Stone crusher for civil engineering

Abstract

The utility model provides a stone crusher for constructional engineering, which comprises a base, a stone crushing cylinder, a knocking system and a transmission system, a grinding ball is arranged in the stone crushing cylinder, a screening net plate is arranged on the stone crushing cylinder, and the stone crushing cylinder is knocked by the knocking system. According to the utility model, due to the arrangement of the grinding ball knocking system, the crushing effect can be achieved without repeated crushing, the stone crushing cylinder is knocked by the knocking system, and the condition that the screening net plate is blocked or gravels are blocked can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stone crushing in civil engineering, in particular to a stone crusher for civil engineering. Background Art

[0002] Civil engineering is a general term for the science and technology of building various types of land engineering facilities. It refers to the materials, equipment, survey, design, construction, maintenance, repair and other technical activities used, as well as the objects of engineering construction. In the process of civil engineering construction, useless stones need to be crushed. The crushed stones can then be used as foundation to increase the hardness of the soil, or crushed into fine sand and mixed with cement. Crushing requires the use of a crusher.

[0003] A patent application with publication number CN212882797U discloses an efficient stone crusher for construction and civil engineering; the patent can buffer the stone through the buffer plate to prevent the stone from directly rushing into the crushing box, effectively reducing the impact force of the stone on the crushing device in the crushing box, and then the driving wheel drives the driven wheel to rotate through the transmission belt, so that the two crushing bodies crush the stone in the crushing box at the same time, and the crushing body and the fixed blade squeeze and crush each other, so that the crushing is sufficient and efficient, and by setting a guide plate, the stone on the upper end of the guide plate can be freely slid down by gravity, and the discharge is smooth.

[0004] In the above-mentioned prior art, when crushing and screening gravel of the required size, it is troublesome to crush the crushed stone for multiple times to meet the usage requirements. In addition, during the crushing and collection process of the crushed stone, it is impossible to prevent the screening mesh from being blocked or stuck with gravel and crushed stone, causing the gravel to be stuck in the mesh holes of the screening mesh, affecting its collection and subsequent discharge of crushed gravel. Summary of the invention

[0005] In view of this, the utility model proposes a stone crusher for civil engineering, aiming to solve the problems of the prior art requiring multiple screenings and the easy clogging of the screening mesh plate.

[0006] The utility model provides a stone crusher for construction engineering, comprising:

[0007] A base, on which two fixing frames are provided, respectively arranged at two ends of the base;

[0008] The crushing cylinder has two ends connected to the fixed frame respectively, a transmission shaft is provided through the inner cavity of the crushing cylinder, two ends of the transmission shaft pass through the crushing cylinder and are rotatably connected to the fixed frame, a plurality of flipping frames are provided on the transmission shaft, and when the transmission shaft rotates, the flipping frames can be driven to rotate in the crushing cylinder, and grinding balls are placed in the crushing cylinder, which can cooperate with the flipping frames to flip, so as to grind the crushed stones in the crushing cylinder;

[0009] A knocking system, wherein the first end of the knocking system is connected to the fixed frame through a support frame and can rotate relative to the support frame, and the second end of the knocking system can intermittently knock the stone crushing tube, and the number of the support frames corresponds to the number of the fixed frame. The first end of the knocking system is located between the two support frames;

[0010] The transmission system includes a motor, a conveyor belt and a torsion system. The motor is arranged on one of the fixed frames. The conveyor belt is connected to the shaft of the motor and the shaft end of the transmission shaft. When the motor is running, the transmission of the conveyor belt can drive the transmission shaft to rotate. The torsion system is connected to the shaft end of the transmission shaft and the first end of the knocking system, and can transmit the power of the shaft end of the transmission shaft to the knocking system, so that it can intermittently knock on the crushing barrel.

[0011] Preferably, the crushing cylinder is provided with a feed port at the top and a discharge port at the bottom; the inner cavity of the feed port is fixedly connected to a funnel to facilitate the delivery of crushed stone materials; a screening mesh plate is provided inside the crushing cylinder corresponding to the discharge port for screening the crushed stone particles.

[0012] Preferably, a material guide cover is provided corresponding to the discharge port, and the crushed stone particles are discharged through the material guide cover after being screened by the screening mesh plate.

[0013] Preferably, the grinding ball is a metal sphere with a plurality of conical protrusions evenly arranged on the outside.

[0014] Preferably, the knocking system includes a rotating column, an L-shaped support frame and a knocking block; the rotating column is arranged between the two support frames, and its two ends are rotatably connected to one of the support frames respectively, and the end head of the rotating column is connected to the torsion system, and can receive its torsion force and thus rotate relative to the support frame; the rotating column is externally engaged with the first end of the L-shaped support frame, and the knocking block is installed on the second end of the L-shaped support frame, and the knocking block is arranged corresponding to the barrel of the crushing cylinder, and when the rotating column rotates, it drives the L-shaped support frame and the knocking block to rotate as a whole and thus move away from the crushing cylinder, and the knocking block knocks the crushing cylinder when it falls back.

[0015] Preferably, the first end of the L-shaped support frame is provided with a sleeve structure adapted to the rotating column, so that the L-shaped support frame can be sleeved on the rotating column. A limiting clip is provided on the outside of the rotating column, and a limiting clip is provided on the sleeve structure corresponding to the limiting clip, so that the L-shaped support frame can be snapped onto the rotating column.

[0016] Preferably, a rubber protective sleeve is provided outside the knocking block.

[0017] Preferably, the torsion system includes a first intermittent gear, a second intermittent gear and a rotating rod; the first intermittent gear is arranged at the shaft end of the transmission shaft, the second intermittent gear is connected to the first end of the knocking system, and semi-circular gear rings are provided at both ends of the rotating rod, which respectively mesh with the first intermittent gear and the second intermittent gear. A cylinder is provided in the middle of the rotating rod, one end of the cylinder is connected to the rotating rod, and the other end is connected to the inside of the support frame and connected to a rotating assembly provided in the support frame; when the transmission shaft rotates, it drives the first intermittent gear to rotate, thereby driving one of the semi-circular gear rings to rotate, and further drives the rotating rod. During the rotation of the rotating rod, the other semi-circular gear ring is used to mesh with The second intermittent gear is driven to rotate, and the second intermittent gear drives the rotating column to rotate. At the same time, the rotating column uses the limit card strip to drive the L-shaped support frame to flip, so that the knocking block is lifted away from the crushing cylinder. When the first intermittent gear is disengaged from one of the semicircular gear rings, the other semicircular gear ring will also be disengaged from the second intermittent gear. At this time, the L-shaped support frame is pulled down rapidly by the weight of the knocking block, and the knocking block knocks the crushing cylinder. At the same time, after disengagement, the rotating assembly drives the cylinder and the rotating rod to rotate, so that the semicircular gear ring is meshed with the first intermittent gear and the second intermittent gear again, entering the next knocking cycle.

[0018] Preferably, the rotating assembly includes a protective cylinder, a fixed disk and a torsion spring arranged inside the protective cylinder; the internal space of the protective cylinder and the support frame form a connected cylindrical cavity, the other end of the cylinder is located in the cylindrical cavity, and the other end is rotatably connected to the wall of the protective cylinder, the fixed disk is arranged on the cylinder, one end of the torsion spring is connected to the fixed disk, and the other end is connected to the support frame; when the semicircular gear ring is engaged and rotated, it drives the rotating rod to rotate, and the cylinder and the fixed disk follow the rotation, and at the same time, a torsion force is applied to the torsion spring, and when the torsion spring releases the torsion force, the fixed disk is rotated, and the fixed disk drives the cylinder to rotate, and the cylinder drives the rotating rod to rotate, and at the same time, the rotating rod drives the semicircular gear ring to engage with the first intermittent gear and the second intermittent gear again.

[0019] Preferably, the conveyor belt is a toothed belt, and corresponding to the toothed belt, the motor shaft is provided with a first pulley, the shaft end of the transmission shaft is provided with a second pulley, the toothed belt is sleeved on the first pulley and the second pulley, the first intermittent gear is coaxially arranged with the second pulley, and when the transmission shaft rotates, the second pulley rotates synchronously with the first intermittent gear.

[0020] The stone crusher for construction engineering provided by the utility model has the following advantages: in the process of crushing stones, the semicircular gear ring is driven to rotate by the first intermittent gear, and at the same time, the semicircular gear ring drives the rotating rod to rotate, and during the rotation of the rotating rod, the L-shaped support frame is driven to flip, and then the L-shaped support frame uses the weight of the knocking block to fall quickly, so that the knocking block knocks the stone crushing cylinder, so that the stones in the inner cavity of the stone crushing cylinder are prevented from getting stuck, thereby improving the efficiency of stone crushing, and at the same time, the torsion spring in the inner cavity of the protection cylinder will rotate and twist the fixed plate, and then the fixed plate drives the cylinder to rotate, and the cylinder drives the rotating rod to rotate, and at the same time, the rotating rod drives the semicircular gear ring to mesh with the first intermittent gear and the second intermittent gear again, so that the knocking block can cyclically knock the stone crushing cylinder to prevent the screening mesh plate from being blocked or stuck. The present invention relates to a method for crushing gravel and sand by using a first pulley and a second pulley to rotate through an output shaft of a driving motor, and then drives the first intermittent gear to rotate, and then drives the transmission shaft to rotate, and makes the transmission shaft drive the turning frame to rotate, and then makes the turning frame drive the gravel and the metal balls in the inner cavity of the crushing cylinder to turn over, and when the turned gravel and the metal balls roll in the inner cavity of the crushing cylinder, the conical protrusions on the outside of the metal balls are used to crush the gravel, and when the gravel is crushed into gravel, it is continuously screened and filtered through a screening mesh plate, and then discharged into the inner cavity of the guide cover, and discharged and collected through a discharge port, thereby solving the problem that the existing civil engineering crusher continuously crushes the gravel to screen out gravel of the required size, resulting in the gravel needing to be crushed multiple times to meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 A front view of the overall structure of the stone crusher provided by the embodiment of the utility model;

[0023] Figure 2 A rear structural schematic diagram of a stone crusher provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the internal structure of a half-sectioned stone crushing cylinder provided in an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of a half-section installation structure of a support frame provided in an embodiment of the utility model;

[0026] Figure 5A schematic diagram of the structure of the enlarged installation of the rotary assembly provided in the embodiment of the utility model;

[0027] In the figure, 1, base, 2, fixed frame, 3, stone crushing cylinder, 4, knocking system, 5, transmission system, 6, support frame;

[0028] 31. Drive shaft, 32. Flipping frame, 33. Grinding ball, 34. Feed inlet, 35. Funnel, 36. Discharge outlet, 37. Screening mesh plate, 38. Material guide cover, 41. Rotating column, 42. L-shaped support frame, 43. Knocking block, 44. Limiting card strip, 51. Motor, 52. Conveyor belt, 53. Torsion system, 531. First intermittent gear, 532. Second intermittent gear, 533. Rotating rod, 534. Semicircular gear ring, 535. Cylinder, 54. Rotating assembly, 541. Protective cylinder, 542. Fixed disk, 543. Torsion spring, 55. First pulley, 56. Second pulley. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] See also Figure 1-5As shown, it is a kind of stone crusher for civil engineering provided by an embodiment of the utility model, comprising a base 1, a stone crushing drum 3, a knocking system 4 and a transmission system 5; the base 1 is provided with two fixed frames 2, and are respectively arranged at the two ends of the base 1; the two ends of the stone crushing drum 3 are respectively connected to one of the fixed frames 2, and a transmission shaft 31 is penetrated through the inner cavity of the stone crushing drum 3, and the two ends of the transmission shaft 31 penetrate the stone crushing drum 3 and are rotatably connected to the fixed frame 2, and a plurality of flipping frames 32 are provided on the transmission shaft 31, and when the transmission shaft 31 rotates, it can drive the flipping frames 32 to rotate in the stone crushing drum 3, and grinding balls 33 are placed in the stone crushing drum 3, which can cooperate with the flipping frames 32 to flip, so as to grind the crushed stones in the stone crushing drum; the first end of the knocking system 4 is connected to the fixed frame through the support frame 6, and can The second end of the knocking system 4 can intermittently knock the crushing tube 3 by rotating relative to the support frame 6. The number of the support frames 6 corresponds to the number of the fixed frames 2, and the first end of the knocking system 4 is located between the two support frames 6. The transmission system 5 includes a motor 51, a conveyor belt 52 and a torsion system 53. The motor 51 is arranged on one of the fixed frames 2. The conveyor belt 52 is connected to the shaft of the motor 51 and the shaft end of the transmission shaft 31. When the motor 51 is running, the transmission shaft 31 can be driven to rotate through the transmission of the conveyor belt 52. The torsion system 53 is connected to the shaft end of the transmission shaft 31 and the first end of the knocking system 4, and can transmit the power of the shaft end of the transmission shaft 31 to the knocking system 4, so that it can intermittently knock the crushing tube 3. In this embodiment, the combination of the flipping frame and the grinding ball can increase the crushing of the crushed stone and quickly reach the required particle size. At the same time, due to the continuous knocking of the knocking system, the crushed stone can be prevented from being blocked at the outlet of the crushing tube.

[0031] In this embodiment, refer to Figure 1 , 3 As shown, the crushing cylinder 3 is provided with a feed port 34 at the upper part and a discharge port 36 at the lower part; the inner cavity of the feed port 34 is fixedly connected to a funnel 35 for the convenience of feeding the crushed stone material; the inside of the crushing cylinder 3 is provided with a screening mesh plate 37 corresponding to the discharge port 34 for screening the crushed stone particles, and the knocking of the knocking system can prevent the screening mesh plate from being blocked.

[0032] Continue to refer to Figure 1 , 3 As shown, the discharge port 36 is provided with a material guide cover 38. After the crushed stone particles are screened by the screening mesh plate 37, in this embodiment, the material guide cover can ensure that the crushed stone is discharged to the designated position to prevent the material from flying around.

[0033] In this embodiment, preferably, the grinding balls 33 are metal spheres with a plurality of conical protrusions evenly arranged on the outside. Such a design further improves the grinding rate.

[0034] Reference Figure 1-3 As shown, the knocking system 4 includes a rotating column 41, an L-shaped support frame 42 and a knocking block 43; the rotating column 41 is arranged between the two support frames 6, and its two ends are rotatably connected to one of the support frames 6, and the end of the rotating column 41 is connected to the torsion system 53, and can receive its torsion force and thus rotate relative to the support frame 6; the rotating column 41 is externally engaged with the first end of the L-shaped support frame 42, and the second end of the L-shaped support frame 42 is installed with the knocking block 43, and the knocking block 43 is arranged corresponding to the barrel body of the crushing tube 3, and when the rotating column 41 rotates, it drives the L-shaped support frame 42 and the knocking block 43 to rotate as a whole so as to move away from the crushing tube 3, and the knocking block 43 knocks the crushing tube 3 when it falls back.

[0035] Continue to refer to Figure 1-3 As shown, the first end of the L-shaped support frame 42 is provided with a sleeve structure adapted to the rotating column 41, so that the L-shaped support frame 42 can be sleeved on the rotating column 41, and a limiting clip 44 is provided on the outside of the rotating column 41. A limiting clip is provided on the sleeve structure corresponding to the limiting clip, so that the L-shaped support frame 42 can be snapped onto the rotating column 41.

[0036] In this embodiment, preferably, a rubber protective cover is provided on the outside of the knocking block 43 to reduce mechanical damage caused by direct impact.

[0037] Reference Figure 1 , 2As shown in Figure 5, the torsion system 53 includes a first intermittent gear 531, a second intermittent gear 532 and a rotating rod 533; the first intermittent gear 531 is arranged at the shaft end of the transmission shaft 31, the second intermittent gear 532 is connected to the first end of the knocking system 4, and semi-circular gear rings 534 are provided at both ends of the rotating rod 533, which respectively mesh with the first intermittent gear 531 and the second intermittent gear 532, and a cylinder 535 is provided in the middle of the rotating rod 533, one end of the cylinder 535 is connected to the rotating rod 533, and the other end is connected to the inside of the support frame 6 and connected to the rotating component 54 provided in the support frame 6; as shown in the figure, a torsion system 53 is arranged on each fixed frame, wherein a torsion system 53 with a motor 51 transmits the power of the motor 51 to the torsion system 53 through a transmission belt 52. When the transmission shaft 31 rotates, it drives the first intermittent gear 531 to rotate, thereby driving one of the semicircular gear rings 534 to rotate, and further drives the rotating rod 533. During the rotation of the rotating rod 533, the other semicircular gear ring 534 is used to mesh and drive the second intermittent gear 532 to rotate, so that the second intermittent gear 532 drives the rotating column 41 to rotate. At the same time, the rotating column 41 drives the L-shaped support frame 42 to flip over by using the limiting card strip 44, so that the knocking block 43 is lifted away from the crushing cylinder 3. When the first intermittent gear 531 rotates, the knocking block 43 is lifted away from the crushing cylinder 3. When the semicircular gear ring 534 is disengaged from 31, the other semicircular gear ring 534 will also be disengaged from the second intermittent gear 532. At this time, the L-shaped support frame 42 is pulled down rapidly by the weight of the knocking block 43, and the knocking block 43 knocks the crushing cylinder 3. At the same time, after being disengaged, the rotating assembly 54 drives the cylinder 535 and the rotating rod 533 to rotate, so that the semicircular gear ring 534 is engaged with the first intermittent gear 531 and the second intermittent gear 532 again, entering the next knocking cycle.

[0038] Reference Figure 5As shown, the rotary assembly 54 includes a protective tube 541, a fixed disk 542 and a torsion spring 543 arranged inside the protective tube 541; the protective tube 541 and the internal space of the support frame 6 form a connected cylindrical cavity, the other end of the cylinder 535 is located in the cylindrical cavity, and the other end of the cylinder 535 is rotatably connected to the wall of the protective tube 541, the fixed disk 542 is annularly arranged on the cylinder 535, one end of the torsion spring 543 is connected to the fixed disk 542, and the other end is connected to the support frame 6; the semicircular gear ring 534 When the meshing rotation occurs, the rotating rod 533 is driven to rotate, and the cylinder 535 and the fixed disk 542 rotate accordingly, while applying a torsional force to the torsion spring 543. When the torsion spring 543 releases the torsional force, the fixed disk 542 is rotated, and the fixed disk 542 drives the cylinder 535 to rotate, and the cylinder 535 drives the rotating rod 533 to rotate. At the same time, the rotating rod 533 drives the semicircular gear ring 534 to mesh with the first intermittent gear 531 and the second intermittent gear 532 again.

[0039] Reference Figure 1 , 2 As shown in , 4, the conveyor belt 52 is a toothed belt. Corresponding to the toothed belt, the shaft of the motor 51 is provided with a first pulley 55, and the shaft end of the transmission shaft 31 is provided with a second pulley 56. The toothed belt is sleeved on the first pulley 55 and the second pulley 56. The first intermittent gear 531 is coaxially arranged with the second pulley 56. When the transmission shaft 31 rotates, the second pulley 56 rotates synchronously with the first intermittent gear 531.

[0040] The working principle of the stone crusher provided in this embodiment is as follows: when crushing the stone, the stone is put into the inner cavity of the funnel 35, and the stone is introduced into the feed port 34 through the funnel 35 and falls into the stone crushing tube 3, and at the same time, the output shaft of the driving motor 51 drives the first pulley 55 to rotate, and at the same time, the first pulley 55 drives the toothed belt (transmission belt 52) ​​to rotate, and then drives the second pulley 56 to rotate, and during the rotation of the second pulley 56, the first intermittent gear 531 is driven to rotate, and at the same time, the first intermittent gear 531 drives the transmission shaft 31 to rotate, and then the transmission shaft 31 drives the flip frame 32 The turning frame 32 drives the crushed stones and the metal spherical grinding balls in the inner cavity of the crushing cylinder 3 to turn over; and the outer surface of the metal grinding balls is evenly provided with a plurality of conical protrusions, so that when the crushed stones and the metal grinding balls 1 are turned over and roll in the inner cavity of the crushing cylinder 3, the crushed stones can be crushed by the conical protrusions on the outer surface of the metal grinding balls, and when the crushed stones are crushed into gravel, they are continuously screened and filtered through the screening mesh plate 37, and then discharged into the inner cavity of the guide cover 38, and discharged and collected through the discharge port 3; and in the process of driving the first intermittent gear 531 to rotate, the first intermittent gear 531 drives the semicircular gear ring 534 to rotate. The semicircular gear ring 534 drives the rotating rod 533 to rotate, and during the rotation of the rotating rod 533, the semicircular gear ring 534 is used to mesh with the second intermittent gear 532 to rotate, so that the second intermittent gear 532 drives the rotating column 41 to rotate, and at the same time, the rotating column 41 drives the L-shaped support frame 42 to flip by using the limiting card strip 44, and then when the first intermittent gear 531 is disengaged from the semicircular gear ring 534, the semicircular gear ring 534 is also disengaged from the second intermittent gear 532, and at this time, the L-shaped support frame 42 is quickly dropped by the weight of the knocking block 43, and then the knocking block is used to knock the L-shaped support frame 42. 43 strikes the crushing cylinder 3 to prevent the crushed stones in the inner cavity of the crushing cylinder 3 from getting stuck, thereby improving the efficiency of stone crushing; at this time, the torsion spring 543 in the inner cavity of the protective cylinder 541 will rotate and twist the fixed plate 542, and then the fixed plate 542 drives the cylinder 535 to rotate, and the cylinder 535 drives the rotating rod 533 to rotate, and at the same time the rotating rod 533 drives the semicircular gear ring 534 to mesh with the first intermittent gear 531 and the second intermittent gear 532 again, so that the striking block 43 can cyclically strike the crushing cylinder 3 to prevent the screening mesh plate 37 from being blocked or stuck with gravel.

[0041] In summary, the stone crusher provided by the present embodiment has the following beneficial technical effects: during the stone crushing process, the semicircular gear ring is driven to rotate by the first intermittent gear, and at the same time, the semicircular gear ring drives the rotating rod to rotate, and during the rotation of the rotating rod, the L-shaped support frame is driven to flip, and then the L-shaped support frame uses the weight of the knocking block to fall quickly, so that the knocking block knocks the stone crushing cylinder, so that the stone in the inner cavity of the stone crushing cylinder is prevented from getting stuck, thereby improving the stone crushing efficiency, and at the same time, the torsion spring in the inner cavity of the protection cylinder will rotate and twist the fixed plate, and then the fixed plate drives the cylinder to rotate, and the cylinder drives the rotating rod to rotate, and at the same time, the rotating rod drives the semicircular gear ring to mesh with the first intermittent gear and the second intermittent gear again, so that the knocking block can cyclically knock the stone crushing cylinder to prevent the screening mesh from being blocked or stuck. The situation of holding sand and gravel; when crushing the gravel, the output shaft of the driving motor drives the first pulley to rotate, and the second pulley is driven to rotate at the same time, which in turn drives the first intermittent gear to rotate, and then drives the transmission shaft to rotate, and the transmission shaft drives the turning frame to rotate, and then the turning frame drives the gravel and the metal balls in the inner cavity of the crushing cylinder to turn over, and when the turned gravel and the metal balls roll in the inner cavity of the crushing cylinder, the conical protrusions on the outside of the metal balls are used to crush the gravel, and when the gravel is crushed into gravel, it is continuously screened and filtered through the screening mesh plate, and then discharged into the inner cavity of the guide cover, and discharged and collected through the discharge port, thereby solving the problem that the existing civil engineering crusher continuously crushes the gravel to screen out the gravel of the required size, resulting in the need for multiple crushing of the gravel to meet the use requirements.

[0042] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A stone crusher for civil engineering, characterized in that: include: A base, on which two fixing frames are provided, respectively arranged at two ends of the base; The crushing cylinder has two ends connected to the fixed frame respectively, a transmission shaft is provided through the inner cavity of the crushing cylinder, two ends of the transmission shaft pass through the crushing cylinder and are rotatably connected to the fixed frame, a plurality of flipping frames are provided on the transmission shaft, and when the transmission shaft rotates, the flipping frames can be driven to rotate in the crushing cylinder, and grinding balls are placed in the crushing cylinder, which can cooperate with the flipping frames to flip, so as to grind the crushed stones in the crushing cylinder; A knocking system, wherein the first end of the knocking system is connected to the fixed frame through a support frame and can rotate relative to the support frame, and the second end of the knocking system can intermittently knock the stone crushing tube, and the number of the support frames corresponds to the number of the fixed frame. The first end of the knocking system is located between the two support frames; The transmission system includes a motor, a conveyor belt and a torsion system. The motor is arranged on one of the fixed frames. The conveyor belt is connected to the shaft of the motor and the shaft end of the transmission shaft. When the motor is running, the transmission of the conveyor belt can drive the transmission shaft to rotate. The torsion system is connected to the shaft end of the transmission shaft and the first end of the knocking system, and can transmit the power of the shaft end of the transmission shaft to the knocking system, so that it can intermittently knock on the crushing barrel.

2. The stone crusher for civil engineering according to claim 1, characterized in that: The crushing cylinder is provided with a feed port at the top and a discharge port at the bottom; a funnel is fixedly connected to the inner cavity of the feed port to facilitate the delivery of crushed stone materials; a screening mesh plate is provided inside the crushing cylinder corresponding to the discharge port to screen the crushed stone particles.

3. The stone crusher for civil engineering according to claim 2, characterized in that: A material guide cover is provided corresponding to the discharge port, and the crushed stone particles are discharged through the material guide cover after being screened by the screening mesh plate.

4. The stone crusher for civil engineering according to claim 1, characterized in that: The grinding ball is a metal sphere with a plurality of conical protrusions evenly arranged on the outside.

5. The stone crusher for civil engineering according to claim 1, characterized in that: The knocking system includes a rotating column, an L-shaped support frame and a knocking block; the rotating column is arranged between the two support frames, and its two ends are rotatably connected to one of the support frames respectively, and the end head of the rotating column is connected to the torsion system, and can receive its torsion force and thus rotate relative to the support frame; the rotating column is externally engaged with the first end of the L-shaped support frame, and the knocking block is installed on the second end of the L-shaped support frame, and the knocking block is arranged corresponding to the barrel body of the crushing cylinder, and when the rotating column rotates, it drives the L-shaped support frame and the knocking block to rotate as a whole and thus move away from the crushing cylinder, and the knocking block knocks the crushing cylinder when it falls back.

6. The stone crusher for civil engineering according to claim 5, characterized in that: The first end of the L-shaped support frame is provided with a sleeve structure adapted to the rotating column, so that the L-shaped support frame can be sleeved on the rotating column. A limiting clip is provided on the outside of the rotating column, and a limiting clip is provided on the sleeve structure corresponding to the limiting clip, so that the L-shaped support frame can be clamped on the rotating column.

7. The stone crusher for civil engineering according to claim 5, characterized in that: A rubber protective sleeve is arranged outside the knocking block.

8. The stone crusher for civil engineering according to claim 5, characterized in that: The torsion system includes a first intermittent gear, a second intermittent gear and a rotating rod; the first intermittent gear is arranged at the shaft end of the transmission shaft, and the second intermittent gear is connected to the first end of the knocking system. Semicircular gear rings are arranged at both ends of the rotating rod, which respectively mesh with the first intermittent gear and the second intermittent gear. A cylinder is arranged in the middle of the rotating rod, one end of the cylinder is connected to the rotating rod, and the other end is connected to the inside of the support frame and connected to the rotating assembly provided in the support frame; when the transmission shaft rotates, it drives the first intermittent gear to rotate, thereby driving one of the semicircular gear rings to rotate, and further drives the rotating rod. During the rotation of the rotating rod, the other semicircular gear ring is used to mesh with the transmission. The second intermittent gear is driven to rotate, thereby causing the second intermittent gear to drive the rotating column to rotate, and at the same time, the rotating column uses the limit card strip to drive the L-shaped support frame to flip, so that the knocking block is lifted away from the crushing cylinder. When the first intermittent gear is disengaged from one of the semicircular gear rings, the other semicircular gear ring will also be disengaged from the second intermittent gear. At this time, the L-shaped support frame is pulled down rapidly by the weight of the knocking block, and the knocking block knocks the crushing cylinder. At the same time, after disengagement, the rotating assembly drives the cylinder and the rotating rod to rotate, so that the semicircular gear ring is meshed with the first intermittent gear and the second intermittent gear again, entering the next knocking cycle.

9. The stone crusher for civil engineering according to claim 8, characterized in that: The rotating assembly includes a protective cylinder, a fixed disk and a torsion spring arranged inside the protective cylinder; the internal space of the protective cylinder and the support frame forms a connected cylindrical cavity, the other end of the cylinder is located in the cylindrical cavity, and the other end is rotatably connected to the wall of the protective cylinder, the fixed disk is arranged on the cylinder, one end of the torsion spring is connected to the fixed disk, and the other end is connected to the support frame; when the semicircular gear ring is engaged and rotated, it drives the rotating rod to rotate, and the cylinder and the fixed disk rotate with it, and at the same time, a torsion force is applied to the torsion spring, and when the torsion spring releases the torsion force, the fixed disk is rotated, and the fixed disk drives the cylinder to rotate, and the cylinder drives the rotating rod to rotate, and at the same time, the rotating rod drives the semicircular gear ring to engage with the first intermittent gear and the second intermittent gear again.

10. The stone crusher for civil engineering according to claim 8 or 9, characterized in that: The conveyor belt is a toothed belt. Corresponding to the toothed belt, the motor shaft is provided with a first pulley, the shaft end of the transmission shaft is provided with a second pulley, the toothed belt is sleeved on the first pulley and the second pulley, the first intermittent gear is coaxially arranged with the second pulley, and when the transmission shaft rotates, the second pulley rotates synchronously with the first intermittent gear.

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