Discharging and screening mechanism for crusher

Abstract

The utility model discloses a discharge screening mechanism for a crusher, which belongs to the technical field of discharge screening devices and comprises a first screening cylinder, a second screening cylinder and a third screening cylinder. Discharging assemblies are distributed on the side faces of the first screening barrel, the second screening barrel and the third screening barrel in a staggered mode, screening assemblies are rotationally connected to the inner walls of the first screening barrel, the second screening barrel and the third screening barrel correspondingly, rotating shafts are detachably connected to the centers of the screening assemblies, and bolt holes are formed in the surfaces of the rotating shafts. The screening assembly can be driven to rotate through the arranged rotating shaft and the arranged rotating motor, then the screening efficiency of the materials is improved, meanwhile, noise can be avoided, through the arranged baffle and the arranged discharging nozzle, the screened materials can be intercepted when the screening assembly rotates, the screened materials are rapidly guided out through the discharging nozzle, and the discharging convenience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of discharge screening devices, and more specifically, to a discharge screening mechanism for a crusher. Background Technology

[0002] A crusher, also known as a stone crusher, is a type of pulverizing machinery used to break large pieces of material into smaller particles. Crushers are widely used in mining, building materials, highways, railways, water conservancy and other fields.

[0003] Currently, some commonly used crusher discharge screening devices increase screening efficiency through vibration, but this generates noise pollution and makes it difficult to quickly discharge screened materials. For example, CN209124136U discloses a steel scrap crusher discharge screening device, which includes a screening box. The top outer wall of the screening box has a through hole, and a feed pipe is inserted into the inner wall of the through hole. One side outer wall of the screening box has a motor box, and the inner wall of the motor box has a rotating mechanism. The inner walls of both sides of the screening box have the same primary screen, and one side outer wall of the screening box has a second through hole.

[0004] As can be seen from the above-disclosed scheme, the device uses components such as lifting blocks to vibrate the screen to screen material particles, which will generate vibration noise. Moreover, the material screened by each screen is not easy to be quickly discharged, which brings great inconvenience to the use. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a discharge screening mechanism for a crusher. This discharge screening mechanism for a crusher can drive the screening component to rotate through a set rotating shaft and a rotating motor, thereby accelerating the screening efficiency of materials and avoiding noise generation. Furthermore, through the set baffle and discharge nozzle, the screened material can be intercepted when the screening component rotates and quickly discharged through the discharge nozzle, improving the convenience of discharge.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A discharge screening mechanism for a crusher includes a discharge screening mechanism body, which comprises a first screening cylinder, a second screening cylinder, and a third screening cylinder. Discharge components are staggered on the sides of the first, second, and third screening cylinders. Screening components are rotatably connected to the inner walls of each of the first, second, and third screening cylinders. A rotating shaft is detachably connected to the center of each screening component. Bolt holes are opened on the surface of the rotating shaft, and a rotary motor is fixedly connected to one end of the rotating shaft. This discharge screening mechanism for a crusher can drive the screening components to rotate through the rotating shaft and rotary motor, thereby accelerating the screening efficiency of materials and avoiding noise generation. Furthermore, through the baffle and discharge nozzle, the screened materials can be intercepted when the screening components rotate and quickly discharged through the discharge nozzle, improving the convenience of discharge.

[0008] Furthermore, the screening assembly includes a screening plate, a limiting ring is fixedly connected to the outer side of the screening plate, the surface of the limiting ring has a locking hole, the inner wall of the locking hole is rotatably connected to a ball, the surface of the screening plate is provided with a filter screen, the filter screen is used to filter crushed materials, the bottom of the filter screen is provided with a reinforcing rib, one end of the reinforcing rib is fixedly connected to the surface of the conical cover to increase the support strength of the filter screen.

[0009] Furthermore, the discharge assembly includes a discharge nozzle, one end of which is provided with a connecting part and a discharge hole. A baffle is fixedly connected to one end of the discharge nozzle, and the bottom of the baffle is slidably connected to the surface of the filter screen, so that when the filter screen rotates, the material screened by it can be intercepted and enter the discharge hole.

[0010] Furthermore, the inner walls of the first screening cylinder, the second screening cylinder, and the third screening cylinder are all provided with sliding grooves, and the inner walls of the sliding grooves are provided with guide grooves. The inner walls of the guide grooves are in rolling connection with the surface of the ball, and the ball can reduce the friction intensity between the limiting ring and the sliding groove.

[0011] Furthermore, a conical cover is fixedly connected to the middle of the filter screen, the surface of the conical cover has through holes, and a top plate is fixedly connected to one end of the conical cover. The conical cover has the functions of filtering and guiding flow.

[0012] Furthermore, the first screening cylinder, the second screening cylinder, and the third screening cylinder all have openings on their sides, and the inner walls of the openings are fixedly connected to the surface of the connecting part.

[0013] Furthermore, a reinforcing sleeve is fixedly fitted in the middle of the top plate. One end of the reinforcing sleeve has an axially penetrating sleeve hole. The sleeve hole is polygonal and is inserted into the rotating shaft and fastened with bolts, so that the top plate has the function of rotation.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution can drive the screening components to rotate by setting a rotating shaft and a rotating motor, thereby accelerating the screening efficiency of materials and avoiding the generation of noise.

[0016] (2) This solution can intercept the screened material when the screening component rotates by setting baffles and discharge nozzles, and quickly discharge the material through the discharge nozzle, thus improving the convenience of material discharge. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the screening component structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the first screening cylinder structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the material discharge component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating shaft structure of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Body of the discharge screening mechanism; 2. First screening cylinder; 21. Opening; 22. Slide groove; 23. Guide groove; 3. Second screening cylinder; 4. Third screening cylinder; 5. Screening assembly; 51. Screening plate; 52. Filter screen; 53. Limiting ring; 54. Ball bearing; 55. Conical cover; 56. Through hole; 57. Top plate; 58. Reinforcing sleeve; 59. Sleeve hole; 6. Discharge assembly; 61. Discharge nozzle; 62. Connecting part; 63. Baffle; 64. Discharge hole; 7. Rotary motor; 71. Rotating shaft; 72. Bolt hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-5A discharge screening mechanism for a crusher includes a discharge screening mechanism body 1, which includes a first screening cylinder 2, a second screening cylinder 3, and a third screening cylinder 4. The outer sides of the first screening cylinder 2, the second screening cylinder 3, and the third screening cylinder 4 are connected and fixed to the crusher. The mesh size of the filter screen 52 installed inside the first screening cylinder 2, the second screening cylinder 3, and the third screening cylinder 4 decreases from top to bottom, so that the material particles screened by the first screening cylinder 2 are the largest and the material particles screened by the third screening cylinder 4 are the smallest. Discharge components 6 are staggered on the sides of the first screening cylinder 2, the second screening cylinder 3, and the third screening cylinder 4. The discharge components 6 include a discharge nozzle 61, a connecting part 62 at one end of the discharge nozzle 61, a discharge hole 64 at one end of the discharge nozzle 61, and a baffle 63 fixedly connected to one end of the discharge nozzle 61. The bottom of the baffle 63 is slidably connected to the surface of the filter screen 52. When the filter screen 52 rotates, it intercepts the screened material and sends it into the discharge hole 64. The inner walls of the first screening cylinder 2, the second screening cylinder 3, and the third screening cylinder 4 are all rotatably connected to screening components 5. Screening components 5 include screening plates 51. A limit ring 53 is fixedly connected to the outer side of the screening plate 51. The surface of the limit ring 53 has a locking hole. A ball bearing 54 is rotatably connected to the inner wall of the locking hole. The surface of the screening plate 51 is provided with a filter screen 52, which is used to filter crushed materials. The bottom of the filter screen 52 is provided with reinforcing ribs. One end of the reinforcing ribs is fixedly connected to the surface of the conical cover 55 to increase the support strength of the filter screen 52. The center of the screening component 5 is detachably connected to a rotating shaft 71. The surface of the rotating shaft 71 has bolt holes 72. One end of the rotating shaft 71 is fixedly connected to a rotating motor 7. One end of the rotating motor 7 is fastened to the crusher by bolts, so that the rotating shaft 71 can drive the screening plate 51 to rotate and screen the material.

[0027] The inner walls of the first screening cylinder 2, the second screening cylinder 3, and the third screening cylinder 4 are all provided with sliding grooves 22. The inner walls of the sliding grooves 22 are provided with guide grooves 23. The inner walls of the guide grooves 23 are in rolling connection with the surface of the ball bearings 54. The ball bearings 54 can reduce the friction intensity between the limiting ring 53 and the sliding grooves 22. A conical cover 55 is fixedly connected to the middle of the filter screen 52. The surface of the conical cover 55 is provided with through holes 56. One end of the conical cover 55 is fixedly connected with a top plate 57. The conical cover 55 has the functions of filtering and guiding.

[0028] The first screening cylinder 2, the second screening cylinder 3, and the third screening cylinder 4 all have openings 21 on their sides. The inner wall of the opening 21 is fixedly connected to the surface of the connecting part 62. A reinforcing sleeve 58 is fixedly sleeved in the middle of the top plate 57. One end of the reinforcing sleeve 58 has an axially penetrating sleeve hole 59. The sleeve hole 59 is polygonal and is inserted into the rotating shaft 71 and fastened with bolts, so that the top plate 57 has the function of rotation.

[0029] When the discharge screening mechanism used on the crusher is in use, the crushed material particles fall downward into the first screening cylinder 2 and roll down along the conical cover 55 to the surface of the filter screen 52. At the same time, the rotating motor 7 drives the rotating shaft 71 to rotate. The rotation of the rotating shaft 71 drives the top plate 57 to rotate, and the rotation of the top plate 57 drives the conical cover 55 and the filter screen 52 to rotate. The rotation of the conical cover 55 and the filter screen 52 causes the larger crushed material particles to be intercepted in the first screening cylinder 2. At the same time, the rotation of the conical cover 55 and the filter screen 52 causes the material particles intercepted on the surface of the filter screen 52 to come into contact with the baffle 63. The baffle 63 intercepts the material and enters the discharge hole 64. Then, the screened material particles are quickly discharged through the discharge nozzle 61. The material particles that fall downward into the second screening cylinder 3 through the mesh and through holes 56 are screened and discharged again. The smallest material particles that continue to fall downward are screened and discharged for the third time in the third screening cylinder 4.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A discharge screening mechanism for a crusher, comprising a discharge screening mechanism body (1), characterized in that: The main body (1) of the discharge screening mechanism includes a first screening cylinder (2), a second screening cylinder (3) and a third screening cylinder (4). Discharge components (6) are staggered on the sides of the first screening cylinder (2), the second screening cylinder (3) and the third screening cylinder (4). Screening components (5) are rotatably connected to the inner walls of the first screening cylinder (2), the second screening cylinder (3) and the third screening cylinder (4). A rotating shaft (71) is detachably connected to the center of the screening component (5). Bolt holes (72) are opened on the surface of the rotating shaft (71). A rotary motor (7) is fixedly connected to one end of the rotating shaft (71).

2. The discharge screening mechanism for a crusher according to claim 1, characterized in that: The screening component (5) includes a screening plate (51), a limiting ring (53) is fixedly connected to the outer side of the screening plate (51), the surface of the limiting ring (53) has a locking hole, the inner wall of the locking hole is rotatably connected to a ball (54), and a filter screen (52) is provided on the surface of the screening plate (51).

3. The discharge screening mechanism for a crusher according to claim 1, characterized in that: The discharge assembly (6) includes a discharge nozzle (61), one end of which is provided with a connecting part (62), one end of which is provided with a discharge hole (64), and one end of which is fixedly connected with a baffle (63).

4. The discharge screening mechanism for a crusher according to claim 2, characterized in that: The inner walls of the first screening cylinder (2), the second screening cylinder (3) and the third screening cylinder (4) are all provided with sliding grooves (22), and the inner walls of the sliding grooves (22) are provided with guide grooves (23), and the inner walls of the guide grooves (23) are in rolling connection with the surface of the ball (54).

5. A discharge screening mechanism for a crusher according to claim 2, characterized in that: A conical cover (55) is fixedly connected to the middle of the filter screen (52). The surface of the conical cover (55) has a through hole (56). A top plate (57) is fixedly connected to one end of the conical cover (55).

6. The discharge screening mechanism for a crusher according to claim 1, characterized in that: The first screening cylinder (2), the second screening cylinder (3) and the third screening cylinder (4) all have openings (21) on their sides, and the inner wall of the opening (21) is fixedly connected to the surface of the connecting part (62).

7. A discharge screening mechanism for a crusher according to claim 5, characterized in that: A reinforcing sleeve (58) is fixedly sleeved in the middle of the top plate (57), and one end of the reinforcing sleeve (58) has an axially penetrating sleeve hole (59).

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