A hammer bag breaking device for a construction waste bag opening machine

Abstract

The invention discloses a hammer bag breaking device for a building waste bag opener. The hammer bag breaking device includes a chassis, a transmission device and a hammer cutter disc. The upper left end of the crushing chamber of the chassis is provided with a feed port and the lower side is open to form a discharge port. The main seat of the transmission device is fixed on the first through hole and the lower end enters the crushing chamber. The driving shaft is rotatably connected to the main seat. The motor wheel is connected to the extended shaft of the main motor of the driving assembly. The motor wheel is connected to the passive wheel through an intermediate piece. The passive wheel is connected to the upper end of the driving shaft. The two ends of the main seat and the driving shaft are connected and sealed through a dynamic sealing ring. The driving shaft and the hammer shaft are connected through a flange. The turntable key of the hammer cutter disc is connected to the hammer shaft. The inner circumference of the annular groove of the turntable is provided with a plurality of cutter shafts. Each cutter shaft is connected to the hammer cutter head through a circular chain. The hammer cutter head is provided with an arc-shaped cutting edge. The present invention has the effect of completely destroying the packaging bag, without the entanglement of soft materials, and the sealing structure can effectively protect the parts.

Description

Technical Field

[0001] The invention relates to a building bag opening device, in particular to a hammer bag breaking device of a building waste bag opening machine. Background Art

[0002] In an era of increasing urbanization, cities are building a large number of new buildings and demolishing old and dilapidated buildings every day, which generates a large amount of construction waste. Construction waste occupies a large amount of land and affects the appearance of the city, so it needs to be handled in a timely manner. In order to facilitate handling and transportation, a lot of construction waste is loaded in packaging bags and transported by vehicles to waste collection areas for classification and crushing. Before the waste is handled, the garbage bags need to be quickly and efficiently destroyed, and then the garbage enters the sorting line;

[0003] Manual bag opening is slow and inefficient, so an automated bag opening machine was developed. Existing bag opening often uses a straight line method, which is prone to poor cutting and affects subsequent sorting. In addition, the transmission device of the existing bag opening device is easily disturbed by dust or winding belts in the construction waste, resulting in poor rotation. Summary of the invention

[0004] In order to solve one or more of the above problems, the present invention provides a bag-breaking device for a building waste bag-opening machine.

[0005] According to one aspect of the present invention, the hammer bag breaking device comprises a chassis, a transmission device and a hammer cutter disc.

[0006] The inside of the chassis is hollow to form a crushing chamber, the upper left end of the crushing chamber is provided with a feed inlet and the lower side is open to form a discharge port, a first through hole is formed in the middle of the upper box plate of the crushing chamber and extends to the right to form a supporting ear plate,

[0007] The transmission device includes a driving assembly, a driving shaft and a main seat; the main seat is fixed on the first through hole and the lower end enters the crushing chamber, the driving shaft is rotatably connected to the main seat, the main motor of the driving assembly is inverted and vertically connected to the supporting ear plate, the extended shaft of the main motor is connected to the motor wheel, the motor wheel is connected to the passive wheel through the middle piece, and the passive wheel is connected to the upper end of the driving shaft, wherein the two ends of the main seat and the driving shaft are respectively connected and sealed by the first dynamic sealing ring and the second dynamic sealing ring, and the lower end of the driving shaft is fixed with a flange.

[0008] The hammer cutter disc includes a hammer shaft, a turntable and several hammer cutter heads. The input disc at the upper end of the hammer shaft is threadedly connected to the flange, and the turntable key is connected to the hammer shaft.

[0009] The circumferential wall of the turntable is concave to form a circular groove, and retaining rings are formed on both sides of the circular groove. Several knife shafts are fixed on the retaining rings in a circular array. In the circular groove, one end of a circular ring chain is sleeved on each knife shaft, and the other end of the circular ring chain is rotatably connected to the earring. The earring is vertically connected to the rear wall of the knife body of the hammer cutter head, and the outer wall of the knife body is provided with an arc-shaped cutting edge.

[0010] In some embodiments, the driving assembly further comprises a motor seat in the shape of a rectangular frame, the interior of the motor seat is hollow to form a transmission cavity, and the intermediate piece, the motor wheel, and the driven wheel are located in the transmission cavity;

[0011] The left reinforcing plate and the right reinforcing plate are fixed on the supporting ear plate. Under the supporting ear plate, two reinforcing foot plates are respectively vertically connected to the supporting ear plate and the upper end of the side wall plate of the chassis.

[0012] In some embodiments, the adjustment assembly includes an adjustment bolt, an adjustment nut and an adjustment block. The adjustment block is welded and fixed to the upper surface of the chassis. The adjustment bolt is threaded and fixed in the threaded hole of the adjustment block. Two adjustment nuts are provided on the adjustment bolt. The two adjustment nuts are respectively fixed on both sides of the adjustment block. The front end of the adjustment bolt is tightened against the outer side of the left reinforcement plate and the right reinforcement plate.

[0013] In some embodiments, a buffer pad is further provided between the input disc and the flange.

[0014] In some embodiments, the main seat includes a cylindrical seat body, with a first bearing hole formed at each end of the seat body, a second bearing hole with a small diameter is provided under the first bearing hole at the upper end, a main bearing is fixed in each first bearing hole, and a thrust bearing is fixed in the second bearing hole, and the driving shaft is rotatably connected to the two main bearings and the thrust bearing respectively.

[0015] An upper positioning pressure ring is formed on the lower surface of the upper bearing end cover, and the upper positioning pressure ring fits the upper surface of the outer ring of the main bearing. A lower positioning pressure ring is formed on the upper surface of the lower bearing end cover, and the lower positioning pressure ring fits the lower surface of the outer ring of the main bearing.

[0016] In some embodiments, the upper end of the lower cover hole is concave to form a lower sealing groove with a large diameter, and a second dynamic sealing ring is arranged in the lower sealing groove; the upper surface of the upper cover hole is concave to form an upper sealing groove, and a first dynamic sealing ring is arranged in the upper sealing groove; a sealing hole with a small diameter is also formed at the lower end of the second bearing hole, and two rotating floating sealing rings are installed in the sealing hole.

[0017] In some embodiments, one retaining ring has a plurality of first connecting holes arranged in a circular array, and another retaining ring has a plurality of second connecting holes arranged in a circular array. Each second connecting hole and the corresponding first connecting hole fix a knife shaft; a cemented carbide annular sleeve is fixed to the cylindrical upper sleeve of the knife shaft.

[0018] In some embodiments, a thin arc-shaped cutting edge is provided on the front side and the middle of the left and right sides of the knife body, and the knife body is formed with a supporting surface on the upper and lower sides of the cutting edge;

[0019] The blade height distance between the middle protruding position of the cutting edge and the supporting surface is 5 mm.

[0020] In some embodiments, the earring includes a semicircular ring, both ends of which extend outward to form end columns, and the end columns and the semicircular ring surround each other to form a U-shaped hole; two plug holes are provided on the rear side of the knife body, and the plug holes and the end columns are interference fit. After the end columns are inserted into the plug holes, the end columns and the rear side of the knife body are welded into one.

[0021] In some embodiments, longitudinal and transverse reinforcing braces are provided on the outer side of the outer plate of the chassis, and an inner lining plate is provided under the inner side of the outer plate of the chassis, and a plurality of obliquely arranged guide plates are threadedly connected to the inner lining plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a hammer bag breaking device of a construction waste bag opening machine according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic cross-sectional view of a hammer bag breaking device of a construction waste bag opening machine is shown;

[0024] Figure 3 for Figure 2 An enlarged schematic diagram of the drive assembly shown;

[0025] Figure 4 for Figure 2 A schematic cross-sectional view of the transmission assembly shown;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of location I of the transmission assembly shown;

[0027] Figure 6 for Figure 4 An enlarged schematic diagram of position II of the transmission assembly shown;

[0028] Figure 7 for Figure 4 A three-dimensional schematic diagram of the driving shaft shown;

[0029] Figure 8 for Figure 2 A three-dimensional schematic diagram of the hammer cutter disc shown;

[0030] Fig. 9 for Figure 8 A schematic front view of the hammer head shown;

[0031] Fig.10 for Figure 8 A three-dimensional schematic diagram of the turntable shown;

[0032] Chassis 01, crushing chamber 010, first through hole 0101, support ear plate 0102, reinforcing foot plate 0103, feed inlet 011, discharge port 012, reinforcing support 013, inner lining plate 014, guide plate 015;

[0033] Transmission assembly 02, main seat 1, seat body 10, central shaft hole 11, first bearing hole 12, second bearing hole 13, end ring 14, upper end cover 15, upper cover hole 151, upper positioning pressure ring 152, upper sealing groove 153, lower end cover 16, lower cover hole 161, lower positioning pressure ring 162, lower sealing groove 163, sealing hole 17, reinforced end 18; driving shaft 2, shaft body 20, second shaft shoulder 201, power input end 21, first bearing section 22, first shaft shoulder 221, second bearing section 23, third bearing section 24, third shaft shoulder 241, lower connecting end 25, first keyway 251, threaded blind hole 252, first sealing section 26, fourth Shoulder 261, fifth shoulder 262, second sealing section 27, fine thread section 28, round nut 29; drive assembly 3, motor seat 30, transmission cavity 300, upper wall plate 301, motor through hole 302, left reinforcing plate 303, right reinforcing plate 304, middle through hole 305, main motor 31, motor wheel 32, middle piece 33, driven wheel 34, adjustment assembly 35, adjustment bolt 351, adjustment nut 352, adjustment block 353; flange 4, second keyway 41, stepped through hole 42, coupling key 43, connecting screw 44, main bearing 5, thrust bearing 6, first dynamic seal ring 7, second dynamic seal ring 8, rotating floating seal ring 9;

[0034] Hammer cutter disc 03, hammer cutter head 030, cutter body 031, cutting edge 0310, plug hole 0311, weld hole 0312, supporting surface 0313; earring 032, semicircular ring 0321, end column 0322, U-shaped hole 0323, pin 0324, circular ring chain 033, cutter shaft 034, circular ring sleeve 0341, turntable 035, circular ring groove 0350, axial through hole 0351, axial keyway 0352, retaining ring 0353, first connecting hole 0354, second connecting hole 0355, hammer shaft 036, input disc 0361. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] Figures 1 to 10The diagram schematically shows a hammer bag breaking device of a construction waste bag opening machine according to an embodiment of the present invention. As shown in the figure, the device includes a chassis 01, a transmission device 02 and a hammer cutter disc 03.

[0037] The interior of the chassis 01 is hollow to form a crushing chamber 010. The upper left end of the crushing chamber 010 is provided with a feed inlet 011 and the lower side is open to form a discharge port 012. A first through hole 0101 is formed in the middle of the upper box plate of the crushing chamber 010 and extends to the right to form a support ear plate 0102.

[0038] The transmission device 02 includes a driving assembly 3, a driving shaft 2 and a main seat 1; the main seat 1 is fixed on the first through hole 0101 and the lower end enters the crushing chamber 010, the driving shaft 2 is rotatably connected to the main seat 1, the main motor 31 of the driving assembly 3 is inverted and vertically connected to the supporting ear plate 0102, the motor wheel 32 is connected to the extended shaft of the main motor 31, the motor wheel 32 is connected to the passive wheel 34 through the middle piece 33, and the passive wheel 34 is connected to the upper end of the driving shaft 2, wherein the two ends of the main seat 1 and the driving shaft 2 are connected and sealed respectively by the first dynamic sealing ring 7 and the second dynamic sealing ring 8, and a flange 4 is fixed to the lower end of the driving shaft 2.

[0039] The hammer cutter disc 03 includes a hammer shaft 036, a rotating disc 035 and a plurality of hammer cutter heads 030. The input disc 0361 at the upper end of the hammer shaft 036 is threadedly connected to the flange 4. The rotating disc 035 is key-connected to the hammer shaft 036.

[0040] The circumferential wall of the turntable 035 is concave to form an annular groove 0350, and retaining rings 0353 are formed on both sides of the annular groove 0350. A plurality of knife shafts 034 are fixed on the retaining rings 0353 in a circular array. In the annular groove 0350, one end of a circular chain 033 is sleeved on each knife shaft 034, and the other end of the circular chain 033 is rotatably connected to the earring 032. The earring 032 is vertically connected to the rear wall of the knife body 031 of the hammer cutter head 030, and the outer wall of the knife body 031 is provided with an arc-shaped cutting edge 0310.

[0041] The hammer bag breaking device adopts a hammer knife disc 03 and a transmission device of a sealing mechanism. The hammer knife disc 03 adopts a circular rotating turntable 035 combined with a hammer cutter head 030 driven by a circular chain 033 to perform circular inertial hammering and bag breaking on the packaging bags after linear cutting. Its beneficial effects are: first, the hammer knife disc 03 can completely destroy the packaging bags, and the packaging bags and construction waste are completely separated, which provides a good foundation for subsequent sorting; second, the circular chain 033 can make the hammer cutter head 030 have a softer hammering. During the impact, it can be retracted by the reverse force, which can prevent soft materials such as bags from being entangled on the hammer; third, the circular chain 033 rotates on the knife shaft 034, which can The reaction force of the hammer is unloaded to prevent the disc, the driving shaft and the frame from being subjected to a large torque, which would cause the above parts to deform and the frame to stop shaking; fourthly, the arc-shaped cutting blade 0310 can not only cut the garbage bag well when hammered, but also reduce the soft material of the garbage bag from being entangled on the knife body 1; fifthly, the transmission device of the sealing mechanism can effectively protect the parts and increase the service life. The dynamic sealing ring has better rotational sealing performance and can be used for a long time with less wear and failure; sixthly, the main seat 1 is a suspended seat with a simple structure and high concentration. There are no redundant parts outside the center, so there is more space for breaking bags and no bags floating on top. The driving component has a simple structure and does not occupy internal space.

[0042] Preferably, the driving assembly 3 further includes a motor seat 30 in the shape of a rectangular frame, the motor seat 30 is hollow inside to form a transmission cavity 300, and the middle piece 33, the motor wheel 32, and the driven wheel 34 are located in the transmission cavity 300;

[0043] The main motor 31 is vertically mounted on the upper wall plate 301 of the motor base 30, and the outwardly extending shaft of the main motor 31 passes through the motor through hole 302 of the upper wall plate 301 and fixes the motor wheel 32, which has the beneficial effects of high load transmission capacity and no slipping.

[0044] A left reinforcing plate 303 and a right reinforcing plate 304 are also provided on the lower side of the motor base 30. The left reinforcing plate 303 is fixed to the lower end of the inner side of the left wall panel of the motor base 30, and the right reinforcing plate 304 is vertically fixed to the lower side of the upper wall panel 301. A middle through hole 305 is provided in the middle of the right reinforcing plate 304, and the middle piece 33 passes through the middle through hole 305. The beneficial effect is that it can improve the strength of the motor base 30 and avoid shaking.

[0045] The left reinforcing plate 303 and the right reinforcing plate 304 are fixed on the supporting ear plate 0102. Under the supporting ear plate 0102, two reinforcing foot plates 0103 are respectively vertically connected to the supporting ear plate 0102 and the upper end of the side wall plate of the chassis 01. The beneficial effect is that this arrangement can further ensure that the motor is in a fixed position without left and right deviation.

[0046] Preferably, an adjustment assembly 35 is provided on the outer side of the left reinforcing plate 303 and the inner side of the right reinforcing plate 304. The adjustment assembly 35 includes an adjustment bolt 351, an adjustment nut 352 and an adjustment block 353. The adjustment block 353 is welded and fixed on the upper surface of the chassis 01. The adjustment bolt 351 is threadedly fixed in the threaded hole of the adjustment block 353. Two adjustment nuts 352 are provided on the adjustment bolt 351. The two adjustment nuts 352 are respectively fixed on both sides of the adjustment block 353. The front end of the adjustment bolt 351 presses against the outer side of the left reinforcing plate 303 and the right reinforcing plate 304. The beneficial effect is that the arrangement has high strength and no shaking or the like.

[0047] Preferably, a buffer pad is provided between the input disc 0361 and the flange 4. The beneficial effect is that the load can be transferred flexibly and hard fracture can be avoided.

[0048] Preferably, the motor wheel 32 and the driven wheel 34 are V-shaped pulleys or synchronous pulleys, and the intermediate piece 33 is a corresponding V-shaped belt or synchronous belt.

[0049] Preferably, the diameter of the motor through hole 302 is larger than the outer diameter of the motor wheel 32. The beneficial effect is that the structure is easy to place and quick to disassemble.

[0050] Preferably, the main seat 1 includes a cylindrical seat body 10, a central shaft hole 11 is formed in the middle of the seat body 10, a first bearing hole 12 is formed at both ends of the central shaft hole 11, a second bearing hole 13 with a small diameter is provided under the first bearing hole 12 at the upper end, a main bearing 5 is fixed in each first bearing hole 12, and a thrust bearing 6 is fixed in the second bearing hole 13. The outer wall of the upper end of the seat body 10 extends radially outward to form an end ring 14, and the outer side of the end ring 14 is threadedly connected to an upper bearing end cover 15, and the outer side of the lower surface of the seat body 10 is threadedly connected to a lower bearing end cover 16.

[0051] The end ring 14 is connected to the outer edge of the first through hole 0101, and the seat body 10 is sleeved in the first axial hole 0101 and enters the chassis 01.

[0052] The middle of the driving shaft 2 is located in the central shaft hole 11 and is rotatably connected to the two main bearings 5 ​​and the thrust bearing 6. The beneficial effect is that the thrust bearing 6 and the two main bearings 5 ​​are adopted to improve the anti-impact ability and the load-bearing capacity is stronger.

[0053] The driving shaft 2 includes a power input end 21, a first bearing section 22, a second bearing section 23, a shaft body 20, a third bearing section 24 and a lower connecting end 25, the lower end of the third bearing section 24 is also formed with a fine thread section 28.

[0054] The shaft body 20 is located in the central shaft hole 11, the power input end 21 is keyed to the driven wheel 34, the lower connection end 25 is keyed to the flange 4, the first bearing section 22 and the third bearing end 24 are respectively rotatably connected to a main bearing 5, and the second bearing section 23 is rotatably connected to the thrust bearing 6;

[0055] The fine thread section 28 is threadedly connected with two round nuts 29 , and the upper surface of the round nuts 29 fits against the lower surface of the inner ring of the main bearing 5 .

[0056] Preferably, a first shaft shoulder 221 is formed between the first bearing segment 22 and the second bearing segment 23, and a second shaft shoulder 201 is formed between the shaft body 20 and the third bearing segment 24. The first shaft shoulder 221 fits the upper surface of the inner ring of the thrust bearing 6, and the second shaft shoulder 201 fits the upper surface of the inner ring of the main bearing 5.

[0057] An upper positioning pressing ring 152 is formed on the lower surface of the upper bearing end cover 15, and the outer wall of the upper positioning pressing ring 152 is in contact with the upper end of the first bearing hole 12, and the upper positioning pressing ring 152 is in contact with the upper surface of the outer ring of the main bearing 5.

[0058] A lower positioning pressing ring 162 is formed on the upper surface of the lower bearing end cover 16, and the outer wall of the lower positioning pressing ring 162 fits the lower end of the first bearing hole 12, and the lower positioning pressing ring 162 fits the lower surface of the outer ring of the main bearing 5. The beneficial effects are: the bearing of the arrangement is firmly positioned, has a good fixing effect, has a strong load-bearing capacity, and does not cause abnormalities such as slippage.

[0059] Preferably, a second sealing section 27 is further provided between the third bearing section 24 and the lower connecting end 25, and the second sealing section 27 and the lower cover hole 161 of the lower bearing end cover 16 are matched with a small gap;

[0060] The upper end of the lower cover hole 161 is concave to form a lower sealing groove 163 with a large diameter. A second dynamic sealing ring 8 is provided between the lower sealing groove 163 and the second sealing section 27.

[0061] A first sealing section 26 with a large diameter is formed between the power input end 21 and the first bearing section 22. The first sealing section 26 and the upper cover hole 151 of the upper bearing end cover 15 are matched with a small gap. The upper surface of the upper cover hole 151 is concave to form an upper sealing groove 153. A first dynamic sealing ring 7 is provided between the upper sealing groove 153 and the first sealing section 26.

[0062] A small-diameter sealing hole 17 is also formed at the lower end of the second bearing hole 13, and two rotating floating sealing rings 9 are installed in the sealing hole 17 and the second bearing section 23. The beneficial effect is that the sealing ring of this arrangement has good positioning performance and high sealing performance.

[0063] Preferably, a fourth shaft shoulder 261 is formed between the first sealing section 26 and the power input end 21, a fifth shaft shoulder 262 is formed between the first sealing section 26 and the first bearing section 22, the fourth shaft shoulder 261 is in contact with the lower surface of the driven wheel 34, and the fifth shaft shoulder 262 is in contact with the upper surface of the inner ring of the main bearing 5;

[0064] A third shaft shoulder 241 is formed between the third bearing segment 24 and the first sealing segment 26 . The third shaft shoulder 241 is located above the lower cover hole 161 .

[0065] Preferably, the first dynamic seal ring 7 is a lip seal for the rotating shaft and the second dynamic seal ring 8 is a lip seal for the rotating shaft.

[0066] Preferably, the outer wall of the first bearing hole 12 is also formed with a large diameter reinforcement end, and the reinforcement end 18 is tightly matched with the first through hole 0101. The beneficial effect is: improving the fixing accuracy of the main seat 1 and eliminating shaking.

[0067] Preferably, the main bearing 5 is a spherical roller bearing, and the inner diameter of the upper main bearing 5 is larger than the inner diameter of the lower main bearing 5.

[0068] The thrust bearing 6 is a thrust spherical roller bearing.

[0069] Preferably, a first keyway 251 is provided on the outer cylindrical wall of the lower connecting end 25, and a coupling key 43 is provided between the first keyway 251 and the second keyway 41 of the flange 4.

[0070] A plurality of threaded blind holes 252 are provided on the lower end wall of the lower connecting end 25, and a plurality of stepped through holes 42 are provided on the body of the flange 4. The connecting screws 44 are screwed into the threaded blind holes 252 through the stepped through holes 42, thereby reinforcing the flange 4 to the lower connecting end 25. The beneficial effect is that the lower connecting end 25 of the arrangement has high axial connection and radial connection strength.

[0071] Preferably, one of the retaining rings 0353 has a plurality of first connecting holes 0354 arranged in a circular array, and the other retaining ring 0353 has a plurality of second connecting holes 0355 arranged in a circular array, each second connecting hole 0355 and a first connecting hole 0354 are positioned vertically opposite each other, and each second connecting hole 0355 and the corresponding first connecting hole 0354 fix a knife shaft 034.

[0072] Preferably, an axial through hole 0351 is formed at the center of the turntable 035, and a rectangular groove-shaped axial keyway 0352 is provided on the hole wall of the axial through hole 0351. The axial keyway 0352 and the main hammer shaft 036 are connected by a key bar; the beneficial effect is that the turntable 5 set up has a good torque transmission function.

[0073] Preferably, the first connection hole 0354 is a smooth hole, the second connection hole 0355 is a threaded through hole, the knife shaft 034 is a bolt, the middle section of the bolt is a smooth axis, and the knife shaft 034 passes through the first connection hole 0354 and the annular groove 0350 and is screwed into the second connection hole 0355;

[0074] The first connection hole 0354 and the second connection hole 0355 are light holes, the knife shaft 034 is a bolt, the middle section of the bolt is a light axis, the end of the bolt is sleeved with two fixing nuts, and the knife shaft 034 passes through the first connection hole 0354, the annular groove 0350 and the second connection hole 0355 and is screwed into the fixing nut at the lower end. The beneficial effect is that the above arrangement is convenient for connection and disassembly and maintenance.

[0075] Preferably, there are four first connection holes 0354 and four second connection holes 0355. The beneficial effect is that this arrangement can ensure the continuity of the hammering frequency and completely destroy the material strip.

[0076] Preferably, a hard alloy annular sleeve 0341 is fixed on the cylindrical upper sleeve of the cutter shaft 034. Its beneficial effect is: the annular sleeve 0341 can reduce the friction between the ring chain 033 and the cutter shaft 034, and protect the cutter shaft 034.

[0077] The annular sleeve 0341 and the cylinder of the knife shaft 034 are connected in an integral manner by surface electroplating or by welding.

[0078] Preferably, a thin sheet-like arc-shaped cutting edge 0310 is provided on the front side surface and the middle of the left and right sides of the knife body 031 , respectively. The knife body 031 is formed with a supporting surface 0313 on the upper and lower sides of the cutting edge 0310 .

[0079] Preferably, the blade height distance between the middle protruding position of the cutting blade 0310 and the supporting surface 0313 is 0-15 mm.

[0080] Preferably, the distance between the middle protruding position of the cutting blade 0310 and the supporting surface 0313 is 5 mm. The beneficial effect is that this height can effectively cut the packaging bag without damaging the hammer head.

[0081] Preferably, the front end surface of the cutting edge 0310 is provided with a chamfer;

[0082] Preferably, the cutting edge 0310 is made of a cemented carbide material; the beneficial effect is that the material can cut quickly and well and has a long service life.

[0083] Preferably, the cutting edge 0310 and the blade body 031 are integrally connected or welded.

[0084] Preferably, the earring 032 includes a semicircular ring 0321, both ends of the semicircular ring 0321 extend outward to form an end post 0322, the end post 0322 and the semicircular ring 0321 surround each other to form a U-shaped hole 0323, and the end post 0322 is vertically fixed to the rear side of the knife body 031;

[0085] Preferably, the blade body 031 and the earring 032 are integrally connected or welded.

[0086] Preferably, two plug holes 0311 are provided on the rear side of the blade body 031, and the plug holes 0311 and the end posts 0322 are interference fit, and after the end posts 0322 are inserted into the plug holes 0311, the end posts 0322 and the rear side of the blade body 031 are welded into one. The beneficial effects are: the setting is firmly connected, convenient for processing, and the hammer blade head 030 has high strength.

[0087] The front end of each end column 0322 is machined to form a small-diameter cylindrical pin 0324. The pin 0324 and the plug hole 0311 on the rear side of the knife body 031 are interference fit. After the pin 0324 is inserted into the plug hole 0311, the end column 0322 and the rear side of the knife body 031 are welded into one.

[0088] Preferably, the outer end of the plug hole 0311 forms a large diameter welding hole 0312, the end of the end post 0322 is located in the welding hole 0312, and the ring between the welding hole 0312 and the end post 0322 is the welding area. The beneficial effect is that the arrangement has high strength and no welding seam leakage.

[0089] Preferably, the cross-sections of the semicircular ring 0321 and the end post 0322 are circular;

[0090] The cutting edge 0310 is in the shape of a circular arc or an elliptical arc;

[0091] The blade body 031 is rectangular, and the support surface 0313 is a vertical surface.

[0092] Preferably, the outer side of the outer plate of the chassis 01 is further provided with longitudinal and transverse reinforcing braces 013, and the inner side of the outer plate of the chassis 01 is provided with an inner lining plate 014, and a plurality of inclined guide plates 015 are threadedly connected to the inner lining plate 014. The beneficial effect is that the chassis of this arrangement has high strength, can effectively protect the impact surface, has high stability in long-term use, and has no shaking.

[0093] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A bag breaking device for a building waste bag opening machine, characterized in that: Including chassis, transmission device and hammer cutter disc, The inside of the chassis is hollow to form a crushing chamber, the upper left end of the crushing chamber is provided with a feed inlet and the lower side is open to form a discharge port, a first through hole is formed in the middle of the upper box plate of the crushing chamber and extends to the right to form a supporting ear plate, The transmission device includes a driving assembly, a driving shaft and a main seat; the main seat is fixed on the first through hole and the lower end enters the crushing chamber, the driving shaft is rotatably connected to the main seat, the main motor of the driving assembly is inverted and vertically connected to the supporting ear plate, the extended shaft of the main motor is connected to the motor wheel, the motor wheel is connected to the passive wheel through the middle piece, and the passive wheel is connected to the upper end of the driving shaft, wherein the two ends of the main seat and the driving shaft are connected and sealed respectively by the first dynamic sealing ring and the second dynamic sealing ring, and a flange is fixed at the lower end of the driving shaft. The hammer cutter disc includes a hammer shaft, a rotating disc and a plurality of hammer cutter heads. The input disc at the upper end of the hammer shaft is threadedly connected to the flange, the rotating disc key is connected to the hammer shaft, the circumferential wall of the rotating disc is concave to form a circular groove, retaining rings are formed on both sides of the circular groove, and a plurality of cutter shafts are fixed on the retaining rings in a circular array. In the circular groove, one end of a circular ring chain is sleeved on each cutter shaft, and the other end of the circular ring chain is rotatably connected to an earring, the earring is vertically connected to the rear wall of the cutter body of the hammer cutter head, and the outer wall of the cutter body is provided with an arc-shaped cutting edge; The driving assembly also includes a motor seat in the shape of a rectangular frame, the interior of the motor seat is hollow to form a transmission cavity, and the middle piece, the motor wheel, and the driven wheel are located in the transmission cavity; The left reinforcement plate and the right reinforcement plate are fixed on the supporting ear plate. Under the supporting ear plate, two reinforcement foot plates are vertically connected to the supporting ear plate and the upper end of the side wall plate of the chassis respectively. The main seat includes a cylindrical seat body, a central shaft hole is formed in the middle of the seat body, a first bearing hole is formed at both ends of the central shaft hole, a second bearing hole with a small diameter is provided under the first bearing hole at the upper end, a main bearing is fixed in the first bearing hole, a thrust bearing is fixed in the second bearing hole, the middle of the driving shaft is located in the central shaft hole and is rotatably connected to the two main bearings and the thrust bearing respectively. The outer wall of the upper end of the seat body extends radially outward to form an end ring, the outer side of the end ring is threadedly connected to an upper bearing end cover, the outer side of the lower surface of the seat body is threadedly connected to a lower bearing end cover, an upper positioning pressure ring is formed on the lower surface of the upper bearing end cover, the outer wall of the upper positioning pressure ring fits the upper end of the first bearing hole, the upper positioning pressure ring fits the upper surface of the outer ring of the main bearing, a lower positioning pressure ring is formed on the upper surface of the lower bearing end cover, the outer wall of the lower positioning pressure ring fits the lower end of the first bearing hole, and the lower positioning pressure ring fits the lower surface of the outer ring of the main bearing; A plurality of first connection holes are arranged in a circular array on one retaining ring, and a plurality of second connection holes are arranged in a circular array on the other retaining ring. A knife shaft is fixed to each second connection hole and the first connection hole opposite thereto; a hard alloy annular sleeve is fixed to the cylindrical upper sleeve of the knife shaft; The front side surface and the middle of the left and right side surfaces of the knife body are respectively provided with thin slice-shaped arc-shaped cutting edges, and the knife body forms supporting surfaces on the upper and lower sides of the cutting edges; The blade height distance between the middle protruding position of the cutting edge and the supporting surface is 5 mm.

2. The hammer bag breaking device of the construction waste bag opening machine according to claim 1 is characterized in that: The second sealing section of the driving shaft and the lower cover hole of the lower bearing end cover are matched with a small gap, and the upper end of the lower cover hole is concave to form a lower sealing groove with a large diameter, and a second dynamic sealing ring is arranged in the lower sealing groove; The first sealing section of the driving shaft and the upper cover hole of the upper bearing end cover are matched with a small gap, and the upper surface of the upper cover hole is concave to form an upper sealing groove, and a first dynamic sealing ring is arranged in the upper sealing groove; A sealing hole with a small diameter is also formed at the lower end of the second bearing hole, and two rotating floating sealing rings are installed in the sealing hole.

3. The hammer bag breaking device of the construction waste bag opening machine according to claim 1 is characterized in that: Adjustment components are provided on the outer side of the left reinforcement plate and the inner side of the right reinforcement plate. The adjustment components include adjustment bolts, adjustment nuts and adjustment blocks. The adjustment blocks are welded and fixed to the upper surface of the chassis. The adjustment bolts are threaded and fixed in the threaded holes of the adjustment blocks. Two adjustment nuts are provided on the adjustment bolts. The two adjustment nuts are respectively fixed on both sides of the adjustment blocks. The front end of the adjustment bolts presses tightly against the outer side of the left reinforcement plate and the right reinforcement plate.

4. The hammer bag breaking device of the construction waste bag opening machine according to claim 1 is characterized in that: A buffer pad is also provided between the input disc and the flange.

5. The hammer bag breaking device of the construction waste bag opening machine according to claim 1 is characterized in that: The earrings include a semicircular ring, both ends of which extend outward to form end posts, and the end posts and the semicircular ring surround each other to form a U-shaped hole; two plug holes are provided on the rear side of the knife body, and the plug holes and the end posts are interference fit. After the end posts are inserted into the plug holes, the end posts and the rear side of the knife body are welded into one.

6. The hammer bag breaking device of the construction waste bag opening machine according to claim 1 is characterized in that: The outer side of the outer plate of the chassis is also provided with longitudinal and transverse reinforcing braces, and the inner side of the outer plate of the chassis is provided with an inner lining plate, on which a plurality of inclined guide plates are threadedly connected.

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