A lifting prevention mechanism for a grizzly breaker
By combining V-shaped plates, shovels, movable plates, and scrapers, the problem of track lifting caused by material accumulation in the grate crusher is solved, achieving all-round cleaning and crushing, ensuring stable and safe equipment operation, and reducing maintenance costs.
Patent Information
- Application Number
- CN202522028111.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-22
AI Technical Summary
The lifting of the rails caused by material accumulation during the operation of the grate crusher poses a safety hazard, and the equipment is unstable in operation.
The design employs a combination of V-shaped plates, shovels, movable plates, and scrapers to achieve comprehensive cleaning and crushing of materials on the upper surface, sides, and waist of the track. The structural strength is enhanced by the detachable connection between the mounting block and the V-shaped plate. The material is guided by the extension plate, and the position of the movable plate is adjusted by the matrix positioning screw holes.
It effectively prevents equipment from lifting off the rails, ensuring stable operation and safety, reducing maintenance costs, and improving the adaptability and service life of the device.
Smart Images
Figure CN224672831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bulk material conveying technology in thermal power plants, steel plants, chemical plants, etc., and in particular to an anti-lifting mechanism for a grate crusher. Background Technology
[0002] The grate crusher is a large mobile crushing equipment that moves forward along the track on the crushing grate while crushing the material on the grate into small pieces. Currently, it is mainly used for breaking and removing residues on fixed screen grates. It has gradually become an indispensable piece of equipment in the coal conveying systems of major power plants, steel plants, coking plants and other industries in China. It can not only crush and remove large pieces of hard and brittle materials such as coal and mineral powder, but also tear and cut flexible materials such as straw ropes, branches and textile bags.
[0003] During the operation of the grate crusher, a large amount of material will accumulate on the upper part and sides of the track. As the grate crusher moves along the track, it will be lifted and shaken due to the reaction force or impact of the material, which poses a great safety hazard. Therefore, there is an urgent need for an anti-lifting mechanism to ensure the smooth operation of the equipment and prevent the lifting of the rails due to material accumulation. Utility Model Content
[0004] To overcome the shortcomings of the prior art, this utility model discloses an anti-lifting mechanism for a grate crusher. This utility model not only achieves all-round and efficient cleaning and crushing of materials on the upper surface, sides and waist of the track, effectively preventing the equipment from lifting off the track, but also realizes lateral limiting during the movement of the equipment, ensuring operational safety and stable operation, and reducing maintenance costs.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A lifting prevention mechanism for a grate crusher, comprising: The mounting plate is located on the front side of the grate crusher frame and is installed vertically and vertically in correspondence with the track. V-shaped plates are installed on the surface of the mounting plate. Their raised surfaces are perpendicular to the upper surface of the rail head, and their lower edges abut against the upper surface of the rail head. They are used to clean and push away the material on the upper surface of the rail head. The shovel bar is located on the underside of the raised surface of the V-shaped plate, with its end abutting against the upper surface of the rail head, and is used to pre-crush the material on the upper surface of the rail head. Two movable plates are respectively located on the lower part of the side plates on both sides of the V-shaped plate and are coplanar with the corresponding side plates. The adjacent sides of the two movable plates abut against the two sides of the rail head, which is used to clean and push away the material on both sides of the rail head.
[0006] Furthermore, the mounting plate has a mounting block on its surface, and the front of the mounting block has a protrusion that matches the concave surface of the V-shaped plate. The V-shaped plate can be detachably mounted on the protrusion.
[0007] Furthermore, the protrusion has several slots from top to bottom, and the upper end face of the protrusion has mounting screw holes that pass through the slots. The concave surface of the V-shaped plate has several insert plates that correspond to the slots and are inserted into them. The insert plates have threaded through holes that correspond to the mounting screw holes. The corresponding mounting screw holes and threaded through holes have connecting screws inside them.
[0008] Furthermore, the outer edges of the side plates on both sides of the V-shaped plate are provided with extension plates that extend outward along the inclined surface of the side plates, and the front sides of the mounting block are provided with slots that correspond to and fit the extension plates.
[0009] Furthermore, the V-shaped plate, together with the two movable plates, forms a limiting opening that matches the track cross-section, used for lateral limiting of the grate crusher.
[0010] Furthermore, the lower side of both sides of the V-shaped plate is provided with several positioning screw holes arranged in a matrix, and the upper side of the movable plate is provided with fixing screw holes that are compatible with the positioning screw holes. Bolts are provided in the corresponding fixing screw holes and positioning screw holes.
[0011] Furthermore, scrapers are provided on the side of the two movable plates adjacent to the rail head, and the scrapers extend to the rail web position to clean the material at the rail web.
[0012] Furthermore, reinforcing ribs are provided between the two sides of the shovel bar and the V-shaped plate.
[0013] Furthermore, several mounting holes are provided on both sides of the mounting plate from top to bottom.
[0014] Through the combined design of V-shaped plates, shovels, movable plates and scrapers, multi-level and all-round cleaning and pre-crushing of materials on the upper surface of the rail head, both sides of the rail head and the recessed area of the rail waist are achieved, effectively eliminating the risk of rail lifting caused by material accumulation and ensuring the stable operation of the grate crusher. The detachable connection structure, which connects the mounting block to the V-shaped plate and is secured with connecting screws, not only significantly enhances the structural strength and impact resistance of the core working components, reduces deformation and wear, and extends the service life of the overall device, but also facilitates daily maintenance and replacement. The extension plates on both sides of the V-shaped plate cooperate with the slots on the mounting block, which not only strengthens the structure, but also guides the cleaned material away from the equipment's traveling mechanism, avoiding secondary contact and further ensuring the continuity and stability of the equipment's operation. The installation position of the movable plate can be flexibly adjusted by the matrix-distributed positioning screw holes and bolts, so that it can quickly adapt to tracks of different widths, improving the device's adaptability and versatility to different working conditions. This invention not only achieves efficient cleaning and crushing of materials on the upper surface, sides, and waist of the track, effectively preventing the equipment from lifting off the track, but also achieves lateral limiting during equipment movement, ensuring operational safety and stable operation, and reducing maintenance costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the mounting plate structure of this utility model; Figure 3 This is a schematic diagram of the V-shaped plate structure of this utility model; Figure 4 This is a schematic diagram of the movable plate structure of this utility model.
[0016] In the diagram: 1. Mounting plate; 1.1. Mounting block; 1.1.1. Protrusion; 1.1.2. Slot; 1.1.3. Bayonet; 1.1.4. Mounting screw hole; 1.1.5. Connecting screw; 1.2. Mounting slot. 2. V-shaped plate; 2.1. Insert plate; 2.1.1. Threaded through hole; 2.2. Extension plate; 2.3. Positioning screw hole; 3. Shovel handle; 3.1. Reinforcing ribs; 4. Limiting port; 5. Movable plate; 5.1. Fixing screw holes; 5.2. Bolts; 5.3. Scraper. Detailed Implementation
[0017] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.
[0018] Please refer to the instruction manual appendix. Figure 1-4 This utility model provides a technical solution: Example 1: A lifting prevention mechanism for a grate crusher includes an installation plate 1 located on the front side of the grate crusher frame and corresponding to the upper and lower sides of the track. The installation plate 1 has several mounting holes 1.2 on both sides from top to bottom. The mounting holes 1.2 not only allow the installation plate 1 to be fixed on the front side of the grate crusher frame, but also allow the installation plate 1 to be raised and lowered as needed. The surface of the installation plate 1 is provided with a V-shaped plate 2. The protruding surface of the V-shaped plate 2 is perpendicular to the upper surface of the track head, and the lower edge abuts against the upper surface of the track head. As the grate crusher moves along the track, the V-shaped plate 2 cleans the material on the upper surface of the track head. A shovel 3 is provided on the lower side of the convex surface of the V-shaped plate 2. The end of the shovel 3 abuts against the upper surface of the rail head. The shovel 3 can be used to pre-crush the material on the upper surface of the rail head, improve the cleaning efficiency of the V-shaped plate 2 for clumps of material, and reduce the resistance during the movement of the grate crusher. In order to ensure the structural strength of the shovel 3, reinforcing ribs 3.1 are provided between the two sides of the shovel 3 and the V-shaped plate 2. Both sides of the V-shaped plate 2 are equipped with movable plates 5 at the bottom. The movable plates 5 are coplanar with the corresponding side plates. The adjacent sides of the two movable plates 5 abut against the two sides of the rail head. As the grate crusher moves along the track, the movable plates 5 clean the material on both sides of the rail head. Furthermore, the V-shaped plate 2 and the two movable plates 5 can also cooperate to form a limiting port 4 that matches the track cross section. The limiting port 4 is snapped onto the track, thereby achieving lateral limiting of the grate crusher and preventing the grate crusher from deviating during its travel on the track.
[0019] In Example 2, in order to improve the structural strength of the V-shaped plate 2 and extend its service life, the mounting plate 1 is provided with a mounting block 1.1. The front of the mounting block 1.1 is provided with a protrusion 1.1.1 that matches the concave surface of the V-shaped plate 2. The V-shaped plate 2 is mounted on the protrusion 1.1.1, so that the concave surface of the V-shaped plate 2 is a solid structure, which effectively prevents the protruding surface of the V-shaped plate 2 from deforming under stress. To facilitate the daily disassembly, maintenance, and replacement of the V-shaped plate 2, the protrusion 1.1.1 has several slots 1.1.2 from top to bottom. The upper end face of the protrusion 1.1.1 has mounting screw holes 1.1.4 that pass through the slots 1.1.2. The concave surface of the V-shaped plate 2 has several insert plates 2.1 that correspond to the slots 1.1.2 and are inserted into them. The insert plates 2.1 have threaded through holes 2.1.1 that are adapted to the mounting screw holes 1.1.4. The corresponding mounting screw holes 1.1.4 and threaded through holes 2.1.1 have connecting screws 1.1.5 for connecting the V-shaped plate 2 and the mounting block 1.1.
[0020] In Example 3, during the material cleaning process of the V-shaped plate 2, the material will spread to both sides of the V-shaped plate 2. This will cause the traveling mechanism of the grate crusher to come into contact with the spread material during travel, affecting the stability of the grate crusher. In order to keep the cleaned material away from the traveling mechanism of the grate crusher, the outer edges of the side plates of the V-shaped plate 2 are provided with extension plates 2.2 extending outward along the inclined surface of the side plates. The extension plates 2.2 are coplanar with the side plates of the V-shaped plate 2. The setting of the extension plates 2.2 effectively increases the material cleaning and pushing distance, so that the material is away from the grate crusher. In order to improve the structural strength of the extension plate 2.2, the mounting block 1.1 has a bayonet 1.1.3 on both sides of the front side that corresponds to and matches the extension plate 2.2. The extension plate 2.2 extends outward through the bayonet 1.1.3, and the bayonet 1.1.3 can also effectively limit and reinforce the extension plate 2.2.
[0021] In Example 4, to allow the spacing between the two movable plates 5 to be adaptively adjusted according to the width of the track and to meet the installation and cleaning requirements of different tracks, several positioning screw holes 2.3 arranged in a matrix are provided on the lower side of the side plates on both sides of the V-shaped plate 2. The upper side of the movable plate 5 is provided with fixing screw holes 5.1 that are compatible with the positioning screw holes 2.3. The corresponding fixing screw holes 5.1 and positioning screw holes 2.3 are provided with bolts 5.2 for fixing the scraper 5.3 to the V-shaped plate 2. Using the matrix-distributed positioning screw holes 2.3, the movable plate 5 can be adjusted up and down and back and forth, so that the device can be adapted to tracks of different widths.
[0022] In Example 5, since the rail web is concave, some material will accumulate inside the rail web. The movable plate 5 can only clean the material on both sides of the rail head, and cannot effectively clean the material inside the rail web. In order to clean the material inside the rail web, a scraper 5.3 is provided on the side of the two movable plates 5 adjacent to the rail head, and the scraper 5.3 extends to the rail web position.
[0023] Furthermore, the mounting plate 1 has several mounting holes 1.2 on both sides from top to bottom. The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.
Claims
1. A lifting prevention mechanism for a grate crusher, characterized in that, include: Mounting plate (1) is located on the front side of the frame of the grate crusher and is set up vertically and vertically in correspondence with the track; V-shaped plate (2) is provided on the surface of mounting plate (1). Its protruding surface is perpendicular to the upper surface of the rail head, and its lower edge abuts against the upper surface of the rail head. It is used to clean and push away the material on the upper surface of the rail head. The shovel (3) is located on the underside of the protruding surface of the V-shaped plate (2), and its end abuts against the upper surface of the rail head, and is used to pre-crush the material on the upper surface of the rail head. Two movable plates (5) are respectively located on the lower part of the side plates on both sides of the V-shaped plate (2) and are coplanar with the corresponding side plates. The adjacent sides of the two movable plates (5) respectively abut against the two sides of the rail head, and are used to clean and push away the material on both sides of the rail head.
2. The anti-lifting mechanism for a grate crusher according to claim 1, characterized in that: The mounting plate (1) has a mounting block (1.1) on its surface. The mounting block (1.1) has a protrusion (1.1.1) on its front side that matches the concave surface of the V-shaped plate (2). The V-shaped plate (2) can be detachably mounted on the protrusion (1.1.1).
3. The anti-lifting mechanism for a grate crusher according to claim 2, characterized in that: The protrusion (1.1.1) has several slots (1.1.2) from top to bottom. The upper end face of the protrusion (1.1.1) has mounting screw holes (1.1.4) that pass through the slots (1.1.2). The concave surface of the V-shaped plate (2) has several insert plates (2.1) that correspond one-to-one with the slots (1.1.2). The insert plates (2.1) have threaded through holes that are adapted to the mounting screw holes (1.1.4). 2.1.1), the corresponding mounting screw hole (1.1.4) and threaded through hole (2.1.1) are provided with connecting screws (1.1.5).
4. The anti-lifting mechanism for a grate crusher according to claim 2, characterized in that: The V-shaped plate (2) has an extension plate (2.2) extending outward along the slope of the side plate on both sides. The mounting block (1.1) has a bayonet (1.1.3) on both sides of the front that corresponds to and matches the extension plate (2.2).
5. The anti-lifting mechanism for a grate crusher according to claim 1, characterized in that: The V-shaped plate (2) and the two movable plates (5) work together to form a limiting port (4) that is compatible with the track cross section, which is used to limit the lateral movement of the grate crusher.
6. The anti-lifting mechanism for a grate crusher according to claim 5, characterized in that: The lower side of both sides of the V-shaped plate (2) is provided with several positioning screw holes (2.3) arranged in a matrix. The upper side of the movable plate (5) is provided with fixing screw holes (5.1) that are compatible with the positioning screw holes (2.3). The corresponding fixing screw holes (5.1) and positioning screw holes (2.3) are provided with bolts (5.2).
7. The anti-lifting mechanism for a grate crusher according to claim 6, characterized in that: Two movable plates (5) are provided with scrapers (5.3) on the side adjacent to the rail head. The scrapers (5.3) extend to the rail web and are used to clean the material at the rail web.
8. The anti-lifting mechanism for a grate crusher according to claim 1, characterized in that: The blade (3) is provided with reinforcing ribs (3.1) between its two sides and the V-shaped plate (2).
9. The anti-lifting mechanism for a grate crusher according to claim 1, characterized in that: The mounting plate (1) has several mounting holes (1.2) on both sides from top to bottom.