Quick disassembly and assembly type double-layer screen for screening machine

Abstract

The utility model discloses a quick disassembly and assembly type double-layer screen for a screening machine, relates to the technical field of screening machines, and aims at solving the problems that an existing double-layer screen is inconvenient to maintain and replace and high in cost. Comprising a screen frame and a screen mesh, the screen frame is installed on a swing frame through a connecting assembly, and the screen mesh corresponds to the screen frame in position; the two sets of screen frames are arranged and comprise the first screen frame and the second screen frame which are connected through a connecting assembly. The first screen mesh and the second screen mesh are mounted on the second screen frame and the swing frame through mounting assemblies correspondingly; the screen frame is provided with a pressing assembly for the screen cloth. Due to the fact that the split type design of the screen meshes is adopted, when the screen meshes are blocked or seriously abraded, limiting of the adjacent screen frames can be relieved, the screen meshes can be taken down to be maintained, cleaned or replaced, operation is easy and convenient, and cost does not need to be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of screening machines, in particular to a quick-detachable double-layer screen for screening machines. Background Art

[0002] The screening machine is a vibrating screening machine that utilizes the relative movement between bulk materials and the screen surface to allow some particles to pass through the screen holes and separate materials such as sand, gravel, and crushed stone into different grades according to particle size.

[0003] During the long-term use of the screening machine, the screen will have problems such as wear and blockage, which will affect the screening quality. Therefore, the screen needs to be maintained, cleaned, or replaced frequently. In the prior art, most devices weld the screen to the screen frame to increase the structural strength of the screen. However, when maintaining and replacing the screen, the screen needs to be cut and re-welded, or the screen and the screen frame need to be completely replaced, which is costly and inconvenient to maintain and replace the screen.

[0004] Therefore, the present application provides a quick-detachable double-layer screen for a screening machine to meet the needs. Utility Model Content

[0005] The purpose of the present application is to provide a quick-detachable double-layer screen for a screening machine, aiming to solve the problems of inconvenient maintenance and replacement of existing double-layer screens and high costs.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a quick-detachable double-layer screen for a screening machine, comprising a screen frame and a screen, wherein the screen frame is mounted on a swing frame through a connecting assembly, and the screen corresponds to the position of the screen frame;

[0007] The screen frame is provided with two groups, including a first screen frame and a second screen frame, wherein the first screen frame is installed above the second screen frame, and the two are connected by the connecting assembly;

[0008] The screen is provided with two groups, including a first screen and a second screen, and the first screen and the second screen are respectively installed on the second screen frame and the swing frame through the installation components;

[0009] The screen frame is provided with a clamping assembly for the screen; the screen frame is provided with a discharge port corresponding to the position of the screen. By adopting a split design between the screens, when the screens are blocked or severely worn, the adjacent screen frames can be released from the limit, and the screens can be removed for maintenance, cleaning or replacement. The operation is simple and convenient, and there is no need to increase the cost.

[0010] Preferably, the installation assembly includes a support frame and a bayonet pin. The support frame adopts a cross-shaped frame body. The bayonet pin is provided on the top surface of the support frame. The screen is provided with a pin hole that is compatible with the bayonet pin. By using the installation assembly and the clamping assembly in coordination, the screen can be quickly installed, positioned, and clamped. While ensuring the installation strength of the screen, the time required for screen replacement and maintenance is shortened, thereby improving maintenance efficiency.

[0011] Preferably, the connecting assembly includes a clamp and a bolt, the longitudinal section of the clamp is V-shaped, and the head and tail ends of the clamp are connected by the bolts for connecting the first screen frame, the second screen frame and the swing frame.

[0012] Preferably, the clamping assembly comprises a guide ring and a clamping rod, the guide ring is an annular plate recessed toward the middle and mounted on the inner wall of the screen frame, and the clamping rod is provided between the facing surfaces of the guide ring and the screen.

[0013] Preferably, the pressing rod is a T-shaped rod including a neck and a head, wherein the head is in contact with the screen, and a diameter of the head is greater than a diameter of the neck.

[0014] Preferably, the facing surfaces of the first screen frame and the second screen frame are provided with downward convex edges, and the second screen frame is provided with a groove matched with the convex edge.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] In the utility model, by adopting a split design between the screens, when the screens are blocked or severely worn, the adjacent screen frames can be released from the limit, and the screens can be removed for maintenance, cleaning or replacement, which is simple and convenient to operate without increasing costs.

[0017] In the utility model, the screen can be quickly installed, positioned and pressed by using the installation component and the pressing component. While ensuring the installation strength of the screen, the time required for screen replacement and maintenance is shortened, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 It is a cross-sectional view of the utility model;

[0022] Figure 4 It is an enlarged view of point A of the present utility model.

[0023] In the figure: 1. first screen frame; 2. second screen frame; 3. swing frame; 4. discharge port; 5. clamp; 6. bolt; 7. guide ring; 8. clamping rod; 9. first screen; 10. support frame; 11. bayonet; 12. second screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Reference Figure 1-4 A quick-detachable double-layer screen for a screening machine shown in the figure comprises a screen frame and a screen, wherein the screen frame is mounted on a swing frame 3 via a connecting assembly, the screen corresponds to the position of the screen frame, and the screen is pressed and limited by a pressing assembly in cooperation with an installation assembly;

[0026] The screen frame is provided with two groups, including a first screen frame 1 and a second screen frame 2, wherein the first screen frame 1 is installed above the second screen frame 2, and the two are connected by the connecting assembly;

[0027] The screen is provided with two groups, including a first screen 9 and a second screen 12, and the first screen 9 and the second screen 12 are respectively installed on the second screen frame 2 and the swing frame 3 through installation components;

[0028] The screen frame is provided with a pressing assembly for the screen; the screen frame is provided with a discharge port 4 corresponding to the position of the screen.

[0029] The installation assembly is used for the installation of the screen and the preliminary positioning of the screen. The installation assembly is provided with two groups, one group is welded on the swing frame 3, and the other group is welded on the second screen frame 2;

[0030] The installation assembly includes a support frame 10 and a bayonet 11. The support frame 10 adopts a cross-shaped frame body. The bayonet 11 is provided on the top surface of the support frame 10. There are four groups of bayonet 11, which are respectively arranged at the four corners of the support frame 10. Pin holes that are compatible with the bayonet 11 are opened on the screen.

[0031] The connecting assembly is used for connecting the screen frame and the swing frame 3;

[0032] The connecting assembly includes a clamp 5 and a bolt 6. The longitudinal section of the clamp 5 is V-shaped, and the head and tail ends of the clamp 5 are connected by the bolt 6, which is used for connecting the first screen frame 1, the second screen frame 2 and the swing frame 3.

[0033] The clamping assembly is used to clamp and limit the screen;

[0034] The clamping assembly includes a guide ring 7 and a clamping rod 8. The guide ring 7 is an annular plate that is concave toward the middle and is installed on the inner wall of the screen frame. The clamping rod 8 is provided between the facing surfaces of the guide ring 7 and the screen. Under the action of the clamping rod 8, the screen is clamped on the mounting assembly. The clamping rod 8 is a T-shaped rod, including a neck and a head. The head contacts the screen. The diameter of the head is larger than the diameter of the neck, which increases the contact area with the screen, thereby increasing the clamping stability of the screen.

[0035] A downward convex edge is provided on the facing surfaces of the first screen frame 1 and the second screen frame 2, and a groove matched with the convex edge is provided on the second screen frame 2. The cooperation between the convex edge and the groove facilitates the installation of the two groups of screen frames by the staff, avoiding misalignment during installation, which affects the compression and limiting of the screen.

[0036] Working principle of the utility model: when maintenance is needed, the staff loosens the bolt 6, releases the limit between the first screen frame 1, the second screen frame 2 and the swing frame 3 by the clamp 5, moves the first screen frame 1 upward, drives the guide ring 7 and the clamping rod 8 to move upward, separates from the first screen 9, and releases the clamping limit of the first screen 9 at the same time, the staff can move the first screen 9 upward, separate the first screen 9 from the support frame 10, and slide the first screen 9 out of the bayonet 11, and completely remove the first screen 9, and can perform maintenance or replacement on it;

[0037] According to the above steps, the second screen 12 is removed for maintenance or replacement. After cleaning, it is installed according to the reverse steps to complete the maintenance of the double-layer screen.

[0038] The electromechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0039] Components not described in detail herein are prior art.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-detachable double-layer screen for a screening machine, characterized in that: It comprises a screen frame and a screen mesh, wherein the screen frame is mounted on a swing frame (3) via a connecting assembly, and the screen mesh corresponds to the position of the screen frame; The sieve frame is provided with two groups, including a first sieve frame (1) and a second sieve frame (2), the first sieve frame (1) is installed above the second sieve frame (2), and the two are connected via the connecting assembly; The screen is provided with two groups, including a first screen (9) and a second screen (12); the first screen (9) and the second screen (12) are respectively mounted on the second screen frame (2) and the swing frame (3) via mounting components; The screen frame is provided with a pressing assembly for the screen; and the screen frame is provided with a discharge port (4) corresponding to the position of the screen.

2. A quick-detachable double-layer screen for a screening machine according to claim 1, characterized in that: The mounting assembly comprises a support frame (10) and a bayonet (11); the support frame (10) adopts a cross-shaped frame body; the bayonet (11) is provided on the top surface of the support frame (10); and a pin hole matching the bayonet (11) is provided on the screen.

3. The quick-detachable double-layer screen for a screening machine according to claim 1, characterized in that: The connecting assembly comprises a clamp (5) and a bolt (6); the longitudinal section of the clamp (5) is V-shaped, and the head and tail ends of the clamp (5) are connected by the bolt (6) for connecting the first screen frame (1), the second screen frame (2) and the swing frame (3).

4. The quick-detachable double-layer screen for a screening machine according to claim 1, characterized in that: The clamping assembly comprises a guide ring (7) and a clamping rod (8); the guide ring (7) is an annular plate which is recessed toward the middle and is mounted on the inner wall of the screen frame; the clamping rod (8) is provided between the facing surfaces of the guide ring (7) and the screen.

5. The quick-detachable double-layer screen for a screening machine according to claim 4, characterized in that: The pressing rod (8) is a T-shaped rod, comprising a neck and a head, the head being in contact with the screen, and the diameter of the head being larger than the diameter of the neck.

6. The quick-detachable double-layer screen for a screening machine according to claim 1, characterized in that: The first screen frame (1) and the second screen frame (2) are provided with downwardly directed convex edges on the facing surfaces thereof, and the second screen frame (2) is provided with a groove matched with the convex edge.

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