Crushing device for gravel screening

Abstract

The invention belongs to the technical field of gravel processing, and discloses a crushing device for gravel screening. Comprising a shell and a base sieve plate, the base sieve plate is fixedly connected to the bottom end of the shell, a hammer head is arranged in the shell, a first transmission rod is fixedly connected to the interior of the hammer head, the two ends of the first transmission rod penetrate through the two sides of the shell, and a motor is installed at the top end of the base sieve plate. According to the device, through the structural design of the transmission mechanism, the reciprocating mechanism and the reciprocating compound pipe, the motor drives the hammer head to rotate through the belt wheel and the belt to achieve effective crushing of gravel, the transmission mechanism drives the reciprocating mechanism, the reciprocating compound pipe transversely moves, the gravel is evenly conveyed to the hammer heads at different positions, serious local damage to the hammer heads is effectively avoided, and the service life of the hammer heads is prolonged. The service life of the device is remarkably prolonged, the crushing efficiency of the device is remarkably improved, through the design, it is guaranteed that gravel makes full contact with the hammer head, and the more uniform and efficient crushing effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sand and gravel processing, and more specifically, to a crushing device for sand and gravel screening. Background Art

[0002] Sand and gravel, as a loose mixture of sand and crushed stone, are widely used in the construction of infrastructure such as roads, bridges, water conservancy, hydropower, and railways. In order to improve screening efficiency, meet particle size requirements, reduce ineffective crushing, and optimize subsequent processing, sand and gravel need to be crushed before screening, and this process requires the use of a crushing device.

[0003] Most of the existing crushing devices are hammer crushers, and their working principle is as follows: when the motor drives the rotor to rotate at high speed, the material is sent into the crushing chamber and is crushed by the impact of the hammer. At the same time, an impact plate is installed in the crushing chamber. After being impacted by the hammer, the material will rebound to the impact plate and be impacted and frictioned again to be further crushed. The crushed material is discharged through the screen plate, and the material that reaches the required particle size is collected, while the material that does not meet the particle size will continue to remain in the crushing chamber and continue to be hit by the hammer until it reaches the required particle size.

[0004] However, there is a significant problem when loading existing crushers: since the loading position is fixed, the material always accumulates at a specific position of the hammer head when entering the crushing chamber. This accumulation method causes the local stress of the hammer head to increase abnormally, which in turn causes the local position of the hammer head to be seriously damaged, affecting the overall service life and crushing efficiency of the crusher. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a crushing device for sand and gravel screening.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crushing device for sand and gravel screening, comprising a shell and a base screen plate, the base screen plate is fixedly connected to the bottom end of the shell, a hammer head is arranged inside the shell, a first transmission rod is fixedly connected inside the hammer head, two ends of the first transmission rod pass through two sides of the shell, a motor is installed at the top of the base screen plate, a first pulley is fixedly connected to the output end of the motor, a second pulley is fixedly connected to the outer side of the first transmission rod, a belt is wound between the first pulley and the second pulley, and the crushing device also includes:

[0007] A reciprocating square tube, one end of which is arranged inside the shell, a first guide plate is fixedly connected to the outside of the reciprocating square tube, a pair of first guide rods are slidably connected inside the first guide plate, both ends of the pair of first guide rods are fixedly connected to first fixing plates, the pair of first fixing plates are fixedly connected to both sides of the shell, and a reciprocating mechanism for driving the reciprocating square tube to move horizontally is arranged on the periphery of the reciprocating square tube;

[0008] The transmission mechanism is arranged between the reciprocating mechanism and the first transmission rod, and is used to provide a power source for the reciprocating mechanism.

[0009] The cam is connected to the second end of the guide wheel assembly and the first end of the guide wheel assembly is connected to the second end of the guide wheel assembly by the spring, and the cam is connected to the second end of the guide wheel assembly by the spring.

[0010] Furthermore, the transmission mechanism includes a first sprocket, a second sprocket and a chain, the first sprocket is fixed to the outer side of one end of the first transmission rod away from the second pulley, the second sprocket is fixed to the outer side of one end of the limiting rod away from the second bevel gear, and the chain is wrapped around the outer sides of the first sprocket and the second sprocket.

[0011] Furthermore, a vibration rod is provided on one side of the reciprocating square tube close to the first guide plate, and the vibration rod is in contact with the reciprocating square tube. A side plate is fixedly connected to the outer side of the outer shell, and a plurality of groups of inclined blocks are fixedly connected to the top end of the side plate. The inclined blocks are of "triangular" design, and a dispersion mechanism cooperating with the inclined blocks is provided on the periphery of the vibration rod, and the dispersion mechanism is used to vibrate the reciprocating square tube.

[0012] Further, the dispersion mechanism includes a pair of L-plates, a pair of second guide rods, a support plate, a pair of springs and a displacement rod, the pair of L-plates are fixedly connected to both sides of the reciprocating square tube, the pair of second guide rods are fixedly connected to the side of the reciprocating square tube close to the vibration rod, the end of a pair of second guide rods away from the reciprocating square tube are respectively fixedly connected to the inner side of a pair of L-plates, the support plate is fixedly connected to the end of the vibration rod away from the reciprocating square tube, the pair of second guide rods pass through the support plate, the pair of springs are respectively sleeved on the outer side of a pair of second guide rods, the pair of springs are fixedly connected to the end of the support plate away from the vibration rod, the end of a pair of springs away from the support plate are respectively fixedly connected to the inner side of a pair of L-plates, the displacement rod is fixedly connected to the outer side of the support plate, and the end of the displacement rod away from the support plate is arranged at the top of the side plate.

[0013] Furthermore, a dust suction groove is provided on the side of the shell away from the second pulley, a filter screen is installed inside the dust suction groove, a first blade is provided on the inner side of the shell, and the first blade is in contact with the inner side of the shell close to the filter screen, a second transmission rod is fixedly connected to the inside of the first blade, one end of the second transmission rod away from the first blade passes through the shell and extends to the outside of the shell, one end of the second transmission rod away from the first blade is rotatably connected to a third fixing plate, one end of the third fixing plate away from the second transmission rod is fixedly connected to the outside of the shell, a dust suction mechanism for absorbing dust inside the shell is provided on the outside of the filter screen, and a linkage mechanism cooperating with the first blade is provided on the periphery of the dust suction mechanism.

[0014] Furthermore, the dust suction mechanism includes a dust conveying pipe and an industrial vacuum cleaner, the dust conveying pipe is fixedly connected to the outside of the shell, and the diameter of the dust conveying pipe is larger than the diameter of the filter, and the industrial dust suction mechanism is installed at one end of the dust conveying pipe away from the filter.

[0015] Further, the linkage mechanism includes a rotating groove, an installation box, a second blade, a third transmission rod, a first spur gear and a second spur gear, the rotating groove is opened on the outer side of the dust conveying pipe, the installation box is fixedly connected to the outer side of the dust conveying pipe, the second blade is arranged inside the installation box and the dust conveying pipe, the inside of the second blade is fixedly connected to the third transmission rod, one end of the third transmission rod is rotatably connected to the outer side of the outer shell, the end of the third transmission rod away from the outer shell passes through the side of the installation box close to the outer shell, and the third transmission rod is rotatably connected to the inner wall of the installation box away from the outer shell, the first spur gear is fixedly connected to the outer side of the third transmission rod, the second spur gear is meshed with the first spur gear, and the second spur gear is fixedly connected to the outer side of the second transmission rod.

[0016] The technical effects and advantages of the crushing device for sand and gravel screening of the present invention are as follows:

[0017] (1) The present invention realizes that the motor drives the hammer head to rotate through the pulley and belt to achieve effective crushing of sand and gravel through the structural design of the transmission mechanism, reciprocating mechanism and reciprocating square tube. The transmission mechanism drives the reciprocating mechanism to move the reciprocating square tube horizontally, and evenly transports sand and gravel to the hammer head at different positions, effectively avoiding serious local damage to the hammer head and significantly improving the service life and crushing efficiency of the device. This design ensures full contact between the sand and gravel and the hammer head, and achieves a more uniform and efficient crushing effect.

[0018] (2) The present invention realizes that during the lateral movement of the reciprocating square tube, the dispersion mechanism is driven to interact with the oblique block at the top of the side plate, so that the vibration rod is driven to move upward and reset, causing the reciprocating square tube to vibrate, effectively shaking off the sand and gravel attached to the inside, causing them to fall into the outer shell under the action of gravity. This design not only realizes the uniform transportation of sand and gravel, but also significantly improves the dispersion and crushing efficiency of sand and gravel through intermittent vibration effect, thereby ensuring the continuity and high efficiency of the crushing process.

[0019] (3) Through the structural design of the dust suction mechanism, filter, linkage mechanism and the first blade, the dust suction mechanism can effectively absorb the dust inside the shell, while the filter blocks large particles to ensure the dust suction effect. The linkage mechanism drives the first blade to rotate in contact with the surface of the filter, scraping off accumulated impurities, increasing the dust passing rate of the filter, and avoiding low work efficiency caused by impurities clogging the filter. This design not only keeps the working environment clean, but also significantly improves the dust suction efficiency and the continuous operation capability of the device, ensuring the smooth progress of the crushing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic cross-sectional view of the shell in the present invention.

[0022] Figure 3 It is a schematic diagram of the transmission mechanism structure in the present invention.

[0023] Figure 4 It is a schematic diagram of the reciprocating mechanism structure in the present invention.

[0024] Figure 5 It is a schematic diagram of the ring plate and the support rod structure in the present invention.

[0025] Figure 6 It is a schematic diagram of the reciprocating square tube structure in the present invention.

[0026] Figure 7 For the present invention Figure 6 A is an enlarged structural diagram of FIG.

[0027] Figure 8 It is a schematic diagram of the first blade and filter structure in the present invention.

[0028] Fig. 9 It is a cross-sectional schematic diagram of the installation box in the present invention.

[0029] Fig.10 It is a schematic diagram of the second blade structure in the present invention.

[0030] In the figure:

[0031] 1. Shell; 2. Base screen plate; 3. Hammer; 4. First transmission rod; 5. Motor; 6. First pulley; 7. Second pulley; 8. Reciprocating square tube; 9. First guide plate; 10. First guide rod; 11. First fixed plate; 12. Ring plate; 13. Stop rod; 14. Turntable; 15. Fixed rod; 16. Second fixed plate; 17. First bevel gear; 18. Second bevel gear; 19. Stop tube; 20. Support rod; 21. First sprocket; 22 , the second sprocket; 23, the chain; 24, the vibration rod; 25, the side plate; 26, the inclined block; 27, the L plate; 28, the second guide rod; 29, the support plate; 30, the spring; 31, the displacement rod; 32, the filter; 33, the first blade; 34, the second transmission rod; 35, the third fixed plate; 36, the dust conveying pipe; 37, the installation box; 38, the second blade; 39, the third transmission rod; 40, the first spur gear; 41, the second spur gear; 58, the limit rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 - Figure 5 As shown, a crushing device for sand and gravel screening comprises a shell 1 and a base screen plate 2, wherein the base screen plate 2 is fixedly connected to the bottom end of the shell 1, a hammer head 3 is arranged inside the shell 1, a first transmission rod 4 is fixedly connected inside the hammer head 3, and both ends of the first transmission rod 4 pass through both sides of the shell 1, a motor 5 is installed on the top of the base screen plate 2, a first pulley 6 is fixedly connected to the output end of the motor 5, a second pulley 7 is fixedly connected to the outer side of the first transmission rod 4, a belt is wound between the first pulley 6 and the second pulley 7, and the crushing device also comprises:

[0034] A reciprocating square tube 8, one end of which is arranged inside the housing 1, a first guide plate 9 is fixedly connected to the outside of the reciprocating square tube 8, a pair of first guide rods 10 are slidably connected inside the first guide plate 9, both ends of the pair of first guide rods 10 are fixedly connected to first fixing plates 11, and the pair of first fixing plates 11 are fixedly connected to both sides of the housing 1, and a reciprocating mechanism for driving the reciprocating square tube 8 to move horizontally is arranged on the periphery of the reciprocating square tube 8;

[0035] The transmission mechanism is arranged between the reciprocating mechanism and the first transmission rod 4, and the transmission mechanism is used to provide a power source for the reciprocating mechanism.

[0036] The existing crusher has a significant problem when feeding: since the feeding position is fixed, the material always accumulates at a specific position of the hammer head 3 when entering the crushing chamber. This accumulation method causes the local stress of the hammer head 3 to increase abnormally, which in turn causes the local position of the hammer head 3 to be seriously damaged, affecting the overall service life and crushing efficiency of the crusher. When the embodiment of the present invention is used, the motor 5 is started. When the motor 5 is running, it drives the first pulley 6 to rotate. The rotation of the first pulley 6 drives the second pulley 7 to rotate through the pulley. The second pulley 7 then drives the hammer head 3 to rotate through the first transmission rod 4. At this time, the sand and stone to be crushed are passed through the first transmission rod 4. The compound tube 8 is poured into the interior of the outer shell 1, and when the first transmission rod 4 rotates, it will also drive the reciprocating mechanism to run through the transmission mechanism. When the reciprocating mechanism is running, it can drive the reciprocating square tube 8 to reciprocate horizontally. At this time, the reciprocating square tube 8 drives the first guide plate 9 to move along the outer side of the first guide rod 10, thereby playing a stabilizing role. In the process of the reciprocating square tube 8 moving horizontally, the sand and gravel to be processed inside the reciprocating square tube 8 will be evenly transported to the inside of the outer shell 1, contacting the hammer heads 3 at different positions, thereby effectively avoiding the situation where the local position of the hammer head 3 is seriously damaged, and improving the service life of the device.

[0037] like Figure 3 , Figure 4 and Figure 5As shown, the reciprocating mechanism includes a ring plate 12, a stopper 13, a rotating disk 14, a fixed rod 15, a second fixed plate 16, a first bevel gear 17, a second bevel gear 18, a limit rod 58, a limit tube 19 and a pair of support rods 20. The ring plate 12 is fixedly connected to the side of the reciprocating square tube 8 away from the first guide plate 9, and the stopper 13 is slidably connected to the inside of the ring plate 12. The end of the stopper 13 away from the ring plate 12 is fixedly connected to the rotating disk 14, and the end of the rotating disk 14 away from the stopper 13 is fixedly connected to the fixed rod 15. The fixed rod 15 is away from the rotating disk 1 4 is rotatably connected to the inner side of the second fixing plate 16, one end of the second fixing plate 16 away from the fixing rod 15 is fixedly connected to the outer side of the housing 1, the first bevel gear 17 is fixedly connected to the outer side of the fixing rod 15, the second bevel gear 18 is meshed with the first bevel gear 17, the second bevel gear 18 is fixedly connected to the outer side of the limiting rod 58, the limiting tube 19 is sleeved on the outer side of the limiting rod 58, a pair of the support rods 20 are fixedly connected to the outer side of the limiting tube 19, and one end of the pair of the support rods 20 away from the limiting tube 19 is fixedly connected to the outer side of the housing 1.

[0038] When the transmission mechanism is running, it will drive the limit rod 58 to rotate, and the rotation of the limit rod 58 will drive the first bevel gear 17 to rotate through the second bevel gear 18. The setting of the limit tube 19 and the support rod 20 can support the limit rod 58. When the first bevel gear 17 rotates, it will drive the turntable 14 to rotate continuously through the fixed rod 15, and the rotation of the turntable 14 will drive the push rod 13 to rotate in a circle with the center point of the turntable 14 as the center. During the movement of the push rod 13, the inner side of the ring plate 12 will be squeezed. With the continuous movement of the push rod 13, the ring plate 12 will undergo horizontal reciprocating movement. The reciprocating movement of the ring plate 12 will drive the reciprocating square tube 8 to move back and forth.

[0039] like Figure 2 and Figure 3 As shown, the transmission mechanism includes a first sprocket 21, a second sprocket 22 and a chain 23. The first sprocket 21 is fixedly connected to the outer side of one end of the first transmission rod 4 away from the second pulley 7, the second sprocket 22 is fixedly connected to the outer side of one end of the limiting rod 58 away from the second bevel gear 18, and the chain 23 is wound around the outer sides of the first sprocket 21 and the second sprocket 22.

[0040] When the first transmission rod 4 rotates, the first transmission rod 4 drives the second sprocket 22 to rotate, and the rotation of the second sprocket 22 drives the first sprocket 21 to rotate in the same direction through the chain 23, thereby providing a power source for the reciprocating mechanism.

[0041] like Figure 6 and Figure 7As shown, a vibration rod 24 is provided on one side of the reciprocating square tube 8 close to the first guide plate 9, and the vibration rod 24 is in close contact with the reciprocating square tube 8. A side plate 25 is fixedly connected to the outer side of the outer shell 1, and a plurality of groups of inclined blocks 26 are fixedly connected to the top end of the side plate 25. The inclined blocks 26 are of "triangular" design. A dispersion mechanism matched with the inclined blocks 26 is provided on the periphery of the vibration rod 24, and the dispersion mechanism is used to vibrate the reciprocating square tube 8.

[0042] When the material is put into the shell 1 through the reciprocating square tube 8, a problem may be encountered: the material is easy to adhere to the inner wall of the reciprocating square tube 8. Over a long period of time, this adhesion phenomenon is easy to cause the material to accumulate on the inner wall of the reciprocating square tube 8, thereby affecting the smooth flow of the material and the subsequent processing process. When the embodiment of the present invention is in use, during the lateral movement of the reciprocating square tube 8, it will drive the dispersion mechanism to operate synchronously. Whenever the dispersion mechanism moves to a certain distance with the reciprocating square tube 8, it will contact the inclined block 26 at the top of the side plate 25. Since the position of the inclined block 26 is fixed, when the dispersion mechanism When the inclined surface of the inclined block 26 is squeezed, it will be acted upon by a force and drive the vibration rod 24 to move upward. When the dispersion mechanism passes over a group of inclined blocks 26, it will quickly drive the vibration rod 24 to reset. During this reset process, the vibration rod 24 will hit the outside of the reciprocating square tube 8, thereby causing the reciprocating square tube 8 to vibrate. This vibration can shake off the sand and gravel attached to the inside of the reciprocating square tube 8, causing it to fall into the inside of the outer shell 1 under the action of gravity. As the reciprocating square tube 8 reciprocates, the dispersion mechanism cooperates with multiple groups of inclined blocks 26 to make the vibration rod 24 intermittently hit the reciprocating square tube 8, thereby achieving a better vibration effect.

[0043] like Figure 6 and Figure 7 As shown, the dispersion mechanism includes a pair of L plates 27, a pair of second guide rods 28, a support plate 29, a pair of springs 30 and a displacement rod 31. The pair of L plates 27 are fixedly connected to both sides of the reciprocating square tube 8, the pair of second guide rods 28 are fixedly connected to the side of the reciprocating square tube 8 close to the vibration rod 24, and the ends of the pair of second guide rods 28 away from the reciprocating square tube 8 are respectively fixedly connected to the inner sides of the pair of L plates 27. The support plate 29 is fixedly connected to the end of the vibration rod 24 away from the reciprocating square tube 8. The pair of second guide rods 28 penetrate the support plate 29. The pair of springs 30 are respectively sleeved on the outer sides of the pair of second guide rods 28. The pair of springs 30 are fixedly connected to the end of the support plate 29 away from the vibration rod 24. The ends of the pair of springs 30 away from the support plate 29 are respectively fixedly connected to the inner sides of the pair of L plates 27. The displacement rod 31 is fixedly connected to the outer side of the support plate 29, and the end of the displacement rod 31 away from the support plate 29 is arranged at the top of the side plate 25.

[0044] When the reciprocating square tube 8 moves, it will drive the L plate 27 and the second guide rod 28 to move synchronously. During the movement of the L plate 27, it will drive the support plate 29 and the displacement rod 31 to move. When the displacement rod 31 moves to one end distance, the displacement rod 31 will squeeze the inclined surface of a group of inclined blocks 26. The displacement rod 31 will be forced to drive the support plate 29 to move upward. The upward movement of the support plate 29 pulls the vibration rod 24 upward and squeezes the spring 30, causing it to deform under force. When the displacement rod 31 passes over a group of inclined blocks 26, the reaction force applied by the inclined blocks 26 to the displacement rod 31 ends, and the spring 30 ends the force, and then releases the elastic potential energy, driving the vibration rod 24 to move downward through the support plate 29 to hit the outside of the reciprocating square tube 8, thereby causing the reciprocating square tube 8 to vibrate. The displacement rod 31 also moves downward synchronously with the downward movement of the support plate 29. Therefore, every time the displacement rod 31 passes over a group of inclined blocks 26, the vibration rod 24 will hit the reciprocating square tube 8 once, thereby achieving the function of intermittent impact.

[0045] like Figure 8 , Fig. 9 and Fig.10 As shown, a dust suction groove is provided on the side of the shell 1 away from the second pulley 7, and a filter screen 32 is installed inside the dust suction groove, a first blade 33 is provided on the inner side of the shell 1, and the first blade 33 is in contact with the inner side of the shell 1 close to the filter screen 32, a second transmission rod 34 is fixedly connected to the inside of the first blade 33, one end of the second transmission rod 34 away from the first blade 33 passes through the shell 1 and extends to the outside of the shell 1, one end of the second transmission rod 34 away from the first blade 33 is rotatably connected to a third fixing plate 35, one end of the third fixing plate 35 away from the second transmission rod 34 is fixedly connected to the outside of the shell 1, a dust suction mechanism for absorbing dust inside the shell 1 is provided on the outside of the filter screen 32, and a linkage mechanism cooperating with the first blade 33 is provided on the periphery of the dust suction mechanism.

[0046] When sand and gravel enter the interior of the shell 1, the sand and gravel will generate a lot of dust, and when the hammer head 3 crushes the sand and gravel, dust will also be generated, which will affect the service life of the device and cause serious wear of the equipment. When the embodiment of the present invention is in use, the dust suction mechanism is designed to absorb the dust generated inside the shell 1. During the adsorption process, large particles will be blocked by the filter 32 and cannot pass through the filter 32, thereby effectively realizing the dust absorption function. This design avoids a large amount of dust floating inside the shell 1, ensuring the cleanliness of the working environment. At the same time, when the dust suction mechanism is running, it will also drive the linkage mechanism to work together. Since impurities in the sand and gravel will inevitably accumulate on the surface of the filter 32 during the dust suction process, the operation of the linkage mechanism is particularly important. It will drive the first blade 33 to continuously rotate in contact with the surface of the filter 32, thereby scraping off the attached impurities. This mechanism improves the dust passing rate of the filter 32 and effectively avoids the low work efficiency caused by impurities blocking the filter 32.

[0047] like Figure 8 , Fig. 9 and Fig.10 As shown, the dust collection mechanism includes a dust pipe 36 and an industrial vacuum cleaner. The dust pipe 36 is fixedly connected to the outside of the housing 1, and the diameter of the dust pipe 36 is larger than the diameter of the filter 32. The industrial dust collection mechanism is installed at one end of the dust pipe 36 away from the filter 32.

[0048] When the industrial vacuum cleaner is started, the dust inside the housing 1 is absorbed through the dust conveying pipe 36, and the dust inside the housing 1 enters the interior of the dust conveying pipe 36 through the filter 32, and finally enters the interior of the industrial vacuum cleaner through the dust conveying pipe 36;

[0049] Industrial vacuum cleaners are prior art and the technology is mature, so they will not be elaborated in detail in the present invention.

[0050] like Figure 8 , Fig. 9 and Fig.10 As shown, the linkage mechanism includes a rotating groove, an installation box 37, a second blade 38, a third transmission rod 39, a first spur gear 40 and a second spur gear 41. The rotating groove is opened on the outer side of the dust conveying pipe 36, the installation box 37 is fixedly connected to the outer side of the dust conveying pipe 36, the second blade 38 is arranged inside the installation box 37 and the dust conveying pipe 36, the inside of the second blade 38 is fixedly connected to the third transmission rod 39, one end of the third transmission rod 39 is rotatably connected to the outer side of the outer shell 1, the end of the third transmission rod 39 away from the outer shell 1 passes through the side of the installation box 37 close to the outer shell 1, and the third transmission rod 39 is rotatably connected to the inner wall of the installation box 37 away from the outer shell 1, the first spur gear 40 is fixedly connected to the outer side of the third transmission rod 39, the second spur gear 41 is meshed with the first spur gear 40, and the second spur gear 41 is fixedly connected to the outer side of the second transmission rod 34.

[0051] The internal air of the dust conveying pipe 36 will drive the second blade 38 to rotate under the operation of the industrial vacuum cleaner and the flow of dust. The rotation of the second blade 38 will drive the third transmission rod 39 to rotate. The rotation of the third transmission rod 39 will drive the second spur gear 41 to rotate synchronously through the first spur gear 40. The rotation of the second spur gear 41 will drive the first blade 33 to rotate in contact with the surface of the filter 32 through the second transmission rod 34, thereby scraping off impurities attached to the surface of the filter 32.

[0052] Working principle: There is a significant problem in the existing crusher when feeding: since the feeding position is fixed, the material always accumulates at a specific position of the hammer head 3 when entering the crushing chamber. This accumulation method causes the local stress of the hammer head 3 to increase abnormally, which in turn causes the local position of the hammer head 3 to be seriously damaged, affecting the overall service life and crushing efficiency of the crusher. When the embodiment of the present invention is used, the motor 5 is started, and the motor 5 drives the first pulley 6 to rotate when it is running. The rotation of the first pulley 6 drives the second pulley 7 to rotate through the pulley, and the second pulley 7 then drives the hammer head 3 to rotate through the first transmission rod 4. At this time, the sand and gravel to be crushed are passed through The reciprocating tube 8 is poured into the interior of the housing 1, and when the first transmission rod 4 rotates, it will also drive the reciprocating mechanism to run through the transmission mechanism. When the reciprocating mechanism runs, it can drive the reciprocating tube 8 to reciprocate horizontally. At this time, the reciprocating tube 8 drives the first guide plate 9 to move along the outer side of the first guide rod 10, thereby playing a stabilizing role. In the process of the reciprocating tube 8 reciprocating horizontally, the sand and gravel to be processed inside the reciprocating tube 8 will be evenly transported to the interior of the housing 1, contacting the hammer heads 3 at different positions, thereby effectively avoiding the situation where the local position of the hammer head 3 is seriously damaged, and improving the service life of the device;

[0053] When the transmission mechanism is in operation, it will drive the limit rod 58 to rotate, and the rotation of the limit rod 58 will drive the first bevel gear 17 to rotate through the second bevel gear 18. The setting of the limit tube 19 and the support rod 20 can support the limit rod 58. When the first bevel gear 17 rotates, it will drive the rotating disk 14 to rotate continuously through the fixed rod 15, and the rotation of the rotating disk 14 will drive the push rod 13 to rotate in a circle with the center point of the rotating disk 14 as the center. During the movement of the push rod 13, the inner side of the ring plate 12 will be squeezed, and the continuous movement of the push rod 13 will cause the ring plate 12 to move back and forth horizontally. The reciprocating movement of the ring plate 12 will drive the reciprocating square tube 8 to move back and forth.

[0054] When the first transmission rod 4 rotates, the first transmission rod 4 drives the second sprocket 22 to rotate, and the second sprocket 22 rotates and then drives the first sprocket 21 to rotate in the same direction through the chain 23, thereby providing a power source for the reciprocating mechanism;

[0055] When the material is put into the shell 1 through the reciprocating square tube 8, a problem may be encountered: the material is easy to adhere to the inner wall of the reciprocating square tube 8. Over a long period of time, this adhesion phenomenon is easy to cause the material to accumulate on the inner wall of the reciprocating square tube 8, thereby affecting the smooth flow of the material and the subsequent processing process. When the embodiment of the present invention is in use, during the lateral movement of the reciprocating square tube 8, it will drive the dispersion mechanism to operate synchronously. Whenever the dispersion mechanism moves to a certain distance with the reciprocating square tube 8, it will contact the inclined block 26 at the top of the side plate 25. Since the position of the inclined block 26 is fixed, when the dispersion mechanism When squeezing the inclined surface of the inclined block 26, it will be acted upon by force and drive the vibration rod 24 to move upward. When the dispersion mechanism passes over a group of inclined blocks 26, it will quickly drive the vibration rod 24 to reset. During this reset process, the vibration rod 24 will hit the outside of the reciprocating square tube 8, thereby causing the reciprocating square tube 8 to vibrate. This vibration can shake off the sand and gravel attached to the inside of the reciprocating square tube 8, causing it to fall into the inside of the housing 1 under the action of gravity. With the reciprocating motion of the reciprocating square tube 8, the dispersion mechanism cooperates with multiple groups of inclined blocks 26 to make the vibration rod 24 intermittently hit the reciprocating square tube 8, thereby achieving a better vibration effect.

[0056] When the reciprocating square tube 8 moves, it will drive the L plate 27 and the second guide rod 28 to move synchronously. During the movement of the L plate 27, it will drive the support plate 29 and the displacement rod 31 to move. When the displacement rod 31 moves to one end distance, the displacement rod 31 will squeeze the inclined surface of a group of inclined blocks 26. The displacement rod 31 will be forced to drive the support plate 29 to move upward. The upward movement of the support plate 29 pulls the vibration rod 24 upward and squeezes the spring 30, causing it to deform under force. When the displacement rod 31 passes over a group of inclined blocks 26, the reaction force applied by the inclined blocks 26 to the displacement rod 31 ends, and the spring 30 ends the force, and then releases the elastic potential energy, driving the vibration rod 24 to move downward through the support plate 29 to hit the outer side of the reciprocating square tube 8, thereby causing the reciprocating square tube 8 to vibrate. The displacement rod 31 also moves downward synchronously with the downward movement of the support plate 29. Therefore, every time the displacement rod 31 passes over a group of inclined blocks 26, the vibration rod 24 will hit the reciprocating square tube 8 once, thereby achieving the function of intermittent impact.

[0057] When sand and gravel enter the interior of the housing 1, the sand and gravel will generate a lot of dust, and when the hammer head 3 crushes the sand and gravel, dust will also be generated, which will affect the service life of the device and cause serious wear of the equipment. When the embodiment of the present invention is in use, the dust suction mechanism is designed to absorb the dust generated inside the housing 1. During the adsorption process, large particles will be blocked by the filter screen 32 and cannot pass through the filter screen 32, thereby effectively realizing the dust absorption function. This design avoids a large amount of dust floating inside the housing 1, ensuring the cleanliness of the working environment. At the same time, when the dust suction mechanism is running, it will also drive the linkage mechanism to work together. Since impurities in the sand and gravel will inevitably accumulate on the surface of the filter screen 32 during the dust suction process, the operation of the linkage mechanism is particularly important. It will drive the first blade 33 to continuously rotate in contact with the surface of the filter screen 32, thereby scraping off the attached impurities. This mechanism improves the dust passing rate of the filter screen 32 and effectively avoids the low working efficiency caused by impurities blocking the filter screen 32.

[0058] When the industrial vacuum cleaner is started, the dust inside the housing 1 is absorbed through the dust conveying pipe 36, and the dust inside the housing 1 enters the interior of the dust conveying pipe 36 through the filter 32, and finally enters the interior of the industrial vacuum cleaner through the dust conveying pipe 36;

[0059] Industrial vacuum cleaners are existing technologies, and the technology is mature, so they will not be elaborated in detail in the present invention;

[0060] The internal air of the dust conveying pipe 36 will drive the second blade 38 to rotate under the operation of the industrial vacuum cleaner and the flow of dust. The rotation of the second blade 38 will drive the third transmission rod 39 to rotate. The rotation of the third transmission rod 39 will drive the second spur gear 41 to rotate synchronously through the first spur gear 40. The rotation of the second spur gear 41 will drive the first blade 33 to rotate in contact with the surface of the filter 32 through the second transmission rod 34, thereby scraping off impurities attached to the surface of the filter 32.

[0061] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A crushing device for sand and gravel screening, comprising a shell (1) and a base screen plate (2), wherein the base screen plate (2) is fixedly connected to the bottom end of the shell (1), a hammer head (3) is arranged inside the shell (1), a first transmission rod (4) is fixedly connected inside the hammer head (3), two ends of the first transmission rod (4) pass through two sides of the shell (1), a motor (5) is installed at the top end of the base screen plate (2), a first pulley (6) is fixedly connected to the output end of the motor (5), a second pulley (7) is fixedly connected to the outer side of the first transmission rod (4), a belt is wound between the first pulley (6) and the second pulley (7), and the characteristics are as follows: The crushing device also includes: A reciprocating square tube (8), one end of which is arranged inside the outer shell (1), a first guide plate (9) is fixedly connected to the outer side of the reciprocating square tube (8), a pair of first guide rods (10) are slidably connected inside the first guide plate (9), both ends of the pair of first guide rods (10) are fixedly connected to first fixing plates (11), and the pair of first fixing plates (11) are fixedly connected to both sides of the outer shell (1), and a reciprocating mechanism for driving the reciprocating square tube (8) to move horizontally is arranged on the periphery of the reciprocating square tube (8); A transmission mechanism is arranged between the reciprocating mechanism and the first transmission rod (4), and is used to provide a power source for the reciprocating mechanism.

2. The crushing device for sand and gravel screening according to claim 1 is characterized in that: The reciprocating mechanism comprises a ring plate (12), a push rod (13), a rotating disk (14), a fixed rod (15), a second fixed plate (16), a first bevel gear (17), a second bevel gear (18), a limit rod (58), a limit tube (19) and a pair of support rods (20), wherein the ring plate (12) is fixedly connected to a side of the reciprocating square tube (8) away from the first guide plate (9), the push rod (13) is slidably connected to the inside of the ring plate (12), an end of the push rod (13) away from the ring plate (12) is fixedly connected to the rotating disk (14), an end of the rotating disk (14) away from the push rod (13) is fixedly connected to the fixed rod (15), and the fixed rod (15) away from the rotating disk (14) is fixedly connected to the fixed rod (15). One end of the disk (14) is rotatably connected to the inner side of the second fixing plate (16); one end of the second fixing plate (16) away from the fixing rod (15) is fixedly connected to the outer side of the housing (1); the first bevel gear (17) is fixedly connected to the outer side of the fixing rod (15); the second bevel gear (18) is meshed with the first bevel gear (17); the second bevel gear (18) is fixedly connected to the outer side of the limiting rod (58); the limiting tube (19) is sleeved on the outer side of the limiting rod (58); a pair of support rods (20) are fixedly connected to the outer side of the limiting tube (19); and one end of the pair of support rods (20) away from the limiting tube (19) is fixedly connected to the outer side of the housing (1).

3. The crushing device for sand and gravel screening according to claim 2, characterized in that: The transmission mechanism comprises a first sprocket (21), a second sprocket (22) and a chain (23); the first sprocket (21) is fixedly connected to the outer side of an end of the first transmission rod (4) away from the second pulley (7); the second sprocket (22) is fixedly connected to the outer side of an end of the limiting rod (58) away from the second bevel gear (18); and the chain (23) is wound around the outer sides of the first sprocket (21) and the second sprocket (22).

4. The crushing device for sand and gravel screening according to claim 3 is characterized in that: A vibration rod (24) is provided on one side of the reciprocating square tube (8) close to the first guide plate (9), and the vibration rod (24) is in close contact with the reciprocating square tube (8). A side plate (25) is fixedly connected to the outer side of the shell (1), and a plurality of groups of inclined blocks (26) are fixedly connected to the top end of the side plate (25). The inclined blocks (26) are of a "triangular" design. A dispersion mechanism that cooperates with the inclined blocks (26) is provided on the periphery of the vibration rod (24), and the dispersion mechanism is used to vibrate the reciprocating square tube (8).

5. The crushing device for sand and gravel screening according to claim 4, characterized in that: The dispersion mechanism comprises a pair of L plates (27), a pair of second guide rods (28), a support plate (29), a pair of springs (30) and a displacement rod (31). The pair of L plates (27) are fixedly connected to both sides of the reciprocating square tube (8). The pair of second guide rods (28) are fixedly connected to a side of the reciprocating square tube (8) close to the vibration rod (24). One end of the pair of second guide rods (28) away from the reciprocating square tube (8) is fixedly connected to the inner side of the pair of L plates (27). The support plate (29) is fixedly connected to a side of the vibration rod (24) away from the reciprocating square tube (8). The pair of second guide rods (28) are respectively sleeved on the outer sides of the pair of second guide rods (28); the pair of springs (30) are respectively fixedly connected to the end of the support plate (29) away from the vibration rod (24); the ends of the pair of springs (30) away from the support plate (29) are respectively fixedly connected to the inner sides of the pair of L plates (27); the displacement rod (31) is fixedly connected to the outer side of the support plate (29); and the end of the displacement rod (31) away from the support plate (29) is arranged at the top end of the side plate (25).

6. The crushing device for sand and gravel screening according to claim 5, characterized in that: A dust suction groove is provided on a side of the shell (1) away from the second pulley (7), a filter screen (32) is installed inside the dust suction groove, a first blade (33) is provided on the inner side of the shell (1), and the first blade (33) is in contact with the inner side of the shell (1) close to the filter screen (32), a second transmission rod (34) is fixedly connected inside the first blade (33), an end of the second transmission rod (34) away from the first blade (33) passes through the shell (1) and extends to the outer side of the shell (1), an end of the second transmission rod (34) away from the first blade (33) is rotatably connected to a third fixing plate (35), an end of the third fixing plate (35) away from the second transmission rod (34) is fixedly connected to the outer side of the shell (1), a dust suction mechanism for absorbing dust inside the shell (1) is provided on the outer side of the filter screen (32), and a linkage mechanism cooperating with the first blade (33) is provided on the periphery of the dust suction mechanism.

7. The crushing device for sand and gravel screening according to claim 6, characterized in that: The dust collection mechanism comprises a dust conveying pipe (36) and an industrial dust collector. The dust conveying pipe (36) is fixedly connected to the outside of the housing (1), and the diameter of the dust conveying pipe (36) is larger than the diameter of the filter screen (32). The industrial dust collection mechanism is installed at one end of the dust conveying pipe (36) away from the filter screen (32).

8. The crushing device for sand and gravel screening according to claim 7, characterized in that: The linkage mechanism comprises a rotating groove, a mounting box (37), a second blade (38), a third transmission rod (39), a first spur gear (40) and a second spur gear (41); the rotating groove is arranged on the outside of the dust conveying pipe (36); the mounting box (37) is fixedly connected to the outside of the dust conveying pipe (36); the second blade (38) is arranged inside the mounting box (37) and the dust conveying pipe (36); the inside of the second blade (38) is fixedly connected to the third transmission rod (39); the third transmission rod (39) One end of the third transmission rod (39) is rotatably connected to the outer side of the housing (1); one end of the third transmission rod (39) away from the housing (1) passes through a side of the installation box (37) close to the housing (1); and the third transmission rod (39) is rotatably connected to the inner wall of the installation box (37) away from the housing (1); the first spur gear (40) is fixedly connected to the outer side of the third transmission rod (39); the second spur gear (41) is meshed with the first spur gear (40); and the second spur gear (41) is fixedly connected to the outer side of the second transmission rod (34).

Images