Rotary crusher

Abstract

The utility model discloses a rotary crusher, which belongs to the technical field of crushing equipment and comprises a crusher, a rotary crushing hammer arranged on the inner wall of the crusher and used for crushing stones and a crushing motor arranged on the crusher and used for driving the rotary crushing hammer to rotate for crushing, and the output end of the crushing motor is fixedly mounted on the rotary crushing hammer. The feeding hole and the discharging hole are formed in the crusher. According to the stone crushing device, in the stone crushing process, crushed stones can fall out only when the sizes of the crushed stones are smaller than the sizes of the sieve holes of the coarse-hole sieve plate or the fine-hole sieve plate, the coarse-hole sieve plate and the fine-hole sieve plate can be switched by starting the switching motor, and the coarse-hole sieve plate and the fine-hole sieve plate are respectively provided with the sieve holes with different sizes, so that the stone crushing efficiency is improved. And meanwhile, the crusher does not need to be shut down and disassembled during switching, the process is simpler and faster, and then the stone crushing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to a rotary crusher. Background Art

[0002] Hammer crusher is a device that uses high-speed rotating hammers to impact and crush materials. It is suitable for medium and fine crushing of medium-hardness materials such as limestone, slag, coke, coal, etc. in industrial sectors such as cement, chemical, electric power, and metallurgy.

[0003] In the existing technology, hammer crushers are often used to finely crush limestone, coal or other brittle materials with medium hardness or below. Different materials often need to control the material particle size within a certain range, and the particle size is determined by the size of the screen holes inside the crusher. When the size of the crushed stone needs to be adjusted, the hammer crusher needs to be stopped and the screen plate needs to be removed and replaced. Not only is the operation process more cumbersome, but it also affects the progress of the crushing process. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a rotary crusher that can realize automatic switching of screen plates of different specifications inside, thereby avoiding the need to shut down the hammer crusher to replace the screen plates.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] Rotary crusher, including:

[0007] Crusher;

[0008] Rotating breaker hammer, arranged on the inner wall of the crusher, is used to break stones;

[0009] The crushing motor is arranged on the crusher, and the output end of the crushing motor is fixedly mounted on the rotating crushing hammer to drive the rotating crushing hammer to rotate for crushing;

[0010] The feed port and the discharge port are both opened on the crusher;

[0011] Screening structure, arranged on the crusher, is used to control the size of the discharged stones;

[0012] A buffer structure is arranged on the screening structure to provide a buffer for the screening structure;

[0013] The switching structure is arranged on the screening structure and is used to adjust the size of the discharged stones;

[0014] The return material structure is arranged on the crusher and is used to transport the stones back to the crusher for secondary crushing.

[0015] Preferably, the screening structure comprises:

[0016] The arc frame is movably mounted on the inner wall of the crusher for installation and support. A connecting hole for discharging is provided on the arc frame.

[0017] The coarse-pore screening plate and the fine-pore screening plate are both movably mounted on the inner wall of the arc frame. The coarse-pore screening plate is fixedly mounted on the fine-pore screening plate. The coarse-pore screening plate is located in the connecting hole on the arc frame and is used to screen stones.

[0018] Two arc-shaped positioning bars are respectively arranged on the inner walls on both sides of the arc-shaped frame. The two arc-shaped positioning bars are movably installed on both sides of the coarse-pore screening plate and the fine-pore screening plate for guiding.

[0019] Preferably, the buffer structure comprises:

[0020] A connecting frame is arranged on the inner wall of the crusher;

[0021] A guide rod is arranged on the connecting frame and is used for positioning and guiding;

[0022] L-shaped connecting plate, slidably mounted on the guide rod and fixedly mounted on the arc frame;

[0023] The buffer spring is slidably sleeved on the guide rod, one end of the buffer spring is fixedly mounted on the connecting frame, and the other end of the buffer spring is fixedly mounted on the L-shaped connecting plate for buffering.

[0024] Preferably, the switching structure includes:

[0025] The arc-shaped tooth plate is arranged on the fine-pore sieve plate and is used to push the fine-pore sieve plate to move;

[0026] Two mounting brackets, both arranged on the curved frame, are used for support;

[0027] A connecting shaft is rotatably mounted on two mounting brackets to provide a rotation fulcrum;

[0028] The adjusting gear is fixedly sleeved on the connecting shaft and meshes with the arc-shaped tooth plate to drive the arc-shaped tooth plate to move;

[0029] The driving assembly is arranged on the connecting shaft and is used to drive the connecting shaft to rotate.

[0030] Preferably, the drive assembly comprises:

[0031] The switching motor is arranged on one side of a corresponding mounting frame, and the output end of the switching motor is fixedly mounted on one end of the connecting shaft.

[0032] Preferably, the recycling structure comprises:

[0033] Two fixed plates, both arranged on the crusher;

[0034] Two arc-shaped positioning rods are arranged on two fixed plates for limiting and guiding;

[0035] The receiving box is slidably mounted on two arc-shaped positioning rods and corresponds to the discharge port, and is used for receiving materials;

[0036] The support frame is arranged on one side of the receiving box;

[0037] The feeding assembly is arranged on the support frame and is used to control the movement of the material receiving box.

[0038] Preferably, the feeding assembly comprises:

[0039] The feeding motor is arranged on one side of the support frame and is used for driving;

[0040] The linkage gear is arranged on the output end of the feeding motor and is used for transmission;

[0041] The linkage rack is arranged on one side of the crusher and meshes with the linkage gear.

[0042] Preferably, the material receiving box is provided with two arc-shaped guide holes for limiting positioning, and two arc-shaped positioning rods are slidably installed in the two arc-shaped guide holes respectively.

[0043] The beneficial effects of the present invention are:

[0044] The utility model can realize the crushing of stones in a process in which the crushed stones have a size smaller than the sieve hole size of the coarse-hole sieve plate or the fine-hole sieve plate, and the coarse-hole sieve plate and the fine-hole sieve plate can be switched by turning on the switching motor. By respectively arranging sieve holes of different sizes on the coarse-hole sieve plate and the fine-hole sieve plate, different processing requirements can be met. At the same time, there is no need to stop and disassemble the crusher when switching, and the process is simpler and faster, thereby improving the crushing efficiency of the stones.

[0045] According to the utility model, after the stones are crushed and screened out by the coarse-pore sieve plate, the material can be received by the receiving box first, and then the sieve plate is switched to the fine-pore sieve plate. The feeding motor is turned on to move the receiving box to the feed port, and the material is poured back into the crusher for secondary crushing. At this time, the crushed stones need to meet the sieve hole size of the fine-pore sieve plate before they can fall out. This is done in two steps, thereby reducing the crushing difficulty and crushing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 A schematic structural diagram of a rotary crusher provided in an embodiment of the present utility model;

[0048] Figure 2 A schematic diagram of the partial structure of a rotary crusher provided in an embodiment of the present utility model;

[0049] Figure 3 A schematic cross-sectional view of a rotary crusher according to an embodiment of the present invention;

[0050] Figure 4 A schematic structural diagram of the arc-shaped tooth plate portion of the rotary crusher provided in an embodiment of the present utility model;

[0051] Figure 5 A schematic diagram of the arc frame structure of a rotary crusher provided in an embodiment of the present utility model;

[0052] Figure 6 A schematic cross-sectional view of the arc frame of the rotary crusher provided in an embodiment of the present utility model;

[0053] Figure 7 This is a schematic cross-sectional structural diagram of a material receiving box of a rotary crusher provided in an embodiment of the present utility model.

[0054] Description of reference numerals:

[0055] 1. Crusher; 2. Rotating breaker hammer; 3. Crushing motor; 4. Feed port; 5. Discharge port; 6. Arc frame; 601. Coarse-pore sieve plate; 602. Fine-pore sieve plate; 603. Arc positioning strip; 7. Connecting frame; 701. Guide rod; 702. L-shaped connecting plate; 703. Buffer spring; 8. Arc tooth plate; 801. Mounting frame; 802. Connecting shaft; 803. Adjusting gear; 804. Switching motor; 9. Fixed plate; 901. Arc positioning rod; 902. Receiving box; 903. Support frame; 904. Feeding motor; 905. Linkage gear; 906. Linkage rack; 907. Arc guide hole. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] Example 1:

[0058] like Figures 1 to 7As shown, the utility model provides a rotary crusher, comprising: a crusher 1, a rotary breaker 2 arranged on the inner wall of the crusher 1 for crushing stones, a crushing motor 3 arranged on the crusher 1 for driving the rotary breaker 2 to rotate for crushing, the output end of the crushing motor 3 is fixedly mounted on the rotary breaker 2, and a feed port 4 and a discharge port 5 are opened on the crusher 1.

[0059] In order to facilitate the adjustment of the specifications of the screen plate according to the required degree of crushing of the stone and avoid disassembling the crusher 1, a screening structure for controlling the size of the discharged stone is arranged on the crusher 1, a buffer structure for providing buffering for the screening structure is arranged on the screening structure, and a switching structure for adjusting the size of the discharged stone is arranged on the screening structure, which can realize automatic switching of screen plates of different specifications.

[0060] The screening structure includes a curved frame 6 movably mounted on the inner wall of the crusher 1 for mounting and supporting the curved frame 6, a connecting hole for discharging the material is opened on the curved frame 6, a coarse-pore screening plate 601 and a fine-pore screening plate 602 movably mounted on the inner wall of the curved frame 6 for screening the stones, the coarse-pore screening plate 601 is fixedly mounted on the fine-pore screening plate 602, the coarse-pore screening plate 601 is located in the connecting hole on the curved frame 6, and two curved plates for guiding are arranged on the inner walls of the curved frame 6 on both sides. The two arc-shaped positioning bars 603 are movably mounted on both sides of the coarse-pore sieve plate 601 and the fine-pore sieve plate 602, respectively. The stones that have been crushed to meet the requirements can fall from the discharge port 5 through the sieve holes on the coarse-pore sieve plate 601. The movement of the fine-pore sieve plate 602 can drive the coarse-pore sieve plate 601 to move, so that the coarse-pore sieve plate 601 can be moved out from the connecting hole of the arc-shaped frame 6, while the fine-pore sieve plate 602 corresponds to the connecting hole of the arc-shaped frame 6.

[0061] Among them, the buffer structure includes a connecting frame 7 arranged on the inner wall of the crusher 1, a guide rod 701 arranged on the connecting frame 7 for positioning and guiding, an L-shaped connecting plate 702 slidably mounted on the guide rod 701 and fixedly mounted on the arc frame 6, and a buffer spring 703 slidably sleeved on the guide rod 701 for buffering. One end of the buffer spring 703 is fixedly mounted on the connecting frame 7, and the other end of the buffer spring 703 is fixedly mounted on the L-shaped connecting plate 702. When the arc frame 6 is squeezed by stones, it will drive the two L-shaped connecting plates 702 to move. The L-shaped connecting plates 702 can move on the guide rod 701 and squeeze the buffer spring 703 to provide buffering for the arc frame 6.

[0062] Among them, the switching structure includes an arc-shaped tooth plate 8 arranged on the fine-pore screening plate 602 for pushing the fine-pore screening plate 602 to move, two mounting frames 801 arranged on the arc-shaped frame 6 for support, a connecting shaft 802 rotatably mounted on the two mounting frames 801 for providing a rotation fulcrum, an adjusting gear 803 fixedly sleeved on the connecting shaft 802 and engaged with the arc-shaped tooth plate 8 for driving the arc-shaped tooth plate 8 to move, and a driving component arranged on the connecting shaft 802 for driving the connecting shaft 802 to rotate. By turning on the switching motor 804, its output end can drive the adjusting gear 803 to rotate, so that the rotating adjusting gear 803 drives the arc-shaped tooth plate 8 to move, and the movable arc-shaped tooth plate 8 can push the fine-pore screening plate 602 to move, and switch the fine-pore screening plate 602 to drive the coarse-pore screening plate 601.

[0063] Among them, the driving component includes a switching motor 804 arranged on one side of a corresponding mounting bracket 801, and the output end of the switching motor 804 is fixedly installed on one end of the connecting shaft 802. The switching motor 804 can enable its output end to drive the connecting shaft 802 to rotate on the two mounting brackets 801, and the rotating connecting shaft 802 can drive the adjusting gear 803 to rotate.

[0064] Example 2:

[0065] On the basis of Example 1, in order to realize repeated crushing of stones and crush them more evenly and thoroughly, a return structure for transporting stones back into the crusher 1 for secondary crushing is arranged on the crusher 1.

[0066] Among them, the return material structure includes two fixed plates 9 arranged on the crusher 1, two arc-shaped positioning rods 901 arranged on the two fixed plates 9 for limiting and guiding, a material receiving box 902 slidably installed on the two arc-shaped positioning rods 901 and corresponding to the discharge port 5 for receiving materials, a support frame 903 arranged on one side of the material receiving box 902, and a feeding assembly arranged on the support frame 903 for controlling the movement of the material receiving box 902. By turning on the feeding motor 904, the material receiving box 902 can be driven to move along the edge of the crusher 1, and the moving material receiving box 902 can drive the received gravel blocks to move. During the process, the opening of the material receiving box 902 will be blocked by the outer wall of the crusher 1. When the material receiving box 902 moves to the feed port 4, it will be connected with it and be in an inclined state, so that the gravel blocks can be poured into the feed port 4 for secondary crushing.

[0067] Among them, the feeding assembly includes a feeding motor 904 arranged on one side of the support frame 903 for driving, a linkage gear 905 arranged on the output end of the feeding motor 904 for transmission, and a linkage rack 906 arranged on one side of the crusher 1 and meshing with the linkage gear 905. Two arc guide holes 907 for limiting are provided on the material receiving box 902, and two arc positioning rods 901 are slidably installed in the two arc guide holes 907 respectively. Turning on the feeding motor 904 can enable its output end to drive the linkage gear 905 to rotate, and the rotating linkage gear 905 can rotate and move in a circle around the linkage rack 906 by meshing with the linkage rack 906. At the same time, it will drive the material receiving box 902 to move along the edge of the crusher 1 through the support frame 903, and the moving material receiving box 902 can slide on the arc positioning rod 901 through the arc guide hole 907, thereby limiting the moving direction of the material receiving box 902.

[0068] Working principle: When in use, put the stone into the crusher 1 through the feed port 4, turn on the crushing motor 3 to drive the rotary breaker 2 to rotate, and the rotating rotary breaker 2 can crush the stone. During the crushing process, the stone will come into contact with the arc frame 6 and the coarse-hole screen plate 601. When the arc frame 6 is squeezed by the stone, it will drive the two L-shaped connecting plates 702 to move. The L-shaped connecting plates 702 can move on the guide rod 701 and squeeze the buffer spring 703 to provide a buffer for the arc frame 6. The stone that meets the requirements can pass through the sieve holes on the coarse-hole screen plate 601 and fall from the discharge port 5. After that, it falls into the receiving box 902. By turning on the feeding motor 904, its output end can drive the linkage gear 905 to rotate. The rotating linkage gear 905 can rotate and move in a circle around the linkage rack 906 by meshing with the linkage rack 906. At the same time, it will drive the receiving box 902 to move along the edge of the crusher 1 through the support frame 903. The continuously moving receiving box 902 can drive the received crushed stones to move. During the process, the opening of the receiving box 902 will be blocked by the outer wall of the crusher 1. When the receiving box 902 moves to the feed port 4, it will be connected with it and is in a tilting position. The inclined state enables the crushed stones to be poured into the feed port 4 for secondary crushing. At the same time, the discharge port 5 is no longer blocked by the receiving box 902. At this time, the crushed stones can fall out directly through the discharge port 5, so that the stones can be crushed more thoroughly and evenly. By turning on the switching motor 804, the output end thereof can drive the connecting shaft 802 to rotate on the two mounting brackets 801. The rotating connecting shaft 802 can drive the adjusting gear 803 to rotate, and the rotating adjusting gear 803 drives the arc gear plate 8 to move by meshing with the arc gear plate 8. The movable arc gear Plate 8 can push the fine-pore screening plate 602 to move, so that the fine-pore screening plate 602 drives the coarse-pore screening plate 601 to move, and finally the moved coarse-pore screening plate 601 can be moved out from the connecting hole of the arc frame 6, while the fine-pore screening plate 602 corresponds to the connecting hole of the arc frame 6. At this time, the crushed material needs to meet the size of the sieve holes on the fine-pore screening plate 602 before it can fall out, so that it is convenient to adjust according to the degree of crushing of the stone. It is also possible to use the coarse-pore screening plate 601 for preliminary crushing first, and then switch to the fine-pore screening plate 602 for further crushing, so as to avoid disassembling and replacing the crusher 1.

[0069] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. Rotary crusher, characterized in that, include: Crusher (1); A rotary breaker hammer (2) is arranged on the inner wall of the crusher (1) and is used to crush stones; A crushing motor (3) is arranged on the crusher (1), and an output end of the crushing motor (3) is fixedly mounted on the rotary crushing hammer (2) for driving the rotary crushing hammer (2) to rotate and perform crushing; The feed port (4) and the discharge port (5) are both provided on the crusher (1); A screening structure is arranged on the crusher (1) and is used to control the size of the discharged stones; A buffer structure is arranged on the screening structure to provide a buffer for the screening structure; The switching structure is arranged on the screening structure and is used to adjust the size of the discharged stones; The material return structure is arranged on the crusher (1) and is used to transport the stones back into the crusher (1) for secondary crushing.

2. The rotary crusher according to claim 1, characterized in that The screening structure comprises: An arc frame (6) is movably mounted on the inner wall of the crusher (1) for mounting and supporting, and a connecting hole for discharging is provided on the arc frame (6); The coarse-pore screening plate (601) and the fine-pore screening plate (602) are both movably mounted on the inner wall of the arc frame (6). The coarse-pore screening plate (601) is fixedly mounted on the fine-pore screening plate (602). The coarse-pore screening plate (601) is located in the communicating hole on the arc frame (6) and is used for screening stones. Two arc-shaped positioning bars (603) are respectively arranged on the inner walls on both sides of the arc-shaped frame (6). The two arc-shaped positioning bars (603) are movably installed on both sides of the coarse-pore screening plate (601) and the fine-pore screening plate (602) for guidance.

3. The rotary crusher according to claim 1, characterized in that The buffer structure comprises: A connecting frame (7) is arranged on the inner wall of the crusher (1); A guide rod (701) is arranged on the connecting frame (7) and is used for positioning and guiding; An L-shaped connecting plate (702) is slidably mounted on the guide rod (701) and fixedly mounted on the arc frame (6); The buffer spring (703) is slidably sleeved on the guide rod (701), one end of the buffer spring (703) is fixedly mounted on the connecting frame (7), and the other end of the buffer spring (703) is fixedly mounted on the L-shaped connecting plate (702) for buffering.

4. The rotary crusher according to claim 1, characterized in that The switching structure includes: An arc-shaped tooth plate (8) is arranged on the fine-pore sieve plate (602) and is used to push the fine-pore sieve plate (602) to move; Two mounting frames (801), both arranged on the arc frame (6), are used for support; A connecting shaft (802) is rotatably mounted on the two mounting frames (801) to provide a rotation fulcrum; An adjusting gear (803) is fixedly sleeved on the connecting shaft (802) and meshes with the arc-shaped toothed plate (8) to drive the arc-shaped toothed plate (8) to move; The driving assembly is arranged on the connecting shaft (802) and is used to drive the connecting shaft (802) to rotate.

5. The rotary crusher according to claim 4, characterized in that The drive assembly includes: The switching motor (804) is arranged on one side of a corresponding mounting frame (801), and the output end of the switching motor (804) is fixedly mounted on one end of the connecting shaft (802).

6. The rotary crusher according to claim 1, characterized in that The recycling structure includes: Two fixed plates (9), both arranged on the crusher (1); Two arc-shaped positioning rods (901) are arranged on the two fixing plates (9) and are used for limiting and guiding; A material receiving box (902) is slidably mounted on two arc-shaped positioning rods (901) and corresponds to the discharge port (5) for receiving materials; A support frame (903) is arranged on one side of the receiving box (902); The feeding assembly is arranged on the support frame (903) and is used to control the movement of the receiving box (902).

7. The rotary crusher according to claim 6, characterized in that The feeding assembly comprises: A feeding motor (904) is arranged on one side of the support frame (903) for driving; A linkage gear (905) is arranged on the output end of the feeding motor (904) for transmission; The linkage rack (906) is arranged on one side of the crusher (1) and meshes with the linkage gear (905).

8. The rotary crusher according to claim 6, characterized in that The material receiving box (902) is provided with two arc-shaped guide holes (907) for limiting, and two arc-shaped positioning rods (901) are slidably installed in the two arc-shaped guide holes (907) respectively.

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