A heavy hammer type crusher for crushing construction waste

Abstract

The application belongs to the technical field of building engineering, and discloses a heavy hammer type crusher for crushing construction waste, which comprises a box body, crushing hammer mechanisms and two groups of impact plates installed on the box body, and further comprises an inner protection mechanism installed on the box body, a separation grid is hinged to the protection mechanism, and a rotary feeding mechanism for feeding materials on the separation grid into a cavity of the box body is further installed on the box body.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, in particular to a heavy hammer crusher for crushing construction waste. Background Art

[0002] A heavy hammer crusher is a mechanical device that uses a high-speed rotating heavy hammer to impact and crush materials.

[0003] During operation, material enters the crushing chamber through the feed inlet. Driven by the motor, the rotor rotates at high speed, driving the heavy hammers suspended above it to generate enormous kinetic energy. This impact impacts the material blocks that fall into the crushing chamber, instantly crushing them. The crushed material, then gaining kinetic energy, flies at high speed toward the counter-impact plate, where it is crushed a second time. This method of efficiently crushing material using impact energy typically consumes less energy per unit and is more efficient than solutions that require multiple crushing stages or ball mills. However, since material is generally discharged from the bottom of the crusher chamber onto a conveyor belt, the high-speed rotation of the rotor can carry crushed material blocks and impact them onto the conveyor belt, which can easily damage the conveyor belt.

[0004] Therefore, operators also install an inclined metal baffle at the bottom of the crusher chamber to absorb the kinetic energy of the material during the discharge process to prevent damage to the conveyor belt. However, this solution also causes the metal baffle to deform, causing material to accumulate on it. This leads to problems such as material clogging the bottom of the crusher and requiring frequent baffle replacement. Summary of the Invention

[0005] The object of the present invention is to provide a heavy hammer crusher for crushing construction waste, which solves the problem of material accumulation caused by damage to the conveyor belt or deformation of the metal baffle when the crushed material blocks are discharged.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a heavy hammer crusher for crushing construction waste, comprising a housing, a crushing hammer mechanism and two sets of strike plates mounted thereon, and further comprising: an inner protection mechanism mounted on the housing, a separation grid hingedly connected to the protection mechanism, and a rotary feeding mechanism mounted on the housing for feeding material on the separation grid into the housing cavity;

[0007] The protection mechanism includes a guide plate and a partition plate fixed to the box body. The partition plate has a plurality of discharge channels at the corners. The material can pass through the guide plate surface and the discharge channels and slide onto the partition plate. The bottom of the partition plate is hinged with an elastic guard plate.

[0008] The separation grille is hinged to the top of the guide plate, and the separation grille is tilted downward and toward the rotating feeding mechanism;

[0009] The height of the bottom end of the striking plate located below is higher than that of the elastic guard plate.

[0010] Preferably, the breaker hammer mechanism comprises a motor, a transmission belt and a weight rotor;

[0011] The weight rotor bearing is connected to the box cavity, and the rotating shaft of the weight rotor extends to the outside of the box. The motor is fixedly installed outside the box, and the output shaft end of the motor is connected to the rotating shaft end of the weight rotor through a transmission belt.

[0012] Preferably, separation plates are fixedly connected to the concave arc side of the partition plate at equal intervals; the bottom end of the separation plate extends to the bottom of the weight rotor shaft, and the bottoms of several separation plates are staggered with the weights on the weight rotor.

[0013] Preferably, a plurality of flanges are equidistantly arranged on the elastic guard plate.

[0014] Preferably, the elastic guard plate consists of a guard plate body and a spring damping rod, wherein the guard plate body is hinged to the bottom of the partition plate, and both ends of the spring damping rod are fixedly connected to the bottom of the partition plate and the bottom of the elastic guard plate respectively.

[0015] Preferably, a group of arc-shaped grooves are symmetrically provided on the box body, and a group of convex shafts are symmetrically fixed to the end of the separation grille close to the rotary feeding mechanism. One end of the convex shaft passes through the arc-shaped groove and extends to the outside of the box body and is hinged to connecting rod 1. The shaft part of the elastic guard plate extends to the outside of the box body and is fixed to connecting rod 2, and the other end of connecting rod 2 is hinged to the bottom end of connecting rod 1.

[0016] Preferably, an arc-shaped partition plate is fixedly connected to the convex shaft and is in contact with the inner wall of the box body. The arc-shaped partition plate can block the communication between the box body cavity and the arc-shaped groove.

[0017] Preferably, the rotary feeding mechanism includes a roller shaft hinged on the box body and semi-fitted with the top of the partition plate, circular plates are movably sleeved on both ends of the roller shaft, and the circular plates are fixedly connected to the inner wall of the box body, a guide groove is provided on the circular plate, two groups of shift forks are equidistantly slidably connected to the roller shaft, a group of connecting shafts are movably connected in the roller shaft, and the connecting shafts are fixedly connected to the corresponding group of shift forks;

[0018] The rotary feeding mechanism further includes a second transmission belt, the shaft of the weight rotor is connected to the shaft of the roller shaft through the second transmission belt, and the diameter of the transmission wheel connected to the second transmission belt is larger than the diameter of the transmission wheel connected to the motor;

[0019] The end of the connecting shaft can move along the guide groove, so that the shift fork rotates to the top of the roller shaft and is in a vertical state and then gradually retracts into the roller shaft; after the shift fork rotates to the bottom of the roller shaft, the end of the shift fork can be gradually pushed outward.

[0020] Preferably, the guide groove includes an outer arc groove, a hook groove, an inner arc groove and a return groove formed on the circular plate;

[0021] The radius of the outer arc groove is greater than the radius of the inner arc groove. One end of the outer arc groove is connected through a hook groove, and the other end of the outer arc groove is connected with the inner arc groove through a return groove.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The above scheme separates the materials with diameters smaller than the gap of the separation grid through the separation grid, and then the materials slide down through the guide plate, discharge channel, partition plate and elastic guard plate. The crushed materials will be discharged through the bottom of the impact plate below and fall on the elastic guard plate, thereby colliding with the materials that slide from the guide plate to the elastic guard plate, reducing the probability of the crushed high-speed flying materials directly colliding with the conveyor belt or metal baffle below and causing damage to the equipment.

[0024] The above scheme causes the crushed material to hit the elastic guard plate to rotate around the axis, thereby pushing the separation grille to intermittently rotate around the axis through connecting rod 2, connecting rod 1 and cam shaft to achieve rapid shaking, thereby driving the effect of rapid screening of materials, and then increasing the amount of material that can slide through the guide plate to the elastic guard plate to improve the protective effect of the elastic guard plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a front cross-sectional structural diagram of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the strike plate of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the protection mechanism of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the breaker hammer mechanism of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the rotary feeding mechanism of the present invention;

[0031] Figure 7 A perspective view of a guide groove on a circular plate of the present invention;

[0032] Figure 8 A perspective view of one of the retaining grilles of the present invention being returned to its original position;

[0033] Figure 9 This is a perspective view of a retracted barrier screen according to the present invention.

[0034] In the figure: 1. Box body; 11. Strike plate; 12. Arc groove; 2. Breaking hammer mechanism; 21. Motor; 22. Transmission belt 1; 23. Heavy hammer rotor; 3. Protection mechanism; 31. Guide plate; 32. Partition plate; 321. Separation plate; 33. Discharge channel; 34. Elastic guard plate; 341. Flange; 4. Separation grid; 41. Protruding shaft; 411. Arc partition; 42. Connecting rod 1; 43. Connecting rod 2; 5. Rotary feeding mechanism; 51. Roller; 52. Round plate; 521. Outer arc groove; 522. Hook groove; 523. Inner arc groove; 524. Return groove; 53. Shift fork; 54. Connecting shaft; 55. Transmission belt 2. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0036] Example 1

[0037] This embodiment provides a technical solution: a heavy hammer crusher for crushing construction waste, such as Figures 1-5 As shown, it includes a box body 1 and a breaker hammer mechanism 2 and two sets of strike plates 11 installed thereon, and also includes: an inner protection mechanism 3 installed on the box body 1, a separation grid 4 is hingedly connected to the protection mechanism 3, and a rotating feeding mechanism 5 is also installed on the box body 1 for feeding the material on the separation grid 4 into the cavity of the box body 1;

[0038] The protection mechanism 3 includes a guide plate 31 and a partition plate 32 fixed to the box body 1. The partition plate 32 has a plurality of discharge channels 33 at the corners. Materials can pass through the surface of the guide plate 31 and the discharge channels 33 and slide onto the partition plate 32. The bottom of the partition plate 32 is hinged with an elastic guard plate 34.

[0039] The breaker hammer mechanism 2 includes a motor 21, a transmission belt 22, and a weight rotor 23; the weight rotor 23 is connected to the cavity of the housing 1 by a bearing, and the rotating shaft of the weight rotor 23 extends to the outside of the housing 1. The motor 21 is fixedly mounted outside the housing 1, and the output shaft end of the motor 21 is connected to the rotating shaft end of the weight rotor 23 by a transmission belt 22.

[0040] The separation grille 4 is hinged to the top of the guide plate 31 and is tilted downward and toward the rotary feeding mechanism 5 ; the bottom end of the impact plate 11 below is higher than the height of the elastic guard plate 34 .

[0041] like Figures 1-4As shown, separation plates 321 are fixedly connected to the concave arc side of the partition plate 32 at equal intervals; the bottom end of the separation plate 321 extends to the bottom of the shaft part of the weight rotor 23, and the bottoms of several separation plates 321 are staggered with the weights on the weight rotor 23.

[0042] like Figures 1-4 As shown, a number of flanges 341 are equidistantly arranged on the elastic guard plate 34. The elastic guard plate 34 consists of a guard plate body and a spring damping rod, wherein the guard plate body is hinged to the bottom of the partition plate 32, and the two ends of the spring damping rod are fixedly connected to the bottom of the partition plate 32 and the bottom of the elastic guard plate 34 respectively.

[0043] When in use, the material slides along the top of the separation grid 4, so that the material with a diameter larger than the diameter of the grid gap of the separation grid 4 is retained on the separation grid 4 and transported to the cavity of the box 1 through the rotating feeding mechanism 5 for crushing, while the material with a diameter smaller than the grid gap of the separation grid 4 passes through the separation grid 4 and falls on the guide plate 31, passes through the discharge channel 33 and slides along the bottom of the partition plate 32 and the elastic guard plate 34;

[0044] During crushing, the high-speed rotation of the hammer rotor 23 crushes the material. Simultaneously, the material is impacted and rebounds onto the strike plate 11, where it is crushed again. Finally, the material is discharged through the bottom of the strike plate 11 and lands on the elastic guard plate 34. There, it collides with the material that has slid from the guide plate 31 onto the elastic guard plate 34, reducing the probability of the high-speed material directly colliding with the conveyor belt or metal baffle below, causing damage to the equipment. Finally, the material falls through the elastic guard plate 34 onto the conveyor belt below for transportation.

[0045] As attached Figures 3-5 When the weight part on the weight rotor 23 rotates to the bottom of the shaft part of the weight rotor 23, in order to prevent the weight from carrying part of the material back into the cavity of the box 1 for crushing again, when the weight passes through the gap between the separation plates 321, the separation plates 321 will block the re-entry of the material, thereby preventing the equipment from shutting down due to excessive accumulation of material in the cavity of the box 1, thereby improving the stability of the equipment.

[0046] As attached Figure 3 and Figure 4 By opening the flange 341, when the material slides through the guide plate 31 and the partition plate 32 to the elastic guard plate 34, the flange 341 can prevent the material from sliding quickly through the elastic guard plate 34, thereby ensuring that the material thrown out by the hammer after being crushed by the impact plate 11 can hit the material remaining on the elastic guard plate 34 and improve the protection effect of the elastic guard plate 34.

[0047] When the plate portion of the elastic guard plate 34 is hit by the material, it will also rotate and absorb part of the impact force through the spring damping rod, thereby further improving the protection effect of the elastic guard plate 34 to avoid damage and deformation thereof.

[0048] Example 2

[0049] This embodiment is further optimized on the basis of the first embodiment, and the same parts as the above technical solutions will not be repeated here. In order to better implement the present invention, the following configuration is particularly adopted: Figures 1-4 As shown, a group of arc-shaped grooves 12 are symmetrically provided on the box body 1, and a group of convex shafts 41 are symmetrically fixed to the end of the separation grille 4 near the rotary feeding mechanism 5. One end of the convex shaft 41 passes through the arc-shaped groove 12 and extends to the outside of the box body 1 and is hinged with a connecting rod 1 42. The axial part of the elastic guard plate 34 extends to the outside of the box body 1 and is fixed with a connecting rod 2 43, and the other end of the connecting rod 2 43 is hinged to the bottom end of the connecting rod 1 42. An arc-shaped partition 411 that fits the inner wall of the box body 1 is fixed on the convex shaft 41, and the arc-shaped partition 411 can block the connection between the cavity of the box body 1 and the arc-shaped groove 12.

[0050] Figures 1-4 During use, the elastic guard plate 34 is impacted by the crushed material, causing it to continuously or intermittently rotate downward about its axis, thereby driving the second connecting rod 43 to rotate and, through it, pushing the first connecting rod 42 and the cam 41 upward along the arc-shaped groove 12, ultimately causing the bottom end of the separation grille 4 to move upward. At the same time, under the elastic force of the spring damping rod portion of the elastic guard plate 34 and the gravity of the material on the separation grille 4, the cam 41 and the elastic guard plate 34 will quickly reset. As the elastic guard plate 34 continues to be impacted by the material, the separation grille 4 continues to vibrate, thereby achieving the effect of quickly screening the material, thereby increasing the amount of material that can slide through the guide plate 31 and onto the elastic guard plate 34, thereby improving the protective effect of the elastic guard plate 34.

[0051] It is worth noting that the provision of the arc-shaped partition 411 prevents the material from entering the arc-shaped groove 12 and causing the upward path of the convex shaft 41 to be blocked, thereby ensuring the stability of the equipment operation.

[0052] Example 3: This example is further optimized on the basis of Example 1. The same parts as the above technical solutions will not be repeated here. In order to better implement the present invention, the following setting is particularly adopted: Figures 1-3 and Figures 5-9As shown, the rotary feeding mechanism 5 includes a roller shaft 51 hinged on the box body 1 and semi-fitted with the top of the partition plate 32. Circular plates 52 are movably sleeved on both ends of the roller shaft 51. The circular plates 52 are fixedly connected to the inner wall of the box body 1. Guide grooves are provided on the circular plates 52. Two sets of shift forks 53 are equidistantly slidably connected to the roller shaft 51. A set of connecting shafts 54 are movably connected inside the roller shaft 51. The connecting shafts 54 are fixedly connected to the corresponding set of shift forks 53.

[0053] The rotary feeding mechanism 5 also includes a second transmission belt 55, through which the shaft of the weight rotor 23 is connected to the shaft of the roller 51, and the diameter of the transmission wheel connected to the second transmission belt 55 is larger than the diameter of the transmission wheel connected to the motor 21;

[0054] The end of the connecting shaft 54 ​​can move along the guide groove, so that the fork 53 rotates to the top of the shaft body of the roller shaft 51 and is in a vertical state and then gradually retracts into the roller shaft 51; after the fork 53 rotates to the bottom of the shaft body of the roller shaft 51, the end of the fork 53 can be gradually pushed outward.

[0055] The guide groove includes an outer arc groove 521, a hook groove 522, an inner arc groove 523 and a return groove 524 opened on the circular plate 52; the radius of the outer arc groove 521 is greater than the radius of the inner arc groove 523, one end of the outer arc groove 521 is connected through the hook groove 522, and the other end of the outer arc groove 521 is connected to the inner arc groove 523 through the return groove 524.

[0056] like Figures 5-9 When loading, the rotation of the weight rotor 23 will drive the roller 51 to rotate at a reduced speed through the transmission belt 2 55, and the roller 51 will drive the shift fork 53 and the connecting shaft 54 ​​to rotate around the axis. At the same time, the connecting shaft 54 ​​will move along the outer arc groove 521. At this time, one end of the shift fork 53 is outside the roller 51 and can receive the material above it when passing through the separation grid 4. After the shift fork 53 is rotated to the top of the roller 51 and kept in a vertical state, the material will fall along the outer wall of the roller 51 into the cavity of the box 1 and be crushed by the weight rotor 23. The shift fork 53 continues to rotate around the axis, and the connecting shaft 54 ​​rotates along the hook groove 522, thereby driving the shift fork 53 to be completely retracted into the roller shaft 51. When the connecting shaft 54 ​​moves in the inner arc groove 523, the shift fork 53 remains in the roller shaft 51 until the connecting shaft 54 ​​moves along the return groove 524. The shift fork 53 is pushed outward and the feeding effect is achieved again. This method realizes the quantitative and intermittent feeding of materials, ensures that the materials in the box body 1 can be fully crushed, and avoids the accumulation of materials at the bottom of the box body 1.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heavy hammer crusher for crushing construction waste, comprising a housing (1), a crushing hammer mechanism (2) and two sets of strike plates (11) mounted thereon, characterized in that: Also includes: An internal protection mechanism (3) installed on the box body (1), a separation grid (4) being hingedly connected to the protection mechanism (3), and a rotary feeding mechanism (5) for feeding material on the separation grid (4) into the cavity of the box body (1) also being installed on the box body (1); The protection mechanism (3) includes a guide plate (31) and a partition plate (32) fixed to the box body (1); a plurality of discharge channels (33) are provided at the corners of the partition plate (32); materials can pass through the surface of the guide plate (31) and the discharge channels (33) and slide onto the partition plate (32); an elastic guard plate (34) is hinged at the bottom of the partition plate (32); The separation grid (4) is hinged to the top of the guide plate (31), and the separation grid (4) is tilted downward and toward the rotating feeding mechanism (5); The bottom end of the strike plate (11) located below has a height higher than that of the elastic guard plate (34); The rotary feeding mechanism (5) comprises a roller shaft (51) hinged on the box body (1) and semi-fitted with the top of the partition plate (32), circular plates (52) are movably sleeved on both ends of the roller shaft (51), and the circular plates (52) are fixedly connected to the inner wall of the box body (1), and a guide groove is provided on the circular plate (52), two groups of shift forks (53) are equidistantly slidably connected to the roller shaft (51), and a group of connecting shafts (54) are movably connected inside the roller shaft (51), and the connecting shafts (54) are fixedly connected to the corresponding group of shift forks (53); The rotary feeding mechanism (5) further includes a second transmission belt (55), the breaker hammer mechanism (2) includes a weight rotor (23), the shaft of the weight rotor (23) is connected to the shaft of the roller shaft (51) through the second transmission belt (55), and the diameter of the transmission wheel connected to the second transmission belt (55) is larger than the diameter of the transmission wheel connected to the motor (21); The end of the connecting shaft (54) can move along the guide groove, so that the shift fork (53) rotates to the upper part of the shaft body of the roller shaft (51) and is in a vertical state and then gradually retracts into the roller shaft (51); after the shift fork (53) rotates to the lower part of the shaft body of the roller shaft (51), the end of the shift fork (53) can be gradually pushed outward.

2. The heavy hammer crusher for crushing construction waste according to claim 1, characterized in that: The breaker hammer mechanism (2) includes a motor (21), a transmission belt (22) and a weight rotor (23); The bearing of the weight rotor (23) is connected to the cavity of the box (1), and the rotating shaft portion of the weight rotor (23) extends to the outside of the box (1). The motor (21) is fixedly installed outside the box (1), and the output shaft end of the motor (21) is connected to the rotating shaft end of the weight rotor (23) through a transmission belt (22).

3. The heavy hammer crusher for crushing construction waste according to claim 2, characterized in that: Separation plates (321) are fixedly connected at equal intervals on the concave arc side of the partition plate (32); the bottom end of the separation plate (321) extends below the shaft portion of the weight rotor (23), and the bottoms of several separation plates (321) are staggered with the weights on the weight rotor (23).

4. The heavy hammer crusher for crushing construction waste according to claim 1, characterized in that: A plurality of flanges (341) are equidistantly arranged on the elastic guard plate (34).

5. The heavy hammer crusher for crushing construction waste according to claim 4, characterized in that: The elastic guard plate (34) consists of a guard plate body and a spring damping rod, wherein the guard plate body is hinged to the bottom of the partition plate (32), and the two ends of the spring damping rod are fixedly connected to the bottom of the partition plate (32) and the bottom of the elastic guard plate (34), respectively.

6. The heavy hammer crusher for crushing construction waste according to claim 1, characterized in that: A group of arcuate grooves (12) are symmetrically provided on the box body (1), and a group of convex shafts (41) are symmetrically fixed to the end of the separation grid (4) near the rotary feeding mechanism (5), one end of the convex shaft (41) passes through the arcuate groove (12) and extends to the outside of the box body (1) and is hinged to a connecting rod 1 (42), the shaft portion of the elastic guard plate (34) extends to the outside of the box body (1) and is fixed to a connecting rod 2 (43), and the other end of the connecting rod 2 (43) is hinged to the bottom end of the connecting rod 1 (42).

7. The heavy hammer crusher for crushing construction waste according to claim 6, characterized in that: The convex shaft (41) is fixedly connected to an arc-shaped partition (411) that is in contact with the inner wall of the box body (1). The arc-shaped partition (411) can block the communication between the cavity of the box body (1) and the arc-shaped groove (12).

8. The heavy hammer crusher for crushing construction waste according to claim 1, characterized in that: The guide groove comprises an outer arc groove (521), a hook groove (522), an inner arc groove (523) and a return groove (524) formed on the circular plate (52); The radius of the outer arc groove (521) is greater than the radius of the inner arc groove (523), one end of the outer arc groove (521) is connected via the hook groove (522), and the other end of the outer arc groove (521) is connected to the inner arc groove (523) via the return groove (524).

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