Single-stage hammer crusher with convenient adjustment

Abstract

The utility model discloses a single -segment hammer type crusher of convenient adjustment, including the rotor of installing in the crushing cavity, installs rotor hammer disc on the rotor, installs the hammer head on rotor hammer disc, installs the grate frame at the bottom of the crusher, installs the discharge grate on the grate frame, and the grate frame is the lifting structure, and the lifting structure includes the connecting frame of setting outside the crusher shell, the grate frame lifting adjustment lead screw and the grate frame axle, both ends of the grate frame are fixed with the grate frame axle, and the grate frame axle adjustment hole is arranged on the crusher shell body, and the grate frame axle extends the grate frame axle adjustment hole to the outside of the crusher shell body, and the end of each grate frame axle is fixedly provided with the grate frame lifting adjustment lead screw, and the top of the grate frame lifting adjustment lead screw passes through the through -hole on the connecting piece, and the grate frame lifting adjustment lead screw is fastened on the connecting frame through the fastening nut, the utility model can guarantee the uniformity of the discharge granularity of the crusher, thereby reduce the labor intensity when the worker frequently changes the grate or rotor motor, increase the use start -up rate of large -scale single -segment crusher, improve the economic benefit of the use enterprise.

Description

Technical Field

[0001] This utility model relates to a large single-stage hammer crusher, and more particularly to a single-stage hammer crusher that can be easily adjusted. Background Technology

[0002] A single-stage hammer crusher is a device that uses high-speed rotating hammers to impact materials, causing them to break along fragile parts such as natural fissures, bedding planes, and joints. It is widely used in mining, building materials, and metallurgy industries. However, existing single-stage hammer crushers have a problem with adjusting the crushing effect: the gap between the grate and the hammers is difficult to adjust. The grate is a key component for controlling the output particle size, but most existing crusher grates are fixed. Fixed grates cannot adjust the distance between the grate and hammers in real time according to material characteristics and production needs. Furthermore, large, heavy iron blocks or metal ore pieces entering the crusher may become stuck between the grate and hammers if not completely crushed, potentially causing the rotor motor to burn out, severely impacting production efficiency and increasing maintenance costs. Summary of the Invention

[0003] The purpose of this utility model patent is to overcome the above-mentioned defects and design a conveniently adjustable single-stage hammer crusher, solving the problem of inconvenient grate adjustment in existing single-stage hammer crushers, achieving convenient and precise adjustment of crushing effect, improving production efficiency and product quality, and reducing production costs.

[0004] The objective of this utility model is achieved through the following technical solution: A conveniently adjustable single-stage crusher includes a rotor installed inside the crushing chamber, a rotor hammer disc mounted on the rotor, hammers mounted on the rotor hammer disc, a grate frame installed at the bottom of the crusher, and a discharge grate plate mounted on the grate frame. The grate frame is a lifting structure, which includes a connecting frame outside the crusher housing, a grate lifting adjustment screw, and a grate shaft. The grate shaft is fixed at both ends of the grate frame, and the crusher housing has grate shaft adjustment holes. The grate shaft extends out of the grate shaft adjustment holes to the outside of the crusher housing. A grate lifting adjustment screw is fixed at the end of each grate shaft. The top of the grate lifting adjustment screw passes through a through hole on the connecting piece, and the grate lifting adjustment screw is fastened to the connecting frame by a fastening nut.

[0005] In the aforementioned easily adjustable single-stage hammer crusher, the through holes on the connecting frame are horizontal strip-shaped adjustment holes, and the adjustment holes on the grate shaft are vertical strip-shaped holes.

[0006] The aforementioned easily adjustable single-stage hammer crusher also includes a grate lifting cantilever beam and a grate lifting counterweight. The grate is formed by the engagement of a fixed grate part and a movable grate part. Discharge grates are installed on both the fixed and movable grate parts. The grate lifting adjustment screw includes a fixed grate lifting adjustment screw and a movable grate lifting adjustment screw. The grate shaft includes a fixed grate shaft and a movable grate shaft. Fixed grate shafts are provided at both ends of the fixed grate part, and both ends of each fixed grate shaft are fixedly connected. The fixed part of the grate is connected to the lifting and adjusting screw. The other end of the lifting and adjusting screw passes through the through hole on the connecting frame and is fastened to the connecting frame by a fastening nut. Movable grate shafts are fixedly installed at both ends of the movable part of the grate. The bottom of the movable grate lifting and adjusting screw is fixedly connected to both ends of the movable grate shaft. The top of the movable grate lifting and adjusting screw passes through the through hole on the connecting frame and is fastened by a fastening nut. Grate lifting cantilever beams are fixedly installed at both ends of the movable grate shaft. Grate lifting counterweights are installed at the ends of the two cantilever beams.

[0007] The aforementioned conveniently adjustable single-stage hammer crusher has at least two supporting round holes on the fixed part of the grate frame. A fixed part grate frame shaft passes through each supporting round hole. Both ends of the fixed part grate frame shaft pass through the grate frame shaft adjustment holes on the crusher housing. A supporting round hole is provided on the movable part of the grate frame. After the movable part grate frame shaft passes through the supporting round hole, both ends are fixed to the grate frame by bushings and fixing pins. Both ends of the movable part grate frame shaft also pass through the corresponding grate frame shaft adjustment holes on the crusher housing.

[0008] In the aforementioned easily adjustable single-stage hammer crusher, the two ends of the grate lifting counterweight block are engaged with the lower ends of the two grate lifting cantilever beams.

[0009] In the aforementioned easily adjustable single-stage hammer crusher, the fixed part grate shaft and the grate frame are rotatably connected, while the movable part grate shaft and the movable part of the grate frame are fixedly connected.

[0010] In the aforementioned easily adjustable single-stage hammer crusher, hooks are provided at both ends of the lower part of the movable part of the grate frame. The hooks engage with the grate frame shaft of the fixed part, and the lower part of the movable part of the grate frame and the lower part of the fixed part of the grate frame are connected to form an integral grate frame.

[0011] Compared with the prior art, the present invention has the following technical effects: This utility model patent, through the aforementioned convenient adjustment structure, adjusts the gap between the crusher grate and hammers by raising the grate frame upwards from the outside of the crusher after the hammers on the crusher rotor are shortened and the grate plate thinned. This maintains the gap between the crusher grate and hammers within a stable range, thereby ensuring the stability of the crusher's output particle size. After replacing new hammers or grate plates, the gap between the crusher grate and hammers is adjusted downwards to maintain a stable range, thus ensuring the stability of the crusher's output particle size. This utility model can guarantee the uniformity of the crusher's output particle size, thereby reducing the labor intensity of workers when frequently changing grate plates or rotor motors, increasing the uptime of large single-stage crushers, and improving the economic benefits for the user company. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a top view of the present invention.

[0014] Figure 3 This is a reference diagram for the use of this utility model when removing large, heavy metal blocks. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] like Figure 1-3As shown, a conveniently adjustable single-stage crusher includes a rotor 1 installed in the crushing chamber, a rotor hammer disc 9 mounted on the rotor, hammers 7 mounted on the rotor hammer disc, a grate frame 5 installed at the bottom of the crusher, and a discharge grate plate 6 mounted on the grate frame 5. The grate frame is a lifting structure, which includes a connecting frame 10 set outside the crusher housing, a grate lifting adjustment screw 2, and a grate shaft 8. The grate shaft 8 is fixed at both ends of the grate frame 5. The crusher housing is provided with grate shaft adjustment holes, and the grate shaft extends out of the grate shaft adjustment holes to the outside of the crusher housing. A grate lifting adjustment screw 2 is fixed at the end of each grate shaft. The top of the grate lifting adjustment screw passes through a through hole on the connecting piece, and the grate lifting adjustment screw is fastened to the connecting frame by a fastening nut. The through hole on the connecting frame is a horizontal strip-shaped adjustment hole, and the grate shaft adjustment hole is a vertical strip-shaped hole.

[0018] The conveniently adjustable single-stage crusher of this utility model further includes a grate lifting cantilever beam 3 and a grate lifting counterweight block 4. The grate is formed by the engagement of a grate fixed part 5-1 and a grate movable part 5-2. Discharge grates are installed on both the grate fixed part and the grate movable part. The grate lifting adjustment screw includes a fixed part grate lifting adjustment screw 2-1 and a movable part grate lifting adjustment screw 2-2. The grate shaft includes a fixed part grate shaft 8-1 and a movable part grate shaft 8-2. Fixed part grate shafts 8-1 are provided at both ends of the grate fixed part. Each fixed part grate shaft... Both ends of the fixed part of the grate frame are fixedly connected to the lifting and adjusting screw 2-1. The other end of the lifting and adjusting screw of the fixed part of the grate frame passes through the through hole on the connecting frame 10 and is fastened to the connecting frame by a fastening nut. Both ends of the movable part of the grate frame are fixedly set with the bottom of the lifting and adjusting screw 2-2 of the movable part of the grate frame. The top of the lifting and adjusting screw of the movable part of the grate frame passes through the through hole on the connecting frame and is fastened by a fastening nut. The grate lifting cantilever beam 3 is fixedly set at both ends of the movable grate shaft. The grate lifting counterweight block 4 is set at the ends of the two cantilever beams. When there are large, heavy pieces of material that cannot be broken in time, the grate lifting counterweight, the movable part of the grate, and the grate lifting adjustment screw work together to cause the movable part of the grate to slide off the fixed part of the grate under the weight of the large, heavy material. This opens the grate and allows the large, heavy material to fall. After the large material falls, the movable part of the grate flips upward under the action of the grate lifting counterweight and engages with the fixed part of the grate.

[0019] The grate plate of this utility model is fixed to the grate frame with bolts, and the output particle size of the crusher is controlled by the size of its grate gaps and the distance between it and the hammer.

[0020] The connecting frame of this invention has horizontal strip-shaped adjustment holes, and the grate shaft adjustment holes are vertical strip-shaped holes. This allows the grate frame to be adjusted upwards or downwards from outside the crusher, based on the output particle size, without stopping the machine, thereby adjusting the gap between the grate plate and the hammers and ensuring that this gap remains within a stable range.

[0021] The movable part of the grate frame, the movable part grate frame shaft, the movable part grate frame lifting adjustment screw, the grate frame lifting cantilever beam, and the grate frame lifting counterweight of this utility model work together to ensure that the movable part of the grate frame is tightly engaged with the fixed part of the grate frame when there is no heavy material entering, allowing for normal operation. After a period of operation, when the hammers on the crusher rotor wear down and the grate plate becomes thinner, and it is necessary to adjust the gap between the grate plate and the hammers, simply adjusting the lifting adjustment screws of both the movable and fixed parts of the grate frame simultaneously upwards will lift both the fixed and movable parts of the grate frame upwards from outside the crusher casing, adjusting the gap between the crusher grate plate and the hammers to maintain it within a stable range, thereby ensuring stable output from the crusher. When encountering large, heavy materials that cannot be crushed in a short time, the weight of the large material presses down on the movable part of the grate frame. Under the action of gravity, the movable part of the grate frame can disengage from the fixed part of the grate frame, causing the large material to fall. After the large material falls, the movable part of the grate frame rotates upward under the action of the grate frame lifting counterweight until it rotates to the fixed part of the grate frame and engages.

[0022] The conveniently adjustable single-stage hammer crusher of this utility model has at least two supporting round holes on the fixed part of the grate frame. A fixed part grate frame shaft 8-1 is inserted into each supporting round hole. The two ends of the fixed part grate frame shaft pass through the grate frame shaft adjustment holes on the crusher housing. A supporting round hole is provided on the movable part of the grate frame. After the movable part grate frame shaft 8-2 passes through the supporting round hole, its two ends are fixed to the grate frame by bushings and fixing pins. The two ends of the movable part grate frame shaft also pass through the corresponding grate frame shaft adjustment holes on the crusher housing.

[0023] The single-stage hammer crusher with convenient adjustment described in this utility model has its two ends of the grate lifting counterweight block connected to the lower ends of the two grate lifting cantilever beams.

[0024] The conveniently adjustable single-stage hammer crusher of this utility model has a rotatable connection between the fixed part grate shaft and the grate frame, and a fixed connection between the movable part grate shaft and the movable part of the grate frame.

[0025] The conveniently adjustable single-stage hammer crusher of this utility model features hooks 11 at both ends of the lower part of the movable section of the grate frame. These hooks engage with the grate frame shaft of the fixed section, and the lower part of the movable section connects with the lower part of the fixed section to form an integral grate frame. After the hammers on the crusher rotor are shortened and the grate plates are thinned, this utility model adjusts the gap between the crusher grate plates and hammers by lifting the grate frame upwards from the outside of the crusher, maintaining the gap within a stable range to ensure stable output particle size. After replacing the hammers or grate plates, the gap between the crusher grate plates and hammers is adjusted downwards to maintain a stable range, thus ensuring stable output particle size. Furthermore, when there are large, heavy pieces of material that cannot be crushed in time, the coordinated action of the grate lifting counterweight, the grate frame movable part, and the grate frame lifting adjustment screw causes the grate frame movable part to slide off the grate frame fixed part under the weight of the large, heavy material, thus opening the grate frame and allowing the large, heavy material to slide down. After the large material falls, the grate frame movable part flips upward under the action of the grate lifting counterweight and engages with the grate frame fixed part. This utility model not only ensures the uniformity of the crusher's output particle size during normal operation, but also prevents the machine from burning out in special circumstances, such as when encountering large, heavy pieces of material (e.g., large iron blocks). This reduces the labor intensity of workers who frequently need to replace grate plates or rotor motors, increases the uptime of large single-stage crushers, and improves the economic benefits for the user company.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A conveniently adjustable single-stage hammer crusher, comprising a rotor (1) installed in a crushing chamber, a rotor hammer disc (9) installed on the rotor, hammers (7) installed on the rotor hammer disc, a grate frame (5) installed at the bottom of the crusher, and a discharge grate plate (6) installed on the grate frame (5), characterized in that: The grate frame is a lifting structure, which includes a connecting frame (10) set outside the crusher housing, a grate lifting adjustment screw (2) and a grate shaft (8); the grate frame (5) has grate shafts (8) fixed at both ends, and grate shaft adjustment holes are provided on the crusher housing. The grate shafts extend out of the grate shaft adjustment holes to the outside of the crusher housing. A grate lifting adjustment screw (2) is fixed at the end of each grate shaft. The top of the grate lifting adjustment screw passes through the through hole on the connector, and the grate lifting adjustment screw is fastened to the connecting frame by a fastening nut.

2. The conveniently adjustable single-stage hammer crusher according to claim 1, characterized in that: The through holes on the connecting frame are horizontal strip-shaped adjustment holes, and the adjustment holes on the grate shaft are vertical strip-shaped holes.

3. The conveniently adjustable single-stage hammer crusher according to claim 1, characterized in that: The grate lifting cantilever beam includes a grate lifting cantilever beam (3) and a grate lifting counterweight (4). The grate is formed by the engagement of a grate fixed part (5-1) and a grate movable part (5-2). Discharge grates are installed on both the grate fixed part and the grate movable part. The grate lifting adjustment screw includes a fixed part grate lifting adjustment screw (2-1) and a movable part grate lifting adjustment screw (2-2). The grate shaft includes a fixed part grate shaft (8-1) and a movable part grate shaft (8-2). Fixed part grate shafts (8-1) are set at both ends of the grate fixed part. Each fixed part grate shaft has two ends. The fixed part of the grate is fixedly connected to the lifting adjustment screw (2-1). The other end of the fixed part of the grate is passed through the through hole on the connecting frame (10) and fastened to the connecting frame by a fastening nut. The movable part of the grate is fixedly installed at both ends of the movable part of the grate. The bottom of the movable part of the grate is fixedly connected to both ends of the movable part of the grate. The top of the movable part of the grate is passed through the through hole on the connecting frame and fastened by a fastening nut. The grate lifting cantilever beam (3) is fixedly installed at both ends of the movable grate shaft. The grate lifting counterweight block (4) is installed at the ends of the two cantilever beams.

4. The conveniently adjustable single-stage hammer crusher according to claim 3, characterized in that: At least two support holes are provided on the fixed part of the grate frame. A fixed part grate frame shaft (8-1) is inserted into each support hole. Both ends of the fixed part grate frame shaft pass through the grate frame shaft adjustment holes on the crusher housing. A support hole is provided on the movable part of the grate frame. After the movable part grate frame shaft (8-2) passes through the support hole, both ends are fixed to the grate frame by bushings and fixing pins. Both ends of the movable part grate frame shaft also pass through the corresponding grate frame shaft adjustment holes on the crusher housing.

5. The conveniently adjustable single-stage hammer crusher according to claim 3, characterized in that: The two ends of the grate lifting counterweight block are engaged with the lower ends of the two grate lifting cantilever beams.

6. The conveniently adjustable single-stage hammer crusher according to claim 3, characterized in that: The fixed part of the grate frame shaft is rotatably connected to the grate frame, while the movable part of the grate frame shaft is fixedly connected to the movable part of the grate frame.

7. The conveniently adjustable single-stage hammer crusher according to claim 3, characterized in that: Both ends of the lower part of the movable part of the grate frame are provided with hooks (11), which are engaged with the grate frame shaft of the fixed part. The lower part of the movable part of the grate frame and the lower part of the fixed part of the grate frame are connected to form an integral grate frame.

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