters the liquid tank 31, affecting the sticky stick 310's effectiveness in subsequent dust collection, but also affects the center of gravity of the sticky stick 310 after the sticky fiber strips of the sticky stick 310 stick together. This causes the rotating rod 37 to rub against the rotating shell 34 during rotation, resulting in faster damage to the rotating rod 37 and affecting the service life of the rotating rod 37 and the sticky stick 310.

[0028] The transmission mechanism 4 also includes multiple planetary gears 42 rotatably mounted on the fixed frame 33 and an internal gear ring 43 fixedly connected to the inside of the rotating shell 34. The planetary gears 42 mesh with the sun gear 41 and the internal gear ring 43.

[0029] Working principle: When using this equipment, first use the motor to drive the main shaft 26 to rotate, then connect the air extraction port 24 to the air extraction fan, and finally connect the liquid pipe 32 to the water filtration equipment. After that, fill the liquid tank 31 with water and turn on the air extraction fan.

[0030] Next, the ore to be crushed is fed into the crushing mechanism 1 from the feed hopper 13. At this time, driven by the main shaft 26, the eccentric shaft 16 drives the grinding cone 18 to rotate, thereby crushing the ore into smaller pieces through cooperation with the grinding cover 12. At this time, the crushed stone dust generated during the crushing of the ore will be drawn out of the crushing mechanism 1 by the exhaust fan.

[0031] When the exhaust fan is drawing air, the gravel and dust will enter the inner protective shell 21 through the air inlet groove 22 along the airflow. Then the airflow will enter the outer protective shell 23 through the ventilation groove 29, and finally leave the dust collection mechanism 2 through the exhaust port 24.

[0032] When the airflow passes through the ventilation slot 29, the gravel and dust in the airflow will adhere to the dust-adhesive rod 310 covering the ventilation slot 29. When the main shaft 26 rotates, the transmission mechanism 4 will rotate the rotating shell 34, and the rotating shell 34 will rotate the dust-adhesive rod 310, so that the dust-adhesive rod 310 will work continuously in the cycle of adsorption and rinsing, thereby continuously adsorbing the gravel and dust generated when crushing ore.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crusher for mining construction, comprising a crushing mechanism (1), the crushing mechanism (1) comprising a housing (11) and a mounting frame (14), wherein the housing (11) is provided with a driven shaft (15), an eccentric shaft (16) and a grinding cone (18), characterized in that, Also includes: The vacuuming mechanism (2) includes an inner protective shell (21) and an outer protective shell (23) fixedly connected to the inner and outer sides of the bottom of the outer shell (11). The outer protective shell (23) has an air intake port (24) on its side and an air inlet groove (22) on its bottom. The inner protective shell (21) has a second shaft frame (28) fixedly sleeved inside. The outer protective shell (23) has a first shaft frame (25) fixedly sleeved at one end away from the outer shell (11). The first shaft frame (25) and the second shaft frame (28) have a main shaft (26) rotatably installed inside. The second shaft frame (28) has a ventilation groove (29) on its side facing the first shaft frame (25). The dust collection mechanism (3) is located inside the outer protective shell (23). It includes a fixed frame (33) fixedly connected to the side of the second shaft frame (28) and a liquid tank (31) fixedly connected to the bottom of the outer protective shell (23). A rotating shell (34) is rotatably installed on the outer side of the fixed frame (33). Multiple centrally symmetrical rotating rods (37) are rotatably installed on the rotating shell (34). A dust sticking rod (310) is fixedly connected to the top of the rotating rod (37). The transmission mechanism (4) includes a sun gear (41) fixedly sleeved on the main shaft (26), and the transmission mechanism (4) drives the rotating shell (34) to rotate at a faster speed than the main shaft (26); The crushing mechanism (1) also includes a grinding cover (12) fixedly connected to the top of the outer shell (11), a feed hopper (13) fixedly connected to the top of the grinding cover (12), the driven shaft (15) is installed in the mounting bracket (14), the eccentric shaft (16) is installed in the driven shaft (15), and one end of the main shaft (26) is fixedly sleeved with a drive helical gear (27) that meshes with the driven shaft (15). The rotating shell (34) has multiple centrally symmetrical grooves (35) on the side facing the second shaft frame (28). A rack (36) is slidably connected in the groove (35). The bottom end of the rotating rod (37) is located in the groove (35) and a first gear (38) is fixedly sleeved on it. The rack (36) meshes with the first gear (38). A spring (39) is fixedly connected to the end of the rack (36) away from the second shaft frame (28). The other end of the spring (39) is fixedly connected to the inner side of the groove (35). The spring (39) causes the end of the rack (36) close to the second shaft frame (28) to be... The first shaft bracket (28) is fixedly connected to the side of the first shaft bracket (25) with the extended slide groove (35). After the rack (36) contacts the drive inclined block (311), it is completely pressed into the slide groove (35). At this time, the rack (36) drives the first gear (38) to rotate 90°. When the sticky rod (310) intercepts dust in the airflow, the contact area with the airflow is the largest. When the sticky rod (310) enters the liquid tank (31), the contact area with the flowing water is the largest, thereby ensuring the sticky effect of the sticky rod (310) and the flushing and cleaning effect of the sticky rod (310).

2. The stone crusher for mining construction according to claim 1, characterized in that: A saddle (17) is provided between the driven shaft (15) and the grinding cone (18). An inner bracket (19) is fixedly sleeved on the outside of the mounting bracket (14). One side of the inner bracket (19) is fixedly connected to the inner protective shell (21).

3. A stone crusher for mining construction according to claim 2, characterized in that: The side of the liquid tank (31) is fixedly connected to a liquid pipe (32) that communicates with the interior. The liquid pipe (32) penetrates the outer protective shell (23) and is connected to the water filtration device. The interior of the liquid tank (31) is fixedly connected to multiple horizontal partitions (312).

4. A stone crusher for mining construction according to claim 3, characterized in that: The transmission mechanism (4) further includes a plurality of planetary gears (42) rotatably mounted on a fixed frame (33) and an internal gear ring (43) fixedly connected to the inside of the rotating shell (34), wherein the planetary gears (42) mesh with the sun gear (41) and the internal gear ring (43).

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