Vibrating screen
By adopting structures such as columns, springs, barrier rods, spray pipes and cable-stayed square tubes in the vibrating screen, the problem of easy damage to the screen mesh and support frame in the vibrating screen is solved, and more efficient material screening and stronger equipment reliability are achieved.
Patent Information
- Application Number
- CN202420569559.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-22
AI Technical Summary
During the ore crushed material screening process, the screen mesh is prone to cracking and damage due to material impact, and the strength and stiffness of the support beam are low, which is prone to breaking, resulting in damage to the screen mesh.
A vibrating screen is designed, and the screen housing is supported by multiple columns and spring structures, and a spaced stop rod and a spray pipe are provided, and the screen support structure consisting of a cable-stayed square tube and a support square tube is improved to improve the strength and stiffness of the support structure.
It effectively prevents the local concentration of materials on the screen, slows down the drop speed of materials, improves the screening quality, and avoids cracking and damage of the screen and support frame by enhancing the strength and stiffness of the support structure.
Smart Images
Figure CN222568348U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening, in particular to a vibrating screen. Background Art
[0002] Vibrating screen is one of the more commonly used screening equipment in mining machinery. The vibrating screen is usually driven by a vibrator or a vibration motor to vibrate the entire vibrating screen to achieve material screening. During the use of existing vibrating screens, the screens often crack and break. The reason is that: vibrating screens are usually used for screening ore fragments. Ore fragments are heavy and contain large pieces of gravel. When feeding, the materials are easy to impact the screen and damage the screen; on the other hand, in existing vibrating screens, the supporting beams at the bottom of the screen are generally made of seamless steel pipes, with flanges welded at both ends, and connected to the side plates with bolts or rivets. This type of supporting beam has a simple structure and is easy to make, but its low strength and rigidity make the supporting beam itself easy to crack or even break, which in turn causes the screen to crack and break. In order to overcome this technical problem, the utility model provides a vibrating screen. Utility Model Content
[0003] The utility model aims to provide a vibrating screen, so as to effectively protect the screen and prevent the screen from cracking and damage.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A vibrating screen comprises a base frame and a screening material casing, wherein the screening material casing is tiltedly arranged on the base frame, a plurality of columns are arranged on both sides of the base frame, springs are arranged on the tops of the columns at both ends of the base frame, a connecting seat is arranged on the side of the screening material casing, the bottom surface of the connecting seat is connected to the top of the spring, and a vibration mechanism for driving the screening material casing to vibrate is arranged on the middle column; a screen is detachably arranged in the screening material casing, a screen supporting structure for supporting the screen is connected at intervals between the two inner walls of the screening material casing, and an ash baffle is hingedly arranged on the top of the screening material casing, the length of the ash baffle is less than the length of the screening material casing so that a feed inlet is formed on the upper part of the screening material casing, a baffle rod and a baffle plate are arranged between the two inner walls of the screening material casing, the baffle rods are arranged at intervals and located at the feed inlet, and the baffle plate is located near the last baffle rod, and baffle bars are respectively arranged on the two inner walls of the screening material casing, the baffle bars are in contact with the screen, and the baffle bars are inclined and have different inclination directions;
[0006] The screen support structure comprises an inclined square tube and a supporting square tube. There are two supporting square tubes. The inclined square tube is connected between the two supporting square tubes in an "eight" shape. Connecting flanges are arranged at both ends of the supporting square tube.
[0007] Furthermore, a material guide trough is provided at the lower port of the screening machine housing, the material guide trough is connected to the bottom edge of the screen, and the bottom surface of the material guide trough is an inclined surface.
[0008] Furthermore, a spray pipe is arranged in the screening machine housing, spray holes are arranged at intervals on the spray pipe and the spray holes face the screen, and a water inlet of the spray pipe is arranged outside the screening machine housing.
[0009] Furthermore, the number of screens in the screening machine housing is 2, and there is a gap between the two screens.
[0010] Furthermore, a node plate is welded at the connection between the inclined square tube and the supporting square tube.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model is provided with a baffle at the feed inlet of the screening machine housing, and the baffle is arranged at intervals, so as to block the bulk material in the feeding process and have a certain buffering effect on the material, so as to prevent the material from being locally concentrated on the screen and damaging the screen. A screen support structure is provided in the screening machine housing, and the screen support structure is composed of two supporting square tubes and an inclined square tube, so that the force is effectively decomposed and transmitted. Compared with the existing seamless steel pipe as a supporting member, the strength and rigidity of the supporting structure are effectively improved, so that the supporting frame is less likely to break. The above two measures can better protect the screen and prevent it from cracking and damage;
[0013] A dust baffle is hingedly provided on the screening machine casing and a spray pipe is provided inside the screening machine casing to reduce dust during the screening process. A baffle bar is also provided on the screen to increase the travel of the material on the screen and slow down the falling speed of the material, so that the material can be fully screened and the screening quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model.
[0015] Figure 2 Schematic diagram of the internal structure of the screening machine casing.
[0016] Figure 3 It is a schematic diagram of the outer structure of the screening machine casing.
[0017] Figure 4 It is a schematic diagram of the longitudinal section of the screening machine casing.
[0018] Figure 5 Schematic diagram of the screen support structure.
[0019] In the figure, 1-base frame, 2-column, 3-screening casing, 31-feeding port, 4-blocking rod, 5-connecting seat, 6-spring, 7-ash blocking plate, 8-screen, 9-material guide trough, 16-baffle, 17-spray pipe, 18-blocking bar, 19-rotating shaft, 20-screen supporting structure, 201-supporting square tube, 202-oblique square tube, 203-node plate, 204-connecting flange. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] Embodiment 1:
[0022] refer to Figure 1-4 As shown, the utility model provides a vibrating screen, including a base frame 1 and a screening material casing 3, wherein the screening material casing 3 is tiltedly arranged on the base frame 1, and a plurality of columns 2 are arranged on both sides of the base frame 1, and springs 6 are arranged on the tops of the columns 2 at both ends of the base frame 1, and a connecting seat 5 is arranged on the side of the screening material casing 3, and the bottom surface of the connecting seat 5 is connected to the top of the spring 6, and a vibration mechanism for driving the screening material casing 3 to vibrate is arranged on the middle column 2, and the vibration mechanism can be an exciter or a vibration motor, etc. The utility model does not limit the specific structure of the vibration mechanism and its connection method, and a screen 8 is detachably arranged in the screening material casing 3. Preferably, the number of screens 8 in the screening material casing 3 is 2, and there is a gap between the two screens 8. A screen support structure 20 for supporting the screen 8 is connected between the two inner walls of the screening housing 3 to prevent the screen 8 from cracking. In order to reduce dust during the screening process, an ash baffle plate 7 is hingedly provided on the top of the screening housing 3. The length of the ash baffle plate 7 is less than the length of the screening housing 3 so that a feed inlet 31 is formed on the upper part of the screening housing 3. A baffle rod 4 and a baffle plate 16 are provided between the two inner walls of the screening housing 3. The baffle rod 4 is arranged at intervals and is located at the feed inlet 31, so as to prevent large pieces of material from hitting the drying net 8. The baffle 16 is located near the last baffle bar 4, so that it can prevent large pieces of material from falling on the screen 8. Baffle bars 18 are also provided on the two inner walls of the screening machine housing 3. The baffle bars 18 are in contact with the screen 8. The baffle bars 18 are inclined and have different inclination directions, so that the travel of the material on the screen 8 can be extended, and the falling speed of the material can be slowed down, so that the screening process can be fully carried out and the screening quality can be improved.
[0023] refer to Figure 5As shown, the screen support structure 20 includes an inclined square tube 202 and a supporting square tube 201. There are two supporting square tubes 201. The inclined square tube 202 is connected between two supporting square tubes 201 in an "eight" shape. Connecting flanges 204 are provided at both ends of the supporting square tube 201. Furthermore, a node plate 203 is welded at the connection between the inclined square tube 202 and the supporting square tube 201. The structure is reasonable and simple. The inclined square tube 202 and the supporting square tube 201 are arranged to form a triangular structure, so that the force is effectively decomposed and transmitted, and the node plate 203 is used for reinforcement, which effectively improves the integrity of the K-type support frame, enhances the strength and rigidity of the screen support structure 20, and reduces the possibility of cracking of the screen support structure 20 and the screen 8, which plays a key role in improving the reliability of the vibrating screen and extending the service life of the vibrating screen.
[0024] Embodiment 2:
[0025] On the basis of the above-mentioned embodiment, another embodiment of the utility model is that a material guide trough 9 is provided at the lower port of the screening machine housing 3, the number of the material guide troughs 9 is equal to the number of the screens 8, and the material guide troughs 9 are connected to the bottom edges of the screens 8, the bottom surface of the material guide trough 9 is an inclined surface, and the side edges of the material guide trough 9 are open mouths so as to facilitate the discharge of the screen material along the inclined surface.
[0026] Embodiment 3:
[0027] On the basis of the above-mentioned embodiment, another embodiment of the utility model is that, in order to prevent dust and scouring during the screening process, a spray pipe 17 is arranged in the screening machine housing 3, spray holes are arranged at intervals on the spray pipe 17 and the spray holes are facing the screen 8, and the water inlet of the spray pipe 17 is arranged on the outside of the screening machine housing 3.
[0028] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components or layout of the subject combination layout. In addition to the modifications and improvements made to the components or layout, other uses will also be apparent to those skilled in the art.
Claims
1. A vibrating screen, comprising a base frame (1) and a screening housing (3), wherein the screening housing (3) is arranged obliquely on the base frame (1), characterized in that: A plurality of columns (2) are arranged on both sides of the base frame (1), springs (6) are arranged on the tops of the columns (2) at both ends of the base frame (1), a connecting seat (5) is arranged on the side of the screening housing (3), the bottom surface of the connecting seat (5) is connected to the top of the spring (6), a vibration mechanism for driving the screening housing (3) to vibrate is arranged on the middle column (2), a screen (8) is detachably arranged in the screening housing (3), a screen support structure (20) for supporting the screen (8) is connected between the two inner walls of the screening housing (3), and the top of the screening housing (3) is provided with a connecting seat (5). A dust baffle (7) is hingedly connected to the screen housing (3), the length of the dust baffle (7) is less than the length of the screen housing (3), so that a feed inlet (31) is formed on the upper part of the screen housing (3), a baffle rod (4) and a baffle plate (16) are arranged between the two inner walls of the screen housing (3), the baffle rods (4) are arranged at intervals and are located at the feed inlet (31), and the baffle plate (16) is located close to the last baffle rod (4), and the two inner walls of the screen housing (3) are also respectively provided with baffle bars (18), the baffle bars (18) are in contact with the screen (8), and the baffle bars (18) are arranged obliquely and the inclination directions are different; The screen support structure (20) comprises an obliquely-stretched square tube (202) and a supporting square tube (201), wherein the number of the supporting square tubes (201) is two, the obliquely-stretched square tube (202) is connected between the two supporting square tubes (201) in an "eight" shape, and connecting flanges (204) are provided at both ends of the supporting square tube (201).
2. A vibrating screen according to claim 1, characterized in that: A material guide groove (9) is arranged at the lower end of the screening machine housing (3), the material guide groove (9) is connected to the bottom edge of the screen (8), and the bottom surface of the material guide groove (9) is an inclined surface.
3. A vibrating screen according to claim 1, characterized in that: A spray pipe (17) is arranged in the screening machine housing (3), spray holes are arranged at intervals on the spray pipe (17) and the spray holes face the screening mesh (8), and a water inlet of the spray pipe (17) is arranged outside the screening machine housing (3).
4. A vibrating screen according to claim 1, characterized in that: The number of screens (8) in the screening machine housing (3) is two, and there is a gap between the two screens (8).
5. A vibrating screen according to claim 1, characterized in that: A node plate (203) is welded at the connection between the inclined square tube (202) and the supporting square tube (201).