Crusher with main shaft center blowing function

Abstract

The invention provides a crusher with main shaft center blowing, which comprises a crusher box body, the top of the crusher box body is provided with a feeding bin, the crusher box body is internally provided with a crushing mechanism, the crushing mechanism comprises a crushing main shaft assembly and a screen mesh assembly, the crushing main shaft assembly comprises a blowing main shaft which is transversely arranged in the middle of the crusher box body, and the blowing main shaft is arranged in the middle of the crusher box body. Rotating joints are installed at the two ends of the blowing main shaft, a central through hole is formed between the two rotating joints, a plurality of sets of blowing holes are formed in the surface of the blowing main shaft, the central through hole is connected with the blowing holes in the surface of the blowing main shaft through blowing branch holes, and a plurality of sets of cutter heads are installed on the blowing main shaft in the transverse direction; a plurality of groups of crushing moving cutters are arranged between the cutter heads; and the screen assembly is arranged below the blowing main shaft. The main shaft center blowing function is added, broken materials are blown through the main shaft center, the materials with the qualified size are sprayed out of the screen more quickly through air pressure, the discharging rate is increased, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing equipment, in particular to a crusher with main shaft center blowing. Background Art

[0002] Crusher is an essential piece of equipment in modern industry, efficiently converting bulk materials into small particles that meet specific process or application requirements. With technological advancements, crushers are developing towards higher efficiency, lower energy consumption, higher reliability, intelligent control, and improved product shape and environmental performance.

[0003] Most crushers have a screen beneath the main shaft. This allows larger pieces of material to be crushed multiple times by the cutters, while smaller pieces fall through the screen into the storage hopper. Existing crushers discharge material by crushing it in the crushing mechanism, then using the main shaft to rotate and squeeze the material, forcing the qualified size material out through the screen. This screen is subject to high pressure and wears quickly. Furthermore, the existing crusher screen requires regular cleaning, which not only affects production efficiency but also increases equipment maintenance workload, resulting in lower production efficiency. Furthermore, existing crusher main shafts lack an air blower function, causing some crushed material to adhere to the main shaft or cutterhead, making it difficult to clean. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention proposes a crusher with spindle center blowing, which adds the function of spindle center blowing. The crushed material passes through the spindle center blowing function, so that the qualified size of the material is sprayed out of the screen through the air pressure faster, increasing the discharge rate, improving production efficiency, and making it easy to remove the material adhering to the spindle or cutter disc, thereby improving the crushing quality.

[0005] To achieve the above technical solution, the present invention provides a crusher with a main shaft center blowing, comprising: a crusher box, a feed bin is installed on the top of the crusher box, a crushing mechanism is installed in the crusher box, the crushing mechanism includes a crushing main shaft assembly and a screen assembly, the crushing main shaft assembly includes a blowing main shaft installed laterally in the middle of the crusher box, one end of the blowing main shaft is connected to the main shaft driving device, and rotating joints are installed at both ends of the blowing main shaft, and the two rotating joints are connected through a central through hole, a plurality of groups of blowing holes are provided on the surface of the blowing main shaft, and the central through hole and the blowing holes on the surface of the blowing main shaft are connected through blowing sub-holes, and a plurality of groups of parallel and spaced cutter discs are installed laterally on the blowing main shaft, and the cutter discs are arranged between them. It is equipped with multiple groups of crushing moving knives distributed in a circular array with the center of the blowing spindle as the center of the circle. The screen assembly is installed below the blowing spindle. The screen assembly includes an arc-shaped screen mounting frame. The screen is installed on the screen mounting frame. The front end of the screen mounting frame is provided with a shaft sleeve, and the rotating shaft is installed in the shaft sleeve. The left and right ends of the rotating shaft are equipped with rotating shaft connecting rods, and one end of the rotating shaft connecting rod is connected to the screen adjusting cylinder. The outside of the crusher case is equipped with a blowing mechanism, a suction mechanism, an air compressor and a hydraulic station. The air compressor is connected to the rotary joint on the blowing spindle, the blowing mechanism is communicated with the crushing chamber provided on the crusher case, the suction mechanism is connected to the discharge channel provided on the crusher case, and the hydraulic station is connected to the screen adjusting cylinder.

[0006] In the above technical solution, during actual operation, the material to be crushed enters the crushing chamber provided on the crusher body through the feed bin, and then the blowing spindle rotates at high speed driven by the spindle drive device, and the material in the crushing chamber is crushed by the crushing movable knife installed on the blowing spindle, and the crushed material is screened through the screen assembly. At the same time, the air compressor ventilates the blowing spindle, and the central through hole ejects high-pressure air from the blowing hole on the surface of the blowing spindle through the blowing hole, so that the crushing chamber of the crusher has an air pressure greater than 0.4Mpa and blows air out of the crushing chamber, so that materials of qualified size are ejected out of the screen faster through the air pressure, thereby increasing the discharge rate and improving production efficiency. The materials screened by the screen are finally output outward through the suction mechanism. And through the structural design of the screen assembly, the distance between the screen and the crushing moving knife in the crushing spindle assembly can be adjusted by the screen adjusting cylinder, so that the spacing and pressure between the screen and the crushing spindle assembly can be adjusted to meet the pressure and spacing requirements when crushing different materials. Moreover, when the screen needs to be replaced, the screen adjusting cylinder can be used to quickly separate the screen assembly from the crushing spindle assembly, thereby improving the efficiency of screen replacement.

[0007] Preferably, the movable crushing blade includes a blade mounting seat, which is mounted on the cutterhead, and a blade body mounted on the blade mounting seat. A plurality of adjustment bolts are mounted below the blade body. During actual operation, the mounting position of the blade body can be fine-tuned using the adjustment bolts to better meet the operating requirements of the equipment by ensuring the clearance between the movable and fixed blades during crushing.

[0008] Preferably, a fixed blade mechanism is mounted within the crusher housing, located on one side of the crushing spindle assembly. The fixed blade mechanism comprises a crushing fixed blade, with a fixed blade pressure plate mounted on the end of the crushing fixed blade. During operation, the high-speed rotation between the crushing fixed blade and the crushing movable blade mounted on the air-blowing spindle creates shearing, enabling more efficient material crushing. Furthermore, the gap between the crushing fixed blade and the crushing movable blade can be adjusted using an adjusting bolt to better meet the crushing requirements of different materials.

[0009] Preferably, the crusher housing includes a bottom housing, a lower housing, and an upper housing. The lower housing is mounted on the bottom housing, and the upper housing is mounted on the lower housing. The upper and lower housings are hinged at their rear ends. The fixed ends of the upper and lower housing opening and closing cylinders are fixed to the lower housing. The telescopic ends of the upper and lower housing opening and closing cylinders are connected to the front end of the upper housing via an upper housing connecting rod. When the upper and lower housings are closed, a crushing chamber is formed. The crushing spindle assembly and screen assembly are both mounted within the crushing chamber. During actual operation, the upper and lower housings can be opened and closed by the upper and lower housing opening and closing cylinders, facilitating tool replacement or maintenance.

[0010] Preferably, the blowing mechanism includes a blowing blower and a blowing pipe. The blowing blower is installed outside the crusher housing and is connected to the crusher bottom box via the blowing pipe. During actual operation, the blowing blower blows high-pressure gas through the blowing pipe through the bottom box to blow the material into the suction pipe of the suction mechanism, and the material is then sucked out by the suction mechanism.

[0011] Preferably, the suction mechanism includes a suction blower and a suction pipe, wherein the suction blower is connected to a discharge channel arranged at the bottom of the crusher housing through the suction pipe. During actual operation, the suction blower can quickly transport the screened materials in the discharge channel out through the suction pipe.

[0012] Preferably, the spindle drive device includes a spindle drive motor and a pulley, wherein the pulley is mounted on the end side of the blowing spindle, and the spindle drive motor is connected to the pulley mounted on the blowing spindle via a belt. During actual operation, the spindle drive motor drives the pulley to rotate at high speed, thereby driving the blowing spindle to rotate at high speed.

[0013] Preferably, a control system is further installed on the outside of the crusher housing, and the control system is respectively connected to the blowing mechanism, the suction mechanism, the crushing mechanism, the hydraulic station, and the air compressor. During actual operation, the blowing mechanism, the suction mechanism, the crushing mechanism, the hydraulic station, and the air compressor are linked together by the control system.

[0014] The beneficial effects of the invention of a crusher with main shaft center blowing are:

[0015] (1) This crusher with a central air blowing spindle has a simple structure and a reasonable design. It solves the problem of the crusher being easily blocked by the screen during production, thus affecting production efficiency. The addition of the central air blowing function of the spindle can improve the material discharge rate. During actual operation, the material to be crushed enters the crushing chamber provided on the crusher housing through the feed bin. Then, the air blowing spindle rotates at high speed under the drive of the spindle drive device. The material in the crushing chamber is crushed by the crushing moving knife installed on the air blowing spindle, and the crushed material is screened through the screen assembly. At the same time, the air compressor ventilates the air blowing spindle, and the central through hole ejects high-pressure air from the air holes on the surface of the air blowing spindle through the air distribution hole, so that the crushing chamber of the crusher has an air pressure greater than 0.4Mpa and blows air out of the crushing chamber, so that the qualified size of the material is ejected out of the screen faster through the air pressure, thereby increasing the discharge rate and improving production efficiency. It is also easy to remove the material adhering to the spindle or the cutter head, thereby improving the crushing quality.

[0016] (2) The present invention improves the problem of the crusher requiring frequent cleaning and replacement of the screen, thereby reducing the workload of equipment maintenance. Furthermore, through the structural design of the screen assembly, the distance between the screen and the crushing moving blade in the crushing spindle assembly can be adjusted by the screen adjustment cylinder, thereby making the spacing and pressure between the screen and the crushing spindle assembly adjustable to meet the pressure and spacing requirements for crushing different materials. Moreover, when the screen needs to be replaced, the screen adjustment cylinder can be used to quickly separate the screen assembly from the crushing spindle assembly, thereby improving the efficiency of screen replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a left front view of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a right front view of the three-dimensional structure of the present invention.

[0019] Figure 3 It is a top view of the present invention.

[0020] Figure 4 It is a cross-sectional view of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the crushing spindle assembly in the present invention.

[0022] Figure 6 It is a cross-sectional view of the crushing spindle assembly in the present invention.

[0023] Figure 7 It is a side view of the crushing spindle assembly in the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the screen assembly in the present invention.

[0025] Figure 9 It is a side view of the screen assembly in the present invention.

[0026] Figure: 1. Feed bin; 2. Crusher housing; 21. Bottom box; 22. Lower housing; 23. Crushing chamber; 24. Upper housing; 3. Blowing mechanism; 31. Blower; 32. Blowing pipe; 4. Suction mechanism; 41. Suction blower; 42. Suction pipe; 5. Crushing mechanism; 51. Crushing spindle assembly; 511. Blowing spindle; 512. Cutter head; 513. Crushing moving blade; 5131. Blade mounting seat; 5132 , blade body; 5133, adjusting bolt; 514, rotating joint; 515, center through hole; 516, air blowing hole; 52, screen assembly; 521, screen mounting bracket; 522, screen; 523, bushing; 524, rotating shaft; 525, rotating shaft connecting rod; 53, screen adjustment cylinder; 6, control system; 71, upper and lower box opening and closing cylinder; 72, upper box connecting rod; 73, crushing fixed knife; 8, hydraulic station; 9, air compressor. DETAILED DESCRIPTION

[0027] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary persons in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment: A crusher with main shaft center blowing.

[0029] Reference Figures 1 to 9 As shown, a crusher with main shaft center blowing comprises:

[0030] The crusher housing 2 includes a bottom housing 21, a lower housing 22, and an upper housing 24. The lower housing 22 is mounted on the bottom housing 21, and the upper housing 24 is mounted on the lower housing 22. The upper housing 24 is hinged to the rear end of the lower housing 22. The fixed end of the upper and lower housing opening and closing cylinders 71 is fixed to the lower housing 22. The telescopic end of the upper and lower housing opening and closing cylinders 71 is connected to the front end of the upper housing 24 via an upper housing connecting rod 72. When the upper and lower housings 24 and 22 are closed, a crushing chamber 23 is formed. The crushing spindle assembly 51 and the screen assembly 52 are both mounted in the crushing chamber 23. During actual operation, the upper and lower housings 24 and 22 can be opened and closed by the upper and lower housing opening and closing cylinders 71 to facilitate tool replacement or maintenance.

[0031] The feed bin 1 is mounted on top of the lower housing 22 and communicates with the crushing chamber 23. The crushing mechanism 5 is mounted within the crushing chamber 23 provided on the lower housing 22. The crushing mechanism 5 includes a crushing spindle assembly 51 and a screen assembly 52. ​​The crushing spindle assembly 51 includes a blow spindle 511 installed transversely within the crushing chamber 23. One end of the blow spindle 511 is connected to a spindle drive device, which includes a spindle drive motor and a pulley mounted on the end of the blow spindle. The spindle drive motor is connected to a pulley mounted on the blow spindle 511 via a belt. During actual operation, the spindle drive motor drives the pulley to rotate at high speed, thereby driving the blow spindle 511 to rotate at high speed.

[0032] Both ends of the blowing main shaft 511 are equipped with a rotary joint 514, the rotary joint 514 is connected to the air compressor 9, and the two rotary joints 514 are connected through a central through hole 515. A plurality of blowing holes are provided on the surface of the blowing main shaft 511, and the central through hole 515 is connected to the blowing holes on the surface of the blowing main shaft via a blowing branch hole 516. A plurality of groups of parallel and spaced cutter discs 512 are installed horizontally on the blowing main shaft 511, and a plurality of groups of crushing movable knives 513 are installed between the cutter discs 512 in a circular array with the center of the blowing main shaft 511 as the center. The crushing movable knife 513 includes a blade mounting seat 5131, which is installed on the cutter disc 512, and a blade body 5132 is installed on the blade mounting seat 5131. A plurality of adjusting bolts 5133 are installed below the blade body 5132. During actual operation, the installation position of the blade body 5132 can be fine-tuned by adjusting the bolt 5133 to better meet the installation requirements of the blade body 5132 during crushing.

[0033] The screen assembly 52 is installed obliquely below the blowing spindle 511. The screen assembly 52 includes an arc-shaped screen mounting frame 521. The screen 522 is mounted on the screen mounting frame 521. The front end of the screen mounting frame 521 is provided with a shaft sleeve 523. The rotating shaft 524 is installed in the shaft sleeve 523. The left and right ends of the rotating shaft 524 are respectively provided with a rotating shaft connecting rod 525. One end of the rotating shaft connecting rod 525 is connected to the screen adjusting cylinder 53. During actual operation, the rotating shaft connecting rod 525 can be driven by the screen adjusting cylinder 53 to drive the screen mounting frame 521 to move, thereby adjusting the distance between the screen 522 and the crushing moving knife 513 in the crushing spindle assembly 51, thereby making the spacing and pressure between the screen 522 and the crushing spindle assembly 51 adjustable, so as to adapt to the pressure and spacing requirements when crushing different materials. And when the screen 522 needs to be replaced, the screen assembly 52 and the crushing spindle assembly 51 can be quickly separated by the screen adjusting cylinder 53, thereby improving the efficiency of replacing the screen 522.

[0034] A fixed blade mechanism is mounted on one side of the crushing spindle assembly 51 within the crusher housing 2. The fixed blade mechanism includes a crushing fixed blade 73, with a fixed blade pressure plate mounted on the end of the crushing fixed blade 73. During operation, the high-speed rotation between the crushing fixed blade 73 and the crushing movable blade 513 mounted on the air blowing spindle 511 creates shearing action, enabling more efficient material crushing. Furthermore, the gap between the crushing fixed blade 73 and the crushing movable blade 513 can be adjusted using an adjusting bolt 5133 to better meet the crushing requirements of different materials.

[0035] A blowing mechanism 3 and a suction mechanism 4 are mounted outside the crusher housing 2. The blowing mechanism 3 includes a blowing blower 31 and a blowing pipe 32. The blowing blower 31 is mounted outside the crusher housing 1 and is connected to the crusher's bottom housing 21 via the blowing pipe 32. During operation, the blowing blower 31 delivers high-pressure gas through the blowing pipe 32, blowing material through the bottom housing 21 into the suction pipe 42 of the suction mechanism 4. The material is then sucked out by the suction mechanism 4. The suction mechanism 4 includes a suction blower 41 and a suction pipe 42. The suction blower 41 is connected to a discharge channel located at the bottom of the crusher housing 2 via the suction pipe 42. During operation, the suction blower 41 can quickly discharge screened material from the discharge channel via the suction pipe 42.

[0036] A control system 6 is also mounted outside the crusher housing 2. The control system 6 is connected to the blowing mechanism 3, suction mechanism 4, crushing mechanism 5, hydraulic station 8, and air compressor. During operation, the control system coordinates these three mechanisms.

[0037] This crusher with a central air blown main shaft has a simple structure and a reasonable design. It solves the problem of screen clogging during the crushing process, which affects production efficiency. The addition of a central air blow function can improve the material discharge rate. In actual operation, the material to be crushed enters the crushing chamber 23 provided on the crusher housing 2 through the feed bin 1. Then, the air blow main shaft 511 rotates at high speed under the drive of the main shaft drive device. The crushing movable blade 513 and the crushing fixed blade 73 mounted on the air blow main shaft 511 cooperate to crush the material in the crushing chamber 23. The crushed material is then screened through the screen assembly 52. ​​At the same time, the air compressor 9 ventilates the air blow main shaft 511. The central through hole 515 ejects high-pressure air from the air blow holes on the surface of the air blow main shaft 511 through the air blow holes 516. This creates an air pressure greater than 0.4 MPa in the crushing chamber 23, blowing air out of the crushing chamber 23. This allows the qualified material to pass through the air pressure and be ejected from the screen 522 more quickly, thereby increasing the discharge rate and improving production efficiency. Furthermore, it is easy to remove materials adhering to the blowing spindle 511 or the cutter disc 512, thereby improving the crushing quality.

[0038] The present invention improves the problem of frequent screen cleaning and replacement in crushers, reducing the workload of equipment maintenance. Furthermore, through the structural design of the screen assembly 52, the distance between the screen 522 and the movable crushing blade 513 in the crushing spindle assembly 51 can be adjusted via the screen adjustment cylinder 53. This allows for adjustable spacing and pressure between the screen 522 and the crushing spindle assembly 51 to accommodate the pressure and spacing requirements for crushing different materials. Furthermore, when the screen 522 needs to be replaced, the screen adjustment cylinder 53 can be used to quickly separate the screen assembly 52 from the crushing spindle assembly 51, improving the efficiency of screen 522 replacement.

[0039] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings. Therefore, any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A crusher with main shaft center blowing, comprising: A crusher box body, a feed bin is installed on the top of the crusher box body, and the characteristics are: a crushing mechanism is installed in the crusher box body, and the crushing mechanism includes a crushing spindle assembly and a screen assembly, and the crushing spindle assembly includes a blowing spindle installed in the middle of the crusher box body along the horizontal direction, and one end of the blowing spindle is connected to the spindle drive device, and rotary joints are installed at both ends of the blowing spindle, and the two rotary joints are connected through a central through hole, and a plurality of groups of blowing holes are provided on the surface of the blowing spindle, and the central through hole and the blowing holes on the surface of the blowing spindle are connected through blowing sub-holes, and a plurality of groups of parallel and spaced cutter discs are installed on the blowing spindle along the horizontal direction, and the cutter discs are installed between them. There are multiple groups of crushing knives distributed in a circular array with the center of the blowing spindle as the center of the circle, the screen assembly is installed under the blowing spindle, the screen assembly includes an arc-shaped screen mounting frame, the screen is installed on the screen mounting frame, the front end of the screen mounting frame is provided with a shaft sleeve, the rotating shaft is installed in the shaft sleeve, the left and right ends of the rotating shaft are installed with a rotating shaft connecting rod, one end of the rotating shaft connecting rod is connected to the screen adjusting cylinder, the outside of the crusher case is installed with a blowing mechanism, a suction mechanism, an air compressor and a hydraulic station, the air compressor is connected to the rotary joint on the blowing spindle, the blowing mechanism and the suction mechanism are connected to the crusher case, and the hydraulic station is connected to the screen adjusting cylinder.

2. The crusher with main shaft center blowing according to claim 1, characterized in that: The crushing movable knife includes a blade mounting seat, the blade mounting seat is mounted on the cutter disc, the blade body is mounted on the blade mounting seat, and a plurality of adjusting bolts are installed below the blade body.

3. The crusher with main shaft center blowing according to claim 1, characterized in that: A fixed knife mechanism is installed on one side of the crushing main shaft assembly in the crusher housing. The fixed knife mechanism includes a crushing fixed knife, and a fixed knife pressure plate is installed on the end side of the crushing fixed knife.

4. The crusher with main shaft center blowing according to claim 1, characterized in that: The crusher box includes a bottom box, a lower box and an upper box. The lower box is installed on the bottom box, the upper box is installed on the lower box, and the rear ends of the upper and lower boxes are hinged. The fixed ends of the upper and lower box opening and closing cylinders are fixed on the lower box, and the telescopic ends of the upper and lower box opening and closing cylinders are connected to the front end of the upper box through the upper box connecting rod. The upper and lower boxes are closed to form a crushing chamber, and the crushing spindle assembly and the screen assembly are both installed in the crushing chamber.

5. The crusher with main shaft center blowing according to claim 1, characterized in that: The blowing mechanism includes a blowing blower and a blowing pipeline. The blowing blower is installed outside the crusher box, and the blowing blower is connected to the crushing chamber through the blowing pipeline.

6. The crusher with main shaft center blowing according to claim 1, characterized in that: The material suction mechanism includes a material suction blower and a material suction pipe, and the material suction blower is connected to a discharge channel arranged at the bottom of the crusher box through the material suction pipe.

7. The crusher with main shaft center blowing according to claim 1, characterized in that: The spindle drive device includes a spindle drive motor and a pulley. The pulley is installed on the end side of the blowing spindle. The spindle drive motor is connected to the pulley installed on the blowing spindle through a belt.

8. The crusher with main shaft center blowing according to claim 3, characterized in that: A control system is also installed on the outside of the crusher box, and the control system is respectively connected to the blowing mechanism, the suction mechanism, the crushing mechanism, the hydraulic station, and the air compressor.

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