Screen fixing shaft adjustable mechanism for lump breaker

Abstract

The utility model discloses a kind of sieve net fixing shaft adjustable mechanisms for lump breaker, belong to lump breaker technical field, the sieve net fixing shaft adjustable mechanisms for lump breaker, including lump breaker main body, the lump breaker main body includes rack, lump breaker and lump breaker bin, filter screen is installed in the inside of lump breaker bin, filter screen is installed in the inside of lump breaker bin by adjusting assembly, adjusting assembly includes the net rack being set in the inside of lump breaker, filter screen is fixed in the top surface of net rack, two main shafts are rotatably connected in the rear side of the inside of lump breaker, the outer wall of main shaft is fixed with auxiliary shaft, auxiliary shaft is arranged eccentric with main shaft. The utility model is based on the structure of eccentric auxiliary shaft driven by main shaft, and net rack and filter screen can be conveniently lifted by rotating main shaft, the clearance between filter screen and lump breaker is accurately adjusted steplessly, effectively meet the operation demand of different material characteristics and different crushing granularity requirements, significantly improve the versatility and crushing effect controllability of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of block crusher technology, specifically relating to an adjustable mechanism for fixing the screen shaft of a block crusher. Background Technology

[0002] A briquetting machine (also known as a block crusher or agglomeration crusher) is an industrial piece of equipment specifically designed for crushing agglomerated, lumpy, or compacted materials. Its core function is to efficiently crush large, dense materials (such as fertilizers, feed, chemical raw materials, mineral powder, food additives, etc.) into uniform particles, ensuring smooth processing or use in subsequent applications.

[0003] The shredder uses a motor and reducer to drive the shredding blades to rotate, crushing lumpy materials. The crushed materials are then screened through a filter screen to separate smaller, qualified pieces.

[0004] Currently, the distance between the filter screen and the crushing blades cannot be precisely adjusted during use, making it difficult for the device to meet the crushing needs of different materials. For example, when crushing high-hardness materials, the filter screen and the crushing blades need to be matched with a small distance. When crushing tough materials, a large distance is needed to avoid the blades getting tangled or the screen getting clogged. When crushing dry and brittle materials, a small distance is needed for efficient crushing. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an adjustable mechanism for fixing the screen shaft of a crusher.

[0006] The technical solution adopted to solve the above technical problems is: to provide an adjustable mechanism for fixing the screen shaft of a block crusher, including a block crusher body, characterized in that the block crusher body includes a frame, a block crushing mechanism and a block crushing chamber, a filter screen is installed inside the block crushing chamber, the filter screen is installed inside the block crushing chamber through an adjustment component, the adjustment component is used to adjust the gap between the filter screen and the block crushing mechanism, the adjustment component includes a mesh frame set inside the block crushing chamber, the filter screen is fixed on the top surface of the mesh frame, two main shafts are rotatably connected to the rear side inside the block crushing chamber, a secondary shaft is fixed on the outer wall of the main shaft, the secondary shaft is eccentrically set with respect to the main shaft, and the mesh frame is rotatably connected to the outer walls of the two secondary shafts respectively.

[0007] Through the above technical solution, by setting a main shaft and a secondary shaft, and based on the structure of the main shaft driving the eccentric secondary shaft, the screen frame and filter screen can be easily raised and lowered by rotating the main shaft. The gap between the filter screen and the crushing mechanism can be adjusted steplessly and precisely, which effectively meets the operational needs of different material characteristics such as hardness, particle size, humidity and different crushing particle size requirements, and significantly improves the versatility of the equipment and the controllability of the crushing effect.

[0008] Furthermore, a main cam and a secondary cam are detachably mounted at the rear ends of the two main shafts, and a linkage rod is rotatably connected between the main cam and the secondary cam.

[0009] The above technical solution uses a linkage rod between the main cam and the auxiliary cam to ensure that the main shafts on both sides and the eccentric auxiliary shaft move in strict synchronization. This keeps the filter screen horizontal and stable during lifting and lowering, effectively avoiding jamming, tilting or one-sided wear, and greatly improving the reliability of the adjustment action and the stability of the equipment operation.

[0010] Furthermore, a number of shift holes are provided on one side of the main cam. The shift holes are arranged in an arc array with the center of the main cam as the center. A locking bolt is inserted into the interior of one of the shift holes. The locking bolt is threaded to the rear side of the fragmentation chamber.

[0011] Through the above technical solution, the arc array of gear holes on the main cam cooperates with the locking bolts to achieve precise mechanical locking of multiple gears after adjustment. This is firm and reliable, effectively preventing the main shaft from rotating unexpectedly or the gap from changing under the strong vibration generated by the crushing operation, and ensuring the stability and consistency of the working parameters.

[0012] Furthermore, a wrench is fixed to one side of the main cam, and the outer wall of the wrench is covered with a rubber sleeve.

[0013] The above technical solution, by setting a wrench with an anti-slip rubber sleeve, provides users with a direct, labor-saving, and comfortable operating point for adjusting the gap, significantly improving the ease of use of the equipment and the human-computer interaction experience.

[0014] Furthermore, the breaking mechanism includes an electric slide rail fixed to the top surface of the breaking machine body, a front cover is installed on the slide seat of the electric slide rail, a reducer and a drive motor are installed on the front side of the front cover, and the output shaft of the reducer is equipped with breaking blades.

[0015] Furthermore, the front side of the fragmentation chamber is provided with a docking hole that is the same shape as the front cover. The area of ​​the docking hole is smaller than that of the front cover, and a sealing strip is installed on the rear side of the front cover.

[0016] The above technical solution allows the entire fragmentation mechanism to be installed on an electric slide rail, enabling it to move back and forth as a whole. The design of the docking hole with a sealing strip on the front side of the fragmentation chamber ensures a leak-proof seal during docking, and greatly facilitates the inspection, replacement, and maintenance of key components such as the fragmentation blades, reducer, and drive motor when the mechanism is moved away.

[0017] Furthermore, an inspection hole is provided on the rear side of the fragmentation chamber at the position corresponding to the docking hole, and an inspection cover is rotatably connected to the rear side of the fragmentation chamber at the position corresponding to the inspection hole via a pin. The free end of the inspection cover is detachably installed to the fragmentation chamber via a nut and bolt.

[0018] The above technical solution provides a convenient rear maintenance passage by setting a quick-opening and closing inspection cover at the rear of the crushing chamber. This facilitates cleaning the inside of the crushing chamber, checking the status of the filter screen, or dealing with blockages, further improving the maintainability of the equipment and the efficiency of downtime maintenance.

[0019] The beneficial effects of this utility model are as follows:

[0020] By setting a main shaft and a secondary shaft, and based on the structure of the main shaft driving the eccentric secondary shaft, rotating the main shaft can easily raise and lower the screen frame and filter screen, and steplessly and precisely adjust the gap between the filter screen and the crushing mechanism. This effectively meets the operational needs of different material characteristics such as hardness, particle size, moisture content and different crushing particle size requirements, and significantly improves the versatility of the equipment and the controllability of the crushing effect.

[0021] By using the arc array of gear holes on the main cam in conjunction with the locking bolts, precise mechanical locking of multiple gears can be achieved after adjustment. This is secure and reliable, effectively preventing the main shaft from rotating unexpectedly or changing the clearance due to the strong vibrations generated during crushing operations, and ensuring the stability and consistency of working parameters.

[0022] By using the arc array of gear holes on the main cam in conjunction with the locking bolts, precise mechanical locking of multiple gears can be achieved after adjustment. This is secure and reliable, effectively preventing the main shaft from rotating unexpectedly or changing the clearance due to the strong vibrations generated during crushing operations, and ensuring the stability and consistency of working parameters. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of an adjustable screen fixing shaft mechanism for a block crusher according to this utility model;

[0024] Figure 2 This is a three-dimensional structural view of the front side of the crushing chamber of an adjustable screen fixing shaft mechanism for a crusher according to this utility model;

[0025] Figure 3 This is a three-dimensional structural view of the rear side of the crushing chamber of an adjustable screen fixing shaft mechanism for a crusher according to this utility model.

[0026] Figure 4 This is a three-dimensional structural diagram of the main shaft of an adjustable mechanism for fixing the screen shaft of a block crusher according to this utility model.

[0027] Figure 5 for Figure 4 Enlarged view of the partial three-dimensional structure of A.

[0028] Reference numerals in the attached drawings: 1. Main body of the crusher; 101. Frame; 102. Crushing mechanism; 103. Crushing chamber; 104. Filter screen; 2. Frame; 201. Main shaft; 202. Sub-shaft; 3. Main cam; 301. Sub-cam; 302. Linkage rod; 4. Gear hole; 401. Locking bolt; 5. Wrench; 6. Electric slide rail; 601. Front cover; 602. Crushing blade; 7. Connecting hole; 8. Inspection hole; 9. Inspection cover. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] like Figure 1-5As shown in this embodiment, an adjustable screen fixing shaft mechanism for a block crusher includes a block crusher body 1. The block crusher body 1 includes a frame 101, a block crushing mechanism 102, and a block crushing chamber 103. A filter screen 104 is installed inside the block crushing chamber 103. The top surface of the filter screen 104 has an arc-shaped structure that is adapted to the block crushing mechanism 102. The filter screen 104 is installed inside the block crushing chamber 103 through an adjustment component. The adjustment component is used to adjust the gap between the filter screen 104 and the block crushing mechanism 102. The adjustment component includes a mesh frame 2 disposed inside the block crushing chamber 103. The filter screen 104 is fixed to the top surface of the mesh frame 2. Two main shafts 201 are rotatably connected to the rear side inside the block crushing chamber 103. The outer wall of the main shafts 201 is fixed. A secondary shaft 202 is provided, with a diameter 2 to 2.5 times that of the main shaft. The secondary shaft 202 is eccentrically positioned with respect to the main shaft 201. The mesh frame 2 is rotatably connected to the outer walls of the two secondary shafts 202. When the main shaft 201 rotates, the mesh frame 2 and the filter screen 104 can be driven to rise and fall based on the structure of the main shaft 201 driving the eccentric secondary shafts 202. It is worth noting that the lifting and falling of the mesh frame 2 and the filter screen 104 is not vertical, but rather a near-vertical arc trajectory. Therefore, the mesh frame 2 and the filter screen 104 and the crushing chamber 103 also have a gap for the arc deflection of the mesh frame 2 and the filter screen 104. This gap is much smaller than the sieve holes of the filter screen 104, allowing for stepless and precise movement. The gap between the filter screen 104 and the breaking mechanism 102 is adjusted. A main cam 3 and a secondary cam 301 are detachably mounted on the rear ends of the two main shafts 201, respectively. A linkage rod 302 rotatably connects the main cam 3 and the secondary cam 301. When the main cam 3 rotates, the linkage rod 302 links the main cam 3 and the secondary cam 301, causing the cam 301 to rotate synchronously. This ensures that the two main shafts 201 and the eccentric secondary shaft 202 move in strict synchronization, keeping the filter screen 104 horizontal and stable during lifting and lowering, effectively preventing jamming, tilting, or one-sided wear. Several stop holes 4 are provided on one side of the main cam 3, arranged in an arc array around the center of the main cam 3. A locking bolt 401 is inserted into one of the gear position holes 4. The locking bolt 401 is connected to the rear thread of the crushing chamber 103. After the filter screen 104 is adjusted into place, the locking bolt 401 is inserted into the corresponding gear position hole 4 and connected to the rear thread of the crushing chamber 103 to lock the main shaft 201. This prevents the main shaft 201 from rotating unexpectedly or changing its clearance due to the strong vibration generated during the crushing operation, ensuring the stability and consistency of the working parameters. A wrench 5 is fixed on one side of the main cam 3. The outer wall of the wrench 5 is covered with a rubber sleeve. By setting the wrench 5 with a non-slip rubber sleeve, the user is provided with a direct, labor-saving and comfortable operating point for adjusting the clearance, which significantly improves the ease of use of the equipment and the human-machine interaction experience.

[0031] The briquetting mechanism 102 includes an electric slide rail 6 fixed to the top surface of the briquetting machine body 1. A front cover 601 is mounted on the slide of the electric slide rail 6. A reducer and a drive motor are mounted on the front side of the front cover 601. The output shaft of the reducer is equipped with briquetting blades 602. A mating hole 7 with the same shape as the front cover 601 is opened on the front side of the briquetting chamber 103. The area of ​​the mating hole 7 is smaller than that of the front cover 601. A sealing strip is installed on the rear side of the front cover 601. When the electric slide rail 6 is started, it drives the front cover 601, the reducer and the drive motor to move as a whole, so that the briquetting blades 602 are inserted into the briquetting chamber 103 and maintain a predetermined gap with the adjusted filter screen 104. At this time, the front cover 601 and the briquetting chamber 103 are in sealed contact. A positioning hole (not shown in the figure) is provided at the position of the main shaft 201. At this time, the front end of the main shaft 201 is inserted into the positioning hole to achieve positioning. At this time, materials can be fed into the crushing chamber 103 for crushing operation. A maintenance hole 8 is provided on the rear side of the crushing chamber 103 corresponding to the docking hole 7. A maintenance cover 9 is rotatably connected to the rear side of the crushing chamber 103 corresponding to the maintenance hole 8 by a pin. The free end of the maintenance cover 9 is detachably installed with the crushing chamber 103 by nuts and bolts. The maintenance cover 9, which can be quickly opened and closed, is provided on the rear side of the crushing chamber, providing a convenient rear maintenance channel for cleaning the inside of the crushing chamber 103, checking the status of the filter screen 104, or dealing with blockages, further improving the maintainability of the equipment and the efficiency of downtime maintenance.

[0032] The working principle of this embodiment is as follows: by pressing down or lifting the wrench 5, the main cam 3 rotates. Since the main cam 3 and the secondary cam 301 are linked by a linkage rod 302, the two main shafts 201 and the eccentric secondary shaft 202 move in strict synchronization. Based on the structure of the main shaft 201 driving the eccentric secondary shaft 202, rotating the main shaft 201 can easily raise and lower the screen frame 2 and the filter screen 104, and steplessly and precisely adjust the gap between the filter screen 104 and the breaking mechanism 102. After adjusting the position of the filter screen 104, the locking bolt 401 is aligned with the corresponding stop hole. 4. Insert and connect the main shaft 201 to the rear thread of the crushing chamber 103 to lock the main shaft 201. This prevents the main shaft 201 from rotating unexpectedly or changing its gap due to the strong vibration generated during the crushing operation, ensuring the stability and consistency of the working parameters. Then, start the electric slide rail 6 to drive the front cover 601, reducer and drive motor to move as a whole, so that the crushing blade 602 is inserted into the crushing chamber 103 and maintains a predetermined gap with the adjusted filter screen 104. At this time, the front cover 601 and the crushing chamber 103 are sealed and abutted. At this time, materials can be put into the crushing chamber 103 for crushing operation.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. An adjustable mechanism for fixing the screen shaft of a block crusher, comprising the block crusher body (1), characterized in that, The main body (1) of the block crusher includes a frame (101), a block crushing mechanism (102) and a block crushing chamber (103). A filter screen (104) is installed inside the block crushing chamber (103). The filter screen (104) is installed inside the block crushing chamber (103) through an adjustment component. The adjustment component is used to adjust the gap between the filter screen (104) and the block crushing mechanism (102). The adjustment assembly includes a mesh frame (2) set inside the crushing chamber (103), a filter screen (104) fixed on the top surface of the mesh frame (2), two main shafts (201) rotatably connected to the rear side inside the crushing chamber (103), a secondary shaft (202) fixed on the outer wall of the main shaft (201), the secondary shaft (202) being eccentrically set with the main shaft (201), and the mesh frame (2) rotatably connected to the outer walls of the two secondary shafts (202) respectively.

2. The adjustable mechanism for fixing the screen shaft of a crusher according to claim 1, characterized in that, The rear ends of the two main shafts (201) are respectively detachably equipped with a main cam (3) and a secondary cam (301), and a linkage rod (302) is rotatably connected between the main cam (3) and the secondary cam (301).

3. The adjustable mechanism for fixing the screen shaft of a crusher according to claim 2, characterized in that, The main cam (3) has several gear holes (4) on one side. The gear holes (4) are arranged in an arc array with the center of the main cam (3) as the center. A locking bolt (401) is inserted into the inside of one of the gear holes (4). The locking bolt (401) is threaded to the rear side of the fragmentation chamber (103).

4. The adjustable mechanism for fixing the screen shaft of a crusher according to claim 3, characterized in that, A wrench (5) is fixed to one side of the main cam (3), and the outer wall of the wrench (5) is covered with a rubber sleeve.

5. The adjustable mechanism for fixing the screen shaft of a crusher according to claim 4, characterized in that, The breaking mechanism (102) includes an electric slide rail (6) fixed on the top surface of the breaking machine body (1). A front cover (601) is installed on the slide of the electric slide rail (6). A reducer and a drive motor are installed on the front side of the front cover (601). The output shaft of the reducer is equipped with breaking blades (602).

6. The adjustable mechanism for fixing the screen shaft of a crusher according to claim 5, characterized in that, The front side of the fragmentation chamber (103) has a docking hole (7) with the same shape as the front cover (601). The area of ​​the docking hole (7) is smaller than that of the front cover (601). A sealing strip is installed on the rear side of the front cover (601).

7. The adjustable mechanism for fixing the screen shaft of a crusher according to claim 6, characterized in that, The rear side of the crushing chamber (103) is provided with an inspection hole (8) corresponding to the docking hole (7). The rear side of the crushing chamber (103) is rotatably connected to the inspection hole (8) by a pin. The free end of the inspection cover (9) is detachably installed with the crushing chamber (103) by a nut and bolt.

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