Noise reduction structure of crusher

Abstract

The utility model provides a noise reduction structure of a crusher, and belongs to the technical field of crushers. The noise reduction structure solves the problem that an existing noise reduction structure of the crusher is poor in noise reduction effect. According to the noise reduction structure of the crusher, the crusher comprises a feeding shell with a feeding port formed in one side, the noise reduction structure comprises at least one material blocking plate, the material blocking plates are arranged on the inner side wall of the other side of the feeding shell, the material blocking plates are obliquely arranged towards the feeding port from top to bottom, and the noise reduction structure further comprises noise reduction plates corresponding to the material blocking plates in a one-to-one mode. One end of the noise reduction plate is fixedly connected with the inner side wall of the other side of the feeding shell, the other end of the noise reduction plate is fixedly connected with the material blocking plate, and a closed sound insulation cavity is defined by the material blocking plate, the noise reduction plate and the inner side wall of the feeding shell. According to the noise reduction structure of the crusher, noise reduction can be achieved by arranging the sound insulation cavity in a targeted mode, and then the noise reduction effect at the position of the material baffle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushers and relates to a noise reduction structure of a crusher. Background Art

[0002] Waste or residual materials generated in daily life or production are usually crushed by a crusher before being processed, making the storage and transportation of waste more convenient. Existing crushers usually use single rollers or double rollers. When the waste enters the crusher from the feed port, it will collide with the feed shell of the crusher. In order to ensure that the waste entering the crusher can be stably introduced into the crushing chamber and crushed by the roller cutter, a baffle plate is usually set on the upper shell of the crusher.

[0003] For example, the Chinese patent application [application publication number: CN108580001A] discloses a dust-proof, noise-reducing and safe impact crusher system, including a casing, a motor, a dust removal tank, an impact plate, a plate hammer, a material conveying device and a discharge port, a discharge port is arranged at the bottom end of the casing, a material screen is arranged inside the discharge port, a baffle is arranged at the upper end of the discharge port, an upper top plate is arranged at the upper end of the baffle, an impact plate is arranged at the lower end of the upper top plate, a crushing chamber is arranged between the baffle, the upper top plate and the impact plate, a main shaft is arranged at the center of the crushing chamber, and sound-absorbing cotton is arranged inside the casing.

[0004] The above structure is designed by arranging an impact plate at the lower end of the upper top plate, so that the impact plate can guide and collide with the waste, thereby further improving the crushing efficiency of the crusher. However, in actual use, due to the design of the impact plate, the noise generated by the collision between the waste and the impact plate is relatively large. The above structure is designed by arranging sound-absorbing cotton on the outer shell, although it can reduce the noise of the outer shell, the noise at the impact plate is the loudest, and the sound-absorbing cotton reduces the noise of the whole, but the local noise reduction effect of the impact plate is not obvious, so the noise reduction effect of the upper top plate is limited, and after long-term use, the sound-absorbing cotton will age and other problems, thereby affecting the noise reduction effect of the crusher after long-term use. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and propose a noise reduction structure for a crusher. The technical problem to be solved by the utility model is: how to solve the problem that the noise reduction effect of the existing noise reduction structure for a crusher is not good.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A noise reduction structure for a crusher, the crusher includes a feed shell with a feed port on one side, the noise reduction structure includes at least one baffle plate, the baffle plate is arranged on the inner side wall on the other side of the feed shell, and is characterized in that the baffle plates are all inclined from top to bottom toward the feed port, the noise reduction structure also includes noise reduction plates arranged in a one-to-one correspondence with the baffle plates, one end of the noise reduction plate is fixedly connected to the inner side wall on the other side of the feed shell, and the other end is fixedly connected to the baffle plate, the baffle plate, the noise reduction plate and the inner side wall of the feed shell together form a closed sound insulation cavity.

[0008] Waste enters the crusher from the feed shell, and enters the crusher for crushing through the guidance of the feed shell. When processing waste, it is usually thrown directly from the feed port of the feed shell, and most of the waste will hit the baffle plate. By guiding the baffle plate inclined toward the feed port, the waste can quickly enter the crusher, and a large noise will be generated when it hits. Therefore, a noise reduction plate is fixedly connected to the inner wall on the other side of the feed shell, and the other end of the noise reduction plate is fixedly connected to the baffle plate. At this time, the baffle plate, the noise reduction plate and the inner wall of the feed shell are combined to form a sound insulation cavity. The sound insulation cavity is closed, thereby isolating the impact noise from the outside world, and the sound insulation cavity is directly set at the baffle plate. Noise reduction can be achieved by setting the sound insulation cavity in a targeted manner, thereby improving the noise reduction effect at the baffle plate.

[0009] In the noise reduction structure of the above-mentioned crusher, the feed shell includes a mounting plate for installing a noise reduction plate and a baffle plate and side plates connected to the left and right sides of the mounting plate. The two ends of the noise reduction plate and the two ends of the baffle plate are respectively fixedly connected to the side plates and close the sound insulation cavity.

[0010] The setting of this structure increases the space of the sound insulation cavity and closes it directly through the existing side panels, making the installation of the noise reduction plate and the material baffle plate more convenient, further improving the noise reduction effect and facilitating the installation of the noise reduction structure.

[0011] In the noise reduction structure of the above-mentioned crusher, the noise reduction plate is connected to the inner side wall of the lower end portion of the baffle plate, and the lower end surface of the baffle plate is located below the noise reduction plate.

[0012] The lower end surface of the material baffle plate is located below the noise reduction plate, so that the material baffle plate covers the entire noise reduction plate. When the waste material collides with the material baffle plate, it will not affect the noise reduction plate, thereby ensuring the stability of the entire sound insulation cavity and improving the stability of noise reduction at the material baffle plate.

[0013] In the noise reduction structure of the above-mentioned crusher, a plurality of the baffle plates are provided, the inclination angles of the plurality of baffle plates are the same, and the plurality of baffle plates are sequentially distributed along the height direction of the feed shell.

[0014] By setting up multiple baffle plates, the impact of waste on one of the baffle plates is reduced, and the waste is guided layer by layer. At the same time, by setting up multiple sound insulation cavities, noise reduction of multiple baffle plates can be achieved, further improving the noise reduction effect of the noise reduction structure.

[0015] In the noise reduction structure of the above-mentioned crusher, the crusher includes a crushing shell, in which a guide curved plate connected to the mounting plate and a rotatably connected crushing roller are arranged, a discharge space for waste materials is provided between the guide curved plate and the crushing roller, a plurality of noise reduction strips are connected to the outer side wall of the guide curved plate, and the noise reduction strips have a closed noise reduction space.

[0016] The baffle plate blocks the waste materials from falling into the discharge space of the crushing shell after collision, and the rotation of the crushing roller drives the waste materials to rub against the guide curved plate. Therefore, the noise reduction strip is set to isolate the friction noise, making the noise of the entire crusher smaller and achieving a better noise reduction effect.

[0017] In the noise reduction structure of the above-mentioned crusher, the length direction of the noise reduction strip is distributed along the width direction of the guide curved plate, and a plurality of noise reduction strips are distributed along the circumference of the guide curved plate.

[0018] The length direction of the noise reduction strip is set so that the noise reduction space of the noise reduction strip is larger and the isolation effect is better, thereby enhancing the noise reduction effect on the guide curved plate.

[0019] In the noise reduction structure of the above-mentioned crusher, one side of the feed shell is provided with a material guide plate and a connecting plate connected to the upper end of the crushing shell, the material guide plate is located below the feed port, the material guide plate is arranged inclined inward from the upper end to the lower end, the lower end portion of the material guide plate extends into the inner cavity of the feed shell, and the material guide plate is arranged opposite to the material baffle plate.

[0020] The guide plate is arranged inwardly from top to bottom, so that the waste material entering the feed shell from the feed port can be guided by the guide plate to directly collide with the baffle plate, and then fall into the crushing shell for further crushing, and the lower end of the guide plate extends into the shell, which further improves the guiding effect and makes the crusher have a better guiding effect.

[0021] Compared with the prior art, the noise reduction structure of this crusher has the following advantages:

[0022] 1. By fixing the other end of the noise reduction plate to the baffle plate, the baffle plate, the noise reduction plate and the inner side wall of the feed shell are combined to form a sound insulation cavity, and the sound insulation cavity is closed, thereby isolating the impact noise from the outside world, and directly setting the sound insulation cavity at the baffle plate, the noise reduction can be achieved by setting the sound insulation cavity in a targeted manner, thereby improving the noise reduction effect at the baffle plate.

[0023] 2. The baffle plate blocks the waste materials from falling into the discharge space of the crushing shell after collision. The rotation of the crushing roller drives the waste materials to rub against the guide curved plate. Therefore, the noise reduction strip is set to isolate the friction noise, making the noise of the entire crusher smaller and achieving a better noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model after assembly.

[0025] Figure 2 It is a top view of the utility model after assembly.

[0026] Figure 3 yes Figure 2 Sectional view of AA.

[0027] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0028] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle.

[0029] Figure 6 It is a partial structural schematic diagram of the utility model after assembly.

[0030] In the figure, 1. crushing shell; 11. crushing chamber; 12. guide curved plate; 13. crushing roller; 14. discharge space; 15. noise reduction strip; 15a. noise reduction space; 2. feed shell; 21. feed port; 22. mounting plate; 23. guide plate; 24. connecting plate; 25. inner cavity; 26. side plate; 3. baffle plate; 4. noise reduction plate; 5. sound insulation cavity. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] like Figure 1 As shown, the noise reduction structure of the crusher includes a crushing shell 1 with a crushing chamber 11 and a feed shell 2 with a feed port 21 on one side, the lower end of the feed shell 2 is connected to the upper end of the crushing shell 1, and the inner cavity 25 of the feed shell 2 is connected to the crushing chamber 11. The noise reduction structure includes at least one baffle plate 3, which is arranged on the inner wall of the other side of the feed shell 2.

[0033] Specifically, Figure 1-6As shown, the baffle plates 3 are all inclined from top to bottom toward the feed port 21. The noise reduction structure also includes noise reduction plates 4 arranged in a one-to-one correspondence with the baffle plates 3. One end of the noise reduction plate 4 is fixedly connected to the inner wall of the other side of the feed shell 2, and the other end is fixedly connected to the baffle plate 3. The baffle plate 3, the noise reduction plate 4 and the inner wall of the feed shell 2 together form a sound insulation cavity 5.

[0034] The waste enters the crusher from the feed shell 2, and is guided by the feed shell 2 to enter the crusher for crushing. When processing the waste, the waste is usually thrown directly from the feed port 21 of the feed shell 2, and most of the waste will hit the baffle plate 3. By guiding the baffle plate 3 inclined toward the feed port 21, the waste can quickly enter the crusher, and a large noise will be generated when it hits. Therefore, a noise reduction plate 4 is fixedly connected to the inner wall on the other side of the feed shell 2, and the other end of the noise reduction plate 4 is fixedly connected to the baffle plate 3. At this time, the baffle plate 3, the noise reduction plate 4 and the inner wall of the feed shell 1 are surrounded by a sound insulation chamber 5, and the sound insulation chamber 5 is closed, thereby isolating the impact noise from the outside world, and the sound insulation chamber 5 is directly set at the baffle plate 3. Noise reduction can be achieved by specifically setting the sound insulation chamber 5, thereby improving the noise reduction effect at the baffle plate 3.

[0035] like Figure 1-4 As shown, the feed shell 2 includes a mounting plate 22 for mounting the noise reduction plate 4 and the baffle plate 3 and side plates 26 connected to the left and right sides of the mounting plate 22. The two ends of the noise reduction plate 4 and the two ends of the baffle plate 3 are respectively fixedly connected to the side plates 26 and close the sound insulation cavity 5. The noise reduction plate 4 is connected to the inner side wall of the lower end of the baffle plate 3, and the lower end surface of the baffle plate 3 is located below the noise reduction plate 4. A plurality of baffle plates 3 are provided, and the inclination angles of the plurality of baffle plates 3 are the same. The plurality of baffle plates 3 are distributed in sequence along the height direction of the feed shell 2. One side of the feed shell 2 is provided with a guide plate 23 and a connecting plate 24 connected to the upper end of the crushing shell 1. The guide plate 23 is located below the feed port 21. The guide plate 23 is inclined inwardly arranged from the upper end to the lower end. The lower end portion of the guide plate 23 extends into the inner cavity 25 of the feed shell 2, and the guide plate 23 is arranged opposite to the baffle plate 3.

[0036] like Figure 2 , Figure 5 and Figure 6 As shown, the crusher includes a crushing shell 1, in which a guide curved plate 12 connected to a mounting plate 22 and a rotatably connected crushing roller 13 are arranged, a discharge space 14 for placing waste materials is provided between the guide curved plate 12 and the crushing roller 13, a plurality of noise reduction strips 15 are connected to the outer wall of the guide curved plate 12, the noise reduction strips 15 have a closed noise reduction space 15a, the length direction of the noise reduction strips 15 is distributed along the width direction of the guide curved plate 12, and the plurality of noise reduction strips 15 are distributed circumferentially along the guide curved plate 12.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A noise reduction structure for a crusher, the crusher comprising a feed shell (2) with a feed opening (21) on one side, the noise reduction structure comprising at least one baffle plate (3), the baffle plate (3) being arranged on the inner side wall of the other side of the feed shell (2), characterized in that: The baffle plates (3) are all arranged to be inclined from top to bottom toward the feed port (21). The noise reduction structure also includes noise reduction plates (4) arranged in a one-to-one correspondence with the baffle plates (3). One end of the noise reduction plate (4) is fixedly connected to the inner side wall of the other side of the feed shell (2), and the other end is fixedly connected to the baffle plate (3). The baffle plate (3), the noise reduction plate (4) and the inner side wall of the feed shell (2) together form a closed sound insulation cavity (5).

2. The noise reduction structure of the crusher according to claim 1, characterized in that: The feed shell (2) comprises a mounting plate (22) on which a noise reduction plate (4) and a material baffle plate (3) can be mounted, and side plates (26) connected to the left and right sides of the mounting plate (22); the two ends of the noise reduction plate (4) and the two ends of the material baffle plate (3) are respectively fixedly connected to the side plates (26) and close the sound insulation cavity (5).

3. The noise reduction structure of the crusher according to claim 1, characterized in that: The noise reduction plate (4) is connected to the inner side wall of the lower end of the material baffle plate (3), and the lower end surface of the material baffle plate (3) is located below the noise reduction plate (4).

4. The noise reduction structure of a crusher according to claim 1, 2 or 3, characterized in that: A plurality of the material baffle plates (3) are provided, the plurality of material baffle plates (3) have the same inclination angle, and the plurality of material baffle plates (3) are distributed in sequence along the height direction of the feed shell (2).

5. The noise reduction structure of a crusher according to claim 2, characterized in that: The crusher comprises a crushing shell (1), wherein a guide curved plate (12) connected to a mounting plate (22) and a rotatably connected crushing roller (13) are arranged in the crushing shell (1), a discharge space (14) for placing waste materials is provided between the guide curved plate (12) and the crushing roller (13), a plurality of noise reduction strips (15) are connected to the outer side wall of the guide curved plate (12), and the noise reduction strips (15) have a closed noise reduction space (15a).

6. The noise reduction structure of a crusher according to claim 5, characterized in that: The length direction of the noise reduction strip (15) is distributed along the width direction of the guide curved plate (12), and a plurality of noise reduction strips (15) are distributed along the circumference of the guide curved plate (12).

7. The noise reduction structure of a crusher according to claim 5, characterized in that: One side of the feed shell (2) is provided with a material guide plate (23) and a connecting plate (24) connected to the upper end of the crushing shell (1); the material guide plate (23) is located below the feed port (21); the material guide plate (23) is arranged in an inclined manner inward from the upper end to the lower end; the lower end portion of the material guide plate (23) extends into the inner cavity (25) of the feed shell (2); and the material guide plate (23) is arranged opposite to the material blocking plate (3).

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