Reciprocating double-channel particle size adjustable roller grinding and crushing device

Abstract

This invention discloses a reciprocating dual-channel adjustable-size roller grinding and crushing device. The rotor mechanism is fixed to the structural frame via a main shaft and bearing seats. The upper part of the structural frame has two feed inlets, and the lower part has two discharge outlets. The structural frame is divided into two independent crushing channels by the rotor mechanism and the crushing and grinding plate mechanism. The rotor mechanism is connected to a crank-rocker transmission mechanism, which achieves the reciprocating motion of the rotor through stable power transmission and motion adjustment, thereby extruding and grinding the material to obtain qualified products. This invention achieves material crushing through extrusion and grinding; simultaneously, by adjusting the distance between the crushing and grinding plates, products with different particle sizes can be produced; and by setting up dual feed inlets and dual discharge outlets, independent dual crushing channels are formed. This achieves multiple uses in one machine, reducing equipment investment, factory floor space, and energy consumption, simplifying the process, and saving operating and maintenance costs.

Description

Technical Field

[0001] This invention relates to crushing devices, and more particularly to a reciprocating dual-channel adjustable particle size roller grinding and crushing device, a reciprocating crushing and grinding equipment with dual-channel operation and stepless particle size adjustment function. Background Technology

[0002] Crushers are key equipment in the mineral and building materials production industries for the medium- and fine crushing of medium-hard and brittle materials. Existing crushers primarily crush materials through the impact or compression of rotating rotors, and can only crush one type of material at a time. When the production process needs to process different raw materials or intermediate products simultaneously, multiple independent crushers are required. This operating mode not only increases equipment investment, plant space, and energy consumption, but also complicates the process and leads to high operating and maintenance costs.

[0003] Therefore, it is necessary to develop new crushing devices to overcome the above problems. Summary of the Invention

[0004] Purpose of the invention: To address the shortcomings and defects of existing technologies, this invention provides a reciprocating dual-channel adjustable-size roller grinding and crushing device. This device crushes materials through compression and grinding; simultaneously, by adjusting the distance between the crushing and grinding plates, it produces products with particles of different sizes; and by setting up dual feed inlets and dual discharge outlets, it forms independent dual crushing channels, enabling the equipment to process two different materials simultaneously. This achieves multi-purpose functionality, reduces equipment investment, factory floor space, and energy consumption, simplifies the process, and saves on operating and maintenance costs.

[0005] Technical Solution: The present invention provides a reciprocating dual-channel adjustable particle size roller grinding and crushing device, characterized in that it includes a crushing and grinding plate mechanism, a rotor mechanism, a crank-rocker transmission mechanism, and a structural frame; the rotor mechanism is fixed to the structural frame via a main shaft and bearing seats; the upper part of the structural frame has two feed inlets, and the lower part of the structural frame has two discharge outlets; the structural frame is divided into two independent crushing channels by the rotor mechanism and the crushing and grinding plate mechanism; the rotor mechanism is connected to the crank-rocker transmission mechanism, and the rotor mechanism achieves reciprocating motion of the rotor through the stable power transmission and motion adjustment of the crank-rocker transmission mechanism, thereby extruding and grinding the material to obtain a qualified product.

[0006] The crushing and grinding plate mechanism includes a hanging shaft, a grinding plate body, an adjusting screw, a rubber spring, a spring, a spring seat, and a spring spindle.

[0007] The grinding plate is connected to a hanging shaft at one end, and to an adjusting screw at the back. The adjusting screw is connected to a rubber spring at the other end. The adjusting screw passes through a spring seat, which has a spring spindle and a spring at its upper end.

[0008] The rotor mechanism includes a roller body, a main shaft, special roller teeth, a bearing housing, and an expansion sleeve.

[0009] The main shaft is connected to the roller body at both ends by expansion sleeves. The roller body is provided with special roller teeth, and the main shaft is provided with bearing seats at both ends.

[0010] The crank-rocker transmission mechanism includes a rocker shaft, a connecting rod, an end face cam, a transmission bearing housing, a drive reduction motor, and an output shaft.

[0011] The end face cam has a connecting rod at its upper end, and a rocking shaft at each end of the connecting rod; the right end of the end face cam has a transmission bearing seat, and the right end of the transmission bearing seat has a drive reduction motor, the left end of the drive reduction motor being connected to the end face cam via an output shaft.

[0012] The structural frame includes a shell, an inlet, and an outlet.

[0013] The structural frame has two feed inlets at the top, a housing at the bottom, and two discharge outlets at the bottom.

[0014] During operation, two different materials enter the crushing chamber from two independent feed inlets and fall onto the corresponding crushing and grinding plates and rotor mechanism. At the same time, the crank rocker transmission mechanism drives the rotor mechanism to rotate back and forth through the connecting rod. The materials are subjected to impact, compression and grinding between the crushing and grinding plates and the rollers to complete the crushing. The two qualified crushed materials are discharged independently through the two corresponding discharge ports below.

[0015] When it is necessary to adjust the particle size of the product, the compression of the rubber spring is changed by turning the adjusting screw, thereby precisely adjusting the initial working position of the grinding plate and achieving continuous and stable control of the crushed particle size.

[0016] When an unbreakable hard foreign object enters, the impact force forces the grinding plate to compress the rubber spring and swing backward to allow the foreign object to pass through, thus achieving overload protection. After the foreign object is discharged, the grinding plate automatically returns to the preset position under the restoring force of the spring assembly.

[0017] In addition, the rotational motion of the main shaft drives the connecting rod through the end face cam, which in turn drives the rocker shaft to reciprocate. The moving parts in this oscillating linkage device dynamically assist and adjust the crushing process, making the entire crushing operation more stable and efficient.

[0018] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: By setting up dual feed inlets and dual discharge outlets, this invention forms independent dual crushing channels, enabling the equipment to process two different materials simultaneously, greatly improving production efficiency and equipment utilization. This invention uses end-face cams to convert the rotation of the main shaft into a specific motion trajectory at the end of the connecting rod, converting the rotational motion of the main shaft into the reciprocating rotation of the rocker shaft. The rollers, as vulnerable working parts that directly perform crushing, can be removed, rotated at a certain angle, and reinstalled as needed, extending their service life. This invention uses an elastic buffer adjustment component (or hydraulic cylinder) composed of adjusting screws and springs to achieve convenient and precise adjustment of the gap between the crushing and grinding plates, and can provide effective buffer protection when encountering impacts from uncrushable objects, significantly improving the equipment's adaptability to different material conditions and operational reliability, and reducing the risk of core component failure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the crushing and grinding plate mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the roller structure of the rotor mechanism of the present invention. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the roller structure of the rotor mechanism of the present invention. Figure 2 ;

[0024] In the figure, 1 is the crushing and grinding plate mechanism; 101 is the hanging shaft; 102 is the grinding plate body; 103 is the adjusting screw; 104 is the rubber spring; 105 is the spring; 106 is the spring seat; 107 is the spring spindle; 2 is the rotor mechanism; 201 is the roller body; 202 is the main shaft; 203 is the special roller teeth; 204 is the bearing seat; 205 is the expansion sleeve; 3 is the crank rocker transmission mechanism; 301 is the rocking shaft; 302 is the connecting rod; 303 is the end face cam; 304 is the transmission bearing seat; 305 is the drive geared motor; 306 is the output shaft; 4 is the structural frame; 401 is the shell; 402 is the feed port; 403 is the discharge port. Detailed Implementation

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] This invention relates to a reciprocating dual-channel adjustable-size roller grinding and crushing device. The rotor mechanism consists of specially shaped rollers fixed to a structural frame via a main shaft and bearing seats. The structural frame has two feed inlets at the top and two discharge outlets at the bottom. The structural frame is divided into two independent crushing channels by the rotor mechanism and the crushing and grinding plate mechanism, allowing for simultaneous independent crushing of two types of materials. The rotor mechanism is connected to a crank-rocker transmission mechanism. The rotor mechanism achieves reciprocating motion through stable power transmission and motion adjustment via the crank-rocker transmission mechanism, extruding and grinding the material to obtain a qualified product. The crushing and grinding plate mechanism is located on both sides of the rotor mechanism. The distance between the crushing and grinding plate mechanism and the rotor mechanism can be precisely adjusted by adjusting screws, achieving stepless and continuous adjustment of the crushed particle size. The crank-rocker transmission mechanism includes a crank-rocker component consisting of a rocking shaft, connecting rod, and end face cam, used for stable motion transmission and adjustment. This invention can independently crush two types of materials, effectively improving equipment production flexibility and operating efficiency, providing precise particle size adjustment, and has a wide range of applications.

[0027] The rotor mechanism includes a main shaft fixed at the center of the roller body. Expansion sleeves at both ends of the main shaft secure the shaft to the roller body, reliably transmitting the rotational power provided by the motor to the entire rotor mechanism. This provides core kinetic energy for the crushing operation and ensures operational stability. The main shaft, as the core power transmission and load-bearing component, is connected at one end to the power output of the drive, crank-rocker transmission mechanism. The roller body, as the main inertial drive component, reciprocates under the drive of the main shaft. Special roller teeth are provided on the roller body surface, and self-aligning roller bearings are located at both ends of the main shaft. The toothed structure of the rollers is used for crushing or grinding materials. After wear, the roller teeth can be welded back together and reused, extending their service life. The self-aligning roller bearings, as the main support and self-aligning elements, support the smooth, high-speed rotation of the main shaft and withstand the radial crushing load from the material, thus ensuring the smooth and reliable operation of the entire rotor mechanism.

[0028] The crank-rocker transmission mechanism features an end-face cam. A connecting rod is mounted on the upper end of the end-face cam, and rocker shafts are located at both ends of the connecting rod. As a component of the crank, the end-face cam converts the rotation of the main shaft into a specific motion trajectory at the end of the connecting rod, thus converting the rotational motion of the main shaft into the reciprocating oscillation of the rotor. A self-aligning roller bearing is located at the right end of the end-face cam, and a geared motor is located at the right end of the self-aligning roller bearing. An output shaft is located at the left end of the geared motor. The self-aligning roller bearing supports the end-face cam and bears the radial load and axial thrust it generates. The geared motor serves as the core drive source, providing controllable speed and torque power input through the output shaft.

[0029] The structural frame features two feed inlets and two discharge outlets at the bottom. This dual-feed design creates two independent material supply channels, allowing the equipment to simultaneously receive and process two different materials without interference, significantly improving equipment utilization and production line flexibility. A shell is located below the feed inlets, serving as the main structure and protective enclosure for housing and supporting all internal mechanisms, ensuring the crushing process is carried out safely within a confined space. The two discharge outlets at the bottom of the shell correspond to the dual feed inlets, ensuring that the two materials are discharged independently after crushing, facilitating subsequent separate collection or processing, thus achieving dual-channel operation.

[0030] Example:

[0031] As shown in the figure, the reciprocating dual-channel adjustable particle size roller grinding and crushing device of this embodiment includes a crushing and grinding plate mechanism 1, a rotor mechanism 2, a crank rocker transmission mechanism 3, and a structural frame 4; the rotor mechanism 2 is fixed on the structural frame 4 through a main shaft 202 and a bearing seat 204; the upper part of the structural frame 4 is provided with two feed ports 402, and the lower part of the structural frame 4 is provided with two discharge ports 403. The structural frame 4 is divided into two independent crushing channels by the rotor mechanism 2 and the crushing and grinding plate mechanism 1. The crushing and grinding plate mechanism 1 includes a hanging shaft 101, a grinding plate body 102, an adjusting screw 103, a rubber spring 104, a spring 105, a spring seat 106, and a spring spindle 107. One end of the grinding plate body 102 is connected to the hanging shaft 101, and the back of the grinding plate body 102 is connected to one end of the adjusting screw 103. The other end of the adjusting screw 103 is connected to the rubber spring 104. The adjusting screw 103 passes through the spring seat 106, on which the spring spindle 107 is mounted, and at the upper end of the spring seat 106 is a spring 105. The rotor mechanism 2 is connected to the crank-rocker transmission mechanism 3. The rotor mechanism 2 achieves reciprocating motion of the rotor through the stable power transmission and motion adjustment of the crank-rocker transmission mechanism 3, thereby extruding and grinding the material to obtain a qualified product.

[0032] The rotor mechanism 2 includes a main shaft 202, which is fixed at the center of the roller body 201. Expansion sleeves 205 are provided at both ends of the main shaft 202. Special roller teeth 203 are provided around the roller body 201. First self-aligning roller bearings, i.e., bearing seats 204, are provided at both ends of the main shaft 202. The main shaft 202, as the core power transmission and load-bearing component, has one end connected to the power output end of the drive and crank-rocker transmission mechanism 3. The roller body 201, as the main inertial drive component, rotates at high speed under the drive of the main shaft 202. The expansion sleeves 205 serve as locking elements to secure the roller body 201 and the main shaft 201. The fastening of 02 ensures that the rotational power provided by the drive geared motor 305 is reliably transmitted to the entire rotor mechanism 2, providing core kinetic energy for crushing operations and ensuring operational stability. The tooth structure of the special roller teeth 203 is used for crushing and grinding materials. As a vulnerable working part that directly performs extrusion crushing, it can be removed, rotated at a certain angle, and reinstalled according to the usage conditions to extend its service life. The bearing seat 204 serves as the main support and self-aligning element, supporting the smooth and high-speed rotation of the main shaft 202 and bearing the radial crushing load from the material, thereby ensuring the smooth and reliable operation of the entire rotor mechanism 2.

[0033] The crank-rocker transmission device is equipped with an end face cam 303. A connecting rod 302 is provided at the upper end of the end face cam 303, and rocker shafts 301 are provided at both ends of the connecting rod 302. A second self-aligning roller bearing, i.e., a transmission bearing housing 304, is provided at the right end of the end face cam 303. An output shaft 306 is provided at the left end of the drive reduction motor 305, and the drive reduction motor 305 is provided at the right end of the transmission bearing housing 304. The frame structure 4 is provided with two feed ports 402, and two discharge ports 403 are provided at the lower part of the feed ports 402. The transmission bearing housing 304 is used to support the end face cam 303 and bear the radial load and axial thrust generated by it. The drive reduction motor 305 serves as the core drive. The power source provides controllable speed and torque power input through the output shaft 306. The dual feed port 402 design forms two independent material supply channels, enabling the equipment to simultaneously receive and process two different materials without interference, greatly improving equipment utilization and production line flexibility. The frame structure 4 serves as the main structure and protective shell of the equipment, used to accommodate and support all internal mechanisms and ensure that the crushing process is carried out safely in a closed space. The lower part of the shell 401 is provided with two discharge ports 403, which correspond to the dual feed ports 402, ensuring that the two materials can be discharged independently after crushing, facilitating subsequent separate collection or processing, and realizing dual-channel operation.

[0034] During operation, two different materials enter the crushing chamber from two independent feed ports 402 and fall onto the corresponding crushing and grinding plates 102 and rotor mechanism 2. At the same time, the crank rocker transmission mechanism 3 drives the rotor mechanism 2 to rotate reciprocally through the connecting rod 302. The materials are subjected to impact, compression and grinding between the crushing and grinding plates 102 and the roller 201 to complete the crushing. The two qualified crushed materials are discharged independently through the two corresponding discharge ports 403 below.

[0035] When the particle size needs to be adjusted, the compression of the rubber springs 104 and 105 is changed by turning the adjusting screw 103, thereby precisely adjusting the initial working position of the grinding plate 102 and achieving continuous and stable control of the crushed particle size. When an uncrushable hard foreign object enters, the impact force forces the grinding plate 102 to compress the rubber springs 104 and 105 and swing backward to allow the foreign object to pass through, thus achieving overload protection. After the foreign object is discharged, the grinding plate 102 automatically returns to the preset position under the restoring force of the spring assembly. In addition, the rotational motion of the main shaft 202 drives the connecting rod 302 through the end face cam 303 on it, which in turn drives the rocker shaft 301 to reciprocate. This swinging linkage of the moving parts in the equipment provides dynamic auxiliary adjustment for the crushing process, making the entire crushing operation more stable and efficient.

[0036] This invention creates independent dual crushing channels by setting up dual feed inlets and dual discharge outlets, enabling the equipment to process two different materials simultaneously, greatly improving production efficiency and equipment utilization. The invention uses end-face cams to convert the rotation of the main shaft into a specific motion trajectory at the end of the connecting rod, transforming the rotational motion of the main shaft into the reciprocating rotation of the rocker shaft. The rollers, as vulnerable working parts that directly perform crushing, can be removed, rotated at a certain angle, and reinstalled as needed, extending their service life. This invention utilizes an elastic buffer adjustment component (or hydraulic cylinder) composed of adjusting screws and springs to achieve convenient and precise adjustment of the gap between the crushing and grinding plates, and provides effective buffer protection when encountering impacts from uncrushable objects. This significantly improves the equipment's adaptability to different material conditions and operational reliability, reducing the risk of core component failure.

Claims

1. A reciprocating dual-channel adjustable particle size roller grinding and crushing device, characterized in that: The system includes a crushing and grinding plate mechanism (1), a rotor mechanism (2), a crank-rocker transmission mechanism (3), and a structural frame (4). The rotor mechanism (2) is fixed to the structural frame (4) via a main shaft (202) and a bearing seat (204). The upper part of the structural frame (4) has two feed inlets (402), and the lower part of the structural frame (4) has two discharge outlets (403). The structural frame (4) is divided into two independent crushing channels by the rotor mechanism (2) and the crushing and grinding plate mechanism (1). The rotor mechanism (2) is connected to the crank-rocker transmission mechanism (3). The rotor mechanism (2) achieves the reciprocating motion of the rotor through the stable power transmission and motion adjustment of the crank-rocker transmission mechanism (3) to squeeze and grind the material, thereby obtaining a qualified product.

2. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 1, characterized in that: The crushing and grinding plate mechanism (1) includes a hanging shaft (101), a grinding plate body (102), an adjusting screw (103), a rubber spring (104), a spring (105), a spring seat (106), and a spring spindle (107).

3. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 2, characterized in that: One end of the grinding plate body (102) is connected to the hanging shaft (101), and the back of the grinding plate body (102) is connected to one end of the adjusting screw (103). The other end of the adjusting screw (103) is connected to the rubber spring (104). The adjusting screw (103) passes through the spring seat (106), and the spring seat (106) is provided with a spring spindle (107). The upper end of the spring seat (106) is provided with a spring (105).

4. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 1, characterized in that: The rotor mechanism (2) includes a roller body (201), a main shaft (202), special roller teeth (203), a bearing seat (204), and an expansion sleeve (205).

5. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 4, characterized in that: The main shaft (202) is connected to the roller body (201) at both ends by expansion sleeves (205). The roller body (201) is provided with special roller teeth (203), and the main shaft (202) is provided with bearing seats (204) at both ends.

6. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 1, characterized in that: The crank rocker transmission mechanism (3) includes a rocker shaft (301), a connecting rod (302), an end face cam (303), a transmission bearing seat (304), a drive reduction motor (305), and an output shaft (306).

7. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 6, characterized in that: The end face cam (303) is provided with a connecting rod (302) at its upper end, and rocking shafts (301) are provided at both ends of the connecting rod (302); the end face cam (303) is provided with a transmission bearing seat (304) at its right end, and a drive reduction motor (305) is provided at the right end of the transmission bearing seat (304); the left end of the drive reduction motor (305) is connected to the end face cam (303) through an output shaft (306).

8. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 1, characterized in that: The structural frame (4) includes a shell (401), a feed inlet (402) and a discharge outlet (403).

9. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to claim 8, characterized in that: The structural frame (4) has two feed inlets (402) on the upper part, a shell (401) on the lower part of the feed inlets (402), and two discharge outlets (403) on the lower part of the shell (401).

10. The reciprocating dual-channel adjustable particle size roller grinding and crushing device according to any one of claims 1-9, characterized in that: During operation, two different materials enter the crushing chamber from two independent feed ports (402) and fall onto the corresponding crushing and grinding plates (102) and rotor mechanism (2). At the same time, the crank rocker transmission mechanism (3) drives the rotor mechanism (2) to rotate back and forth through the connecting rod (302). The materials are subjected to impact, compression and grinding between the crushing and grinding plates (102) and the roller (201) to complete the crushing. The two qualified crushed materials are discharged independently through the two corresponding discharge ports (403) below. When it is necessary to adjust the particle size of the product, the compression of the rubber spring (104) and the spring (105) is changed by turning the adjusting screw (103), thereby precisely adjusting the initial working position of the grinding plate (102) and realizing continuous and stable control of the crushed particle size; When an unbreakable hard foreign object enters, the impact force forces the grinding plate body (102) to compress the rubber spring (104) and spring (105) and swing backward to allow the foreign object to pass through, thereby achieving overload protection; after the foreign object is discharged, under the restoring force of the spring assembly, the grinding plate body (102) automatically returns to the preset position. In addition, the rotational motion of the main shaft (202) drives the connecting rod (302) through the end face cam (303) on it, which in turn drives the rocking shaft (301) to reciprocate. This oscillating linkage device's moving parts dynamically assist in the adjustment of the crushing process, making the entire crushing operation more stable and efficient.

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