Anti-clogging screen structure and breaker thereof

Abstract

The utility model discloses a kind of anti-clogging screen structure and its crusher, screen structure includes rack, the rack is equipped with screen body, screen body includes fixed component and movable component, movable component is connected with the fixed component or apart from each other;It also includes drive assembly and safety component, the output end of drive assembly is transmission connection with movable component;Safety component is compatible with movable component, when movable component is connected with fixed component, safety component is connected with movable component;It also includes current detection unit, when the current of equipment is higher than set value, drive the movable component apart from the fixed component.The screen structure of the utility model includes current detection unit, the current of equipment is detected in real time by current detection unit, when the current of equipment is higher than set value, open the movable component unloading, so that crusher can be discharged and cleaned to realize without stopping.

Description

Technical Field

[0001] This utility model belongs to the field of crushers, specifically relating to a screen structure for preventing clogging and a crusher thereof. Background Technology

[0002] A crusher is a mechanical device that uses mechanical force to break large materials into smaller particles. It is widely used in mining, construction, chemical, food processing, and environmental protection industries. Most existing crushers are equipped with a screen at the discharge port to prevent large, poorly pulverized materials from exiting, thus improving the crushing efficiency. However, when the amount of material to be crushed exceeds the equipment's capacity or when the material contains soft, difficult-to-crush materials, the screen can easily become clogged and difficult to clean.

[0003] In existing technologies, such as patent document CN113477366A, a crusher with an easily detachable screen is disclosed. This includes a screen that can rotate around the axis of a rotating shaft. By placing the screen on the frame when not in operation, operators can easily remove it for cleaning or replacement. However, this method only improves the convenience of cleaning or replacing the screen. When the screen is clogged during operation, the machine still needs to be stopped to clear the blockage. Furthermore, the screen placed on the frame obstructs the discharge port, preventing the blockage from being directly discharged, thus reducing its convenience. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model proposes a screen structure and crusher to prevent clogging. The screen structure includes a current detection unit, which monitors the current of the equipment in real time. When the current of the equipment is higher than a set value, the movable component is opened to discharge material, so that the equipment can discharge and clear the blockage without stopping the machine, thus preventing the screen structure from clogging.

[0005] This utility model is implemented as follows: an anti-clogging screen structure includes a frame, on which a screen body is mounted. The screen body is positioned above the discharge port of the frame and blocks the discharge port. The screen body includes a fixed component and a movable component disposed opposite to the fixed component. The movable component is hinged to the frame, allowing it to rotate to connect or separate from the fixed component. Under normal circumstances, the movable component is connected to the fixed component to filter materials and prevent unsuitable materials from passing through. When the screen body is clogged, the movable component separates from the fixed component to quickly discharge the clogged material, thus improving the convenience of the screen structure.

[0006] It also includes a drive assembly, which is mounted on the frame. The output end of the drive assembly is connected to the movable component to drive the movable component to reciprocate, thereby realizing the automatic opening and closing of the movable component and preventing the screen structure from clogging.

[0007] The movable component is further provided with a safety component at its end. The safety component is installed on the frame and is adapted to the end of the movable component. When the movable component is connected to the fixed component, the safety component is connected to the movable component. Since the movable component needs to bear the weight of the material and has a large load, the safety component is used to prevent the movable component from opening accidentally due to excessive load, thereby improving the reliability of the movable component.

[0008] The system also includes a control component electrically connected to the drive assembly and the safety component. The control component includes a current detection unit electrically connected to the device housing the screen structure. When the current of the device exceeds a set value, the control component sends an electrical signal to the drive assembly and the safety component, thereby driving the movable component to separate from the fixed component. When the screen body is clogged, the load on the device increases, leading to an increase in the device's current. When the current exceeds a set value, the safety component separates from the movable component. Subsequently, the drive assembly drives the movable component to rotate, opening the screen body and allowing the blocked material to be quickly discharged, further preventing clogging of the screen structure.

[0009] Preferably, the drive assembly includes a drive unit hinged to the frame. The drive unit includes a reciprocating telescopic rod, which is kinetically connected to the movable component to drive the movable component to reciprocate. When the drive unit drives the movable component to reciprocate, the position of the connection point between the drive unit and the movable component changes. When the drive unit is hinged to the frame, it allows the drive unit to adapt to the change in the connection point, preventing additional force from being applied to the telescopic rod due to the change in the connection point, thus avoiding deformation of the telescopic rod and improving the reliability of the drive assembly.

[0010] Specifically, the movable component includes a connecting portion corresponding to the drive unit, the connecting portion rotating synchronously with the movable component; the connecting portion is provided with a rocker arm extending axially along the connecting portion, the rocker arm being kinetically connected to the telescopic rod, and the extension length of the rocker arm being greater than the radial dimension of the connecting portion. The rocker arm increases the lever arm for driving the movable component to reciprocate, thereby reducing the driving force required by the drive unit, reducing the specifications and energy consumption of the drive unit, and reducing the production and operating costs of the drive assembly.

[0011] Specifically, at least two drive assemblies are provided, symmetrically arranged on both sides of the frame. The symmetrical arrangement of the drive assemblies on both sides of the frame ensures more even force distribution when the moving component rotates, thereby reducing the risk of jamming during rotation and improving the reliability of the moving component.

[0012] Preferably, the fixing component includes a first bracket and a first screen. The first screen is mounted on the first bracket. The first bracket includes multiple first pallets arranged in parallel and a first connecting rod perpendicular to the first pallets. The first connecting rod is connected to the first pallets. A material passage is formed between the first pallets and the first connecting rod, allowing the material screened by the first screen to pass through. This ensures both the mechanical performance of the fixing component and the material throughput efficiency.

[0013] Specifically, the movable component includes a second bracket and a second screen. The second screen is mounted on the second bracket, which includes multiple parallel second support plates and second connecting rods. The second connecting rods are perpendicular to the second support plates and connected to the second connecting rods. A material passage is formed between the second support plates and the second connecting rods, allowing the material screened by the second screen to pass through. This ensures both the mechanical performance of the movable component and the material throughput efficiency.

[0014] Specifically, the second support plates located on both sides of the second bracket extend towards the first bracket and overlap with the first support plate to form an abutment portion; when the movable member is connected to the fixed member, the abutment portion abuts against the safety member. By extending the second support plates on both sides of the second bracket towards the first bracket, the lever arm preventing accidental rotation of the movable member is increased, thereby reducing the pressure exerted by the abutment portion on the safety member, reducing the load on the safety member, and thus improving the service life of the safety member.

[0015] Specifically, the safety component includes a retractable blocking portion. When the movable component is connected to the fixed component, the blocking portion extends below the abutting portion and abuts against it. By extending and retracting, the required operating space of the safety component is reduced, thereby reducing the installation space required for the screen structure and improving the ease of installation of the screen structure.

[0016] Preferably, the frame is further provided with a plurality of fixing components adapted to the fixing member. Each fixing component includes a screw screwed onto the frame. The screw screw extends into or retracts from the frame by rotation. The end of the screw screw is tapered and connected to the fixing member. By allowing the screw screw to extend into or retract from the frame, it can adapt to fixing members of different specifications, improving the versatility of the fixing components.

[0017] A crusher includes the screen structure described above. When the crusher is clogged, the movable component can open in time to quickly discharge the blocked material, thereby improving the crushing efficiency of the crusher.

[0018] The beneficial effects of this utility model are:

[0019] This utility model proposes a screen structure and crusher to prevent clogging. The screen structure includes a movable component, a drive component, a safety component, and a current detection unit. The current detection unit detects the current of the equipment in real time. When the current of the equipment is higher than a set value, the safety component separates from the movable component. Then, the drive component drives the movable component to rotate, opening the screen body and allowing the blocked material to be discharged quickly, thus preventing the screen structure from clogging. Attached Figure Description

[0020] Figure 1 This is an overall cross-sectional view of the screen structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the screen of this utility model;

[0022] Figure 3 This is a schematic diagram of the main body of the screen structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the first bracket of the screen structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the second bracket of the screen structure of this utility model;

[0025] Figure 6 This is an overall schematic diagram of the crusher of this utility model.

[0026] Figure label:

[0027] 1. Frame; 2. Screen body; 3. Drive assembly; 4. Safety component; 5. Fixing assembly; 21. Fixing component; 22. Movable component; 31. Drive unit; 41. Blocking part; 51. Screw; 211. First bracket; 212. First screen; 221. Connecting part; 222. Rocker arm; 223. Second bracket; 224. Second screen; 311. Telescopic rod; 2111. First support plate; 2112. First connecting rod; 2231. Second support plate; 2232. Second connecting rod; 2233. Abutment part. Detailed Implementation

[0028] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0029] Example 1

[0030] like Figures 1-5 As shown, an anti-clogging screen structure includes a frame 1, on which a screen body 2 is mounted. The screen body 2 is positioned above the discharge port of the frame 1 and blocks the discharge port. The screen body 2 includes a fixed component 21 and a movable component 22 disposed opposite to the fixed component 21. The movable component 22 is hinged to the frame 1, allowing it to rotate to connect or separate from the fixed component 21. Under normal conditions, the movable component 22 is connected to the fixed component 21 to filter materials and prevent unqualified materials from passing through. When the screen body 2 is clogged, the movable component 22 separates from the fixed component 21 to quickly discharge the clogged material and prevent the screen structure from clogging.

[0031] In this embodiment, the frame 1 is further provided with a plurality of fixing components 5 adapted to the fixing member 21. Each fixing component 5 includes a screw 51 screwed onto the frame 1. The screw 51 extends into or retracts from the frame 1 by rotation. The end of the screw 51 is tapered and connected to the fixing member 21. By extending into or retracting the screw 51 from the frame 1, the screw 51 can adapt to fixing members 21 of different specifications, improving the versatility of the fixing component 5.

[0032] It also includes a drive component 3, which is mounted on the frame 1. The output end of the drive component 3 is connected to the movable component 22 for transmission, so as to drive the movable component 22 to reciprocate, thereby realizing the automatic opening and closing of the movable component 22 and improving the convenience of the movable component 22.

[0033] In this embodiment, the drive assembly 3 includes a drive unit 31 hinged to the frame 1. The drive unit 31 includes a reciprocating telescopic rod 311, which is connected to the movable member 22 to drive the movable member 22 to reciprocate. When the drive unit 31 drives the movable member 22 to reciprocate, the position of the connection point between the drive unit 31 and the movable member 22 changes. When the drive unit 31 is hinged to the frame 1, it can adapt to the change in the connection point, preventing additional force from being applied to the telescopic rod 311 when the connection point changes, thus preventing deformation of the telescopic rod 311 and improving the reliability of the drive assembly 3.

[0034] In this embodiment, the drive unit 31 is a hydraulic cylinder.

[0035] Specifically, the movable component 22 includes a connecting portion 221 corresponding to the drive unit 31, the connecting portion 221 rotating synchronously with the movable component 22; the connecting portion 221 is provided with a rocker arm 222 extending axially along the connecting portion 221, the rocker arm 222 being tractively connected to the telescopic rod 311, and the extension length of the rocker arm 222 being greater than the radial dimension of the connecting portion 221. The rocker arm 222 increases the lever arm for driving the movable component 22 to reciprocate, thereby reducing the driving force required by the drive unit 31, reducing the specifications and energy consumption of the drive unit 31, and reducing the production and operating costs of the drive assembly 3.

[0036] Specifically, at least two drive components 3 are provided, symmetrically arranged on both sides of the frame 1. The drive components 3 symmetrically arranged on both sides of the frame 1 make the force on the movable component 22 more even when it rotates, thereby reducing the risk of jamming when the movable component 22 rotates and improving the reliability of the movable component 22.

[0037] The movable component 22 is further provided with a safety component 4 at its end. The safety component 4 is installed on the frame 1 and is adapted to the end of the movable component 22. When the movable component 22 is connected to the fixed component 21, the safety component 4 is connected to the movable component 22. Since the movable component 22 needs to bear the weight of the material and has a large load, the safety component 4 is used to prevent the movable component 22 from opening accidentally due to excessive load, thereby improving the reliability of the movable component 22.

[0038] In this embodiment, the safety component 4 is a hydraulic cylinder.

[0039] In this embodiment, the fixing component 21 includes a first bracket 211 and a first screen 212. The first screen 212 is mounted on the first bracket 211. The first bracket 211 includes a plurality of first pallets 2111 arranged in parallel and a first connecting rod 2112 arranged perpendicularly to the first pallets 2111. The first connecting rod 2112 is connected to the first pallets 2111. A material passage is formed between the first pallets 2111 and the first connecting rod 2112 for the material screened by the first screen 212 to pass through. This ensures both the mechanical performance of the fixing component 21 and the material throughput efficiency.

[0040] Specifically, the movable component 22 includes a second bracket 223 and a second screen 224. The second screen 224 is mounted on the second bracket 223. The second bracket 223 includes multiple parallel-arranged second support plates 2231 and second connecting rods 2232. The second connecting rods 2232 are perpendicular to the second support plates 2231 and connected to them. A material passage is formed between the second support plates 2231 and the second connecting rods 2232, allowing the material screened by the second screen 224 to pass through. This ensures both the mechanical performance of the movable component 22 and the material throughput efficiency.

[0041] Specifically, the second support plates 2231 located on both sides of the second bracket 223 extend towards the first bracket 211 and overlap with the first support plate 2111 to form an abutment portion 2233; when the movable member 22 is connected to the fixed member 21, the abutment portion 2233 abuts against the safety member 4. By extending the second support plates 2231 on both sides of the second bracket 223 towards the first bracket 211, the lever arm preventing accidental rotation of the movable member 22 is increased, thereby reducing the pressure exerted by the abutment portion 2233 on the safety member 4, reducing the load on the safety member 4, and thus improving the service life of the safety member 4.

[0042] Specifically, the safety component 4 includes a retractable blocking part 41. When the movable component 22 is connected to the fixed component 21, the blocking part 41 extends below the abutting part 2233 and abuts against the abutting part 2233. By extending and retracting, the required movement space of the safety component 4 is reduced, thereby reducing the installation space required for the screen structure and improving the ease of installation of the screen structure.

[0043] It also includes a control component electrically connected to the drive assembly 3 and the safety component 4. The control component includes a current detection unit electrically connected to the device on which the screen structure is installed. When the current of the device exceeds a set value, the control component sends an electrical signal to the drive assembly 3 and the safety component 4, thereby driving the movable component 22 to separate from the fixed component 21. When the screen body 2 is clogged, the load on the device increases, leading to an increase in the device's current. When the current exceeds a set value, the safety component 4 separates from the movable component 22. Subsequently, the drive assembly 3 drives the movable component 22 to rotate, opening the screen body 2 and allowing the blocked material to be quickly discharged, further preventing clogging of the screen structure.

[0044] In this embodiment, the current detection unit is a current transmitter.

[0045] Example 2

[0046] like Figure 6 As shown, a crusher includes the screen structure described in Embodiment 1. When the crusher is blocked, the movable component 22 can open in time to quickly discharge the blocked material, thereby improving the crushing efficiency of the crusher.

[0047] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A clog-resistant screen structure, comprising a frame, wherein a screen body is mounted on the frame, the screen body being positioned above the discharge port of the frame and obstructing the discharge port, characterized in that, The screen body includes a fixed component and a movable component disposed opposite to the fixed component. The movable component is hinged to the frame, and the movable component can be rotated to connect or separate from the fixed component. It also includes a drive assembly, which is mounted on the frame and whose output end is connected to the movable component to drive the movable component to reciprocate. The movable component is further provided with a safety component at its end. The safety component is installed on the frame and is adapted to the end of the movable component. When the movable component is connected to the fixed component, the safety component is connected to the movable component. It also includes a control component electrically connected to the drive component and the safety component. The control component includes a current detection unit electrically connected to the device on which the screen structure is installed. When the current of the device is higher than a set value, the control component sends an electrical signal to the drive component and the safety component, thereby driving the movable component to separate from the fixed component.

2. The anti-clogging screen structure according to claim 1, characterized in that, The drive assembly includes a drive unit hinged to the frame, the drive unit including a reciprocating telescopic rod, the telescopic rod being throttle-connected to the movable component to drive the movable component to reciprocate.

3. The anti-clogging screen structure according to claim 2, characterized in that, The movable component includes a connecting part corresponding to the driving unit, the connecting part rotating synchronously with the movable component; the connecting part is provided with a rocker arm extending axially along the connecting part, the rocker arm being drivenly connected to the telescopic rod, and the extension length of the rocker arm being greater than the radial dimension of the connecting part.

4. The anti-clogging screen structure according to claim 3, characterized in that, At least two drive components are provided and are symmetrically arranged on both sides of the frame.

5. The anti-clogging screen structure according to claim 1, characterized in that, The fixing component includes a first bracket and a first screen. The first screen is installed on the first bracket. The first bracket includes a plurality of first plates arranged in parallel and a first connecting rod arranged perpendicular to the first plates. The first connecting rod is also connected to the first plates.

6. The anti-clogging screen structure according to claim 5, characterized in that, The movable component includes a second bracket and a second screen. The second screen is mounted on the second bracket. The second bracket includes a plurality of second support plates and a second connecting rod arranged in parallel. The second connecting rod is perpendicular to the second support plate and is connected to the second connecting rod.

7. The anti-clogging screen structure according to claim 6, characterized in that, The second support plate located on both sides of the second bracket extends toward the first bracket and overlaps with the first support plate to form an abutment portion; when the movable component is connected to the fixed component, the abutment portion abuts against the safety component.

8. The anti-clogging screen structure according to claim 7, characterized in that, The safety component includes a retractable blocking portion. When the movable component is connected to the fixed component, the blocking portion extends below the abutting portion and abuts against the abutting portion.

9. The anti-clogging screen structure according to claim 1, characterized in that, The frame is also provided with a plurality of fixing components adapted to the fixing member. The fixing component includes a screw screwed to the frame. The screw screw extends into or out of the frame by rotation. The end of the screw screw is tapered and connected to the fixing member.

10. A crusher, characterized in that, Includes the screen structure as described in any one of claims 1-9.

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