Rock sample crushing device

Abstract

The utility model discloses a rock sample crushing device which comprises a support and a stone crushing box, a first rotating shaft and a second rotating shaft are rotatably connected in the stone crushing box, the first rotating shaft and the second rotating shaft are arranged in parallel, and at least one end of the first rotating shaft and at least one end of the second rotating shaft extend out of the stone crushing box. Stone crushing cylinders are distributed on the first rotating shaft and the second rotating shaft on the inner and outer peripheries of the stone crushing box; an arc-shaped adjusting groove is formed in the stone crushing box, the first rotating shaft extends out of the arc-shaped adjusting groove and then is connected with a swinging arm, a rotating pin preset on the swinging arm is rotationally connected with the support, the lower end of the swinging arm is connected with a connecting rod, and a driving mechanism is arranged at the position, close to the connecting rod, of the support; the driving mechanism is connected with and drives the connecting rod; the end, extending out of the stone crushing box, of the second rotating shaft is connected with a motor transmission mechanism installed outside the support. Through the design of the rock sample crushing device, the safety coefficient of the driving mechanism can be improved, and the stability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of rock crushing technology, specifically to an automatic dust blowing and suction device for the inner cavity of a rotary compressor cylinder. Background Technology

[0002] Rocks are aggregates of minerals that make up the Earth's crust. They are solid inorganic substances in nature, and understanding the properties of rocks is of great significance in fields such as engineering and construction. When studying large rock samples, rock crushing devices are needed to break them into appropriate sizes. Most existing rock crushing devices use a double crushing cylinder to crush rock samples into the required size, achieving the purpose of crushing through the compression of the crushing cylinder.

[0003] The crushing drums of this type of stone crushing device are mostly fixed, and the distance between them is not easy to adjust. Some devices are equipped with adjustment mechanisms to adjust the distance between the crushing drums, but these mechanisms are usually located directly between the shafts of the two drums, forcing the adjustment mechanism to directly resist the reaction force of the crushed stone. Moreover, the maximum reaction force of the crushed stone is difficult to calculate directly, which places higher demands on the selection and installation of the adjustment mechanism and increases the manufacturing difficulty accordingly. Summary of the Invention

[0004] The purpose of this invention is to provide a rock crushing device to address the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rock crushing device includes a support and a crushing box disposed on the support. A first rotating shaft and a second rotating shaft are rotatably connected inside the crushing box. The first rotating shaft and the second rotating shaft are arranged in parallel and at least one end extends out of the crushing box. Crushing cylinders are distributed on the inner and outer circumferences of the first rotating shaft and the second rotating shaft.

[0007] The crushing box is provided with an arc-shaped adjustment groove. The first rotating shaft extends out of the arc-shaped adjustment groove and is connected to a swing arm. A pre-set rotating pin on the swing arm is rotatably connected to the bracket. The lower end of the swing arm is connected to a connecting rod. A drive mechanism is provided on the bracket near the connecting rod. The drive mechanism is connected to and drives the connecting rod. The end of the second rotating shaft extending out of the crushing box is connected to a motor transmission mechanism installed outside the bracket.

[0008] This rock crushing device, through the arrangement of the arc-shaped adjustment groove, the swing arm, and the drive mechanism, can adjust the distance between the first rotating shaft and the second rotating shaft, that is, the distance between the pair of crushing cylinders. On the one hand, by adjusting, it is beneficial to crush rocks of different sizes. On the other hand, the distance can be adjusted according to actual needs to obtain rock samples with different particle size requirements, thereby improving the applicability of this rock crushing device.

[0009] Furthermore, the motor transmission mechanism includes a transmission shaft rotatably mounted on the bracket, a drive gear on the transmission shaft, a driven gear meshing with the drive gear on the second rotating shaft, and a motor mounted on the bracket, with the output end of the motor connected to the transmission shaft.

[0010] Furthermore, the upper side of the bracket is detachably provided with a support plate, the drive shaft and the rotating pin are respectively connected to the support plate, the driving gear and the driven gear are both located between the support plate and the crushing box, and the swing arm is located outside the support plate, which facilitates the disassembly, assembly and maintenance of the swing arm.

[0011] Furthermore, the two ends of the first rotating shaft are respectively connected to the swing arms, and the lower ends of the pair of swing arms are connected to the connecting rod, with the swing arms arranged symmetrically on both sides.

[0012] Furthermore, the driving mechanism includes a lead screw motor module and a connecting rod with through holes at both ends. One end of the connecting rod is hinged to a slider on the lead screw motor module, and the other end of the connecting rod is rotatably connected to the connecting rod. A bottom platform is provided below the bracket, and the lead screw motor module is mounted on the bottom platform.

[0013] Furthermore, the inner wall of the crushed stone box is provided with adjustment cavities at both ends of the arc-shaped adjustment groove, and a sealing element is provided in the arc-shaped adjustment groove. The two ends of the sealing element extend into the adjustment cavity, and the middle of the sealing element is provided with a mounting through hole for the first rotating shaft to pass through.

[0014] Furthermore, an inclined feed plate is provided inside the crushing box above the crushing cylinder.

[0015] Furthermore, a dust collector is provided on one side of the support, and an air suction hole is opened on the side wall of the crushing box. The air suction hole is connected to the dust collector through a pipeline.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This rock crushing device, through the arrangement of the arc-shaped adjustment groove, the swing arm, and the drive mechanism, can adjust the distance between the first rotating shaft and the second rotating shaft, that is, the distance between the pair of crushing cylinders. On the one hand, this adjustment is beneficial for crushing rocks of different sizes; on the other hand, the distance can be adjusted according to actual needs to obtain rock samples with different particle size requirements, thus improving the applicability of this rock crushing device; 2. The arc-shaped adjustment groove serves both to support the first rotating shaft and to guide and limit its movement within a set range, ensuring that when the first rotating shaft moves to its limit position, the crushed stone on it... 3. There is still a gap between the cylinder and the crushing cylinder on the second rotating shaft, so they will not collide directly; 4. This rock crushing device uses the lever principle, that is, the distance between the rotating pin and the connecting rod is greater than the distance between the rotating pin and the first rotating shaft. This structural design can further improve the safety factor of the adjustment device, resist greater crushing reaction force during the crushing process, improve the stability of the device, and effectively reduce the manufacturing difficulty and cost by adopting structural optimization; 5. The arc-shaped adjustment groove is equipped with a sealing element, and the two ends of the arc-shaped adjustment groove are equipped with adjustment cavities. This structural design can effectively prevent crushed stone from entering the adjustment groove during the adjustment process, so as not to affect the stability of the adjustment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a rock fragmentation device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of a rock fragmentation device according to this utility model (without the cover), viewpoint 1;

[0019] Figure 3 This is a schematic diagram of the overall structure of a rock fragmentation device according to this utility model (without the cover), viewpoint two;

[0020] Figure 4 This is a schematic diagram of the overall structure of a rock fragmentation device according to this utility model (without the cover), perspective three;

[0021] Figure 5 This is a schematic diagram of the sealing element and the crushing box of a rock crushing device according to the present invention;

[0022] Figure 6 This is a cross-sectional view of the sealing element of this utility model disposed in the arc-shaped adjustment groove and the adjustment cavity;

[0023] In the diagram: 1. Crushed stone box; 2. Support frame; 3. First rotating shaft; 4. Second rotating shaft; 5. Crushed stone cylinder; 6. Swing arm; 7. Rotating pin; 8. Connecting rod; 9. Arc-shaped adjusting groove; 901. Adjusting cavity; 10. Drive shaft; 11. Driving gear; 12. Driven gear; 13. Motor; 14. Screw motor module; 15. Connecting rod; 16. Seal; 201. Support plate; 17. Feed plate; 18. Dust collector. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] like Figures 1 to 6 As shown, a rock crushing device includes a crushing box 1, a support 2 at the bottom of the crushing box 1, a first rotating shaft 3 and a second rotating shaft 4 rotatably connected inside the crushing box 1, and crushing cylinders 5 located inside the crushing box 1 on the outer periphery of both the first rotating shaft 3 and the second rotating shaft 4. The support 2 is provided with a motor transmission mechanism for driving the crushing cylinders 5. Two swing arms 6 are symmetrically provided at both ends of the first rotating shaft 3. A pre-set rotating pin 7 on the swing arm 6 is rotatably connected to the support 2. A connecting rod 8 is provided between the lower ends of the two swing arms 6. A driving mechanism is provided on the support 2 near the connecting rod 8. The driving mechanism is connected to the connecting rod 8. The distance between the rotating pin 7 and the connecting rod 8 is greater than the distance between the rotating pin 7 and the first rotating shaft 3. The crushing box 1 is provided with an arc-shaped adjustment groove 9 adapted to the first rotating shaft 3.

[0027] This rock crushing device, through the arrangement of the arc-shaped adjustment groove 9, the swing arm 6 and the drive mechanism, can adjust the distance between the first rotating shaft 3 and the second rotating shaft 4, that is, the distance between the pair of crushing cylinders 5. On the one hand, by adjusting, it is beneficial to crush rocks of different sizes. On the other hand, the distance can be adjusted according to actual needs to obtain rock samples with different particle size requirements, thereby improving the applicability of this rock crushing device.

[0028] The drive mechanism moves the connecting rod 8, allowing the swing arm 6 to rotate around the rotating pin 7, thereby moving the first rotating shaft 3 along the arc-shaped adjustment groove 9 to adjust the distance between the first rotating shaft 3 and the second rotating shaft 4. The arc-shaped adjustment groove 9 serves to support the first rotating shaft 3, as well as guide and limit its movement, ensuring that when the first rotating shaft 3 moves to its limit position, there is still a gap between the crushed stone cylinder on it and the crushed stone cylinder on the second rotating shaft 4, preventing direct collision.

[0029] This rock crushing device utilizes the lever principle, where the distance between the rotating pin 7 and the connecting rod 8 is greater than the distance between the rotating pin 7 and the first rotating shaft 3. This structural design further improves the safety factor of the adjustment device, meaning that the greater adjustment force makes the adjustment process more stable. During the crushing process, it can resist a greater reaction force from the crushed rock, thus improving the stability of the device. The structural optimization effectively reduces the manufacturing difficulty and selection cost.

[0030] Preferably, the bottom of the crushing box 1 is provided with a material receiving trough, and a material receiving box is provided in the material receiving trough. The material receiving box is located below the crushing cylinder 5 and can receive crushed rock samples. Preferably, the crushing box 1 is also provided with an openable and closable lid.

[0031] Furthermore, the motor transmission mechanism includes a transmission shaft 10 rotatably mounted on the bracket 2, a drive gear 11 on the transmission shaft 10, a driven gear 12 meshing with the drive gear 11 on the second rotating shaft 4, and a motor 13 on the bracket 2 at the corresponding position of the transmission shaft 10. The output shaft of the motor 13 is coaxially connected to the transmission shaft 10. By using gears to transmit power, the space occupied by the entire transmission mechanism can be reduced, and the gears will not slip during the power transmission process, resulting in high power transmission efficiency.

[0032] In this embodiment, the second rotating shaft 4 and the crushing cylinder on it rotate actively under the drive of the motor, while the crushing cylinder on the first rotating shaft 3 is passive, rotating passively under the influence and compression of the rock.

[0033] In other embodiments, a drive motor can also be connected to the end of the first rotating shaft, enabling it to drive and rotate independently. The drive motor can be mounted on the swing arm via a motor mount. The drive motor, its transmission components, and the first rotating shaft swing together with the swing arm, without affecting the independent drive of the first rotating shaft by the drive motor. This dual-motor arrangement can simultaneously drive the first and second rotating shafts to rotate, which is beneficial for the crushing operation of the crushing cylinder.

[0034] Furthermore, a support plate 201 is detachably provided on the side of the bracket 2. The drive shaft 10 and the rotating pin 7 on the same side as the drive shaft 10 are respectively connected to the support plate 201 through bearings. A bearing is also provided between the second rotating shaft and the wall of the crushing box 1. The driving gear 11 and the driven gear 12 are located between the support plate 201 and the crushing box. The swing arm 6 is located on the outside of the support plate 201.

[0035] In the crushing process, the swing arm plate needs to resist the reaction force of crushing stone. When selecting the material for the swing arm 6, the minimum value between the maximum load of the drive mechanism and the maximum load of the first rotating shaft 3 is used to prevent the first rotating shaft 3, crushing cylinder 5, drive mechanism and other components from being damaged due to the large reaction force during the crushing process, which would lead to the paralysis of the device. By placing the swing arm 6 on the outside, it is convenient to disassemble and repair the swing arm 6.

[0036] Furthermore, the first rotating shaft is connected to the swing arms at both ends, and the connecting rod is connected between the lower ends of the pair of swing arms. The connecting rod 8 has stepped structures at both ends, and the outer diameter of the middle cylinder of the connecting rod 8 is larger than the outer diameter of the end cylinder. The lower end of the swing arm 6 has a through hole that matches the end of the connecting rod 8. This structural design facilitates assembly and improves assembly efficiency.

[0037] Preferably, the end of the connecting rod 8 is provided with a keyway, and the swing arm 6 is provided with a through hole adapted to the end of the connecting rod 8 and a protrusion adapted to the keyway. The swing arm 6 and the connecting rod 8 are fixed by a snap-fit ​​connection.

[0038] Furthermore, the drive mechanism includes a lead screw motor module 14 and a connecting rod 15 with through holes at both ends. One end of the connecting rod 15 is hinged to a slider on the lead screw motor module 14, and the other end of the connecting rod 15 is rotatably connected to the connecting rod 8. A bottom platform is provided below the bracket, and the lead screw motor module is mounted on the bottom platform. By pushing and pulling the connecting rod through the lead screw motor module 14, the swing arm 6 is driven to rotate, resulting in higher adjustment precision and a smoother adjustment process. The lead screw motor module 14 can be a commercially available mature product.

[0039] Furthermore, the inner wall of the crushed stone box 1 is provided with adjustment cavities 901 at both ends of the arc-shaped adjustment groove 9. A sealing element 16 is provided within the arc-shaped adjustment groove 9, with both ends of the sealing element 16 extending into the adjustment cavity 901. A mounting through hole for the first rotating shaft 3 to pass through is provided in the middle of the sealing element 16. This structural design effectively prevents crushed stone from entering the arc-shaped adjustment groove during adjustment, thus ensuring the stability of the adjustment.

[0040] The adjusting cavity 901 is an extension of both ends of the arc-shaped adjusting groove 9, which is a through groove penetrating the gravel box 1. The adjusting cavity 901 is a cavity within the box wall. The sealing element 16 has a shape similar to the arc-shaped adjusting groove 9, but its thickness is less than that of the box wall, and its two ends can be accommodated in the adjusting cavity 901. When the first rotating shaft 3 deflects under the drive of the swing arm 6, it can drive the sealing element 16 to slide within the arc-shaped adjusting groove 9 and the adjusting cavity 901. The sealing element 16 always plays a blocking role, preventing gravel from entering the arc-shaped adjusting groove 9. The first rotating shaft is connected to the mounting through hole through a bearing, which does not affect the rotation of the first rotating shaft. The sealing element can be a metal sliding plate.

[0041] Furthermore, a feed plate 17 is inclinedly provided inside the crushing box above the crushing cylinder 5; by providing the feed plate 17, large rocks can be prevented from directly hitting the crushing cylinder 5 and causing damage to it.

[0042] Furthermore, a dust collector 18 is provided on the support 2. The dust collector 18 is located on the side of the crushing box 1. An air suction hole is opened on the side wall of the crushing box 1, and the air suction hole is connected to the dust collector 18 through a pipeline. The dust collector 18 prevents the generation of large amounts of dust during the crushing process from affecting the health of workers. The dust collector 18 includes a dust collection box, a vacuum pump, a filter, and a dust collection cover sealed to the dust collection box. The filter inside the dust collection box divides the dust collection box into two chambers. One chamber is connected to the crushing box 1 through a pipeline, and the other chamber contains a vacuum pump. A hatch is opened on the side of the chamber connected to the crushing box 1. The dust collector 18 prevents the generation of large amounts of dust during the crushing process from affecting the health of workers.

[0043] When using it, first adjust the distance between the first rotating shaft 3 and the second rotating shaft 4 according to the needs, put the rock sample into the crushing box 1 and cover it, start the vacuum pump and crushing motor 13, turn off the crushing motor and vacuum pump after crushing is completed, and take out the crushed rock through the material box.

[0044] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rock crushing device, comprising a support frame and a crushing box disposed on the support frame, characterized in that, The crushing box is rotatably connected to a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are arranged in parallel and at least one end extends out of the crushing box. Crushing cylinders are distributed on the inner and outer circumferences of the crushing box. The crushing box is provided with an arc-shaped adjustment groove. The first rotating shaft extends out of the arc-shaped adjustment groove and is connected to a swing arm. A pre-set rotating pin on the swing arm is rotatably connected to the bracket. The lower end of the swing arm is connected to a connecting rod. A drive mechanism is provided on the bracket near the connecting rod. The drive mechanism is connected to and drives the connecting rod. The end of the second rotating shaft extending out of the crushing box is connected to a motor transmission mechanism installed outside the bracket.

2. The rock fragmentation device according to claim 1, characterized in that, The motor transmission mechanism includes a transmission shaft rotatably mounted on the bracket, a drive gear on the transmission shaft, a driven gear meshing with the drive gear on the second rotating shaft, and a motor mounted on the bracket, the output end of the motor being connected to the transmission shaft.

3. The rock fragmentation device according to claim 2, characterized in that, The upper side of the bracket is detachably provided with a support plate. The drive shaft and the rotating pin are respectively connected to the support plate. The driving gear and the driven gear are both located between the support plate and the crushing box. The swing arm is located on the outside of the support plate.

4. The rock fragmentation device according to claim 1, characterized in that, The first rotating shaft is connected to the swing arms at both ends, and the connecting rod is connected between the lower ends of the pair of swing arms.

5. The rock fragmentation device according to claim 1, characterized in that, The drive mechanism includes a lead screw motor module and a connecting rod with through holes at both ends. One end of the connecting rod is hinged to a slider on the lead screw motor module, and the other end of the connecting rod is rotatably connected to the connecting rod. A bottom platform is provided below the bracket, and the lead screw motor module is mounted on the bottom platform.

6. The rock fragmentation device according to claim 1, characterized in that, The crushing box has adjustment cavities at both ends of the arc-shaped adjustment groove inside its wall. A sealing element is provided in the arc-shaped adjustment groove, with both ends of the sealing element extending into the adjustment cavity. A mounting through hole for the first rotating shaft to pass through is provided in the middle of the sealing element.

7. The rock fragmentation device according to claim 1, characterized in that, An inclined feed plate is provided inside the crushing box above the crushing cylinder.

8. The rock fragmentation device according to claim 1, characterized in that, A dust collector is also provided on one side of the support frame, and an air suction hole is opened on the side wall of the crushing box. The air suction hole is connected to the dust collector through a pipeline.

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