Low-particle-size broken stone processing and shaping device

Abstract

The invention belongs to the technical field of low-particle-size broken stone processing and shaping, and particularly relates to a low-particle-size broken stone processing and shaping device which comprises a shell, a discharging hopper is arranged in an upper end opening of the shell, the lower end of the discharging hopper is fixedly sleeved with a fixing disc, three sets of rotating blocks are distributed below the fixing disc at equal angles, and the three sets of rotating blocks are all fixedly installed on a rotating disc. The upper ends of the rotating blocks are attached to the lower end face of the fixing disc, a discharging area is formed among the three sets of rotating blocks, the lower end opening of the discharging hopper is located over the discharging area, and three sets of discharging areas are distributed around the discharging area at equal angles. And the rotating disc is driven to rotate together with the three sets of rotating blocks to generate centrifugal force, so that the broken stones are uniformly thrown to the periphery in the shell, the broken stones can be impacted by the inner wall of the shell, the broken stones entering the shell are impacted more uniformly, and the shaping efficiency of the broken stones is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of low-diameter crushed stone processing and shaping, in particular to a low-diameter crushed stone processing and shaping device. Background Art

[0002] Low-size stone crusher and shaper is a kind of equipment specially used for fine crushing and shaping of low-size stone. It is widely used in construction, road, railway, bridge and other industries. This machine combines the two functions of crushing and shaping. It can crush the original stone into the required particle size and improve the particle shape and appearance of the stone through the shaping process. The working principle of the stone crusher and shaper is to use centrifugal force to make the material impact and rub, so as to obtain low-size and cubic stone.

[0003] The patent with publication number CN113198604A discloses a machine-made sand shaping machine, which includes a bracket and a cylinder installed on the bracket, an annular impact plate is installed inside the cylinder, and a spiral groove I is provided in the middle of the annular impact plate, a main shaft is rotatably installed in the cylinder, a plurality of groups of rotating blades are distributed on the main shaft, and an annular roller plate is provided below the rotating blades, and the annular roller plate is fixedly sleeved on the main shaft. In this scheme, the rotating blades and the annular roller plate are driven by the main shaft to rotate together, so that the crushed stone entering the cylinder is moved by the high-speed rotating blades, and the moved crushed stone is thrown onto the annular impact plate to produce a collision, and the crushed stone split by the collision falls between the annular impact plate and the annular roller plate, and the rotating annular roller plate moves the crushed stone again, so that the crushed stone is hit and rubbed, thereby realizing the shaping of the crushed stone.

[0004] In the above scheme, before adding the crushed stones into the cylinder, the multiple groups of rotating blades are in a high-speed rotating state. When a large amount of crushed stones rush into the cylinder together, the multiple groups of rotating blades receive the crushed stones unevenly, resulting in a certain rotating blade being hit by the crushed stones with great force, thereby reducing the service life of the rotating blade. Secondly, the rotating blades cannot disperse the crushed stones that rush in together in a short time, resulting in uneven number of collisions and force on the crushed stones, thereby affecting the shaping efficiency of the crushed stones. For this reason, the present invention provides a low-particle size crushed stone processing and shaping device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a low-size crushed stone processing and shaping device described in the present invention comprises a shell, a lower hopper is arranged in the upper port of the shell, a fixed disk is fixedly mounted on the lower end of the lower hopper, three groups of rotating blocks are distributed at equal angles below the fixed disk, the three groups of rotating blocks are fixedly mounted on the rotating disk, the lower end surface of the rotating disk is fixedly connected to the main shaft, the main shaft is rotatably mounted on the support frame, the support frame is fixedly mounted in the lower port of the shell, the upper end of the rotating block is in contact with the lower end surface of the fixed disk, a material drop zone is formed between the three groups of rotating blocks, the lower port of the lower hopper is located directly above the material drop zone, and three groups of discharge zones are distributed at equal angles around the material drop zone;

[0007] By driving the rotating disk together with the three groups of rotating blocks to rotate and generate centrifugal force, the crushed stones are evenly scattered around the shell, so that the crushed stones can be impacted by the inner wall of the shell, and the crushed stones entering the shell are impacted more evenly, thereby improving the shaping efficiency of the crushed stones. Secondly, the crushed stones fall directly into the dropping area, avoiding the rotating blocks from being directly impacted by the crushed stones, thereby increasing the service life of the rotating blocks.

[0008] Preferably, the fixed plate includes a plate body, the plate body is fixedly sleeved at the lower end of the lower hopper, three groups of guide plates are distributed at equal angles on the lower end surface of the plate body, the lower end surface of the guide plate is fixedly connected to a rotating block, a receiving block is fixedly connected to the upper end surface of the guide plate, three groups of connecting rods, one end of the connecting rod is hinged to the receiving block, and the other end of the connecting rod is hinged to a movable plate, the movable plate is sleeved on the lower hopper, a lifting ring sleeved on the movable plate is rotatably provided, a hydraulic cylinder is used to drive the lifting ring, a fixed plate is fixedly welded on the outer ring of the lower hopper, the hydraulic cylinder is fixedly mounted on the fixed plate, the lower end of the hydraulic cylinder is fixedly connected to the lifting ring, three groups of rectangular grooves are opened at equal angles on the upper end surface of the plate body, the receiving block is slidably connected to the rectangular groove, three groups of guide grooves are opened at equal angles on the lower end surface of the plate body, and the guide plate is movably plugged into the guide groove;

[0009] The spacing between the three sets of guide plates is pulled to the maximum. Under the action of centrifugal force, the larger stones that cause jams will pass through the discharge area smoothly, thereby achieving the processing of jams between the three sets of rotating blocks. The fixed plate structure is simple and easy to operate, which improves the efficiency of processing jams.

[0010] Preferably, a movable tube is inserted at one end of the rotating block, a roller is rotatably installed on one end of the movable tube, a rectangular shaft is movably inserted into the movable tube, the rectangular shaft is fixedly installed in the rotating block, a sliding sleeve is movably sleeved on the rectangular shaft, a first spring is sleeved on the rectangular shaft, the first spring is located between the sliding sleeve and the movable tube, a hinge shaft, the hinge shaft is fixedly installed in the rotating block, two sets of swing rods, the swing rods are hinged to the hinge shafts, the upper end of the swing rods is close to the sliding sleeve, a rectangular through hole is opened at one end of the rotating block, the movable tube is movably inserted into the rectangular through hole, and the rotating block is Two groups of detection plates are symmetrically arranged, two groups of guide pillars are fixedly mounted on the detection plates, a guide sleeve is slidably connected to the guide pillars, the guide sleeve is fixedly mounted in the rotating block, a second spring is sleeved on the guide pillars, a fixed ring is fixedly mounted at the lower end of the lower hopper, an extrusion sensor is embedded and mounted on the outer ring of the fixed ring, the roller is close to the outer ring of the fixed ring, two groups of movable openings are symmetrically opened on the inner side of the rotating block, the detection plate is plugged into the movable opening, a receiving shaft is fixedly connected to one side of the rotating block, a receiving groove is opened at the lower end of the swing arm, and the end of the receiving shaft is located in the receiving groove;

[0011] When the roller is squeezed by the end of the squeeze sensor, the first spring will be compressed for the second time, which will increase the rebound force of the first spring. The squeeze sensor detects that the squeezing force of the roller will increase. The squeeze sensor transmits the abnormal signal to the back-end processor of the device. The back-end processor controls the hydraulic cylinder to solve the jam problem in time and quickly, thereby ensuring the efficiency and quality of gravel shaping.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. By driving the rotating disk together with the three groups of rotating blocks to rotate and generate centrifugal force, the crushed stones are evenly scattered around the shell, so that the crushed stones can be impacted by the inner wall of the shell, and the crushed stones entering the shell are impacted more evenly, thereby improving the shaping efficiency of the crushed stones. Secondly, the crushed stones fall directly into the dropping area, avoiding the rotating blocks from being directly impacted by the crushed stones, thereby increasing the service life of the rotating blocks.

[0014] 2. When a jam occurs between the three groups of rotating blocks, the discharge of gravel into the lower hopper is stopped, and the three groups of rotating blocks continue to rotate. At the same time, the rotating blocks drive the disc body and the receiving blocks to rotate together through the guide plates. The rotating disc body drives the connecting rod and the movable disc to rotate together through the receiving blocks. Then the hydraulic cylinder is started. The hydraulic cylinder pushes the lifting ring and the movable disc to move downward. The movable disc will slide along the lower hopper. At the same time, the movable disc presses down the three groups of connecting rods, so that the three groups of connecting rods push the three groups of receiving blocks to slide along the corresponding rectangular grooves respectively. The sliding receiving blocks drive the guide plates to slide along the guide grooves, and the rotating blocks move with the guide plates, so that the spacing between the three groups of guide plates is pulled to the maximum. Under the action of centrifugal force, the larger stones that cause the jam will pass through the discharge area smoothly, thereby realizing the processing of the jam between the three groups of rotating blocks. The fixed disc structure is simple and easy to operate, which improves the efficiency of processing the jam problem.

[0015] 3. When the crushed stone is stuck in the discharge area, the crushed stone will be blocked in a relatively narrow area in the discharge area. Since the detection plate on the rotating block is located in a relatively narrow area in the discharge area, under the action of centrifugal force, the blocked crushed stone will generate a force to move from the relatively narrow area in the discharge area to the wide area, so that the detection plate is squeezed by the blocked crushed stone, and the squeezing causes the detection plate to retreat along the movable opening. At the same time, the detection plate drives the guide column to slide along the guide sleeve and compresses the second spring. As the detection plate moves, the detection plate drives the receiving shaft to squeeze the groove wall of the receiving groove, so that the swing arm deflects toward the axis of rotation of the rotating block. At the same time, the upper end of the swing arm squeezes the sliding sleeve, so that the sliding sleeve slides along the rectangular axis toward the movable tube direction and compresses the first spring. Therefore, when the roller is squeezed by the end of the squeezing sensor, the first spring will be compressed twice, so that the rebound force of the first spring becomes larger. The squeezing sensor detects that the squeezing force of the roller will become larger. The squeezing sensor transmits the abnormal signal to the back-end processor of the device. The back-end processor controls the hydraulic cylinder to solve the jamming problem in a timely and rapid manner, thereby ensuring the efficiency and quality of the crushed stone shaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view of the structure of the present invention.

[0019] Figure 3 It is a schematic diagram of another viewing angle of the cross-section of the housing, the rotating block and the rotating disk combination of the present invention.

[0020] Figure 4 It is a schematic diagram of a cross-sectional lower hopper, a cross-sectional fixed plate, and a rotating block assembly of the present invention.

[0021] Figure 5 It is a schematic diagram of the assembly of the disc body, the guide plate and the receiving block of the present invention.

[0022] Figure 6 It is a schematic diagram of the combination of the lower hopper, guide plate, receiving block and rotating block of the present invention.

[0023] Figure 7 It is a schematic diagram of the cross-sectional guide plate, the cross-sectional receiving block, the fixing ring and the extrusion sensor assembly of the present invention.

[0024] Figure 8 The present invention is a schematic diagram of the combination of a movable tube, a rectangular shaft, a sliding sleeve, a rocker arm, and a cross-sectional rotating block.

[0025] In the figure: 1, shell; 2, lower hopper; 21, fixed plate; 22, fixed ring; 23, extrusion sensor; 3, fixed plate; 4, rotating block; 41, material dropping area; 42, material discharging area; 43, movable opening; 5, rotating plate; 6, main shaft; 7, support frame; 301, plate body; 3011, rectangular groove; 3021, guide groove; 303, guide plate; 304, receiving block; 305, connecting rod; 306, Movable disk; 307, lifting ring; 308, hydraulic cylinder; 3041, movable tube; 411, rectangular through hole; 3042, roller; 3043, rectangular shaft; 3044, sliding sleeve; 3045, first spring; 3046, hinge shaft; 3047, rocker arm; 471, receiving groove; 401, detection plate; 4011, receiving shaft; 402, guide column; 403, guide sleeve; 404, second spring. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] Embodiment 1

[0028] like Figures 1 to 3 As shown, a low-particle-size crushed stone processing and shaping device described in an embodiment of the present invention comprises a shell 1, a lower hopper 2 is arranged in the upper port of the shell 1, a fixed disk 3 is fixedly mounted on the lower end of the lower hopper 2, three groups of rotating blocks 4 are distributed at equal angles below the fixed disk 3, the three groups of rotating blocks 4 are all fixedly mounted on the rotating disk 5, the lower end surface of the rotating disk 5 is fixedly connected to the main shaft 6, the main shaft 6 is rotatably mounted on the support frame 7, the support frame 7 is fixedly mounted in the lower port of the shell 1, the upper end of the rotating block 4 is in contact with the lower end surface of the fixed disk 3, a material drop area 41 is formed between the three groups of rotating blocks 4, the lower port of the lower hopper 2 is located directly above the material drop area 41, and three groups of discharge areas 42 are distributed at equal angles around the material drop area 41.

[0029] Specifically, the discharge area 42 is narrow inside and wide outside. When the crushed stone needs to be shaped, the main shaft 6 is first driven by the motor to rotate, and the main shaft 6 drives the rotating disk 5 to rotate at a high speed together with the three groups of rotating blocks 4, and then the crushed stone is discharged into the lower hopper 2. The crushed stone falls into the drop area 41 between the three groups of rotating blocks 4 along the inner cavity of the lower hopper 2. At this time, the crushed stone falling into the drop area 41 will rotate with the three groups of rotating blocks 4. The rotation will generate centrifugal force, so that the crushed stone in the drop area 41 will fly around the shell 1 through the three groups of discharge areas 42, and the scattered crushed stone will hit the inner wall of the shell 1, and the impact will cause the crushed stone to break. At the same time, some of the crushed stone will be The rebounded gravel will hit the gravel scattered from the discharge area 42 head-on, so that the gravel is impacted and shaped multiple times, and the shaped gravel is discharged through the lower port of the shell 1, thereby realizing the shaping of the gravel. Compared with the prior art, the centrifugal force is generated by driving the rotating disk 5 together with the three groups of rotating blocks 4 to rotate, so that the gravel is evenly scattered around the shell 1, so that the gravel can be impacted by the inner wall of the shell 1, and the gravel entering the shell 1 is impacted more evenly, thereby improving the shaping efficiency of the gravel. Secondly, the gravel falls directly into the discharge area 41, so that the rotating block 4 is prevented from being directly impacted by the gravel, thereby improving the service life of the rotating block 4.

[0030] like Figure 4 and Figure 5 As shown, the fixed plate 3 includes a plate body 301, which is rotatably mounted on the lower end of the lower hopper 2, three sets of guide plates 303 distributed at equal angles on the lower end surface of the plate body 301, the lower end surface of the guide plate 303 is fixedly connected to the rotating block 4, a receiving block 304 fixedly connected to the upper end surface of the guide plate 303, three sets of connecting rods 305, one end of the connecting rod 305 is hinged to the receiving block 304, and the other end of the connecting rod 305 is hinged to the movable plate 306, the movable plate 306 is sleeved on the lower hopper 2, and the movable plate 306 is rotatably mounted on the movable plate 306. A lifting ring 307 and a hydraulic cylinder 308 for driving the lifting ring 307. A fixing plate 21 is fixedly welded on the outer ring of the lower hopper 2. The hydraulic cylinder 308 is fixedly installed on the fixing plate 21. The lower end of the hydraulic cylinder 308 is fixedly connected to the lifting ring 307. Three groups of rectangular grooves 3011 are opened at equal angles on the upper end surface of the disk body 301. The receiving block 304 is slidably connected to the rectangular grooves 3011. Three groups of guide grooves 3021 are opened at equal angles on the lower end surface of the disk body 301. The guide plate 303 is movably plugged into the guide grooves 3021.

[0031] Specifically, since there may be larger stones left in the crushed stones discharged into the lower hopper 2, if multiple larger stones enter the discharge area 41 at one time, under the action of centrifugal force, the larger stones will easily get stuck in the discharge area 42, causing a jam. When dealing with the jam, the staff needs to enter the shell 1 to operate, which not only makes the staff's efficiency in clearing the jam in the discharge area 42 slow, but also has a high risk factor in the working environment, affecting personal safety. In the initial state, the guide plate 303 is completely located in the guide groove 3021. Therefore, when a jam occurs between the three groups of rotating blocks 4, the discharge of crushed stones into the lower hopper 2 is suspended, and the three groups of rotating blocks 4 continue to rotate. At the same time, the rotating block 4 drives the disc 301 to rotate together with the receiving block 304 through the guide plate 303, and the rotating disc 301 rotates through the receiving block 304. The connecting rod 305 is driven to rotate together with the movable disk 306, and then the hydraulic cylinder 308 is started. The hydraulic cylinder 308 pushes the lifting ring 307 together with the movable disk 306 to move downward, and the movable disk 306 will slide along the lower hopper 2. At the same time, the movable disk 306 presses down the three groups of connecting rods 305, so that the three groups of connecting rods 305 respectively push the three groups of receiving blocks 304 to slide along the corresponding rectangular grooves 3011, and the sliding receiving blocks 304 drive the guide plates 303 to slide along the guide grooves 3021, and the rotating blocks 4 move together with the guide plates 303, so that the spacing between the three groups of guide plates 303 is pulled to the maximum. Under the action of centrifugal force, the larger stones that cause jams will pass through the discharge area 42 smoothly, thereby realizing the processing of jams between the three groups of rotating blocks 4. The fixed disk 3 has a simple structure and is easy to operate, which improves the efficiency of processing jams.

[0032] Embodiment 2

[0033] like Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, compared with Example 1, another implementation of the present invention is: a movable tube 3041 is inserted at one end of the rotating block 4, a roller 3042 rotatably installed on one end of the movable tube 3041, a rectangular shaft 3043 movably inserted into the movable tube 3041, the rectangular shaft 3043 is fixedly installed in the rotating block 4, a sliding sleeve 3044 movably sleeved on the rectangular shaft 3043, a first spring 3045 sleeved on the rectangular shaft 3043, the first spring 3045 is located between the sliding sleeve 3044 and the movable tube 3041, a hinge shaft 3046, the hinge shaft 3046 is fixedly installed in the rotating block 4, two sets of swing rods 3047, the swing rod 3047 is hinged to the hinge shaft 3046, the upper end of the swing rod 3047 is close to the sliding sleeve 3044, and a rectangular through hole 411 is opened at one end of the rotating block 4 , the movable tube 3041 is movably inserted into the rectangular through hole 411, two groups of detection plates 401 are symmetrically arranged in the rotating block 4, two groups of guide pillars 402 are fixedly installed on the detection plate 401, and a guide sleeve 403 is slidably connected to the guide pillar 402. The guide sleeve 403 is fixedly installed in the rotating block 4, and a second spring 404 is sleeved on the guide pillar 402. A fixing ring 22 is fixedly sleeved at the lower end of the lower hopper 2, and an extrusion sensor 23 is embedded and installed on the outer ring of the fixing ring 22. The roller 3042 is close to the outer ring of the fixing ring 22. Two groups of movable openings 43 are symmetrically opened on the inner side of the rotating block 4, and the detection plate 401 is inserted into the movable opening 43. A receiving shaft 4011 is fixedly connected to one side of the rotating block 4, and a receiving groove 471 is opened at the lower end of the rocker 3047, and the end of the receiving shaft 4011 is located in the receiving groove 471.

[0034] Specifically, when a jam occurs in the discharge area 42, since it is impossible to ensure that the staff can be near the device in real time, the jam problem cannot be discovered in time, resulting in the jam problem cannot be handled in time, affecting the efficiency and quality of crushed stone shaping. During the crushed stone shaping process, the end of the squeeze sensor 23 protrudes from the outer ring of the fixed ring 22, and the roller 3042 rolls around the outer ring of the fixed ring 22. The rolling roller 3042 is pushed by the end of the squeeze sensor 23, and the roller 3042 drives the movable tube 3041 along the rectangular through hole 411. The movable tube 3041 slides toward the sliding sleeve 3044, and the movable tube 3041 compresses the first spring 3045. The rebound force of the first spring 3045 acts on the end of the extrusion sensor 23, so that the extrusion sensor 23 implements the extrusion force value of the detection roller 3042. Therefore, when the crushed stone is stuck in the discharge area 42, the crushed stone will be blocked in a relatively narrow area in the discharge area 42. Since the detection plate 401 on the rotating block 4 is located in a relatively narrow area in the discharge area 42, under the action of centrifugal force, the blocked crushed stone will move from the relatively narrow area in the discharge area 42 to the wide area. The moving force causes the detection plate 401 to be squeezed by the blocked gravel, and the squeeze causes the detection plate 401 to retreat along the movable opening 43. At the same time, the detection plate 401 drives the guide column 402 to slide along the guide sleeve 403 and compresses the second spring 404. As the detection plate 401 moves, the detection plate 401 drives the receiving shaft 4011 to squeeze the groove wall of the receiving groove 471, so that the swing rod 3047 deflects toward the axis of rotation of the rotating block 4. At the same time, the upper end of the swing rod 3047 squeezes the sliding sleeve 3044, so that the sliding sleeve 3044 moves along the rectangular shaft 3043. It slides toward the movable tube 3041 and compresses the first spring 3045. Therefore, when the roller 3042 is squeezed by the end of the squeeze sensor 23, the first spring 3045 will be compressed for the second time, so that the rebound force of the first spring 3045 becomes larger. The squeeze sensor 23 detects that the squeezing force of the roller 3042 will become larger. The squeeze sensor 23 transmits the abnormal signal to the back-end processor of the device. The back-end processor controls the hydraulic cylinder 308 to solve the jam problem in time and quickly, thereby ensuring the efficiency and quality of gravel shaping.

[0035] Working principle: First, the main shaft 6 is driven by the motor to rotate, and the main shaft 6 drives the rotating disk 5 together with the three groups of rotating blocks 4 to rotate at high speed, and then the crushed stones are discharged into the lower hopper 2, and the crushed stones fall into the drop area 41 between the three groups of rotating blocks 4 along the inner cavity of the lower hopper 2. At this time, the crushed stones falling into the drop area 41 will rotate with the three groups of rotating blocks 4, and the rotation will generate centrifugal force, so that the crushed stones in the drop area 41 will fly around the shell 1 through the three groups of discharging areas 42, and the scattered crushed stones will hit the inner wall of the shell 1, and the impact will break the crushed stones. At the same time, some of the crushed stones will rebound after the impact, and the rebounded crushed stones will hit the crushed stones scattered from the discharging area 42 head-on, so that the crushed stones are impacted and shaped for many times, and the shaped crushed stones are discharged through the lower port of the shell 1;

[0036] When a jam occurs between the three groups of rotating blocks 4, the discharge of crushed stones into the lower hopper 2 is stopped, and the three groups of rotating blocks 4 continue to rotate. At the same time, the rotating blocks 4 drive the disc 301 and the receiving block 304 to rotate together through the guide plate 303. The rotating disc 301 drives the connecting rod 305 and the movable disc 306 to rotate together through the receiving block 304. Then the hydraulic cylinder 308 is started, and the hydraulic cylinder 308 pushes the lifting ring 307 and the movable disc 306 to move downward. 6 will slide along the lower hopper 2, and at the same time, the movable plate 306 presses down the three groups of connecting rods 305, so that the three groups of connecting rods 305 respectively push the three groups of receiving blocks 304 to slide along the corresponding rectangular grooves 3011, and the sliding receiving blocks 304 drive the guide plates 303 to slide along the guide grooves 3021, and the rotating block 4 moves together with the guide plates 303, so that the spacing between the three groups of guide plates 303 is pulled to the maximum. Under the action of centrifugal force, the larger stones that cause jamming will smoothly pass through the discharge area 42;

[0037] When the crushed stone is stuck in the discharge area 42, the crushed stone will be blocked in the narrower area of ​​the discharge area 42. Since the detection plate 401 on the rotating block 4 is located in the narrower area of ​​the discharge area 42, under the action of centrifugal force, the blocked crushed stone will generate a force to move from the narrower area of ​​the discharge area 42 to the wider area, so that the detection plate 401 is squeezed by the blocked crushed stone, and the squeezing causes the detection plate 401 to retreat along the movable opening 43. At the same time, the detection plate 401 drives the guide column 402 to slide along the guide sleeve 403 and compresses the second spring 404. As the detection plate 401 moves, the detection plate 401 drives the receiving shaft 4011 to squeeze the receiving groove 471. The wall causes the rocker arm 3047 to deflect toward the axis direction of the rotating block 4. At the same time, the upper end of the rocker arm 3047 squeezes the sleeve 3044, causing the sleeve 3044 to slide along the rectangular shaft 3043 toward the movable tube 3041 and compress the first spring 3045. Therefore, when the roller 3042 is squeezed by the end of the squeeze sensor 23, the first spring 3045 will be compressed for the second time, causing the rebound force of the first spring 3045 to increase. The squeeze sensor 23 detects that the squeezing force of the roller 3042 will increase, and the squeeze sensor 23 transmits the abnormal signal to the back-end processor of the device, which controls the hydraulic cylinder 308.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A low-size crushed stone processing and shaping device, comprising a housing (1), characterized in that: A lower hopper (2) is arranged in the upper end of the housing (1); a fixed disk (3) is fixedly mounted on the lower end of the lower hopper (2); three groups of rotating blocks (4) are arranged at equal angles below the fixed disk (3); the three groups of rotating blocks (4) are all fixedly mounted on a rotating disk (5); the lower end surface of the rotating disk (5) is fixedly connected to a main shaft (6); the main shaft (6) is rotatably mounted on a support frame (7); and the support frame (7) is fixedly mounted in the lower end of the housing (1); The upper end of the rotating block (4) is in contact with the lower end surface of the fixed plate (3), and a material drop zone (41) is formed between the three groups of rotating blocks (4). The lower port of the lower hopper (2) is located directly above the material drop zone (41), and three groups of material discharge zones (42) are distributed at equal angles around the material drop zone (41).

2. The low-size crushed stone processing and shaping device according to claim 1 is characterized by: The fixed plate (3) comprises: A disc body (301), the disc body (301) is rotatably mounted on the lower end of the lower hopper (2); Three groups of guide plates (303) are distributed at equal angles on the lower end surface of the disk body (301), and the lower end surface of the guide plates (303) is fixedly connected to the rotating block (4); A receiving block (304) fixedly connected to the upper end surface of the guide plate (303); Three groups of connecting rods (305), one end of each connecting rod (305) is hinged to a receiving block (304), and the other end of each connecting rod (305) is hinged to a movable disk (306); The movable plate (306) is sleeved on the lower hopper (2); Rotating a lifting ring (307) mounted on the movable disk (306); A hydraulic cylinder (308) is used to drive the lifting ring (307).

3. The low-size crushed stone processing and shaping device according to claim 2 is characterized by: A fixing plate (21) is fixedly welded on the outer ring of the lower hopper (2), the hydraulic cylinder (308) is fixedly installed on the fixing plate (21), and the lower end of the hydraulic cylinder (308) is fixedly connected to the lifting ring (307).

4. A low-size crushed stone processing and shaping device according to claim 3, characterized in that: The upper end surface of the disk body (301) is provided with three groups of rectangular grooves (3011), and the receiving block (304) is slidably connected to the rectangular grooves (3011).

5. The low-size crushed stone processing and shaping device according to claim 4 is characterized by: The lower end surface of the disk body (301) is provided with three groups of guide grooves (3021) at equal angles, and the guide plate (303) is movably plugged into the guide grooves (3021).

6. The low-size crushed stone processing and shaping device according to claim 5, characterized in that: A movable tube (3041) is inserted into one end of the rotating block (4); Rotating a roller (3042) mounted on one end of the movable tube (3041); A rectangular shaft (3043) movably plugged into the movable tube (3041), wherein the rectangular shaft (3043) is fixedly installed in the rotating block (4); A sliding sleeve (3044) movably mounted on the rectangular shaft (3043); a first spring (3045) sleeved on the rectangular shaft (3043), wherein the first spring (3045) is located between the sliding sleeve (3044) and the movable tube (3041); An articulated shaft (3046), wherein the articulated shaft (3046) is fixedly mounted in the rotating block (4); Two groups of swing rods (3047), wherein the swing rods (3047) are hinged to the hinge shaft (3046), and the upper ends of the swing rods (3047) are tightly attached to the sliding sleeve (3044).

7. The low-size crushed stone processing and shaping device according to claim 6 is characterized by: A rectangular through hole (411) is provided at one end of the rotating block (4), and the movable tube (3041) is movably plugged into the rectangular through hole (411).

8. The low-size crushed stone processing and shaping device according to claim 7 is characterized by: Two groups of detection plates (401) are symmetrically arranged in the rotating block (4); Two groups of guide posts (402) fixedly mounted on the detection plate (401); A guide sleeve (403) slidably connected to the guide post (402), wherein the guide sleeve (403) is fixedly installed in the rotating block (4); A second spring (404) is sleeved on the guide post (402).

9. The low-size crushed stone processing and shaping device according to claim 8, characterized in that: A fixing ring (22) is fixedly mounted on the lower end of the lower hopper (2), an extrusion sensor (23) is embedded and mounted on the outer ring of the fixing ring (22), and the roller (3042) is tightly attached to the outer ring of the fixing ring (22).

10. The low-size crushed stone processing and shaping device according to claim 9, characterized in that: Two groups of movable openings (43) are symmetrically provided on the inner side of the rotating block (4), the detection plate (401) is plugged into the movable openings (43), a receiving shaft (4011) is fixedly connected to one side of the rotating block (4), a receiving groove (471) is provided at the lower end of the swing rod (3047), and the end of the receiving shaft (4011) is located in the receiving groove (471).

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