Vibrating hammer structure for drum screen
By designing a closed track and a vibrating hammer structure in the trommel screen, real-time screen clogging is achieved, which solves the problem of screen clogging in the trommel screen and improves production continuity and equipment service life.
Patent Information
- Application Number
- CN202420925710.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Existing drum screens are prone to clogging of screens when screening sulfur-based fertilizers, resulting in poor screening effect, increasing the workload of operators, affecting continuous production, and shortening the service life of motors and screens.
Design a vibrating hammer structure for a drum screen. By setting up a closed track and a vibrating hammer body during the rotation of the screen, the gravity of the vibrating hammer body is used to achieve reciprocating motion and impact the screen bracket to achieve real-time blockage clearance and pass The closed track avoids material contamination and vibration hammer blockage.
It effectively solves the problem of screen clogging, reduces the workload of on-site operators, ensures continuous production and screening quality, and extends the service life of the motor and screen.
Smart Images
Figure CN222385234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drum screens, in particular to a vibrating hammer structure for drum screens. Background Art
[0002] The drum screen is mainly used for screening materials, which includes a drum screen body composed of a screen body and a frame. The screen body is installed on the frame at an angle. The motor is connected to the screen body through a reducer and a coupling, and drives the screen body to rotate around its rotating axis. When the material enters the screen body, the screen body is in an inclined and rotating state, so that the material in the screen is turned over and rolled, thereby screening the material. Taking the screening process of sulfur-based fertilizer as an example, the screen is often blocked, the material screening effect is poor, the product quality is reduced, and a bottleneck is brought to continuous and stable production. For the screening of sulfur-based fertilizer, the screen needs to be cleaned at least once a day, and each cleaning time is about 1 hour, which not only increases the workload of the operator, but also causes the frequent start and stop of the drum screen, which brings safety hazards and affects the service life of the motor. Furthermore, when the screen is seriously blocked, the on-site personnel need to use a 1.5P hand hammer (hammer) to knock the screen to make the blocked screen transparent to achieve the purpose of cleaning. This operation seriously affects the service life of the screen. Utility Model Content
[0003] The purpose of the utility model is to provide a vibrating hammer structure for a drum screen, so as to solve the defects in the prior art proposed in the above background technology that the screen is prone to clogging, which increases the workload of on-site operators, affects continuous and stable production, and shortens the service life of equipment such as motors and screens.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A vibrating hammer structure for a drum screen comprises a drum screen body, a rotating shaft is provided in the inner middle part of the drum screen body, a guard plate is sleeved on the outside of the rotating shaft, the outer side of the guard plate is connected to the inner side of a screen bracket through a support rod, a screen is provided on the outer side of the screen bracket, and a reciprocating vibrating member driven by the rotation of the screen is provided on the screen bracket; the reciprocating vibrating member comprises a closed track connected to the screen bracket, and a vibrating hammer body that uses gravity to achieve reciprocating motion is provided inside the closed track.
[0006] The beneficial effects of the utility model are as follows: by arranging a closed track and a vibrating hammer, the vibrating hammer can impact the screen support (and generate vibration) during the rotation of the screen, so as to achieve the purpose of clearing the screen in real time, and at the same time avoid the vibrating hammer from directly impacting the screen, thereby achieving the characteristic of protecting the screen; at the same time, the utility model uses a closed track to avoid materials from entering its interior, thereby causing the problem of material contamination, and can also avoid clogging the channel of the vibrating hammer; it has the characteristics of simple structure, solving the problem of screen clogging, avoiding increasing the workload of on-site operators, ensuring continuous production and screening quality, and extending the service life of equipment such as motors and screens.
[0007] Preferably, the closed track is a steel pipe with both ends closed.
[0008] Preferably, one end of the closed track is fixedly connected to the screen support, and the other end thereof is provided with an elbow, and the end of the elbow is provided with a plug.
[0009] Preferably, one end of the closed track is fixedly connected to the screen bracket, and the other end of the closed track extends toward one side of the guard plate, and a plug is provided at the end thereof.
[0010] Preferably, one end of the closed track is fixedly connected to the screen support, and the other end of the closed track is fixedly connected to the guard plate.
[0011] Preferably, the vibrating hammer is a steel ball arranged inside the closed track.
[0012] Preferably, a reciprocating vibration layer composed of a plurality of reciprocating vibration members is evenly distributed on the same horizontal plane of the screen support, and a plurality of reciprocating vibration layers are arranged inside the screen support.
[0013] Preferably, reinforcing ribs are provided between the outer side of the closed track and the support rod.
[0014] Preferably, the inner diameter of the steel pipe is 76 mm, and the ball diameter of the steel ball is 60 mm.
[0015] Preferably, the length of the closed track is not less than 800 mm.
[0016] A vibrating hammer structure for a drum screen made according to the above technical solution can vibrate the screen support during the screen rotating to screen the material by arranging a reciprocating vibrating member, so as to clear the screen and protect the screen at the same time; the utility model uses a closed track to prevent the material from entering the interior thereof, thereby causing the problem of material contamination, and can also avoid clogging the channel of the vibrating hammer; the utility model can be applied to different types of drum screens, and when the distance between the screen support and the guard plate is short, a structure with an elbow can be adopted to increase the impact of the vibrating hammer on the screen support; when the distance between the screen support and the guard plate is long, a straight steel track can be adopted. The structural form of the pipe, in order to save the cost of purchasing steel pipes, the other end of the straight steel pipe can be not connected to the guard plate; when the distance between the screen bracket and the guard plate is appropriate, the two ends of the straight steel pipe can be connected to the screen bracket and the guard plate respectively, which can not only achieve the purpose of real-time blockage clearing, but also improve the strength between the screen bracket and the guard plate; further, the utility model can also provide reinforcing ribs between the outer side of the closed track and the support rod to achieve the characteristic of improving the strength between the screen bracket and the guard plate; it has the characteristics of simple structure, solving the problem of screen blockage, avoiding increasing the workload of on-site operators, ensuring continuous production and screening quality, and extending the service life of equipment such as motors and screens. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the positional relationship between the drum screen body and the reciprocating vibrating member of the utility model;
[0019] Figure 3 This is another schematic diagram of the positional relationship between the drum screen body and the reciprocating vibrating member of the utility model.
[0020] In the figure: 1. drum screen body; 2. rotating shaft; 3. guard plate; 4. support rod; 5. screen bracket; 6. screen; 7. closed track; 8. vibrating hammer; 9. elbow; 10. plug; 11. reinforcing ribs. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] See also Figure 1-3The utility model is a vibrating hammer structure for a drum screen, comprising a drum screen body 1, a rotating shaft 2 is provided in the inner middle part of the drum screen body 1, a guard plate 3 is sleeved on the outside of the rotating shaft 2, the outer side of the guard plate 3 is connected to the inner side of a screen bracket 5 through a support rod 4, a screen 6 is provided on the outer side of the screen bracket 5, and a reciprocating vibrating member driven by the rotation of the screen 6 is provided on the screen bracket 5; the reciprocating vibrating member comprises a closed track 7 connected to the screen bracket 5, and a vibrating hammer body 8 that uses gravity to achieve reciprocating motion is provided inside the closed track 7. The utility model overcomes the traditional method of first screening the material and then clearing the blockage of the screen. Instead, it uses the rotating state of the screen 6 and the gravity of the vibrating hammer 8 to drive the vibrating hammer 8 inside the closed track 7 to do up and down reciprocating motion. During the reciprocating motion, the vibrating hammer 8 impacts the screen support 5 to achieve vibration of the screen 6, thereby achieving the purpose of clearing the blockage of the screen 6 in real time. The above-mentioned vibrating hammer 8 does not directly impact the screen 6, so it can avoid the problem of affecting the service life of the screen 6. In addition, the utility model adopts the closed track 7 to avoid the contamination of the screened materials and the blockage of the vibrating hammer channel. The closed track 7 in the utility model can be a structural form in which a slide is set in a closed space, and the vibrating hammer 8 with a slider is clamped in the slide, or it can be a steel pipe with both ends blocked.
[0023] Furthermore, the closed track 7 is a steel pipe with both ends closed. The above arrangement can effectively reduce the manufacturing cost.
[0024] Furthermore, one end of the closed track 7 is fixedly connected to the screen support 5, and the other end thereof is provided with an elbow 9, and the end of the elbow 9 is provided with a plug 10. The utility model sets reciprocating vibrators of different structural forms according to different specifications of the drum screen body 1. When the distance between the rotating shaft 2 and the screen support 5 is too short, the above-mentioned structural form can be adopted. When the screen 6 rotates, when the vibrating hammer 8 enters the elbow 9 by gravity, the elbow 9 can temporarily store the vibrating hammer 8; when the vibrating hammer 8 descends by gravity, it can descend quickly to achieve the purpose of increasing the impact force.
[0025] Further, one end of the closed track 7 is fixedly connected to the screen support 5, and the other end of the closed track 7 extends to one side of the guard plate 3, and its end is provided with a plug 10. When the distance between the rotating shaft 2 and the screen support 5 is too long, this structural form can be adopted.
[0026] Further, one end of the closed track 7 is fixedly connected to the screen support 5, and the other end of the closed track 7 is fixedly connected to the guard plate 3. When the distance between the rotating shaft 2 and the screen support 5 is appropriate, this structural form can be adopted.
[0027] Furthermore, the vibrating hammer 8 is a steel ball arranged inside the closed track 7 .
[0028] Furthermore, a reciprocating vibration layer composed of a plurality of reciprocating vibration members is evenly distributed on the same horizontal plane of the screen support 5 , and a plurality of reciprocating vibration layers are arranged inside the screen support 5 .
[0029] Furthermore, reinforcing ribs 11 are provided between the outer side of the closed track 7 and the support rod 4. The structural strength of the entire drum screen body 1 can be improved by the above-mentioned structural form.
[0030] Furthermore, the inner diameter of the steel pipe is 76 mm, and the ball diameter of the steel ball is 60 mm.
[0031] Further, the length of the closed track 7 is not less than 800 mm. When the distance between the rotating shaft 2 and the screen support 5 is too short, it means that the length is less than 800 mm, and when the distance between the rotating shaft 2 and the screen support 5 is too long, it means that the length is greater than 800 mm; when the distance between the rotating shaft 2 and the screen support 5 is appropriate, it means that the length is equal to or slightly greater than 800 mm (can be 800-850 mm).
[0032] The working principle of the utility model is as follows: the drum screen body 1 is installed on the frame at an angle, and the motor drives the rotating shaft 2 to rotate through the reducer. During the rotation of the rotating shaft 2, the drum screen body 1 is driven to rotate, and the material enters the screen 6 to flip and roll, thereby realizing screening of the material; in the above process, when the drum screen body 1 rotates to make the closed track 7 in a high position, the vibrating hammer 8 is on the side close to the rotating shaft 2, and as the drum screen body 1 drives the closed track 7 to run to a low position, the vibrating hammer 8 moves toward the screen support 5, and the screen support 5 is impacted by the gravity of the vibrating hammer 8, thereby vibrating and clearing the screen 6. The screen support 5 of the utility model is provided with a plurality of reciprocating vibration layers, each of which contains a plurality of reciprocating vibration members, and the vibrating hammers 8 in the reciprocating vibration members jointly impact the screen support 5, thereby vibrating and clearing the same axial direction of the screen 6; it has the characteristics of simple structure, solving the problem of screen blockage, avoiding increasing the workload of on-site operators, ensuring continuous production and screening quality, and extending the service life of equipment such as motors and screens.
[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A vibrating hammer structure for a drum screen, comprising a drum screen body (1), a rotating shaft (2) being arranged in the middle of the drum screen body (1), a guard plate (3) being arranged outside the rotating shaft (2), the outer side of the guard plate (3) being connected to the inner side of a screen support (5) through a support rod (4), and a screen (6) being arranged outside the screen support (5), characterized in that: The screen support (5) is provided with a reciprocating vibrating member which uses the rotation of the screen (6) as a driving force; The reciprocating vibrating member comprises a closed track (7) connected to the screen support (5), and a vibrating hammer (8) is arranged inside the closed track (7) for realizing reciprocating motion by utilizing gravity.
2. A vibrating hammer structure for a drum screen according to claim 1, characterized in that: The closed track (7) is a steel pipe with both ends closed.
3. A vibrating hammer structure for a drum screen according to claim 2, characterized in that: One end of the closed track (7) is fixedly connected to the screen support (5), and the other end is provided with an elbow (9), and the end of the elbow (9) is provided with a plug (10).
4. A vibrating hammer structure for a drum screen according to claim 2, characterized in that: One end of the closed track (7) is fixedly connected to the screen support (5), and the other end of the closed track (7) extends toward one side of the guard plate (3). A plug (10) is provided at the end thereof.
5. The vibrating hammer structure for a drum screen according to claim 2, characterized in that: One end of the closed track (7) is fixedly connected to the screen support (5), and the other end of the closed track (7) is fixedly connected to the guard plate (3).
6. A vibrating hammer structure for a drum screen according to any one of claims 1 to 5, characterized in that: The vibrating hammer (8) is a steel ball arranged inside the closed track (7).
7. A vibrating hammer structure for a drum screen according to claim 6, characterized in that: A reciprocating vibration layer composed of a plurality of reciprocating vibration members is evenly distributed on the same horizontal plane of the screen support (5), and a plurality of reciprocating vibration layers are arranged inside the screen support (5).
8. A vibrating hammer structure for a drum screen according to claim 4 or 5, characterized in that: A reinforcing rib (11) is provided between the outer side of the closed track (7) and the support rod (4).
9. A vibrating hammer structure for a drum screen according to claim 6, characterized in that: The inner diameter of the closed track (7) is 76 mm, and the diameter of the steel ball is 60 mm.
10. A vibrating hammer structure for a drum screen according to claim 8, characterized in that: The length of the closed track (7) is not less than 800 mm.